Module: Mesa
Branch: mesa_7_7_branch
Commit: 6e96cea6e2de2ccc580d425a299cd9bab505ee8c
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=6e96cea6e2de2ccc580d425a299cd9bab505ee8c

Author: Brian Paul <[email protected]>
Date:   Thu Mar 11 13:44:39 2010 -0700

st/mesa: fix st_set_framebuffer_surface() state validation

Set the _NEW_BUFFERS flag and remove the code which updated the
parent framebuffer size.  Normal Mesa state validation will do that.

Fixes issues with Warsow on r300g and possibly other bugs.
(cherry picked from commit c472ce5302a590b45d8affe00c1fcce04f8b8585)

---

 src/mesa/state_tracker/st_framebuffer.c |   50 +++++++-----------------------
 1 files changed, 12 insertions(+), 38 deletions(-)

diff --git a/src/mesa/state_tracker/st_framebuffer.c 
b/src/mesa/state_tracker/st_framebuffer.c
index 26ee224..2aedf6a 100644
--- a/src/mesa/state_tracker/st_framebuffer.c
+++ b/src/mesa/state_tracker/st_framebuffer.c
@@ -166,9 +166,7 @@ st_set_framebuffer_surface(struct st_framebuffer *stfb,
                            uint surfIndex, struct pipe_surface *surf)
 {
    GET_CURRENT_CONTEXT(ctx);
-   static const GLuint invalid_size = 9999999;
    struct st_renderbuffer *strb;
-   GLuint width, height, i;
 
    /* sanity checks */
    assert(ST_SURFACE_FRONT_LEFT == BUFFER_FRONT_LEFT);
@@ -183,18 +181,17 @@ st_set_framebuffer_surface(struct st_framebuffer *stfb,
    strb = st_renderbuffer(stfb->Base.Attachment[surfIndex].Renderbuffer);
 
    if (!strb) {
-      if (surfIndex == ST_SURFACE_FRONT_LEFT) {
-         /* Delayed creation when the window system supplies a fake front 
buffer */
-         struct st_renderbuffer *strb_back
-            = 
st_renderbuffer(stfb->Base.Attachment[ST_SURFACE_BACK_LEFT].Renderbuffer);
-         struct gl_renderbuffer *rb
-            = st_new_renderbuffer_fb(surf->format, strb_back->Base.NumSamples, 
FALSE);
-         _mesa_add_renderbuffer(&stfb->Base, BUFFER_FRONT_LEFT, rb);
-         strb = st_renderbuffer(rb);
-      } else {
-         /* fail */
+      /* create new renderbuffer for this surface now */
+      const GLuint numSamples = stfb->Base.Visual.samples;
+      struct gl_renderbuffer *rb =
+         st_new_renderbuffer_fb(surf->format, numSamples, FALSE);
+      if (!rb) {
+         /* out of memory */
+         _mesa_warning(ctx, "Out of memory allocating renderbuffer");
          return;
       }
+      _mesa_add_renderbuffer(&stfb->Base, BUFFER_FRONT_LEFT, rb);
+      strb = st_renderbuffer(rb);
    }
 
    /* replace the renderbuffer's surface/texture pointers */
@@ -206,39 +203,16 @@ st_set_framebuffer_surface(struct st_framebuffer *stfb,
        * But when we do, we need to start setting this dirty bit
        * to ensure the renderbuffer attachements are up-to-date
        * via update_framebuffer.
+       * Core Mesa's state validation will update the parent framebuffer's
+       * size info, etc.
        */
       ctx->st->dirty.st |= ST_NEW_FRAMEBUFFER;
+      ctx->NewState |= _NEW_BUFFERS;
    }
 
    /* update renderbuffer's width/height */
    strb->Base.Width = surf->width;
    strb->Base.Height = surf->height;
-
-   /* Try to update the framebuffer's width/height from the renderbuffer
-    * sizes.  Before we start drawing, all the rbs _should_ be the same size.
-    */
-   width = height = invalid_size;
-   for (i = 0; i < BUFFER_COUNT; i++) {
-      if (stfb->Base.Attachment[i].Renderbuffer) {
-         if (width == invalid_size) {
-            width = stfb->Base.Attachment[i].Renderbuffer->Width;
-            height = stfb->Base.Attachment[i].Renderbuffer->Height;
-         }
-         else if (width != stfb->Base.Attachment[i].Renderbuffer->Width ||
-                  height != stfb->Base.Attachment[i].Renderbuffer->Height) {
-            /* inconsistant renderbuffer sizes, bail out */
-            return;
-         }
-      }
-   }
-
-   if (width != invalid_size) {
-      /* OK, the renderbuffers are of a consistant size, so update the
-       * parent framebuffer's size.
-       */
-      stfb->Base.Width = width;
-      stfb->Base.Height = height;
-   }
 }
 
 

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