120 lines
3.4 KiB
C
120 lines
3.4 KiB
C
/**************************************************************************
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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_FORMAT_H
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#define LP_BLD_FORMAT_H
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/**
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* @file
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* Pixel format helpers.
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*/
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#include <llvm-c/Core.h>
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#include "pipe/p_format.h"
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struct util_format_description;
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struct lp_type;
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/**
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* Unpack a pixel into its RGBA components.
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*
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* @param packed integer.
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*
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* @return RGBA in a 4 floats vector.
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*/
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LLVMValueRef
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lp_build_unpack_rgba_aos(LLVMBuilderRef builder,
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enum pipe_format format,
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LLVMValueRef packed);
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/**
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* Pack a pixel.
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*
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* @param rgba 4 float vector with the unpacked components.
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*/
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LLVMValueRef
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lp_build_pack_rgba_aos(LLVMBuilderRef builder,
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enum pipe_format format,
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LLVMValueRef rgba);
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/**
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* Load a pixel into its RGBA components.
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*
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* @param ptr value with the pointer to the packed pixel. Pointer type is
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* irrelevant.
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*
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* @return RGBA in a 4 floats vector.
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*/
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LLVMValueRef
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lp_build_load_rgba_aos(LLVMBuilderRef builder,
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enum pipe_format format,
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LLVMValueRef ptr);
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/**
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* Store a pixel.
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*
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* @param rgba 4 float vector with the unpacked components.
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*/
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void
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lp_build_store_rgba_aos(LLVMBuilderRef builder,
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enum pipe_format format,
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LLVMValueRef ptr,
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LLVMValueRef rgba);
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LLVMValueRef
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lp_build_gather(LLVMBuilderRef builder,
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unsigned length,
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unsigned src_width,
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unsigned dst_width,
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LLVMValueRef base_ptr,
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LLVMValueRef offsets);
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void
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lp_build_unpack_rgba_soa(LLVMBuilderRef builder,
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const struct util_format_description *format_desc,
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struct lp_type type,
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LLVMValueRef packed,
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LLVMValueRef *rgba);
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void
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lp_build_load_rgba_soa(LLVMBuilderRef builder,
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const struct util_format_description *format_desc,
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struct lp_type type,
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LLVMValueRef base_ptr,
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LLVMValueRef offsets,
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LLVMValueRef *rgba);
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#endif /* !LP_BLD_FORMAT_H */
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