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 <assert.h>
  31 #include <pipe/p_state.h>
  32 #include <pipe/p_video_state.h>
  33 #include "vl_types.h"
  34
  35 enum VS_INPUT
  36 {
  37    VS_I_RECT,
  38    VS_I_VPOS,
  39    VS_I_EB_0_0,
  40    VS_I_EB_0_1,
  41    VS_I_EB_1_0,
  42    VS_I_EB_1_1,
  43    VS_I_MV0,
  44    VS_I_MV1,
  45    VS_I_MV2,
  46    VS_I_MV3,
  47
  48    NUM_VS_INPUTS
  49 };
  50
  51 struct vl_vertex_buffer
  52 {
  53    unsigned size;
  54    unsigned num_not_empty;
  55    unsigned num_empty;
  56    struct pipe_resource *resource;
  57    struct pipe_transfer *transfer;
  58    struct vl_vertex_stream *start;
  59    struct vl_vertex_stream *end;
  60 };
  61
  62 struct pipe_vertex_buffer vl_vb_upload_quads(struct pipe_context *pipe,
  63                                              unsigned blocks_x, unsigned blocks_y);
  64
  65 void *vl_vb_get_elems_state(struct pipe_context *pipe, bool include_mvs);
  66
  67 struct pipe_vertex_buffer vl_vb_init(struct vl_vertex_buffer *buffer,
  68                                      struct pipe_context *pipe,
  69                                      unsigned max_blocks);
  70
  71 void vl_vb_map(struct vl_vertex_buffer *buffer, struct pipe_context *pipe);
  72
  73 void vl_vb_add_block(struct vl_vertex_buffer *buffer, struct pipe_mpeg12_macroblock *mb,
  74                      const unsigned (*empty_block_mask)[3][2][2]);
  75
  76 void vl_vb_unmap(struct vl_vertex_buffer *buffer, struct pipe_context *pipe);
  77
  78 void vl_vb_restart(struct vl_vertex_buffer *buffer,
  79                    unsigned *not_empty_start_instance, unsigned *not_empty_num_instances,
  80                    unsigned *empty_start_instance, unsigned *empty_num_instances);
  81
  82 void vl_vb_cleanup(struct vl_vertex_buffer *buffer);
  83
  84 #endif