vl_vertex_buffers.h revision 38a315b7049946d124409b377e622994feccdcb7 
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_defines.h"
34#include "vl_types.h"
35
36/* vertex buffers act as a todo list
37 * uploading all the usefull informations to video ram
38 * so a vertex shader can work with them
39 */
40
41/* inputs to the vertex shaders */
42enum VS_INPUT
43{
44   VS_I_RECT,
45   VS_I_VPOS,
46
47   VS_I_FLAGS,
48   VS_I_EB,
49
50   VS_I_MV_TOP = VS_I_FLAGS,
51   VS_I_MV_BOTTOM = VS_I_EB,
52
53   NUM_VS_INPUTS
54};
55
56struct vl_vertex_buffer
57{
58   unsigned width, height;
59   unsigned num_instances;
60
61   struct pipe_resource *resource;
62   struct pipe_transfer *transfer;
63   struct vl_vertex_stream *buffer;
64
65   struct {
66      struct pipe_resource       *resource;
67      struct pipe_transfer       *transfer;
68      struct vl_mv_vertex_stream *vertex_stream;
69   } mv[VL_MAX_REF_FRAMES];
70};
71
72struct pipe_vertex_buffer vl_vb_upload_quads(struct pipe_context *pipe,
73                                             unsigned blocks_x, unsigned blocks_y);
74
75struct pipe_vertex_buffer vl_vb_upload_pos(struct pipe_context *pipe, unsigned width, unsigned height);
76
77void *vl_vb_get_ves_eb(struct pipe_context *pipe, int component);
78
79void *vl_vb_get_ves_mv(struct pipe_context *pipe);
80
81void vl_vb_init(struct vl_vertex_buffer *buffer,
82                struct pipe_context *pipe,
83                unsigned width, unsigned height);
84
85struct pipe_vertex_buffer vl_vb_get_ycbcr(struct vl_vertex_buffer *buffer);
86
87struct pipe_vertex_buffer vl_vb_get_mv(struct vl_vertex_buffer *buffer, int motionvector);
88
89void vl_vb_map(struct vl_vertex_buffer *buffer, struct pipe_context *pipe);
90
91void vl_vb_add_block(struct vl_vertex_buffer *buffer, struct pipe_mpeg12_macroblock *mb,
92                     const unsigned (*empty_block_mask)[3][2][2]);
93
94void vl_vb_unmap(struct vl_vertex_buffer *buffer, struct pipe_context *pipe);
95
96unsigned vl_vb_restart(struct vl_vertex_buffer *buffer);
97
98void vl_vb_cleanup(struct vl_vertex_buffer *buffer);
99
100#endif /* vl_vertex_buffers_h */
101