+#define R600_BUFFER_MAGIC 0xabcd1600
+#define R600_BUFFER_MAX_RANGES 32
+
+struct r600_buffer_range {
+ uint32_t start;
+ uint32_t end;
+};
+
+struct r600_resource_buffer {
+ struct r600_resource r;
+ uint32_t magic;
+ void *user_buffer;
+ struct r600_buffer_range ranges[R600_BUFFER_MAX_RANGES];
+ unsigned num_ranges;
+};
+
+/* r600_buffer */
+static INLINE struct r600_resource_buffer *r600_buffer(struct pipe_resource *buffer)
+{
+ if (buffer) {
+ assert(((struct r600_resource_buffer *)buffer)->magic == R600_BUFFER_MAGIC);
+ return (struct r600_resource_buffer *)buffer;
+ }
+ return NULL;
+}
+
+static INLINE boolean r600_buffer_is_user_buffer(struct pipe_resource *buffer)
+{
+ return r600_buffer(buffer)->user_buffer ? TRUE : FALSE;
+}
+
+int r600_texture_depth_flush(struct pipe_context *ctx,
+ struct pipe_resource *texture);
+
+extern int (*r600_blit_uncompress_depth_ptr)(struct pipe_context *ctx, struct r600_resource_texture *texture);
+
+/* r600_texture.c texture transfer functions. */
+struct pipe_transfer* r600_texture_get_transfer(struct pipe_context *ctx,
+ struct pipe_resource *texture,
+ struct pipe_subresource sr,
+ unsigned usage,
+ const struct pipe_box *box);
+void r600_texture_transfer_destroy(struct pipe_context *ctx,
+ struct pipe_transfer *trans);
+void* r600_texture_transfer_map(struct pipe_context *ctx,
+ struct pipe_transfer* transfer);
+void r600_texture_transfer_unmap(struct pipe_context *ctx,
+ struct pipe_transfer* transfer);
+