mesa: add helper func for checking combined depthstencil buffers from st/mesa

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

3 files changed, 6 insertions, 44 deletions

diff --git a/src/mesa/state_tracker/st_cb_blit.c b/src/mesa/state_tracker/st_cb_blit.c
index c463e3b047a..50cab4294da 100644
--- a/src/mesa/state_tracker/st_cb_blit.c
+++ b/src/mesa/state_tracker/st_cb_blit.c
@@ -239,31 +239,22 @@ st_BlitFramebuffer(struct gl_context *ctx,
       /* depth and/or stencil blit */
 
       /* get src/dst depth surfaces */
-      struct gl_renderbuffer_attachment *srcDepth =
-         &readFB->Attachment[BUFFER_DEPTH];
-      struct gl_renderbuffer_attachment *dstDepth =
-         &drawFB->Attachment[BUFFER_DEPTH];
-      struct gl_renderbuffer_attachment *srcStencil =
-         &readFB->Attachment[BUFFER_STENCIL];
-      struct gl_renderbuffer_attachment *dstStencil =
-         &drawFB->Attachment[BUFFER_STENCIL];
-
       struct st_renderbuffer *srcDepthRb =
-         st_renderbuffer(srcDepth->Renderbuffer);
+         st_renderbuffer(readFB->Attachment[BUFFER_DEPTH].Renderbuffer);
       struct st_renderbuffer *dstDepthRb = 
-         st_renderbuffer(dstDepth->Renderbuffer);
+         st_renderbuffer(drawFB->Attachment[BUFFER_DEPTH].Renderbuffer);
       struct pipe_surface *dstDepthSurf =
          dstDepthRb ? dstDepthRb->surface : NULL;
 
       struct st_renderbuffer *srcStencilRb =
-         st_renderbuffer(srcStencil->Renderbuffer);
+         st_renderbuffer(readFB->Attachment[BUFFER_STENCIL].Renderbuffer);
       struct st_renderbuffer *dstStencilRb =
-         st_renderbuffer(dstStencil->Renderbuffer);
+         st_renderbuffer(drawFB->Attachment[BUFFER_STENCIL].Renderbuffer);
       struct pipe_surface *dstStencilSurf =
          dstStencilRb ? dstStencilRb->surface : NULL;
 
-      if (st_is_depth_stencil_combined(srcDepth, srcStencil) &&
-          st_is_depth_stencil_combined(dstDepth, dstStencil)) {
+      if (_mesa_has_depthstencil_combined(readFB) &&
+          _mesa_has_depthstencil_combined(drawFB)) {
          blit.mask = 0;
          if (mask & GL_DEPTH_BUFFER_BIT)
             blit.mask |= PIPE_MASK_Z;
diff --git a/src/mesa/state_tracker/st_cb_fbo.c b/src/mesa/state_tracker/st_cb_fbo.c
index 87c5b048c56..4452e523b68 100644
--- a/src/mesa/state_tracker/st_cb_fbo.c
+++ b/src/mesa/state_tracker/st_cb_fbo.c
@@ -547,30 +547,6 @@ st_validate_attachment(struct gl_context *ctx,
 
    return valid;
 }
-
-
-/**
- * Check if two renderbuffer attachments name a combined depth/stencil
- * renderbuffer.
- */
-GLboolean
-st_is_depth_stencil_combined(const struct gl_renderbuffer_attachment *depth,
-                             const struct gl_renderbuffer_attachment *stencil)
-{
-   assert(depth && stencil);
-
-   if (depth->Type == stencil->Type) {
-      if (depth->Type == GL_RENDERBUFFER_EXT &&
-          depth->Renderbuffer == stencil->Renderbuffer)
-         return GL_TRUE;
-
-      if (depth->Type == GL_TEXTURE &&
-          depth->Texture == stencil->Texture)
-         return GL_TRUE;
-   }
-
-   return GL_FALSE;
-}
  
 
 /**
diff --git a/src/mesa/state_tracker/st_cb_fbo.h b/src/mesa/state_tracker/st_cb_fbo.h
index 506fd06d680..461dbe98597 100644
--- a/src/mesa/state_tracker/st_cb_fbo.h
+++ b/src/mesa/state_tracker/st_cb_fbo.h
@@ -76,9 +76,4 @@ st_new_renderbuffer_fb(enum pipe_format format, int samples, boolean sw);
 extern void
 st_init_fbo_functions(struct dd_function_table *functions);
 
-extern GLboolean
-st_is_depth_stencil_combined(const struct gl_renderbuffer_attachment *depth,
-                             const struct gl_renderbuffer_attachment *stencil);
-
-
 #endif /* ST_CB_FBO_H */