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Vulkan-Samples/samples/extensions/open_gl_interop/open_gl_interop.h
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2025-09-04 10:54:47 +08:00

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/* Copyright (c) 2020-2024, Bradley Austin Davis
* Copyright (c) 2020-2024, Arm Limited
*
* SPDX-License-Identifier: Apache-2.0
*
* 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.
*/
#pragma once
#include "api_vulkan_sample.h"
#include "rendering/render_pipeline.h"
#include "scene_graph/components/camera.h"
#include "timer.h"
class OpenGLWindow;
#if defined(WIN32)
using Handle = HANDLE;
#else
using Handle = int;
constexpr Handle INVALID_HANDLE_VALUE = static_cast<Handle>(-1);
#endif
// Vertex layout for this example
struct VertexStructure
{
float pos[3];
float uv[2];
float normal[3];
};
class OffscreenContext;
struct GLData;
class OpenGLInterop : public ApiVulkanSample
{
public:
OpenGLInterop();
~OpenGLInterop();
virtual bool prepare(const vkb::ApplicationOptions &options) override;
void render(float delta_time) override;
void build_command_buffers() override;
void view_changed() override;
void on_update_ui_overlay(vkb::Drawer &drawer) override;
private:
void prepare_shared_resources();
void generate_quad();
void setup_descriptor_pool();
void setup_descriptor_set_layout();
void setup_descriptor_set();
void prepare_pipelines();
void prepare_uniform_buffers();
void update_uniform_buffers();
void draw();
vkb::Timer timer;
OffscreenContext *gl_context{nullptr};
GLData *gl_data{nullptr};
struct ShareHandles
{
Handle memory{INVALID_HANDLE_VALUE};
Handle gl_ready{INVALID_HANDLE_VALUE};
Handle gl_complete{INVALID_HANDLE_VALUE};
} shareHandles;
struct SharedTexture
{
VkImage image{VK_NULL_HANDLE};
VkDeviceMemory memory{VK_NULL_HANDLE};
VkDeviceSize size{0};
VkDeviceSize allocationSize{0};
VkSampler sampler{VK_NULL_HANDLE};
VkImageView view{VK_NULL_HANDLE};
} sharedTexture;
struct Semaphores
{
VkSemaphore gl_ready{VK_NULL_HANDLE};
VkSemaphore gl_complete{VK_NULL_HANDLE};
} sharedSemaphores;
std::unique_ptr<vkb::core::BufferC> vertex_buffer;
std::unique_ptr<vkb::core::BufferC> index_buffer;
uint32_t index_count;
std::unique_ptr<vkb::core::BufferC> uniform_buffer_vs;
struct UniformBufferData
{
glm::mat4 projection;
glm::mat4 model;
glm::vec4 view_pos;
} ubo_vs;
VkPipeline pipeline{VK_NULL_HANDLE};
VkPipelineLayout pipeline_layout{VK_NULL_HANDLE};
VkDescriptorSet descriptor_set{VK_NULL_HANDLE};
VkDescriptorSetLayout descriptor_set_layout{VK_NULL_HANDLE};
};
std::unique_ptr<vkb::VulkanSampleC> create_open_gl_interop();