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 (*clear_surface)(struct pipe_video_context *vpipe,
  76                          unsigned x, unsigned y,
  77                          unsigned width, unsigned height,
  78                          unsigned value,
  79                          struct pipe_surface *surface);
  80
  81    void (*render_picture)(struct pipe_video_context     *vpipe,
  82                           /*struct pipe_surface         *backround,
  83                           struct pipe_video_rect        *backround_area,*/
  84                           struct pipe_video_surface     *src_surface,
  85                           enum pipe_mpeg12_picture_type picture_type,
  86                           /*unsigned                    num_past_surfaces,
  87                           struct pipe_video_surface     *past_surfaces,
  88                           unsigned                      num_future_surfaces,
  89                           struct pipe_video_surface     *future_surfaces,*/
  90                           struct pipe_video_rect        *src_area,
  91                           struct pipe_surface           *dst_surface,
  92                           struct pipe_video_rect        *dst_area,
  93                           /*unsigned                      num_layers,
  94                           struct pipe_texture           *layers,
  95                           struct pipe_video_rect        *layer_src_areas,
  96                           struct pipe_video_rect        *layer_dst_areas,*/
  97                           struct pipe_fence_handle      **fence);
  98    /*@}*/
  99
 100    /**
 101     * Parameter-like states (or properties)
 102     */
 103    /*@{*/
 104    void (*set_picture_desc)(struct pipe_video_context *vpipe,
 105                             const struct pipe_picture_desc *desc);
 106
 107    void (*set_decode_target)(struct pipe_video_context *vpipe,
 108                              struct pipe_video_surface *dt);
 109
 110    void (*set_csc_matrix)(struct pipe_video_context *vpipe, const float *mat);
 111
 112    /* TODO: Interface for scaling modes, post-processing, etc. */
 113    /*@}*/
 114 };
 115
 116
 117 #ifdef __cplusplus
 118 }
 119 #endif
 120
 121 #endif /* PIPE_VIDEO_CONTEXT_H */