i965/formats: Update the three-channel DXT1 mappings

[mesa.git] / src / mesa / drivers / dri / i965 / brw_wm_surface_state.c

diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index ba98cd42a5e74790c697b9c5dacb504924943f5b..a0fed6096d26880a7149fa63d235d0d9a8da409c 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -389,7 +389,9 @@ brw_get_texture_swizzle(const struct gl_context *ctx,
    case GL_RED:
    case GL_RG:
    case GL_RGB:
-      if (_mesa_get_format_bits(img->TexFormat, GL_ALPHA_BITS) > 0)
+      if (_mesa_get_format_bits(img->TexFormat, GL_ALPHA_BITS) > 0 ||
+          img->TexFormat == MESA_FORMAT_RGB_DXT1 ||
+          img->TexFormat == MESA_FORMAT_SRGB_DXT1)
          swizzles[3] = SWIZZLE_ONE;
       break;
    }