VulkanExtensions.cpp File Reference

#include "include/gpu/vk/VulkanExtensions.h"
#include "src/base/SkTSearch.h"
#include "src/base/SkTSort.h"

Go to the source code of this file.

Namespaces
namespace	skgpu

Macros
#define	GET_PROC(F, inst)    PFN_vk##F grVk##F = (PFN_vk ## F) getProc("vk" #F, inst, VK_NULL_HANDLE)

Functions
static int	skgpu::find_info (const TArray< VulkanExtensions::Info > &infos, const char ext[])

Macro Definition Documentation

GET_PROC

#define GET_PROC	(		F,
			inst
	)		PFN_vk##F grVk##F = (PFN_vk ## F) getProc("vk" #F, inst, VK_NULL_HANDLE)

Definition at line 62 of file VulkanExtensions.cpp.

                                                                    {
    // We grab all the extensions for the VkInstance and VkDevice so we can look up what spec
    // version each of the supported extensions are. We do not grab the extensions for layers
    // because we don't know what layers the client has enabled and in general we don't do anything
    // special for those extensions.
 
    if (instance == VK_NULL_HANDLE) {
        return;
    }
    GET_PROC(EnumerateInstanceExtensionProperties, VK_NULL_HANDLE);
    SkASSERT(grVkEnumerateInstanceExtensionProperties);
 
    VkResult res;
    // instance extensions
    uint32_t extensionCount = 0;
    res = grVkEnumerateInstanceExtensionProperties(nullptr, &extensionCount, nullptr);
    if (VK_SUCCESS != res) {
        return;
    }
    VkExtensionProperties* extensions = new VkExtensionProperties[extensionCount];
    res = grVkEnumerateInstanceExtensionProperties(nullptr, &extensionCount, extensions);
    if (VK_SUCCESS != res) {
        delete[] extensions;
        return;
    }
    for (uint32_t i = 0; i < extensionCount; ++i) {
        int idx = find_info(fExtensions, extensions[i].extensionName);
        if (idx >= 0) {
            fExtensions[idx].fSpecVersion = extensions[i].specVersion;
        }
    }
    delete[] extensions;
 
    if (physDevice == VK_NULL_HANDLE) {
        return;
    }
    GET_PROC(EnumerateDeviceExtensionProperties, instance);
    SkASSERT(grVkEnumerateDeviceExtensionProperties);
 
    // device extensions
    extensionCount = 0;
    res = grVkEnumerateDeviceExtensionProperties(physDevice, nullptr, &extensionCount, nullptr);
    if (VK_SUCCESS != res) {
        return;
    }
    extensions = new VkExtensionProperties[extensionCount];
    res = grVkEnumerateDeviceExtensionProperties(physDevice, nullptr, &extensionCount, extensions);
    if (VK_SUCCESS != res) {
        delete[] extensions;
        return;
    }
    for (uint32_t i = 0; i < extensionCount; ++i) {
        int idx = find_info(fExtensions, extensions[i].extensionName);
        if (idx >= 0) {
            fExtensions[idx].fSpecVersion = extensions[i].specVersion;
        }
    }
    delete[] extensions;
}
 
bool VulkanExtensions::hasExtension(const char ext[], uint32_t minVersion) const {
    int idx = find_info(fExtensions, ext);
    return  idx >= 0 && fExtensions[idx].fSpecVersion >= minVersion;
}
 
} // namespace skgpu