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
  33 struct vl_idct
  34 {
  35    struct pipe_context *pipe;
  36
  37    unsigned max_blocks;
  38
  39    struct pipe_viewport_state viewport[2];
  40    struct pipe_framebuffer_state fb_state[2];
  41
  42    struct pipe_resource *destination;
  43
  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    union
  57    {
  58       struct pipe_sampler_view *all[4];
  59       struct pipe_sampler_view *stage[2][2];
  60       struct {
  61          struct pipe_sampler_view *matrix, *source;
  62          struct pipe_sampler_view *transpose, *intermediate;
  63       } individual;
  64    } sampler_views;
  65
  66    void *matrix_vs, *transpose_vs, *eb_vs;
  67    void *matrix_fs, *transpose_fs, *eb_fs;
  68
  69    union
  70    {
  71       struct pipe_resource *all[4];
  72       struct pipe_resource *stage[2][2];
  73       struct {
  74          struct pipe_resource *matrix, *source;
  75          struct pipe_resource *transpose, *intermediate;
  76       } individual;
  77    } textures;
  78
  79    union
  80    {
  81       struct pipe_vertex_buffer all[2];
  82       struct { struct pipe_vertex_buffer quad, pos; } individual;
  83    } vertex_bufs;
  84
  85    unsigned num_blocks;
  86    unsigned num_empty_blocks;
  87
  88    struct pipe_transfer *tex_transfer;
  89    short *texels;
  90
  91    struct pipe_transfer *vec_transfer;
  92    struct vertex2f *vectors;
  93 };
  94
  95 struct pipe_resource *vl_idct_upload_matrix(struct pipe_context *pipe);
  96
  97 bool vl_idct_init(struct vl_idct *idct, struct pipe_context *pipe, struct pipe_resource *dst, struct pipe_resource *matrix);
  98
  99 void vl_idct_cleanup(struct vl_idct *idct);
 100
 101 void vl_idct_add_block(struct vl_idct *idct, unsigned x, unsigned y, short *block);
 102
 103 void vl_idct_flush(struct vl_idct *idct);
 104
 105 #endif