immediate mode: using texture shader for stereo drawing

(for side-by-side and top-bottom stereo modes)

1 files changed, 43 insertions, 22 deletions

diff --git a/source/blender/windowmanager/intern/wm_stereo.c b/source/blender/windowmanager/intern/wm_stereo.c
index 1c1c2ad35af..ea9a09d1a34 100644
--- a/source/blender/windowmanager/intern/wm_stereo.c
+++ b/source/blender/windowmanager/intern/wm_stereo.c
@@ -54,6 +54,7 @@
 
 #include "GPU_glew.h"
 #include "GPU_basic_shader.h"
+#include "GPU_immediate.h"
 
 #include "WM_api.h"
 #include "WM_types.h"
@@ -203,23 +204,33 @@ static void wm_method_draw_stereo3d_sidebyside(wmWindow *win)
 			halfy /= triple->y;
 		}
 
+		VertexFormat *format = immVertexFormat();
+		unsigned texcoord = add_attrib(format, "texcoord", GL_FLOAT, 2, KEEP_FLOAT);
+		unsigned pos = add_attrib(format, "position", GL_FLOAT, 2, KEEP_FLOAT);
+
 		glEnable(triple->target);
+		immBindBuiltinProgram((triple->target == GL_TEXTURE_2D) ? GPU_SHADER_2D_TEXTURE_2D : GPU_SHADER_2D_TEXTURE_RECT);
+
 		glBindTexture(triple->target, triple->bind);
 
-		glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
-		glBegin(GL_QUADS);
-		glTexCoord2f(halfx, halfy);
-		glVertex2f(soffx, 0);
+		immUniform1i("texture_map", 0);
+
+		immBegin(GL_QUADS, 4);
+
+		immAttrib2f(texcoord, halfx, halfy);
+		immVertex2f(pos, soffx, 0.0f);
+
+		immAttrib2f(texcoord, ratiox + halfx, halfy);
+		immVertex2f(pos, soffx + (sizex * 0.5f), 0.0f);
 
-		glTexCoord2f(ratiox + halfx, halfy);
-		glVertex2f(soffx + (sizex * 0.5f), 0);
+		immAttrib2f(texcoord, ratiox + halfx, ratioy + halfy);
+		immVertex2f(pos, soffx + (sizex * 0.5f), sizey);
 
-		glTexCoord2f(ratiox + halfx, ratioy + halfy);
-		glVertex2f(soffx + (sizex * 0.5f), sizey);
+		immAttrib2f(texcoord, halfx, ratioy + halfy);
+		immVertex2f(pos, soffx, sizey);
 
-		glTexCoord2f(halfx, ratioy + halfy);
-		glVertex2f(soffx, sizey);
-		glEnd();
+		immEnd();
+		immUnbindProgram();
 
 		glBindTexture(triple->target, 0);
 		glDisable(triple->target);
@@ -262,23 +273,33 @@ static void wm_method_draw_stereo3d_topbottom(wmWindow *win)
 			halfy /= triple->y;
 		}
 
+		VertexFormat *format = immVertexFormat();
+		unsigned texcoord = add_attrib(format, "texcoord", GL_FLOAT, 2, KEEP_FLOAT);
+		unsigned pos = add_attrib(format, "position", GL_FLOAT, 2, KEEP_FLOAT);
+
 		glEnable(triple->target);
+		immBindBuiltinProgram((triple->target == GL_TEXTURE_2D) ? GPU_SHADER_2D_TEXTURE_2D : GPU_SHADER_2D_TEXTURE_RECT);
+
 		glBindTexture(triple->target, triple->bind);
 
-		glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
-		glBegin(GL_QUADS);
-		glTexCoord2f(halfx, halfy);
-		glVertex2f(0, soffy);
+		immUniform1i("texture_map", 0);
+
+		immBegin(GL_QUADS, 4);
+
+		immAttrib2f(texcoord, halfx, halfy);
+		immVertex2f(pos, 0.0f, soffy);
+
+		immAttrib2f(texcoord, ratiox + halfx, halfy);
+		immVertex2f(pos, sizex, soffy);
 
-		glTexCoord2f(ratiox + halfx, halfy);
-		glVertex2f(sizex, soffy);
+		immAttrib2f(texcoord, ratiox + halfx, ratioy + halfy);
+		immVertex2f(pos, sizex, soffy + (sizey * 0.5f));
 
-		glTexCoord2f(ratiox + halfx, ratioy + halfy);
-		glVertex2f(sizex, soffy + (sizey * 0.5f));
+		immAttrib2f(texcoord, halfx, ratioy + halfy);
+		immVertex2f(pos, 0.0f, soffy + (sizey * 0.5f));
 
-		glTexCoord2f(halfx, ratioy + halfy);
-		glVertex2f(0, soffy + (sizey * 0.5f));
-		glEnd();
+		immEnd();
+		immUnbindProgram();
 
 		glBindTexture(triple->target, 0);
 		glDisable(triple->target);