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gallium: added queries to determin GL_EXT_packed_depth_stencil support

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This commit is contained in:
Brian Paul
2008-08-14 10:53:59 -06:00
parent 19aee90179
commit 6c46b49d12
1 changed files with 20 additions and 0 deletions
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20
src/mesa/state_tracker/st_extensions.c
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@@ -218,6 +218,26 @@ void st_init_extensions(struct st_context *st)
/*ctx->Extensions.ARB_shadow_ambient = GL_TRUE;*/
}
/* GL_EXT_packed_depth_stencil requires both the ability to render to
* a depth/stencil buffer and texture from depth/stencil source.
*/
if (screen->is_format_supported(screen, PIPE_FORMAT_Z24S8_UNORM,
PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0) &&
screen->is_format_supported(screen, PIPE_FORMAT_Z24S8_UNORM,
PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_SAMPLER, 0)) {
ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;
}
else if (screen->is_format_supported(screen, PIPE_FORMAT_S8Z24_UNORM,
PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0) &&
screen->is_format_supported(screen, PIPE_FORMAT_S8Z24_UNORM,
PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_SAMPLER, 0)) {
ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;
}
if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SRGB,
PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_SAMPLER, 0)) {