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glx do not use multisample visual config for front or pixmap

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There is no guaranty that glXGetFBConfigs will return fbconfig ordered
with non msaa config first. This patch make sure that non msaa config
get choose.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 93b7b4c850dd928bf21ee168a95641a8d631f713)
This commit is contained in:
Jerome Glisse 2013-01-29 18:37:41 -05:00 committed by Robert Bragg
parent 98e3b57d0d
commit 1f84b5c9b4
1 changed files with 23 additions and 6 deletions
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29
cogl/winsys/cogl-winsys-glx.c
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@ -776,13 +776,20 @@ glx_attributes_from_framebuffer_config (CoglDisplay *display,
attributes[i++] = GLX_STENCIL_SIZE;
attributes[i++] = config->need_stencil ? 1: GLX_DONT_CARE;
if (glx_renderer->glx_major == 1 && glx_renderer->glx_minor >= 4 &&
config->samples_per_pixel)
if (glx_renderer->glx_major == 1 && glx_renderer->glx_minor >= 4)
{
attributes[i++] = GLX_SAMPLE_BUFFERS;
attributes[i++] = 1;
attributes[i++] = GLX_SAMPLES;
attributes[i++] = config->samples_per_pixel;
if (config->samples_per_pixel)
{
attributes[i++] = GLX_SAMPLE_BUFFERS;
attributes[i++] = 1;
attributes[i++] = GLX_SAMPLES;
attributes[i++] = config->samples_per_pixel;
}
else
{
attributes[i++] = GLX_SAMPLE_BUFFERS;
attributes[i++] = 0;
}
}
attributes[i++] = None;
@ -2024,6 +2031,16 @@ get_fbconfig_for_depth (CoglContext *context,
if (value != depth && (value - alpha) != depth)
continue;
if (glx_renderer->glx_major == 1 && glx_renderer->glx_minor >= 4)
{
glx_renderer->glXGetFBConfigAttrib (dpy,
fbconfigs[i],
GLX_SAMPLES,
&value);
if (value > 1)
continue;
}
value = 0;
if (depth == 32)
{