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/**************************************************************************
*
* Copyright 2009 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#ifndef LP_BLD_FORMAT_H
#define LP_BLD_FORMAT_H
/**
* @file
* Pixel format helpers.
*/
#include <llvm-c/Core.h>
#include "pipe/p_format.h"
struct util_format_description;
struct lp_type;
/**
* Unpack a pixel into its RGBA components.
*
* @param packed integer.
*
* @return RGBA in a 4 floats vector.
*/
LLVMValueRef
lp_build_unpack_rgba_aos(LLVMBuilderRef builder,
enum pipe_format format,
LLVMValueRef packed);
/**
* Pack a pixel.
*
* @param rgba 4 float vector with the unpacked components.
*/
LLVMValueRef
lp_build_pack_rgba_aos(LLVMBuilderRef builder,
enum pipe_format format,
LLVMValueRef rgba);
/**
* Load a pixel into its RGBA components.
*
* @param ptr value with the pointer to the packed pixel. Pointer type is
* irrelevant.
*
* @return RGBA in a 4 floats vector.
*/
LLVMValueRef
lp_build_load_rgba_aos(LLVMBuilderRef builder,
enum pipe_format format,
LLVMValueRef ptr);
/**
* Store a pixel.
*
* @param rgba 4 float vector with the unpacked components.
*/
void
lp_build_store_rgba_aos(LLVMBuilderRef builder,
enum pipe_format format,
LLVMValueRef ptr,
LLVMValueRef rgba);
LLVMValueRef
lp_build_gather(LLVMBuilderRef builder,
unsigned length,
unsigned src_width,
unsigned dst_width,
LLVMValueRef base_ptr,
LLVMValueRef offsets);
void
lp_build_unpack_rgba_soa(LLVMBuilderRef builder,
const struct util_format_description *format_desc,
struct lp_type type,
LLVMValueRef packed,
LLVMValueRef *rgba);
void
lp_build_load_rgba_soa(LLVMBuilderRef builder,
const struct util_format_description *format_desc,
struct lp_type type,
LLVMValueRef base_ptr,
LLVMValueRef offsets,
LLVMValueRef *rgba);
#endif /* !LP_BLD_FORMAT_H */
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