vl_vertex_buffers.h revision c87b83d4b2b860bb4c9f90897232e661a2b94c07 
1/**************************************************************************
2 *
3 * Copyright 2010 Christian König
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27#ifndef vl_vertex_buffers_h
28#define vl_vertex_buffers_h
29
30#include <pipe/p_state.h>
31#include <pipe/p_video_state.h>
32
33#include "vl_types.h"
34
35/* vertex buffers act as a todo list
36 * uploading all the usefull informations to video ram
37 * so a vertex shader can work with them
38 */
39
40/* inputs to the vertex shaders */
41enum VS_INPUT
42{
43   VS_I_RECT,
44   VS_I_VPOS,
45
46   VS_I_FLAGS,
47   VS_I_EB,
48
49   VS_I_MV_TOP = VS_I_FLAGS,
50   VS_I_MV_BOTTOM = VS_I_EB,
51
52   NUM_VS_INPUTS
53};
54
55struct vl_vertex_buffer
56{
57   unsigned size;
58   unsigned num_not_empty;
59   unsigned num_empty;
60   struct pipe_resource *resource;
61   struct pipe_transfer *transfer;
62   struct vl_vertex_stream *start;
63   struct vl_vertex_stream *end;
64};
65
66struct pipe_vertex_buffer vl_vb_upload_quads(struct pipe_context *pipe,
67                                             unsigned blocks_x, unsigned blocks_y);
68
69void *vl_vb_get_ves_eb(struct pipe_context *pipe, int component);
70
71void *vl_vb_get_ves_mv(struct pipe_context *pipe, int motionvector);
72
73struct pipe_vertex_buffer vl_vb_init(struct vl_vertex_buffer *buffer,
74                                     struct pipe_context *pipe,
75                                     unsigned max_blocks);
76
77void vl_vb_map(struct vl_vertex_buffer *buffer, struct pipe_context *pipe);
78
79void vl_vb_add_block(struct vl_vertex_buffer *buffer, struct pipe_mpeg12_macroblock *mb,
80                     const unsigned (*empty_block_mask)[3][2][2]);
81
82void vl_vb_unmap(struct vl_vertex_buffer *buffer, struct pipe_context *pipe);
83
84void vl_vb_restart(struct vl_vertex_buffer *buffer,
85                   unsigned *not_empty_start_instance, unsigned *not_empty_num_instances,
86                   unsigned *empty_start_instance, unsigned *empty_num_instances);
87
88void vl_vb_cleanup(struct vl_vertex_buffer *buffer);
89
90#endif /* vl_vertex_buffers_h */
91