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      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 VMWARE 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 vl_mpeg12_decoder_h
     29 #define vl_mpeg12_decoder_h
     30 
     31 #include "pipe/p_video_codec.h"
     32 
     33 #include "util/list.h"
     34 
     35 #include "vl_mpeg12_bitstream.h"
     36 #include "vl_zscan.h"
     37 #include "vl_idct.h"
     38 #include "vl_mc.h"
     39 
     40 #include "vl_vertex_buffers.h"
     41 #include "vl_video_buffer.h"
     42 
     43 struct pipe_screen;
     44 struct pipe_context;
     45 
     46 struct vl_mpeg12_decoder
     47 {
     48    struct pipe_video_codec base;
     49    struct pipe_context *context;
     50 
     51    unsigned chroma_width, chroma_height;
     52 
     53    unsigned blocks_per_line;
     54    unsigned num_blocks;
     55    unsigned width_in_macroblocks;
     56 
     57    enum pipe_format zscan_source_format;
     58 
     59    struct pipe_vertex_buffer quads;
     60    struct pipe_vertex_buffer pos;
     61 
     62    void *ves_ycbcr;
     63    void *ves_mv;
     64 
     65    void *sampler_ycbcr;
     66 
     67    struct pipe_sampler_view *zscan_linear;
     68    struct pipe_sampler_view *zscan_normal;
     69    struct pipe_sampler_view *zscan_alternate;
     70 
     71    struct pipe_video_buffer *idct_source;
     72    struct pipe_video_buffer *mc_source;
     73 
     74    struct vl_zscan zscan_y, zscan_c;
     75    struct vl_idct idct_y, idct_c;
     76    struct vl_mc mc_y, mc_c;
     77 
     78    void *dsa;
     79 
     80    unsigned current_buffer;
     81    struct vl_mpeg12_buffer *dec_buffers[4];
     82 
     83    struct list_head buffer_privates;
     84 };
     85 
     86 struct vl_mpeg12_buffer
     87 {
     88    struct vl_vertex_buffer vertex_stream;
     89 
     90    unsigned block_num;
     91    unsigned num_ycbcr_blocks[3];
     92 
     93    struct pipe_sampler_view *zscan_source;
     94 
     95    struct vl_mpg12_bs bs;
     96    struct vl_zscan_buffer zscan[VL_NUM_COMPONENTS];
     97    struct vl_idct_buffer idct[VL_NUM_COMPONENTS];
     98    struct vl_mc_buffer mc[VL_NUM_COMPONENTS];
     99 
    100    struct pipe_transfer *tex_transfer;
    101    short *texels;
    102 
    103    struct vl_ycbcr_block *ycbcr_stream[VL_NUM_COMPONENTS];
    104    struct vl_motionvector *mv_stream[VL_MAX_REF_FRAMES];
    105 };
    106 
    107 /**
    108  * creates a shader based mpeg12 decoder
    109  */
    110 struct pipe_video_codec *
    111 vl_create_mpeg12_decoder(struct pipe_context *pipe,
    112                          const struct pipe_video_codec *templat);
    113 
    114 #endif /* vl_mpeg12_decoder_h */
    115