src/gallium/state_trackers/vega/shaders_cache.h

   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,
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  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
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  20  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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  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_MASK_BITS             1
  40 #define _SHADERS_BLEND_BITS            3
  41 #define _SHADERS_PREMULTIPLY_BITS      2
  42 #define _SHADERS_BW_BITS               1
  43
  44 #define SHADERS_PAINT_SHIFT           (0)
  45 #define SHADERS_IMAGE_SHIFT           (SHADERS_PAINT_SHIFT + _SHADERS_PAINT_BITS)
  46 #define SHADERS_COLOR_TRANSFORM_SHIFT (SHADERS_IMAGE_SHIFT + _SHADERS_IMAGE_BITS)
  47 #define SHADERS_MASK_SHIFT            (SHADERS_COLOR_TRANSFORM_SHIFT + _SHADERS_COLOR_TRANSFORM_BITS)
  48 #define SHADERS_BLEND_SHIFT           (SHADERS_MASK_SHIFT + _SHADERS_MASK_BITS)
  49 #define SHADERS_PREMULTIPLY_SHIFT     (SHADERS_BLEND_SHIFT + _SHADERS_BLEND_BITS)
  50 #define SHADERS_BW_SHIFT              (SHADERS_PREMULTIPLY_SHIFT + _SHADERS_PREMULTIPLY_BITS)
  51
  52 #define _SHADERS_GET_STAGE(stage, id) \
  53    ((id) & (((1 << _SHADERS_ ## stage ## _BITS) - 1) << SHADERS_ ## stage ## _SHIFT))
  54
  55 #define SHADERS_GET_PAINT_SHADER(id)           _SHADERS_GET_STAGE(PAINT, id)
  56 #define SHADERS_GET_IMAGE_SHADER(id)           _SHADERS_GET_STAGE(IMAGE, id)
  57 #define SHADERS_GET_COLOR_TRANSFORM_SHADER(id) _SHADERS_GET_STAGE(COLOR_TRANSFORM, id)
  58 #define SHADERS_GET_MASK_SHADER(id)            _SHADERS_GET_STAGE(MASK, id)
  59 #define SHADERS_GET_BLEND_SHADER(id)           _SHADERS_GET_STAGE(BLEND, id)
  60 #define SHADERS_GET_PREMULTIPLY_SHADER(id)     _SHADERS_GET_STAGE(PREMULTIPLY, id)
  61 #define SHADERS_GET_BW_SHADER(id)              _SHADERS_GET_STAGE(BW, id)
  62
  63 enum VegaShaderType {
  64    VEGA_SOLID_FILL_SHADER         = 1 << SHADERS_PAINT_SHIFT,
  65    VEGA_LINEAR_GRADIENT_SHADER    = 2 << SHADERS_PAINT_SHIFT,
  66    VEGA_RADIAL_GRADIENT_SHADER    = 3 << SHADERS_PAINT_SHIFT,
  67    VEGA_PATTERN_SHADER            = 4 << SHADERS_PAINT_SHIFT,
  68
  69    VEGA_IMAGE_NORMAL_SHADER       = 1 << SHADERS_IMAGE_SHIFT,
  70    VEGA_IMAGE_MULTIPLY_SHADER     = 2 << SHADERS_IMAGE_SHIFT,
  71    VEGA_IMAGE_STENCIL_SHADER      = 3 << SHADERS_IMAGE_SHIFT,
  72
  73    VEGA_COLOR_TRANSFORM_SHADER    = 1 <<  SHADERS_COLOR_TRANSFORM_SHIFT,
  74
  75    VEGA_MASK_SHADER               = 1 << SHADERS_MASK_SHIFT,
  76
  77    VEGA_BLEND_MULTIPLY_SHADER     = 1 << SHADERS_BLEND_SHIFT,
  78    VEGA_BLEND_SCREEN_SHADER       = 2 << SHADERS_BLEND_SHIFT,
  79    VEGA_BLEND_DARKEN_SHADER       = 3 << SHADERS_BLEND_SHIFT,
  80    VEGA_BLEND_LIGHTEN_SHADER      = 4 << SHADERS_BLEND_SHIFT,
  81
  82    VEGA_PREMULTIPLY_SHADER        = 1 << SHADERS_PREMULTIPLY_SHIFT,
  83    VEGA_UNPREMULTIPLY_SHADER      = 2 << SHADERS_PREMULTIPLY_SHIFT,
  84
  85    VEGA_BW_SHADER                 = 1 << SHADERS_BW_SHIFT
  86 };
  87
  88 struct vg_shader {
  89    void *driver;
  90    struct tgsi_token *tokens;
  91    int type;/* PIPE_SHADER_VERTEX, PIPE_SHADER_FRAGMENT */
  92 };
  93
  94 struct shaders_cache *shaders_cache_create(struct vg_context *pipe);
  95 void shaders_cache_destroy(struct shaders_cache *sc);
  96 void *shaders_cache_fill(struct shaders_cache *sc,
  97                          int shader_key);
  98
  99 struct vg_shader *shader_create_from_text(struct pipe_context *pipe,
 100                                           const char *txt, int num_tokens,
 101                                           int type);
 102
 103 void vg_shader_destroy(struct vg_context *ctx, struct vg_shader *shader);
 104
 105
 106
 107 #endif