/**************************************************************************
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*
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* Copyright 2009 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef LP_BLD_BLEND_H
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#define LP_BLD_BLEND_H
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#include "gallivm/lp_bld.h"
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#include "gallivm/lp_bld_init.h"
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#include "pipe/p_format.h"
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struct pipe_blend_state;
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struct lp_type;
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struct lp_build_context;
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struct lp_build_mask_context;
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LLVMValueRef
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lp_build_blend(struct lp_build_context *bld,
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unsigned func,
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unsigned factor_src,
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unsigned factor_dst,
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LLVMValueRef src,
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LLVMValueRef dst,
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LLVMValueRef src_factor,
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LLVMValueRef dst_factor,
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boolean not_alpha_dependent,
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boolean optimise_only);
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LLVMValueRef
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lp_build_blend_aos(struct gallivm_state *gallivm,
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const struct pipe_blend_state *blend,
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enum pipe_format cbuf_format,
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struct lp_type type,
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unsigned rt,
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LLVMValueRef src,
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LLVMValueRef src_alpha,
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LLVMValueRef src1,
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LLVMValueRef src1_alpha,
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LLVMValueRef dst,
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LLVMValueRef mask,
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LLVMValueRef const_,
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LLVMValueRef const_alpha,
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const unsigned char swizzle[4],
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int nr_channels);
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/**
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* Apply a logic op.
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*
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* src/dst parameters are packed values. It should work regardless the inputs
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* are scalars, or a vector.
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*/
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LLVMValueRef
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lp_build_logicop(LLVMBuilderRef builder,
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unsigned logicop_func,
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LLVMValueRef src,
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LLVMValueRef dst);
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LLVMValueRef
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lp_build_blend_func(struct lp_build_context *bld,
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unsigned func,
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LLVMValueRef term1,
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LLVMValueRef term2);
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boolean
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lp_build_blend_func_reverse(unsigned rgb_func,
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unsigned alpha_func);
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boolean
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lp_build_blend_func_commutative(unsigned func);
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void
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lp_build_alpha_to_coverage(struct gallivm_state *gallivm,
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struct lp_type type,
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struct lp_build_mask_context *mask,
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LLVMValueRef alpha,
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boolean do_branch);
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#endif /* !LP_BLD_BLEND_H */
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