4 files changed, 20 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/radeon/radeon_common_context.h b/src/mesa/drivers/dri/radeon/radeon_common_context.h
index d1a24e265f..5156c5d0d0 100644
--- a/src/mesa/drivers/dri/radeon/radeon_common_context.h
+++ b/src/mesa/drivers/dri/radeon/radeon_common_context.h
@@ -539,6 +539,7 @@ struct radeon_context {
                         unsigned reg_width,
                         unsigned reg_height,
                         unsigned flip_y);
+	   unsigned (*is_format_renderable)(gl_format mesa_format);
    } vtbl;
 };
 
diff --git a/src/mesa/drivers/dri/radeon/radeon_context.c b/src/mesa/drivers/dri/radeon/radeon_context.c
index 878a453bd5..56aba16e9e 100644
--- a/src/mesa/drivers/dri/radeon/radeon_context.c
+++ b/src/mesa/drivers/dri/radeon/radeon_context.c
@@ -200,6 +200,7 @@ static void r100_init_vtbl(radeonContextPtr radeon)
    radeon->vtbl.emit_query_finish = r100_emit_query_finish;
    radeon->vtbl.check_blit = r100_check_blit;
    radeon->vtbl.blit = r100_blit;
+   radeon->vtbl.is_format_renderable = radeonIsFormatRenderable;
 }
 
 /* Create the device specific context.
diff --git a/src/mesa/drivers/dri/radeon/radeon_texture.c b/src/mesa/drivers/dri/radeon/radeon_texture.c
index 3ccc711253..2b655fbd95 100644
--- a/src/mesa/drivers/dri/radeon/radeon_texture.c
+++ b/src/mesa/drivers/dri/radeon/radeon_texture.c
@@ -1006,3 +1006,19 @@ void radeonTexSubImage3D(GLcontext * ctx, GLenum target, GLint level,
 	radeon_texsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, width, height, depth, 0,
 		format, type, pixels, packing, texObj, texImage, 0);
 }
+
+unsigned radeonIsFormatRenderable(gl_format mesa_format)
+{
+	if (mesa_format == _dri_texformat_argb8888 || mesa_format == _dri_texformat_rgb565 ||
+		mesa_format == _dri_texformat_argb1555 || mesa_format == _dri_texformat_argb4444)
+		return 1;
+
+	switch (mesa_format)
+	{
+		case MESA_FORMAT_Z16:
+		case MESA_FORMAT_S8_Z24:
+			return 1;
+		default:
+			return 0;
+	}
+}
diff --git a/src/mesa/drivers/dri/radeon/radeon_texture.h b/src/mesa/drivers/dri/radeon/radeon_texture.h
index f09dd65214..4ce639ea34 100644
--- a/src/mesa/drivers/dri/radeon/radeon_texture.h
+++ b/src/mesa/drivers/dri/radeon/radeon_texture.h
@@ -135,4 +135,6 @@ void radeonCopyTexSubImage2D(GLcontext *ctx, GLenum target, GLint level,
 			GLint x, GLint y,
 			GLsizei width, GLsizei height);
 
+unsigned radeonIsFormatRenderable(gl_format mesa_format);
+
 #endif