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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 vl_mpeg12_decoder_h
#define vl_mpeg12_decoder_h
#include "pipe/p_video_decoder.h"
#include "vl_mpeg12_bitstream.h"
#include "vl_zscan.h"
#include "vl_idct.h"
#include "vl_mc.h"
#include "vl_vertex_buffers.h"
#include "vl_video_buffer.h"
struct pipe_screen;
struct pipe_context;
struct vl_mpeg12_decoder
{
struct pipe_video_decoder base;
unsigned chroma_width, chroma_height;
unsigned blocks_per_line;
unsigned num_blocks;
unsigned width_in_macroblocks;
bool expect_chunked_decode;
enum pipe_format zscan_source_format;
struct pipe_vertex_buffer quads;
struct pipe_vertex_buffer pos;
void *ves_ycbcr;
void *ves_mv;
void *sampler_ycbcr;
struct pipe_sampler_view *zscan_linear;
struct pipe_sampler_view *zscan_normal;
struct pipe_sampler_view *zscan_alternate;
struct pipe_video_buffer *idct_source;
struct pipe_video_buffer *mc_source;
struct vl_zscan zscan_y, zscan_c;
struct vl_idct idct_y, idct_c;
struct vl_mc mc_y, mc_c;
void *dsa;
unsigned current_buffer;
struct vl_mpeg12_buffer *dec_buffers[4];
};
struct vl_mpeg12_buffer
{
struct vl_vertex_buffer vertex_stream;
unsigned block_num;
unsigned num_ycbcr_blocks[3];
struct pipe_sampler_view *zscan_source;
struct vl_mpg12_bs bs;
struct vl_zscan_buffer zscan[VL_NUM_COMPONENTS];
struct vl_idct_buffer idct[VL_NUM_COMPONENTS];
struct vl_mc_buffer mc[VL_NUM_COMPONENTS];
struct pipe_transfer *tex_transfer;
short *texels;
struct vl_ycbcr_block *ycbcr_stream[VL_NUM_COMPONENTS];
struct vl_motionvector *mv_stream[VL_MAX_REF_FRAMES];
};
/**
* creates a shader based mpeg12 decoder
*/
struct pipe_video_decoder *
vl_create_mpeg12_decoder(struct pipe_context *pipe,
enum pipe_video_profile profile,
enum pipe_video_entrypoint entrypoint,
enum pipe_video_chroma_format chroma_format,
unsigned width, unsigned height, unsigned max_references,
bool expect_chunked_decode);
#endif /* vl_mpeg12_decoder_h */
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