src/gallium/auxiliary/vl/vl_vertex_buffers.h

   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,
  45    VS_I_VPOS,
  46
  47    VS_I_MV_TOP,
  48    VS_I_MV_BOTTOM,
  49
  50    NUM_VS_INPUTS
  51 };
  52
  53 struct vl_vertex_buffer
  54 {
  55    unsigned width, height;
  56
  57    struct {
  58       struct pipe_resource    *resource;
  59       struct pipe_transfer    *transfer;
  60       struct pipe_ycbcr_block *vertex_stream;
  61    } ycbcr[VL_MAX_PLANES];
  62
  63    struct {
  64       struct pipe_resource     *resource;
  65       struct pipe_transfer     *transfer;
  66       struct pipe_motionvector *vertex_stream;
  67    } mv[VL_MAX_REF_FRAMES];
  68 };
  69
  70 struct pipe_vertex_buffer vl_vb_upload_quads(struct pipe_context *pipe);
  71
  72 struct pipe_vertex_buffer vl_vb_upload_pos(struct pipe_context *pipe, unsigned width, unsigned height);
  73
  74 void *vl_vb_get_ves_ycbcr(struct pipe_context *pipe);
  75
  76 void *vl_vb_get_ves_mv(struct pipe_context *pipe);
  77
  78 void vl_vb_init(struct vl_vertex_buffer *buffer,
  79                 struct pipe_context *pipe,
  80                 unsigned width, unsigned height);
  81
  82 void vl_vb_map(struct vl_vertex_buffer *buffer, struct pipe_context *pipe);
  83
  84 struct pipe_vertex_buffer vl_vb_get_ycbcr(struct vl_vertex_buffer *buffer, int component);
  85
  86 struct pipe_ycbcr_block *vl_vb_get_ycbcr_stream(struct vl_vertex_buffer *buffer, int component);
  87
  88 struct pipe_vertex_buffer vl_vb_get_mv(struct vl_vertex_buffer *buffer, int ref_frame);
  89
  90 unsigned vl_vb_get_mv_stream_stride(struct vl_vertex_buffer *buffer);
  91
  92 struct pipe_motionvector *vl_vb_get_mv_stream(struct vl_vertex_buffer *buffer, int ref_frame);
  93
  94 void vl_vb_unmap(struct vl_vertex_buffer *buffer, struct pipe_context *pipe);
  95
  96 void vl_vb_cleanup(struct vl_vertex_buffer *buffer);
  97
  98 #endif /* vl_vertex_buffers_h */