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  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.