forked from bartvdbraak/blender
866c7fb6e6
This kernel is compiled with AVX2, FMA3, and BMI compiler flags. At the moment only Intel Haswell benefits from this, but future AMD CPUs will have these instructions as well. Makes rendering on Haswell CPUs a few percent faster, only benchmarked with clang on OS X though. Part of my GSoC 2014.
88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
/*
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* Copyright 2011-2014 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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/* Optimized CPU kernel entry points. This file is compiled with AVX2
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* optimization flags and nearly all functions inlined, while kernel.cpp
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* is compiled without for other CPU's. */
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/* SSE optimization disabled for now on 32 bit, see bug #36316 */
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#if !(defined(__GNUC__) && (defined(i386) || defined(_M_IX86)))
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#define __KERNEL_SSE2__
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#define __KERNEL_SSE3__
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#define __KERNEL_SSSE3__
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#define __KERNEL_SSE41__
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#define __KERNEL_AVX__
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#define __KERNEL_AVX2__
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#endif
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#include "util_optimization.h"
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#ifdef WITH_CYCLES_OPTIMIZED_KERNEL_AVX2
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#include "kernel.h"
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#include "kernel_compat_cpu.h"
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#include "kernel_math.h"
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#include "kernel_types.h"
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#include "kernel_globals.h"
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#include "kernel_film.h"
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#include "kernel_path.h"
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#include "kernel_bake.h"
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CCL_NAMESPACE_BEGIN
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/* Path Tracing */
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void kernel_cpu_avx2_path_trace(KernelGlobals *kg, float *buffer, unsigned int *rng_state, int sample, int x, int y, int offset, int stride)
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{
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#ifdef __BRANCHED_PATH__
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if(kernel_data.integrator.branched)
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kernel_branched_path_trace(kg, buffer, rng_state, sample, x, y, offset, stride);
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else
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#endif
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kernel_path_trace(kg, buffer, rng_state, sample, x, y, offset, stride);
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}
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/* Film */
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void kernel_cpu_avx2_convert_to_byte(KernelGlobals *kg, uchar4 *rgba, float *buffer, float sample_scale, int x, int y, int offset, int stride)
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{
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kernel_film_convert_to_byte(kg, rgba, buffer, sample_scale, x, y, offset, stride);
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}
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void kernel_cpu_avx2_convert_to_half_float(KernelGlobals *kg, uchar4 *rgba, float *buffer, float sample_scale, int x, int y, int offset, int stride)
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{
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kernel_film_convert_to_half_float(kg, rgba, buffer, sample_scale, x, y, offset, stride);
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}
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/* Shader Evaluate */
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void kernel_cpu_avx2_shader(KernelGlobals *kg, uint4 *input, float4 *output, int type, int i, int sample)
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{
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if(type >= SHADER_EVAL_BAKE)
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kernel_bake_evaluate(kg, input, output, (ShaderEvalType)type, i, sample);
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else
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kernel_shader_evaluate(kg, input, output, (ShaderEvalType)type, i, sample);
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}
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CCL_NAMESPACE_END
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#else
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/* needed for some linkers in combination with scons making empty compilation unit in a library */
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void __dummy_function_cycles_avx2(void);
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void __dummy_function_cycles_avx2(void) {}
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#endif
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