intel: Unconditionally enable support for S8_Z24 texture format

Commit b5c847c7ca06823af3b72324056a2e478caca70b erroneously disabled
support for S8_Z24 texture format when the context required separate
stencil (intel_context.must_use_separate_stencil).

But the GL spec requires implementations to support GL_DEPTH24_STENCIL8.
So we better find a way to fake it...

From page 180 (196 of pdf) of the OpenGL 3.0 spec:
    In addition, implementations are required to support the following
    sized internal [texture] formats.

    [...]

    - Combined depth+stencil formats: DEPTH32F_STENCIL8 and and
      DEPTH24_STENCIL8.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Chad Versace <chad@chad-versace.us>

diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c
index 820688e..30d5c5b 100644 (file)
--- a/src/mesa/drivers/dri/intel/intel_context.c
+++ b/src/mesa/drivers/dri/intel/intel_context.c
@@ -663,7 +663,7 @@ intelInitContext(struct intel_context *intel,
       ctx->TextureFormatSupported[MESA_FORMAT_AL1616] = GL_TRUE;
 
    /* Depth and stencil */
-   ctx->TextureFormatSupported[MESA_FORMAT_S8_Z24] = !intel->must_use_separate_stencil;
+   ctx->TextureFormatSupported[MESA_FORMAT_S8_Z24] = GL_TRUE;
    ctx->TextureFormatSupported[MESA_FORMAT_X8_Z24] = intel->has_separate_stencil;
    ctx->TextureFormatSupported[MESA_FORMAT_S8] = intel->has_separate_stencil;