unsigned offset, unsigned size,
const void *data)
{
- uint8_t *map;
+ void *map;
assert(offset < buf->size);
assert(offset + size <= buf->size);
map = pipe_buffer_map_range(screen, buf, offset, size,
PIPE_BUFFER_USAGE_CPU_WRITE |
- PIPE_BUFFER_USAGE_FLUSH_EXPLICIT);
+ PIPE_BUFFER_USAGE_FLUSH_EXPLICIT |
+ PIPE_BUFFER_USAGE_DISCARD);
assert(map);
if(map) {
- memcpy(map + offset, data, size);
+ memcpy((uint8_t *)map + offset, data, size);
+ pipe_buffer_flush_mapped_range(screen, buf, offset, size);
+ pipe_buffer_unmap(screen, buf);
+ }
+}
+
+/**
+ * Special case for writing non-overlapping ranges.
+ *
+ * We can avoid GPU/CPU synchronization when writing range that has never
+ * been written before.
+ */
+static INLINE void
+pipe_buffer_write_nooverlap(struct pipe_screen *screen,
+ struct pipe_buffer *buf,
+ unsigned offset, unsigned size,
+ const void *data)
+{
+ void *map;
+
+ assert(offset < buf->size);
+ assert(offset + size <= buf->size);
+ assert(size);
+
+ map = pipe_buffer_map_range(screen, buf, offset, size,
+ PIPE_BUFFER_USAGE_CPU_WRITE |
+ PIPE_BUFFER_USAGE_FLUSH_EXPLICIT |
+ PIPE_BUFFER_USAGE_DISCARD |
+ PIPE_BUFFER_USAGE_UNSYNCHRONIZED);
+ assert(map);
+ if(map) {
+ memcpy((uint8_t *)map + offset, data, size);
pipe_buffer_flush_mapped_range(screen, buf, offset, size);
pipe_buffer_unmap(screen, buf);
}
unsigned offset, unsigned size,
void *data)
{
- uint8_t *map;
+ void *map;
assert(offset < buf->size);
assert(offset + size <= buf->size);
map = pipe_buffer_map_range(screen, buf, offset, size, PIPE_BUFFER_USAGE_CPU_READ);
assert(map);
if(map) {
- memcpy(data, map + offset, size);
+ memcpy(data, (const uint8_t *)map + offset, size);
pipe_buffer_unmap(screen, buf);
}
}
+static INLINE void *
+pipe_transfer_map( struct pipe_transfer *transf )
+{
+ struct pipe_screen *screen = transf->texture->screen;
+ return screen->transfer_map(screen, transf);
+}
+
+static INLINE void
+pipe_transfer_unmap( struct pipe_transfer *transf )
+{
+ struct pipe_screen *screen = transf->texture->screen;
+ screen->transfer_unmap(screen, transf);
+}
+
+static INLINE void
+pipe_transfer_destroy( struct pipe_transfer *transf )
+{
+ struct pipe_screen *screen = transf->texture->screen;
+ screen->tex_transfer_destroy(transf);
+}
+
+static INLINE unsigned
+pipe_transfer_buffer_flags( struct pipe_transfer *transf )
+{
+ switch (transf->usage & PIPE_TRANSFER_READ_WRITE) {
+ case PIPE_TRANSFER_READ_WRITE:
+ return PIPE_BUFFER_USAGE_CPU_READ | PIPE_BUFFER_USAGE_CPU_WRITE;
+ case PIPE_TRANSFER_READ:
+ return PIPE_BUFFER_USAGE_CPU_READ;
+ case PIPE_TRANSFER_WRITE:
+ return PIPE_BUFFER_USAGE_CPU_WRITE;
+ default:
+ debug_assert(0);
+ return 0;
+ }
+}
#ifdef __cplusplus
}