Mesa (master): llvmpipe: Ensure tile cache transfers are mapped before flushing it.

[Jose Fonseca]

Module: Mesa
Branch: master
Commit: 77ef7050587bba43c219e9d22170237898b2bb23
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=77ef7050587bba43c219e9d22170237898b2bb23

Author: José Fonseca <jfonseca at vmware.com>
Date:   Sun Oct  4 13:25:24 2009 +0100

llvmpipe: Ensure tile cache transfers are mapped before flushing it.

---

 src/gallium/drivers/llvmpipe/lp_flush.c         |    8 ++++++--
 src/gallium/drivers/llvmpipe/lp_state_surface.c |    1 +
 src/gallium/drivers/llvmpipe/lp_tile_cache.c    |    2 ++
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/gallium/drivers/llvmpipe/lp_flush.c b/src/gallium/drivers/llvmpipe/lp_flush.c
index b5c1c95..cd8381f 100644
--- a/src/gallium/drivers/llvmpipe/lp_flush.c
+++ b/src/gallium/drivers/llvmpipe/lp_flush.c
@@ -58,8 +58,10 @@ llvmpipe_flush( struct pipe_context *pipe,
        * in the hope that a later clear will wipe them out.
        */
       for (i = 0; i < llvmpipe->framebuffer.nr_cbufs; i++)
-         if (llvmpipe->cbuf_cache[i])
+         if (llvmpipe->cbuf_cache[i]) {
+            lp_tile_cache_map_transfers(llvmpipe->cbuf_cache[i]);
             lp_flush_tile_cache(llvmpipe->cbuf_cache[i]);
+         }
 
       /* Need this call for hardware buffers before swapbuffers.
        *
@@ -71,8 +73,10 @@ llvmpipe_flush( struct pipe_context *pipe,
    }
    else if (flags & PIPE_FLUSH_RENDER_CACHE) {
       for (i = 0; i < llvmpipe->framebuffer.nr_cbufs; i++)
-         if (llvmpipe->cbuf_cache[i])
+         if (llvmpipe->cbuf_cache[i]) {
+            lp_tile_cache_map_transfers(llvmpipe->cbuf_cache[i]);
             lp_flush_tile_cache(llvmpipe->cbuf_cache[i]);
+         }
 
       /* FIXME: untile zsbuf! */
      
diff --git a/src/gallium/drivers/llvmpipe/lp_state_surface.c b/src/gallium/drivers/llvmpipe/lp_state_surface.c
index 2c29144..c06ce8b 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_surface.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_surface.c
@@ -53,6 +53,7 @@ llvmpipe_set_framebuffer_state(struct pipe_context *pipe,
       /* check if changing cbuf */
       if (lp->framebuffer.cbufs[i] != fb->cbufs[i]) {
          /* flush old */
+         lp_tile_cache_map_transfers(lp->cbuf_cache[i]);
          lp_flush_tile_cache(lp->cbuf_cache[i]);
 
          /* assign new */
diff --git a/src/gallium/drivers/llvmpipe/lp_tile_cache.c b/src/gallium/drivers/llvmpipe/lp_tile_cache.c
index 68d3fa3..ec3e002 100644
--- a/src/gallium/drivers/llvmpipe/lp_tile_cache.c
+++ b/src/gallium/drivers/llvmpipe/lp_tile_cache.c
@@ -236,6 +236,8 @@ lp_flush_tile_cache(struct llvmpipe_tile_cache *tc)
    if(!pt)
       return;
 
+   assert(tc->transfer_map);
+
    /* push the tile to all positions marked as clear */
    for (y = 0; y < pt->height; y += TILE_SIZE) {
       for (x = 0; x < pt->width; x += TILE_SIZE) {