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vk_initlib.cpp
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vk_initlib.cpp
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/* Copyright (c) 2014-2018, NVIDIA CORPORATION. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of NVIDIA CORPORATION nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <assert.h>
#include <string.h>
#include <vector>
#include <vulkan/vulkan_core.h>
#if HAS_OPENGL
#include <include_gl.h>
#include <nvgl/contextwindow_gl.hpp>
#endif
bool vulkanInitLibrary()
{
#if HAS_OPENGL
if (!load_GL_NV_draw_vulkan_image(nvgl::ContextWindow::sysGetProcAddress)) return false;
#endif
#if USEVULKANSDK
return true;
#else
if (__nvkglGetVkProcAddrNV){
vkLoadProcs( __nvkglGetVkProcAddrNV );
}
if (pfn_vkCreateDevice != NULL)
return true;
return false;
#endif
}
// non optimal brute force way
bool vulkanIsExtensionSupported(uint32_t deviceIdx, const char* name)
{
VkResult result;
VkInstance instance;
VkInstanceCreateInfo instanceCreateInfo = { VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO };
result = vkCreateInstance(&instanceCreateInfo, NULL, &instance);
if (result != VK_SUCCESS) {
return false;
}
uint32_t physicalDeviceCount = 0;
result = vkEnumeratePhysicalDevices(instance, &physicalDeviceCount, NULL);
if (result != VK_SUCCESS || physicalDeviceCount == 0) {
return false;
}
std::vector<VkPhysicalDevice> physicalDevices(physicalDeviceCount);
result = vkEnumeratePhysicalDevices(instance, &physicalDeviceCount, physicalDevices.data());
if (result != VK_SUCCESS) {
vkDestroyInstance(instance, NULL);
return false;
}
if (deviceIdx >= physicalDeviceCount) {
return false;
}
#ifndef NDEBUG
std::vector<VkPhysicalDeviceProperties> physicalDeviceProperties(physicalDeviceCount);
for (uint32_t i = 0; i < physicalDeviceCount; i++) {
vkGetPhysicalDeviceProperties(physicalDevices[i], &physicalDeviceProperties[i]);
}
#endif
// pick first device
VkPhysicalDevice physicalDevice = physicalDevices[deviceIdx];
uint32_t count = 0;
result = vkEnumerateDeviceExtensionProperties(physicalDevice, NULL, &count, NULL);
if (result != VK_SUCCESS) {
vkDestroyInstance(instance, NULL);
return false;
}
std::vector<VkExtensionProperties> extensions(count);
result = vkEnumerateDeviceExtensionProperties(physicalDevice, NULL, &count, extensions.data());
if (result != VK_SUCCESS) {
vkDestroyInstance(instance, NULL);
return false;
}
bool found = false;
for (uint32_t i = 0; i < count; i++){
if (strcmp(extensions[i].extensionName, name) == 0){
found = true;
break;
}
}
vkDestroyInstance(instance, NULL);
return found;
}