src/gallium/drivers/llvmpipe/lp_bld_blend.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   4  * All Rights Reserved.
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   7  * copy of this software and associated documentation files (the
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  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
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  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.
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  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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  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 */