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Select device by type priorities

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Code has selected discrete gpu if it has seen several render devices. It does not work if no discrete gpu has attached to device.

As solution device selected by priorities list like:
 * VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU,
 * VK_PHYSICAL_DEVICE_TYPE_VIRTUAL_GPU,
 * VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU,
 * VK_PHYSICAL_DEVICE_TYPE_CPU,
 * VK_PHYSICAL_DEVICE_TYPE_OTHER.
This commit is contained in:
Denis Pauk 2022-05-09 10:56:55 +03:00
parent 6b1c62b512
commit d134f46b59
1 changed files with 20 additions and 3 deletions
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23
src/vk/vk_device.c
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@ -44,7 +44,8 @@ static qboolean deviceExtensionsSupported(const VkPhysicalDevice *physicalDevice
}
// internal helper
static void getBestPhysicalDevice(const VkPhysicalDevice *devices, int preferredIdx, int count)
static void getBestPhysicalDevice(const VkPhysicalDevice *devices, int preferredIdx,
int count, VkPhysicalDeviceType deviceType)
{
VkPhysicalDeviceProperties deviceProperties;
VkPhysicalDeviceFeatures deviceFeatures;
@ -61,7 +62,7 @@ static void getBestPhysicalDevice(const VkPhysicalDevice *devices, int preferred
// prefer discrete GPU but if it's the only one available then don't be picky
// also - if the user specifies a preferred device, select it
qboolean bestProperties = deviceProperties.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU;
qboolean bestProperties = deviceProperties.deviceType == deviceType;
if (preferredIdx == i || (bestProperties && preferredIdx < 0) || count == 1)
{
uint32_t formatCount = 0;
@ -130,7 +131,16 @@ static void getBestPhysicalDevice(const VkPhysicalDevice *devices, int preferred
// internal helper
static qboolean selectPhysicalDevice(int preferredDeviceIdx)
{
VkPhysicalDeviceType typePriorities[] = {
VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU,
VK_PHYSICAL_DEVICE_TYPE_VIRTUAL_GPU,
VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU,
VK_PHYSICAL_DEVICE_TYPE_CPU,
VK_PHYSICAL_DEVICE_TYPE_OTHER
};
uint32_t physicalDeviceCount = 0;
int i;
VK_VERIFY(vkEnumeratePhysicalDevices(vk_instance, &physicalDeviceCount, NULL));
if (physicalDeviceCount == 0)
@ -144,7 +154,14 @@ static qboolean selectPhysicalDevice(int preferredDeviceIdx)
VkPhysicalDevice *physicalDevices = (VkPhysicalDevice *)malloc(physicalDeviceCount * sizeof(VkPhysicalDevice));
VK_VERIFY(vkEnumeratePhysicalDevices(vk_instance, &physicalDeviceCount, physicalDevices));
getBestPhysicalDevice(physicalDevices, preferredDeviceIdx < physicalDeviceCount ? preferredDeviceIdx : -1, physicalDeviceCount);
for (i=0; i < sizeof(typePriorities) / sizeof(*typePriorities); i ++)
{
getBestPhysicalDevice(physicalDevices, preferredDeviceIdx < physicalDeviceCount ? preferredDeviceIdx : -1,
physicalDeviceCount, typePriorities[i]);
if (vk_device.physical != VK_NULL_HANDLE)
break;
}
free(physicalDevices);
if (vk_device.physical == VK_NULL_HANDLE)