static INLINE struct pipe_resource *
pipe_buffer_create( struct pipe_screen *screen,
unsigned bind,
+ unsigned usage,
unsigned size )
{
struct pipe_resource buffer;
buffer.target = PIPE_BUFFER;
buffer.format = PIPE_FORMAT_R8_UNORM; /* want TYPELESS or similar */
buffer.bind = bind;
- buffer.usage = PIPE_USAGE_DEFAULT;
+ buffer.usage = usage;
buffer.flags = 0;
buffer.width0 = size;
buffer.height0 = 1;
map = pipe->transfer_map( pipe, *transfer );
if (map == NULL) {
pipe->transfer_destroy( pipe, *transfer );
+ *transfer = NULL;
return NULL;
}
const void *data)
{
struct pipe_box box;
+ unsigned usage = PIPE_TRANSFER_WRITE;
+
+ if (offset == 0 && size == buf->width0) {
+ usage |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
+ } else {
+ usage |= PIPE_TRANSFER_DISCARD_RANGE;
+ }
u_box_1d(offset, size, &box);
pipe->transfer_inline_write( pipe,
buf,
0,
- PIPE_TRANSFER_WRITE,
+ usage,
&box,
data,
size,