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 
31 struct vg_context;
32 struct pipe_context;
33 struct tgsi_token;
34 struct 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            4
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 
66 enum 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_SRC_SHADER          = 1 << SHADERS_BLEND_SHIFT,
83    VEGA_BLEND_SRC_OVER_SHADER     = 2 << SHADERS_BLEND_SHIFT,
84    VEGA_BLEND_DST_OVER_SHADER     = 3 << SHADERS_BLEND_SHIFT,
85    VEGA_BLEND_SRC_IN_SHADER       = 4 << SHADERS_BLEND_SHIFT,
86    VEGA_BLEND_DST_IN_SHADER       = 5 << SHADERS_BLEND_SHIFT,
87    VEGA_BLEND_MULTIPLY_SHADER     = 6 << SHADERS_BLEND_SHIFT,
88    VEGA_BLEND_SCREEN_SHADER       = 7 << SHADERS_BLEND_SHIFT,
89    VEGA_BLEND_DARKEN_SHADER       = 8 << SHADERS_BLEND_SHIFT,
90    VEGA_BLEND_LIGHTEN_SHADER      = 9 << SHADERS_BLEND_SHIFT,
91    VEGA_BLEND_ADDITIVE_SHADER     = 10<< SHADERS_BLEND_SHIFT,
92 
93    VEGA_MASK_SHADER               = 1 << SHADERS_MASK_SHIFT,
94 
95    VEGA_PREMULTIPLY_SHADER        = 1 << SHADERS_PREMULTIPLY_SHIFT,
96    VEGA_UNPREMULTIPLY_SHADER      = 2 << SHADERS_PREMULTIPLY_SHIFT,
97 
98    VEGA_BW_SHADER                 = 1 << SHADERS_BW_SHIFT
99 };
100 
101 struct vg_shader {
102    void *driver;
103    struct tgsi_token *tokens;
104    int type;/* PIPE_SHADER_VERTEX, PIPE_SHADER_FRAGMENT */
105 };
106 
107 struct shaders_cache *shaders_cache_create(struct vg_context *pipe);
108 void shaders_cache_destroy(struct shaders_cache *sc);
109 void *shaders_cache_fill(struct shaders_cache *sc,
110                          int shader_key);
111 
112 struct vg_shader *shader_create_from_text(struct pipe_context *pipe,
113                                           const char *txt, int num_tokens,
114                                           int type);
115 
116 void vg_shader_destroy(struct vg_context *ctx, struct vg_shader *shader);
117 
118 
119 
120 #endif
121