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compositor: Address blending for XRGB surfaces with alpha < 1.0.

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This commit is contained in:
Scott Moreau 2012-05-22 10:18:50 -06:00 committed by Kristian Høgsberg
parent 9b68af0608
commit 9fb9824c17
1 changed files with 8 additions and 6 deletions
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14
src/compositor.c
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@ -839,6 +839,7 @@ WL_EXPORT void
weston_surface_draw(struct weston_surface *es, struct weston_output *output,
pixman_region32_t *damage)
{
GLfloat surface_rect[4] = { 0.0, 1.0, 0.0, 1.0 };
struct weston_compositor *ec = es->compositor;
GLfloat *v;
pixman_region32_t repaint;
@ -854,7 +855,7 @@ weston_surface_draw(struct weston_surface *es, struct weston_output *output,
goto out;
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
if (es->blend)
if (es->blend || es->alpha < 1.0)
glEnable(GL_BLEND);
else
glDisable(GL_BLEND);
@ -873,7 +874,10 @@ weston_surface_draw(struct weston_surface *es, struct weston_output *output,
glUniform1f(es->shader->saturation_uniform, es->saturation);
glUniform1f(es->shader->texwidth_uniform,
(GLfloat)es->geometry.width / es->pitch);
glUniform4fv(es->shader->opaque_uniform, 1, es->opaque_rect);
if (es->blend)
glUniform4fv(es->shader->opaque_uniform, 1, es->opaque_rect);
else
glUniform4fv(es->shader->opaque_uniform, 1, surface_rect);
if (es->transform.enabled || output->zoom.active)
filter = GL_LINEAR;
@ -2419,10 +2423,8 @@ weston_shader_init(struct weston_shader *shader,
shader->brightness_uniform = glGetUniformLocation(shader->program, "bright");
shader->saturation_uniform = glGetUniformLocation(shader->program, "saturation");
shader->color_uniform = glGetUniformLocation(shader->program, "color");
shader->texwidth_uniform = glGetUniformLocation(shader->program,
"texwidth");
shader->opaque_uniform =
glGetUniformLocation(shader->program, "opaque");
shader->texwidth_uniform = glGetUniformLocation(shader->program, "texwidth");
shader->opaque_uniform = glGetUniformLocation(shader->program, "opaque");
return 0;
}