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/*
* 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 __KERNEL_COMPAT_CPU_H__
#define __KERNEL_COMPAT_CPU_H__
#define __KERNEL_CPU__
/* Release kernel has too much false-positive maybe-uninitialized warnings,
* which makes it possible to miss actual warnings.
*/
#if (defined(__GNUC__) && !defined(__clang__)) && defined(NDEBUG)
# pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
# pragma GCC diagnostic ignored "-Wuninitialized"
#endif
/* Selective nodes compilation. */
#ifndef __NODES_MAX_GROUP__
# define __NODES_MAX_GROUP__ NODE_GROUP_LEVEL_MAX
#endif
#ifndef __NODES_FEATURES__
# define __NODES_FEATURES__ NODE_FEATURE_ALL
#endif
#include "util/util_math.h"
#include "util/util_simd.h"
#include "util/util_half.h"
#include "util/util_types.h"
#include "util/util_texture.h"
#define ccl_addr_space
#define ccl_local_id(d) 0
#define ccl_global_id(d) (kg->global_id[d])
#define ccl_local_size(d) 1
#define ccl_global_size(d) (kg->global_size[d])
#define ccl_group_id(d) ccl_global_id(d)
#define ccl_num_groups(d) ccl_global_size(d)
/* On x86_64, versions of glibc < 2.16 have an issue where expf is
* much slower than the double version. This was fixed in glibc 2.16.
*/
#if !defined(__KERNEL_GPU__) && defined(__x86_64__) && defined(__x86_64__) && \
defined(__GNU_LIBRARY__) && defined(__GLIBC__ ) && defined(__GLIBC_MINOR__) && \
(__GLIBC__ <= 2 && __GLIBC_MINOR__ < 16)
# define expf(x) ((float)exp((double)(x)))
#endif
CCL_NAMESPACE_BEGIN
/* Assertions inside the kernel only work for the CPU device, so we wrap it in
* a macro which is empty for other devices */
#define kernel_assert(cond) assert(cond)
/* Texture types to be compatible with CUDA textures. These are really just
* simple arrays and after inlining fetch hopefully revert to being a simple
* pointer lookup. */
template<typename T> struct texture {
ccl_always_inline const T& fetch(int index)
{
kernel_assert(index >= 0 && index < width);
return data[index];
}
#ifdef __KERNEL_AVX__
/* Reads 256 bytes but indexes in blocks of 128 bytes to maintain
* compatibility with existing indicies and data structures.
*/
ccl_always_inline avxf fetch_avxf(const int index)
{
kernel_assert(index >= 0 && (index+1) < width);
ssef *ssef_data = (ssef*)data;
ssef *ssef_node_data = &ssef_data[index];
return _mm256_loadu_ps((float *)ssef_node_data);
}
#endif
#ifdef __KERNEL_SSE2__
ccl_always_inline ssef fetch_ssef(int index)
{
kernel_assert(index >= 0 && index < width);
return ((ssef*)data)[index];
}
ccl_always_inline ssei fetch_ssei(int index)
{
kernel_assert(index >= 0 && index < width);
return ((ssei*)data)[index];
}
#endif
T *data;
int width;
};
/* Macros to handle different memory storage on different devices */
#define kernel_tex_fetch(tex, index) (kg->tex.fetch(index))
#define kernel_tex_fetch_avxf(tex, index) (kg->tex.fetch_avxf(index))
#define kernel_tex_fetch_ssef(tex, index) (kg->tex.fetch_ssef(index))
#define kernel_tex_fetch_ssei(tex, index) (kg->tex.fetch_ssei(index))
#define kernel_tex_lookup(tex, t, offset, size) (kg->tex.lookup(t, offset, size))
#define kernel_tex_array(tex) (kg->tex.data)
#define kernel_data (kg->__data)
#ifdef __KERNEL_SSE2__
typedef vector3<sseb> sse3b;
typedef vector3<ssef> sse3f;
typedef vector3<ssei> sse3i;
ccl_device_inline void print_sse3b(const char *label, sse3b& a)
{
print_sseb(label, a.x);
print_sseb(label, a.y);
print_sseb(label, a.z);
}
ccl_device_inline void print_sse3f(const char *label, sse3f& a)
{
print_ssef(label, a.x);
print_ssef(label, a.y);
print_ssef(label, a.z);
}
ccl_device_inline void print_sse3i(const char *label, sse3i& a)
{
print_ssei(label, a.x);
print_ssei(label, a.y);
print_ssei(label, a.z);
}
#endif
CCL_NAMESPACE_END
#endif /* __KERNEL_COMPAT_CPU_H__ */
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