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Add slang shaders for headless samples

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This commit is contained in:
Sascha Willems 2025-05-15 19:04:04 +02:00
parent a442bdd683
commit 04ab171247
4 changed files with 104 additions and 9 deletions
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22
examples/renderheadless/renderheadless.cpp
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@ -97,6 +97,8 @@ public:
VkDebugReportCallbackEXT debugReportCallback{};
std::string shaderDir = "glsl";
uint32_t getMemoryTypeIndex(uint32_t typeBits, VkMemoryPropertyFlags properties) {
VkPhysicalDeviceMemoryProperties deviceMemoryProperties;
vkGetPhysicalDeviceMemoryProperties(physicalDevice, &deviceMemoryProperties);
@ -163,11 +165,19 @@ public:
vks::android::loadVulkanLibrary();
#endif
if (commandLineParser.isSet("shaders")) {
shaderDir = commandLineParser.getValueAsString("shaders", "glsl");
}
VkApplicationInfo appInfo = {};
appInfo.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
appInfo.pApplicationName = "Vulkan headless example";
appInfo.pEngineName = "VulkanExample";
appInfo.apiVersion = VK_API_VERSION_1_0;
// Shaders generated by Slang require a certain SPIR-V environment that can't be satisfied by Vulkan 1.0, so we need to expliclity up that to at least 1.1 and enable some required extensions
if (shaderDir == "slang") {
appInfo.apiVersion = VK_API_VERSION_1_1;
}
/*
Vulkan instance creation (without surface extensions)
@ -190,7 +200,7 @@ public:
bool layersAvailable = true;
for (auto layerName : validationLayers) {
bool layerAvailable = false;
for (auto instanceLayer : instanceLayers) {
for (auto& instanceLayer : instanceLayers) {
if (strcmp(instanceLayer.layerName, layerName) == 0) {
layerAvailable = true;
break;
@ -290,8 +300,15 @@ public:
deviceCreateInfo.queueCreateInfoCount = 1;
deviceCreateInfo.pQueueCreateInfos = &queueCreateInfo;
std::vector<const char*> deviceExtensions = {};
// Shaders generated by Slang require a certain SPIR-V environment that can't be satisfied by Vulkan 1.0, so we need to expliclity up that to at least 1.1 and enable some required extensions
if (shaderDir == "slang") {
deviceExtensions.push_back(VK_KHR_SPIRV_1_4_EXTENSION_NAME);
deviceExtensions.push_back(VK_KHR_SHADER_FLOAT_CONTROLS_EXTENSION_NAME);
}
#if (defined(VK_USE_PLATFORM_MACOS_MVK) || defined(VK_USE_PLATFORM_METAL_EXT)) && defined(VK_KHR_portability_subset)
// SRS - When running on macOS with MoltenVK and VK_KHR_portability_subset is defined and supported by the device, enable the extension
// When running on macOS with MoltenVK and VK_KHR_portability_subset is defined and supported by the device, enable the extension
uint32_t deviceExtCount = 0;
vkEnumerateDeviceExtensionProperties(physicalDevice, nullptr, &deviceExtCount, nullptr);
if (deviceExtCount > 0)
@ -643,7 +660,6 @@ public:
pipelineCreateInfo.pVertexInputState = &vertexInputState;
std::string shaderDir = "glsl";
if (commandLineParser.isSet("shaders")) {
shaderDir = commandLineParser.getValueAsString("shaders", "glsl");
}