mesa/st: add RGTC format support.

[mesa.git] / src / mesa / state_tracker / st_extensions.c

diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 2f45f470334ee5574fcc3af6c9f5e8b269d3ef72..d2098987d1d738c12cd004a66d07a5bdce825cf4 100644 (file)
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -416,6 +416,22 @@ void st_init_extensions(struct st_context *st)
       ctx->Extensions.S3_s3tc = GL_TRUE;
    }
 
+   if (screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_UNORM,
+                                   PIPE_TEXTURE_2D, 0,
+                                   PIPE_BIND_SAMPLER_VIEW, 0) &&
+       screen->is_format_supported(screen, PIPE_FORMAT_RGTC1_SNORM,
+                                  PIPE_TEXTURE_2D, 0,
+                                   PIPE_BIND_SAMPLER_VIEW, 0) &&
+       screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_UNORM,
+                                   PIPE_TEXTURE_2D, 0,
+                                   PIPE_BIND_SAMPLER_VIEW, 0) &&
+       screen->is_format_supported(screen, PIPE_FORMAT_RGTC2_SNORM,
+                                   PIPE_TEXTURE_2D, 0,
+                                   PIPE_BIND_SAMPLER_VIEW, 0)
+       ) {
+     ctx->Extensions.ARB_texture_compression_rgtc = GL_TRUE;
+   }
+
    /* ycbcr support */
    if (screen->is_format_supported(screen, PIPE_FORMAT_UYVY, 
                                    PIPE_TEXTURE_2D, 0,