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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2010 Christian König
  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. #ifndef vl_vertex_buffers_h
  28. #define vl_vertex_buffers_h
  29.  
  30. #include "pipe/p_state.h"
  31. #include "pipe/p_video_state.h"
  32.  
  33. #include "vl_defines.h"
  34. #include "vl_types.h"
  35.  
  36. /* vertex buffers act as a todo list
  37.  * uploading all the usefull informations to video ram
  38.  * so a vertex shader can work with them
  39.  */
  40.  
  41. /* inputs to the vertex shaders */
  42. enum VS_INPUT
  43. {
  44.    VS_I_RECT = 0,
  45.    VS_I_VPOS = 1,
  46.  
  47.    VS_I_BLOCK_NUM = 2,
  48.  
  49.    VS_I_MV_TOP = 2,
  50.    VS_I_MV_BOTTOM = 3,
  51.  
  52.    NUM_VS_INPUTS = 4
  53. };
  54.  
  55. enum vl_mv_weight
  56. {
  57.    PIPE_VIDEO_MV_WEIGHT_MIN = 0,
  58.    PIPE_VIDEO_MV_WEIGHT_HALF = 128,
  59.    PIPE_VIDEO_MV_WEIGHT_MAX = 256
  60. };
  61.  
  62. enum vl_field_select
  63. {
  64.    PIPE_VIDEO_FRAME = 0,
  65.    PIPE_VIDEO_TOP_FIELD = 1,
  66.    PIPE_VIDEO_BOTTOM_FIELD = 3,
  67.  
  68.    /* TODO
  69.    PIPE_VIDEO_DUALPRIME
  70.    PIPE_VIDEO_16x8
  71.    */
  72. };
  73.  
  74. struct vl_motionvector
  75. {
  76.    struct {
  77.       int16_t x, y;
  78.       int16_t field_select; /**< enum pipe_video_field_select */
  79.       int16_t weight;  /**< enum pipe_video_mv_weight  */
  80.    } top, bottom;
  81. };
  82.  
  83. struct vl_ycbcr_block
  84. {
  85.    uint8_t x, y;
  86.    uint8_t intra;
  87.    uint8_t coding;
  88.    float block_num;
  89. };
  90.  
  91. struct vl_vertex_buffer
  92. {
  93.    unsigned width, height;
  94.  
  95.    struct {
  96.       struct pipe_resource  *resource;
  97.       struct pipe_transfer  *transfer;
  98.       struct vl_ycbcr_block *vertex_stream;
  99.    } ycbcr[VL_NUM_COMPONENTS];
  100.  
  101.    struct {
  102.       struct pipe_resource   *resource;
  103.       struct pipe_transfer   *transfer;
  104.       struct vl_motionvector *vertex_stream;
  105.    } mv[VL_MAX_REF_FRAMES];
  106. };
  107.  
  108. struct pipe_vertex_buffer vl_vb_upload_quads(struct pipe_context *pipe);
  109.  
  110. struct pipe_vertex_buffer vl_vb_upload_pos(struct pipe_context *pipe, unsigned width, unsigned height);
  111.  
  112. void *vl_vb_get_ves_ycbcr(struct pipe_context *pipe);
  113.  
  114. void *vl_vb_get_ves_mv(struct pipe_context *pipe);
  115.  
  116. bool vl_vb_init(struct vl_vertex_buffer *buffer,
  117.                 struct pipe_context *pipe,
  118.                 unsigned width, unsigned height);
  119.  
  120. unsigned vl_vb_attributes_per_plock(struct vl_vertex_buffer *buffer);
  121.  
  122. void vl_vb_map(struct vl_vertex_buffer *buffer, struct pipe_context *pipe);
  123.  
  124. struct pipe_vertex_buffer vl_vb_get_ycbcr(struct vl_vertex_buffer *buffer, int component);
  125.  
  126. struct vl_ycbcr_block *vl_vb_get_ycbcr_stream(struct vl_vertex_buffer *buffer, int component);
  127.  
  128. struct pipe_vertex_buffer vl_vb_get_mv(struct vl_vertex_buffer *buffer, int ref_frame);
  129.  
  130. unsigned vl_vb_get_mv_stream_stride(struct vl_vertex_buffer *buffer);
  131.  
  132. struct vl_motionvector *vl_vb_get_mv_stream(struct vl_vertex_buffer *buffer, int ref_frame);
  133.  
  134. void vl_vb_unmap(struct vl_vertex_buffer *buffer, struct pipe_context *pipe);
  135.  
  136. void vl_vb_cleanup(struct vl_vertex_buffer *buffer);
  137.  
  138. #endif /* vl_vertex_buffers_h */
  139.