gsk: Fix rendering big textures with offsets

When slicing the texture, the GL renderer was
forgetting to apply the viewport origin. This
shows up when rendering things with negative
scales, leading to negative origins.

diff --git a/gsk/gl/gskglrenderer.c b/gsk/gl/gskglrenderer.c
index 306b042c9815aeb3a9fd781238bcd54d8e0f0905..007dae1f872fdad1cb06a8318e0c281bfa06b394 100644 (file)
--- a/gsk/gl/gskglrenderer.c
+++ b/gsk/gl/gskglrenderer.c
@@ -356,7 +356,8 @@ gsk_gl_renderer_render_texture (GskRenderer           *renderer,
           for (x = 0; x < width; x += max_size)
             {
               texture = gsk_gl_renderer_render_texture (renderer, root,
-                                                        &GRAPHENE_RECT_INIT (x, y,
+                                                        &GRAPHENE_RECT_INIT (viewport->origin.x + x,
+                                                                             viewport->origin.y + y,
                                                                              MIN (max_size, viewport->size.width - x),
                                                                              MIN (max_size, viewport->size.height - y)));
               gdk_texture_download (texture,