src/gallium/include/pipe/p_video_context.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_CONTEXT_H
  29 #define PIPE_VIDEO_CONTEXT_H
  30
  31 #ifdef __cplusplus
  32 extern "C" {
  33 #endif
  34
  35 #include <pipe/p_video_state.h>
  36
  37 struct pipe_screen;
  38 struct pipe_buffer;
  39 struct pipe_surface;
  40 struct pipe_video_surface;
  41 struct pipe_macroblock;
  42 struct pipe_picture_desc;
  43 struct pipe_fence_handle;
  44
  45 /**
  46  * Gallium video rendering context
  47  */
  48 struct pipe_video_context
  49 {
  50    struct pipe_screen *screen;
  51    enum pipe_video_profile profile;
  52    enum pipe_video_chroma_format chroma_format;
  53    unsigned width;
  54    unsigned height;
  55
  56    void *priv; /**< context private data (for DRI for example) */
  57
  58    void (*destroy)(struct pipe_video_context *vpipe);
  59
  60    /**
  61     * Picture decoding and displaying
  62     */
  63    /*@{*/
  64    void (*decode_bitstream)(struct pipe_video_context *vpipe,
  65                             unsigned num_bufs,
  66                             struct pipe_buffer **bitstream_buf);
  67
  68    void (*decode_macroblocks)(struct pipe_video_context *vpipe,
  69                               struct pipe_video_surface *past,
  70                               struct pipe_video_surface *future,
  71                               unsigned num_macroblocks,
  72                               struct pipe_macroblock *macroblocks,
  73                               struct pipe_fence_handle **fence);
  74
  75    void (*render_picture)(struct pipe_video_context     *vpipe,
  76                           /*struct pipe_surface         *backround,
  77                           struct pipe_video_rect        *backround_area,*/
  78                           struct pipe_video_surface     *src_surface,
  79                           enum pipe_mpeg12_picture_type picture_type,
  80                           /*unsigned                    num_past_surfaces,
  81                           struct pipe_video_surface     *past_surfaces,
  82                           unsigned                      num_future_surfaces,
  83                           struct pipe_video_surface     *future_surfaces,*/
  84                           struct pipe_video_rect        *src_area,
  85                           struct pipe_surface           *dst_surface,
  86                           struct pipe_video_rect        *dst_area,
  87                           /*unsigned                      num_layers,
  88                           struct pipe_texture           *layers,
  89                           struct pipe_video_rect        *layer_src_areas,
  90                           struct pipe_video_rect        *layer_dst_areas,*/
  91                           struct pipe_fence_handle      **fence);
  92
  93    void (*surface_fill)(struct pipe_video_context *vpipe,
  94                         struct pipe_surface *dst,
  95                         unsigned dstx, unsigned dsty,
  96                         unsigned width, unsigned height,
  97                         unsigned value);
  98
  99    void (*surface_copy)(struct pipe_video_context *vpipe,
 100                         struct pipe_surface *dst,
 101                         unsigned dstx, unsigned dsty,
 102                         struct pipe_surface *src,
 103                         unsigned srcx, unsigned srcy,
 104                         unsigned width, unsigned height);
 105
 106    /*@}*/
 107
 108    /**
 109     * Parameter-like states (or properties)
 110     */
 111    /*@{*/
 112    void (*set_picture_background)(struct pipe_video_context *vpipe,
 113                                   struct pipe_texture *bg,
 114                                   struct pipe_video_rect *bg_src_rect);
 115
 116    void (*set_picture_layers)(struct pipe_video_context *vpipe,
 117                               struct pipe_texture *layers[],
 118                               struct pipe_video_rect *src_rects[],
 119                               struct pipe_video_rect *dst_rects[],
 120                               unsigned num_layers);
 121
 122    void (*set_picture_desc)(struct pipe_video_context *vpipe,
 123                             const struct pipe_picture_desc *desc);
 124
 125    void (*set_decode_target)(struct pipe_video_context *vpipe,
 126                              struct pipe_video_surface *dt);
 127
 128    void (*set_csc_matrix)(struct pipe_video_context *vpipe, const float *mat);
 129
 130    /* TODO: Interface for scaling modes, post-processing, etc. */
 131    /*@}*/
 132 };
 133
 134
 135 #ifdef __cplusplus
 136 }
 137 #endif
 138
 139 #endif /* PIPE_VIDEO_CONTEXT_H */