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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