src/gallium/drivers/llvmpipe/lp_bld_blend.h

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   3  * Copyright 2009 VMware, Inc.
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  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 #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
  42
  43 /**
  44  * Whether the blending function is commutative or not.
  45  */
  46 boolean
  47 lp_build_blend_func_commutative(unsigned func);
  48
  49
  50 /**
  51  * Whether the blending functions are the reverse of each other.
  52  */
  53 boolean
  54 lp_build_blend_func_reverse(unsigned rgb_func, unsigned alpha_func);
  55
  56
  57 LLVMValueRef
  58 lp_build_blend_func(struct lp_build_context *bld,
  59                     unsigned func,
  60                     LLVMValueRef term1,
  61                     LLVMValueRef term2);
  62
  63
  64 LLVMValueRef
  65 lp_build_blend_aos(struct gallivm_state *gallivm,
  66                    const struct pipe_blend_state *blend,
  67                    const enum pipe_format *cbuf_format,
  68                    struct lp_type type,
  69                    unsigned rt,
  70                    LLVMValueRef src,
  71                    LLVMValueRef dst,
  72                    LLVMValueRef const_,
  73                    const unsigned char swizzle[4]);
  74
  75
  76 void
  77 lp_build_blend_soa(struct gallivm_state *gallivm,
  78                    const struct pipe_blend_state *blend,
  79                    struct lp_type type,
  80                    unsigned rt,
  81                    LLVMValueRef src[4],
  82                    LLVMValueRef dst[4],
  83                    LLVMValueRef const_[4],
  84                    LLVMValueRef res[4]);
  85
  86
  87 /**
  88  * Apply a logic op.
  89  *
  90  * src/dst parameters are packed values. It should work regardless the inputs
  91  * are scalars, or a vector.
  92  */
  93 LLVMValueRef
  94 lp_build_logicop(LLVMBuilderRef builder,
  95                  unsigned logicop_func,
  96                  LLVMValueRef src,
  97                  LLVMValueRef dst);
  98
  99
 100 #endif /* !LP_BLD_BLEND_H */