svga: try to flag surfaces for sampling, in addition to rendering

This silences some warnings when we try to sample from surfaces that were
created for drawing, such as when blitting from one of the framebuffer
surfaces.  We were already doing the opposite situation (adding a bind
flag for rendering to surfaces declared as texture sources).

Reviewed-by: Charmaine Lee <charmainel@vmware.com>

diff --git a/src/gallium/drivers/svga/svga_resource_texture.c b/src/gallium/drivers/svga/svga_resource_texture.c
index f176647dcf6d8a4e97dbc0e1fe9496cf93f6248e..b7e8549b7828b7192f7f168ff5b1ec7d5e4d919c 100644 (file)
--- a/src/gallium/drivers/svga/svga_resource_texture.c
+++ b/src/gallium/drivers/svga/svga_resource_texture.c
@@ -839,6 +839,17 @@ svga_texture_create(struct pipe_screen *screen,
 
    tex->key.cachable = 1;
 
+   if ((bindings & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL)) &&
+       !(bindings & PIPE_BIND_SAMPLER_VIEW)) {
+      /* Also check if the format can be sampled from */
+      if (screen->is_format_supported(screen, template->format,
+                                      template->target,
+                                      template->nr_samples,
+                                      PIPE_BIND_SAMPLER_VIEW)) {
+         bindings |= PIPE_BIND_SAMPLER_VIEW;
+      }
+   }
+
    if (bindings & PIPE_BIND_SAMPLER_VIEW) {
       tex->key.flags |= SVGA3D_SURFACE_HINT_TEXTURE;
       tex->key.flags |= SVGA3D_SURFACE_BIND_SHADER_RESOURCE;