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/**************************************************************************
*
* Copyright 2009 Younes Manton.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#ifndef PIPE_VIDEO_CONTEXT_H
#define PIPE_VIDEO_CONTEXT_H
#ifdef __cplusplus
extern "C" {
#endif
#include "pipe/p_video_state.h"
struct pipe_screen;
struct pipe_surface;
struct pipe_macroblock;
struct pipe_picture_desc;
struct pipe_fence_handle;
/**
* Gallium video decoder for a specific codec/profile
*/
struct pipe_video_decoder
{
struct pipe_context *context;
enum pipe_video_profile profile;
enum pipe_video_entrypoint entrypoint;
enum pipe_video_chroma_format chroma_format;
unsigned width;
unsigned height;
unsigned max_references;
/**
* destroy this video decoder
*/
void (*destroy)(struct pipe_video_decoder *decoder);
/**
* Creates a decoder buffer
*/
void *(*create_buffer)(struct pipe_video_decoder *decoder);
/**
* Destroys a decoder buffer
*/
void (*destroy_buffer)(struct pipe_video_decoder *decoder, void *buffer);
/**
* set the current decoder buffer
*/
void (*set_decode_buffer)(struct pipe_video_decoder *decoder, void *buffer);
/**
* set the picture parameters for the next frame
* only used for bitstream decoding
*/
void (*set_picture_parameters)(struct pipe_video_decoder *decoder,
struct pipe_picture_desc *picture);
/**
* set the quantification matrixes
*/
void (*set_quant_matrix)(struct pipe_video_decoder *decoder,
const struct pipe_quant_matrix *matrix);
/**
* set target where video data is decoded to
*/
void (*set_decode_target)(struct pipe_video_decoder *decoder,
struct pipe_video_buffer *target);
/**
* set reference frames for motion compensation
*/
void (*set_reference_frames)(struct pipe_video_decoder *decoder,
struct pipe_video_buffer **ref_frames,
unsigned num_ref_frames);
/**
* start decoding of a new frame
*/
void (*begin_frame)(struct pipe_video_decoder *decoder);
/**
* decode a macroblock
*/
void (*decode_macroblock)(struct pipe_video_decoder *decoder,
const struct pipe_macroblock *macroblocks,
unsigned num_macroblocks);
/**
* decode a bitstream
*/
void (*decode_bitstream)(struct pipe_video_decoder *decoder,
unsigned num_buffers,
const void * const *buffers,
const unsigned *sizes);
/**
* end decoding of the current frame
*/
void (*end_frame)(struct pipe_video_decoder *decoder);
/**
* flush any outstanding command buffers to the hardware
* should be called before a video_buffer is acessed by the state tracker again
*/
void (*flush)(struct pipe_video_decoder *decoder);
};
/**
* output for decoding / input for displaying
*/
struct pipe_video_buffer
{
struct pipe_context *context;
enum pipe_format buffer_format;
enum pipe_video_chroma_format chroma_format;
unsigned width;
unsigned height;
/**
* destroy this video buffer
*/
void (*destroy)(struct pipe_video_buffer *buffer);
/**
* get a individual sampler view for each plane
*/
struct pipe_sampler_view **(*get_sampler_view_planes)(struct pipe_video_buffer *buffer);
/**
* get a individual sampler view for each component
*/
struct pipe_sampler_view **(*get_sampler_view_components)(struct pipe_video_buffer *buffer);
/**
* get a individual surfaces for each plane
*/
struct pipe_surface **(*get_surfaces)(struct pipe_video_buffer *buffer);
};
#ifdef __cplusplus
}
#endif
#endif /* PIPE_VIDEO_CONTEXT_H */
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