forked from bartvdbraak/blender
Brecht Van Lommel
0fe41009f0
This was probably harmless besides some unnecessary memory usage due to aligning allocations too much.
122 lines
2.4 KiB
C++
122 lines
2.4 KiB
C++
/*
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* Copyright 2011-2017 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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#include "device/device.h"
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#include "device/device_memory.h"
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CCL_NAMESPACE_BEGIN
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/* Device Memory */
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device_memory::device_memory(Device *device, const char *name, MemoryType type)
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: data_type(device_type_traits<uchar>::data_type),
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data_elements(device_type_traits<uchar>::num_elements),
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data_size(0),
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device_size(0),
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data_width(0),
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data_height(0),
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data_depth(0),
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type(type),
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name(name),
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interpolation(INTERPOLATION_NONE),
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extension(EXTENSION_REPEAT),
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device(device),
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device_pointer(0),
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host_pointer(0),
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shared_pointer(0)
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{
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}
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device_memory::~device_memory()
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{
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}
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void *device_memory::host_alloc(size_t size)
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{
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if(!size) {
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return 0;
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}
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void *ptr = util_aligned_malloc(size, MIN_ALIGNMENT_CPU_DATA_TYPES);
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if(ptr) {
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util_guarded_mem_alloc(size);
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}
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else {
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throw std::bad_alloc();
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}
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return ptr;
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}
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void device_memory::host_free()
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{
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if(host_pointer) {
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util_guarded_mem_free(memory_size());
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util_aligned_free((void*)host_pointer);
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host_pointer = 0;
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}
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}
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void device_memory::device_alloc()
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{
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assert(!device_pointer && type != MEM_TEXTURE);
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device->mem_alloc(*this);
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}
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void device_memory::device_free()
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{
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if(device_pointer) {
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device->mem_free(*this);
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}
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}
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void device_memory::device_copy_to()
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{
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if(host_pointer) {
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device->mem_copy_to(*this);
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}
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}
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void device_memory::device_copy_from(int y, int w, int h, int elem)
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{
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assert(type != MEM_TEXTURE && type != MEM_READ_ONLY);
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device->mem_copy_from(*this, y, w, h, elem);
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}
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void device_memory::device_zero()
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{
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if(data_size) {
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device->mem_zero(*this);
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}
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}
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/* Device Sub Ptr */
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device_sub_ptr::device_sub_ptr(device_memory& mem, int offset, int size)
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: device(mem.device)
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{
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ptr = device->mem_alloc_sub_ptr(mem, offset, size);
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}
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device_sub_ptr::~device_sub_ptr()
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{
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device->mem_free_sub_ptr(ptr);
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}
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CCL_NAMESPACE_END
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