*
**************************************************************************/
-#ifndef U_VBUF_MGR_H
-#define U_VBUF_MGR_H
+#ifndef U_VBUF_H
+#define U_VBUF_H
-/* This module builds upon u_upload_mgr and translate_cache and takes care of
- * user buffer uploads and vertex format fallbacks. It's designed
- * for the drivers which don't always use the Draw module. (e.g. for HWTCL)
+/* This module takes care of user buffer uploads and vertex format fallbacks.
+ * It's designed for the drivers which don't want to use the Draw module.
+ * There is a more detailed description at the beginning of the .c file.
*/
#include "pipe/p_context.h"
#include "pipe/p_state.h"
-#include "util/u_transfer.h"
+#include "pipe/p_format.h"
+
+struct cso_context;
+struct u_vbuf;
+
+#define U_VBUF_FLAG_NO_USER_VBOS (1 << 0)
/* Hardware vertex fetcher limitations can be described by this structure. */
struct u_vbuf_caps {
- /* Vertex format CAPs. */
- /* TRUE if hardware supports it. */
- unsigned format_fixed32:1; /* PIPE_FORMAT_*32*_FIXED */
- unsigned format_float16:1; /* PIPE_FORMAT_*16*_FLOAT */
- unsigned format_float64:1; /* PIPE_FORMAT_*64*_FLOAT */
- unsigned format_norm32:1; /* PIPE_FORMAT_*32*NORM */
- unsigned format_scaled32:1; /* PIPE_FORMAT_*32*SCALED */
+ enum pipe_format format_translation[PIPE_FORMAT_COUNT];
- /* Whether vertex fetches don't have to be dword-aligned. */
+ /* Whether vertex fetches don't have to be 4-byte-aligned. */
/* TRUE if hardware supports it. */
- unsigned fetch_dword_unaligned:1;
-};
-
-/* The manager.
- * This structure should also be used to access vertex buffers
- * from a driver. */
-struct u_vbuf {
- /* This is what was set in set_vertex_buffers.
- * May contain user buffers. */
- struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
- unsigned nr_vertex_buffers;
+ unsigned buffer_offset_unaligned:1;
+ unsigned buffer_stride_unaligned:1;
+ unsigned velem_src_offset_unaligned:1;
- /* This uploader can optionally be used by the driver.
- *
- * Allowed functions:
- * - u_upload_alloc
- * - u_upload_data
- * - u_upload_buffer
- * - u_upload_flush */
- struct u_upload_mgr *uploader;
-
- struct u_vbuf_caps caps;
-};
-
-struct u_vbuf_resource {
- struct u_resource b;
- uint8_t *user_ptr;
+ /* Whether the driver supports user vertex buffers. */
+ unsigned user_vertex_buffers:1;
};
-/* Opaque type containing information about vertex elements for the manager. */
-struct u_vbuf_elements;
-
-enum u_fetch_alignment {
- U_VERTEX_FETCH_BYTE_ALIGNED,
- U_VERTEX_FETCH_DWORD_ALIGNED
-};
+boolean u_vbuf_get_caps(struct pipe_screen *screen, struct u_vbuf_caps *caps,
+ unsigned flags);
struct u_vbuf *
u_vbuf_create(struct pipe_context *pipe,
- unsigned upload_buffer_size,
- unsigned upload_buffer_alignment,
- unsigned upload_buffer_bind,
- enum u_fetch_alignment fetch_alignment);
+ struct u_vbuf_caps *caps, unsigned aux_vertex_buffer_index);
void u_vbuf_destroy(struct u_vbuf *mgr);
-struct u_vbuf_elements *
-u_vbuf_create_vertex_elements(struct u_vbuf *mgr,
- unsigned count,
- const struct pipe_vertex_element *attrs,
- struct pipe_vertex_element *native_attrs);
-
-void u_vbuf_bind_vertex_elements(struct u_vbuf *mgr,
- void *cso,
- struct u_vbuf_elements *ve);
-
-void u_vbuf_destroy_vertex_elements(struct u_vbuf *mgr,
- struct u_vbuf_elements *ve);
-
-void u_vbuf_draw_begin(struct u_vbuf *mgr,
- struct pipe_draw_info *info);
-
-unsigned u_vbuf_draw_max_vertex_count(struct u_vbuf *mgr);
-
-void u_vbuf_draw_end(struct u_vbuf *mgr);
-
-
-static INLINE struct u_vbuf_resource *u_vbuf_resource(struct pipe_resource *r)
-{
- return (struct u_vbuf_resource*)r;
-}
+/* State and draw functions. */
+void u_vbuf_set_vertex_elements(struct u_vbuf *mgr, unsigned count,
+ const struct pipe_vertex_element *states);
+void u_vbuf_set_vertex_buffers(struct u_vbuf *mgr,
+ unsigned start_slot, unsigned count,
+ const struct pipe_vertex_buffer *bufs);
+void u_vbuf_draw_vbo(struct u_vbuf *mgr, const struct pipe_draw_info *info);
+
+/* Save/restore functionality. */
+void u_vbuf_save_vertex_elements(struct u_vbuf *mgr);
+void u_vbuf_restore_vertex_elements(struct u_vbuf *mgr);
+void u_vbuf_save_aux_vertex_buffer_slot(struct u_vbuf *mgr);
+void u_vbuf_restore_aux_vertex_buffer_slot(struct u_vbuf *mgr);
#endif
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