shaders_cache.h revision e8ff3931f801dffdfd54832c298351e933688235 
1/**************************************************************************
2 *
3 * Copyright 2009 VMware, Inc.  All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
15 * of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 **************************************************************************/
26
27#ifndef SHADERS_CACHE_H
28#define SHADERS_CACHE_H
29
30
31struct vg_context;
32struct pipe_context;
33struct tgsi_token;
34struct shaders_cache;
35
36#define _SHADERS_PAINT_BITS            3
37#define _SHADERS_IMAGE_BITS            2
38#define _SHADERS_COLOR_TRANSFORM_BITS  1
39#define _SHADERS_ALPHA_BITS            2
40#define _SHADERS_BLEND_BITS            3
41#define _SHADERS_MASK_BITS             1
42#define _SHADERS_PREMULTIPLY_BITS      2
43#define _SHADERS_BW_BITS               1
44
45#define SHADERS_PAINT_SHIFT           (0)
46#define SHADERS_IMAGE_SHIFT           (SHADERS_PAINT_SHIFT + _SHADERS_PAINT_BITS)
47#define SHADERS_COLOR_TRANSFORM_SHIFT (SHADERS_IMAGE_SHIFT + _SHADERS_IMAGE_BITS)
48#define SHADERS_ALPHA_SHIFT           (SHADERS_COLOR_TRANSFORM_SHIFT + _SHADERS_COLOR_TRANSFORM_BITS)
49#define SHADERS_BLEND_SHIFT           (SHADERS_ALPHA_SHIFT + _SHADERS_ALPHA_BITS)
50#define SHADERS_MASK_SHIFT            (SHADERS_BLEND_SHIFT + _SHADERS_BLEND_BITS)
51#define SHADERS_PREMULTIPLY_SHIFT     (SHADERS_MASK_SHIFT + _SHADERS_MASK_BITS)
52#define SHADERS_BW_SHIFT              (SHADERS_PREMULTIPLY_SHIFT + _SHADERS_PREMULTIPLY_BITS)
53
54#define _SHADERS_GET_STAGE(stage, id) \
55   ((id) & (((1 << _SHADERS_ ## stage ## _BITS) - 1) << SHADERS_ ## stage ## _SHIFT))
56
57#define SHADERS_GET_PAINT_SHADER(id)           _SHADERS_GET_STAGE(PAINT, id)
58#define SHADERS_GET_IMAGE_SHADER(id)           _SHADERS_GET_STAGE(IMAGE, id)
59#define SHADERS_GET_COLOR_TRANSFORM_SHADER(id) _SHADERS_GET_STAGE(COLOR_TRANSFORM, id)
60#define SHADERS_GET_ALPHA_SHADER(id)           _SHADERS_GET_STAGE(ALPHA, id)
61#define SHADERS_GET_BLEND_SHADER(id)           _SHADERS_GET_STAGE(BLEND, id)
62#define SHADERS_GET_MASK_SHADER(id)            _SHADERS_GET_STAGE(MASK, id)
63#define SHADERS_GET_PREMULTIPLY_SHADER(id)     _SHADERS_GET_STAGE(PREMULTIPLY, id)
64#define SHADERS_GET_BW_SHADER(id)              _SHADERS_GET_STAGE(BW, id)
65
66enum VegaShaderType {
67   VEGA_SOLID_FILL_SHADER         = 1 << SHADERS_PAINT_SHIFT,
68   VEGA_LINEAR_GRADIENT_SHADER    = 2 << SHADERS_PAINT_SHIFT,
69   VEGA_RADIAL_GRADIENT_SHADER    = 3 << SHADERS_PAINT_SHIFT,
70   VEGA_PATTERN_SHADER            = 4 << SHADERS_PAINT_SHIFT,
71   VEGA_PAINT_DEGENERATE_SHADER   = 5 << SHADERS_PAINT_SHIFT,
72
73   VEGA_IMAGE_NORMAL_SHADER       = 1 << SHADERS_IMAGE_SHIFT,
74   VEGA_IMAGE_MULTIPLY_SHADER     = 2 << SHADERS_IMAGE_SHIFT,
75   VEGA_IMAGE_STENCIL_SHADER      = 3 << SHADERS_IMAGE_SHIFT,
76
77   VEGA_COLOR_TRANSFORM_SHADER    = 1 <<  SHADERS_COLOR_TRANSFORM_SHIFT,
78
79   VEGA_ALPHA_NORMAL_SHADER       = 1 <<  SHADERS_ALPHA_SHIFT,
80   VEGA_ALPHA_PER_CHANNEL_SHADER  = 2 <<  SHADERS_ALPHA_SHIFT,
81
82   VEGA_BLEND_MULTIPLY_SHADER     = 1 << SHADERS_BLEND_SHIFT,
83   VEGA_BLEND_SCREEN_SHADER       = 2 << SHADERS_BLEND_SHIFT,
84   VEGA_BLEND_DARKEN_SHADER       = 3 << SHADERS_BLEND_SHIFT,
85   VEGA_BLEND_LIGHTEN_SHADER      = 4 << SHADERS_BLEND_SHIFT,
86
87   VEGA_MASK_SHADER               = 1 << SHADERS_MASK_SHIFT,
88
89   VEGA_PREMULTIPLY_SHADER        = 1 << SHADERS_PREMULTIPLY_SHIFT,
90   VEGA_UNPREMULTIPLY_SHADER      = 2 << SHADERS_PREMULTIPLY_SHIFT,
91
92   VEGA_BW_SHADER                 = 1 << SHADERS_BW_SHIFT
93};
94
95struct vg_shader {
96   void *driver;
97   struct tgsi_token *tokens;
98   int type;/* PIPE_SHADER_VERTEX, PIPE_SHADER_FRAGMENT */
99};
100
101struct shaders_cache *shaders_cache_create(struct vg_context *pipe);
102void shaders_cache_destroy(struct shaders_cache *sc);
103void *shaders_cache_fill(struct shaders_cache *sc,
104                         int shader_key);
105
106struct vg_shader *shader_create_from_text(struct pipe_context *pipe,
107                                          const char *txt, int num_tokens,
108                                          int type);
109
110void vg_shader_destroy(struct vg_context *ctx, struct vg_shader *shader);
111
112
113
114#endif
115