Home | History | Annotate | Download | only in llvmpipe 
      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