src/gallium/auxiliary/vl/vl_idct.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
  28 #ifndef vl_idct_h
  29 #define vl_idct_h
  30
  31 #include <pipe/p_state.h>
  32 #include "vl_vertex_buffers.h"
  33
  34 struct vl_idct
  35 {
  36    struct pipe_context *pipe;
  37
  38    unsigned buffer_width;
  39    unsigned buffer_height;
  40    unsigned blocks_x, blocks_y;
  41
  42    void *rs_state;
  43    void *vertex_elems_state;
  44
  45    union
  46    {
  47       void *all[4];
  48       void *stage[2][2];
  49       struct {
  50          void *matrix, *source;
  51          void *transpose, *intermediate;
  52       } individual;
  53    } samplers;
  54
  55    void *matrix_vs, *transpose_vs;
  56    void *matrix_fs, *transpose_fs;
  57
  58    struct pipe_resource *matrix;
  59    struct pipe_vertex_buffer quad;
  60 };
  61
  62 struct vl_idct_buffer
  63 {
  64    struct pipe_viewport_state viewport[2];
  65    struct pipe_framebuffer_state fb_state[2];
  66
  67    struct pipe_resource *destination;
  68
  69    union
  70    {
  71       struct pipe_sampler_view *all[4];
  72       struct pipe_sampler_view *stage[2][2];
  73       struct {
  74          struct pipe_sampler_view *matrix, *source;
  75          struct pipe_sampler_view *transpose, *intermediate;
  76       } individual;
  77    } sampler_views;
  78
  79    union
  80    {
  81       struct pipe_resource *all[4];
  82       struct pipe_resource *stage[2][2];
  83       struct {
  84          struct pipe_resource *matrix, *source;
  85          struct pipe_resource *transpose, *intermediate;
  86       } individual;
  87    } textures;
  88
  89    union
  90    {
  91       struct pipe_vertex_buffer all[2];
  92       struct { struct pipe_vertex_buffer quad, stream; } individual;
  93    } vertex_bufs;
  94
  95    struct pipe_transfer *tex_transfer;
  96    short *texels;
  97 };
  98
  99 struct pipe_resource *vl_idct_upload_matrix(struct pipe_context *pipe);
 100
 101 bool vl_idct_init(struct vl_idct *idct, struct pipe_context *pipe,
 102                   unsigned buffer_width, unsigned buffer_height,
 103                   unsigned blocks_x, unsigned blocks_y,
 104                   int color_swizzle, struct pipe_resource *matrix);
 105
 106 void vl_idct_cleanup(struct vl_idct *idct);
 107
 108 bool vl_idct_init_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer,
 109                          struct pipe_resource *dst, struct pipe_vertex_buffer stream);
 110
 111 void vl_idct_cleanup_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer);
 112
 113 void vl_idct_map_buffers(struct vl_idct *idct, struct vl_idct_buffer *buffer);
 114
 115 void vl_idct_add_block(struct vl_idct_buffer *buffer, unsigned x, unsigned y, short *block);
 116
 117 void vl_idct_unmap_buffers(struct vl_idct *idct, struct vl_idct_buffer *buffer);
 118
 119 void vl_idct_flush(struct vl_idct *idct, struct vl_idct_buffer *buffer, unsigned num_verts);
 120
 121 #endif