src/gallium/drivers/llvmpipe/lp_bld_blend.h

   1 /**************************************************************************
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   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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  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
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  27
  28 #ifndef LP_BLD_BLEND_H
  29 #define LP_BLD_BLEND_H
  30
  31
  32 #include "gallivm/lp_bld.h"
  33
  34 #include "pipe/p_format.h"
  35
  36
  37 struct pipe_blend_state;
  38 struct lp_type;
  39 struct lp_build_context;
  40
  41
  42 /**
  43  * Whether the blending function is commutative or not.
  44  */
  45 boolean
  46 lp_build_blend_func_commutative(unsigned func);
  47
  48
  49 /**
  50  * Whether the blending functions are the reverse of each other.
  51  */
  52 boolean
  53 lp_build_blend_func_reverse(unsigned rgb_func, unsigned alpha_func);
  54
  55
  56 LLVMValueRef
  57 lp_build_blend_func(struct lp_build_context *bld,
  58                     unsigned func,
  59                     LLVMValueRef term1,
  60                     LLVMValueRef term2);
  61
  62
  63 LLVMValueRef
  64 lp_build_blend_aos(LLVMBuilderRef builder,
  65                    const struct pipe_blend_state *blend,
  66                    struct lp_type type,
  67                    unsigned rt,
  68                    LLVMValueRef src,
  69                    LLVMValueRef dst,
  70                    LLVMValueRef const_,
  71                    unsigned alpha_swizzle);
  72
  73
  74 void
  75 lp_build_blend_soa(LLVMBuilderRef builder,
  76                    const struct pipe_blend_state *blend,
  77                    struct lp_type type,
  78                    unsigned rt,
  79                    LLVMValueRef src[4],
  80                    LLVMValueRef dst[4],
  81                    LLVMValueRef const_[4],
  82                    LLVMValueRef res[4]);
  83
  84
  85 /**
  86  * Apply a logic op.
  87  *
  88  * src/dst parameters are packed values. It should work regardless the inputs
  89  * are scalars, or a vector.
  90  */
  91 LLVMValueRef
  92 lp_build_logicop(LLVMBuilderRef builder,
  93                  unsigned logicop_func,
  94                  LLVMValueRef src,
  95                  LLVMValueRef dst);
  96
  97
  98 #endif /* !LP_BLD_BLEND_H */