From 1d2a0a8eb394034b838f759678b2dca74d0de52e Mon Sep 17 00:00:00 2001
From: Michel Pollet <buserror@gmail.com>
Date: Fri, 15 Jun 2012 09:17:07 +0100
Subject: [PATCH] c3context: Make sure lights are 'drawn' first

Make sure the light pseudo geometries are always
at the top of the list

Signed-off-by: Michel Pollet <buserror@gmail.com>
---
 examples/shared/libc3/src/c3context.c |  7 +++++++
 examples/shared/libc3/src/c3context.h | 13 ++++++++-----
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/examples/shared/libc3/src/c3context.c b/examples/shared/libc3/src/c3context.c
index af8e901..e77122c 100644
--- a/examples/shared/libc3/src/c3context.c
+++ b/examples/shared/libc3/src/c3context.c
@@ -22,6 +22,7 @@
 #include <math.h>
 #include "c3context.h"
 #include "c3object.h"
+#include "c3light.h"
 #include "c3driver_context.h"
 
 c3context_p
@@ -45,6 +46,7 @@ c3context_init(
 			.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);
@@ -95,6 +97,10 @@ _c3_z_sorter(
 		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;
 }
@@ -158,3 +164,4 @@ c3context_draw(
 		c3geometry_draw(g);
 	}
 }
+
diff --git a/examples/shared/libc3/src/c3context.h b/examples/shared/libc3/src/c3context.h
index aac6be8..3bce667 100644
--- a/examples/shared/libc3/src/c3context.h
+++ b/examples/shared/libc3/src/c3context.h
@@ -30,16 +30,19 @@
 #include "c3camera.h"
 
 enum {
-	C3_CONTEXT_VIEW_EYE = 0,
+	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;
-	c3vec2		size;					// in pixels. for fbo/textures/window
+	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
+	c3mat4		projection;			// projection matrix
 
 	c3geometry_array_t	projected;
 	struct {
-- 
2.39.5