vl_zscan.h revision 912dc8ff09cd7c28926762c2e562de5a99d3e27a 
1/**************************************************************************
2 *
3 * Copyright 2011 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_zscan_h
29#define vl_zscan_h
30
31#include <pipe/p_compiler.h>
32#include <pipe/p_state.h>
33
34/*
35 * shader based zscan and quantification
36 * expect usage of vl_vertex_buffers as a todo list
37 */
38struct vl_zscan
39{
40   struct pipe_context *pipe;
41
42   unsigned buffer_width;
43   unsigned buffer_height;
44
45   unsigned num_channels;
46
47   unsigned blocks_per_line;
48   unsigned blocks_total;
49
50   void *rs_state;
51   void *blend;
52
53   void *samplers[3];
54
55   void *vs, *fs;
56};
57
58struct vl_zscan_buffer
59{
60   struct vl_zscan *zscan;
61
62   struct pipe_viewport_state viewport;
63   struct pipe_framebuffer_state fb_state;
64
65   struct pipe_sampler_view *src, *layout, *quant;
66   struct pipe_surface *dst;
67};
68
69extern const int vl_zscan_linear[];
70extern const int vl_zscan_normal[];
71extern const int vl_zscan_alternate[];
72
73struct pipe_sampler_view *
74vl_zscan_layout(struct pipe_context *pipe, const int layout[64], unsigned blocks_per_line);
75
76bool
77vl_zscan_init(struct vl_zscan *zscan, struct pipe_context *pipe,
78              unsigned buffer_width, unsigned buffer_height,
79              unsigned blocks_per_line, unsigned blocks_total,
80              unsigned num_channels);
81
82void
83vl_zscan_cleanup(struct vl_zscan *zscan);
84
85bool
86vl_zscan_init_buffer(struct vl_zscan *zscan, struct vl_zscan_buffer *buffer,
87                     struct pipe_sampler_view *src, struct pipe_surface *dst);
88
89void
90vl_zscan_cleanup_buffer(struct vl_zscan_buffer *buffer);
91
92void
93vl_zscan_set_layout(struct vl_zscan_buffer *buffer, struct pipe_sampler_view *layout);
94
95void
96vl_zscan_upload_quant(struct vl_zscan_buffer *buffer,
97                      const uint8_t intra_matrix[64],
98                      const uint8_t non_intra_matrix[64]);
99
100void
101vl_zscan_render(struct vl_zscan_buffer *buffer, unsigned num_instances);
102
103#endif
104