From 21205cf046922476737bb97feacd33bbabe01132 Mon Sep 17 00:00:00 2001
From: Michel Pollet <buserror@gmail.com>
Date: Sun, 3 Jun 2012 17:25:41 +0100
Subject: [PATCH] libc3: Update

Minor update

Signed-off-by: Michel Pollet <buserror@gmail.com>
---
 examples/board_reprap/src/reprap_gl.c | 18 ++++++++++--------
 examples/shared/libc3/src/c3camera.c  |  4 ++--
 examples/shared/libc3/src/c3program.c | 26 +++++++++++++++++++++++---
 examples/shared/libc3/src/c3program.h |  7 +++++--
 4 files changed, 40 insertions(+), 15 deletions(-)

diff --git a/examples/board_reprap/src/reprap_gl.c b/examples/board_reprap/src/reprap_gl.c
index 12a6cdc..08435d1 100644
--- a/examples/board_reprap/src/reprap_gl.c
+++ b/examples/board_reprap/src/reprap_gl.c
@@ -46,15 +46,18 @@
 
 #include <cairo/cairo.h>
 
+#define FBO 1
+
 struct cairo_surface_t;
 
 int _w = 800, _h = 600;
-//c3cam cam;
-c3context_p c3;
-c3context_p hud;
-c3object_p head;
-c3texture_p fbo_c3;
-c3program_p fxaa = NULL;
+
+c3context_p c3 = NULL;
+c3context_p hud = NULL;
+
+c3object_p head = NULL; 	// hotend
+c3texture_p fbo_c3;			// frame buffer object texture
+c3program_p fxaa = NULL;	// full screen antialias shader
 
 int glsl_version = 110;
 
@@ -262,6 +265,7 @@ _c3_load_program(
     for (int pi = 0; pi < p->params.count; pi++) {
     	c3program_param_p pa = &p->params.e[pi];
     	pa->pid = glGetUniformLocation(p->pid, pa->name->str);
+    	printf("%s %s load parameter '%s'\n", __func__, p->name->str, pa->name->str);
     	if (pa->pid == -1) {
     		fprintf(stderr, "%s %s: parameter '%s' not found\n",
     				__func__, p->name->str, pa->name->str);
@@ -418,8 +422,6 @@ const c3driver_context_t c3context_driver = {
 		.geometry_draw = _c3_geometry_draw,
 };
 
-#define FBO 1
-
 static void
 _gl_display_cb(void)		/* function called whenever redisplay needed */
 {
diff --git a/examples/shared/libc3/src/c3camera.c b/examples/shared/libc3/src/c3camera.c
index 29f9844..64abd60 100644
--- a/examples/shared/libc3/src/c3camera.c
+++ b/examples/shared/libc3/src/c3camera.c
@@ -20,7 +20,7 @@
 	along with simavr.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-
+#include <string.h>
 #include "c3camera.h"
 
 
@@ -376,7 +376,7 @@ void
 c3cam_init(
 		c3cam_p c)
 {
-	c3cam_reset(&c);
+	c3cam_reset(c);
 }
 
 void
diff --git a/examples/shared/libc3/src/c3program.c b/examples/shared/libc3/src/c3program.c
index c91acf1..e7c7998 100644
--- a/examples/shared/libc3/src/c3program.c
+++ b/examples/shared/libc3/src/c3program.c
@@ -24,6 +24,7 @@
 #include <unistd.h>
 #include <stdio.h>
 #include <errno.h>
+#include <ctype.h>
 #include <fcntl.h>
 
 #include "c3program.h"
@@ -40,16 +41,29 @@ c3program_new(
 
 void
 c3program_dispose(
-		const char * name)
+		c3program_p p)
 {
-	// TODO: implement c3program_dispose
+	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)
 {
-	// TODO: implement c3program_purge
+	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);
 }
 
 int
@@ -108,6 +122,11 @@ c3program_load_shader(
 			 * found a parameter, extract it's type & name
 			 */
 			if (uniform && unitype && uniname) {
+				// trim semicolons etc
+				char *cl = uniname;
+				while (isalpha(*cl) || *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))
@@ -116,6 +135,7 @@ c3program_load_shader(
 					c3program_param_t pa = {
 							.type = str_new(unitype),
 							.name = name,
+							.program = p,
 					};
 					c3program_param_array_add(&p->params, pa);
 					printf("%s %s: new parameter '%s' '%s'\n", __func__,
diff --git a/examples/shared/libc3/src/c3program.h b/examples/shared/libc3/src/c3program.h
index c709580..dfc6060 100644
--- a/examples/shared/libc3/src/c3program.h
+++ b/examples/shared/libc3/src/c3program.h
@@ -30,12 +30,12 @@ typedef struct c3shader_t {
 	uint32_t type;
 	str_p	name;
 	str_p	shader;
-	str_p	log;
 } c3shader_t, *c3shader_p;
 
 DECLARE_C_ARRAY(c3shader_t, c3shader_array, 4);
 
 typedef struct c3program_param_t {
+	struct c3program_t * program;
 	int32_t pid;	// parameter id
 	str_p	type;
 	str_p	name;
@@ -53,14 +53,17 @@ typedef struct c3program_t {
 
 DECLARE_C_ARRAY(c3program_p, c3program_array, 4);
 
+//! Allocates a new, empty program
 c3program_p
 c3program_new(
 		const char * name);
 
+//! disposes of a c3program memory
 void
 c3program_dispose(
-		const char * name);
+		c3program_p p);
 
+//! purge deletes the shader storage, but keep the program and parameters
 void
 c3program_purge(
 		c3program_p p);
-- 
2.39.5