Module: Mesa
Branch: master
Commit: 45991479a3f83501652240a66424a7b64a93e4d7
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=45991479a3f83501652240a66424a7b64a93e4d7

Author: Jason Ekstrand <[email protected]>
Date:   Wed Jun 14 22:27:20 2017 -0700

i965/barrier: Do the correct flushes for texture updates

Texture uploads and downloads may go through the render pipe which may
result in texturing from or rendering to the texture or the PBO.  We
need to flush accordingly.

Reviewed-by: Topi Pohjolainen <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>

---

 src/mesa/drivers/dri/i965/brw_program.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_program.c 
b/src/mesa/drivers/dri/i965/brw_program.c
index 9ec2917c90..3743fa9b5e 100644
--- a/src/mesa/drivers/dri/i965/brw_program.c
+++ b/src/mesa/drivers/dri/i965/brw_program.c
@@ -268,8 +268,10 @@ brw_memory_barrier(struct gl_context *ctx, GLbitfield 
barriers)
    if (barriers & GL_TEXTURE_FETCH_BARRIER_BIT)
       bits |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE;
 
-   if (barriers & GL_TEXTURE_UPDATE_BARRIER_BIT)
-      bits |= PIPE_CONTROL_RENDER_TARGET_FLUSH;
+   if (barriers & (GL_TEXTURE_UPDATE_BARRIER_BIT |
+                   GL_PIXEL_BUFFER_BARRIER_BIT))
+      bits |= (PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE |
+               PIPE_CONTROL_RENDER_TARGET_FLUSH);
 
    if (barriers & GL_FRAMEBUFFER_BARRIER_BIT)
       bits |= (PIPE_CONTROL_DEPTH_CACHE_FLUSH |

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