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Member "mesa-20.1.8/src/gallium/auxiliary/vl/vl_vertex_buffers.h" (16 Sep 2020, 3988 Bytes) of package /linux/misc/mesa-20.1.8.tar.xz:


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    1 /**************************************************************************
    2  *
    3  * Copyright 2010 Christian K├Ânig
    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 #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 */