vl_idct.h revision 37a548c9d1db6bbf8712277f678d850f34d0e445 
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
34struct 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
44   union
45   {
46      void *all[4];
47      void *stage[2][2];
48      struct {
49         void *matrix, *source;
50         void *transpose, *intermediate;
51      } individual;
52   } samplers;
53
54   void *matrix_vs, *transpose_vs;
55   void *matrix_fs, *transpose_fs;
56
57   struct pipe_resource *matrix;
58};
59
60struct vl_idct_buffer
61{
62   struct pipe_viewport_state viewport[2];
63   struct pipe_framebuffer_state fb_state[2];
64
65   struct pipe_resource *destination;
66
67   union
68   {
69      struct pipe_sampler_view *all[4];
70      struct pipe_sampler_view *stage[2][2];
71      struct {
72         struct pipe_sampler_view *matrix, *source;
73         struct pipe_sampler_view *transpose, *intermediate;
74      } individual;
75   } sampler_views;
76
77   union
78   {
79      struct pipe_resource *all[4];
80      struct pipe_resource *stage[2][2];
81      struct {
82         struct pipe_resource *matrix, *source;
83         struct pipe_resource *transpose, *intermediate;
84      } individual;
85   } textures;
86
87   struct pipe_transfer *tex_transfer;
88   short *texels;
89};
90
91struct pipe_resource *vl_idct_upload_matrix(struct pipe_context *pipe);
92
93bool vl_idct_init(struct vl_idct *idct, struct pipe_context *pipe,
94                  unsigned buffer_width, unsigned buffer_height,
95                  unsigned blocks_x, unsigned blocks_y,
96                  int color_swizzle, struct pipe_resource *matrix);
97
98void vl_idct_cleanup(struct vl_idct *idct);
99
100bool vl_idct_init_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer,
101                         struct pipe_resource *dst);
102
103void vl_idct_cleanup_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer);
104
105void vl_idct_map_buffers(struct vl_idct *idct, struct vl_idct_buffer *buffer);
106
107void vl_idct_add_block(struct vl_idct_buffer *buffer, unsigned x, unsigned y, short *block);
108
109void vl_idct_unmap_buffers(struct vl_idct *idct, struct vl_idct_buffer *buffer);
110
111void vl_idct_flush(struct vl_idct *idct, struct vl_idct_buffer *buffer, unsigned num_verts);
112
113#endif
114