vl_vertex_buffers.h revision 19bcd21ed151cf1716f2f87dff0f712231aa2ce7 
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 = 0,
45   VS_I_VPOS = 1,
46
47   VS_I_BLOCK_NUM = 2,
48
49   VS_I_MV_TOP = 2,
50   VS_I_MV_BOTTOM = 3,
51
52   NUM_VS_INPUTS = 4
53};
54
55enum vl_mv_weight
56{
57   PIPE_VIDEO_MV_WEIGHT_MIN = 0,
58   PIPE_VIDEO_MV_WEIGHT_HALF = 128,
59   PIPE_VIDEO_MV_WEIGHT_MAX = 256
60};
61
62enum vl_field_select
63{
64   PIPE_VIDEO_FRAME = 0,
65   PIPE_VIDEO_TOP_FIELD = 1,
66   PIPE_VIDEO_BOTTOM_FIELD = 3,
67
68   /* TODO
69   PIPE_VIDEO_DUALPRIME
70   PIPE_VIDEO_16x8
71   */
72};
73
74struct vl_motionvector
75{
76   struct {
77      int16_t x, y;
78      int16_t field_select; /**< enum pipe_video_field_select */
79      int16_t weight;  /**< enum pipe_video_mv_weight  */
80   } top, bottom;
81};
82
83struct vl_ycbcr_block
84{
85   uint8_t x, y;
86   uint8_t intra;
87   uint8_t coding;
88   float block_num;
89};
90
91struct vl_vertex_buffer
92{
93   unsigned width, height;
94
95   struct {
96      struct pipe_resource  *resource;
97      struct pipe_transfer  *transfer;
98      struct vl_ycbcr_block *vertex_stream;
99   } ycbcr[VL_MAX_PLANES];
100
101   struct {
102      struct pipe_resource   *resource;
103      struct pipe_transfer   *transfer;
104      struct vl_motionvector *vertex_stream;
105   } mv[VL_MAX_REF_FRAMES];
106};
107
108struct pipe_vertex_buffer vl_vb_upload_quads(struct pipe_context *pipe);
109
110struct pipe_vertex_buffer vl_vb_upload_pos(struct pipe_context *pipe, unsigned width, unsigned height);
111
112void *vl_vb_get_ves_ycbcr(struct pipe_context *pipe);
113
114void *vl_vb_get_ves_mv(struct pipe_context *pipe);
115
116bool vl_vb_init(struct vl_vertex_buffer *buffer,
117                struct pipe_context *pipe,
118                unsigned width, unsigned height);
119
120unsigned vl_vb_attributes_per_plock(struct vl_vertex_buffer *buffer);
121
122void vl_vb_map(struct vl_vertex_buffer *buffer, struct pipe_context *pipe);
123
124struct pipe_vertex_buffer vl_vb_get_ycbcr(struct vl_vertex_buffer *buffer, int component);
125
126struct vl_ycbcr_block *vl_vb_get_ycbcr_stream(struct vl_vertex_buffer *buffer, int component);
127
128struct pipe_vertex_buffer vl_vb_get_mv(struct vl_vertex_buffer *buffer, int ref_frame);
129
130unsigned vl_vb_get_mv_stream_stride(struct vl_vertex_buffer *buffer);
131
132struct vl_motionvector *vl_vb_get_mv_stream(struct vl_vertex_buffer *buffer, int ref_frame);
133
134void vl_vb_unmap(struct vl_vertex_buffer *buffer, struct pipe_context *pipe);
135
136void vl_vb_cleanup(struct vl_vertex_buffer *buffer);
137
138#endif /* vl_vertex_buffers_h */
139