/*
 * Copyright 2011-2013 Blender Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License
 */

#ifndef __UTIL_OPTIMIZATION_H__
#define __UTIL_OPTIMIZATION_H__

#ifndef __KERNEL_GPU__

/* quiet unused define warnings */
#if defined(__KERNEL_SSE2__)  || \
	defined(__KERNEL_SSE3__)  || \
	defined(__KERNEL_SSSE3__) || \
	defined(__KERNEL_SSE41__)
	/* do nothing */
#endif

/* x86
 *
 * Compile a regular, SSE2 and SSE3 kernel. */

#if defined(i386) || defined(_M_IX86)

#ifdef WITH_KERNEL_SSE2
#define WITH_CYCLES_OPTIMIZED_KERNEL_SSE2
#endif

#ifdef WITH_KERNEL_SSE3
#define WITH_CYCLES_OPTIMIZED_KERNEL_SSE3
#endif

#endif

/* x86-64
 *
 * Compile a regular (includes SSE2), SSE3 and SSE 4.1 kernel. */

#if defined(__x86_64__) || defined(_M_X64)

/* SSE2 is always available on x86-64 CPUs, so auto enable */
#define __KERNEL_SSE2__

/* no SSE2 kernel on x86-64, part of regular kernel */
#ifdef WITH_KERNEL_SSE3
#define WITH_CYCLES_OPTIMIZED_KERNEL_SSE3
#endif

#ifdef WITH_KERNEL_SSE41
#define WITH_CYCLES_OPTIMIZED_KERNEL_SSE41
#endif

#ifdef WITH_KERNEL_AVX
#define WITH_CYCLES_OPTIMIZED_KERNEL_AVX
#endif

/* MSVC 2008, no SSE41 (broken blendv intrinsic) and no AVX support */
#if defined(_MSC_VER) && (_MSC_VER < 1700)
#undef WITH_CYCLES_OPTIMIZED_KERNEL_SSE41
#undef WITH_CYCLES_OPTIMIZED_KERNEL_AVX
#endif

#endif

/* SSE Experiment
 *
 * This is disabled code for an experiment to use SSE types globally for types
 * such as float3 and float4. Currently this gives an overall slowdown. */

#if 0
#define __KERNEL_SSE__
#ifndef __KERNEL_SSE2__
#define __KERNEL_SSE2__
#endif
#ifndef __KERNEL_SSE3__
#define __KERNEL_SSE3__
#endif
#ifndef __KERNEL_SSSE3__
#define __KERNEL_SSSE3__
#endif
#ifndef __KERNEL_SSE4__
#define __KERNEL_SSE4__
#endif
#endif

/* SSE Intrinsics includes
 *
 * We assume __KERNEL_SSEX__ flags to have been defined at this point */

/* SSE intrinsics headers */
#ifndef FREE_WINDOWS64

#ifdef __KERNEL_SSE2__
#include <xmmintrin.h> /* SSE 1 */
#include <emmintrin.h> /* SSE 2 */
#endif

#ifdef __KERNEL_SSE3__
#include <pmmintrin.h> /* SSE 3 */
#endif

#ifdef __KERNEL_SSSE3__
#include <tmmintrin.h> /* SSSE 3 */
#endif

#ifdef __KERNEL_SSE41__
#include <smmintrin.h> /* SSE 4.1 */
#endif

#else

/* MinGW64 has conflicting declarations for these SSE headers in <windows.h>.
 * Since we can't avoid including <windows.h>, better only include that */
#include <windows.h>

#endif

#endif

#endif /* __UTIL_OPTIMIZATION_H__ */