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
  41    unsigned max_blocks;
  42
  43    void *rs_state;
  44    void *vertex_elems_state;
  45
  46    union
  47    {
  48       void *all[4];
  49       void *stage[2][2];
  50       struct {
  51          void *matrix, *source;
  52          void *transpose, *intermediate;
  53       } individual;
  54    } samplers;
  55
  56    void *vs;
  57    void *matrix_fs, *transpose_fs;
  58
  59    struct pipe_resource *matrix;
  60    struct pipe_vertex_buffer quad;
  61
  62    unsigned vertex_buffer_stride;
  63 };
  64
  65 struct vl_idct_buffer
  66 {
  67    struct pipe_viewport_state viewport[2];
  68    struct pipe_framebuffer_state fb_state[2];
  69
  70    struct pipe_resource *destination;
  71
  72    union
  73    {
  74       struct pipe_sampler_view *all[4];
  75       struct pipe_sampler_view *stage[2][2];
  76       struct {
  77          struct pipe_sampler_view *matrix, *source;
  78          struct pipe_sampler_view *transpose, *intermediate;
  79       } individual;
  80    } sampler_views;
  81
  82    union
  83    {
  84       struct pipe_resource *all[4];
  85       struct pipe_resource *stage[2][2];
  86       struct {
  87          struct pipe_resource *matrix, *source;
  88          struct pipe_resource *transpose, *intermediate;
  89       } individual;
  90    } textures;
  91
  92    union
  93    {
  94       struct pipe_vertex_buffer all[2];
  95       struct { struct pipe_vertex_buffer quad, pos; } individual;
  96    } vertex_bufs;
  97
  98    struct vl_vertex_buffer blocks;
  99
 100    struct pipe_transfer *tex_transfer;
 101    short *texels;
 102 };
 103
 104 struct pipe_resource *vl_idct_upload_matrix(struct pipe_context *pipe);
 105
 106 bool vl_idct_init(struct vl_idct *idct, struct pipe_context *pipe,
 107                   unsigned buffer_width, unsigned buffer_height,
 108                   struct pipe_resource *matrix);
 109
 110 void vl_idct_cleanup(struct vl_idct *idct);
 111
 112 bool vl_idct_init_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer, struct pipe_resource *dst);
 113
 114 void vl_idct_cleanup_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer);
 115
 116 void vl_idct_map_buffers(struct vl_idct *idct, struct vl_idct_buffer *buffer);
 117
 118 void vl_idct_add_block(struct vl_idct_buffer *buffer, unsigned x, unsigned y, short *block);
 119
 120 void vl_idct_unmap_buffers(struct vl_idct *idct, struct vl_idct_buffer *buffer);
 121
 122 void vl_idct_flush(struct vl_idct *idct, struct vl_idct_buffer *buffer);
 123
 124 #endif