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st/mesa: determine Const.MaxSamples in init_extensions

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v2: Check for non-pow2 sample counts as well.
This commit is contained in:
Christoph Bumiller
2011-07-28 15:26:01 +02:00
parent 32f4cf3808
commit 57590e173b
1 changed files with 11 additions and 0 deletions
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11
src/mesa/state_tracker/st_extensions.c
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@@ -228,6 +228,7 @@ void st_init_extensions(struct st_context *st)
{
struct pipe_screen *screen = st->pipe->screen;
struct gl_context *ctx = st->ctx;
int i;
/*
* Extensions that are supported by all Gallium drivers:
@@ -605,6 +606,16 @@ void st_init_extensions(struct st_context *st)
ctx->Extensions.EXT_packed_float = GL_TRUE;
}
/* Maximum sample count. */
for (i = 16; i > 0; --i) {
if (screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_UNORM,
PIPE_TEXTURE_2D, i,
PIPE_BIND_RENDER_TARGET)) {
ctx->Const.MaxSamples = i;
break;
}
}
if (screen->get_param(screen, PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE)) {
ctx->Extensions.ARB_seamless_cube_map = GL_TRUE;
ctx->Extensions.AMD_seamless_cubemap_per_texture = GL_TRUE;