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clutter/stage-view: Use graphene APIs

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In this case, since we are building the entire matrix by ourselves,
reverse the order of operations (translate + scale → scale + translate)
and build it using graphene-specific APIs.

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1439
This commit is contained in:
Georges Basile Stavracas Neto 2020-09-11 16:39:50 -03:00
parent dc8f875a8a
commit aca2880c6a
1 changed files with 9 additions and 8 deletions
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17
clutter/clutter/clutter-stage-view.c
View File

@ -236,13 +236,14 @@ paint_transformed_framebuffer (ClutterStageView *view,
cogl_framebuffer_push_matrix (dst_framebuffer); cogl_framebuffer_push_matrix (dst_framebuffer);
cogl_matrix_init_identity (&matrix); graphene_matrix_init_translate (&matrix,
cogl_matrix_scale (&matrix, &GRAPHENE_POINT3D_INIT (-dst_width / 2.0,
1.0 / (dst_width / 2.0), -dst_height / 2.0,
-1.0 / (dst_height / 2.0), 0); 0.f));
cogl_matrix_translate (&matrix, graphene_matrix_scale (&matrix,
-(dst_width / 2.0), 1.0 / (dst_width / 2.0),
-(dst_height / 2.0), 0); -1.0 / (dst_height / 2.0),
0.f);
cogl_framebuffer_set_projection_matrix (dst_framebuffer, &matrix); cogl_framebuffer_set_projection_matrix (dst_framebuffer, &matrix);
cogl_framebuffer_set_viewport (dst_framebuffer, cogl_framebuffer_set_viewport (dst_framebuffer,
0, 0, dst_width, dst_height); 0, 0, dst_width, dst_height);
@ -987,7 +988,7 @@ static void
clutter_stage_default_get_offscreen_transformation_matrix (ClutterStageView *view, clutter_stage_default_get_offscreen_transformation_matrix (ClutterStageView *view,
graphene_matrix_t *matrix) graphene_matrix_t *matrix)
{ {
cogl_matrix_init_identity (matrix); graphene_matrix_init_identity (matrix);
} }
void void