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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2009 VMware, Inc.
  4.  * All Rights Reserved.
  5.  *
  6.  * Permission is hereby granted, free of charge, to any person obtaining a
  7.  * copy of this software and associated documentation files (the
  8.  * "Software"), to deal in the Software without restriction, including
  9.  * without limitation the rights to use, copy, modify, merge, publish,
  10.  * distribute, sub license, and/or sell copies of the Software, and to
  11.  * permit persons to whom the Software is furnished to do so, subject to
  12.  * the following conditions:
  13.  *
  14.  * The above copyright notice and this permission notice (including the
  15.  * next paragraph) shall be included in all copies or substantial portions
  16.  * of the Software.
  17.  *
  18.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21.  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22.  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23.  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24.  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25.  *
  26.  **************************************************************************/
  27.  
  28. #ifndef LP_BLD_BLEND_H
  29. #define LP_BLD_BLEND_H
  30.  
  31.  
  32. #include "gallivm/lp_bld.h"
  33. #include "gallivm/lp_bld_init.h"
  34.  
  35. #include "pipe/p_format.h"
  36.  
  37.  
  38. struct pipe_blend_state;
  39. struct lp_type;
  40. struct lp_build_context;
  41. struct lp_build_mask_context;
  42.  
  43.  
  44. LLVMValueRef
  45. lp_build_blend(struct lp_build_context *bld,
  46.                unsigned func,
  47.                unsigned factor_src,
  48.                unsigned factor_dst,
  49.                LLVMValueRef src,
  50.                LLVMValueRef dst,
  51.                LLVMValueRef src_factor,
  52.                LLVMValueRef dst_factor,
  53.                boolean not_alpha_dependent,
  54.                boolean optimise_only);
  55.  
  56.  
  57. LLVMValueRef
  58. lp_build_blend_aos(struct gallivm_state *gallivm,
  59.                    const struct pipe_blend_state *blend,
  60.                    enum pipe_format cbuf_format,
  61.                    struct lp_type type,
  62.                    unsigned rt,
  63.                    LLVMValueRef src,
  64.                    LLVMValueRef src_alpha,
  65.                    LLVMValueRef src1,
  66.                    LLVMValueRef src1_alpha,
  67.                    LLVMValueRef dst,
  68.                    LLVMValueRef mask,
  69.                    LLVMValueRef const_,
  70.                    LLVMValueRef const_alpha,
  71.                    const unsigned char swizzle[4],
  72.                    int nr_channels);
  73.  
  74.  
  75. /**
  76.  * Apply a logic op.
  77.  *
  78.  * src/dst parameters are packed values. It should work regardless the inputs
  79.  * are scalars, or a vector.
  80.  */
  81. LLVMValueRef
  82. lp_build_logicop(LLVMBuilderRef builder,
  83.                  unsigned logicop_func,
  84.                  LLVMValueRef src,
  85.                  LLVMValueRef dst);
  86.  
  87.  
  88. LLVMValueRef
  89. lp_build_blend_func(struct lp_build_context *bld,
  90.                     unsigned func,
  91.                     LLVMValueRef term1,
  92.                     LLVMValueRef term2);
  93.  
  94.  
  95. boolean
  96. lp_build_blend_func_reverse(unsigned rgb_func,
  97.                             unsigned alpha_func);
  98.  
  99.  
  100. boolean
  101. lp_build_blend_func_commutative(unsigned func);
  102.  
  103. void
  104. lp_build_alpha_to_coverage(struct gallivm_state *gallivm,
  105.                            struct lp_type type,
  106.                            struct lp_build_mask_context *mask,
  107.                            LLVMValueRef alpha,
  108.                            boolean do_branch);
  109.  
  110. #endif /* !LP_BLD_BLEND_H */
  111.