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st/mesa: do not advertise S3TC if the external lib is not available

This commit is contained in:
Marek Olšák 2010-02-27 03:20:58 +01:00
parent d36e3952c2
commit aa4d47f68f
1 changed files with 6 additions and 2 deletions
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8
src/mesa/state_tracker/st_extensions.c
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@ -299,8 +299,12 @@ void st_init_extensions(struct st_context *st)
/* s3tc support */
if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA,
PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_SAMPLER, 0)) {
PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_SAMPLER, 0) &&
(ctx->Mesa_DXTn ||
screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA,
PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_RENDER_TARGET, 0))) {
ctx->Extensions.EXT_texture_compression_s3tc = GL_TRUE;
ctx->Extensions.S3_s3tc = GL_TRUE;
}