afad355060
Unlike OpenGL and Metal, this handle is not shared, but rather Cycles has to take ownership of it. This required a fair amount of refactoring to ensure the handle is closed, ownership is properly transferred, and the handle is recreated once when the pixel buffer is modified.
87 lines
1.4 KiB
C++
87 lines
1.4 KiB
C++
/* SPDX-FileCopyrightText: 2021-2025 Blender Foundation
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*
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* SPDX-License-Identifier: Apache-2.0 */
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#include "session/display_driver.h"
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#ifdef _WIN32
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# include "util/windows.h"
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#else
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# include <unistd.h>
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#endif
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CCL_NAMESPACE_BEGIN
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GraphicsInteropBuffer::~GraphicsInteropBuffer()
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{
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clear();
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}
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void GraphicsInteropBuffer::assign(GraphicsInteropDevice::Type type, int64_t handle, size_t size)
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{
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clear();
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type_ = type;
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handle_ = handle;
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own_handle_ = true;
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size_ = size;
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}
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bool GraphicsInteropBuffer::is_empty() const
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{
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return handle_ == 0;
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}
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void GraphicsInteropBuffer::zero()
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{
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need_zero_ = true;
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}
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void GraphicsInteropBuffer::clear()
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{
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if (type_ == GraphicsInteropDevice::VULKAN && handle_ && own_handle_) {
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#ifdef _WIN32
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CloseHandle(HANDLE(handle_));
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#else
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close(handle_);
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#endif
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}
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type_ = GraphicsInteropDevice::NONE;
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handle_ = 0;
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size_ = 0;
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need_zero_ = false;
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own_handle_ = false;
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}
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GraphicsInteropDevice::Type GraphicsInteropBuffer::get_type() const
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{
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return type_;
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}
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size_t GraphicsInteropBuffer::get_size() const
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{
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return size_;
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}
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bool GraphicsInteropBuffer::has_new_handle() const
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{
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return own_handle_;
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}
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bool GraphicsInteropBuffer::take_zero()
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{
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bool need_zero = need_zero_;
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need_zero_ = false;
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return need_zero;
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}
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int64_t GraphicsInteropBuffer::take_handle()
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{
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assert(own_handle_);
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own_handle_ = false;
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return handle_;
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}
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CCL_NAMESPACE_END
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