vl_idct.h revision be4de05c1093db27b3fca12b782055ab8a1eba13 
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
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 *matrix_vs, *transpose_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
65struct 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
104struct pipe_resource *vl_idct_upload_matrix(struct pipe_context *pipe);
105
106bool vl_idct_init(struct vl_idct *idct, struct pipe_context *pipe,
107                  unsigned buffer_width, unsigned buffer_height,
108                  struct pipe_resource *matrix);
109
110void vl_idct_cleanup(struct vl_idct *idct);
111
112bool vl_idct_init_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer, struct pipe_resource *dst);
113
114void vl_idct_cleanup_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer);
115
116void vl_idct_map_buffers(struct vl_idct *idct, struct vl_idct_buffer *buffer);
117
118void vl_idct_add_block(struct vl_idct_buffer *buffer, unsigned x, unsigned y, short *block);
119
120void vl_idct_unmap_buffers(struct vl_idct *idct, struct vl_idct_buffer *buffer);
121
122void vl_idct_flush(struct vl_idct *idct, struct vl_idct_buffer *buffer);
123
124#endif
125