src/gallium/include/pipe/p_video_state.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 Younes Manton.
   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
  28 #ifndef PIPE_VIDEO_STATE_H
  29 #define PIPE_VIDEO_STATE_H
  30
  31 #include <pipe/p_defines.h>
  32 #include <pipe/p_format.h>
  33 #include <pipe/p_state.h>
  34 #include <pipe/p_screen.h>
  35 #include <util/u_inlines.h>
  36
  37 #ifdef __cplusplus
  38 extern "C" {
  39 #endif
  40
  41 struct pipe_video_rect
  42 {
  43    unsigned x, y, w, h;
  44 };
  45
  46 enum pipe_mpeg12_picture_type
  47 {
  48    PIPE_MPEG12_PICTURE_TYPE_FIELD_TOP,
  49    PIPE_MPEG12_PICTURE_TYPE_FIELD_BOTTOM,
  50    PIPE_MPEG12_PICTURE_TYPE_FRAME
  51 };
  52
  53 enum pipe_mpeg12_dct_intra
  54 {
  55    PIPE_MPEG12_DCT_DELTA = 0,
  56    PIPE_MPEG12_DCT_INTRA = 1
  57 };
  58
  59 enum pipe_mpeg12_dct_type
  60 {
  61    PIPE_MPEG12_DCT_TYPE_FRAME = 0,
  62    PIPE_MPEG12_DCT_TYPE_FIELD = 1
  63 };
  64
  65 enum pipe_video_field_select
  66 {
  67    PIPE_VIDEO_FRAME = 0,
  68    PIPE_VIDEO_TOP_FIELD = 1,
  69    PIPE_VIDEO_BOTTOM_FIELD = 3,
  70
  71    /* TODO
  72    PIPE_VIDEO_DUALPRIME
  73    PIPE_VIDEO_16x8
  74    */
  75 };
  76
  77 enum pipe_video_mv_weight
  78 {
  79    PIPE_VIDEO_MV_WEIGHT_MIN = 0,
  80    PIPE_VIDEO_MV_WEIGHT_HALF = 128,
  81    PIPE_VIDEO_MV_WEIGHT_MAX = 256
  82 };
  83
  84 /* bitfields because this is used as a vertex buffer element */
  85 struct pipe_motionvector
  86 {
  87    struct {
  88       signed x:16, y:16;
  89       enum pipe_video_field_select field_select:16;
  90       enum pipe_video_mv_weight weight:16;
  91    } top, bottom;
  92 };
  93
  94 /* bitfields because this is used as a vertex buffer element */
  95 struct pipe_ycbcr_block
  96 {
  97    unsigned x:8, y:8;
  98    enum pipe_mpeg12_dct_intra intra:8;
  99    enum pipe_mpeg12_dct_type coding:8;
 100 };
 101
 102 struct pipe_picture_desc
 103 {
 104    enum pipe_video_profile profile;
 105 };
 106
 107 struct pipe_mpeg12_picture_desc
 108 {
 109    struct pipe_picture_desc base;
 110
 111    unsigned picture_coding_type;
 112    unsigned picture_structure;
 113    unsigned frame_pred_frame_dct;
 114    unsigned q_scale_type;
 115    unsigned alternate_scan;
 116    unsigned intra_dc_precision;
 117    unsigned intra_vlc_format;
 118    unsigned concealment_motion_vectors;
 119    unsigned f_code[2][2];
 120
 121    bool mpeg1;
 122    uint8_t *intra_quantizer_matrix;
 123    uint8_t *non_intra_quantizer_matrix;
 124
 125    /* predictor for DC coefficients in intra blocks */
 126    int16_t dc_dct_pred[3];
 127
 128    int quantizer_scale;
 129
 130 #if 0
 131    /* TODO: Use bitfields where possible? */
 132    unsigned top_field_first;
 133    unsigned full_pel_forward_vector;
 134    unsigned full_pel_backward_vector;
 135    struct pipe_buffer *chroma_intra_quantizer_matrix;
 136    struct pipe_buffer *chroma_non_intra_quantizer_matrix;
 137 #endif
 138 };
 139
 140 #ifdef __cplusplus
 141 }
 142 #endif
 143
 144 #endif /* PIPE_VIDEO_STATE_H */