svga: implement sRGB rendering for imported surfaces

If texture is imported and templ format is sRGB, use compatible sRGB format
to the imported texture format while creating surface view.

tested with MTT piglit, glretrace, viewperf and conform

Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Charmaine Lee <[email protected]>

1 files changed, 9 insertions, 2 deletions

diff --git a/src/gallium/drivers/svga/svga_surface.c b/src/gallium/drivers/svga/svga_surface.c
index fdc6ba4e4da..04173266ff0 100644
--- a/src/gallium/drivers/svga/svga_surface.c
+++ b/src/gallium/drivers/svga/svga_surface.c
@@ -305,10 +305,17 @@ svga_create_surface_view(struct pipe_context *pipe,
       bind = PIPE_BIND_RENDER_TARGET;
    }
 
-   if (tex->imported)
+   if (tex->imported) {
+      /* imported resource (a window) */
       format = tex->key.format;
-   else
+      if (util_format_is_srgb(surf_tmpl->format)) {
+         /* sRGB rendering to window */
+         format = svga_linear_to_srgb(format);
+      }
+   }
+   else {
       format = svga_translate_format(ss, surf_tmpl->format, bind);
+   }
 
    assert(format != SVGA3D_FORMAT_INVALID);