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compositor: Don't use glClear for clearing

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Draw solid color rectangles clipped to the repaint area instead.
This commit is contained in:
Kristian Høgsberg
2011-04-23 15:34:50 -04:00
parent fab5ec1215
commit c352ab03fe
1 changed files with 9 additions and 2 deletions
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compositor/compositor.c
+9 -2
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@@ -687,8 +687,14 @@ fade_output(struct wlsc_output *output,
surface.y = output->y;
surface.width = output->width;
surface.height = output->height;
surface.visual = &compositor->compositor.premultiplied_argb_visual;
surface.texture = GL_NONE;
if (tint <= 1.0)
surface.visual =
&compositor->compositor.premultiplied_argb_visual;
else
surface.visual = &compositor->compositor.rgb_visual;
glUseProgram(compositor->solid_shader.program);
glUniformMatrix4fv(compositor->solid_shader.proj_uniform,
1, GL_FALSE, output->matrix.d);
@@ -767,8 +773,9 @@ wlsc_output_repaint(struct wlsc_output *output)
wlsc_surface_draw(output->background,
output, &total_damage);
else
glClear(GL_COLOR_BUFFER_BIT);
fade_output(output, 1.0, &total_damage);
glUseProgram(ec->texture_shader.program);
wl_list_for_each_reverse(es, &ec->surface_list, link) {
if (ec->overlay == es)
continue;