Feature:

Image Editor and 3D view background image now use new automatic switching for
drawing GPU texture or OpenGL DrawPixels too. For large zoomed images
it gives massive speedup.

1 files changed, 3 insertions, 5 deletions

diff --git a/source/blender/editors/space_image/image_draw.c b/source/blender/editors/space_image/image_draw.c
index cae71885b87..5ae6ac8a54b 100644
--- a/source/blender/editors/space_image/image_draw.c
+++ b/source/blender/editors/space_image/image_draw.c
@@ -491,6 +491,8 @@ static void draw_image_buffer(const bContext *C, SpaceImage *sima, ARegion *ar,
 	/* set zoom */
 	glPixelZoom(zoomx, zoomy);
 
+	glaDefine2DArea(&ar->winrct);
+	
 	/* find window pixel coordinates of origin */
 	UI_view2d_to_region_no_clip(&ar->v2d, fx, fy, &x, &y);
 
@@ -523,11 +525,7 @@ static void draw_image_buffer(const bContext *C, SpaceImage *sima, ARegion *ar,
 		display_buffer = IMB_display_buffer_acquire_ctx(C, ibuf, &cache_handle);
 
 		if (display_buffer)
-			glaDrawPixelsSafe(x, y, ibuf->x, ibuf->y, ibuf->x, GL_RGBA, GL_UNSIGNED_BYTE, display_buffer);
-#if 0
-		else
-			glaDrawPixelsSafe(x, y, ibuf->x, ibuf->y, ibuf->x, GL_RGBA, GL_FLOAT, ibuf->rect_float);
-#endif
+			glaDrawPixelsAuto(x, y, ibuf->x, ibuf->y, GL_UNSIGNED_BYTE, display_buffer);
 
 		IMB_display_buffer_release(cache_handle);