gallium/util: add util_format_is_supported to check for pack/unpack

This improves the code by making it more readable, and removes
special knowledge of S3TC and other formats from softpipe.

1 files changed, 1 insertions, 19 deletions

diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
index 26a4bba574..df527f5cb1 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -156,25 +156,9 @@ softpipe_is_format_supported( struct pipe_screen *screen,
           target == PIPE_TEXTURE_3D ||
           target == PIPE_TEXTURE_CUBE);
 
-   switch(format) {
-   case PIPE_FORMAT_YUYV:
-   case PIPE_FORMAT_UYVY:
+   if(!util_format_is_supported(format))
       return FALSE;
 
-   case PIPE_FORMAT_DXT1_RGB:
-   case PIPE_FORMAT_DXT1_RGBA:
-   case PIPE_FORMAT_DXT3_RGBA:
-   case PIPE_FORMAT_DXT5_RGBA:
-      return util_format_s3tc_enabled;
-
-   case PIPE_FORMAT_Z32_FLOAT:
-   case PIPE_FORMAT_NONE:
-      return FALSE;
-
-   default:
-      break;
-   }
-
    if(tex_usage & (PIPE_TEXTURE_USAGE_DISPLAY_TARGET |
                    PIPE_TEXTURE_USAGE_SCANOUT |
                    PIPE_TEXTURE_USAGE_SHARED)) {
@@ -182,8 +166,6 @@ softpipe_is_format_supported( struct pipe_screen *screen,
          return FALSE;
    }
 
-   /* XXX: this is often a lie.  Pull in logic from llvmpipe to fix.
-    */
    return TRUE;
 }