mesa: Add draw time validation for advanced blending modes.

[mesa.git] / src / mesa / main / genmipmap.c

diff --git a/src/mesa/main/genmipmap.c b/src/mesa/main/genmipmap.c
index d917220f7e8da2a1ddf137f9006a0e9df2b98bdc..97d3c62b7bbc397f257aeeeeded0279657f99236 100644 (file)
--- a/src/mesa/main/genmipmap.c
+++ b/src/mesa/main/genmipmap.c
@@ -85,12 +85,17 @@ _mesa_is_valid_generate_texture_mipmap_internalformat(struct gl_context *ctx,
        *  not specified with an unsized internal format from table 8.3 or a
        *  sized internal format that is both color-renderable and
        *  texture-filterable according to table 8.10."
+       *
+       * GL_EXT_texture_format_BGRA8888 adds a GL_BGRA_EXT unsized internal
+       * format, and includes it in a very similar looking table.  So we
+       * include it here as well.
        */
       return internalformat == GL_RGBA || internalformat == GL_RGB ||
              internalformat == GL_LUMINANCE_ALPHA ||
              internalformat == GL_LUMINANCE || internalformat == GL_ALPHA ||
+             internalformat == GL_BGRA_EXT ||
              (_mesa_is_es3_color_renderable(internalformat) &&
-              _mesa_is_es3_texture_filterable(internalformat));
+              _mesa_is_es3_texture_filterable(ctx, internalformat));
    }
 
    return (!_mesa_is_enum_format_integer(internalformat) &&
@@ -144,6 +149,11 @@ _mesa_generate_texture_mipmap(struct gl_context *ctx,
       return;
    }
 
+   if (srcImage->Width == 0 || srcImage->Height == 0) {
+      _mesa_unlock_texture(ctx, texObj);
+      return;
+   }
+
    if (target == GL_TEXTURE_CUBE_MAP) {
       GLuint face;
       for (face = 0; face < 6; face++) {