Merge branch 'handle-max-texture-size' into 'master'

gl: Don't require too large texture for offsreen ops

See merge request GNOME/gtk!1411

diff --cc gsk/gl/gskglrenderer.c
index 011bbb18b858dfabd769613f7912b4182d7b6343,3f12412377c6c7027216e4a9ec501143df163abe..b0b8531f37b8fa0ea52050818fcf732b50cdc49e
--- 1/gsk/gl/gskglrenderer.c
--- 2/gsk/gl/gskglrenderer.c
+++ b/gsk/gl/gskglrenderer.c
@@@ -3051,8 -3048,9 +3049,9 @@@ add_offscreen_ops (GskGLRendere
    graphene_matrix_t prev_projection;
    graphene_rect_t prev_viewport;
    graphene_matrix_t item_proj;
 -  float prev_opacity;
 +  float prev_opacity = 1.0;
    int texture_id = 0;
+   int max_texture_size;
  
    if (node_is_invisible (child_node))
      {