2.5: Enable triple buffer drawing by default (if it doesn't work

or flickers, kick me). Also removed proxy texture test since it
does not seem to be implemented well by all drivers.

1 files changed, 4 insertions, 7 deletions

diff --git a/source/blender/windowmanager/intern/wm_draw.c b/source/blender/windowmanager/intern/wm_draw.c
index 34ab1c8d48f..7dc30695862 100644
--- a/source/blender/windowmanager/intern/wm_draw.c
+++ b/source/blender/windowmanager/intern/wm_draw.c
@@ -365,7 +365,7 @@ static void wm_draw_triple_fail(bContext *C, wmWindow *win)
 
 static int wm_triple_gen_textures(wmWindow *win, wmDrawTriple *triple)
 {
-	GLint width;
+	GLint maxsize;
 	int x, y;
 
 	/* compute texture sizes */
@@ -402,16 +402,13 @@ static int wm_triple_gen_textures(wmWindow *win, wmDrawTriple *triple)
 
 	for(y=0; y<triple->ny; y++) {
 		for(x=0; x<triple->nx; x++) {
-			/* disabled, does not seems to work well everywhere */
 			/* proxy texture is only guaranteed to test for the cases that
 			 * there is only one texture in use, which may not be the case */
-			glBindTexture(triple->target, triple->bind[x + y*triple->nx]);
-			glTexImage2D(GL_PROXY_TEXTURE_2D, 0, GL_RGB8, triple->x[x], triple->y[y], 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
-			glGetTexLevelParameteriv(GL_PROXY_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &width);
+			glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxsize);
 
-			if(width == 0) {
+			if(triple->x[x] > maxsize || triple->y[y] > maxsize) {
 				glBindTexture(triple->target, 0);
-				printf("WM: failed to allocate texture for triple buffer drawing (GL_PROXY_TEXTURE_2D).\n");
+				printf("WM: failed to allocate texture for triple buffer drawing (texture too large for graphics card).\n");
 				return 0;
 			}