Mesa (master): svga: try to flag surfaces for sampling, in addition to rendering

[Brian Paul]

Module: Mesa
Branch: master
Commit: 05abaa65c745d74fb296006285b85d253cb11525
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=05abaa65c745d74fb296006285b85d253cb11525

Author: Brian Paul <brianp at vmware.com>
Date:   Mon May  2 10:29:52 2016 -0600

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 at vmware.com>

---

 src/gallium/drivers/svga/svga_resource_texture.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/gallium/drivers/svga/svga_resource_texture.c b/src/gallium/drivers/svga/svga_resource_texture.c
index f176647..b7e8549 100644
--- 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;