From 5325bf64305963eca0e14cd07c227b14d1849eaf Mon Sep 17 00:00:00 2001 From: Michel Pollet Date: Sat, 16 Jun 2012 09:41:35 +0100 Subject: [PATCH] libc3: Deleted Following the reprap board project on github Signed-off-by: Michel Pollet --- examples/shared/libc3/COPYING | 674 ---------- examples/shared/libc3/Makefile | 104 -- examples/shared/libc3/README.md | 107 -- examples/shared/libc3/doc/libc3-flowchart.dot | 220 ---- examples/shared/libc3/libc3.pc | 12 - examples/shared/libc3/src/c3.c | 30 - examples/shared/libc3/src/c3.h | 35 - examples/shared/libc3/src/c3algebra.c | 1081 ----------------- examples/shared/libc3/src/c3algebra.h | 226 ---- examples/shared/libc3/src/c3arcball.c | 254 ---- examples/shared/libc3/src/c3arcball.h | 125 -- examples/shared/libc3/src/c3cairo.c | 105 -- examples/shared/libc3/src/c3cairo.h | 55 - examples/shared/libc3/src/c3camera.c | 375 ------ examples/shared/libc3/src/c3camera.h | 236 ---- examples/shared/libc3/src/c3config-darwin.h | 6 - examples/shared/libc3/src/c3config-linux.h | 6 - examples/shared/libc3/src/c3config.h | 33 - examples/shared/libc3/src/c3context.c | 178 --- examples/shared/libc3/src/c3context.h | 135 -- examples/shared/libc3/src/c3driver.h | 44 - examples/shared/libc3/src/c3driver_context.h | 69 -- examples/shared/libc3/src/c3driver_geometry.h | 44 - examples/shared/libc3/src/c3driver_object.h | 65 - examples/shared/libc3/src/c3geometry.c | 262 ---- examples/shared/libc3/src/c3geometry.h | 217 ---- examples/shared/libc3/src/c3light.c | 46 - examples/shared/libc3/src/c3light.h | 54 - examples/shared/libc3/src/c3lines.c | 142 --- examples/shared/libc3/src/c3lines.h | 53 - examples/shared/libc3/src/c3object.c | 242 ---- examples/shared/libc3/src/c3object.h | 124 -- examples/shared/libc3/src/c3pixels.c | 100 -- examples/shared/libc3/src/c3pixels.h | 110 -- examples/shared/libc3/src/c3program.c | 191 --- examples/shared/libc3/src/c3program.h | 102 -- examples/shared/libc3/src/c3quaternion.c | 249 ---- examples/shared/libc3/src/c3quaternion.h | 93 -- examples/shared/libc3/src/c3sphere.c | 67 - examples/shared/libc3/src/c3sphere.h | 40 - examples/shared/libc3/src/c3stl.c | 128 -- examples/shared/libc3/src/c3stl.h | 35 - examples/shared/libc3/src/c3texture.c | 113 -- examples/shared/libc3/src/c3texture.h | 50 - examples/shared/libc3/src/c3transform.c | 63 - examples/shared/libc3/src/c3transform.h | 49 - examples/shared/libc3/src/c3types.h | 45 - examples/shared/libc3/src/c_array.h | 137 --- examples/shared/libc3/src/c_utils.c | 67 - examples/shared/libc3/src/c_utils.h | 177 --- examples/shared/libc3/srcgl/c3gl.c | 426 ------- examples/shared/libc3/srcgl/c3gl.h | 33 - examples/shared/libc3/srcgl/c3gl_fbo.c | 196 --- examples/shared/libc3/srcgl/c3gl_fbo.h | 59 - 54 files changed, 7889 deletions(-) delete mode 100644 examples/shared/libc3/COPYING delete mode 100644 examples/shared/libc3/Makefile delete mode 100644 examples/shared/libc3/README.md delete mode 100644 examples/shared/libc3/doc/libc3-flowchart.dot delete mode 100644 examples/shared/libc3/libc3.pc delete mode 100644 examples/shared/libc3/src/c3.c delete mode 100644 examples/shared/libc3/src/c3.h delete mode 100644 examples/shared/libc3/src/c3algebra.c delete mode 100644 examples/shared/libc3/src/c3algebra.h delete mode 100644 examples/shared/libc3/src/c3arcball.c delete mode 100644 examples/shared/libc3/src/c3arcball.h delete mode 100644 examples/shared/libc3/src/c3cairo.c delete mode 100644 examples/shared/libc3/src/c3cairo.h delete mode 100644 examples/shared/libc3/src/c3camera.c delete mode 100644 examples/shared/libc3/src/c3camera.h delete mode 100644 examples/shared/libc3/src/c3config-darwin.h delete mode 100644 examples/shared/libc3/src/c3config-linux.h delete mode 100644 examples/shared/libc3/src/c3config.h delete mode 100644 examples/shared/libc3/src/c3context.c delete mode 100644 examples/shared/libc3/src/c3context.h delete mode 100644 examples/shared/libc3/src/c3driver.h delete mode 100644 examples/shared/libc3/src/c3driver_context.h delete mode 100644 examples/shared/libc3/src/c3driver_geometry.h delete mode 100644 examples/shared/libc3/src/c3driver_object.h delete mode 100644 examples/shared/libc3/src/c3geometry.c delete mode 100644 examples/shared/libc3/src/c3geometry.h delete mode 100644 examples/shared/libc3/src/c3light.c delete mode 100644 examples/shared/libc3/src/c3light.h delete mode 100644 examples/shared/libc3/src/c3lines.c delete mode 100644 examples/shared/libc3/src/c3lines.h delete mode 100644 examples/shared/libc3/src/c3object.c delete mode 100644 examples/shared/libc3/src/c3object.h delete mode 100644 examples/shared/libc3/src/c3pixels.c delete mode 100644 examples/shared/libc3/src/c3pixels.h delete mode 100644 examples/shared/libc3/src/c3program.c delete mode 100644 examples/shared/libc3/src/c3program.h delete mode 100644 examples/shared/libc3/src/c3quaternion.c delete mode 100644 examples/shared/libc3/src/c3quaternion.h delete mode 100644 examples/shared/libc3/src/c3sphere.c delete mode 100644 examples/shared/libc3/src/c3sphere.h delete mode 100644 examples/shared/libc3/src/c3stl.c delete mode 100644 examples/shared/libc3/src/c3stl.h delete mode 100644 examples/shared/libc3/src/c3texture.c delete mode 100644 examples/shared/libc3/src/c3texture.h delete mode 100644 examples/shared/libc3/src/c3transform.c delete mode 100644 examples/shared/libc3/src/c3transform.h delete mode 100644 examples/shared/libc3/src/c3types.h delete mode 100644 examples/shared/libc3/src/c_array.h delete mode 100644 examples/shared/libc3/src/c_utils.c delete mode 100644 examples/shared/libc3/src/c_utils.h delete mode 100644 examples/shared/libc3/srcgl/c3gl.c delete mode 100644 examples/shared/libc3/srcgl/c3gl.h delete mode 100644 examples/shared/libc3/srcgl/c3gl_fbo.c delete mode 100644 examples/shared/libc3/srcgl/c3gl_fbo.h diff --git a/examples/shared/libc3/COPYING b/examples/shared/libc3/COPYING deleted file mode 100644 index 94a9ed0..0000000 --- a/examples/shared/libc3/COPYING +++ /dev/null @@ -1,674 +0,0 @@ - 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If not, see . - -Also add information on how to contact you by electronic and paper mail. - - If the program does terminal interaction, make it output a short -notice like this when it starts in an interactive mode: - - Copyright (C) - This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. - This is free software, and you are welcome to redistribute it - under certain conditions; type `show c' for details. - -The hypothetical commands `show w' and `show c' should show the appropriate -parts of the General Public License. Of course, your program's commands -might be different; for a GUI interface, you would use an "about box". - - You should also get your employer (if you work as a programmer) or school, -if any, to sign a "copyright disclaimer" for the program, if necessary. -For more information on this, and how to apply and follow the GNU GPL, see -. - - The GNU General Public License does not permit incorporating your program -into proprietary programs. If your program is a subroutine library, you -may consider it more useful to permit linking proprietary applications with -the library. If this is what you want to do, use the GNU Lesser General -Public License instead of this License. But first, please read -. diff --git a/examples/shared/libc3/Makefile b/examples/shared/libc3/Makefile deleted file mode 100644 index 54cda3b..0000000 --- a/examples/shared/libc3/Makefile +++ /dev/null @@ -1,104 +0,0 @@ - -VERSION = 0.1.1 -REVISION = 1 - -SHELL := ${shell which bash} - -IPATH += src -IPATH += srcgl -VPATH += src -VPATH += srcgl - -OBJ = obj-${shell $(CC) -dumpmachine} - -C3SRC = ${wildcard src/*.c} -C3OBJ = ${patsubst src/%,${OBJ}/%,${C3SRC:.c=.lo}} - -C3GLSRC = ${wildcard srcgl/*.c} -C3GLOBJ = ${patsubst srcgl/%,${OBJ}/%,${C3GLSRC:.c=.lo}} - -CC = clang -PKGCONFIG = pkg-config -INSTALL = install - -PLATFORM = ${shell uname | tr '[A-Z]' '[a-z]'} - -ifeq (${PLATFORM}, darwin) -# you need to install libtool via 'brew install libtool' on the mac -LIBTOOL = glibtool -else -LIBTOOL = libtool -endif - -CONFIG_H = c3config-${PLATFORM}.h -CPPCAIRO += ${shell $(PKGCONFIG) --cflags pango cairo} - -CFLAGS = -g -O2 -CPPFLAGS += --std=gnu99 -fPIC -CPPFLAGS += ${patsubst %,-I%,${subst :, ,${IPATH}}} -CPPFLAGS += $(CPPCAIRO) - -LDFLAGS += - -DESTDIR = /usr/local - --include ${wildcard .make.options*} - -all: ${OBJ} src/$(CONFIG_H) ${OBJ}/libc3.la ${OBJ}/libc3gl.la - -${OBJ}: - mkdir -p ${OBJ} - -ifneq (${V}, 1) -E=@ -LIBTOOL += --quiet -endif - -src/$(CONFIG_H): Makefile - $(E)rm -f $@ - $(E)echo CONFIG $@ - $(E)( \ - printf "#ifndef __C3_CONFIG__\n#define __C3_CONFIG__\n"; \ - printf "#define CONFIG_C3_VERSION \"$(VERSION)\"\n"; \ - printf "#define CONFIG_C3_PLATFORM \"$(PLATFORM)\"\n"; \ - $(PKGCONFIG) --exists pango cairo || printf "// " ; \ - printf "#define CONFIG_C3_CAIRO 1\n"; \ - printf "#endif\n"; \ - ) >$@ - -${OBJ}/libc3.la: ${C3OBJ} - @echo LINK $@ - $(E)$(LIBTOOL) --mode=link --tag=CC \ - $(CC) $(CPPFLAGS) $(CFLAGS) \ - $^ -o $@ \ - -version-info 0:1:0 \ - -rpath $(DESTDIR)/lib $(LDFLAGS) - -${OBJ}/libc3gl.la: ${C3GLOBJ} - @echo LINK $@ - $(E)$(LIBTOOL) --mode=link --tag=CC \ - $(CC) $(CPPFLAGS) $(CFLAGS) \ - $^ -o $@ \ - -version-info 0:1:0 \ - -rpath $(DESTDIR)/lib $(LDFLAGS) - -${OBJ}/%.lo: %.c - @echo CC $< - $(E)$(LIBTOOL) --mode=compile --tag=CC \ - $(CC) $(CPPFLAGS) $(CFLAGS) -MT $@ -MMD \ - $< -c -o $@ - -install: - mkdir -p $(DESTDIR)/lib/pkgconfig $(DESTDIR)/include/c3 - rm -f $(DESTDIR)/lib/libc3* $(DESTDIR)/include/c3/* - $(INSTALL) src/*.h $(DESTDIR)/include/c3/ - cp -a ${OBJ}/.libs/*.a ${OBJ}/.libs/*.so* $(DESTDIR)/lib/ - sed -e 's|PREFIX|${DESTDIR}|g' -e 's|VERSION|${VERSION}|g' \ - libc3.pc >$(DESTDIR)/lib/pkgconfig/libc3.pc - -clean: - rm -rf ${OBJ} - -# include the dependency files generated by gcc, if any --include ${wildcard ${OBJ}/*.d} - \ No newline at end of file diff --git a/examples/shared/libc3/README.md b/examples/shared/libc3/README.md deleted file mode 100644 index 018ecb2..0000000 --- a/examples/shared/libc3/README.md +++ /dev/null @@ -1,107 +0,0 @@ -**libc3** - No frill 'scene' graph library in C -===== -(C) 2012 Michel Pollet - -**WARNING** This API is not your nanny. It is made to be lean, mean, efficient -with no frill, no asserts, no bounds checking, no sugar coating. - -On the other hand it's fast, reasonably clean and is a micro-fraction of the -other giganormous 'scene graphs' or 'game engine' libraries around. - -It's vaguely inspired by THREE.js funnily enough, because it allows you to -hack around and quickly get stuff on screen with the minimal amount of -effort. - -Introduction ------------ -The general idea is that the library keeps track of geometry and stuff, but doesn't -do *any* opengl or related calls. Instead, it uses callbacks into code that will -take care of the rendering related tasks. - -So for example a c3pixels represents a texture, but a callback into the rendering -layer will be responsible to push the pixels to OpenGL, and store the object back -into the c3pixels for reference. - -Status -------- -The API is generally functional, but it's brand new. I try not to add bits that -I aren't needed, and I also don't add stuff that isn't tested. - -There is an ASCII STL file loader that works, and a few other bit of geometry related -helpers. - -It's currently used in one 'serious' project and also in my [3D printer simulator](https://github.com/buserror-uk/simavr/tree/master/examples/board_reprap), -as part of simavr. There you cal also find the "opengl renderer" set of callbacks, in the -near future, this layer will be part of a *libc3-gl* companion library. - -General Roadmap ---------------- -There is a [PDF Flowchart](https://github.com/buserror-uk/libc3/raw/master/doc/libc3-flowchart.pdf) -of how things are mostly organized as far as data structure goes, but the following is a -breakdown of the major components. - -The API has various bits: -* c3algebra: C derivative of an old C++ piece of code I had lying around and that has -been present in my toolset for a long time. It gives you *vectors* (c3vec2, c3vec3, c3vec4) -and *matrices* (c3mat3, c3mat4) with various tools to manipulate them. -* c3quaternion: Quaternion implementation using c3algebra -* c3camera/c3arcball: camera manipulation bits - -The basic data structure is as follow: -* *c3context*: - Hosts a "root" object, and a list of 'viewpoints' (ie either cameras, or lights). - it can reproject the objects & geometries, and call the callbacks to draw them. - - The context also keeps a list of *c3pixels* and *c3program* that are referenced - by the geometries. -* *c3object*: - * Has a list of (sub) c3objects - * Has a list of c3transforms (ie matrices) - * Has a list of c3geometry (ie real vertices and stuff) - The object is a container for other objects, and for geometry itself. Objects don't - necessary have geometry and/or sub objects, and don't even need transforms if their - vertices are already projected. -* *c3geometry*: - * Has a 'type' (raw for simple vertices, texture, triangles etc) - * Has a 'subtype' (mostly can be used to draw GL types) - * Has a 'material' (ie color, texture, a GPU program... to be completed) - * Has a list of vertices - * Has a cached copy of a vertices when it has been 'projected' - * Has a list of texture coordinates (optional) - * Has a list of vertices colors (optional) - * Had a list of vertices indexes (optional) -* *c3transform*: - Is just a sugar coated matrix, with an optional name. - -Also there are: -* *c3pixels*: - Is just a wrapper/holder for some pixels, either allocated, or inherited, - it's mostly used for *c3texture* -* *c3texture*: - Associates a *c3geometry* with a *c3pixels* and has a standard Quad - for vertices. The OpenGL drawing is not done there, it's done by the application using - the generic *c3context* driver. -* *c3cairo*: - Placeholder for now, inherits from *c3texture* and will contain a - cairo surface mapped to a GL texture. - -Draw Drivers "Inheritance" ------------- -Various object uses static tables of callbacks to implement their behaviours -it's kinda cheap c++ inheritance, without the usual bloat. - -There just a couple macros to call the driver chain for a particular function call. -The relevant bits are in c3driver*.h. - -Mostly the code looks for a matching callback in a static table, and call it if found. -If that callback wants, it can also call the inherited object callback too. - -Dirtyness ---------- -There is a notion of 'dirtyness' in the tree, when you touch a *c3transform*, and/remove -objects and geometry, a dirty bit is propagated up the tree of object. This tells the -rendering it needs to reproject the dirty bits and repopulate the projected vertice -cache. - -The 'dirty' bit moves both ways, when setting a dirty bit to true, it propagates upward, -when you set it to false, it propagates downward in the tree. diff --git a/examples/shared/libc3/doc/libc3-flowchart.dot b/examples/shared/libc3/doc/libc3-flowchart.dot deleted file mode 100644 index 4312255..0000000 --- a/examples/shared/libc3/doc/libc3-flowchart.dot +++ /dev/null @@ -1,220 +0,0 @@ -digraph g { -// label = "libc3\n - lightweight scene graph library - Data Structure Hierarchy"; - label = < - libc3 - - http://github.com/buserror-uk/libc3 - - Lightweight C Scene Graph Library - Data Structure Flowchart - >; - node [fontsize=24,shape=box]; - // concentrate=true; - - c3context [shape=none, label=< - - - -
c3context
- Keeps track of a root c3object,
- possible multiple views, and also stores
- texture pixels and shader programs -
- >]; - c3context_view [shape=none, label=< - - - -
c3context_view
- Keep tracks of a scene point of view.
- used for the eye(s), and the light(s) -
- >]; - c3camera [shape=none, label=< - - - -
c3camera
- Keeps an 'eye' point, a 'lookat'
- point the related vectors, and a
- transform matrix -
- >]; - c3object [shape=none, label=< - - - -
c3object
- Anchor point that holds optional
- transform matrices, other sub-c3objects
- and c3geometries
-
- >]; - c3transform [shape=none, label=< - - - -
c3transform
- Holds a matrix to be applies to
- a c3object and it's descendants -
- >]; - c3cairo [shape=none, label=< - - - -
c3cairo
- Maps a Cairo image surface
- to a c3texture - Optional. -
- >]; - c3texture [shape=none, label=< - - - -
c3texture
- Provides a geometry to render a
- c3pixel (and anonymous texture) -
- >]; - c3geometry [shape=none, label=< - - - -
c3geometry
- Contains the real drawing data, vertices,
- tex coordinates, normals and a material. -
- >]; - c3pixels [shape=none, label=< - - - -
c3pixels
- Basic description of a pixmap
- to be loaded as a texture. -
- >]; - c3program [shape=none, label=< - - - -
c3program
- Holds a vertex/fragment/... program,
- also parses them for uniform/parameters -
- >]; - c3color [shape=none, label=< - - - -
c3color
- Base RGBA float color -
- >]; - c3vertex [shape=none, label=< - - - -
c3vertex
- Array of X,Y,Z coordinates,
- with associated buffer object -
- >]; - c3normal [shape=none, label=< - - - -
c3normal
- Array of normals with
- associated buffer object -
- >]; - c3tex [shape=none, label=< - - - -
c3tex
- Array of texture coordinates
- with associated buffer object -
- >]; - c3indice [shape=none, label=< - - - -
c3indice
- Array of indices into
- the other arrays -
- >]; - c3mat [shape=none, label=< - - - -
c3mat
- Geometry material related data
- ie color, texture, program. -
- >]; - c3stl [shape=none, label=< - - - -
c3stl
- Loads ASCII STL model files
- and generates corresponding c3object. -
- >]; - c3lines [shape=none, label=< - - - -
c3lines
- Converts segments into a textured
- triangle mesh for wide,
- antialiasied lines -
- >]; - c3sphere [shape=none, label=< - - - -
c3sphere
- Creares geometry for a sphere
- with texture coordinaes&normals -
- >]; - c3context -> c3context_view; - c3context -> c3object [style=bold]; - c3context -> c3pixels [style=dashed]; - c3context -> c3program [style=dashed]; - - c3context_view -> c3camera; - - { rank = same; c3object; c3stl; } - { rank = same; c3geometry; c3lines; c3sphere; } - c3stl -> c3object [ weight=0.1, color="gray" ]; - c3lines -> c3geometry [ weight=0.1, color="gray" ]; - c3sphere -> c3geometry [ weight=0.1, color="gray" ]; - - c3texture -> c3geometry; - { node [style=dashed]; c3cairo; } - c3cairo -> c3texture; - - c3object -> c3geometry [style=bold]; - c3object -> c3texture; - c3object -> c3cairo; - c3object -> c3transform; - - c3object -> c3object; - - c3geometry -> c3vertex; - c3geometry -> c3normal ; - c3geometry -> c3tex; - c3geometry -> c3mat; - c3geometry -> c3indice; - - c3mat -> c3pixels; - c3mat -> c3program; - c3mat -> c3color; - - c3texture -> c3pixels; -}; diff --git a/examples/shared/libc3/libc3.pc b/examples/shared/libc3/libc3.pc deleted file mode 100644 index 3413e95..0000000 --- a/examples/shared/libc3/libc3.pc +++ /dev/null @@ -1,12 +0,0 @@ -libc3.pc: -prefix=PREFIX -exec_prefix=${prefix} -includedir=${prefix}/include -libdir=${exec_prefix}/lib - -Name: libc3 -Description: Lightweight scene graph library in C -Version: VERSION -Cflags: -I${includedir} -Requires.private: pangocairo -Libs: -L${libdir} -llibc3 diff --git a/examples/shared/libc3/src/c3.c b/examples/shared/libc3/src/c3.c deleted file mode 100644 index 4901765..0000000 --- a/examples/shared/libc3/src/c3.c +++ /dev/null @@ -1,30 +0,0 @@ -/* - c3.c - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#include "c3.h" -#include "c3config.h" - -const char * -c3version() -{ - return CONFIG_C3_VERSION; -} diff --git a/examples/shared/libc3/src/c3.h b/examples/shared/libc3/src/c3.h deleted file mode 100644 index d6ca68f..0000000 --- a/examples/shared/libc3/src/c3.h +++ /dev/null @@ -1,35 +0,0 @@ -/* - c3.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3_H___ -#define __C3_H___ - -#include "c3context.h" -#include "c3object.h" -#include "c3geometry.h" -#include "c3transform.h" -#include "c3texture.h" - -const char * -c3version(); - -#endif /* __C3_H___ */ diff --git a/examples/shared/libc3/src/c3algebra.c b/examples/shared/libc3/src/c3algebra.c deleted file mode 100644 index c78b1fb..0000000 --- a/examples/shared/libc3/src/c3algebra.c +++ /dev/null @@ -1,1081 +0,0 @@ -/* - c3algebra.c - - Copyright 2008-2012 Michel Pollet - - Derivative and inspiration from original C++: - Paul Rademacher & Jean-Francois DOUEG, - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - -#include -#include -#include "c3algebra.h" - -#ifndef MAX -#define MAX(a,b) ((a)>(b) ? (a) : (b)) -#define MIN(a,b) ((a)<(b) ? (a) : (b)) -#endif - -/**************************************************************** - * * - * c3vec2 Member functions * - * * - ****************************************************************/ - -/******************** c3vec2 CONSTRUCTORS ********************/ - -c3vec2 c3vec2_zero() -{ - c3vec2 n;// = { .x = 0, .y = 0 };// older gcc <4.6 doesn't like this - n.x = n.y = 0; - return n; -} - -c3vec2 c3vec2f(c3f x, c3f y) -{ - c3vec2 v;// = { .x = x, .y = y };// older gcc <4.6 doesn't like this - v.x = x; v.y = y; - return v; -} - -/******************** c3vec2 ASSIGNMENT OPERATORS ******************/ - -c3vec2 c3vec2_add(c3vec2 a, const c3vec2 v) -{ - a.n[VX] += v.n[VX]; - a.n[VY] += v.n[VY]; - return a; -} - -c3vec2 c3vec2_sub(c3vec2 a, const c3vec2 v) -{ - a.n[VX] -= v.n[VX]; - a.n[VY] -= v.n[VY]; - return a; -} - -c3vec2 c3vec2_mulf(c3vec2 a, c3f d) -{ - a.n[VX] *= d; - a.n[VY] *= d; - return a; -} - -c3vec2 c3vec2_divf(c3vec2 a, c3f d) -{ - c3f d_inv = 1.0f/d; - a.n[VX] *= d_inv; - a.n[VY] *= d_inv; - return a; -} - -/******************** c3vec2 SPECIAL FUNCTIONS ********************/ - - -c3f c3vec2_length2(const c3vec2 a) -{ - return a.n[VX]*a.n[VX] + a.n[VY]*a.n[VY]; -} - -c3f c3vec2_length(const c3vec2 a) -{ - return (c3f) sqrt(c3vec2_length2(a)); -} - -c3vec2 c3vec2_normalize(const c3vec2 a) // it is up to caller to avoid divide-by-zero -{ - return c3vec2_divf(a, c3vec2_length(a)); -} - -c3vec2 c3vec2_apply(c3vec2 a, V_FCT_PTR fct) -{ - a.n[VX] = fct(a.n[VX]); - a.n[VY] = fct(a.n[VY]); - return a; -} - - -/******************** c3vec2 FRIENDS *****************************/ - -c3vec2 c3vec2_minus(const c3vec2 a) -{ - return c3vec2f(-a.n[VX],-a.n[VY]); -} - -c3vec2 c3mat3_mulv2(const c3mat3p a, const c3vec2 v) -{ - c3vec2 av; - - av.n[VX] = a->v[0].n[VX]*v.n[VX] + a->v[0].n[VY]*v.n[VY] + a->v[0].n[VZ]; - av.n[VY] = a->v[1].n[VX]*v.n[VX] + a->v[1].n[VY]*v.n[VY] + a->v[1].n[VZ]; -// av.n[VZ] = a.v[2].n[VX]*v.n[VX] + a.v[2].n[VY]*v.n[VY] + a.v[2].n[VZ]; - - return av; -} - -c3vec2 c3vec2_mulm3(const c3vec2 v, const c3mat3p a) -{ - c3mat3 t = c3mat3_transpose(a); - return c3mat3_mulv2(&t, v); -} - -c3vec3 c3mat3_mulv3(const c3mat3p a, const c3vec3 v) -{ - c3vec3 av; - - av.n[VX] = a->v[0].n[VX]*v.n[VX] + a->v[0].n[VY]*v.n[VY] + a->v[0].n[VZ]*v.n[VZ]; - av.n[VY] = a->v[1].n[VX]*v.n[VX] + a->v[1].n[VY]*v.n[VY] + a->v[1].n[VZ]*v.n[VZ]; - av.n[VZ] = a->v[2].n[VX]*v.n[VX] + a->v[2].n[VY]*v.n[VY] + a->v[2].n[VZ]*v.n[VZ]; - - return av; -} - -c3vec3 c3vec3_mulm3(const c3vec3 v, const c3mat3p a) -{ - c3mat3 t = c3mat3_transpose(a); - return c3mat3_mulv3(&t, v); -} - -c3f c3vec2_dot(const c3vec2 a, const c3vec2 b) -{ - return a.n[VX]*b.n[VX] + a.n[VY]*b.n[VY]; -} - -c3vec3 c3vec2_cross(const c3vec2 a, const c3vec2 b) -{ - return c3vec3f(0.0, 0.0, a.n[VX] * b.n[VY] - b.n[VX] * a.n[VY]); -} - -int c3vec2_equal(const c3vec2 a, const c3vec2 b) -{ - return (a.n[VX] == b.n[VX]) && (a.n[VY] == b.n[VY]); -} - - -c3vec2 c3vec2_min(const c3vec2 a, const c3vec2 b) -{ - return c3vec2f(MIN(a.n[VX], b.n[VX]), MIN(a.n[VY], b.n[VY])); -} - -c3vec2 c3vec2_max(const c3vec2 a, const c3vec2 b) -{ - return c3vec2f(MAX(a.n[VX], b.n[VX]), MAX(a.n[VY], b.n[VY])); -} - -c3vec2 c3vec2_prod(const c3vec2 a, const c3vec2 b) -{ - return c3vec2f(a.n[VX] * b.n[VX], a.n[VY] * b.n[VY]); -} - -/**************************************************************** - * * - * c3vec3 Member functions * - * * - ****************************************************************/ - -// CONSTRUCTORS - -c3vec3 c3vec3_zero() -{ - c3vec3 n;// = { .x = 0, .y = 0, .z = 0 };// older gcc <4.6 doesn't like this - n.x = n.y = n.z = 0; - return n; -} - -c3vec3 c3vec3f(c3f x, c3f y, c3f z) -{ - c3vec3 v;// = { .x = x, .y = y, .z = z };// older gcc <4.6 doesn't like this - v.x = x; v.y = y; v.z = z; - return v; -} - -c3vec3 c3vec3_vec2f(const c3vec2 v, c3f d) -{ - c3vec3 n;// = { .x = v.x, .y = v.y, .z = d }; // older gcc <4.6 doesn't like this - n.x = v.x; n.y = v.y; n.z = d; - return n; -} - -c3vec3 c3vec3_vec2(const c3vec2 v) -{ - return c3vec3_vec2f(v, 1.0); -} - -c3vec3 c3vec3_vec4(const c3vec4 v) // it is up to caller to avoid divide-by-zero -{ - c3vec3 n; - n.n[VX] = v.n[VX] / v.n[VW]; - n.n[VY] = v.n[VY] / v.n[VW]; - n.n[VZ] = v.n[VZ] / v.n[VW]; - return n; -} - - -c3vec3 c3vec3_add(c3vec3 a, const c3vec3 v) -{ - a.n[VX] += v.n[VX]; - a.n[VY] += v.n[VY]; - a.n[VZ] += v.n[VZ]; - return a; -} - -c3vec3 c3vec3_sub(c3vec3 a, const c3vec3 v) -{ - a.n[VX] -= v.n[VX]; - a.n[VY] -= v.n[VY]; - a.n[VZ] -= v.n[VZ]; - return a; -} - -c3vec3 c3vec3_mulf(c3vec3 a, c3f d) -{ - a.n[VX] *= d; - a.n[VY] *= d; - a.n[VZ] *= d; - return a; -} - -c3vec3 c3vec3_divf(c3vec3 a, c3f d) -{ - c3f d_inv = 1.0f/d; - a.n[VX] *= d_inv; - a.n[VY] *= d_inv; - a.n[VZ] *= d_inv; - return a; -} - -// SPECIAL FUNCTIONS - -c3f c3vec3_length2(const c3vec3 a) -{ - return a.n[VX]*a.n[VX] + a.n[VY]*a.n[VY] + a.n[VZ]*a.n[VZ]; -} - -c3f c3vec3_length(const c3vec3 a) -{ - return (c3f) sqrt(c3vec3_length2(a)); -} - -c3vec3 c3vec3_normalize(const c3vec3 a) // it is up to caller to avoid divide-by-zero -{ - return c3vec3_divf(a, c3vec3_length(a)); -} - -c3vec3 c3vec3_homogenize(c3vec3 a) // it is up to caller to avoid divide-by-zero -{ - a.n[VX] /= a.n[VZ]; - a.n[VY] /= a.n[VZ]; - a.n[VZ] = 1.0; - return a; -} - -c3vec3 c3vec3_apply(c3vec3 a, V_FCT_PTR fct) -{ - a.n[VX] = fct(a.n[VX]); - a.n[VY] = fct(a.n[VY]); - a.n[VZ] = fct(a.n[VZ]); - return a; -} - -// FRIENDS - -c3vec3 c3vec3_minus(const c3vec3 a) -{ - return c3vec3f(-a.n[VX],-a.n[VY],-a.n[VZ]); -} - -#if later -c3vec3 operator*(const c3mat4 &a, const c3vec3 &v) -{ - return a*c3vec4(v); -} - -c3vec3 operator*(const c3vec3 &v, c3mat4 &a) -{ - return a.transpose()*v; -} -#endif - -c3f c3vec3_dot(const c3vec3 a, const c3vec3 b) -{ - return a.n[VX]*b.n[VX] + a.n[VY]*b.n[VY] + a.n[VZ]*b.n[VZ]; -} - -c3vec3 c3vec3_cross(const c3vec3 a, const c3vec3 b) -{ - return - c3vec3f(a.n[VY]*b.n[VZ] - a.n[VZ]*b.n[VY], - a.n[VZ]*b.n[VX] - a.n[VX]*b.n[VZ], - a.n[VX]*b.n[VY] - a.n[VY]*b.n[VX]); -} - -int c3vec3_equal(const c3vec3 a, const c3vec3 b) -{ - return (a.n[VX] == b.n[VX]) && (a.n[VY] == b.n[VY]) && (a.n[VZ] == b.n[VZ]); -} - - -c3vec3 c3vec3_min(const c3vec3 a, const c3vec3 b) -{ - return c3vec3f( - MIN(a.n[VX], b.n[VX]), - MIN(a.n[VY], b.n[VY]), - MIN(a.n[VZ], b.n[VZ])); -} - -c3vec3 c3vec3_max(const c3vec3 a, const c3vec3 b) -{ - return c3vec3f( - MAX(a.n[VX], b.n[VX]), - MAX(a.n[VY], b.n[VY]), - MAX(a.n[VZ], b.n[VZ])); -} - -c3vec3 c3vec3_prod(const c3vec3 a, const c3vec3 b) -{ - return c3vec3f(a.n[VX]*b.n[VX], a.n[VY]*b.n[VY], a.n[VZ]*b.n[VZ]); -} - -c3vec3 c3vec3_polar(const c3vec3 a) -{ - c3f l = c3vec3_length(a); - c3f phi = atan2(a.y, a.x); - c3f theta = acos(a.z / l); - return c3vec3f(phi, theta, l); -} - -/**************************************************************** - * * - * c3vec4 Member functions * - * * - ****************************************************************/ - -// CONSTRUCTORS - -c3vec4 c3vec4_zero() -{ - c3vec4 n ;//= { .x = 0, .y = 0, .z = 0, .w = 1.0 }; // older gcc <4.6 doesn't like this - n.x = n.y = n.z = 0; n.w = 1.0; - return n; -} - -c3vec4 c3vec4f(c3f x, c3f y, c3f z, c3f w) -{ - c3vec4 n;// = { .x = x, .y = y, .z = z, .w = w }; // older gcc <4.6 doesn't like this - n.x =x; n.y = y; n.z = z; n.w = w; - return n; -} - -c3vec4 c3vec4_vec3(const c3vec3 v) -{ - return c3vec4f(v.n[VX], v.n[VY], v.n[VZ], 1.0); -} - -c3vec4 c3vec4_vec3f(const c3vec3 v, c3f d) -{ - return c3vec4f(v.n[VX], v.n[VY], v.n[VZ], d); -} - -// ASSIGNMENT OPERATORS - -c3vec4 c3vec4_add(c3vec4 a, const c3vec4 v) -{ - a.n[VX] += v.n[VX]; - a.n[VY] += v.n[VY]; - a.n[VZ] += v.n[VZ]; - a.n[VW] += v.n[VW]; - return a; -} - -c3vec4 c3vec4_sub(c3vec4 a, const c3vec4 v) -{ - a.n[VX] -= v.n[VX]; - a.n[VY] -= v.n[VY]; - a.n[VZ] -= v.n[VZ]; - a.n[VW] -= v.n[VW]; - return a; -} - -c3vec4 c3vec4_mulf(c3vec4 a, c3f d) -{ - a.n[VX] *= d; - a.n[VY] *= d; - a.n[VZ] *= d; - a.n[VW] *= d; - return a; -} - -c3vec4 c3vec4_divf(c3vec4 a, c3f d) -{ - c3f d_inv = 1.0f/d; - a.n[VX] *= d_inv; - a.n[VY] *= d_inv; - a.n[VZ] *= d_inv; - a.n[VW] *= d_inv; - return a; -} - -// SPECIAL FUNCTIONS - -c3f c3vec4_length2(const c3vec4 a) -{ - return a.n[VX]*a.n[VX] + a.n[VY]*a.n[VY] + a.n[VZ]*a.n[VZ] + a.n[VW]*a.n[VW]; -} - -c3f c3vec4_length(const c3vec4 a) -{ - return (c3f) sqrt(c3vec4_length2(a)); -} - -c3vec4 c3vec4_normalize(c3vec4 a) // it is up to caller to avoid divide-by-zero -{ - return c3vec4_divf(a, c3vec4_length(a)); -} - -c3vec4 c3vec4_homogenize(c3vec4 a) // it is up to caller to avoid divide-by-zero -{ - a.n[VX] /= a.n[VW]; - a.n[VY] /= a.n[VW]; - a.n[VZ] /= a.n[VW]; - a.n[VW] = 1.0; - return a; -} - -c3vec4 c3vec4_apply(c3vec4 a, V_FCT_PTR fct) -{ - a.n[VX] = fct(a.n[VX]); - a.n[VY] = fct(a.n[VY]); - a.n[VZ] = fct(a.n[VZ]); - a.n[VW] = fct(a.n[VW]); - return a; -} - -c3vec4 c3mat4_mulv4(const c3mat4p a, const c3vec4 v) -{ - #define ROWCOL(i) \ - a->v[i].n[0]*v.n[VX] + \ - a->v[i].n[1]*v.n[VY] + \ - a->v[i].n[2]*v.n[VZ] + \ - a->v[i].n[3]*v.n[VW] - - return c3vec4f(ROWCOL(0), ROWCOL(1), ROWCOL(2), ROWCOL(3)); - - #undef ROWCOL -} - -c3vec4 c3vec4_mulm4(const c3vec4 v, const c3mat4p a) -{ - c3mat4 m = c3mat4_transpose(a); - return c3mat4_mulv4(&m, v); -} - -c3vec3 c3mat4_mulv3(const c3mat4p a, const c3vec3 v) -{ - return c3vec3_vec4(c3mat4_mulv4(a, c3vec4_vec3(v))); -} - -c3vec4 c3vec4_minus(const c3vec4 a) -{ - return c3vec4f(-a.n[VX],-a.n[VY],-a.n[VZ],-a.n[VW]); -} - -int c3vec4_equal(const c3vec4 a, const c3vec4 b) -{ - return - (a.n[VX] == b.n[VX]) && - (a.n[VY] == b.n[VY]) && - (a.n[VZ] == b.n[VZ]) && - (a.n[VW] == b.n[VW]); -} - -c3vec4 c3vec4_min(const c3vec4 a, const c3vec4 b) -{ - return c3vec4f( - MIN(a.n[VX], b.n[VX]), - MIN(a.n[VY], b.n[VY]), - MIN(a.n[VZ], b.n[VZ]), - MIN(a.n[VW], b.n[VW])); -} - -c3vec4 c3vec4_max(const c3vec4 a, const c3vec4 b) -{ - return c3vec4f( - MAX(a.n[VX], b.n[VX]), - MAX(a.n[VY], b.n[VY]), - MAX(a.n[VZ], b.n[VZ]), - MAX(a.n[VW], b.n[VW])); -} - -c3vec4 c3vec4_prod(const c3vec4 a, const c3vec4 b) -{ - return c3vec4f( - a.n[VX] * b.n[VX], - a.n[VY] * b.n[VY], - a.n[VZ] * b.n[VZ], - a.n[VW] * b.n[VW]); -} - -/**************************************************************** - * * - * c3mat3 member functions * - * * - ****************************************************************/ - -// CONSTRUCTORS - -c3mat3 c3mat3_identity() -{ - return identity2D(); -} - -c3mat3 c3mat3_vec3(const c3vec3 v0, const c3vec3 v1, const c3vec3 v2) -{ - c3mat3 m = { .v[0] = v0, .v[1] = v1, .v[2] = v2 }; - return m; -} - -c3mat3p c3mat3_add(const c3mat3p a, const c3mat3p m) -{ - a->v[0] = c3vec3_add(a->v[0], m->v[0]); - a->v[1] = c3vec3_add(a->v[1], m->v[1]); - a->v[2] = c3vec3_add(a->v[2], m->v[2]); - return a; -} - -c3mat3p c3mat3_sub(const c3mat3p a, const c3mat3p m) -{ - a->v[0] = c3vec3_sub(a->v[0], m->v[0]); - a->v[1] = c3vec3_sub(a->v[1], m->v[1]); - a->v[2] = c3vec3_sub(a->v[2], m->v[2]); - return a; -} - -c3mat3p c3mat3_mulf(const c3mat3p a, c3f d) -{ - a->v[0] = c3vec3_mulf(a->v[0], d); - a->v[1] = c3vec3_mulf(a->v[1], d); - a->v[2] = c3vec3_mulf(a->v[2], d); - return a; -} - -c3mat3p c3mat3_divf(const c3mat3p a, c3f d) -{ - a->v[0] = c3vec3_divf(a->v[0], d); - a->v[1] = c3vec3_divf(a->v[1], d); - a->v[2] = c3vec3_divf(a->v[2], d); - return a; -} - -// SPECIAL FUNCTIONS - -c3mat3 c3mat3_transpose(const c3mat3p a) -{ - return c3mat3_vec3( - c3vec3f(a->v[0].n[0], a->v[1].n[0], a->v[2].n[0]), - c3vec3f(a->v[0].n[1], a->v[1].n[1], a->v[2].n[1]), - c3vec3f(a->v[0].n[2], a->v[1].n[2], a->v[2].n[2])); -} - -c3mat3 c3mat3_inverse(const c3mat3p m) // Gauss-Jordan elimination with partial pivoting -{ - c3mat3 a = *m; // As a evolves from original mat into identity - c3mat3 b = c3mat3_identity(); // b evolves from identity into inverse(a) - int i, j, i1; - - // Loop over cols of a from left to right, eliminating above and below diag - for (j = 0; j < 3; j++) { // Find largest pivot in column j among rows j..2 - i1 = j; // Row with largest pivot candidate - for (i = j + 1; i < 3; i++) - if (fabs(a.v[i].n[j]) > fabs(a.v[i1].n[j])) - i1 = i; - - // Swap rows i1 and j in a and b to put pivot on diagonal - c3vec3 _s; - _s = a.v[i1]; a.v[i1] = a.v[j]; a.v[j] = _s; // swap(a.v[i1], a.v[j]); - _s = b.v[i1]; b.v[i1] = b.v[j]; b.v[j] = _s; //swap(b.v[i1], b.v[j]); - - // Scale row j to have a unit diagonal - if (a.v[j].n[j] == 0.) { - // VEC_ERROR("c3mat3::inverse: singular matrix; can't invert\n"); - return *m; - } - - b.v[j] = c3vec3_divf(b.v[j], a.v[j].n[j]); - a.v[j] = c3vec3_divf(a.v[j], a.v[j].n[j]); - - // Eliminate off-diagonal elems in col j of a, doing identical ops to b - for (i = 0; i < 3; i++) - if (i != j) { - b.v[i] = c3vec3_sub(b.v[i], c3vec3_mulf(b.v[j], a.v[i].n[j])); - a.v[i] = c3vec3_sub(a.v[i], c3vec3_mulf(a.v[j], a.v[i].n[j])); - } - } - - return b; -} - -c3mat3p c3mat3_apply(c3mat3p a, V_FCT_PTR fct) -{ - a->v[0] = c3vec3_apply(a->v[0], fct); - a->v[1] = c3vec3_apply(a->v[1], fct); - a->v[2] = c3vec3_apply(a->v[2], fct); - return a; -} - - -c3mat3 c3mat3_minus(const c3mat3p a) -{ - return c3mat3_vec3( - c3vec3_minus(a->v[0]), - c3vec3_minus(a->v[1]), - c3vec3_minus(a->v[2])); -} - -c3mat3 c3mat3_mul(const c3mat3p a, const c3mat3p b) -{ - #define ROWCOL(i, j) \ - a->v[i].n[0]*b->v[0].n[j] + a->v[i].n[1]*b->v[1].n[j] + a->v[i].n[2]*b->v[2].n[j] - - return c3mat3_vec3( - c3vec3f(ROWCOL(0,0), ROWCOL(0,1), ROWCOL(0,2)), - c3vec3f(ROWCOL(1,0), ROWCOL(1,1), ROWCOL(1,2)), - c3vec3f(ROWCOL(2,0), ROWCOL(2,1), ROWCOL(2,2))); - - #undef ROWCOL -} - -int c3mat3_equal(const c3mat3p a, const c3mat3p b) -{ - return - c3vec3_equal(a->v[0], b->v[0]) && - c3vec3_equal(a->v[1], b->v[1]) && - c3vec3_equal(a->v[2], b->v[2]); -} - -/**************************************************************** - * * - * c3mat4 member functions * - * * - ****************************************************************/ - -// CONSTRUCTORS - -c3mat4 c3mat4_identity() -{ - return identity3D(); -} - -c3mat4 c3mat4_vec4(const c3vec4 v0, const c3vec4 v1, const c3vec4 v2, const c3vec4 v3) -{ - c3mat4 m = { .v[0] = v0, .v[1] = v1, .v[2] = v2, .v[3] = v3 }; - return m; -} - -c3mat4 c3mat4f( - c3f a00, c3f a01, c3f a02, c3f a03, - c3f a10, c3f a11, c3f a12, c3f a13, - c3f a20, c3f a21, c3f a22, c3f a23, - c3f a30, c3f a31, c3f a32, c3f a33 ) -{ - c3mat4 m; - m.v[0] = c3vec4f(a00, a01, a01, a03); - m.v[1] = c3vec4f(a10, a11, a11, a13); - m.v[2] = c3vec4f(a20, a21, a21, a23); - m.v[3] = c3vec4f(a30, a31, a21, a33); - return m; -} - -c3mat4p c3mat4p_add(c3mat4p a, const c3mat4p m) -{ - a->v[0] = c3vec4_add(a->v[0], m->v[0]); - a->v[1] = c3vec4_add(a->v[1], m->v[1]); - a->v[2] = c3vec4_add(a->v[2], m->v[2]); - a->v[3] = c3vec4_add(a->v[3], m->v[3]); - return a; -} - -c3mat4p c3mat4p_sub(c3mat4p a, const c3mat4p m) -{ - a->v[0] = c3vec4_sub(a->v[0], m->v[0]); - a->v[1] = c3vec4_sub(a->v[1], m->v[1]); - a->v[2] = c3vec4_sub(a->v[2], m->v[2]); - a->v[3] = c3vec4_sub(a->v[3], m->v[3]); - return a; -} - -c3mat4p c3mat4p_mulf(c3mat4p a, c3f d) -{ - a->v[0] = c3vec4_mulf(a->v[0], d); - a->v[1] = c3vec4_mulf(a->v[1], d); - a->v[2] = c3vec4_mulf(a->v[2], d); - a->v[3] = c3vec4_mulf(a->v[3], d); - return a; -} - -c3mat4p c3mat4p_divf(c3mat4p a, c3f d) -{ - a->v[0] = c3vec4_divf(a->v[0], d); - a->v[1] = c3vec4_divf(a->v[1], d); - a->v[2] = c3vec4_divf(a->v[2], d); - a->v[3] = c3vec4_divf(a->v[3], d); - return a; -} - -// SPECIAL FUNCTIONS; - -c3mat4 c3mat4_transpose(const c3mat4p a) -{ - return c3mat4_vec4( - c3vec4f(a->v[0].n[0], a->v[1].n[0], a->v[2].n[0], a->v[3].n[0]), - c3vec4f(a->v[0].n[1], a->v[1].n[1], a->v[2].n[1], a->v[3].n[1]), - c3vec4f(a->v[0].n[2], a->v[1].n[2], a->v[2].n[2], a->v[3].n[2]), - c3vec4f(a->v[0].n[3], a->v[1].n[3], a->v[2].n[3], a->v[3].n[3])); -} - -c3mat4 c3mat4_inverse(const c3mat4p m) // Gauss-Jordan elimination with partial pivoting -{ - c3mat4 a = *m; // As a evolves from original mat into identity - c3mat4 b = identity3D(); // b evolves from identity into inverse(a) - int i, j, i1; - - // Loop over cols of a from left to right, eliminating above and below diag - for (j = 0; j < 4; j++) { // Find largest pivot in column j among rows j..3 - i1 = j; // Row with largest pivot candidate - for (i = j + 1; i < 4; i++) - if (fabs(a.v[i].n[j]) > fabs(a.v[i1].n[j])) - i1 = i; - - // Swap rows i1 and j in a and b to put pivot on diagonal - c3vec4 _s; - _s = a.v[i1]; a.v[i1] = a.v[j]; a.v[j] = _s; // swap(a.v[i1], a.v[j]); - _s = b.v[i1]; b.v[i1] = b.v[j]; b.v[j] = _s; // swap(b.v[i1], b.v[j]); - - // Scale row j to have a unit diagonal - if (a.v[j].n[j] == 0.) { - // VEC_ERROR("c3mat4::inverse: singular matrix; can't invert\n"); - return a; - } - b.v[j] = c3vec4_divf(b.v[j], a.v[j].n[j]); - a.v[j] = c3vec4_divf(a.v[j], a.v[j].n[j]); - - // Eliminate off-diagonal elems in col j of a, doing identical ops to b - for (i = 0; i < 4; i++) - if (i != j) { - b.v[i] = c3vec4_sub(b.v[i], c3vec4_mulf(b.v[j], a.v[i].n[j])); - a.v[i] = c3vec4_sub(a.v[i], c3vec4_mulf(a.v[j], a.v[i].n[j])); - } - } - - return b; -} - -c3mat4p c3mat4p_apply(c3mat4p a, V_FCT_PTR fct) -{ - a->v[0] = c3vec4_apply(a->v[0], fct); - a->v[1] = c3vec4_apply(a->v[1], fct); - a->v[2] = c3vec4_apply(a->v[2], fct); - a->v[3] = c3vec4_apply(a->v[3], fct); - return a; -} - -c3mat4p c3mat4p_swap_rows(c3mat4p a, int i, int j) -{ - c3vec4 t; - - t = a->v[i]; - a->v[i] = a->v[j]; - a->v[j] = t; - return a; -} - -c3mat4p c3mat4p_swap_cols(c3mat4p a, int i, int j) -{ - c3f t; - - for (int k = 0; k < 4; k++) { - t = a->v[k].n[i]; - a->v[k].n[i] = a->v[k].n[j]; - a->v[k].n[j] = t; - } - return a; -} - - -// FRIENDS - -c3mat4 c3mat4_minus(const c3mat4p a) -{ - return c3mat4_vec4( - c3vec4_minus(a->v[0]), - c3vec4_minus(a->v[1]), - c3vec4_minus(a->v[2]), - c3vec4_minus(a->v[3])); -} - -c3mat4 c3mat4_add(const c3mat4p a, const c3mat4p b) -{ - return c3mat4_vec4( - c3vec4_add(a->v[0], b->v[0]), - c3vec4_add(a->v[1], b->v[1]), - c3vec4_add(a->v[2], b->v[2]), - c3vec4_add(a->v[3], b->v[3])); -} - -c3mat4 c3mat4_sub(const c3mat4p a, const c3mat4p b) -{ - return c3mat4_vec4( - c3vec4_sub(a->v[0], b->v[0]), - c3vec4_sub(a->v[1], b->v[1]), - c3vec4_sub(a->v[2], b->v[2]), - c3vec4_sub(a->v[3], b->v[3])); -} - -c3mat4 c3mat4_mul(const c3mat4p a, const c3mat4p b) -{ - #define ROWCOL(i, j) \ - a->v[i].n[0]*b->v[0].n[j] + \ - a->v[i].n[1]*b->v[1].n[j] + \ - a->v[i].n[2]*b->v[2].n[j] + \ - a->v[i].n[3]*b->v[3].n[j] - - return c3mat4_vec4( - c3vec4f(ROWCOL(0,0), ROWCOL(0,1), ROWCOL(0,2), ROWCOL(0,3)), - c3vec4f(ROWCOL(1,0), ROWCOL(1,1), ROWCOL(1,2), ROWCOL(1,3)), - c3vec4f(ROWCOL(2,0), ROWCOL(2,1), ROWCOL(2,2), ROWCOL(2,3)), - c3vec4f(ROWCOL(3,0), ROWCOL(3,1), ROWCOL(3,2), ROWCOL(3,3)) - ); - - #undef ROWCOL -} - -c3mat4 c3mat4_mulf(const c3mat4p a, c3f d) -{ - c3mat4 r = *a; - return *c3mat4p_mulf(&r, d); -} - -c3mat4 c3mat4_divf(const c3mat4p a, c3f d) -{ - c3mat4 r = *a; - return *c3mat4p_divf(&r, d); -} - -int c3mat4_equal(const c3mat4p a, const c3mat4p b) -{ - return !memcmp(a->n, b->n, sizeof(a->n)); -#if 0 - return - c3vec4_equal(a->v[0], b->v[0]) && - c3vec4_equal(a->v[1], b->v[1]) && - c3vec4_equal(a->v[2], b->v[2]) && - c3vec4_equal(a->v[3], b->v[3]); -#endif -} - -/**************************************************************** - * * - * 2D functions and 3D functions * - * * - ****************************************************************/ - -c3mat3 identity2D() -{ - return c3mat3_vec3( - c3vec3f(1.0, 0.0, 0.0), - c3vec3f(0.0, 1.0, 0.0), - c3vec3f(0.0, 0.0, 1.0)); -} - -c3mat3 translation2D(const c3vec2 v) -{ - return c3mat3_vec3( - c3vec3f(1.0, 0.0, v.n[VX]), - c3vec3f(0.0, 1.0, v.n[VY]), - c3vec3f(0.0, 0.0, 1.0)); -} - -c3mat3 rotation2D(const c3vec2 Center, c3f angleDeg) -{ - c3f angleRad = (c3f) (angleDeg * PI_OVER_180); - c3f c = (c3f) cos(angleRad); - c3f s = (c3f) sin(angleRad); - - return c3mat3_vec3( - c3vec3f(c, -s, Center.n[VX] * (1.0f-c) + Center.n[VY] * s), - c3vec3f(s, c, Center.n[VY] * (1.0f-c) - Center.n[VX] * s), - c3vec3f(0.0, 0.0, 1.0)); -} - -c3mat3 scaling2D(const c3vec2 scaleVector) -{ - return c3mat3_vec3( - c3vec3f(scaleVector.n[VX], 0.0, 0.0), - c3vec3f(0.0, scaleVector.n[VY], 0.0), - c3vec3f(0.0, 0.0, 1.0)); -} - -c3mat4 -identity3D() -{ - return c3mat4_vec4( - c3vec4f(1.0, 0.0, 0.0, 0.0), - c3vec4f(0.0, 1.0, 0.0, 0.0), - c3vec4f(0.0, 0.0, 1.0, 0.0), - c3vec4f(0.0, 0.0, 0.0, 1.0)); -} - -c3mat4 translation3D(const c3vec3 v) -{ - return c3mat4_vec4( - c3vec4f(1.0, 0.0, 0.0, 0.0), - c3vec4f(0.0, 1.0, 0.0, 0.0), - c3vec4f(0.0, 0.0, 1.0, 0.0), - c3vec4f(v.n[VX], v.n[VY], v.n[VZ], 1.0)); -} - -c3mat4 rotation3D(const c3vec3 Axis, c3f angleDeg) -{ - c3f angleRad = (c3f) (angleDeg * PI_OVER_180); - c3f c = (c3f) cos(angleRad); - c3f s = (c3f) sin(angleRad); - c3f t = 1.0f - c; - - c3vec3 axis = c3vec3_normalize(Axis); - - return c3mat4_vec4( - c3vec4f( - t * axis.n[VX] * axis.n[VX] + c, - t * axis.n[VX] * axis.n[VY] - s * axis.n[VZ], - t * axis.n[VX] * axis.n[VZ] + s * axis.n[VY], - 0.0), - c3vec4f( - t * axis.n[VX] * axis.n[VY] + s * axis.n[VZ], - t * axis.n[VY] * axis.n[VY] + c, - t * axis.n[VY] * axis.n[VZ] - s * axis.n[VX], - 0.0), - c3vec4f( - t * axis.n[VX] * axis.n[VZ] - s * axis.n[VY], - t * axis.n[VY] * axis.n[VZ] + s * axis.n[VX], - t * axis.n[VZ] * axis.n[VZ] + c, - 0.0), - c3vec4f(0.0, 0.0, 0.0, 1.0)); -} - -c3mat4 rotation3Drad(const c3vec3 Axis, c3f angleRad) -{ - c3f c = (c3f) cos(angleRad); - c3f s = (c3f) sin(angleRad); - c3f t = 1.0f - c; - - c3vec3 axis = c3vec3_normalize(Axis); - - return c3mat4_vec4( - c3vec4f(t * axis.n[VX] * axis.n[VX] + c, - t * axis.n[VX] * axis.n[VY] - s * axis.n[VZ], - t * axis.n[VX] * axis.n[VZ] + s * axis.n[VY], - 0.0), - c3vec4f(t * axis.n[VX] * axis.n[VY] + s * axis.n[VZ], - t * axis.n[VY] * axis.n[VY] + c, - t * axis.n[VY] * axis.n[VZ] - s * axis.n[VX], - 0.0), - c3vec4f(t * axis.n[VX] * axis.n[VZ] - s * axis.n[VY], - t * axis.n[VY] * axis.n[VZ] + s * axis.n[VX], - t * axis.n[VZ] * axis.n[VZ] + c, - 0.0), - c3vec4f(0.0, 0.0, 0.0, 1.0)); -} - -c3mat4 scaling3D(const c3vec3 scaleVector) -{ - return c3mat4_vec4( - c3vec4f(scaleVector.n[VX], 0.0, 0.0, 0.0), - c3vec4f(0.0, scaleVector.n[VY], 0.0, 0.0), - c3vec4f(0.0, 0.0, scaleVector.n[VZ], 0.0), - c3vec4f(0.0, 0.0, 0.0, 1.0)); -} - -c3mat4 frustum3D( - c3f left, c3f right, c3f bottom, c3f top, - c3f znear, c3f zfar) -{ - c3f temp = 2.0 * znear, - temp2 = right - left, - temp3 = top - bottom, - temp4 = zfar - znear; - return c3mat4_vec4( - c3vec4f(temp / temp2, 0.0, 0.0, 0.0), - c3vec4f(0.0, temp / temp3, 0.0, 0.0), - c3vec4f((right + left) / temp2, (top + bottom) / temp3, (-zfar - znear) / temp4, -1.0), - c3vec4f(-1.0, 0.0, (-temp * zfar) / temp4, 0.0)); -} - -c3mat4 perspective3D(c3f fov, c3f aspect, c3f zNear, c3f zFar) -{ - c3f ymax = zNear * tan(fov * PI_OVER_360); - c3f ymin = -ymax; - c3f xmin = ymin * aspect; - c3f xmax = ymax * aspect; - - return frustum3D(xmin, xmax, ymin, ymax, zNear, zFar); -} - -c3mat4 ortho3D( - c3f left, c3f right, c3f bottom, c3f top, - c3f near, c3f far) -{ - c3f a = 2.0f / (right - left); - c3f b = 2.0f / (top - bottom); - c3f c = -2.0f / (far - near); - - c3f tx = - (right + left)/(right - left); - c3f ty = - (top + bottom)/(top - bottom); - c3f tz = - (far + near)/(far - near); - - float ortho[16] = { - a, 0, 0, 0, - 0, b, 0, 0, - 0, 0, c, 0, - tx, ty, tz, 1 - }; - return *((c3mat4p)ortho); -} - -/* - * Same as previous, but this one is screen aligned, with 0,0 being top,left - * instead of bottom,left - */ -c3mat4 screen_ortho3D( - c3f left, c3f right, c3f bottom, c3f top, - c3f near, c3f far) -{ - c3f a = 2.0f / (right - left); - c3f b = 2.0f / (top - bottom); - c3f c = -2.0f / (far - near); - - c3f tx = - (right + left)/(right - left); - c3f ty = - (top + bottom)/(top - bottom); - c3f tz = - (far + near)/(far - near); - - float ortho[16] = { - a, 0, 0, 0, - 0, -b, 0, 0, - 0, 0, c, 0, - tx, -ty, tz, 1 - }; - return *((c3mat4p)ortho); -} diff --git a/examples/shared/libc3/src/c3algebra.h b/examples/shared/libc3/src/c3algebra.h deleted file mode 100644 index 9118031..0000000 --- a/examples/shared/libc3/src/c3algebra.h +++ /dev/null @@ -1,226 +0,0 @@ -/* - c3algebra.h - - Copyright 2008-2012 Michel Pollet - - Derivative and inspiration from original C++: - Paul Rademacher & Jean-Francois DOUEG, - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3ALGEBRA_H___ -#define __C3ALGEBRA_H___ - - -#ifndef M_PI -#define M_PI 3.141592654 -#endif -#define PI_OVER_180 0.017453292519943295769236907684886 -#define PI_OVER_360 0.0087266462599716478846184538424431 - -enum {VX, VY, VZ, VW}; // axes -enum {PA, PB, PC, PD}; // planes -enum {RED, GREEN, BLUE, ALPHA}; // colors -enum {KA, KD, KS, ES}; // phong coefficients - -typedef float c3f; -typedef c3f (*V_FCT_PTR)(c3f); - -typedef union c3vec2 { - struct { c3f x,y; }; - c3f n[2]; -} c3vec2; - -typedef union c3vec3 { - struct { c3f x,y,z; }; - c3f n[3]; -} c3vec3; - -typedef union c3vec4 { - struct { c3f x,y,z,w; }; - c3f n[4]; -} c3vec4, * c3vec4p; - -typedef union c3mat3 { - c3vec3 v[3]; - c3f n[3*3]; -} c3mat3, * c3mat3p; - -typedef union c3mat4 { - c3vec4 v[4]; - c3f n[4*4]; -} c3mat4, * c3mat4p; - -/* - * c3vec2 related - */ - -c3vec2 c3vec2_zero(); -c3vec2 c3vec2f(c3f x, c3f y); - -c3vec2 c3vec2_add(c3vec2 a, const c3vec2 v); -c3vec2 c3vec2_sub(c3vec2 a, const c3vec2 v); -c3vec2 c3vec2_mulf(c3vec2 a, c3f d); -c3vec2 c3vec2_divf(c3vec2 a, c3f d); - -c3f c3vec2_length2(const c3vec2 a); -c3f c3vec2_length(const c3vec2 a); -c3vec2 c3vec2_normalize(const c3vec2 a); // it is up to caller to avoid divide-by-zero -c3vec2 c3vec2_apply(c3vec2 a, V_FCT_PTR fct); -c3vec2 c3vec2_minus(const c3vec2 a); -c3f c3vec2_dot(const c3vec2 a, const c3vec2 b); -c3vec2 c3vec2_min(const c3vec2 a, const c3vec2 b); -c3vec2 c3vec2_max(const c3vec2 a, const c3vec2 b); -c3vec2 c3vec2_prod(const c3vec2 a, const c3vec2 b); - -/* - * c3vec3 related - */ - -c3vec3 c3vec3_zero(); -c3vec3 c3vec3f(c3f x, c3f y, c3f z); -c3vec3 c3vec3_vec2f(const c3vec2 v, c3f d); -c3vec3 c3vec3_vec2(const c3vec2 v); -c3vec3 c3vec3_vec4(const c3vec4 v); // it is up to caller to avoid divide-by-zero - -c3vec3 c3vec3_add(const c3vec3 a, const c3vec3 v); -c3vec3 c3vec3_sub(const c3vec3 a, const c3vec3 v); -c3vec3 c3vec3_mulf(const c3vec3 a, c3f d); -c3vec3 c3vec3_divf(const c3vec3 a, c3f d); - -c3f c3vec3_length2(const c3vec3 a); -c3f c3vec3_length(const c3vec3 a); -c3vec3 c3vec3_normalize(const c3vec3 a); // it is up to caller to avoid divide-by-zero -c3vec3 c3vec3_homogenize(c3vec3 a); // it is up to caller to avoid divide-by-zero -c3vec3 c3vec3_apply(c3vec3 a, V_FCT_PTR fct); -c3vec3 c3vec3_minus(const c3vec3 a); -c3f c3vec3_dot(const c3vec3 a, const c3vec3 b); -int c3vec3_equal(const c3vec3 a, const c3vec3 b); -c3vec3 c3vec3_min(const c3vec3 a, const c3vec3 b); -c3vec3 c3vec3_max(const c3vec3 a, const c3vec3 b); -c3vec3 c3vec3_prod(const c3vec3 a, const c3vec3 b); - -c3vec3 c3vec3_cross(const c3vec3 a, const c3vec3 b); -c3vec3 c3vec2_cross(const c3vec2 a, const c3vec2 b); -c3vec3 c3vec3_polar(const c3vec3 a); // returns phi, theta, length - -/* - * c3vec4 related - */ - -c3vec4 c3vec4_zero(); -c3vec4 c3vec4f(c3f x, c3f y, c3f z, c3f w); -c3vec4 c3vec4_vec3(const c3vec3 v); -c3vec4 c3vec4_vec3f(const c3vec3 v, c3f d); - -c3vec4 c3vec4_add(c3vec4 a, const c3vec4 v); -c3vec4 c3vec4_sub(c3vec4 a, const c3vec4 v); -c3vec4 c3vec4_mulf(c3vec4 a, c3f d); -c3vec4 c3vec4_divf(c3vec4 a, c3f d); - -c3f c3vec4_length2(const c3vec4 a); -c3f c3vec4_length(const c3vec4 a); -c3vec4 c3vec4_normalize(c3vec4 a); // it is up to caller to avoid divide-by-zero -c3vec4 c3vec4_homogenize(c3vec4 a); // it is up to caller to avoid divide-by-zero -c3vec4 c3vec4_apply(c3vec4 a, V_FCT_PTR fct); -c3vec4 c3vec4_minus(const c3vec4 a); -int c3vec4_equal(const c3vec4 a, const c3vec4 b); -c3vec4 c3vec4_min(const c3vec4 a, const c3vec4 b); -c3vec4 c3vec4_max(const c3vec4 a, const c3vec4 b); -c3vec4 c3vec4_prod(const c3vec4 a, const c3vec4 b); - -/* - * c3mat3 related - */ - -c3mat3 c3mat3_identity(); -c3mat3 c3mat3_vec3(const c3vec3 v0, const c3vec3 v1, const c3vec3 v2); -c3mat3p c3mat3_add(const c3mat3p a, const c3mat3p m); -c3mat3p c3mat3_sub(const c3mat3p a, const c3mat3p m); -c3mat3p c3mat3_mulf(const c3mat3p a, c3f d); -c3mat3p c3mat3_divf(const c3mat3p a, c3f d); - -c3mat3 c3mat3_transpose(const c3mat3p a); -c3mat3 c3mat3_inverse(const c3mat3p m); // Gauss-Jordan elimination with partial pivoting -c3mat3p c3mat3_apply(c3mat3p a, V_FCT_PTR fct); -c3mat3 c3mat3_minus(const c3mat3p a); - -c3mat3 c3mat3_mul(const c3mat3p a, const c3mat3p b); -int c3mat3_equal(const c3mat3p a, const c3mat3p b); - -c3vec2 c3mat3_mulv2(const c3mat3p a, const c3vec2 v); -c3vec3 c3mat3_mulv3(const c3mat3p a, const c3vec3 v); -c3vec2 c3vec2_mulm3(const c3vec2 v, const c3mat3p a); -c3vec3 c3vec3_mulm3(const c3vec3 v, const c3mat3p a); - -c3mat3 identity2D(); -c3mat3 translation2D(const c3vec2 v); -c3mat3 rotation2D(const c3vec2 Center, c3f angleDeg); -c3mat3 scaling2D(const c3vec2 scaleVector); - -/* - * c3mat4 related - */ - -c3mat4 c3mat4_identity(); -c3mat4 c3mat4_vec4(const c3vec4 v0, const c3vec4 v1, const c3vec4 v2, const c3vec4 v3); -c3mat4 c3mat4f( - c3f a00, c3f a01, c3f a02, c3f a03, - c3f a10, c3f a11, c3f a12, c3f a13, - c3f a20, c3f a21, c3f a22, c3f a23, - c3f a30, c3f a31, c3f a32, c3f a33 ); - -c3mat4 c3mat4_minus(const c3mat4p a); -c3mat4p c3mat4p_add(c3mat4p a, const c3mat4p m); -c3mat4 c3mat4_add(const c3mat4p a, const c3mat4p b); -c3mat4p c3mat4p_sub(c3mat4p a, const c3mat4p m); -c3mat4 c3mat4_sub(const c3mat4p a, const c3mat4p b); -c3mat4p c3mat4p_mulf(c3mat4p a, c3f d); -c3mat4 c3mat4_mulf(const c3mat4p a, c3f d); -c3mat4 c3mat4_mul(const c3mat4p a, const c3mat4p b); -c3mat4p c3mat4p_divf(c3mat4p a, c3f d); -c3mat4 c3mat4_divf(const c3mat4p a, c3f d); - -c3mat4 c3mat4_transpose(const c3mat4p a); -c3mat4 c3mat4_inverse(const c3mat4p m); // Gauss-Jordan elimination with partial pivoting -c3mat4p c3mat4p_apply(c3mat4p a, V_FCT_PTR fct); -c3mat4p c3mat4p_swap_rows(c3mat4p a, int i, int j); -c3mat4p c3mat4p_swap_cols(c3mat4p a, int i, int j); -int c3mat4_equal(const c3mat4p a, const c3mat4p b); - -c3vec4 c3vec4_mulm4(const c3vec4 v, const c3mat4p a); -c3vec4 c3mat4_mulv4(const c3mat4p a, const c3vec4 v); -c3vec3 c3mat4_mulv3(const c3mat4p a, const c3vec3 v); - -c3mat4 identity3D(); -c3mat4 translation3D(const c3vec3 v); -c3mat4 rotation3D(const c3vec3 Axis, c3f angleDeg); -c3mat4 rotation3Drad(const c3vec3 Axis, c3f angleRad); -c3mat4 scaling3D(const c3vec3 scaleVector); -c3mat4 frustum3D( - c3f left, c3f right, c3f bottom, c3f top, - c3f znear, c3f zfar); -c3mat4 perspective3D(c3f fov, c3f aspect, c3f znear, c3f zfar); -c3mat4 ortho3D( - c3f left, c3f right, c3f bottom, c3f top, - c3f near, c3f far); -c3mat4 screen_ortho3D( - c3f left, c3f right, c3f bottom, c3f top, - c3f near, c3f far); - -#endif /* __C3ALGEBRA_H___ */ diff --git a/examples/shared/libc3/src/c3arcball.c b/examples/shared/libc3/src/c3arcball.c deleted file mode 100644 index 35fe442..0000000 --- a/examples/shared/libc3/src/c3arcball.c +++ /dev/null @@ -1,254 +0,0 @@ -/* - c3arcball.c - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - -#include -#include "c3arcball.h" - - -/**************************************** c3arcball_init_mat4() ****/ -/* Takes as argument a c3mat4 to use instead of the internal rot */ - -void -c3arcball_init_mat4( - c3arcballp a, - c3mat4p mtx ) -{ - c3arcball_init(a); - a->rot_ptr = mtx; -} - - -/**************************************** c3arcball_init_center() ****/ -/* A constructor that accepts the screen center and arcball radius*/ - -void -c3arcball_init_center( - c3arcballp a, - const c3vec2 center, - c3f radius ) -{ - c3arcball_init(a); - c3arcball_set_params(a, center, radius); -} - - -/************************************** c3arcball_set_params() ****/ - -void -c3arcball_set_params( - c3arcballp a, - const c3vec2 center, - c3f radius) -{ - a->center = center; - a->radius = radius; -} - -/*************************************** c3arcball_init() **********/ - -void -c3arcball_init( - c3arcballp a ) -{ - a->center = c3vec2f( 0.0, 0.0 ); - a->radius = 1.0; - a->q_now = c3quat_identity(); - a->rot_ptr = &a->rot; - a->rot = identity3D(); - a->q_increment = c3quat_identity(); - a->rot_increment = identity3D(); - a->is_mouse_down = false; - a->is_spinning = false; - a->damp_factor = 0.0; - a->zero_increment = true; -} - -/*********************************** c3arcball_mouse_to_sphere() ****/ - -c3vec3 -c3arcball_mouse_to_sphere( - c3arcballp a, - const c3vec2 p) -{ - c3f mag; - c3vec2 v2 = c3vec2_divf(c3vec2_sub(p, a->center), a->radius); - c3vec3 v3 = c3vec3f( v2.n[0], v2.n[1], 0.0 ); - - mag = c3vec2_dot(v2, v2); - - if ( mag > 1.0 ) - v3 = c3vec3_normalize(v3); - else - v3.n[VZ] = (c3f) sqrt( 1.0 - mag ); - - /* Now we add constraints - X takes precedence over Y */ - if ( a->constraint_x ) { - v3 = c3arcball_constrain_vector( v3, c3vec3f( 1.0, 0.0, 0.0 )); - } else if ( a->constraint_y ) { - v3 = c3arcball_constrain_vector( v3, c3vec3f( 0.0, 1.0, 0.0 )); - } - - return v3; -} - - -/************************************ c3arcball_constrain_vector() ****/ - -c3vec3 -c3arcball_constrain_vector( - const c3vec3 vector, - const c3vec3 axis) -{ -// return (vector - (vector * axis) * axis).normalize(); - return vector; -} - -/************************************ c3arcball_mouse_down() **********/ - -void -c3arcball_mouse_down( - c3arcballp a, - int x, - int y) -{ - a->down_pt = c3vec2f( (c3f)x, (c3f) y ); - a->is_mouse_down = true; - - a->q_increment = c3quat_identity(); - a->rot_increment = identity3D(); - a->zero_increment = true; -} - - -/************************************ c3arcball_mouse_up() **********/ - -void -c3arcball_mouse_up( - c3arcballp a) -{ - a->q_now = c3quat_mul(a->q_drag, a->q_now); - a->is_mouse_down = false; -} - - -/********************************** c3arcball_mouse_motion() **********/ - -void -c3arcball_mouse_motion( - c3arcballp a, - int x, - int y, - int shift, - int ctrl, - int alt) -{ - /* Set the X constraint if CONTROL key is pressed, Y if ALT key */ - c3arcball_set_constraints(a, ctrl != 0, alt != 0 ); - - c3vec2 new_pt = c3vec2f( (c3f)x, (c3f) y ); - c3vec3 v0 = c3arcball_mouse_to_sphere(a, a->down_pt ); - c3vec3 v1 = c3arcball_mouse_to_sphere(a, new_pt ); - - c3vec3 cross = c3vec3_cross(v0, v1); - - a->q_drag = c3quat_vec3(cross, c3vec3_dot(v0, v1)); - - // *rot_ptr = (q_drag * q_now).to_mat4(); - c3mat4 temp = c3quat_to_mat4(a->q_drag); - *a->rot_ptr = c3mat4_mul(a->rot_ptr, &temp); - - a->down_pt = new_pt; - - /* We keep a copy of the current incremental rotation (= q_drag) */ - a->q_increment = a->q_drag; - a->rot_increment = c3quat_to_mat4(a->q_increment); - - c3arcball_set_constraints(a, false, false); - - if (a->q_increment.s < .999999) { - a->is_spinning = true; - a->zero_increment = false; - } else { - a->is_spinning = false; - a->zero_increment = true; - } -} - - -/********************************** c3arcball_mouse_motion() **********/ -#if 0 -void -c3arcball_mouse_motion( - c3arcballp a, - int x, - int y) -{ - mouse_motion(x, y, 0, 0, 0); -} -#endif - -/***************************** c3arcball_set_constraints() **********/ - -void -c3arcball_set_constraints( - c3arcballp a, - bool _constraint_x, - bool _constraint_y) -{ - a->constraint_x = _constraint_x; - a->constraint_y = _constraint_y; -} - -/***************************** c3arcball_idle() *********************/ - -void -c3arcball_idle( - c3arcballp a) -{ - if (a->is_mouse_down) { - a->is_spinning = false; - a->zero_increment = true; - } - - if (a->damp_factor < 1.0f) - c3quat_scale_angle(&a->q_increment, 1.0f - a->damp_factor); - - a->rot_increment = c3quat_to_mat4(a->q_increment); - - if (a->q_increment.s >= .999999f) { - a->is_spinning = false; - a->zero_increment = true; - } -} - - -/************************ c3arcball_set_damping() *********************/ - -void -c3arcball_set_damping( - c3arcballp a, - c3f d) -{ - a->damp_factor = d; -} - - - diff --git a/examples/shared/libc3/src/c3arcball.h b/examples/shared/libc3/src/c3arcball.h deleted file mode 100644 index d7309f1..0000000 --- a/examples/shared/libc3/src/c3arcball.h +++ /dev/null @@ -1,125 +0,0 @@ -/* - c3arcball.h - - Copyright 2008-2012 Michel Pollet - Copyright (c) 1998 Paul Rademacher - Feb 1998, Paul Rademacher (rademach@cs.unc.edu) - Oct 2003, Nigel Stewart - GLUI Code Cleaning - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - -/* - Arcball, as described by Ken - Shoemake in Graphics Gems IV. - This class takes as input mouse events (mouse down, mouse drag, - mouse up), and creates the appropriate quaternions and 4x4 matrices - to represent the rotation given by the mouse. - - This class is used as follows: - - initialize [either in the constructor or with set_params()], the - center position (x,y) of the arcball on the screen, and the radius - - on mouse down, call mouse_down(x,y) with the mouse position - - as the mouse is dragged, repeatedly call mouse_motion() with the - current x and y positions. One can optionally pass in the current - state of the SHIFT, ALT, and CONTROL keys (passing zero if keys - are not pressed, non-zero otherwise), which constrains - the rotation to certain axes (X for CONTROL, Y for ALT). - - when the mouse button is released, call mouse_up() - - Axis constraints can also be explicitly set with the - set_constraints() function. - - The current rotation is stored in the 4x4 float matrix 'rot'. - It is also stored in the quaternion 'q_now'. - */ - -#ifndef __C3ARCBALL_H___ -#define __C3ARCBALL_H___ - -#include "c3quaternion.h" - -typedef struct c3arcball { - int is_mouse_down : 1, /* true for down, false for up */ - is_spinning : 1, - constraint_x : 1, - constraint_y : 1, - zero_increment : 1; - c3quat q_now, q_down, q_drag, q_increment; - c3vec2 down_pt; - c3mat4 rot, rot_increment; - c3mat4 *rot_ptr; - - c3vec2 center; - c3f radius, damp_factor; -} c3arcball, *c3arcballp; - -void -c3arcball_init( - c3arcballp a ); -void -c3arcball_init_mat4( - c3arcballp a, - c3mat4p mtx ); -void -c3arcball_init_center( - c3arcballp a, - const c3vec2 center, - c3f radius ); -void -c3arcball_set_params( - c3arcballp a, - const c3vec2 center, - c3f radius); -c3vec3 -c3arcball_mouse_to_sphere( - c3arcballp a, - const c3vec2 p); -c3vec3 -c3arcball_constrain_vector( - const c3vec3 vector, - const c3vec3 axis); -void -c3arcball_mouse_down( - c3arcballp a, - int x, - int y); -void -c3arcball_mouse_up( - c3arcballp a); - -void -c3arcball_mouse_motion( - c3arcballp a, - int x, - int y, - int shift, - int ctrl, - int alt); -void -c3arcball_set_constraints( - c3arcballp a, - bool _constraint_x, - bool _constraint_y); -void -c3arcball_idle( - c3arcballp a); -void -c3arcball_set_damping( - c3arcballp a, - c3f d); - -#endif /* __C3ARCBALL_H___ */ diff --git a/examples/shared/libc3/src/c3cairo.c b/examples/shared/libc3/src/c3cairo.c deleted file mode 100644 index 2ab449b..0000000 --- a/examples/shared/libc3/src/c3cairo.c +++ /dev/null @@ -1,105 +0,0 @@ -/* - c3cairo.c - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#include "c3cairo.h" -#include "c3driver_geometry.h" - -#if CONFIG_C3_CAIRO - -void -_c3cairo_dispose( - c3geometry_p g, - const c3driver_geometry_t * d) -{ - c3cairo_p c = (c3cairo_p)g; - - if (c->cr) - cairo_destroy(c->cr); - if (c->surface) - cairo_surface_destroy(c->surface); - C3_DRIVER_INHERITED(g, d, dispose); -} - -static void -_c3cairo_project( - c3geometry_p g, - const struct c3driver_geometry_t *d, - c3mat4p m) -{ - C3_DRIVER_INHERITED(g, d, project, m); -} - -const c3driver_geometry_t c3cairo_base_driver = { - .dispose = _c3cairo_dispose, - .project = _c3cairo_project, -}; -extern const c3driver_geometry_t c3texture_driver; -extern const c3driver_geometry_t c3geometry_driver; - -c3cairo_p -c3cairo_new( - struct c3object_t * parent) -{ - c3cairo_p res = malloc(sizeof(*res)); - return c3cairo_init(res, parent); -} - -c3cairo_p -c3cairo_init( - c3cairo_p o, - struct c3object_t * parent) -{ - memset(o, 0, sizeof(*o)); - c3texture_init(&o->tex, parent); - - static const c3driver_geometry_t * list[] = { - &c3cairo_base_driver, &c3texture_driver, &c3geometry_driver, NULL, - }; - ((c3geometry_p)o)->driver = list; - - return o; -} - -c3cairo_p -c3cairo_new_offscreen( - struct c3object_t * parent, - int w, int h) -{ - c3cairo_p o = c3cairo_new(parent); - - o->surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, w, h); - o->cr = cairo_create(o->surface); - - c3pixels_p dst = c3pixels_new(w, h, 4, - cairo_image_surface_get_stride(o->surface), - cairo_image_surface_get_data(o->surface)); - o->tex.geometry.mat.texture = dst; - - return o; -} - -#if 0 -cairo_surface_destroy(_surface); -else -cairo_surface_finish(_surface); -#endif -#endif // CONFIG_C3_CAIRO diff --git a/examples/shared/libc3/src/c3cairo.h b/examples/shared/libc3/src/c3cairo.h deleted file mode 100644 index 04a53c8..0000000 --- a/examples/shared/libc3/src/c3cairo.h +++ /dev/null @@ -1,55 +0,0 @@ -/* - c3cairo.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3CAIRO_H___ -#define __C3CAIRO_H___ - -#include "c3config.h" -#include "c3texture.h" -#include "c3pixels.h" - -#if CONFIG_C3_CAIRO -#include - -typedef struct c3cairo_t { - c3texture_t tex; - cairo_t * cr; - cairo_surface_t * surface; -} c3cairo_t, *c3cairo_p; - -c3cairo_p -c3cairo_new( - struct c3object_t * parent /* = NULL */); - -c3cairo_p -c3cairo_init( - c3cairo_p o, - struct c3object_t * parent /* = NULL */); - -c3cairo_p -c3cairo_new_offscreen( - struct c3object_t * parent /* = NULL */, - int w, int h); - -#endif // CONFIG_C3_CAIRO - -#endif /* __C3CAIRO_H___ */ diff --git a/examples/shared/libc3/src/c3camera.c b/examples/shared/libc3/src/c3camera.c deleted file mode 100644 index a4e6257..0000000 --- a/examples/shared/libc3/src/c3camera.c +++ /dev/null @@ -1,375 +0,0 @@ -/* - c3camera.c - - Copyright 2008-2012 Michel Pollet - Copyright (c) 1998 Paul Rademacher - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - -#include -#include "c3camera.h" - - -void -c3cam_set_distance( - c3cam_p c, - const c3f new_distance) -{ - if ( new_distance <= 0.0 ) /* Distance has to be positive */ - return; - - /* We find the current forward vector */ -// forward = lookat - eye; - c->forward = c3vec3_normalize(c3vec3_sub(c->lookat, c->eye)); - - /* Set distance */ - c->distance = new_distance; - - /* Find new eye point */ - c->eye = c3vec3_sub(c->lookat, c3vec3_mulf(c->forward, c->distance)); - c3cam_update(c); -} - -void -c3cam_set_upv( - c3cam_p c, - const c3vec3 new_up) -{ - c->up = new_up; - c3cam_update(c); -} - -void -c3cam_set_upf( - c3cam_p c, - const c3f x, - const c3f y, - const c3f z) -{ - c3cam_set_upv(c, c3vec3f(x,y,z)); -} - -void -c3cam_set_eyev( - c3cam_p c, - const c3vec3 new_eye) -{ - c->eye = new_eye; - c3cam_update(c); -} - -void -c3cam_set_eyef( - c3cam_p c, - const c3f x, - const c3f y, - const c3f z) -{ - c3cam_set_eyev(c, c3vec3f(x,y,z)); -} - -void -c3cam_set_lookatv( - c3cam_p c, - const c3vec3 new_lookat) -{ - c->lookat = new_lookat; - c3cam_update(c); -} - -void -c3cam_set_lookatf( - c3cam_p c, - const c3f x, - const c3f y, - const c3f z) -{ - c3cam_set_lookatv(c, c3vec3f(x,y,z)); -} - - -void -c3cam_roll( - c3cam_p c, - const c3f angle) -{ - c3mat4 rot = rotation3D(c->forward, angle ); - c->up = c3mat4_mulv3(&rot, c->up); - c3cam_update(c); -} - -void -c3cam_eye_yaw( - c3cam_p c, - const c3f angle) -{ - c3vec3 eye_pt = c3vec3_sub(c->eye, c->lookat); /* eye w/lookat at center */ - c3mat4 rot = rotation3D( c->up, angle ); - - eye_pt = c3mat4_mulv3(&rot, eye_pt); - c->eye = c3vec3_add(c->lookat, eye_pt); - - c3cam_update(c); -} - -void -c3cam_eye_yaw_abs( - c3cam_p c, - const c3f angle, - const c3vec3 axis) -{ - c3vec3 eye_pt = c3vec3_sub(c->eye, c->lookat); /* eye w/lookat at center */ - c3mat4 rot = rotation3D( axis, angle ); - - eye_pt = c3mat4_mulv3(&rot, eye_pt); - c->eye = c3vec3_add(c->lookat, eye_pt); - - c->up = c3mat4_mulv3(&rot, c->up); - - c3cam_update(c); -} - - -void -c3cam_eye_pitch( - c3cam_p c, - const c3f angle) -{ - c3vec3 eye_pt = c3vec3_sub(c->eye, c->lookat); /* eye w/lookat at center */ - c3mat4 rot = rotation3D( c->side, angle ); - - eye_pt = c3mat4_mulv3(&rot, eye_pt); - c->eye = c3vec3_add(c->lookat, eye_pt); - - c->up = c3mat4_mulv3(&rot, c->up); - - c3cam_update(c); -} - -void -c3cam_lookat_yaw( - c3cam_p c, - const c3f angle) -{ - c3vec3 lookat_pt = c3vec3_sub(c->lookat, c->eye); /* lookat w/eye at center */ - c3mat4 rot = rotation3D( c->up, -angle ); - - lookat_pt = c3mat4_mulv3(&rot, lookat_pt); - c->lookat = c3vec3_add(c->eye, lookat_pt); - - c3cam_update(c); -} - -void -c3cam_lookat_pitch( - c3cam_p c, - const c3f angle) -{ - c3vec3 lookat_pt = c3vec3_sub(c->lookat, c->eye); /* lookat w/eye at center */ - c3mat4 rot = rotation3D( c->side, -angle ); - - lookat_pt = c3mat4_mulv3(&rot, lookat_pt); - c->lookat = c3vec3_add(c->eye, lookat_pt); - - c->up = c3mat4_mulv3(&rot, c->up); - - c3cam_update(c); -} - -void -c3cam_reset_up_axis( - c3cam_p c, - const int axis_num) -{ - c3vec3 eye_pt = c3vec3_sub(c->lookat, c->eye); /* eye w/lookat at center */ - c3f eye_distance = c3vec3_length(eye_pt); - c->eye.n[axis_num] = c->lookat.n[axis_num]; - /* Bring eye to same level as lookat */ - - c3vec3 vector = c3vec3_sub(c->eye, c->lookat); - vector = c3vec3_normalize(vector); - vector = c3vec3_mulf(vector, eye_distance); - - c->eye = c3vec3_add(c->lookat, vector); - c->up = c3vec3f( 0.0, 0.0, 0.0 ); - c->up.n[axis_num] = 1.0; - - c3cam_update(c); -} - -void -c3cam_reset_up( - c3cam_p c) -{ - c3cam_reset_up_axis(c, VY ); /* Resets to the Y axis */ -} - -void -c3cam_movef( - c3cam_p c, - const c3f side_move, - const c3f up_move, - const c3f forw_move) -{ - c->eye = c3vec3_add(c->eye, c3vec3_mulf(c->forward, forw_move)); - c->eye = c3vec3_add(c->eye, c3vec3_mulf(c->side, side_move)); - c->eye = c3vec3_add(c->eye, c3vec3_mulf(c->up, up_move)); - c->lookat = c3vec3_add(c->lookat, c3vec3_mulf(c->forward, forw_move)); - c->lookat = c3vec3_add(c->lookat, c3vec3_mulf(c->side, side_move)); - c->lookat = c3vec3_add(c->lookat, c3vec3_mulf(c->up, up_move)); - c3cam_update(c); -} - -void -c3cam_movev( - c3cam_p c, - const c3vec3 v) /* A vector version of the above command */ -{ - c3cam_movef(c, v.n[VX], v.n[VY], v.n[VZ] ); -} - -void -c3cam_move_by_eye( - c3cam_p c, - const c3vec3 new_eye) -{ - c3vec3 diff = c3vec3_sub(new_eye, c->eye); - - c->lookat = c3vec3_add(c->lookat, diff); - c->eye = c3vec3_add(c->eye, diff); - - c3cam_update(c); -} - -void -c3cam_move_by_lookat( - c3cam_p c, - const c3vec3 new_lookat) -{ - c3vec3 diff = c3vec3_sub(new_lookat, c->lookat); - - c->lookat = c3vec3_add(c->lookat, diff); - c->eye = c3vec3_add(c->eye, diff); - - c3cam_update(c); -} - -void -c3cam_move_abs( - c3cam_p c, - const c3vec3 v) -{ - c->lookat = c3vec3_add(c->lookat, v); - c->eye = c3vec3_add(c->eye, v); - - c3cam_update(c); -} - -void -c3cam_rot_about_eye( - c3cam_p c, - const c3mat4p rot) -{ - c3vec3 view = c3vec3_sub(c->lookat, c->eye); - - view = c3mat4_mulv3(rot, view); - c->up = c3mat4_mulv3(rot, c->up); - - c->lookat = c3vec3_add(c->eye, view); - - c3cam_update(c); -} - -void -c3cam_rot_about_lookat( - c3cam_p c, - const c3mat4p rot) -{ - // NOT QUITE RIGHT YET - - c3vec3 view = c3vec3_sub(c->eye, c->lookat); - - view = c3mat4_mulv3(rot, view); - c->up = c3mat4_mulv3(rot, c->up); - - c->eye = c3vec3_add(c->lookat, view); - - c3cam_update(c); -} - -void -c3cam_update_matrix( - c3cam_p c) -{ - c3cam_update(c); - - c3mat4 m1 = translation3D(c3vec3_minus(c->eye)); - c3mat4 m2 = c3mat4_vec4( - c3vec4f(c->side.n[VX], c->up.n[VX], c->forward.n[VX], 0.0), - c3vec4f(c->side.n[VY], c->up.n[VY], c->forward.n[VY], 0.0), - c3vec4f(c->side.n[VZ], c->up.n[VZ], c->forward.n[VZ], 0.0), - c3vec4f(0.0, 0.0, 0.0, 1.0)); - c->mtx = c3mat4_mul(&m1, &m2); -} - -void -c3cam_reset( - c3cam_p c) -{ - memset(c, 0, sizeof(*c)); - c->up = c3vec3f( 0.0, 1.0, 0.0 ); - c->eye = c3vec3f(0.0, 0.0, 10.0); - c->lookat = c3vec3f(0.0,0.0,0.0); - c->fov = 50.0f; - c->mtx = identity3D(); - - c3cam_update(c); -} - -c3cam_p -c3cam_new() -{ - c3cam_p c = malloc(sizeof(*c)); - memset(c, 0, sizeof(*c)); - c3cam_reset(c); - return c; -} - -void -c3cam_init( - c3cam_p c) -{ - memset(c, 0, sizeof(*c)); - c3cam_reset(c); -} - -void -c3cam_update( - c3cam_p c) -{ - /* get proper side and forward vectors, and distance */ - c->forward = c3vec3_minus(c3vec3_sub(c->lookat, c->eye)); - c->distance = c3vec3_length(c->forward); - c->forward = c3vec3_divf(c->forward, c->distance); - - c->side = c3vec3_cross(c->up, c->forward); - c->up = c3vec3_cross(c->forward, c->side); - - c->forward = c3vec3_normalize(c->forward); - c->up = c3vec3_normalize(c->up); - c->side = c3vec3_normalize(c->side); -} diff --git a/examples/shared/libc3/src/c3camera.h b/examples/shared/libc3/src/c3camera.h deleted file mode 100644 index a189f9d..0000000 --- a/examples/shared/libc3/src/c3camera.h +++ /dev/null @@ -1,236 +0,0 @@ -/* - c3camera.h - - Copyright 2008-2012 Michel Pollet - Copyright (c) 1998 Paul Rademacher - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - -#ifndef __C3VIEW_H___ -#define __C3VIEW_H___ - -#include "c3algebra.h" - -typedef struct c3cam_t { - c3vec3 eye, lookat; - c3vec3 up, side, forward; - c3mat4 mtx; - c3f distance; - c3f fov; -} c3cam_t, *c3cam_p; - -/******************************* set_distance() ***********/ -/* This readjusts the distance from the eye to the lookat */ -/* (changing the eye point in the process) */ -/* The lookat point is unaffected */ -void -c3cam_set_distance( - c3cam_p c, - const c3f new_distance); - -/******************************* set_up() ***************/ -void -c3cam_set_upv( - c3cam_p c, - const c3vec3 new_up); -void -c3cam_set_upf( - c3cam_p c, - const c3f x, - const c3f y, - const c3f z); - -/******************************* set_eye() ***************/ -void -c3cam_set_eyev( - c3cam_p c, - const c3vec3 new_eye); -void -c3cam_set_eyef( - c3cam_p c, - const c3f x, - const c3f y, - const c3f z); - -/******************************* set_lookat() ***************/ -void -c3cam_set_lookatv( - c3cam_p c, - const c3vec3 new_lookat); -void -c3cam_set_lookatf( - c3cam_p c, - const c3f x, - const c3f y, - const c3f z); - -/******************************* roll() *****************/ -/* Rotates about the forward vector */ -/* eye and lookat remain unchanged */ -void -c3cam_roll( - c3cam_p c, - const c3f angle); - -/******************************* eye_yaw() *********************/ -/* Rotates the eye about the lookat point, using the up vector */ -/* Lookat is unaffected */ -void -c3cam_eye_yaw( - c3cam_p c, - const c3f angle); - -/******************************* eye_yaw_abs() ******************/ -/* Rotates the eye about the lookat point, with a specific axis */ -/* Lookat is unaffected */ -void -c3cam_eye_yaw_abs( - c3cam_p c, - const c3f angle, - const c3vec3 axis); - -/******************************* eye_pitch() ************/ -/* Rotates the eye about the side vector */ -/* Lookat is unaffected */ -void -c3cam_eye_pitch( - c3cam_p c, - const c3f angle); - -/******************************* lookat_yaw()************/ -/* This assumes the up vector is correct. */ -/* Rotates the lookat about the side vector */ -/* Eye point is unaffected */ -void -c3cam_lookat_yaw( - c3cam_p c, - const c3f angle); - -/******************************* lookat_pitch() *********/ -/* Rotates the lookat point about the side vector */ -/* This assumes the side vector is correct. */ -/* Eye point is unaffected */ -void -c3cam_lookat_pitch( - c3cam_p c, - const c3f angle); - -/******************************* reset_up() ******************/ -/* Resets the up vector to a specified axis (0=X, 1=Y, 2=Z) */ -/* Also sets the eye point level with the lookat point, */ -/* along the specified axis */ -void -c3cam_reset_up_axis( - c3cam_p c, - const int axis_num); -void -c3cam_reset_up( - c3cam_p c); - -/******************************* move() ********************/ -/* Moves a specified distance in the forward, side, and up */ -/* directions. This function does NOT move by world */ -/* coordinates. To move by world coords, use the move_abs */ -/* function. */ -void -c3cam_movef( - c3cam_p c, - const c3f side_move, - const c3f up_move, - const c3f forw_move); -void -c3cam_movev( - c3cam_p c, - const c3vec3 v); /* A vector version of the above command */ - -/******************************* move_by_eye() ***********/ -/* Sets the eye point, AND moves the lookat point by the */ -/* same amount as the eye is moved. */ -void -c3cam_move_by_eye( - c3cam_p c, - const c3vec3 new_eye); - -/******************************* move_by_lookat() *********/ -/* Sets the lookat point, AND moves the eye point by the */ -/* same amount as the lookat is moved. */ -void -c3cam_move_by_lookat( - c3cam_p c, - const c3vec3 new_lookat); - -/******************************* move_abs() *****************/ -/* Move the eye and lookat in world coordinates */ -void -c3cam_move_abs( - c3cam_p c, - const c3vec3 v); - -/****************************** rot_about_eye() ************/ -/* Rotates the lookat point about the eye, based on a 4x4 */ -/* (pure) rotation matrix */ -void -c3cam_rot_about_eye( - c3cam_p c, - const c3mat4p rot); - -/****************************** rot_about_lookat() ************/ -/* Rotates the lookat point about the lookat, based on a 4x4 */ -/* (pure) rotation matrix */ -void -c3cam_rot_about_lookat( - c3cam_p c, - const c3mat4p rot); - -/******************************* make_mtx() *************/ -/* Constructs a 4x4 matrix - used by load_to_openGL() */ -void -c3cam_update_matrix( - c3cam_p c); - -/******************************* load_to_openGL() ********/ -/* Sets the OpenGL modelview matrix based on the current */ -/* camera coordinates */ -//void c3cam_load_to_openGL(); - -/******************************* load_to_openGL_noident() ******/ -/* Multiplies the current camera matrix by the existing openGL */ -/* modelview matrix. This is same as above function, but */ -/* does not set the OpenGL matrix to identity first */ -//void c3cam_load_to_openGL_noident(); - -/******************************* reset() ****************/ -/* Resets the parameters of this class */ -void -c3cam_reset( - c3cam_p c); - -/******************************* c3cam_t() ************/ -/* Constructor */ -c3cam_p -c3cam_new(); - -void -c3cam_init( - c3cam_p c); -/******************************* update() ****************/ -/* updates the view params. Call this after making */ -/* direct changes to the vectors or points of this class */ -void c3cam_update( - c3cam_p c); - -#endif /* __C3VIEW_H___ */ diff --git a/examples/shared/libc3/src/c3config-darwin.h b/examples/shared/libc3/src/c3config-darwin.h deleted file mode 100644 index 9358520..0000000 --- a/examples/shared/libc3/src/c3config-darwin.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __C3_CONFIG__ -#define __C3_CONFIG__ -#define CONFIG_C3_VERSION "0.1.0" -#define CONFIG_C3_PLATFORM "darwin" -// #define CONFIG_C3_CAIRO 1 -#endif diff --git a/examples/shared/libc3/src/c3config-linux.h b/examples/shared/libc3/src/c3config-linux.h deleted file mode 100644 index 8b75bf5..0000000 --- a/examples/shared/libc3/src/c3config-linux.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __C3_CONFIG__ -#define __C3_CONFIG__ -#define CONFIG_C3_VERSION "0.1.1" -#define CONFIG_C3_PLATFORM "linux" -#define CONFIG_C3_CAIRO 1 -#endif diff --git a/examples/shared/libc3/src/c3config.h b/examples/shared/libc3/src/c3config.h deleted file mode 100644 index 4732b3f..0000000 --- a/examples/shared/libc3/src/c3config.h +++ /dev/null @@ -1,33 +0,0 @@ -/* - c3config.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - -#ifndef __C3_CONFIG_MAIN_H_ -#define __C3_CONFIG_MAIN_H_ - -#if __APPLE__ -#include "c3config-darwin.h" -#elif __linux__ -#include "c3config-linux.h" -#else -#error No target platform detected, tweak the makefile -#endif - -#endif // __C3_CONFIG_MAIN_H_ diff --git a/examples/shared/libc3/src/c3context.c b/examples/shared/libc3/src/c3context.c deleted file mode 100644 index 8c38fb0..0000000 --- a/examples/shared/libc3/src/c3context.c +++ /dev/null @@ -1,178 +0,0 @@ -/* - c3context.c - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - -#include -#include "c3context.h" -#include "c3object.h" -#include "c3light.h" -#include "c3driver_context.h" - -c3context_p -c3context_new( - int w, - int h) -{ - c3context_p res = malloc(sizeof(*res)); - return c3context_init(res, w, h); -} - -c3context_p -c3context_init( - c3context_p c, - int w, - int h) -{ - memset(c, 0, sizeof(*c)); - - c3context_view_t v = { - .type = C3_CONTEXT_VIEW_EYE, - .size = c3vec2f(w, h), - .dirty = 1, - .index = c->views.count, - }; - c3cam_init(&v.cam); - c3context_view_array_add(&c->views, v); - c->root = c3object_new(NULL); - c->root->context = c; - - return c; -} - -void -c3context_dispose( - c3context_p c) -{ - c3object_dispose(c->root); - for (int i = 0; i < c->views.count; i++) - c3geometry_array_free(&c->views.e[i].projected); - free(c); -} - -static c3context_view_p qsort_view; - -/* - * Computes the distance from the 'eye' of the camera, sort by this value - */ -static int -_c3_z_sorter( - const void *_p1, - const void *_p2) -{ - c3geometry_p g1 = *(c3geometry_p*)_p1; - c3geometry_p g2 = *(c3geometry_p*)_p2; - // get center of bboxes - c3vec3 c1 = c3vec3_add(g1->bbox.min, c3vec3_divf(c3vec3_sub(g1->bbox.max, g1->bbox.min), 2)); - c3vec3 c2 = c3vec3_add(g2->bbox.min, c3vec3_divf(c3vec3_sub(g2->bbox.max, g2->bbox.min), 2)); - - c3cam_p cam = &qsort_view->cam; - c3f d1 = c3vec3_length2(c3vec3_sub(c1, cam->eye)); - c3f d2 = c3vec3_length2(c3vec3_sub(c2, cam->eye)); - - if (d1 > qsort_view->z.max) qsort_view->z.max = d1; - if (d1 < qsort_view->z.min) qsort_view->z.min = d1; - if (d2 > qsort_view->z.max) qsort_view->z.max = d2; - if (d2 < qsort_view->z.min) qsort_view->z.min = d2; - /* - * make sure transparent items are drawn after everyone else - */ - if (g1->mat.color.n[3] < 1) - d1 -= 100000.0; - if (g2->mat.color.n[3] < 1) - d2 -= 100000.0; - if (g1->type.type == C3_LIGHT_TYPE) - d1 = -200000 + (int)(((c3light_p)g1)->light_id); - if (g2->type.type == C3_LIGHT_TYPE) - d2 = -200000 + (int)(((c3light_p)g2)->light_id); - - return d1 < d2 ? 1 : d1 > d2 ? -1 : 0; -} - -int -c3context_project( - c3context_p c) -{ - if (!c->root) - return 0; - int res = 0; - /* - * if the root object is dirty, all the views are also - * dirty since the geometry has changed - */ - if (c->root->dirty) { - for (int ci = 0; ci < c->views.count; ci++) - c->views.e[ci].dirty = 1; - c3mat4 m = identity3D(); - c3object_project(c->root, &m); - res++; - } - - /* - * if the current view is dirty, gather all the geometry - * and Z sort it in a basic way - */ - c3context_view_p v = qsort_view = c3context_view_get(c); - if (v->dirty) { - res++; - c3cam_update_matrix(&v->cam); - - c3geometry_array_p array = &c3context_view_get(c)->projected; - c3geometry_array_clear(array); - c3object_get_geometry(c->root, array); - - v->z.min = 1000000000; - v->z.max = -1000000000; - - qsort(v->projected.e, - v->projected.count, sizeof(v->projected.e[0]), - _c3_z_sorter); - v->z.min = sqrt(v->z.min) * 0.5f; - v->z.max = sqrt(v->z.max); - - /* - * Recalculate the perspective view using the new Z values - */ - v->projection = perspective3D( - v->cam.fov, - v->size.x / v->size.y, - v->z.min, v->z.max); - - v->dirty = 0; - } - return res; -} - -void -c3context_draw( - c3context_p c) -{ - c3context_project(c); - - c3context_view_p v = c3context_view_get(c); - - C3_DRIVER(c, context_view_draw, v); - - c3geometry_array_p array = &v->projected; - for (int gi = 0; gi < array->count; gi++) { - c3geometry_p g = array->e[gi]; - c3geometry_draw(g); - } -} - diff --git a/examples/shared/libc3/src/c3context.h b/examples/shared/libc3/src/c3context.h deleted file mode 100644 index fc3c4d1..0000000 --- a/examples/shared/libc3/src/c3context.h +++ /dev/null @@ -1,135 +0,0 @@ -/* - c3context.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3CONTEXT_H___ -#define __C3CONTEXT_H___ - -#include "c3algebra.h" -#include "c3geometry.h" -#include "c3pixels.h" -#include "c3program.h" -#include "c3camera.h" - -enum { - C3_CONTEXT_VIEW_NONE = 0, - C3_CONTEXT_VIEW_EYE, - C3_CONTEXT_VIEW_LIGHT -}; - -typedef struct c3context_view_t { - int type : 4, // C3_CONTEXT_VIEW_EYE... - dirty : 1, - index : 4; // index in context array - c3apiobject_t bid; // buffer id (fbo, texture...) - c3vec2 size; // in pixels. for fbo/textures/window - c3cam_t cam; - c3mat4 projection; // projection matrix - - c3geometry_array_t projected; - struct { - c3f min, max; - } z; -} c3context_view_t, *c3context_view_p; - -DECLARE_C_ARRAY(c3context_view_t, c3context_view_array, 4); - -//! c3context_t is a container for a 'scene' to be drawn -/*! - * A c3context_t holds a root object, a list of already cached projected - * version of the geometry, and a driver that can be customized to draw it. - * - * This is a wrapper around a "top level object", the list of projected - * geometries is kept, purged and resorted if the root object becomes - * dirty - */ -typedef struct c3context_t { - int current; - c3context_view_array_t views; - - struct c3object_t * root; // root object - - c3pixels_array_t pixels; // pixels, textures... - c3program_array_t programs; // fragment, vertex, geometry shaders - - const struct c3driver_context_t ** driver; -} c3context_t, *c3context_p; - -//! Allocates a new context of size w=width, h=height -c3context_p -c3context_new( - int w, - int h); - -//! Initializes a new context 'c' of size w=width, h=height -c3context_p -c3context_init( - c3context_p c, - int w, - int h); - -//! Disposes the context, and everything underneath -void -c3context_dispose( - c3context_p c); - -//! Reproject geometry for dirty objects -int -c3context_project( - c3context_p c); -//! Draws the context -void -c3context_draw( - c3context_p c); - -IMPLEMENT_C_ARRAY(c3context_view_array); - -/* - * Set and get the current view, this is done - * before projecting and drawing - */ -static inline c3context_view_p -c3context_view_get( - c3context_p c ) -{ - return &c->views.e[c->current]; -} - -static inline c3context_view_p -c3context_view_get_at( - c3context_p c, - int view) -{ - if (view < c->views.count) - return &c->views.e[view]; - return NULL; -} - -static inline void -c3context_view_set( - c3context_p c, - int view) -{ - if (view < c->views.count) - c->current = view; -} - -#endif /* __C3CONTEXT_H___ */ diff --git a/examples/shared/libc3/src/c3driver.h b/examples/shared/libc3/src/c3driver.h deleted file mode 100644 index b48a4c7..0000000 --- a/examples/shared/libc3/src/c3driver.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - c3driver.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3DRIVER_H___ -#define __C3DRIVER_H___ - -#define C3_DRIVER_CALL(__o, __callback, __args...) { \ - if ((__o) && (__o)->driver) \ - for (int _di = 0; (__o)->driver[_di]; _di++) \ - if ((__o)->driver[_di]->__callback) { \ - (__o)->driver[_di]->__callback(__o, (__o)->driver[_di], ##__args); \ - break; \ - } \ - } -#define C3_DRIVER(__o, __callback, __args...) \ - C3_DRIVER_CALL(__o, __callback, ##__args) -#define C3_DRIVER_INHERITED(__o, __driver, __callback, __args...) { \ - if ((__o) && (__o)->driver) \ - for (int _di = 0; (__o)->driver[_di]; _di++) \ - if ((__o)->driver[_di] == __driver && (__o)->driver[_di+1]) { \ - (__o)->driver[_di+1]->__callback(__o, (__o)->driver[_di+1], ##__args); \ - break; \ - } \ - } -#endif /* __C3DRIVER_H___ */ diff --git a/examples/shared/libc3/src/c3driver_context.h b/examples/shared/libc3/src/c3driver_context.h deleted file mode 100644 index 221b026..0000000 --- a/examples/shared/libc3/src/c3driver_context.h +++ /dev/null @@ -1,69 +0,0 @@ -/* - c3driver_context.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3DRIVER_CONTEXT_H___ -#define __C3DRIVER_CONTEXT_H___ - -#include "c3driver.h" - -struct c3context_t; -struct c3driver_context_t; -struct c3geometry_t; -struct c3context_view_t; - -typedef struct c3driver_context_t { - /* - * Called when a geometry projection had changed in world view - * can also be used to prepare resources like textures and so on - */ - void (*geometry_project)( - struct c3context_t * c, - const struct c3driver_context_t *d, - struct c3geometry_t * g, - union c3mat4 * mat); - /* - * Called to draw a geometry - */ - void (*geometry_draw)( - struct c3context_t * c, - const struct c3driver_context_t *d, - struct c3geometry_t * g); - - /* - * Called when starting to draw a context view(point) - */ - void (*context_view_draw)( - struct c3context_t * c, - const struct c3driver_context_t *d, - struct c3context_view_t * ctx); - - /* - * called when a geometry is disposed of, let the application - * delete resources like textures etc - */ - void (*geometry_dispose)( - struct c3context_t * c, - const struct c3driver_context_t *d, - struct c3geometry_t * g); -} c3driver_context_t, *c3driver_context_p; - -#endif /* __C3DRIVER_CONTEXT_H___ */ diff --git a/examples/shared/libc3/src/c3driver_geometry.h b/examples/shared/libc3/src/c3driver_geometry.h deleted file mode 100644 index f8edddc..0000000 --- a/examples/shared/libc3/src/c3driver_geometry.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - c3driver_geometry.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3DRIVER_GEOMETRY_H___ -#define __C3DRIVER_GEOMETRY_H___ - -#include "c3driver.h" - -struct c3geometry_t; - -typedef struct c3driver_geometry_t { - void (*dispose)( - struct c3geometry_t * geometry, - const struct c3driver_geometry_t *d); - void (*project)( - struct c3geometry_t * geometry, - const struct c3driver_geometry_t *d, - union c3mat4 * mat); - void (*draw)( - struct c3geometry_t * geometry, - const struct c3driver_geometry_t *d); -} c3driver_geometry_t, *c3driver_geometry_p; - - -#endif /* __C3DRIVER_GEOMETRY_H___ */ diff --git a/examples/shared/libc3/src/c3driver_object.h b/examples/shared/libc3/src/c3driver_object.h deleted file mode 100644 index ed1ea27..0000000 --- a/examples/shared/libc3/src/c3driver_object.h +++ /dev/null @@ -1,65 +0,0 @@ -/* - c3driver_object.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3DRIVER_OBJECT_H___ -#define __C3DRIVER_OBJECT_H___ - -#include "c3driver.h" - -struct c3object_t; -struct c3geometry_array_t; -union c3mat4; - -typedef struct c3driver_object_t { - /* - * Delete any object related to this object, geometry etc - * The object will still exist, just empty - */ - void (*clear)( - struct c3object_t * object, - const struct c3driver_object_t * d); - /* - * Dispose of the remaining memory for an object, detaches it - * and frees remaining traces of it - */ - void (*dispose)( - struct c3object_t * object, - const struct c3driver_object_t * d); - /* - * Adds sub objects geometry and self geometry to array 'out' - */ - void (*get_geometry)( - struct c3object_t * object, - const struct c3driver_object_t * d, - struct c3geometry_array_t * out); - /* - * Reproject geometry along matrix 'mat', applies our own - * transform and call down the chain for sub-objects - */ - void (*project)( - struct c3object_t * object, - const struct c3driver_object_t * d, - union c3mat4 * mat); -} c3driver_object_t, *c3driver_object_p; - - -#endif /* __C3DRIVER_OBJECT_H___ */ diff --git a/examples/shared/libc3/src/c3geometry.c b/examples/shared/libc3/src/c3geometry.c deleted file mode 100644 index 2b62d5b..0000000 --- a/examples/shared/libc3/src/c3geometry.c +++ /dev/null @@ -1,262 +0,0 @@ -/* - c3geometry.c - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#include -#include -#include "c3object.h" -#include "c3context.h" -#include "c3driver_geometry.h" -#include "c3driver_context.h" - -static void -_c3geometry_dispose( - c3geometry_p g, - const struct c3driver_geometry_t *d) -{ - /* - * If we're still attached to an object, detach - */ - if (g->object) { - for (int oi = 0; oi < g->object->geometry.count; oi++) - if (g->object->geometry.e[oi] == g) { - c3geometry_array_delete(&g->object->geometry, oi, 1); - c3object_set_dirty(g->object, true); - break; - } - g->object = NULL; - } - /* let the context driver have a chance to clear it's own stuff */ - if (g->object && g->object->context) - C3_DRIVER(g->object->context, geometry_dispose, g); - str_free(g->name); - c3vertex_array_free(&g->vertice); - c3tex_array_free(&g->textures); - c3colorf_array_free(&g->colorf); - free(g); -// C3_DRIVER_INHERITED(g, d, dispose); -} - -static void -_c3geometry_project( - c3geometry_p g, - const struct c3driver_geometry_t *d, - c3mat4p m) -{ - /* make sure there are actual elements in the array - * if it had been purged, the element count might remain - * but the array size is zero - */ - if (g->vertice.count < g->vertice.size) { - for (int vi = 0; vi < g->vertice.count; vi++) { - c3vec3 v = c3mat4_mulv3(m, g->vertice.e[vi]); - if (vi == 0) - g->bbox.min = g->bbox.max = v; - else { - g->bbox.max = c3vec3_min(g->bbox.min, v); - g->bbox.max = c3vec3_max(g->bbox.max, v); - } - } - } - /* else -- do not clear bbox on purged arrays - g->bbox.min = g->bbox.max = c3vec3f(0,0,0); */ - - if (g->object && g->object->context) - C3_DRIVER(g->object->context, geometry_project, g, m); - g->dirty = 0; -// C3_DRIVER_INHERITED(g, d, project); -} - -static void -_c3geometry_draw( - c3geometry_p g, - const struct c3driver_geometry_t *d) -{ - if (g->object && g->object->context) - C3_DRIVER(g->object->context, geometry_draw, g); -// C3_DRIVER_INHERITED(g, d, draw); -} - -const c3driver_geometry_t c3geometry_driver = { - .dispose = _c3geometry_dispose, - .project = _c3geometry_project, - .draw = _c3geometry_draw, -}; - -c3geometry_p -c3geometry_new( - c3geometry_type_t type, - c3object_p o /* = NULL */) -{ - c3geometry_p res = malloc(sizeof(c3geometry_t)); - return c3geometry_init(res, type, o); -} - -c3geometry_p -c3geometry_init( - c3geometry_p g, - c3geometry_type_t type, - struct c3object_t * o /* = NULL */) -{ - memset(g, 0, sizeof(*g)); - static const c3driver_geometry_t * list[] = { - &c3geometry_driver, NULL, - }; - g->driver = list; - g->type = type; - g->dirty = 1; - if (o) - c3object_add_geometry(o, g); - return g; -} - -c3driver_geometry_p -c3geometry_get_custom( - c3geometry_p g ) -{ - if (g->custom) - return (c3driver_geometry_p)g->driver[0]; - int cnt = 0; - for (int di = 0; g->driver[di]; di++) - cnt++; - c3driver_geometry_p * newd = malloc(sizeof(c3driver_geometry_p) * (cnt + 2)); - memcpy(&newd[1], g->driver, (cnt + 1) * sizeof(c3driver_geometry_p)); - newd[0] = malloc(sizeof(c3driver_geometry_t)); - memset(newd[0], 0, sizeof(c3driver_geometry_t)); - g->custom = 1; - g->driver = (typeof(g->driver))newd; - return newd[0]; -} - -void -c3geometry_dispose( - c3geometry_p g) -{ - C3_DRIVER(g, dispose); -} - -void -c3geometry_project( - c3geometry_p g, - c3mat4p m) -{ - if (!g->dirty) - return; - C3_DRIVER(g, project, m); -} - -void -c3geometry_draw( - c3geometry_p g ) -{ - C3_DRIVER(g, draw); -} - -void -c3geometry_factor( - c3geometry_p g, - c3f tolerance, - c3f normaltolerance) -{ - printf("%s has %d/%d/%d vertices/normals/tex and %d indexes\n", __func__, - g->vertice.count, g->normals.count, g->textures.count, - g->indices.count); - - c3f tolerance2 = tolerance * tolerance; - - int in_index = g->indices.count; - int vcount = in_index ? in_index : g->vertice.count; - int input = 0; - int output = 0; - g->indices.count = 0; - while (input < vcount) { - int current = in_index ? g->indices.e[input] : input; - c3vec3 v = g->vertice.e[current]; - c3vec3 n = g->normals.count ? g->normals.e[current] : c3vec3f(0,0,0); - c3vec3 np = c3vec3_polar(n); // normal in polar coord - - int oi = -1; - for (int ci = 0; ci < output && oi == -1; ci++) - if (c3vec3_length2(c3vec3_sub(g->vertice.e[ci], v)) < tolerance2) { - if (g->normals.count) { - c3vec3 nc = g->normals.e[ci]; - c3vec3 pc = c3vec3_polar(nc); - - c3vec3 d = c3vec3_sub(np, pc); - while (d.n[0] <= -M_PI) d.n[0] += (2*M_PI); - while (d.n[1] <= -M_PI) d.n[1] += (2*M_PI); - - if (fabs(d.n[0]) < normaltolerance && - fabs(d.n[1]) < normaltolerance) { - oi = ci; - // replace the compared normal with the 'merged' one - // that should hopefully trim it to the right direction - // somehow. Not perfect obviously - g->normals.e[ci] = c3vec3_add(n, nc); - } - } else - oi = ci; - } - if (oi == -1) { - oi = output; - g->vertice.e[output] = g->vertice.e[current]; - if (g->textures.count) - g->textures.e[output] = g->textures.e[current]; - if (g->normals.count) - g->normals.e[output] = n; - if (g->colorf.count) - g->colorf.e[output] = g->colorf.e[current]; - output++; - } - c3indices_array_add(&g->indices, oi); - input++; - } - g->vertice.count = output; - c3vertex_array_realloc(&g->vertice, output); - if (g->textures.count) { - g->textures.count = output; - c3tex_array_realloc(&g->textures, output); - } - if (g->normals.count) { - g->normals.count = output; - c3vertex_array_realloc(&g->normals, output); - for (int ni = 0; ni < output; ni++) - g->normals.e[ni] = c3vec3_normalize(g->normals.e[ni]); - } - if (g->colorf.count) { - g->colorf.count = output; - c3colorf_array_realloc(&g->colorf, output); - } - c3geometry_set_dirty(g, 1); - - printf("%s converted to %d vertices and %d indexes\n", __func__, - g->vertice.count, g->indices.count); -} - -void -c3geometry_set_dirty( - c3geometry_p g, - int dirty ) -{ - g->dirty = dirty; - if (dirty && g->object) - c3object_set_dirty(g->object, 1); -} diff --git a/examples/shared/libc3/src/c3geometry.h b/examples/shared/libc3/src/c3geometry.h deleted file mode 100644 index 548f22c..0000000 --- a/examples/shared/libc3/src/c3geometry.h +++ /dev/null @@ -1,217 +0,0 @@ -/* - c3geometry.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - -/* - * c3geometry is a structure containing one set of vertices and various - * bits related to it. Ultimately it contains a pre-cached projected - * version of the vertices that the drawing code can use directly. - * c3geometry is aways attached to a c3object as a parent. - */ - -#ifndef __C3GEOMETRY_H___ -#define __C3GEOMETRY_H___ - -#include "c3types.h" -#include "c_utils.h" - - -struct c3object_t; -struct c3pixels_t; -struct c3program_t; - -/* - * Allow per-array storage of an extra buffer object - * if 'mutable' is not set (default), the array can be clear()ed after - * the buffer is bound. - * If the array is mutable, setting the 'dirty' flag will signal - * the rendering layer that it needs to update the buffer object - */ -typedef struct c3geometry_buffer_t { - c3apiobject_t bid; // buffer object - void * refCon; // reference constant for application use - int mutable : 1, dirty : 1; -} c3geometry_buffer_t, * c3geometry_buffer_p; - -DECLARE_C_ARRAY(c3vertex_t, c3vertex_array, 16, c3geometry_buffer_t buffer); -DECLARE_C_ARRAY(c3tex_t, c3tex_array, 16, c3geometry_buffer_t buffer); -DECLARE_C_ARRAY(c3colorf_t, c3colorf_array, 16, c3geometry_buffer_t buffer); -DECLARE_C_ARRAY(c3index_t, c3indices_array, 16, c3geometry_buffer_t buffer); - -//! Geometry material. -typedef struct c3material_t { - c3colorf_t color; - struct c3pixels_t * texture; - struct c3program_t * program; - struct { - uint32_t src, dst; - } blend; -} c3material_t; - -#define C3_TYPE(_a,_b,_c,_d) \ - (((uint32_t)(_a)<<24)|((uint32_t)(_b)<<16)|((uint32_t)(_c)<<8)|(_d)) - -//! Generic geometry type -enum { - C3_RAW_TYPE = C3_TYPE('r','a','w','g'), - C3_TRIANGLE_TYPE = C3_TYPE('t','r','i','a'), -}; - -/*! - * geometry type. - * The type is used as non-opengl description of what the geometry - * contains, like "texture", and the subtype can be used to store the - * real format of the vertices. like GL_LINES etc - */ -typedef struct c3geometry_type_t { - uint32_t type; // C3_RAW_TYPE etc - c3apiobject_t subtype; // GL_LINES etc -} c3geometry_type_t; - -/*! - * Geometry object. Describes a set of vertices, texture coordinates, - * normals, colors and material - * The projection is not set here, a geometry is always attached to a - * c3object that has the projection - */ -typedef struct c3geometry_t { - c3geometry_type_t type; // geometry type - int dirty : 1, - custom : 1, // has a custom driver - hidden : 8; // hidden from context_view, bitfield - str_p name; // optional - c3apiobject_t bid; // buffer id for opengl - - c3material_t mat; - struct c3object_t * object; // parent object - const struct c3driver_geometry_t ** driver; - - c3bbox_t bbox; // world aligned bounding box - c3vertex_array_t vertice; - c3tex_array_t textures; // optional: texture coordinates - c3vertex_array_t normals; // optional: vertex normals - c3indices_array_t indices; // optional: vertex indices - // could go ? - c3colorf_array_t colorf; // optional: vertex colors - - /* - * Some shared attributes - */ - union { - struct { - float width; - } line; - }; -} c3geometry_t, *c3geometry_p; - -DECLARE_C_ARRAY(c3geometry_p, c3geometry_array, 4); - -//! Allocates a new geometry, init it, and attached it to parent 'o' (optional) -c3geometry_p -c3geometry_new( - c3geometry_type_t type, - struct c3object_t * o /* = NULL */); -//! Init an existing new geometry, and attached it to parent 'o' (optional) -c3geometry_p -c3geometry_init( - c3geometry_p g, - c3geometry_type_t type, - struct c3object_t * o /* = NULL */); -//! Disposes (via the driver interface) the geometry -void -c3geometry_dispose( - c3geometry_p g); - -//! Prepares a geometry. -/*! - * The project phase is called only when the container object is 'dirty' - * for example if it's projection has changed. - * The project call is responsible for reprojecting the geometry and that - * sort of things - */ -void -c3geometry_project( - c3geometry_p g, - c3mat4p m); - -//! Draw the geometry -/* - * Called when drawing the context. Typicaly this calls the geometry - * driver, which in turn will call the 'context' draw method, and the - * application to draw this particular geometry - */ -void -c3geometry_draw( - c3geometry_p g ); - -//! Sets or clear geometry dirty bit -/* - * This will dirty parent objects if set to 1 - */ -void -c3geometry_set_dirty( - c3geometry_p g, - int dirty ); - -/* - * if not present, create an index array, and collapses - * the vertex array by removing vertices that are within - * 'tolerance' (as a distance between vertices considered equals). - * If the normals exists, they are also compared - * to normaltolerance (in radian) and if both position and normals - * are within tolerance, the vertices are collapsed and the normals - * are averaged. - * This code allows smooth rendering of STL files generated by - * CAD programs that generate only triangle normals. - */ -void -c3geometry_factor( - c3geometry_p g, - c3f tolerance, - c3f normaltolerance); - -//! allocate (if not there) and return a custom driver for this geometry -/*! - * Geometries come with a default, read only driver stack.. It is a constant - * global to save memory for each of the 'generic' object. - * This call will duplicate that stack and allocate (if not there) a read/write - * empty driver that the application can use to put their own, per object, - * callback. For example you can add your own project() or draw() function - * and have it called first - */ -struct c3driver_geometry_t * -c3geometry_get_custom( - c3geometry_p g ); - -IMPLEMENT_C_ARRAY(c3geometry_array); -IMPLEMENT_C_ARRAY(c3vertex_array); -IMPLEMENT_C_ARRAY(c3tex_array); -IMPLEMENT_C_ARRAY(c3colorf_array); -IMPLEMENT_C_ARRAY(c3indices_array); - -static inline c3geometry_type_t -c3geometry_type(uint32_t type, int subtype) -{ - c3geometry_type_t r;// = { .type = type, .subtype = subtype }; // older gcc <4.6 doesn't like this - r.type = type; r.subtype = (c3apiobject_t)subtype; - return r; -} - -#endif /* __C3GEOMETRY_H___ */ diff --git a/examples/shared/libc3/src/c3light.c b/examples/shared/libc3/src/c3light.c deleted file mode 100644 index 368a74e..0000000 --- a/examples/shared/libc3/src/c3light.c +++ /dev/null @@ -1,46 +0,0 @@ -/* - c3light.c - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - simavr is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - simavr is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with simavr. If not, see . - */ - - -#include -#include -#include "c3light.h" - -c3light_p -c3light_new( - struct c3object_t * o /* = NULL */) -{ - c3light_p res = malloc(sizeof(*res)); - return c3light_init(res, o); -} - -c3light_p -c3light_init( - c3light_p l, - struct c3object_t * o /* = NULL */) -{ - memset(l, 0, sizeof(*l)); - c3geometry_init(&l->geometry, - c3geometry_type(C3_LIGHT_TYPE, 0), - o); - - return l; -} diff --git a/examples/shared/libc3/src/c3light.h b/examples/shared/libc3/src/c3light.h deleted file mode 100644 index 1ae153d..0000000 --- a/examples/shared/libc3/src/c3light.h +++ /dev/null @@ -1,54 +0,0 @@ -/* - c3light.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - simavr is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - simavr is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with simavr. If not, see . - */ - - -#ifndef __C3LIGHT_H___ -#define __C3LIGHT_H___ - -#include "c3geometry.h" - -enum { - C3_LIGHT_TYPE = C3_TYPE('l','i','g','h'), -}; - -typedef struct c3light_t { - c3geometry_t geometry; - c3apiobject_t light_id; - int context_view_index; - c3vec4 position; - c3vec3 direction; - c3f fov; - struct { - c3colorf_t ambiant; - c3colorf_t specular; - } color; -} c3light_t, *c3light_p; - -c3light_p -c3light_new( - struct c3object_t * o /* = NULL */); - -c3light_p -c3light_init( - c3light_p l, - struct c3object_t * o /* = NULL */); - -#endif /* __C3LIGHT_H___ */ diff --git a/examples/shared/libc3/src/c3lines.c b/examples/shared/libc3/src/c3lines.c deleted file mode 100644 index a6b85ee..0000000 --- a/examples/shared/libc3/src/c3lines.c +++ /dev/null @@ -1,142 +0,0 @@ -/* - c3lines.c - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#include "c3object.h" -#include "c3context.h" -#include "c3driver_geometry.h" -#include "c3lines.h" - - -void -c3lines_prepare( - c3vertex_p vertices, // points A,B pairs - size_t count, - c3vertex_array_p v, // triangles - c3tex_array_p tex, - c3f lineWidth, - c3mat4p m) -{ - c3tex_array_clear(tex); - c3vertex_array_clear(v); - for (int l = 0; l < count; l += 2) { - c3vec3 a = c3mat4_mulv3(m, vertices[l]); - c3vec3 b = c3mat4_mulv3(m, vertices[l+1]); - - c3vec3 e = c3vec3_mulf(c3vec3_normalize(c3vec3_sub(b, a)), lineWidth); - - c3vec3 N = c3vec3f(-e.y, e.x, 0); - c3vec3 S = c3vec3_minus(N); - c3vec3 NE = c3vec3_add(N, e); - c3vec3 NW = c3vec3_sub(N, e); - c3vec3 SW = c3vec3_minus(NE); - c3vec3 SE = c3vec3_minus(NW); -#if 0 - c3vertex_array_add(v, c3vec3_add(a, SW)); - c3vertex_array_add(v, c3vec3_add(a, NW)); - c3vertex_array_add(v, c3vec3_add(a, S)); - c3vertex_array_add(v, c3vec3_add(a, N)); - c3vertex_array_add(v, c3vec3_add(b, S)); - c3vertex_array_add(v, c3vec3_add(b, N)); - c3vertex_array_add(v, c3vec3_add(b, SE)); - c3vertex_array_add(v, c3vec3_add(b, NE)); -#endif - - const float ts = 1; - - c3vertex_array_add(v, c3vec3_add(a, SW)); - c3vertex_array_add(v, c3vec3_add(a, S)); - c3vertex_array_add(v, c3vec3_add(a, NW)); - c3tex_array_add(tex, c3vec2f(ts * 0 , ts * 0 )); - c3tex_array_add(tex, c3vec2f(ts * 0.5, ts * 0 )); - c3tex_array_add(tex, c3vec2f(ts * 0 , ts * 1 )); - - c3vertex_array_add(v, c3vec3_add(a, S)); - c3vertex_array_add(v, c3vec3_add(a, N)); - c3vertex_array_add(v, c3vec3_add(a, NW)); - c3tex_array_add(tex, c3vec2f(ts * 0.5, ts * 0 )); - c3tex_array_add(tex, c3vec2f(ts * 0.5, ts * 1 )); - c3tex_array_add(tex, c3vec2f(ts * 0 , ts * 1 )); - - c3vertex_array_add(v, c3vec3_add(a, N)); - c3vertex_array_add(v, c3vec3_add(b, S)); - c3vertex_array_add(v, c3vec3_add(b, N)); - c3tex_array_add(tex, c3vec2f(ts * 0.5, ts * 1 )); - c3tex_array_add(tex, c3vec2f(ts * 0.5, ts * 0 )); - c3tex_array_add(tex, c3vec2f(ts * 0.5, ts * 1 )); - - c3vertex_array_add(v, c3vec3_add(a, N)); - c3vertex_array_add(v, c3vec3_add(a, S)); - c3vertex_array_add(v, c3vec3_add(b, S)); - c3tex_array_add(tex, c3vec2f(ts * 0.5, ts * 1 )); - c3tex_array_add(tex, c3vec2f(ts * 0.5, ts * 0 )); - c3tex_array_add(tex, c3vec2f(ts * 0.5, ts * 0 )); - - c3vertex_array_add(v, c3vec3_add(b, N)); - c3vertex_array_add(v, c3vec3_add(b, S)); - c3vertex_array_add(v, c3vec3_add(b, SE)); - c3tex_array_add(tex, c3vec2f(ts * 0.5, ts * 1 )); - c3tex_array_add(tex, c3vec2f(ts * 0.5, ts * 0 )); - c3tex_array_add(tex, c3vec2f(ts * 1 , ts * 0 )); - - c3vertex_array_add(v, c3vec3_add(b, N)); - c3vertex_array_add(v, c3vec3_add(b, SE)); - c3vertex_array_add(v, c3vec3_add(b, NE)); - c3tex_array_add(tex, c3vec2f(ts * 0.5, ts * 1 )); - c3tex_array_add(tex, c3vec2f(ts * 1 , ts * 0 )); - c3tex_array_add(tex, c3vec2f(ts * 1 , ts * 1 )); - - } -} - -void -c3lines_init( - c3geometry_p g, - c3vertex_p vertices, // points A,B pairs - size_t count, - c3f lineWidth) -{ - c3mat4 i = identity3D(); - c3lines_prepare(vertices, count, &g->vertice, &g->textures, lineWidth, &i); - g->type.type = C3_LINES_TYPE; -} - -#if 0 -static void -_c3lines_project( - c3geometry_p g, - const struct c3driver_geometry_t *d, - c3mat4p m) - -const c3driver_geometry_t c3lines_driver = { - .project = _c3lines_project, -}; - -const c3driver_geometry_t c3geometry_driver; - -c3geometry_set_lines( - c3f lineWidth) -{ - static const c3driver_geometry_t * list[] = { - &c3lines_driver, &c3geometry_driver, NULL, - }; -} -#endif diff --git a/examples/shared/libc3/src/c3lines.h b/examples/shared/libc3/src/c3lines.h deleted file mode 100644 index 4ee8b34..0000000 --- a/examples/shared/libc3/src/c3lines.h +++ /dev/null @@ -1,53 +0,0 @@ -/* - c3lines.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3LINES_H___ -#define __C3LINES_H___ - -#include "c3geometry.h" - -enum { - C3_LINES_TYPE = C3_TYPE('l','i','n','e'), -}; -/* - * Takes an array of points A,B and split it into 'fat' lines around - * lineWidth, generates an array of triangles and an array of corresponding - * texture coordinates. Can also do a projection at the same time - * TODO: Add array indices - */ -void -c3lines_prepare( - c3vertex_p vertices, // points A,B pairs - size_t count, - c3vertex_array_p v, // triangles - c3tex_array_p tex, - c3f lineWidth, - c3mat4p m); - -void -c3lines_init( - c3geometry_p g, - c3vertex_p vertices, // points A,B pairs - size_t count, - c3f lineWidth); - -#endif /* __C3LINES_H___ */ diff --git a/examples/shared/libc3/src/c3object.c b/examples/shared/libc3/src/c3object.c deleted file mode 100644 index 69972a3..0000000 --- a/examples/shared/libc3/src/c3object.c +++ /dev/null @@ -1,242 +0,0 @@ -/* - c3object.c - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#include "c3object.h" -#include "c3context.h" -#include "c3driver_object.h" - -void -_c3object_clear( - c3object_p o, - const c3driver_object_t * d) -{ - for (int oi = 0; oi < o->transform.count; oi++) { - o->transform.e[oi]->object = NULL; - c3transform_dispose(o->transform.e[oi]); - } - for (int oi = 0; oi < o->geometry.count; oi++) { - o->geometry.e[oi]->object = NULL; // don't try to detach - c3geometry_dispose(o->geometry.e[oi]); - } - for (int oi = 0; oi < o->objects.count; oi++) { - o->objects.e[oi]->parent = NULL; // don't try to detach - c3object_dispose(o->objects.e[oi]); - } - c3object_array_free(&o->objects); - c3geometry_array_free(&o->geometry); - c3transform_array_free(&o->transform); -} - -void -_c3object_dispose( - c3object_p o, - const c3driver_object_t * d) -{ - if (o->parent) { - for (int oi = 0; oi < o->parent->objects.count; oi++) - if (o->parent->objects.e[oi] == o) { - c3object_array_delete(&o->parent->objects, oi, 1); - c3object_set_dirty(o->parent, true); - break; - } - o->parent = NULL; - } - //C3O_DRIVER_INHERITED(dispose, d); - free(o); -} - -void -_c3object_get_geometry( - c3object_p o, - const c3driver_object_t * d, - c3geometry_array_p out) -{ - // if this object is not visible in this view, exit - // there will be no geometry, so no drawing - uint16_t viewmask = (1 << o->context->current); - if (o->hidden & viewmask) - return; - for (int oi = 0; oi < o->geometry.count; oi++) { - c3geometry_p g = o->geometry.e[oi]; - if (!(g->hidden & viewmask)) - c3geometry_array_add(out, g); - } - for (int oi = 0; oi < o->objects.count; oi++) - c3object_get_geometry(o->objects.e[oi], out); -} - -void -_c3object_project( - c3object_p o, - const c3driver_object_t * d, - c3mat4p m) -{ - o->world = *m; - if (!o->dirty) - return; - c3mat4 p = *m; - for (int pi = 0; pi < o->transform.count; pi++) - p = c3mat4_mul(&p, &o->transform.e[pi]->matrix); - o->world = p; - - for (int gi = 0; gi < o->geometry.count; gi++) { - c3geometry_p g = o->geometry.e[gi]; - c3geometry_project(g, &p); - } - for (int oi = 0; oi < o->objects.count; oi++) - c3object_project(o->objects.e[oi], &p); - o->dirty = false; -} - -const c3driver_object_t c3object_driver = { - .clear = _c3object_clear, - .dispose = _c3object_dispose, - .get_geometry = _c3object_get_geometry, - .project = _c3object_project, -}; - - -c3object_p -c3object_init( - c3object_p o /* = NULL */, - c3object_p parent) -{ - memset(o, 0, sizeof(*o)); - o->parent = parent; - static const c3driver_object_t * list[] = - { &c3object_driver, NULL }; - o->driver = list; - if (parent) { - c3object_array_add(&parent->objects, o); - o->context = parent->context; - } - return o; -} - -c3object_p -c3object_new( - c3object_p o /* = NULL */) -{ - c3object_p res = malloc(sizeof(*o)); - return c3object_init(res, o); -} - -void -c3object_clear( - c3object_p o) -{ - C3_DRIVER(o, clear); -} - -void -c3object_dispose( - c3object_p o) -{ - c3object_clear(o); - C3_DRIVER(o, dispose); -} - -void -c3object_set_dirty( - c3object_p o, - bool dirty) -{ - if (dirty) { - // also mark all our geometry dirty - for (int oi = 0; oi < o->geometry.count; oi++) - if (o->geometry.e[oi]) - o->geometry.e[oi]->dirty = 1; - while (o) { - o->dirty = true; - o = o->parent; - } - } else { - for (int oi = 0; oi < o->objects.count; oi++) - if (o->objects.e[oi]->dirty) - c3object_set_dirty(o->objects.e[oi], false); - o->dirty = false; - } -} - -void -c3object_add_object( - c3object_p o, - c3object_p sub) -{ - if (sub->parent == o) - return; - if (sub->parent) { - for (int oi = 0; oi < sub->parent->objects.count; oi++) { - if (sub->parent->objects.e[oi] == sub) { - c3object_array_delete(&sub->parent->objects, oi, 1); - c3object_set_dirty(sub->parent, true); - break; - } - } - sub->parent = NULL; - } - sub->parent = o; - if (o) { - c3object_array_add(&o->objects, sub); - c3object_set_dirty(o, true); - } -} - -void -c3object_add_geometry( - c3object_p o, - c3geometry_p g) -{ - if (g->object == o) - return; - if (g->object) { - for (int oi = 0; oi < g->object->geometry.count; oi++) { - if (g->object->geometry.e[oi] == g) { - c3geometry_array_delete(&g->object->geometry, oi, 1); - c3object_set_dirty(g->object, true); - break; - } - } - g->object = NULL; - } - g->object = o; - if (o) { - c3geometry_array_add(&o->geometry, g); - c3object_set_dirty(o, true); - } -} - -void -c3object_get_geometry( - c3object_p o, - c3geometry_array_p array ) -{ - C3_DRIVER(o, get_geometry, array); -} - -void -c3object_project( - c3object_p o, - const c3mat4p m) -{ - C3_DRIVER(o, project, m); -} diff --git a/examples/shared/libc3/src/c3object.h b/examples/shared/libc3/src/c3object.h deleted file mode 100644 index b5ec883..0000000 --- a/examples/shared/libc3/src/c3object.h +++ /dev/null @@ -1,124 +0,0 @@ -/* - c3object.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3OBJECT_H___ -#define __C3OBJECT_H___ - -#include -#include "c3transform.h" -#include "c3geometry.h" - -struct c3object_t; - -DECLARE_C_ARRAY(struct c3object_t*, c3object_array, 4); - -//! c3object is a container for child object, and geometry -/*! - * a c3object is a node in a c3object tree, it contains sub-objects and/or - * geometry. It also contains it's own list of transform matrices, so can - * be seen as a "anchor" that can be moved around and where you can - * attach other objects or geometry. - * - * An object has a notion of 'dirty bit' -- something that signals that - * something has changed and deserved reprojection. the dirty bit - * is propagated upward when 1 (up to the root object) and downward when 0 - * (to allow clearing the bit on a subtree) - */ -typedef struct c3object_t { - str_p name; //! optional name - int dirty : 1, - hidden : 8 /* hidden bit mask, related to c3context's views */; - struct c3context_t * context; //! context this object is attached to - struct c3object_t * parent; //! Parent object - const struct c3driver_object_t ** driver; //! Driver stack - - c3mat4 world; // calculated world coordinates - c3transform_array_t transform; - c3object_array_t objects; //! child object list - c3geometry_array_t geometry; //! Object geometri(es) -} c3object_t, *c3object_p; - -//! Allocates and initialize an emty object, attaches it to parent 'o' -c3object_p -c3object_new( - c3object_p o /* = NULL */); -//! Disposes of everything under this object -void -c3object_dispose( - c3object_p o); -//! Clears every sub-object, geometry, and transform, but do not dispose of o -void -c3object_clear( - c3object_p o); -//! Initializes 'o' as a new object, attaches it to parent (optional) -c3object_p -c3object_init( - c3object_p o, - c3object_p parent /* = NULL */); -//! sets the dirty bit for 'o' and related tree -/*! - * When dirty is 1, sets the dirty bit of this object and all the parent - * objects up to the root object. - * When dirty is 0, clear the dirty bit of this object, and all the - * sub objects. - */ -void -c3object_set_dirty( - c3object_p o, - bool dirty); -//! Adds a new geometry g to object o -void -c3object_add_geometry( - c3object_p o, - c3geometry_p g); -//! Adds a new sub-object sub to object o -void -c3object_add_object( - c3object_p o, - c3object_p sub); -//! Adds a new transform matrix, initialized as identity -c3transform_p -c3object_add_transform( - c3object_p o ); -//! Iterates all the sub-objects and collects all the geometries -/*! - * This call iterates the sub-objects and collects all their 'projected' - * geometry, and add them to the array - */ -void -c3object_get_geometry( - c3object_p o, - c3geometry_array_p array ); -//! Project object 'o' using it's own transformations, relative to matrix 'm' -/*! - * Multiply this objects transformation(s) to matrix 'm' and calls - * reprojects the geometries using that matrix as an anchor. also call - * recursively to sub-objects to follow the projection down. - */ -void -c3object_project( - c3object_p o, - const c3mat4p m); - -IMPLEMENT_C_ARRAY(c3object_array); - -#endif /* __C3OBJECT_H___ */ diff --git a/examples/shared/libc3/src/c3pixels.c b/examples/shared/libc3/src/c3pixels.c deleted file mode 100644 index 63cf99e..0000000 --- a/examples/shared/libc3/src/c3pixels.c +++ /dev/null @@ -1,100 +0,0 @@ -/* - c3pixels.c - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - -#include -#include -#include "c3pixels.h" - -c3pixels_p -c3pixels_new( - uint32_t w, - uint32_t h, - int psize /* in bytes */, - size_t row, - void * base) -{ - c3pixels_p p = malloc(sizeof(*p)); - c3pixels_init(p, w, h, psize, row, base); - p->alloc = 1; - return p; -} - -c3pixels_p -c3pixels_init( - c3pixels_p p, - uint32_t w, - uint32_t h, - int psize /* in bytes */, - size_t row, - void * base) -{ - memset (p, 0, sizeof(*p)); - p->w = w; - p->h = h; - p->row = row; - p->psize = psize; - p->base = base; - c3pixels_alloc(p); - return p; -} - -void -c3pixels_dispose( - c3pixels_p p ) -{ - if (p->own && p->base) - free(p->base); - if (p->alloc) - free(p); - else - memset(p, 0, sizeof(*p)); -} - -void -c3pixels_alloc( - c3pixels_p p ) -{ - if (p->base) - return; - p->base = malloc(p->row * p->h); - p->own = p->base != NULL; -} - -void -c3pixels_purge( - c3pixels_p p ) -{ - if (!p->base) - return; - if (p->own) - free(p->base); - p->own = 0; - p->base = NULL; -} - -void -c3pixels_zero( - c3pixels_p p) -{ - if (!p->base) - return; - memset(p->base, 0, p->h * p->row); -} diff --git a/examples/shared/libc3/src/c3pixels.h b/examples/shared/libc3/src/c3pixels.h deleted file mode 100644 index 386f323..0000000 --- a/examples/shared/libc3/src/c3pixels.h +++ /dev/null @@ -1,110 +0,0 @@ -/* - c3pixels.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3PIXELS_H___ -#define __C3PIXELS_H___ - -#include "c3types.h" -#include "c_utils.h" - -//! for format hint -enum { - C3PIXEL_ARGB = 0, - C3PIXEL_RGB, - C3PIXEL_A -}; - -typedef struct c3pixels_t { - str_p name; // optional - uint32_t w, h; // width & height in pixels - size_t row; // size of one row in bytes - void * base; // base address - - union { - struct { - uint32_t own : 1, // is the base our own to delete - alloc : 1, // is the c3pixels_p our own to delete - dirty : 1, // pixels have been changed - psize : 4, // pixel size in byte - normalize : 1, // texture coordinates are 0...1 - trace : 1, // debug - format : 8; // not used internally - }; - uint32_t flags; - }; - c3apiobject_t texture; - int refCount; // TODO: Implement reference counting ? -} c3pixels_t, *c3pixels_p; - -DECLARE_C_ARRAY(c3pixels_p, c3pixels_array, 4); - -//! Allocates a new c3pixels, also allocates the pixels if row == NULL -c3pixels_p -c3pixels_new( - uint32_t w, - uint32_t h, - int psize /* in bytes */, - size_t row, - void * base); - -//! Initializes p, also allocates the pixels if row == NULL -c3pixels_p -c3pixels_init( - c3pixels_p p, - uint32_t w, - uint32_t h, - int psize /* in bytes */, - size_t row, - void * base); - -//! Dispose of the pixels, and potentially p if it was allocated with c3pixels_new -void -c3pixels_dispose( - c3pixels_p p ); - -//! Disposes of the pixels, only -void -c3pixels_purge( - c3pixels_p p ); - -//! (Re)allocate pixels if pixels had been purged -void -c3pixels_alloc( - c3pixels_p p ); - -//! Get a pixel address -static inline void * -c3pixels_get( - c3pixels_p p, - int x, int y) -{ - return ((uint8_t*)p->base) + (y * p->row) + (x * p->psize); -} - -//! Zeroes the pixels -void -c3pixels_zero( - c3pixels_p p); - -IMPLEMENT_C_ARRAY(c3pixels_array); - -#endif /* __C3PIXELS_H___ */ diff --git a/examples/shared/libc3/src/c3program.c b/examples/shared/libc3/src/c3program.c deleted file mode 100644 index f045de8..0000000 --- a/examples/shared/libc3/src/c3program.c +++ /dev/null @@ -1,191 +0,0 @@ -/* - c3program.c - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - -#include -#include -#include -#include -#include -#include -#include - -#include "c3program.h" - -c3program_p -c3program_new( - const char * name, - const char ** uniforms ) -{ - c3program_p p = malloc(sizeof(*p)); - memset(p, 0, sizeof(*p)); - p->name = str_new(name); - - /* Allow specifying uniform names to make sure they are in - * the specified order in the array, this allow direct indexing - * instead of doign string lookup - */ - if (uniforms) { - for (int ui = 0; uniforms[ui]; ui++) { - c3program_param_t pa = { - .name = str_new(uniforms[ui]), - .program = p, - .index = p->params.count, - }; - c3program_param_array_add(&p->params, pa); - } - } - return p; -} - -void -c3program_dispose( - c3program_p p) -{ - c3program_purge(p); - for (int pi = 0; pi < p->params.count; pi++) { - c3program_param_p pa = &p->params.e[pi]; - str_free(pa->name); - } - c3program_param_array_free(&p->params); - str_free(p->name); - str_free(p->log); - free(p); -} - -void -c3program_purge( - c3program_p p) -{ - for (int si = 0; si < p->shaders.count; si++) { - c3shader_p s = &p->shaders.e[si]; - str_free(s->name); - str_free(s->shader); - } - c3shader_array_free(&p->shaders); -} - -c3program_param_p -c3program_locate_param( - c3program_p p, - const char * name ) -{ - for (int pi = 0; pi < p->params.count; pi++) - if (!strcmp(p->params.e[pi].name->str, name)) - return &p->params.e[pi]; - return NULL; -} - -int -c3program_load_shader( - c3program_p p, - uint32_t type, - const char * header, - const char * filename, - uint16_t flags) -{ - struct stat st; - str_p pgm = NULL; - - if (stat(filename, &st)) - goto error; - int fd = open(filename, O_RDONLY); - if (fd == -1) - goto error; - - int hlen = header ? strlen(header) : 0; - pgm = str_alloc(st.st_size + hlen); - if (header) - strcpy(pgm->str, header); - - if (read(fd, pgm->str + hlen, st.st_size) != st.st_size) - goto error; - close(fd); - pgm->str[pgm->len] = 0; // zero terminate it - - c3shader_t s = { - .type = type, - .name = str_new(filename), - .shader = pgm, - }; - c3shader_array_add(&p->shaders, s); - - if (flags & C3_PROGRAM_LOAD_UNIFORM) { - char * cur = pgm->str; - char * l; - - while ((l = strsep(&cur, "\r\n")) != NULL) { - while (*l && *l <= ' ') - l++; - str_p line = str_new(l); - if (cur) // fix the endline after strsep - *(cur-1) = '\n'; - if (strncmp(line->str, "uniform", 7)) - continue; - // printf("UNI: %s\n", line->str); - - char * sep = line->str; - char * uniform = strsep(&sep, " \t"); - char * unitype = strsep(&sep, " \t"); - char * uniname = strsep(&sep, " \t=;"); - /* - * found a parameter, extract it's type & name - */ - if (uniform && unitype && uniname) { - // trim semicolons etc - char *cl = uniname; - while (isalpha(*cl) || *cl == '_' || isdigit(*cl)) - cl++; - *cl = 0; - str_p name = str_new(uniname); - for (int pi = 0; pi < p->params.count && uniform; pi++) - if (!str_cmp(name, p->params.e[pi].name)) { - if (!p->params.e[pi].type) - p->params.e[pi].type = str_new(unitype); - uniform = NULL; // already there - } - if (uniform) { - c3program_param_t pa = { - .type = str_new(unitype), - .name = name, - .program = p, - .index = p->params.count, - }; - c3program_param_array_add(&p->params, pa); - if (p->verbose) - printf("%s %s: new parameter '%s' '%s'\n", __func__, - p->name->str, unitype, uniname); - } else - str_free(name); - } - str_free(line); - } - } - return p->shaders.count - 1; - -error: - if (fd != -1) - close(fd); - if (pgm) - str_free(pgm); - fprintf(stderr, "%s: %s: %s\n", __func__, filename, strerror(errno)); - return -1; - -} diff --git a/examples/shared/libc3/src/c3program.h b/examples/shared/libc3/src/c3program.h deleted file mode 100644 index 23d4b4f..0000000 --- a/examples/shared/libc3/src/c3program.h +++ /dev/null @@ -1,102 +0,0 @@ -/* - c3program.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3PROGRAM_H___ -#define __C3PROGRAM_H___ - -#include "c3types.h" -#include "c_utils.h" - -typedef struct c3shader_t { - c3apiobject_t sid; // shader id - uint32_t type; - str_p name; - str_p shader; -} c3shader_t, *c3shader_p; - -DECLARE_C_ARRAY(c3shader_t, c3shader_array, 4); - -typedef struct c3program_param_t { - struct c3program_t * program; - int index; // index number in paramerer array - c3apiobject_t pid; // parameter id - str_p type; - str_p name; -} c3program_param_t, *c3program_param_p; - -DECLARE_C_ARRAY(c3program_param_t, c3program_param_array, 4); - -typedef struct c3program_t { - c3apiobject_t pid; // program id - int verbose : 1; - str_p name; - c3shader_array_t shaders; - c3program_param_array_t params; - str_p log; // if an error occurs -} c3program_t, *c3program_p; - -DECLARE_C_ARRAY(c3program_p, c3program_array, 4); - -//! Allocates a new, empty program -/* if 'uniforms' is non null it is a NULL terminated array of - * uniform names to pre-add to the uniform array in the specified - * order. - * This make sure they are in the specified order in the array, - * to allow direct indexing instead of doing string lookup by name - */ -c3program_p -c3program_new( - const char * name, - const char ** uniforms /* optional */); - -//! disposes of a c3program memory -void -c3program_dispose( - c3program_p p); - -//! purge deletes the shader storage, but keep the program and parameters -void -c3program_purge( - c3program_p p); - -enum { - C3_PROGRAM_LOAD_UNIFORM = (1 << 0), -}; - -int -c3program_load_shader( - c3program_p p, - uint32_t type, - const char * header, - const char * filename, - uint16_t flags); - -c3program_param_p -c3program_locate_param( - c3program_p p, - const char * name ); - -IMPLEMENT_C_ARRAY(c3program_param_array); -IMPLEMENT_C_ARRAY(c3shader_array); -IMPLEMENT_C_ARRAY(c3program_array); - -#endif /* __C3PROGRAM_H___ */ diff --git a/examples/shared/libc3/src/c3quaternion.c b/examples/shared/libc3/src/c3quaternion.c deleted file mode 100644 index 894604e..0000000 --- a/examples/shared/libc3/src/c3quaternion.c +++ /dev/null @@ -1,249 +0,0 @@ -/* - c3quaternion.c - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - -#include -#include "c3quaternion.h" - -#ifndef DEG2RAD -#define DEG2RAD(x) ((x)/180.0*M_PI) -#define RAD2DEG(x) ((x)/M_PI*180.0) -#endif -#ifndef FUDGE -#define FUDGE .00001 -#endif - -c3quat -c3quat_new() -{ - return c3quat_identity(); -} - -/************************************************* c3quat_identity() *****/ -/* Returns quaternion identity element */ - -c3quat -c3quat_identity() -{ - return c3quat_vec3( c3vec3f( 0.0, 0.0, 0.0 ), 1.0 ); -} - -c3quat -c3quatf( - const c3f x, - const c3f y, - const c3f z, - const c3f w) -{ - c3quat q = { .v = c3vec3f(x,y,z), .s = w }; - return q; -} - -c3quat -c3quat_vec3( - const c3vec3 v, - const c3f s) -{ - c3quat q = { .v = v, .s = s }; - return q; -} - -c3quat -c3quat_vec4( - const c3vec4 v) -{ - c3quat q = { .v = c3vec3f(v.n[0], v.n[1], v.n[2]), .s = v.n[3] }; - return q; -} - -c3quat -c3quat_double( - const double *d) -{ - c3quat q; - q.v.n[0] = (c3f) d[0]; - q.v.n[1] = (c3f) d[1]; - q.v.n[2] = (c3f) d[2]; - q.s = (c3f) d[3]; - return q; -} - - -c3quat -c3quat_add( - const c3quat a, - const c3quat b) -{ - return c3quat_vec3(c3vec3_add(a.v, b.v), a.s + b.s ); -} - -c3quat -c3quat_sub( - const c3quat a, - const c3quat b) -{ - return c3quat_vec3(c3vec3_sub(a.v, b.v), a.s - b.s ); -} - -c3quat -c3quat_minus( - const c3quat a ) -{ - return c3quat_vec3(c3vec3_minus(a.v), -a.s); -} - -c3quat -c3quat_mul( - const c3quat a, - const c3quat b) -{ -// return c3quat( a.s*b.s - a.v*b.v, a.s*b.v + b.s*a.v + a.v^b.v ); - return c3quat_vec3( - c3vec3_add(c3vec3_mulf(b.v, a.s), c3vec3_add(c3vec3_mulf(a.v, b.s), c3vec3_cross(a.v, b.v))), - (a.s * b.s) - c3vec3_dot(a.v, b.v)); -} - -c3quat -c3quat_mulf( const c3quat a, const c3f t) -{ - return c3quat_vec3(c3vec3_mulf(a.v, t), a.s * t ); -} - -c3mat4 -c3quat_to_mat4( - const c3quat a ) -{ - c3f xs, ys, zs, wx, wy, wz, xx, xy, xz, yy, yz, zz; - - c3f t = 2.0f / (c3vec3_dot(a.v, a.v) + (a.s * a.s)); - - xs = a.v.n[VX]*t; ys = a.v.n[VY]*t; zs = a.v.n[VZ]*t; - wx = a.s*xs; wy = a.s*ys; wz = a.s*zs; - xx = a.v.n[VX]*xs; xy = a.v.n[VX]*ys; xz = a.v.n[VX]*zs; - yy = a.v.n[VY]*ys; yz = a.v.n[VY]*zs; zz = a.v.n[VZ]*zs; - - c3mat4 m = c3mat4_vec4( - c3vec4f(1.0f-(yy+zz), xy+wz, xz-wy, 0.0f), - c3vec4f(xy-wz, 1.0f-(xx+zz), yz+wx, 0.0f), - c3vec4f(xz+wy, yz-wx, 1.0f-(xx+yy), 0.0f), - c3vec4f(0.0f, 0.0f, 0.0f, 1.0f )); - - return m; -} - - -/************************************************ quat_slerp() ********/ -/* Quaternion spherical interpolation */ - -c3quat -quat_slerp( - const c3quat from, - const c3quat to, - c3f t) -{ - c3quat to1; - c3f omega, cosom, sinom, scale0, scale1; - - /* calculate cosine */ - cosom = c3vec3_dot(from.v, to.v) + from.s + to.s; - - /* Adjust signs (if necessary) */ - if (cosom < 0.0) { - cosom = -cosom; - to1 = c3quat_minus(to); - } else { - to1 = to; - } - - /* Calculate coefficients */ - if ((1.0 - cosom) > FUDGE ) { - /* standard case (slerp) */ - omega = (c3f) acos( cosom ); - sinom = (c3f) sin( omega ); - scale0 = (c3f) sin((1.0 - t) * omega) / sinom; - scale1 = (c3f) sin(t * omega) / sinom; - } else { - /* 'from' and 'to' are very close - just do linear interpolation */ - scale0 = 1.0f - t; - scale1 = t; - } - - return c3quat_add(c3quat_mulf(from, scale0), c3quat_mulf(to1, scale1)); -} - -/********************************************** set_angle() ************/ -/* set rot angle (degrees) */ - -c3quatp -c3quat_set_angle( - c3quatp a, - c3f f) -{ - c3vec3 axis = c3quat_get_axis(a); - - a->s = (c3f) cos( DEG2RAD( f ) / 2.0 ); - - a->v = c3vec3_mulf(axis, (c3f) sin(DEG2RAD(f) / 2.0)); - return a; -} - -/********************************************** scale_angle() ************/ -/* scale rot angle (degrees) */ - -c3quatp -c3quat_scale_angle( - c3quatp a, - c3f f) -{ - return c3quat_set_angle(a, f * c3quat_get_angle(a) ); -} - -/********************************************** get_angle() ************/ -/* get rot angle (degrees). Assumes s is between -1 and 1 */ - -c3f -c3quat_get_angle( - const c3quatp a) -{ - return (c3f) RAD2DEG( 2.0 * acos( a->s ) ); -} - -/********************************************* get_axis() **************/ - -c3vec3 -c3quat_get_axis( - c3quatp a) -{ - c3f scale = (c3f) sin( acos( a->s ) ); - - if ( scale < FUDGE && scale > -FUDGE ) - return c3vec3f( 0.0, 0.0, 0.0 ); - else - return c3vec3_divf(a->v, scale); -} - -/******************************************* c3quat_print() ************/ -#if 0 -void c3quat_print(FILE *dest, const char *name) const -{ - fprintf( dest, "%s: v:<%3.2f %3.2f %3.2f> s:%3.2f\n", - name, v[0], v[1], v[2], s ); -} -#endif diff --git a/examples/shared/libc3/src/c3quaternion.h b/examples/shared/libc3/src/c3quaternion.h deleted file mode 100644 index 89020ea..0000000 --- a/examples/shared/libc3/src/c3quaternion.h +++ /dev/null @@ -1,93 +0,0 @@ -/* - c3quaternion.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3QUATERNION_H___ -#define __C3QUATERNION_H___ - -#include -#include "c3algebra.h" - -typedef struct c3quat { - c3vec3 v; /* vector component */ - c3f s; /* scalar component */ -} c3quat, *c3quatp; - -c3quat -c3quat_new(); -c3quat -c3quat_identity(); - -c3quat -c3quatf( - const c3f x, - const c3f y, - const c3f z, - const c3f w); -c3quat -c3quat_vec3( - const c3vec3 v, - const c3f s); -c3quat -c3quat_vec4( - const c3vec4 v); - -c3quat -c3quat_double( - const double *d); - -c3quat -c3quat_add( - const c3quat a, - const c3quat b); -c3quat -c3quat_sub( - const c3quat a, - const c3quat b); -c3quat -c3quat_minus( - const c3quat a ); - -c3quat -c3quat_mul( - const c3quat a, - const c3quat b); - -c3mat4 -c3quat_to_mat4( - const c3quat a ); - -c3quatp -c3quat_set_angle( - c3quatp a, - c3f f); -c3quatp -c3quat_scale_angle( - c3quatp a, - c3f f); -c3f -c3quat_get_angle( - const c3quatp a); -c3vec3 -c3quat_get_axis( - c3quatp a); - -#endif /* __C3QUATERNION_H___ */ diff --git a/examples/shared/libc3/src/c3sphere.c b/examples/shared/libc3/src/c3sphere.c deleted file mode 100644 index 5a8db4c..0000000 --- a/examples/shared/libc3/src/c3sphere.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - c3sphere.c - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#include -#include "c3geometry.h" -#include "c3sphere.h" - -c3geometry_p -c3sphere_uv( - struct c3object_t * parent, - c3vec3 center, - c3f radius, - int rings, - int sectors ) -{ - float const R = 1. / (float) (rings - 1); - float const S = 1. / (float) (sectors - 1); - - c3geometry_p g = c3geometry_new(c3geometry_type(C3_SPHERE_TYPE, 0), parent); - - c3vertex_array_realloc(&g->vertice, rings * sectors); - c3vertex_array_realloc(&g->normals, rings * sectors); - c3tex_array_realloc(&g->textures, rings * sectors); - c3indices_array_realloc(&g->indices, rings * sectors * 6); - - for (int r = 0; r < rings; r++) - for (int s = 0; s < sectors; s++) { - float const y = sin(-M_PI_2 + M_PI * r * R); - float const x = cos(2 * M_PI * s * S) * sin(M_PI * r * R); - float const z = sin(2 * M_PI * s * S) * sin(M_PI * r * R); - - c3tex_array_add(&g->textures, c3vec2f(s * S, r * R)); - c3vertex_array_add(&g->vertice, - c3vec3_add(center, c3vec3f(x * radius, y * radius, z * radius))); - c3vertex_array_add(&g->normals, c3vec3_normalize(c3vec3f(x, y, z))); - } - - for (int r = 0; r < rings - 1; r++) - for (int s = 0; s < sectors - 1; s++) { - uint16_t i[6] = { - r * sectors + (s + 1), r * sectors + s, (r + 1) * sectors + (s + 1), - (r + 1) * sectors + (s + 1), r * sectors + s, (r + 1) * sectors + s, - }; - c3indices_array_insert(&g->indices, g->indices.count, i, 6); - } - return g; -} - diff --git a/examples/shared/libc3/src/c3sphere.h b/examples/shared/libc3/src/c3sphere.h deleted file mode 100644 index 84c1811..0000000 --- a/examples/shared/libc3/src/c3sphere.h +++ /dev/null @@ -1,40 +0,0 @@ -/* - c3sphere.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3SPHERE_H___ -#define __C3SPHERE_H___ - -#include "c3algebra.h" - -enum { - C3_SPHERE_TYPE = C3_TYPE('s','p','h','e'), -}; - -struct c3geometry_t * -c3sphere_uv( - struct c3object_t * parent, - c3vec3 center, - c3f radius, - int rings, - int sectors ); - -#endif /* __C3SPHERE_H___ */ diff --git a/examples/shared/libc3/src/c3stl.c b/examples/shared/libc3/src/c3stl.c deleted file mode 100644 index 9183f6d..0000000 --- a/examples/shared/libc3/src/c3stl.c +++ /dev/null @@ -1,128 +0,0 @@ -/* - c3stl.c - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - -#include -#include "c3algebra.h" -#include "c3geometry.h" -#include "c3object.h" -#include "c3stl.h" - -enum { - vertex_None = -1, - vertex_Vertex, - vertex_Normal, -}; - -static int -_c3stl_read_vertex( - char * vt, - c3vec3 * out ) -{ - int res = 1; - char *l = vt; - /*char * key =*/ strsep(&l, " \t"); - char * x = strsep(&l, " \t"); - char * y = strsep(&l, " \t"); - char * z = strsep(&l, " \t"); - - if (x) sscanf(x, "%f", out->n); - if (y) sscanf(y, "%f", out->n + 1); - if (z) sscanf(z, "%f", out->n + 2); -// printf("'%s' '%s' '%s' '%s' = %.2f %.2f %.2f\n", -// key, x, y, z, out->n[0], out->n[1], out->n[2]); - return res; -} - -struct c3object_t * -c3stl_load( - const char * filename, - c3object_p parent) -{ - FILE *f = fopen(filename, "r"); - if (!f) { - perror(filename); - return NULL; - } - - c3object_p o = c3object_new(parent); - c3geometry_p current_g = NULL; - o->name = str_new(filename); - - int state = 0; - while (!feof(f)) { - char line[256]; - - fgets(line, sizeof(line), f); - - int l = strlen(line); - while (l && line[l-1] < ' ') - line[--l] = 0; - if (!l) - continue; - char * keyword = line; - while (*keyword && *keyword <= ' ') - keyword++; - l = strlen(keyword); - // printf("%d>'%s'\n", state, keyword); - - switch (state) { - case 0: // - if (!strncmp(keyword, "solid ", 6)) { - char * n = keyword + 6; - current_g = c3geometry_new(c3geometry_type(C3_TRIANGLE_TYPE, 0), o); - current_g->name = str_new(n); - - state = 1; - } - break; - case 1: // - if (!strncmp(keyword, "facet ", 6)) { - c3vec3 normal; - _c3stl_read_vertex(keyword + 6, &normal); - normal = c3vec3_normalize(normal); - c3vertex_array_add(¤t_g->normals, normal); - c3vertex_array_add(¤t_g->normals, normal); - c3vertex_array_add(¤t_g->normals, normal); - state = 2; - } else if (!strncmp(keyword, "endsolid ", 9)) - state = 0; - break; - case 2: - if (!strncmp(keyword, "outer loop", 10)) - state = 3; - else if (!strncmp(keyword, "endfacet", 8)) - state = 1; - break; - case 3: - if (!strncmp(keyword, "vertex ", 7)) { - c3vec3 v; - _c3stl_read_vertex(keyword, &v); - c3vertex_array_add(¤t_g->vertice, v); - state = 3; - } else if (!strncmp(keyword, "endloop", 7)) - state = 2; - break; - } - } - - fclose(f); - return o; -} diff --git a/examples/shared/libc3/src/c3stl.h b/examples/shared/libc3/src/c3stl.h deleted file mode 100644 index 8f562cd..0000000 --- a/examples/shared/libc3/src/c3stl.h +++ /dev/null @@ -1,35 +0,0 @@ -/* - c3stl.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3STL_H___ -#define __C3STL_H___ - -/* - * Loads an ASCII (TODO: Load STL Binary?) STL file as a c3object with - * a set of c3geometries with the triangles - */ -struct c3object_t * -c3stl_load( - const char * filename, - struct c3object_t * parent); - -#endif /* __C3STL_H___ */ diff --git a/examples/shared/libc3/src/c3texture.c b/examples/shared/libc3/src/c3texture.c deleted file mode 100644 index e9e576d..0000000 --- a/examples/shared/libc3/src/c3texture.c +++ /dev/null @@ -1,113 +0,0 @@ -/* - c3texture.c - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#include -#include "c3texture.h" -#include "c3driver_geometry.h" - -void -_c3texture_dispose( - c3geometry_p g, - const c3driver_geometry_t * d) -{ -// c3texture_p t = (c3texture_p)g; - C3_DRIVER_INHERITED(g, d, dispose); -} - -void -_c3texture_project( - c3geometry_p g, - const c3driver_geometry_t * d, - c3mat4p m) -{ - c3texture_p t = (c3texture_p)g; - c3pixels_p p = t->geometry.mat.texture; - if (!p) { - C3_DRIVER_INHERITED(g, d, project, m); - return; - } - c3vec2 qs = c3vec2f( - t->size.x > 0 ? t->size.x : p->w, - t->size.y > 0 ? t->size.y : p->h); - c3vec3 v[4] = { - c3vec3f(0, 0, 0), c3vec3f(qs.x, 0, 0), - c3vec3f(qs.x, qs.y, 0), c3vec3f(0, qs.y, 0) - }; - c3vertex_array_clear(&g->vertice); - c3vertex_array_realloc(&g->vertice, 4); - c3vertex_array_insert(&g->vertice, 0, v, 4); - - c3f tw = p->normalize ? 1.0 : p->w, - th = p->normalize ? 1.0 : p->h; - c3vec2 ti[4] = { - c3vec2f(0, th), c3vec2f(tw, th), - c3vec2f(tw, 0), c3vec2f(0, 0) - }; - if (p->trace) - printf("%s size %.0fx%.0f tex %.0fx%.0f\n", __func__, qs.x, qs.y, tw, th); - c3tex_array_clear(&t->geometry.textures); - c3tex_array_realloc(&t->geometry.textures, 4); - c3tex_array_insert(&t->geometry.textures, 0, ti, 4); - - C3_DRIVER_INHERITED(g, d, project, m); -} - -const c3driver_geometry_t c3texture_driver = { - .dispose = _c3texture_dispose, - .project = _c3texture_project, -}; -extern const c3driver_geometry_t c3geometry_driver; - -c3texture_p -c3texture_new( - struct c3object_t * o /* = NULL */) -{ - c3texture_p res = malloc(sizeof(*res)); - return c3texture_init(res, o); -} - -c3texture_p -c3texture_init( - c3texture_p t, - struct c3object_t * o /* = NULL */) -{ - memset(t, 0, sizeof(*t)); - c3geometry_init(&t->geometry, - c3geometry_type(C3_TEXTURE_TYPE, 0 /* GL_TRIANGLE_FAN */), - o); - static const c3driver_geometry_t * list[] = { - &c3texture_driver, &c3geometry_driver, NULL, - }; - t->geometry.driver = list; - - return t; -} - -void -c3texture_resize( - c3texture_p t, - c3vec2 size ) -{ - t->size = size; - t->geometry.dirty = 1; - c3geometry_set_dirty(&t->geometry, 1); -} diff --git a/examples/shared/libc3/src/c3texture.h b/examples/shared/libc3/src/c3texture.h deleted file mode 100644 index 6ef1477..0000000 --- a/examples/shared/libc3/src/c3texture.h +++ /dev/null @@ -1,50 +0,0 @@ -/* - c3texture.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3TEXTURE_H___ -#define __C3TEXTURE_H___ - -#include "c3geometry.h" -#include "c3pixels.h" - -enum { - C3_TEXTURE_TYPE = C3_TYPE('t','e','x','u'), -}; - -typedef struct c3texture_t { - c3geometry_t geometry; - c3vec2 size; // quad size -} c3texture_t, *c3texture_p; - -c3texture_p -c3texture_new( - struct c3object_t * parent /* = NULL */); -c3texture_p -c3texture_init( - c3texture_p t, - struct c3object_t * parent /* = NULL */); -void -c3texture_resize( - c3texture_p t, - c3vec2 size ); - -#endif /* __C3TEXTURE_H___ */ diff --git a/examples/shared/libc3/src/c3transform.c b/examples/shared/libc3/src/c3transform.c deleted file mode 100644 index de442aa..0000000 --- a/examples/shared/libc3/src/c3transform.c +++ /dev/null @@ -1,63 +0,0 @@ -/* - c3transform.c - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#include "c3object.h" - -c3transform_p -c3transform_new( - c3object_p o ) -{ - c3transform_p res = malloc(sizeof(*res)); - res->matrix = identity3D(); - res->object = o; - res->name = NULL; - c3transform_array_add(&o->transform, res); - return res; -} - -void -c3transform_dispose( - c3transform_p t ) -{ - if (t->object) { - for (int oi = 0; oi < t->object->transform.count; oi++) - if (t->object->transform.e[oi] == t) { - c3transform_array_delete(&t->object->transform, oi, 1); - c3object_set_dirty(t->object, true); - break; - } - t->object = NULL; - } - str_free(t->name); - free(t); -} - -void -c3transform_set( - c3transform_p t, - const c3mat4p m ) -{ - if (c3mat4_equal(m, &t->matrix)) - return; - t->matrix = *m; - c3object_set_dirty(t->object, true); -} diff --git a/examples/shared/libc3/src/c3transform.h b/examples/shared/libc3/src/c3transform.h deleted file mode 100644 index b6b4289..0000000 --- a/examples/shared/libc3/src/c3transform.h +++ /dev/null @@ -1,49 +0,0 @@ -/* - c3transform.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3TRANSFORM_H___ -#define __C3TRANSFORM_H___ - -#include "c3algebra.h" -#include "c_utils.h" - -typedef struct c3transform_t { - str_p name; - struct c3object_t * object; - c3mat4 matrix; -} c3transform_t, *c3transform_p; - -c3transform_p -c3transform_new( - struct c3object_t * o ); -void -c3transform_set( - c3transform_p t, - c3mat4p m ); -void -c3transform_dispose( - c3transform_p t ); - -DECLARE_C_ARRAY(c3transform_p, c3transform_array, 4); -IMPLEMENT_C_ARRAY(c3transform_array); - -#endif /* __C3TRANSFORM_H___ */ diff --git a/examples/shared/libc3/src/c3types.h b/examples/shared/libc3/src/c3types.h deleted file mode 100644 index 0c0c8ca..0000000 --- a/examples/shared/libc3/src/c3types.h +++ /dev/null @@ -1,45 +0,0 @@ -/* - c3types.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#ifndef __C3TYPES_H___ -#define __C3TYPES_H___ - -#include -#include "c3algebra.h" - -typedef c3vec3 c3vertex_t, *c3vertex_p; -typedef c3vec4 c3colorf_t, *c3colorf_p; -typedef c3vec2 c3tex_t, *c3tex_p; -typedef uint16_t c3index_t, *c3index_p; - -/* this type is used to store an API object (texture id etc - * it is made to force a cast in most cases as OpenGL uses integers - * for object ids - */ -typedef void * c3apiobject_t; - -//! Bounding box -typedef struct c3bbox_t { - c3vec3 min, max; -} c3bbox_t; - -#endif /* __C3TYPES_H___ */ diff --git a/examples/shared/libc3/src/c_array.h b/examples/shared/libc3/src/c_array.h deleted file mode 100644 index ea974fc..0000000 --- a/examples/shared/libc3/src/c_array.h +++ /dev/null @@ -1,137 +0,0 @@ -/* - c_array.h - - Copyright 2012 Michel Pollet - - This file is part of gcodepp. - - gcodepp is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - gcodepp is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with gcodepp. If not, see . - */ - - -#ifndef __C_ARRAY_H___ -#define __C_ARRAY_H___ - -#include -#include -#include - -#ifndef C_ARRAY_INLINE -#define C_ARRAY_INLINE inline -#endif -#ifndef C_ARRAY_SIZE_TYPE -#define C_ARRAY_SIZE_TYPE uint32_t -#endif - -#define DECLARE_C_ARRAY(__type, __name, __page, __args...) \ -enum { __name##_page_size = __page }; \ -typedef __type __name##_element_t; \ -typedef C_ARRAY_SIZE_TYPE __name##_count_t; \ -typedef struct __name##_t {\ - volatile __name##_count_t count;\ - volatile __name##_count_t size;\ - __name##_element_t * e;\ - __args ;\ -} __name##_t, *__name##_p; - -#define C_ARRAY_NULL { 0, 0, NULL } - -#define IMPLEMENT_C_ARRAY(__name) \ -static const __name##_t __name##_zero = C_ARRAY_NULL; \ -static C_ARRAY_INLINE \ - void __name##_free(\ - __name##_p a) \ -{\ - if (!a) return;\ - if (a->e) free(a->e);\ - a->count = a->size = 0;\ - a->e = NULL;\ -}\ -static C_ARRAY_INLINE \ - void __name##_clear(\ - __name##_p a) \ -{\ - if (!a) return;\ - a->count = 0;\ -}\ -static C_ARRAY_INLINE \ - void __name##_realloc(\ - __name##_p a, __name##_count_t size) \ -{\ - if (!a || a->size == size) return; \ - if (size == 0) { if (a->e) free(a->e); a->e = NULL; } \ - else a->e = realloc(a->e, size * sizeof(__name##_element_t));\ - a->size = size; \ -}\ -static C_ARRAY_INLINE \ - void __name##_trim(\ - __name##_p a) \ -{\ - if (!a) return;\ - __name##_count_t n = a->count + __name##_page_size;\ - n -= (n % __name##_page_size);\ - if (n != a->size)\ - __name##_realloc(a, n);\ -}\ -static C_ARRAY_INLINE \ - __name##_element_t * __name##_get_ptr(\ - __name##_p a, __name##_count_t index) \ -{\ - if (!a) return NULL;\ - if (index > a->count) index = a->count;\ - return index < a->count ? a->e + index : NULL;\ -}\ -static C_ARRAY_INLINE \ - __name##_count_t __name##_add(\ - __name##_p a, __name##_element_t e) \ -{\ - if (!a) return 0;\ - if (a->count + 1 >= a->size)\ - __name##_realloc(a, a->size + __name##_page_size);\ - a->e[a->count++] = e;\ - return a->count;\ -}\ -static C_ARRAY_INLINE \ - __name##_count_t __name##_insert(\ - __name##_p a, __name##_count_t index, \ - __name##_element_t * e, __name##_count_t count) \ -{\ - if (!a) return 0;\ - if (index > a->count) index = a->count;\ - if (a->count + count >= a->size) \ - __name##_realloc(a, (((a->count + count) / __name##_page_size)+1) * __name##_page_size);\ - if (index < a->count)\ - memmove(&a->e[index + count], &a->e[index], \ - (a->count - index + count) * sizeof(__name##_element_t));\ - memmove(&a->e[index], e, count * sizeof(__name##_element_t));\ - a->count += count;\ - return a->count;\ -}\ -static C_ARRAY_INLINE \ - __name##_count_t __name##_delete(\ - __name##_p a, __name##_count_t index, __name##_count_t count) \ -{\ - if (!a) return 0;\ - if (index > a->count) index = a->count;\ - if (index + count > a->count) \ - count = a->count - index;\ - if (count && a->count - index) { \ - memmove(&a->e[index], &a->e[index + count], \ - (a->count - index - count) * sizeof(__name##_element_t));\ - }\ - a->count -= count;\ - return a->count;\ -} - -#endif /* __C_ARRAY_H___ */ diff --git a/examples/shared/libc3/src/c_utils.c b/examples/shared/libc3/src/c_utils.c deleted file mode 100644 index 0a086de..0000000 --- a/examples/shared/libc3/src/c_utils.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - c_utils.c - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - libc3 is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - libc3 is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with libc3. If not, see . - */ - - -#include "c_utils.h" - -void -str_hash_init(str_hash_p h) -{ - memset(h, 0, sizeof(*h)); -} - -void -str_hash_add( - str_hash_p h, - str_p k, - void * v) -{ - uint16_t hv = str_hash(k); - hashval_array_p bin = &h->bin[hv & (STR_HASH_SIZE-1)]; - int inserti = bin->count; - - for (int i = 0; i < bin->count; i++) - if (bin->e[i].key->hash >= hv) { - inserti = i; - break; - } - str_hashval_t n = { .key = str_dup(k), .val = v }; - hashval_array_insert(bin, inserti, &n, 1); - return; -} - -void * -str_hash_lookup( - str_hash_p h, - str_p k ) -{ - uint16_t hv = str_hash(k); - hashval_array_p bin = &h->bin[hv & (STR_HASH_SIZE-1)]; - - for (int i = 0; i < bin->count; i++) { - uint16_t h = bin->e[i].key->hash; - if (h == hv && !str_cmp(k, bin->e[i].key)) - return bin->e[i].val; - else if (h > hv) - break; - } - return NULL; -} diff --git a/examples/shared/libc3/src/c_utils.h b/examples/shared/libc3/src/c_utils.h deleted file mode 100644 index d9eb074..0000000 --- a/examples/shared/libc3/src/c_utils.h +++ /dev/null @@ -1,177 +0,0 @@ -/* - c_utils.h - - Copyright 2008-11 Michel Pollet - - This program cross examines a root filesystem, loads all the elf - files it can find, see what other library they load and then - find the orphans. In then remove the orphans as "user" for it's - dependencies and continues removing until everything has at least - one user, OR is a program itself (ie, not a shared library) - - cross_linker is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - cross_linker is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with cross_linker. If not, see . - */ - -#ifndef __C_UTILS_H__ -#define __C_UTILS_H__ - -#ifndef NO_ALLOCA -#include -#endif -#include "c_array.h" - -/******************************************************************** - * CRC16 - ********************************************************************/ - -static uint8_t _crc16_lh[16] = { 0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, - 0x70, 0x81, 0x91, 0xA1, 0xB1, 0xC1, 0xD1, 0xE1, 0xF1 }; -static uint8_t _crc16_ll[16] = { 0x00, 0x21, 0x42, 0x63, 0x84, 0xA5, 0xC6, - 0xE7, 0x08, 0x29, 0x4A, 0x6B, 0x8C, 0xAD, 0xCE, 0xEF }; - -static uint16_t crc16_u4(uint16_t crc, uint8_t val) -{ - uint8_t h = crc >> 8, l = crc & 0xff; - uint8_t t = (h >> 4) ^ val; - - // Shift the CRC Register left 4 bits - h = (h << 4) | (l >> 4); - l = l << 4; - // Do the table lookups and XOR the result into the CRC Tables - h = h ^ _crc16_lh[t]; - l = l ^ _crc16_ll[t]; - return (h << 8) | l; -} - -static uint16_t crc16_update(uint16_t crc, uint8_t val) -{ - crc = crc16_u4(crc, val >> 4); // High nibble first - crc = crc16_u4(crc, val & 0x0F); // Low nibble - return crc; -} - -static uint16_t crc16_string(char * str) -{ - uint16_t crc = 0xffff; - while (*str) - crc = crc16_update(crc, *str++); - return crc; -} - -/******************************************************************** - * Hashed strings - ********************************************************************/ - -#include -typedef struct str_t { - uint32_t hash : 16, rom : 1, len : 15; - char str[0]; -} str_t, *str_p; - -static inline str_p str_alloc(size_t len) -{ - str_p r = (str_p)malloc(sizeof(*r) + len + 1); - r->rom = r->hash = 0; r->len = len; - return r; -} -static inline str_p str_new_i(const char *s, void * (*_alloc)(size_t)) -{ - int l = s ? strlen(s) : 0; - str_p r = (str_p)_alloc(sizeof(*r) + l + 1); - r->hash = 0; r->len = l; - if (s) - strcpy(r->str, s); - return r; -} -static inline void str_free(str_p s) -{ - if (s && !s->rom) - free(s); -} -static inline str_p str_new(const char *s) -{ - return str_new_i(s, malloc); -} -static inline str_p str_dup(const str_p s) -{ - size_t l = sizeof(*s) + s->len + 1; - str_p r = (str_p)malloc(l); - memcpy(r, s, l); - return r; -} -#ifndef NO_ALLOCA -static inline str_p str_anew(const char *s) -{ - str_p r = str_new_i(s, alloca); - r->rom = 1; - return r; -} -static inline str_p str_adup(const str_p s) -{ - size_t l = sizeof(*s) + s->len + 1; - str_p r = (str_p)alloca(l); - memcpy(r, s, l); - r->rom = 1; - return r; -} -#endif -static inline uint16_t str_hash(str_p s) -{ - if (!s->hash) s->hash = crc16_string(s->str); - return s->hash; -} -static inline int str_cmp(str_p s1, str_p s2) -{ - if (s1 == s2) return 1; - if (s1->len != s2->len) return 1; - str_hash(s1); - str_hash(s2); - return s1->hash == s2->hash ? strcmp(s1->str, s2->str) : 1; -} - -/******************************************************************** - * Hash table of strings. Key/value pair - ********************************************************************/ - -typedef struct str_hashval_t { - str_p key; - void * val; -} str_hashval_t; - -DECLARE_C_ARRAY(str_hashval_t, hashval_array, 16); -IMPLEMENT_C_ARRAY(hashval_array); - -#ifndef STR_HASH_SIZE -#define STR_HASH_SIZE 512 // use 9 bits of the 16 of the CRC -#endif -/* uses bins to store the strings as per their hash values */ -typedef struct str_hash_t { - hashval_array_t bin[STR_HASH_SIZE]; -} str_hash_t, *str_hash_p; - -void -str_hash_init( - str_hash_p h); -void -str_hash_add( - str_hash_p h, - str_p k, - void * v); - -void * -str_hash_lookup( - str_hash_p h, - str_p k ); - -#endif /* __C_UTILS_H__ */ diff --git a/examples/shared/libc3/srcgl/c3gl.c b/examples/shared/libc3/srcgl/c3gl.c deleted file mode 100644 index 7eea09a..0000000 --- a/examples/shared/libc3/srcgl/c3gl.c +++ /dev/null @@ -1,426 +0,0 @@ -/* - c3gl.c - - Copyright 2008-2012 Michel Pollet - - This file is part of simavr. - - simavr is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - simavr is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with simavr. If not, see . - */ - -#if __APPLE__ -#define GL_GLEXT_PROTOTYPES -#include -#include -#include -#else -#define GL_GLEXT_PROTOTYPES -#include -#include -#include -#endif -#include - - -#include "c3.h" -#include "c3lines.h" -#include "c3sphere.h" -#include "c3light.h" -#include "c3program.h" - -#include "c3driver_context.h" - -#include "c3gl.h" - -#define GLCHECK(_w) {_w; dumpError(#_w);} - -static int dumpError(const char * what) -{ - GLenum e; - int count = 0; - while ((e = glGetError()) != GL_NO_ERROR) { - printf("%s: %s\n", what, gluErrorString(e)); - count++; - } - return count; -} - -int -c3gl_program_load( - c3program_p p) -{ - if (!p || p->pid || p->log) - return -1; - - if (p->verbose) - printf("%s loading %s\n", __func__, p->name->str); - for (int si = 0; si < p->shaders.count && !p->log; si++) { - c3shader_p s = &p->shaders.e[si]; - - if (p->verbose) - printf("%s compiling shader %s\n", __func__, s->name->str); - - s->sid = (c3apiobject_t)glCreateShader(s->type); - const GLchar * pgm = s->shader->str; - glShaderSource((GLuint)s->sid, 1, &pgm, NULL); - - glCompileShader((GLuint)s->sid); - - GLint status; - glGetShaderiv((GLuint)s->sid, GL_COMPILE_STATUS, &status); - - if (status != GL_FALSE) - continue; - - GLint infoLogLength; - glGetShaderiv((GLuint)s->sid, GL_INFO_LOG_LENGTH, &infoLogLength); - - p->log = str_alloc(infoLogLength); - glGetShaderInfoLog((GLuint)s->sid, infoLogLength, NULL, p->log->str); - - fprintf(stderr, "%s compile %s: %s\n", __func__, s->name->str, p->log->str); - break; - } - if (p->log) - return -1; - p->pid = (c3apiobject_t)glCreateProgram(); - - for (int si = 0; si < p->shaders.count && !p->log; si++) { - c3shader_p s = &p->shaders.e[si]; - - glAttachShader((GLuint)p->pid, (GLuint)s->sid); - } - glLinkProgram((GLuint)p->pid); - - GLint status; - glGetProgramiv((GLuint)p->pid, GL_LINK_STATUS, &status); - - for (int si = 0; si < p->shaders.count && !p->log; si++) { - c3shader_p s = &p->shaders.e[si]; - - glDetachShader((GLuint)p->pid, (GLuint)s->sid); - glDeleteShader((GLuint)s->sid); - s->sid = 0; - } - - if (status == GL_FALSE) { - GLint infoLogLength; - glGetProgramiv((GLuint)p->pid, GL_INFO_LOG_LENGTH, &infoLogLength); - - p->log = str_alloc(infoLogLength); - - glGetProgramInfoLog((GLuint)p->pid, infoLogLength, NULL, p->log->str); - fprintf(stderr, "%s link %s: %s\n", __func__, p->name->str, p->log->str); - - goto error; - } - for (int pi = 0; pi < p->params.count; pi++) { - c3program_param_p pa = &p->params.e[pi]; - pa->pid = (c3apiobject_t)glGetUniformLocation((GLuint)p->pid, pa->name->str); - if (pa->pid == (c3apiobject_t)-1) { - fprintf(stderr, "%s %s: parameter '%s' not found\n", - __func__, p->name->str, pa->name->str); - } else - if (p->verbose) - printf("%s %s load parameter [%d]'%s'=%d\n", __func__, - p->name->str, pi, pa->name->str, - (int)pa->pid); - } - - c3program_purge(p); - return 0; -error: - c3program_purge(p); - if (p->pid) - glDeleteProgram((GLuint)p->pid); - p->pid = 0; - return -1; -} - -static void -_c3_load_pixels( - c3pixels_p pix) -{ - GLuint mode = pix->normalize ? GL_TEXTURE_2D : GL_TEXTURE_RECTANGLE_ARB; - if (!pix->texture) { - if (pix->trace) - printf("%s Creating texture %s %dx%d\n", - __func__, pix->name ? pix->name->str : "", pix->w, pix->h); - pix->dirty = 1; - GLuint texID = 0; - GLCHECK(glEnable(mode)); - - glGenTextures(1, &texID); -// glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, -// GL_MODULATE); //set texture environment parameters -// dumpError("glTexEnvf"); - - glPixelStorei(GL_UNPACK_ROW_LENGTH, pix->row / pix->psize); - GLCHECK(glTexParameteri(mode, GL_TEXTURE_MAG_FILTER, GL_LINEAR)); - GLCHECK(glTexParameteri(mode, GL_TEXTURE_MIN_FILTER, - pix->normalize ? GL_LINEAR_MIPMAP_LINEAR : GL_LINEAR)); - GLCHECK(glTexParameteri(mode, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER)); - GLCHECK(glTexParameteri(mode, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER)); - if (pix->normalize) - GLCHECK(glTexParameteri(mode, GL_GENERATE_MIPMAP, GL_TRUE)); - #if 1 - GLfloat fLargest; - glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &fLargest); - //printf("fLargest = %f\n", fLargest); - GLCHECK(glTexParameterf(mode, GL_TEXTURE_MAX_ANISOTROPY_EXT, fLargest)); - #endif - if (pix->normalize) - GLCHECK(glGenerateMipmap(mode)); - - pix->texture = (c3apiobject_t)texID; - pix->dirty = 1; - } - if (pix->dirty) { - pix->dirty = 0; - GLCHECK(glBindTexture(mode, (GLuint)pix->texture)); - glTexImage2D(mode, 0, - pix->format == C3PIXEL_A ? GL_ALPHA16 : GL_RGBA8, - pix->w, pix->h, 0, - pix->format == C3PIXEL_A ? GL_ALPHA : GL_BGRA, - GL_UNSIGNED_BYTE, - pix->base); - dumpError("glTexImage2D"); - if (pix->normalize) - GLCHECK(glGenerateMipmap(mode)); - } -} - -static void -_c3_create_buffer( - GLuint name, - GLuint bufferType, - void * data, - size_t dataSize, - GLuint * out) -{ - GLuint bid; - glGenBuffers(1, &bid); - - GLCHECK(glBindBuffer(GL_ARRAY_BUFFER, bid)); - GLCHECK(glBufferData(GL_ARRAY_BUFFER, - dataSize, - data, - bufferType)); - GLCHECK(glEnableClientState(name)); -} - -static void -_c3_load_vbo( - c3geometry_p g) -{ - if (!g->vertice.count) - return ; - if (!g->bid) { - GLuint vao; - glGenVertexArrays(1, &vao); - g->bid = (c3apiobject_t)vao; - } - glBindVertexArray((GLuint)g->bid); - - /* - * Use 'realloc' on the array as it frees the data, but leaves 'count' - * unchanged. We neec that for the vertices and the indexes, the others - * can have a straight free() - */ - if (!g->vertice.buffer.bid && g->vertice.count) { - GLuint bid; - - _c3_create_buffer(GL_VERTEX_ARRAY, - g->vertice.buffer.mutable ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW, - g->vertice.e, g->vertice.count * sizeof(g->vertice.e[0]), - &bid); - glVertexPointer(3, GL_FLOAT, 0, (void*)0); - g->vertice.buffer.bid = (c3apiobject_t)bid; - if (!g->vertice.buffer.mutable) - c3vertex_array_realloc(&g->vertice, 0); - g->vertice.buffer.dirty = 0; - } - if (!g->textures.buffer.bid && g->textures.count) { - GLuint bid; - - _c3_create_buffer(GL_TEXTURE_COORD_ARRAY, - g->textures.buffer.mutable ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW, - g->textures.e, g->textures.count * sizeof(g->textures.e[0]), - &bid); - glTexCoordPointer(2, GL_FLOAT, 0, (void*)0); - g->textures.buffer.bid = (c3apiobject_t)bid; - if (!g->textures.buffer.mutable) - c3tex_array_free(&g->textures); - g->textures.buffer.dirty = 0; - } - if (!g->normals.buffer.bid && g->normals.count) { - GLuint bid; - - _c3_create_buffer(GL_NORMAL_ARRAY, - g->normals.buffer.mutable ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW, - g->normals.e, g->normals.count * sizeof(g->normals.e[0]), - &bid); - glNormalPointer(GL_FLOAT, 0, (void*) 0); - g->normals.buffer.bid = (c3apiobject_t)bid; - if (!g->normals.buffer.mutable) - c3vertex_array_free(&g->normals); - g->normals.buffer.dirty = 0; - } - if (!g->colorf.buffer.bid && g->colorf.count) { - GLuint bid; - - _c3_create_buffer(GL_COLOR_ARRAY, - g->colorf.buffer.mutable ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW, - g->colorf.e, g->colorf.count * sizeof(g->colorf.e[0]), - &bid); - glColorPointer(4, GL_FLOAT, 0, (void*) 0); - g->colorf.buffer.bid = (c3apiobject_t)bid; - if (!g->colorf.buffer.mutable) - c3colorf_array_free(&g->colorf); - g->colorf.buffer.dirty = 0; - } - if (!g->indices.buffer.bid && g->indices.count) { - GLuint bid; - glGenBuffers(1, &bid); - - glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, bid); - glBufferData(GL_ELEMENT_ARRAY_BUFFER, - g->indices.count * sizeof(g->indices.e[0]), - g->indices.e, - g->indices.buffer.mutable ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW); - g->indices.buffer.bid = (c3apiobject_t)bid; - if (!g->indices.buffer.mutable) - c3indices_array_realloc(&g->indices, 0); - g->indices.buffer.dirty = 0; - } -} - -static void -_c3_geometry_project( - c3context_p c, - const struct c3driver_context_t * d, - c3geometry_p g, - c3mat4p m) -{ - if (g->mat.texture) - _c3_load_pixels(g->mat.texture); - if (g->mat.program) - c3gl_program_load(g->mat.program); - - switch(g->type.type) { - case C3_SPHERE_TYPE: - case C3_TRIANGLE_TYPE: - case C3_LINES_TYPE: - g->type.subtype = (c3apiobject_t)GL_TRIANGLES; - break; - case C3_TEXTURE_TYPE: { - if (g->mat.texture) - g->type.subtype = (c3apiobject_t)GL_TRIANGLE_FAN; - } break; - case C3_LIGHT_TYPE: { - c3light_p l = (c3light_p)g; - GLuint lid = GL_LIGHT0 + (int)l->light_id; - if (l->color.specular.w > 0) - glLightfv(lid, GL_SPECULAR, l->color.specular.n); - if (l->color.ambiant.w > 0) - glLightfv(lid, GL_AMBIENT, l->color.ambiant.n); - } break; - default: - break; - } - - _c3_load_vbo(g); -// _c3_update_vbo(g); - - glBindVertexArray(0); - C3_DRIVER_INHERITED(c, d, geometry_project, g, m); -} - -/* - * This id the meta function that draws a c3geometry. It looks for normals, - * indices, textures and so on and call the glDrawArrays - */ -static void -_c3_geometry_draw( - c3context_p c, - const struct c3driver_context_t *d, - c3geometry_p g ) -{ - c3mat4 eye = c3mat4_mul( - &g->object->world, - &c3context_view_get(g->object->context)->cam.mtx); - glLoadMatrixf(eye.n); - - switch(g->type.type) { - case C3_LIGHT_TYPE: { - c3light_p l = (c3light_p)g; - GLuint lid = GL_LIGHT0 + (int)l->light_id; - glLightfv(lid, GL_POSITION, l->position.n); - if (c3context_view_get(c)->type != C3_CONTEXT_VIEW_LIGHT) - glEnable(lid); - else - glDisable(lid); - } break; - } - if (!g->bid) { - C3_DRIVER_INHERITED(c, d, geometry_draw, g); - return; - } - glColor4fv(g->mat.color.n); - dumpError("glColor"); - - GLCHECK(glBindVertexArray((GLuint)g->bid)); - - glDisable(GL_TEXTURE_2D); - if (g->mat.texture) { - GLuint mode = g->mat.texture->normalize ? - GL_TEXTURE_2D : GL_TEXTURE_RECTANGLE_ARB; - glEnable(mode); - if (g->mat.texture->trace) - printf("%s uses texture %s (%d tex)\n", - __func__, g->mat.texture->name->str, g->textures.count); - // printf("tex mode %d texture %d\n", g->mat.mode, g->mat.texture); - dumpError("glEnable texture"); - glBindTexture(mode, (GLuint)g->mat.texture->texture); - dumpError("glBindTexture"); - } - if (g->mat.program) - GLCHECK(glUseProgram((GLuint)g->mat.program->pid)); - - if (g->indices.buffer.bid) { - GLCHECK(glDrawElements((GLuint)g->type.subtype, - g->indices.count, GL_UNSIGNED_SHORT, - (void*)NULL /*g->indices.e*/)); - } else { - glDrawArrays((GLuint)g->type.subtype, 0, g->vertice.count); - } - glBindVertexArray(0); - - if (g->mat.texture) - glDisable(g->mat.texture->normalize ? GL_TEXTURE_2D : GL_TEXTURE_RECTANGLE_ARB); - if (g->mat.program) - glUseProgram(0); - C3_DRIVER_INHERITED(c, d, geometry_draw, g); -} - -const c3driver_context_t c3context_driver = { - .geometry_project = _c3_geometry_project, - .geometry_draw = _c3_geometry_draw, -}; - -const struct c3driver_context_t * -c3gl_getdriver() -{ - return &c3context_driver; -} diff --git a/examples/shared/libc3/srcgl/c3gl.h b/examples/shared/libc3/srcgl/c3gl.h deleted file mode 100644 index 34ea262..0000000 --- a/examples/shared/libc3/srcgl/c3gl.h +++ /dev/null @@ -1,33 +0,0 @@ -/* - c3gl.h - - Copyright 2008-2012 Michel Pollet - - This file is part of simavr. - - simavr is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - simavr is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with simavr. If not, see . - */ - - -#ifndef __C3GL_H___ -#define __C3GL_H___ - -const struct c3driver_context_t * -c3gl_getdriver(); - -int -c3gl_program_load( - c3program_p p); - -#endif /* __C3GL_H___ */ diff --git a/examples/shared/libc3/srcgl/c3gl_fbo.c b/examples/shared/libc3/srcgl/c3gl_fbo.c deleted file mode 100644 index d139bed..0000000 --- a/examples/shared/libc3/srcgl/c3gl_fbo.c +++ /dev/null @@ -1,196 +0,0 @@ -/* - c3gl_fbo.c - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - simavr is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - simavr is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with simavr. If not, see . - */ - -#if __APPLE__ -#define GL_GLEXT_PROTOTYPES -#include -#include -#include -#else -#define GL_GLEXT_PROTOTYPES -#include -#include -#include -#endif -#include -#include - -#include "c3gl_fbo.h" - - -#define GLCHECK(_w) {_w; dumpError(#_w);} -static int dumpError(const char * what) -{ - GLenum e; - int count = 0; - while ((e = glGetError()) != GL_NO_ERROR) { - printf("%s: %s\n", what, gluErrorString(e)); - count++; - } - return count; -} - -int -c3gl_fbo_create( - c3gl_fbo_p b, - c3vec2 size, - uint32_t flags ) -{ - memset(b, 0, sizeof(*b)); - b->size = size; - b->flags = flags; - - /* Texture */ - GLCHECK(glActiveTexture(GL_TEXTURE0)); - - if (b->flags & (1 << C3GL_FBO_COLOR)) { - GLuint tex; - glGenTextures(1, &tex); - glBindTexture(GL_TEXTURE_2D, tex); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, - b->size.x, b->size.y, 0, - GL_RGBA, GL_UNSIGNED_BYTE, NULL); - glBindTexture(GL_TEXTURE_2D, 0); - b->buffers[C3GL_FBO_COLOR].bid = (c3apiobject_t)tex; - } - - /* Depth buffer */ - if (b->flags & (1 << C3GL_FBO_DEPTH)) { - GLuint rbo_depth; - GLCHECK(glGenRenderbuffers(1, &rbo_depth)); - glBindRenderbuffer(GL_RENDERBUFFER, rbo_depth); - GLCHECK(glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, - b->size.x, b->size.y)); - glBindRenderbuffer(GL_RENDERBUFFER, 0); - b->buffers[C3GL_FBO_DEPTH].bid = (c3apiobject_t)rbo_depth; - } - - if (b->flags & (1 << C3GL_FBO_DEPTH_TEX)) { - GLuint depthTextureId; - glGenTextures(1, &depthTextureId); - glBindTexture(GL_TEXTURE_2D, depthTextureId); - - // GL_LINEAR does not make sense for depth texture. However, next tutorial shows usage of GL_LINEAR and PCF. Using GL_NEAREST - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - - // Remove artefact on the edges of the shadowmap - glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP ); - glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP ); - - // This is to allow usage of shadow2DProj function in the shader - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL); - glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_TEXTURE_MODE, GL_INTENSITY); - - // No need to force GL_DEPTH_COMPONENT24, drivers usually give you the max precision if available - glTexImage2D( GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, - b->size.x, b->size.y, - 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, 0); - glBindTexture(GL_TEXTURE_2D, 0); - b->buffers[C3GL_FBO_DEPTH_TEX].bid = (c3apiobject_t)depthTextureId; - } - - /* Framebuffer to link everything together */ - GLuint fbo; - GLCHECK(glGenFramebuffers(1, &fbo)); - glBindFramebuffer(GL_FRAMEBUFFER, fbo); - - if (b->flags & (1 << C3GL_FBO_COLOR)) { - glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, - GL_TEXTURE_2D, (GLuint)b->buffers[C3GL_FBO_COLOR].bid, 0); - // Set the list of draw buffers. - GLenum DrawBuffers[2] = { GL_COLOR_ATTACHMENT0 }; - glDrawBuffers(1, DrawBuffers); // "1" is the size of DrawBuffers - } else { - glDrawBuffers(0, NULL); // "1" is the size of DrawBuffers - glDrawBuffer(GL_NONE); - glReadBuffer(GL_NONE); - } - - if (b->flags & (1 << C3GL_FBO_DEPTH)) - glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, - GL_RENDERBUFFER, (GLuint)b->buffers[C3GL_FBO_DEPTH].bid); - - if (b->flags & (1 << C3GL_FBO_DEPTH_TEX)) - // attach the texture to FBO depth attachment point - glFramebufferTexture2D(GL_FRAMEBUFFER_EXT, - GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, - (GLuint)b->buffers[C3GL_FBO_DEPTH_TEX].bid, 0); - - b->fbo = (c3apiobject_t)fbo; - - GLenum status; - if ((status = glCheckFramebufferStatus(GL_FRAMEBUFFER)) - != GL_FRAMEBUFFER_COMPLETE) { - fprintf(stderr, "%s: glCheckFramebufferStatus: error %d", __func__, (int)status); - return -1 ; - } - - glBindFramebuffer(GL_FRAMEBUFFER, 0); - return 0; -} - -void -c3gl_fbo_resize( - c3gl_fbo_p b, - c3vec2 size) -{ - b->size = size; -// Rescale FBO and RBO as well - if (b->flags & (1 << C3GL_FBO_COLOR)) { - glBindTexture(GL_TEXTURE_2D, (GLuint)b->buffers[C3GL_FBO_COLOR].bid); - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, - b->size.x, b->size.y, 0, - GL_RGBA, GL_UNSIGNED_BYTE, NULL); - glBindTexture(GL_TEXTURE_2D, 0); - } - - if (b->flags & (1 << C3GL_FBO_DEPTH)) { - glBindRenderbuffer(GL_RENDERBUFFER, (GLuint)b->buffers[C3GL_FBO_DEPTH].bid); - glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, - b->size.x, b->size.y); - glBindRenderbuffer(GL_RENDERBUFFER, 0); - } -} - -void -c3gl_fbo_dispose( - c3gl_fbo_p b ) -{ - /* free_resources */ - if (b->flags & (1 << C3GL_FBO_DEPTH)) { - GLuint bid = (GLuint)b->buffers[C3GL_FBO_DEPTH].bid; - glDeleteRenderbuffers(1, &bid); - } - if (b->flags & (1 << C3GL_FBO_COLOR)) { - GLuint bid = (GLuint)b->buffers[C3GL_FBO_COLOR].bid; - glDeleteTextures(1, &bid); - } - GLuint fbo = (GLuint)b->fbo; - glDeleteFramebuffers(1, &fbo); - memset(b, 0, sizeof(*b)); -} - diff --git a/examples/shared/libc3/srcgl/c3gl_fbo.h b/examples/shared/libc3/srcgl/c3gl_fbo.h deleted file mode 100644 index 4bebc84..0000000 --- a/examples/shared/libc3/srcgl/c3gl_fbo.h +++ /dev/null @@ -1,59 +0,0 @@ -/* - c3gl_fbo.h - - Copyright 2008-2012 Michel Pollet - - This file is part of libc3. - - simavr is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - simavr is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with simavr. If not, see . - */ - - -#ifndef __C3GL_FBO_H___ -#define __C3GL_FBO_H___ - -#include "c3types.h" - -enum { - C3GL_FBO_COLOR = 0, - C3GL_FBO_DEPTH, - C3GL_FBO_DEPTH_TEX, - C3GL_FBO_MAX, -}; - -typedef struct c3gl_fbo_t { - c3vec2 size; - uint32_t flags; - c3apiobject_t fbo; - struct { - c3apiobject_t bid; - // ... ? - } buffers[8]; -} c3gl_fbo_t, *c3gl_fbo_p; - - -int -c3gl_fbo_create( - c3gl_fbo_p b, - c3vec2 size, - uint32_t flags ); -void -c3gl_fbo_resize( - c3gl_fbo_p b, - c3vec2 size); -void -c3gl_fbo_dispose( - c3gl_fbo_p b ); - -#endif /* __C3GL_FBO_H___ */ -- 2.39.5