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shaped-texture: Repeat edge pixels instead of mirroring the image

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While nothing will completely fix X11's artifacts, this tends to look a
bit better, *especially* with mask textures that have black at the
edges (which are most of them).

It's also faster for GPUs to manage.
This commit is contained in:
Jasper St. Pierre 2015-07-05 14:53:33 -07:00
parent 1ea8efdeda
commit aacc3d5628
1 changed files with 18 additions and 3 deletions
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21
src/compositor/meta-shaped-texture.c
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@ -187,10 +187,25 @@ meta_shaped_texture_dispose (GObject *object)
G_OBJECT_CLASS (meta_shaped_texture_parent_class)->dispose (object);
}
static CoglPipeline *
get_base_pipeline (CoglContext *ctx)
{
static CoglPipeline *template = NULL;
if (G_UNLIKELY (template == NULL))
{
template = cogl_pipeline_new (ctx);
cogl_pipeline_set_layer_wrap_mode_s (template, 0, COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE);
cogl_pipeline_set_layer_wrap_mode_t (template, 0, COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE);
cogl_pipeline_set_layer_wrap_mode_s (template, 1, COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE);
cogl_pipeline_set_layer_wrap_mode_t (template, 1, COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE);
}
return template;
}
static CoglPipeline *
get_unmasked_pipeline (CoglContext *ctx)
{
return cogl_pipeline_new (ctx);
return cogl_pipeline_copy (get_base_pipeline (ctx));
}
static CoglPipeline *
@ -199,7 +214,7 @@ get_masked_pipeline (CoglContext *ctx)
static CoglPipeline *template = NULL;
if (G_UNLIKELY (template == NULL))
{
template = cogl_pipeline_new (ctx);
template = cogl_pipeline_copy (get_base_pipeline (ctx));
cogl_pipeline_set_layer_combine (template, 1,
"RGBA = MODULATE (PREVIOUS, TEXTURE[A])",
NULL);
@ -215,7 +230,7 @@ get_unblended_pipeline (CoglContext *ctx)
if (G_UNLIKELY (template == NULL))
{
CoglColor color;
template = cogl_pipeline_new (ctx);
template = cogl_pipeline_copy (get_base_pipeline (ctx));
cogl_color_init_from_4ub (&color, 255, 255, 255, 255);
cogl_pipeline_set_blend (template,
"RGBA = ADD (SRC_COLOR, 0)",