forked from bartvdbraak/blender
7f4479da42
This commit contains all the work related on the AMD megakernel split work which was mainly done by Varun Sundar, George Kyriazis and Lenny Wang, plus some help from Sergey Sharybin, Martijn Berger, Thomas Dinges and likely someone else which we're forgetting to mention. Currently only AMD cards are enabled for the new split kernel, but it is possible to force split opencl kernel to be used by setting the following environment variable: CYCLES_OPENCL_SPLIT_KERNEL_TEST=1. Not all the features are supported yet, and that being said no motion blur, camera blur, SSS and volumetrics for now. Also transparent shadows are disabled on AMD device because of some compiler bug. This kernel is also only implements regular path tracing and supporting branched one will take a bit. Branched path tracing is exposed to the interface still, which is a bit misleading and will be hidden there soon. More feature will be enabled once they're ported to the split kernel and tested. Neither regular CPU nor CUDA has any difference, they're generating the same exact code, which means no regressions/improvements there. Based on the research paper: https://research.nvidia.com/sites/default/files/publications/laine2013hpg_paper.pdf Here's the documentation: https://docs.google.com/document/d/1LuXW-CV-sVJkQaEGZlMJ86jZ8FmoPfecaMdR-oiWbUY/edit Design discussion of the patch: https://developer.blender.org/T44197 Differential Revision: https://developer.blender.org/D1200
138 lines
3.7 KiB
C
138 lines
3.7 KiB
C
/*
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* Copyright 2011-2013 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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#ifndef __KERNEL_COMPAT_OPENCL_H__
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#define __KERNEL_COMPAT_OPENCL_H__
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#define __KERNEL_GPU__
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#define __KERNEL_OPENCL__
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/* no namespaces in opencl */
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#define CCL_NAMESPACE_BEGIN
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#define CCL_NAMESPACE_END
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#ifdef __CL_NOINLINE__
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#define ccl_noinline __attribute__((noinline))
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#else
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#define ccl_noinline
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#endif
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/* in opencl all functions are device functions, so leave this empty */
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#define ccl_device
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#define ccl_device_inline ccl_device
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#define ccl_device_noinline ccl_device ccl_noinline
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#define ccl_may_alias
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#define ccl_constant __constant
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#define ccl_global __global
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#define ccl_local __local
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#define ccl_private __private
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#ifdef __SPLIT_KERNEL__
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#define ccl_addr_space __global
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#else
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#define ccl_addr_space
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#endif
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/* Selective nodes compilation. */
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#ifndef __NODES_MAX_GROUP__
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# define __NODES_MAX_GROUP__ NODE_GROUP_LEVEL_MAX
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#endif
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#ifndef __NODES_FEATURES__
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# define __NODES_FEATURES__ NODE_FEATURE_ALL
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#endif
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/* no assert in opencl */
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#define kernel_assert(cond)
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/* make_type definitions with opencl style element initializers */
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#ifdef make_float2
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#undef make_float2
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#endif
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#ifdef make_float3
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#undef make_float3
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#endif
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#ifdef make_float4
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#undef make_float4
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#endif
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#ifdef make_int2
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#undef make_int2
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#endif
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#ifdef make_int3
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#undef make_int3
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#endif
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#ifdef make_int4
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#undef make_int4
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#endif
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#ifdef make_uchar4
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#undef make_uchar4
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#endif
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#define make_float2(x, y) ((float2)(x, y))
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#define make_float3(x, y, z) ((float3)(x, y, z))
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#define make_float4(x, y, z, w) ((float4)(x, y, z, w))
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#define make_int2(x, y) ((int2)(x, y))
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#define make_int3(x, y, z) ((int3)(x, y, z))
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#define make_int4(x, y, z, w) ((int4)(x, y, z, w))
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#define make_uchar4(x, y, z, w) ((uchar4)(x, y, z, w))
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/* math functions */
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#define __uint_as_float(x) as_float(x)
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#define __float_as_uint(x) as_uint(x)
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#define __int_as_float(x) as_float(x)
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#define __float_as_int(x) as_int(x)
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#define powf(x, y) pow(((float)(x)), ((float)(y)))
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#define fabsf(x) fabs(((float)(x)))
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#define copysignf(x, y) copysign(((float)(x)), ((float)(y)))
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#define asinf(x) asin(((float)(x)))
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#define acosf(x) acos(((float)(x)))
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#define atanf(x) atan(((float)(x)))
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#define floorf(x) floor(((float)(x)))
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#define ceilf(x) ceil(((float)(x)))
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#define hypotf(x, y) hypot(((float)(x)), ((float)(y)))
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#define atan2f(x, y) atan2(((float)(x)), ((float)(y)))
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#define fmaxf(x, y) fmax(((float)(x)), ((float)(y)))
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#define fminf(x, y) fmin(((float)(x)), ((float)(y)))
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#define fmodf(x, y) fmod((float)(x), (float)(y))
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#ifndef __CL_USE_NATIVE__
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#define sinf(x) native_sin(((float)(x)))
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#define cosf(x) native_cos(((float)(x)))
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#define tanf(x) native_tan(((float)(x)))
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#define expf(x) native_exp(((float)(x)))
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#define sqrtf(x) native_sqrt(((float)(x)))
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#define logf(x) native_log(((float)(x)))
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#else
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#define sinf(x) sin(((float)(x)))
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#define cosf(x) cos(((float)(x)))
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#define tanf(x) tan(((float)(x)))
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#define expf(x) exp(((float)(x)))
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#define sqrtf(x) sqrt(((float)(x)))
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#define logf(x) log(((float)(x)))
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#endif
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/* data lookup defines */
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#define kernel_data (*kg->data)
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#define kernel_tex_fetch(t, index) kg->t[index]
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/* define NULL */
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#define NULL 0
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#include "util_half.h"
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#include "util_types.h"
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#endif /* __KERNEL_COMPAT_OPENCL_H__ */
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