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authorJosé Fonseca <jfonseca@vmware.com>2009-03-02 17:35:28 +0000
committerJosé Fonseca <jfonseca@vmware.com>2009-03-02 17:35:28 +0000
commitfe64aa0c8eb71e708a3530f8fec2c7df94d90e36 (patch)
treec635afd0a6785b19ce273719dd083f59f1a3e2da /src
parentcfc3d5c219e3ae3190b7700472bdefec028a7a15 (diff)
pipebuffer: Handle PIPE_BUFFER_USAGE_DONTBLOCK flag.
Conflicts: src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c
Diffstat (limited to 'src')
-rw-r--r--src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c20
1 files changed, 15 insertions, 5 deletions
diff --git a/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c b/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c
index ede2af4460f..788bf9087f7 100644
--- a/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c
+++ b/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c
@@ -291,16 +291,26 @@ fenced_buffer_map(struct pb_buffer *buf,
unsigned flags)
{
struct fenced_buffer *fenced_buf = fenced_buffer(buf);
+ struct fenced_buffer_list *fenced_list = fenced_buf->list;
+ struct pipe_winsys *winsys = fenced_list->winsys;
void *map;
- assert(!(flags & ~PIPE_BUFFER_USAGE_CPU_READ_WRITE));
- flags &= PIPE_BUFFER_USAGE_CPU_READ_WRITE;
+ assert(!(flags & PIPE_BUFFER_USAGE_GPU_READ_WRITE));
/* Serialize writes */
if((fenced_buf->flags & PIPE_BUFFER_USAGE_GPU_WRITE) ||
((fenced_buf->flags & PIPE_BUFFER_USAGE_GPU_READ) && (flags & PIPE_BUFFER_USAGE_CPU_WRITE))) {
- /* Wait for the GPU to finish */
- _fenced_buffer_finish(fenced_buf);
+ if(flags & PIPE_BUFFER_USAGE_DONTBLOCK) {
+ /* Don't wait for the GPU to finish writing */
+ if(winsys->fence_finish(winsys, fenced_buf->fence, 0) == 0)
+ _fenced_buffer_remove(fenced_list, fenced_buf);
+ else
+ return NULL;
+ }
+ else {
+ /* Wait for the GPU to finish writing */
+ _fenced_buffer_finish(fenced_buf);
+ }
}
#if 0
@@ -314,7 +324,7 @@ fenced_buffer_map(struct pb_buffer *buf,
map = pb_map(fenced_buf->buffer, flags);
if(map) {
++fenced_buf->mapcount;
- fenced_buf->flags |= flags;
+ fenced_buf->flags |= flags & PIPE_BUFFER_USAGE_CPU_READ_WRITE;
}
return map;