src/gallium/state_trackers/vega/shaders_cache.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.  All Rights Reserved.
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   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the
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  10  * permit persons to whom the Software is furnished to do so, subject to
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  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.
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  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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  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