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Merge pull request #49506 from akien-mga/vulkan_prefer_discrete_gpu

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Prefer discrete GPU over integrated one
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Rémi Verschelde 2021-06-11 13:34:38 +02:00 committed by GitHub
commit ba82626c2c
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1 changed files with 18 additions and 1 deletions
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19
drivers/vulkan/vulkan_context.cpp
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@ -694,8 +694,25 @@ Error VulkanContext::_create_physical_device() {
free(physical_devices);
ERR_FAIL_V(ERR_CANT_CREATE);
}
/* for now, just grab the first physical device */
// TODO: At least on Linux Laptops integrated GPUs fail with Vulkan in many instances.
// The device should really be a preference, but for now choosing a discrete GPU over the
// integrated one is better than the default.
// Default to first device
uint32_t device_index = 0;
for (uint32_t i = 0; i < gpu_count; ++i) {
VkPhysicalDeviceProperties props;
vkGetPhysicalDeviceProperties(physical_devices[i], &props);
if (props.deviceType == VkPhysicalDeviceType::VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU) {
// Prefer discrete GPU.
device_index = i;
break;
}
}
gpu = physical_devices[device_index];
free(physical_devices);