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/*
* MVKDevice.mm
*
* Copyright (c) 2014-2019 The Brenwill Workshop Ltd. (http://www.brenwill.com)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "MVKInstance.h"
#include "MVKDevice.h"
#include "MVKQueue.h"
#include "MVKSurface.h"
#include "MVKBuffer.h"
#include "MVKImage.h"
#include "MVKSwapchain.h"
#include "MVKQueryPool.h"
#include "MVKShaderModule.h"
#include "MVKPipeline.h"
#include "MVKFramebuffer.h"
#include "MVKRenderPass.h"
#include "MVKCommandPool.h"
#include "MVKFoundation.h"
#include "MVKCodec.h"
#include "MVKEnvironment.h"
#include "MVKLogging.h"
#include "MVKOSExtensions.h"
#include <MoltenVKSPIRVToMSLConverter/SPIRVToMSLConverter.h>
#include "vk_mvk_moltenvk.h"
#include <mach/mach_host.h>
#import "CAMetalLayer+MoltenVK.h"
using namespace std;
#if MVK_IOS
# include <UIKit/UIKit.h>
# define MVKViewClass UIView
#endif
#if MVK_MACOS
# include <AppKit/AppKit.h>
# define MVKViewClass NSView
#endif
#pragma mark -
#pragma mark MVKPhysicalDevice
VkResult MVKPhysicalDevice::getExtensionProperties(const char* pLayerName, uint32_t* pCount, VkExtensionProperties* pProperties) {
MVKExtensionList* extensions = getSupportedExtensions(pLayerName);
return extensions->getProperties(pCount, pProperties);
}
void MVKPhysicalDevice::getFeatures(VkPhysicalDeviceFeatures* features) {
if (features) { *features = _features; }
}
void MVKPhysicalDevice::getFeatures(VkPhysicalDeviceFeatures2* features) {
if (features) {
features->sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2;
features->features = _features;
for (auto* next = (VkBaseOutStructure*)features->pNext; next; next = next->pNext) {
switch ((uint32_t)next->sType) {
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_16BIT_STORAGE_FEATURES: {
auto* storageFeatures = (VkPhysicalDevice16BitStorageFeatures*)next;
storageFeatures->storageBuffer16BitAccess = true;
storageFeatures->uniformAndStorageBuffer16BitAccess = true;
storageFeatures->storagePushConstant16 = true;
storageFeatures->storageInputOutput16 = true;
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_8BIT_STORAGE_FEATURES_KHR: {
auto* storageFeatures = (VkPhysicalDevice8BitStorageFeaturesKHR*)next;
storageFeatures->storageBuffer8BitAccess = true;
storageFeatures->uniformAndStorageBuffer8BitAccess = true;
storageFeatures->storagePushConstant8 = true;
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FLOAT16_INT8_FEATURES_KHR: {
auto* f16Features = (VkPhysicalDeviceFloat16Int8FeaturesKHR*)next;
f16Features->shaderFloat16 = true;
f16Features->shaderInt8 = true;
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_UNIFORM_BUFFER_STANDARD_LAYOUT_FEATURES_KHR: {
auto* uboLayoutFeatures = (VkPhysicalDeviceUniformBufferStandardLayoutFeaturesKHR*)next;
uboLayoutFeatures->uniformBufferStandardLayout = true;
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VARIABLE_POINTER_FEATURES: {
auto* varPtrFeatures = (VkPhysicalDeviceVariablePointerFeatures*)next;
varPtrFeatures->variablePointersStorageBuffer = true;
varPtrFeatures->variablePointers = true;
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_HOST_QUERY_RESET_FEATURES_EXT: {
auto* hostQueryResetFeatures = (VkPhysicalDeviceHostQueryResetFeaturesEXT*)next;
hostQueryResetFeatures->hostQueryReset = true;
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_TEXEL_BUFFER_ALIGNMENT_FEATURES_EXT: {
auto* texelBuffAlignFeatures = (VkPhysicalDeviceTexelBufferAlignmentFeaturesEXT*)next;
texelBuffAlignFeatures->texelBufferAlignment = _metalFeatures.texelBuffers && [_mtlDevice respondsToSelector: @selector(minimumLinearTextureAlignmentForPixelFormat:)];
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VERTEX_ATTRIBUTE_DIVISOR_FEATURES_EXT: {
auto* divisorFeatures = (VkPhysicalDeviceVertexAttributeDivisorFeaturesEXT*)next;
divisorFeatures->vertexAttributeInstanceRateDivisor = true;
divisorFeatures->vertexAttributeInstanceRateZeroDivisor = true;
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PORTABILITY_SUBSET_FEATURES_EXTX: {
auto* portabilityFeatures = (VkPhysicalDevicePortabilitySubsetFeaturesEXTX*)next;
portabilityFeatures->triangleFans = false;
portabilityFeatures->separateStencilMaskRef = true;
portabilityFeatures->events = false;
portabilityFeatures->standardImageViews = _mvkInstance->getMoltenVKConfiguration()->fullImageViewSwizzle;
portabilityFeatures->samplerMipLodBias = false;
break;
}
default:
break;
}
}
}
}
void MVKPhysicalDevice::getProperties(VkPhysicalDeviceProperties* properties) {
if (properties) { *properties = _properties; }
}
void MVKPhysicalDevice::getProperties(VkPhysicalDeviceProperties2* properties) {
if (properties) {
properties->sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2;
properties->properties = _properties;
for (auto* next = (VkBaseOutStructure*)properties->pNext; next; next = next->pNext) {
switch ((uint32_t)next->sType) {
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_POINT_CLIPPING_PROPERTIES: {
auto* pointClipProps = (VkPhysicalDevicePointClippingProperties*)next;
pointClipProps->pointClippingBehavior = VK_POINT_CLIPPING_BEHAVIOR_ALL_CLIP_PLANES;
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MAINTENANCE_3_PROPERTIES: {
auto* maint3Props = (VkPhysicalDeviceMaintenance3Properties*)next;
maint3Props->maxPerSetDescriptors = (_metalFeatures.maxPerStageBufferCount + _metalFeatures.maxPerStageTextureCount + _metalFeatures.maxPerStageSamplerCount) * 4;
maint3Props->maxMemoryAllocationSize = _metalFeatures.maxMTLBufferSize;
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PUSH_DESCRIPTOR_PROPERTIES_KHR: {
auto* pushDescProps = (VkPhysicalDevicePushDescriptorPropertiesKHR*)next;
pushDescProps->maxPushDescriptors = _properties.limits.maxPerStageResources;
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_TEXEL_BUFFER_ALIGNMENT_PROPERTIES_EXT: {
auto* texelBuffAlignProps = (VkPhysicalDeviceTexelBufferAlignmentPropertiesEXT*)next;
// Save the 'next' pointer; we'll unintentionally overwrite it
// on the next line. Put it back when we're done.
void* savedNext = texelBuffAlignProps->pNext;
*texelBuffAlignProps = _texelBuffAlignProperties;
texelBuffAlignProps->pNext = savedNext;
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VERTEX_ATTRIBUTE_DIVISOR_PROPERTIES_EXT: {
auto* divisorProps = (VkPhysicalDeviceVertexAttributeDivisorPropertiesEXT*)next;
divisorProps->maxVertexAttribDivisor = kMVKUndefinedLargeUInt32;
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PORTABILITY_SUBSET_PROPERTIES_EXTX: {
auto* portabilityProps = (VkPhysicalDevicePortabilitySubsetPropertiesEXTX*)next;
portabilityProps->minVertexInputBindingStrideAlignment = 4;
break;
}
default:
break;
}
}
}
}
bool MVKPhysicalDevice::getFormatIsSupported(VkFormat format) {
if ( !mvkVkFormatIsSupported(format) ) { return false; }
// Special-case certain formats that not all GPU's support.
#if MVK_MACOS
switch (mvkMTLPixelFormatFromVkFormat(format)) {
case MTLPixelFormatDepth24Unorm_Stencil8:
return getMTLDevice().isDepth24Stencil8PixelFormatSupported;
break;
default:
break;
}
#endif
return true;
}
void MVKPhysicalDevice::getFormatProperties(VkFormat format, VkFormatProperties* pFormatProperties) {
if (pFormatProperties) {
*pFormatProperties = mvkVkFormatProperties(format, getFormatIsSupported(format));
}
}
void MVKPhysicalDevice::getFormatProperties(VkFormat format,
VkFormatProperties2KHR* pFormatProperties) {
if (pFormatProperties) {
pFormatProperties->sType = VK_STRUCTURE_TYPE_FORMAT_PROPERTIES_2_KHR;
pFormatProperties->formatProperties = mvkVkFormatProperties(format, getFormatIsSupported(format));
}
}
VkResult MVKPhysicalDevice::getImageFormatProperties(VkFormat format,
VkImageType type,
VkImageTiling tiling,
VkImageUsageFlags usage,
VkImageCreateFlags flags,
VkImageFormatProperties* pImageFormatProperties) {
if ( !getFormatIsSupported(format) ) { return VK_ERROR_FORMAT_NOT_SUPPORTED; }
if ( !pImageFormatProperties ) { return VK_SUCCESS; }
// Metal does not support creating uncompressed views of compressed formats.
if (mvkIsAnyFlagEnabled(flags, VK_IMAGE_CREATE_BLOCK_TEXEL_VIEW_COMPATIBLE_BIT)) {
return VK_ERROR_FORMAT_NOT_SUPPORTED;
}
MVKFormatType mvkFmt = mvkFormatTypeFromVkFormat(format);
bool hasAttachmentUsage = mvkIsAnyFlagEnabled(usage, (VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT |
VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT |
VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT |
VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT));
VkPhysicalDeviceLimits* pLimits = &_properties.limits;
VkExtent3D maxExt;
uint32_t maxLevels;
uint32_t maxLayers = hasAttachmentUsage ? pLimits->maxFramebufferLayers : pLimits->maxImageArrayLayers;
VkSampleCountFlags sampleCounts = _metalFeatures.supportedSampleCounts;
switch (type) {
case VK_IMAGE_TYPE_1D:
// Metal does not allow 1D textures to be used as attachments
if (hasAttachmentUsage) { return VK_ERROR_FORMAT_NOT_SUPPORTED; }
// Metal does not allow linear tiling on 1D textures
if (tiling == VK_IMAGE_TILING_LINEAR) { return VK_ERROR_FORMAT_NOT_SUPPORTED; }
// Metal does not allow compressed or depth/stencil formats on 1D textures
if (mvkFmt == kMVKFormatDepthStencil || mvkFmt == kMVKFormatCompressed) {
return VK_ERROR_FORMAT_NOT_SUPPORTED;
}
maxExt.width = pLimits->maxImageDimension1D;
maxExt.height = 1;
maxExt.depth = 1;
maxLevels = 1;
sampleCounts = VK_SAMPLE_COUNT_1_BIT;
break;
case VK_IMAGE_TYPE_2D:
if (mvkIsAnyFlagEnabled(flags, VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT) ) {
maxExt.width = pLimits->maxImageDimensionCube;
maxExt.height = pLimits->maxImageDimensionCube;
} else {
maxExt.width = pLimits->maxImageDimension2D;
maxExt.height = pLimits->maxImageDimension2D;
}
maxExt.depth = 1;
if (tiling == VK_IMAGE_TILING_LINEAR) {
// Linear textures have additional restrictions under Metal:
// - They may not be depth/stencil or compressed textures.
if (mvkFmt == kMVKFormatDepthStencil || mvkFmt == kMVKFormatCompressed) {
return VK_ERROR_FORMAT_NOT_SUPPORTED;
}
#if MVK_MACOS
// - On macOS, Linear textures may not be used as framebuffer attachments.
if (hasAttachmentUsage) { return VK_ERROR_FORMAT_NOT_SUPPORTED; }
#endif
// Linear textures may only have one mip level. layer & sample
maxLevels = 1;
maxLayers = 1;
sampleCounts = VK_SAMPLE_COUNT_1_BIT;
} else {
VkFormatProperties fmtProps;
getFormatProperties(format, &fmtProps);
// Compressed multisampled textures aren't supported.
// Multisampled cube textures aren't supported.
// Non-renderable multisampled textures aren't supported.
if (mvkFmt == kMVKFormatCompressed ||
mvkIsAnyFlagEnabled(flags, VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT) ||
!mvkIsAnyFlagEnabled(fmtProps.optimalTilingFeatures, VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT|VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT) ) {
sampleCounts = VK_SAMPLE_COUNT_1_BIT;
}
maxLevels = mvkMipmapLevels3D(maxExt);
}
break;
case VK_IMAGE_TYPE_3D:
// Metal does not allow linear tiling on 3D textures
if (tiling == VK_IMAGE_TILING_LINEAR) {
return VK_ERROR_FORMAT_NOT_SUPPORTED;
}
// Metal does not allow compressed or depth/stencil formats on 3D textures
if (mvkFmt == kMVKFormatDepthStencil
#if MVK_IOS
|| mvkFmt == kMVKFormatCompressed
#endif
) {
return VK_ERROR_FORMAT_NOT_SUPPORTED;
}
#if MVK_MACOS
// If this is a compressed format and there's no codec, it isn't supported.
if ((mvkFmt == kMVKFormatCompressed) && !mvkCanDecodeFormat(format)) {
return VK_ERROR_FORMAT_NOT_SUPPORTED;
}
#endif
maxExt.width = pLimits->maxImageDimension3D;
maxExt.height = pLimits->maxImageDimension3D;
maxExt.depth = pLimits->maxImageDimension3D;
maxLevels = mvkMipmapLevels3D(maxExt);
maxLayers = 1;
sampleCounts = VK_SAMPLE_COUNT_1_BIT;
break;
default:
// Metal does not allow linear tiling on anything but 2D textures
if (tiling == VK_IMAGE_TILING_LINEAR) { return VK_ERROR_FORMAT_NOT_SUPPORTED; }
// Metal does not allow compressed or depth/stencil formats on anything but 2D textures
if (mvkFmt == kMVKFormatDepthStencil || mvkFmt == kMVKFormatCompressed) {
return VK_ERROR_FORMAT_NOT_SUPPORTED;
}
maxExt = { 1, 1, 1};
maxLayers = 1;
maxLevels = 1;
sampleCounts = VK_SAMPLE_COUNT_1_BIT;
break;
}
pImageFormatProperties->maxExtent = maxExt;
pImageFormatProperties->maxMipLevels = maxLevels;
pImageFormatProperties->maxArrayLayers = maxLayers;
pImageFormatProperties->sampleCounts = sampleCounts;
pImageFormatProperties->maxResourceSize = kMVKUndefinedLargeUInt64;
return VK_SUCCESS;
}
VkResult MVKPhysicalDevice::getImageFormatProperties(const VkPhysicalDeviceImageFormatInfo2KHR *pImageFormatInfo,
VkImageFormatProperties2KHR* pImageFormatProperties) {
if ( !pImageFormatInfo || pImageFormatInfo->sType != VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGE_FORMAT_INFO_2_KHR ) {
return VK_ERROR_FORMAT_NOT_SUPPORTED;
}
if ( !getFormatIsSupported(pImageFormatInfo->format) ) { return VK_ERROR_FORMAT_NOT_SUPPORTED; }
if ( !getImageViewIsSupported(pImageFormatInfo) ) { return VK_ERROR_FORMAT_NOT_SUPPORTED; }
if (pImageFormatProperties) {
pImageFormatProperties->sType = VK_STRUCTURE_TYPE_IMAGE_FORMAT_PROPERTIES_2_KHR;
return getImageFormatProperties(pImageFormatInfo->format, pImageFormatInfo->type,
pImageFormatInfo->tiling, pImageFormatInfo->usage,
pImageFormatInfo->flags,
&pImageFormatProperties->imageFormatProperties);
}
return VK_SUCCESS;
}
// If the image format info links portability image view info, test if an image view of that configuration is supported
bool MVKPhysicalDevice::getImageViewIsSupported(const VkPhysicalDeviceImageFormatInfo2KHR *pImageFormatInfo) {
auto* next = (VkStructureType*)pImageFormatInfo->pNext;
while (next) {
switch ((int32_t)*next) {
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGE_VIEW_SUPPORT_EXTX: {
auto* portImgViewInfo = (VkPhysicalDeviceImageViewSupportEXTX*)next;
// Create an image view and test whether it could be configured
VkImageViewCreateInfo viewInfo = {
.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
.pNext = (VkStructureType*)portImgViewInfo->pNext,
.flags = portImgViewInfo->flags,
.image = VK_NULL_HANDLE,
.viewType = portImgViewInfo->viewType,
.format = portImgViewInfo->format,
.components = portImgViewInfo->components,
.subresourceRange = {
.aspectMask = portImgViewInfo->aspectMask,
.baseMipLevel = 0,
.levelCount = 1,
.baseArrayLayer = 0,
.layerCount = 1},
};
MVKImageView imgView(VK_NULL_HANDLE, &viewInfo, _mvkInstance->getMoltenVKConfiguration());
return imgView.getConfigurationResult() == VK_SUCCESS;
}
default:
next = (VkStructureType*)((VkPhysicalDeviceFeatures2*)next)->pNext;
break;
}
}
return true;
}
#pragma mark Surfaces
VkResult MVKPhysicalDevice::getSurfaceSupport(uint32_t queueFamilyIndex,
MVKSurface* surface,
VkBool32* pSupported) {
// Check whether this is a headless device
bool isHeadless = false;
#if MVK_MACOS
isHeadless = getMTLDevice().isHeadless;
#endif
// If this device is headless or the surface does not have a CAMetalLayer, it is not supported.
*pSupported = !(isHeadless || (surface->getCAMetalLayer() == nil));
return *pSupported ? VK_SUCCESS : surface->getConfigurationResult();
}
VkResult MVKPhysicalDevice::getSurfaceCapabilities(MVKSurface* surface,
VkSurfaceCapabilitiesKHR* pSurfaceCapabilities) {
// The layer underlying the surface view must be a CAMetalLayer.
CAMetalLayer* mtlLayer = surface->getCAMetalLayer();
if ( !mtlLayer ) { return surface->getConfigurationResult(); }
VkExtent2D surfExtnt = mvkVkExtent2DFromCGSize(mtlLayer.naturalDrawableSizeMVK);
pSurfaceCapabilities->minImageCount = _metalFeatures.minSwapchainImageCount;
pSurfaceCapabilities->maxImageCount = _metalFeatures.maxSwapchainImageCount;
pSurfaceCapabilities->currentExtent = surfExtnt;
pSurfaceCapabilities->minImageExtent = surfExtnt;
pSurfaceCapabilities->maxImageExtent = surfExtnt;
pSurfaceCapabilities->maxImageArrayLayers = 1;
pSurfaceCapabilities->supportedTransforms = (VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR);
pSurfaceCapabilities->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
pSurfaceCapabilities->supportedCompositeAlpha = (VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR |
VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR |
VK_COMPOSITE_ALPHA_POST_MULTIPLIED_BIT_KHR);
pSurfaceCapabilities->supportedUsageFlags = (VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT |
VK_IMAGE_USAGE_STORAGE_BIT |
VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
VK_IMAGE_USAGE_TRANSFER_DST_BIT |
VK_IMAGE_USAGE_SAMPLED_BIT);
return VK_SUCCESS;
}
VkResult MVKPhysicalDevice::getSurfaceFormats(MVKSurface* surface,
uint32_t* pCount,
VkSurfaceFormatKHR* pSurfaceFormats) {
// The layer underlying the surface view must be a CAMetalLayer.
CAMetalLayer* mtlLayer = surface->getCAMetalLayer();
if ( !mtlLayer ) { return surface->getConfigurationResult(); }
const MTLPixelFormat mtlFormats[] = {
MTLPixelFormatBGRA8Unorm,
MTLPixelFormatBGRA8Unorm_sRGB,
MTLPixelFormatRGBA16Float,
};
MVKVectorInline<VkColorSpaceKHR, 16> colorSpaces;
colorSpaces.push_back(VK_COLOR_SPACE_SRGB_NONLINEAR_KHR);
#if MVK_MACOS
if (getInstance()->_enabledExtensions.vk_EXT_swapchain_colorspace.enabled) {
// 10.11 supports some but not all of the color spaces specified by VK_EXT_swapchain_colorspace.
colorSpaces.push_back(VK_COLOR_SPACE_DISPLAY_P3_NONLINEAR_EXT);
colorSpaces.push_back(VK_COLOR_SPACE_DCI_P3_NONLINEAR_EXT);
colorSpaces.push_back(VK_COLOR_SPACE_BT709_NONLINEAR_EXT);
colorSpaces.push_back(VK_COLOR_SPACE_ADOBERGB_NONLINEAR_EXT);
colorSpaces.push_back(VK_COLOR_SPACE_PASS_THROUGH_EXT);
if (mvkOSVersion() >= 10.12) {
colorSpaces.push_back(VK_COLOR_SPACE_EXTENDED_SRGB_LINEAR_EXT);
colorSpaces.push_back(VK_COLOR_SPACE_EXTENDED_SRGB_NONLINEAR_EXT);
}
}
#endif
const uint mtlFmtsCnt = sizeof(mtlFormats) / sizeof(MTLPixelFormat);
const uint vkFmtsCnt = mtlFmtsCnt * (uint)colorSpaces.size();
// If properties aren't actually being requested yet, simply update the returned count
if ( !pSurfaceFormats ) {
*pCount = vkFmtsCnt;
return VK_SUCCESS;
}
// Determine how many results we'll return, and return that number
VkResult result = (*pCount >= vkFmtsCnt) ? VK_SUCCESS : VK_INCOMPLETE;
*pCount = min(*pCount, vkFmtsCnt);
// Now populate the supplied array
for (uint csIdx = 0, idx = 0; idx < *pCount && csIdx < colorSpaces.size(); csIdx++) {
for (uint fmtIdx = 0; idx < *pCount && fmtIdx < mtlFmtsCnt; fmtIdx++, idx++) {
pSurfaceFormats[idx].format = mvkVkFormatFromMTLPixelFormat(mtlFormats[fmtIdx]);
pSurfaceFormats[idx].colorSpace = colorSpaces[csIdx];
}
}
return result;
}
VkResult MVKPhysicalDevice::getSurfaceFormats(MVKSurface* surface,
uint32_t* pCount,
VkSurfaceFormat2KHR* pSurfaceFormats) {
VkResult rslt;
if (pSurfaceFormats) {
// Populate temp array of VkSurfaceFormatKHR then copy into array of VkSurfaceFormat2KHR.
// The value of *pCount may be reduced during call, but will always be <= size of temp array.
VkSurfaceFormatKHR surfFmts[*pCount];
rslt = getSurfaceFormats(surface, pCount, surfFmts);
for (uint32_t fmtIdx = 0; fmtIdx < *pCount; fmtIdx++) {
auto pSF = &pSurfaceFormats[fmtIdx];
pSF->sType = VK_STRUCTURE_TYPE_SURFACE_FORMAT_2_KHR;
pSF->pNext = nullptr;
pSF->surfaceFormat = surfFmts[fmtIdx];
}
} else {
rslt = getSurfaceFormats(surface, pCount, (VkSurfaceFormatKHR*)nullptr);
}
return rslt;
}
VkResult MVKPhysicalDevice::getSurfacePresentModes(MVKSurface* surface,
uint32_t* pCount,
VkPresentModeKHR* pPresentModes) {
// The layer underlying the surface view must be a CAMetalLayer.
CAMetalLayer* mtlLayer = surface->getCAMetalLayer();
if ( !mtlLayer ) { return surface->getConfigurationResult(); }
#define ADD_VK_PRESENT_MODE(VK_PM) \
do { \
if (pPresentModes && presentModesCnt < *pCount) { pPresentModes[presentModesCnt] = VK_PM; } \
presentModesCnt++; \
} while(false)
uint32_t presentModesCnt = 0;
ADD_VK_PRESENT_MODE(VK_PRESENT_MODE_FIFO_KHR);
if (_metalFeatures.presentModeImmediate) {
ADD_VK_PRESENT_MODE(VK_PRESENT_MODE_IMMEDIATE_KHR);
}
if (pPresentModes && *pCount < presentModesCnt) {
return VK_INCOMPLETE;
}
*pCount = presentModesCnt;
return VK_SUCCESS;
}
VkResult MVKPhysicalDevice::getPresentRectangles(MVKSurface* surface,
uint32_t* pRectCount,
VkRect2D* pRects) {
// The layer underlying the surface view must be a CAMetalLayer.
CAMetalLayer* mtlLayer = surface->getCAMetalLayer();
if ( !mtlLayer ) { return surface->getConfigurationResult(); }
if ( !pRects ) {
*pRectCount = 1;
return VK_SUCCESS;
}
if (*pRectCount == 0) { return VK_INCOMPLETE; }
*pRectCount = 1;
pRects[0].offset = { 0, 0 };
pRects[0].extent = mvkVkExtent2DFromCGSize(mtlLayer.naturalDrawableSizeMVK);
return VK_SUCCESS;
}
#pragma mark Queues
// Returns the queue families supported by this instance, lazily creating them if necessary.
// Metal does not distinguish functionality between queues, which would normally lead us
// to create only only one general-purpose queue family. However, Vulkan associates command
// buffers with a queue family, whereas Metal associates command buffers with a Metal queue.
// In order to allow a Metal command buffer to be prefilled before is is formally submitted to
// a Vulkan queue, we need to enforce that each Vulkan queue family can have only one Metal queue.
// In order to provide parallel queue operations, we therefore provide multiple queue families.
vector<MVKQueueFamily*>& MVKPhysicalDevice::getQueueFamilies() {
if (_queueFamilies.empty()) {
VkQueueFamilyProperties qfProps;
bool specialize = _mvkInstance->getMoltenVKConfiguration()->specializedQueueFamilies;
uint32_t qfIdx = 0;
qfProps.queueCount = 1; // Each queue family must have a single Metal queue (see above)
qfProps.timestampValidBits = 64;
qfProps.minImageTransferGranularity = { 1, 1, 1};
// General-purpose queue family
qfProps.queueFlags = (VK_QUEUE_GRAPHICS_BIT | VK_QUEUE_COMPUTE_BIT | VK_QUEUE_TRANSFER_BIT);
_queueFamilies.push_back(new MVKQueueFamily(this, qfIdx++, &qfProps));
// Dedicated graphics queue family...or another general-purpose queue family.
if (specialize) { qfProps.queueFlags = (VK_QUEUE_GRAPHICS_BIT | VK_QUEUE_TRANSFER_BIT); }
_queueFamilies.push_back(new MVKQueueFamily(this, qfIdx++, &qfProps));
// Dedicated compute queue family...or another general-purpose queue family.
if (specialize) { qfProps.queueFlags = (VK_QUEUE_COMPUTE_BIT | VK_QUEUE_TRANSFER_BIT); }
_queueFamilies.push_back(new MVKQueueFamily(this, qfIdx++, &qfProps));
// Dedicated transfer queue family...or another general-purpose queue family.
if (specialize) { qfProps.queueFlags = VK_QUEUE_TRANSFER_BIT; }
_queueFamilies.push_back(new MVKQueueFamily(this, qfIdx++, &qfProps));
}
return _queueFamilies;
}
VkResult MVKPhysicalDevice::getQueueFamilyProperties(uint32_t* pCount,
VkQueueFamilyProperties* pQueueFamilyProperties) {
vector<MVKQueueFamily*> qFams = getQueueFamilies();
uint32_t qfCnt = uint32_t(qFams.size());
// If properties aren't actually being requested yet, simply update the returned count
if ( !pQueueFamilyProperties ) {
*pCount = qfCnt;
return VK_SUCCESS;
}
// Determine how many families we'll return, and return that number
VkResult rslt = (*pCount >= qfCnt) ? VK_SUCCESS : VK_INCOMPLETE;
*pCount = min(*pCount, qfCnt);
// Now populate the queue families
if (pQueueFamilyProperties) {
for (uint32_t qfIdx = 0; qfIdx < *pCount; qfIdx++) {
qFams[qfIdx]->getProperties(&pQueueFamilyProperties[qfIdx]);
}
}
return rslt;
}
VkResult MVKPhysicalDevice::getQueueFamilyProperties(uint32_t* pCount,
VkQueueFamilyProperties2KHR* pQueueFamilyProperties) {
VkResult rslt;
if (pQueueFamilyProperties) {
// Populate temp array of VkQueueFamilyProperties then copy into array of VkQueueFamilyProperties2KHR.
// The value of *pCount may be reduced during call, but will always be <= size of temp array.
VkQueueFamilyProperties qProps[*pCount];
rslt = getQueueFamilyProperties(pCount, qProps);
for (uint32_t qpIdx = 0; qpIdx < *pCount; qpIdx++) {
auto pQP = &pQueueFamilyProperties[qpIdx];
pQP->sType = VK_STRUCTURE_TYPE_QUEUE_FAMILY_PROPERTIES_2_KHR;
pQP->pNext = nullptr;
pQP->queueFamilyProperties = qProps[qpIdx];
}
} else {
rslt = getQueueFamilyProperties(pCount, (VkQueueFamilyProperties*)nullptr);
}
return rslt;
}
#pragma mark Memory models
/** Populates the specified memory properties with the memory characteristics of this device. */
VkResult MVKPhysicalDevice::getPhysicalDeviceMemoryProperties(VkPhysicalDeviceMemoryProperties* pMemoryProperties) {
*pMemoryProperties = _memoryProperties;
return VK_SUCCESS;
}
VkResult MVKPhysicalDevice::getPhysicalDeviceMemoryProperties(VkPhysicalDeviceMemoryProperties2* pMemoryProperties) {
if (pMemoryProperties) {
pMemoryProperties->sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MEMORY_PROPERTIES_2;
pMemoryProperties->memoryProperties = _memoryProperties;
auto* next = (MVKVkAPIStructHeader*)pMemoryProperties->pNext;
while (next) {
switch ((uint32_t)next->sType) {
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MEMORY_BUDGET_PROPERTIES_EXT: {
auto* budgetProps = (VkPhysicalDeviceMemoryBudgetPropertiesEXT*)next;
memset(budgetProps->heapBudget, 0, sizeof(budgetProps->heapBudget));
memset(budgetProps->heapUsage, 0, sizeof(budgetProps->heapUsage));
budgetProps->heapBudget[0] = (VkDeviceSize)mvkRecommendedMaxWorkingSetSize(_mtlDevice);
if ( [_mtlDevice respondsToSelector: @selector(currentAllocatedSize)] ) {
budgetProps->heapUsage[0] = (VkDeviceSize)_mtlDevice.currentAllocatedSize;
}
next = (MVKVkAPIStructHeader*)budgetProps->pNext;
break;
}
default:
next = (MVKVkAPIStructHeader*)next->pNext;
break;
}
}
}
return VK_SUCCESS;
}
#pragma mark Construction
MVKPhysicalDevice::MVKPhysicalDevice(MVKInstance* mvkInstance, id<MTLDevice> mtlDevice) : _supportedExtensions(this, true) {
_mvkInstance = mvkInstance;
_mtlDevice = [mtlDevice retain];
initMetalFeatures(); // Call first.
initFeatures(); // Call second.
initProperties(); // Call third.
initMemoryProperties();
initExtensions();
logGPUInfo();
}
/** Initializes the Metal-specific physical device features of this instance. */
void MVKPhysicalDevice::initMetalFeatures() {
memset(&_metalFeatures, 0, sizeof(_metalFeatures)); // Start with everything cleared
_metalFeatures.maxPerStageBufferCount = 31;
_metalFeatures.maxMTLBufferSize = (256 * MEBI);
_metalFeatures.dynamicMTLBuffers = false;
_metalFeatures.maxPerStageSamplerCount = 16;
_metalFeatures.maxQueryBufferSize = (64 * KIBI);
_metalFeatures.ioSurfaces = MVK_SUPPORT_IOSURFACE_BOOL;
// Metal supports 2 or 3 concurrent CAMetalLayer drawables.
_metalFeatures.minSwapchainImageCount = 2;
_metalFeatures.maxSwapchainImageCount = 3;
#if MVK_IOS
_metalFeatures.mslVersionEnum = MTLLanguageVersion1_0;
_metalFeatures.maxPerStageTextureCount = 31;
_metalFeatures.mtlBufferAlignment = 64;
_metalFeatures.mtlCopyBufferAlignment = 1;
_metalFeatures.texelBuffers = true;
_metalFeatures.maxTextureDimension = (4 * KIBI);
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily1_v2] ) {
_metalFeatures.mslVersionEnum = MTLLanguageVersion1_1;
_metalFeatures.dynamicMTLBuffers = true;
_metalFeatures.maxTextureDimension = (8 * KIBI);
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily1_v3] ) {
_metalFeatures.mslVersionEnum = MTLLanguageVersion1_2;
_metalFeatures.shaderSpecialization = true;
_metalFeatures.stencilViews = true;
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily1_v4] ) {
_metalFeatures.mslVersionEnum = MTLLanguageVersion2_0;
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily1_v5] ) {
_metalFeatures.mslVersionEnum = MTLLanguageVersion2_1;
MVK_SET_FROM_ENV_OR_BUILD_BOOL(_metalFeatures.events, MVK_ALLOW_METAL_EVENTS);
_metalFeatures.textureBuffers = true;
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily3_v1] ) {
_metalFeatures.indirectDrawing = true;
_metalFeatures.baseVertexInstanceDrawing = true;
_metalFeatures.combinedStoreResolveAction = true;
_metalFeatures.mtlBufferAlignment = 16; // Min float4 alignment for typical vertex buffers. MTLBuffer may go down to 4 bytes for other data.
_metalFeatures.maxTextureDimension = (16 * KIBI);
_metalFeatures.depthSampleCompare = true;
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily3_v2] ) {
_metalFeatures.arrayOfTextures = true;
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily3_v3] ) {
_metalFeatures.arrayOfSamplers = true;
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily5_v1] ) {
_metalFeatures.layeredRendering = true;
_metalFeatures.stencilFeedback = true;
}
#endif
#if MVK_MACOS
_metalFeatures.mslVersionEnum = MTLLanguageVersion1_1;
_metalFeatures.maxPerStageTextureCount = 128;
_metalFeatures.mtlBufferAlignment = 256;
_metalFeatures.mtlCopyBufferAlignment = 4;
_metalFeatures.indirectDrawing = true;
_metalFeatures.baseVertexInstanceDrawing = true;
_metalFeatures.layeredRendering = true;
_metalFeatures.maxTextureDimension = (16 * KIBI);
_metalFeatures.depthSampleCompare = true;
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_macOS_GPUFamily1_v2] ) {
_metalFeatures.mslVersionEnum = MTLLanguageVersion1_2;
_metalFeatures.dynamicMTLBuffers = true;
_metalFeatures.shaderSpecialization = true;
_metalFeatures.stencilViews = true;
_metalFeatures.samplerClampToBorder = true;
_metalFeatures.combinedStoreResolveAction = true;
_metalFeatures.maxMTLBufferSize = (1 * GIBI);
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_macOS_GPUFamily1_v3] ) {
_metalFeatures.mslVersionEnum = MTLLanguageVersion2_0;
_metalFeatures.texelBuffers = true;
_metalFeatures.arrayOfTextures = true;
_metalFeatures.arrayOfSamplers = true;
_metalFeatures.presentModeImmediate = true;
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_macOS_GPUFamily1_v4] ) {
_metalFeatures.mslVersionEnum = MTLLanguageVersion2_1;
_metalFeatures.multisampleArrayTextures = true;
MVK_SET_FROM_ENV_OR_BUILD_BOOL(_metalFeatures.events, MVK_ALLOW_METAL_EVENTS);
_metalFeatures.memoryBarriers = true;
_metalFeatures.textureBuffers = true;
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_macOS_GPUFamily2_v1] ) {
_metalFeatures.multisampleLayeredRendering = _metalFeatures.layeredRendering;
_metalFeatures.stencilFeedback = true;
}
#endif
if ( [_mtlDevice respondsToSelector: @selector(maxBufferLength)] ) {
_metalFeatures.maxMTLBufferSize = _mtlDevice.maxBufferLength;
}
for (uint32_t sc = VK_SAMPLE_COUNT_1_BIT; sc <= VK_SAMPLE_COUNT_64_BIT; sc <<= 1) {
if ([_mtlDevice supportsTextureSampleCount: mvkSampleCountFromVkSampleCountFlagBits((VkSampleCountFlagBits)sc)]) {
_metalFeatures.supportedSampleCounts |= sc;
}
}
#define setMSLVersion(maj, min) \
_metalFeatures.mslVersion = SPIRV_CROSS_NAMESPACE::CompilerMSL::Options::make_msl_version(maj, min);
switch (_metalFeatures.mslVersionEnum) {
case MTLLanguageVersion2_1:
setMSLVersion(2, 1);
break;
case MTLLanguageVersion2_0:
setMSLVersion(2, 0);
break;
case MTLLanguageVersion1_2:
setMSLVersion(1, 2);
break;
case MTLLanguageVersion1_1:
setMSLVersion(1, 1);
break;
#if MVK_IOS
case MTLLanguageVersion1_0:
setMSLVersion(1, 0);
break;
#endif
#if MVK_MACOS
// Silence compiler warning catch-22 on MTLLanguageVersion1_0.
// But allow iOS to be explicit so it warns on future enum values
default:
setMSLVersion(1, 0);
break;
#endif
}
}
/** Initializes the physical device features of this instance. */
void MVKPhysicalDevice::initFeatures() {
memset(&_features, 0, sizeof(_features)); // Start with everything cleared
_features.robustBufferAccess = true; // XXX Required by Vulkan spec
_features.fullDrawIndexUint32 = true;
_features.independentBlend = true;
_features.sampleRateShading = true;
_features.depthBiasClamp = true;
_features.fillModeNonSolid = true;
_features.largePoints = true;
_features.alphaToOne = true;
_features.samplerAnisotropy = true;
_features.shaderImageGatherExtended = true;
_features.shaderStorageImageExtendedFormats = true;
_features.shaderStorageImageReadWithoutFormat = true;
_features.shaderStorageImageWriteWithoutFormat = true;
_features.shaderUniformBufferArrayDynamicIndexing = true;
_features.shaderStorageBufferArrayDynamicIndexing = true;
_features.shaderClipDistance = true;
_features.shaderInt16 = true;
_features.multiDrawIndirect = true;
_features.variableMultisampleRate = true;
_features.inheritedQueries = true;
_features.shaderSampledImageArrayDynamicIndexing = _metalFeatures.arrayOfTextures;
if (_metalFeatures.indirectDrawing && _metalFeatures.baseVertexInstanceDrawing) {
_features.drawIndirectFirstInstance = true;
}
#if MVK_IOS
_features.textureCompressionETC2 = true;
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily2_v1] ) {
_features.textureCompressionASTC_LDR = true;
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily3_v1] ) {
_features.occlusionQueryPrecise = true;
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily1_v4] ) {
_features.dualSrcBlend = true;
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily2_v4] ) {
_features.depthClamp = true;
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily3_v2] ) {
_features.tessellationShader = true;
_features.shaderTessellationAndGeometryPointSize = true;
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily4_v1] ) {
_features.imageCubeArray = true;
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily5_v1] ) {
_features.multiViewport = true;
}
#endif
#if MVK_MACOS
_features.textureCompressionBC = true;
_features.occlusionQueryPrecise = true;
_features.imageCubeArray = true;
_features.depthClamp = true;
_features.vertexPipelineStoresAndAtomics = true;
_features.fragmentStoresAndAtomics = true;
_features.shaderStorageImageArrayDynamicIndexing = _metalFeatures.arrayOfTextures;
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_macOS_GPUFamily1_v2] ) {
_features.tessellationShader = true;
_features.dualSrcBlend = true;
_features.shaderTessellationAndGeometryPointSize = true;
}
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_macOS_GPUFamily1_v3] ) {
_features.multiViewport = true;
}
#endif
}
#pragma mark VkPhysicalDeviceFeatures - List of features available on the device
//typedef struct VkPhysicalDeviceFeatures {
// VkBool32 robustBufferAccess; // done
// VkBool32 fullDrawIndexUint32; // done
// VkBool32 imageCubeArray; // done
// VkBool32 independentBlend; // done
// VkBool32 geometryShader;
// VkBool32 tessellationShader; // done
// VkBool32 sampleRateShading; // done
// VkBool32 dualSrcBlend; // done
// VkBool32 logicOp;
// VkBool32 multiDrawIndirect; // done
// VkBool32 drawIndirectFirstInstance; // done
// VkBool32 depthClamp; // done
// VkBool32 depthBiasClamp; // done
// VkBool32 fillModeNonSolid; // done
// VkBool32 depthBounds;
// VkBool32 wideLines;
// VkBool32 largePoints; // done
// VkBool32 alphaToOne; // done
// VkBool32 multiViewport; // done
// VkBool32 samplerAnisotropy; // done
// VkBool32 textureCompressionETC2; // done
// VkBool32 textureCompressionASTC_LDR; // done
// VkBool32 textureCompressionBC; // done
// VkBool32 occlusionQueryPrecise; // done
// VkBool32 pipelineStatisticsQuery;
// VkBool32 vertexPipelineStoresAndAtomics; // done
// VkBool32 fragmentStoresAndAtomics; // done
// VkBool32 shaderTessellationAndGeometryPointSize; // done
// VkBool32 shaderImageGatherExtended; // done
// VkBool32 shaderStorageImageExtendedFormats; // done
// VkBool32 shaderStorageImageMultisample;
// VkBool32 shaderStorageImageReadWithoutFormat; // done
// VkBool32 shaderStorageImageWriteWithoutFormat; // done
// VkBool32 shaderUniformBufferArrayDynamicIndexing; // done
// VkBool32 shaderSampledImageArrayDynamicIndexing; // done
// VkBool32 shaderStorageBufferArrayDynamicIndexing; // done
// VkBool32 shaderStorageImageArrayDynamicIndexing; // done
// VkBool32 shaderClipDistance; // done
// VkBool32 shaderCullDistance;
// VkBool32 shaderFloat64;
// VkBool32 shaderInt64;
// VkBool32 shaderInt16; // done
// VkBool32 shaderResourceResidency;
// VkBool32 shaderResourceMinLod;
// VkBool32 sparseBinding;
// VkBool32 sparseResidencyBuffer;
// VkBool32 sparseResidencyImage2D;
// VkBool32 sparseResidencyImage3D;
// VkBool32 sparseResidency2Samples;
// VkBool32 sparseResidency4Samples;
// VkBool32 sparseResidency8Samples;
// VkBool32 sparseResidency16Samples;
// VkBool32 sparseResidencyAliased;
// VkBool32 variableMultisampleRate; // done
// VkBool32 inheritedQueries; // done
//} VkPhysicalDeviceFeatures;
/** Initializes the physical device properties of this instance. */
void MVKPhysicalDevice::initProperties() {
memset(&_properties, 0, sizeof(_properties)); // Start with everything cleared
_properties.apiVersion = MVK_VULKAN_API_VERSION;
_properties.driverVersion = MVK_VERSION;
mvkPopulateGPUInfo(_properties, _mtlDevice);
initPipelineCacheUUID();
// Limits
#if MVK_IOS
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily2_v1] ) {
_properties.limits.maxColorAttachments = kMVKCachedColorAttachmentCount;
} else {
_properties.limits.maxColorAttachments = 4; // < kMVKCachedColorAttachmentCount
}
#endif
#if MVK_MACOS
_properties.limits.maxColorAttachments = kMVKCachedColorAttachmentCount;
#endif
_properties.limits.maxFragmentOutputAttachments = _properties.limits.maxColorAttachments;
_properties.limits.maxFragmentDualSrcAttachments = _features.dualSrcBlend ? 1 : 0;
_properties.limits.framebufferColorSampleCounts = _metalFeatures.supportedSampleCounts;
_properties.limits.framebufferDepthSampleCounts = _metalFeatures.supportedSampleCounts;
_properties.limits.framebufferStencilSampleCounts = _metalFeatures.supportedSampleCounts;
_properties.limits.framebufferNoAttachmentsSampleCounts = _metalFeatures.supportedSampleCounts;
_properties.limits.sampledImageColorSampleCounts = _metalFeatures.supportedSampleCounts;
_properties.limits.sampledImageIntegerSampleCounts = _metalFeatures.supportedSampleCounts;
_properties.limits.sampledImageDepthSampleCounts = _metalFeatures.supportedSampleCounts;
_properties.limits.sampledImageStencilSampleCounts = _metalFeatures.supportedSampleCounts;
_properties.limits.storageImageSampleCounts = VK_SAMPLE_COUNT_1_BIT;
_properties.limits.maxSampleMaskWords = 1;
_properties.limits.maxImageDimension1D = _metalFeatures.maxTextureDimension;
_properties.limits.maxImageDimension2D = _metalFeatures.maxTextureDimension;
_properties.limits.maxImageDimensionCube = _metalFeatures.maxTextureDimension;
_properties.limits.maxFramebufferWidth = _metalFeatures.maxTextureDimension;
_properties.limits.maxFramebufferHeight = _metalFeatures.maxTextureDimension;
_properties.limits.maxFramebufferLayers = _metalFeatures.layeredRendering ? 256 : 1;
_properties.limits.maxViewportDimensions[0] = _metalFeatures.maxTextureDimension;
_properties.limits.maxViewportDimensions[1] = _metalFeatures.maxTextureDimension;
float maxVPDim = max(_properties.limits.maxViewportDimensions[0], _properties.limits.maxViewportDimensions[1]);
_properties.limits.viewportBoundsRange[0] = (-2.0 * maxVPDim);
_properties.limits.viewportBoundsRange[1] = (2.0 * maxVPDim) - 1;
_properties.limits.maxViewports = _features.multiViewport ? kMVKCachedViewportScissorCount : 1;
_properties.limits.maxImageDimension3D = (2 * KIBI);
_properties.limits.maxImageArrayLayers = (2 * KIBI);
_properties.limits.maxSamplerAnisotropy = 16;
_properties.limits.maxVertexInputAttributes = 31;
_properties.limits.maxVertexInputBindings = 31;
_properties.limits.maxVertexInputAttributeOffset = (4 * KIBI);
_properties.limits.maxVertexInputBindingStride = _properties.limits.maxVertexInputAttributeOffset - 1;
_properties.limits.maxPerStageDescriptorSamplers = _metalFeatures.maxPerStageSamplerCount;
_properties.limits.maxPerStageDescriptorUniformBuffers = _metalFeatures.maxPerStageBufferCount;
_properties.limits.maxPerStageDescriptorStorageBuffers = _metalFeatures.maxPerStageBufferCount;
_properties.limits.maxPerStageDescriptorSampledImages = _metalFeatures.maxPerStageTextureCount;
_properties.limits.maxPerStageDescriptorStorageImages = _metalFeatures.maxPerStageTextureCount;
_properties.limits.maxPerStageDescriptorInputAttachments = _metalFeatures.maxPerStageTextureCount;
_properties.limits.maxPerStageResources = (_metalFeatures.maxPerStageBufferCount + _metalFeatures.maxPerStageTextureCount);
_properties.limits.maxFragmentCombinedOutputResources = _properties.limits.maxPerStageResources;
_properties.limits.maxDescriptorSetSamplers = (_properties.limits.maxPerStageDescriptorSamplers * 4);
_properties.limits.maxDescriptorSetUniformBuffers = (_properties.limits.maxPerStageDescriptorUniformBuffers * 4);
_properties.limits.maxDescriptorSetUniformBuffersDynamic = (_properties.limits.maxPerStageDescriptorUniformBuffers * 4);
_properties.limits.maxDescriptorSetStorageBuffers = (_properties.limits.maxPerStageDescriptorStorageBuffers * 4);
_properties.limits.maxDescriptorSetStorageBuffersDynamic = (_properties.limits.maxPerStageDescriptorStorageBuffers * 4);
_properties.limits.maxDescriptorSetSampledImages = (_properties.limits.maxPerStageDescriptorSampledImages * 4);
_properties.limits.maxDescriptorSetStorageImages = (_properties.limits.maxPerStageDescriptorStorageImages * 4);
_properties.limits.maxDescriptorSetInputAttachments = (_properties.limits.maxPerStageDescriptorInputAttachments * 4);
if (_metalFeatures.textureBuffers) {
_properties.limits.maxTexelBufferElements = (uint32_t)_metalFeatures.maxMTLBufferSize;
} else {
_properties.limits.maxTexelBufferElements = _properties.limits.maxImageDimension2D * _properties.limits.maxImageDimension2D;
}
_properties.limits.maxUniformBufferRange = (uint32_t)_metalFeatures.maxMTLBufferSize;
_properties.limits.maxStorageBufferRange = (uint32_t)_metalFeatures.maxMTLBufferSize;
_properties.limits.maxPushConstantsSize = (4 * KIBI);
_properties.limits.minMemoryMapAlignment = _metalFeatures.mtlBufferAlignment;
_properties.limits.minUniformBufferOffsetAlignment = _metalFeatures.mtlBufferAlignment;
_properties.limits.minStorageBufferOffsetAlignment = 4;
_properties.limits.bufferImageGranularity = _metalFeatures.mtlBufferAlignment;
_properties.limits.nonCoherentAtomSize = _metalFeatures.mtlBufferAlignment;
if ([_mtlDevice respondsToSelector: @selector(minimumLinearTextureAlignmentForPixelFormat:)]) {
// Figure out the greatest alignment required by all supported formats, and
// whether or not they only require alignment to a single texel. We'll use this
// information to fill out the VkPhysicalDeviceTexelBufferAlignmentPropertiesEXT
// struct.
uint32_t maxStorage = 0, maxUniform = 0;
bool singleTexelStorage = true, singleTexelUniform = true;
mvkEnumerateSupportedFormats({0, 0, VK_FORMAT_FEATURE_UNIFORM_TEXEL_BUFFER_BIT | VK_FORMAT_FEATURE_STORAGE_TEXEL_BUFFER_BIT}, true, [&](VkFormat vk) {
NSUInteger alignment;
if ([_mtlDevice respondsToSelector: @selector(minimumTextureBufferAlignmentForPixelFormat:)]) {
alignment = [_mtlDevice minimumTextureBufferAlignmentForPixelFormat: mvkMTLPixelFormatFromVkFormat(vk)];
} else {
alignment = [_mtlDevice minimumLinearTextureAlignmentForPixelFormat: mvkMTLPixelFormatFromVkFormat(vk)];
}
VkFormatProperties props = mvkVkFormatProperties(vk, getFormatIsSupported(vk));
// For uncompressed formats, this is the size of a single texel.
// Note that no implementations of Metal support compressed formats
// in a linear texture (including texture buffers). It's likely that even
// if they did, this would be the absolute minimum alignment.
uint32_t texelSize = mvkVkFormatBytesPerBlock(vk);
// From the spec:
// "If the size of a single texel is a multiple of three bytes, then
// the size of a single component of the format is used instead."
if (texelSize % 3 == 0) {
switch (mvkFormatTypeFromVkFormat(vk)) {
case kMVKFormatColorInt8:
case kMVKFormatColorUInt8:
texelSize = 1;
break;
case kMVKFormatColorHalf:
case kMVKFormatColorInt16:
case kMVKFormatColorUInt16:
texelSize = 2;
break;
case kMVKFormatColorFloat:
case kMVKFormatColorInt32:
case kMVKFormatColorUInt32:
default:
texelSize = 4;
break;
}
}
if (mvkAreAllFlagsEnabled(props.bufferFeatures, VK_FORMAT_FEATURE_UNIFORM_TEXEL_BUFFER_BIT)) {
maxStorage = max(maxStorage, uint32_t(alignment));
if (alignment % texelSize != 0) { singleTexelStorage = false; }
}
if (mvkAreAllFlagsEnabled(props.bufferFeatures, VK_FORMAT_FEATURE_STORAGE_TEXEL_BUFFER_BIT)) {
maxUniform = max(maxUniform, uint32_t(alignment));
if (alignment % texelSize != 0) { singleTexelUniform = false; }
}
return true;
});
_texelBuffAlignProperties.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_TEXEL_BUFFER_ALIGNMENT_PROPERTIES_EXT;
_texelBuffAlignProperties.storageTexelBufferOffsetAlignmentBytes = maxStorage;
_texelBuffAlignProperties.storageTexelBufferOffsetSingleTexelAlignment = singleTexelStorage;
_texelBuffAlignProperties.uniformTexelBufferOffsetAlignmentBytes = maxUniform;
_texelBuffAlignProperties.uniformTexelBufferOffsetSingleTexelAlignment = singleTexelUniform;
_properties.limits.minTexelBufferOffsetAlignment = max(maxStorage, maxUniform);
} else {
#if MVK_IOS
if ([_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily3_v1]) {
_properties.limits.minTexelBufferOffsetAlignment = 16;
} else {
_properties.limits.minTexelBufferOffsetAlignment = 64;
}
#endif
#if MVK_MACOS
_properties.limits.minTexelBufferOffsetAlignment = 256;
#endif
_texelBuffAlignProperties.storageTexelBufferOffsetAlignmentBytes = _properties.limits.minTexelBufferOffsetAlignment;
_texelBuffAlignProperties.storageTexelBufferOffsetSingleTexelAlignment = VK_FALSE;
_texelBuffAlignProperties.uniformTexelBufferOffsetAlignmentBytes = _properties.limits.minTexelBufferOffsetAlignment;
_texelBuffAlignProperties.uniformTexelBufferOffsetSingleTexelAlignment = VK_FALSE;
}
#if MVK_IOS
_properties.limits.maxFragmentInputComponents = 60;
if ([_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily3_v1]) {
_properties.limits.optimalBufferCopyOffsetAlignment = 16;
} else {
_properties.limits.optimalBufferCopyOffsetAlignment = 64;
}
if ([_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily5_v1]) {
_properties.limits.maxTessellationGenerationLevel = 64;
_properties.limits.maxTessellationPatchSize = 32;
} else if ([_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily3_v2]) {
_properties.limits.maxTessellationGenerationLevel = 16;
_properties.limits.maxTessellationPatchSize = 32;
} else {
_properties.limits.maxTessellationGenerationLevel = 0;
_properties.limits.maxTessellationPatchSize = 0;
}
#endif
#if MVK_MACOS
_properties.limits.maxFragmentInputComponents = 128;
_properties.limits.optimalBufferCopyOffsetAlignment = 256;
if ([_mtlDevice supportsFeatureSet: MTLFeatureSet_macOS_GPUFamily1_v2]) {
_properties.limits.maxTessellationGenerationLevel = 64;
_properties.limits.maxTessellationPatchSize = 32;
} else {
_properties.limits.maxTessellationGenerationLevel = 0;
_properties.limits.maxTessellationPatchSize = 0;
}
#endif
_properties.limits.maxVertexOutputComponents = _properties.limits.maxFragmentInputComponents;
if (_features.tessellationShader) {
_properties.limits.maxTessellationControlPerVertexInputComponents = _properties.limits.maxVertexOutputComponents;
_properties.limits.maxTessellationControlPerVertexOutputComponents = _properties.limits.maxTessellationControlPerVertexInputComponents;
// Reserve a few for the tessellation levels.
_properties.limits.maxTessellationControlPerPatchOutputComponents = _properties.limits.maxFragmentInputComponents - 8;
_properties.limits.maxTessellationControlTotalOutputComponents = _properties.limits.maxTessellationPatchSize * _properties.limits.maxTessellationControlPerVertexOutputComponents + _properties.limits.maxTessellationControlPerPatchOutputComponents;
_properties.limits.maxTessellationEvaluationInputComponents = _properties.limits.maxTessellationControlPerVertexInputComponents;
_properties.limits.maxTessellationEvaluationOutputComponents = _properties.limits.maxTessellationEvaluationInputComponents;
} else {
_properties.limits.maxTessellationControlPerVertexInputComponents = 0;
_properties.limits.maxTessellationControlPerVertexOutputComponents = 0;
_properties.limits.maxTessellationControlPerPatchOutputComponents = 0;
_properties.limits.maxTessellationControlTotalOutputComponents = 0;
_properties.limits.maxTessellationEvaluationInputComponents = 0;
_properties.limits.maxTessellationEvaluationOutputComponents = 0;
}
_properties.limits.optimalBufferCopyRowPitchAlignment = 1;
_properties.limits.timestampComputeAndGraphics = VK_TRUE;
_properties.limits.timestampPeriod = mvkGetTimestampPeriod();
_properties.limits.pointSizeRange[0] = 1;
_properties.limits.pointSizeRange[1] = 511;
_properties.limits.pointSizeGranularity = 1;
_properties.limits.lineWidthRange[0] = 1;
_properties.limits.lineWidthRange[1] = 1;
_properties.limits.lineWidthGranularity = 1;
_properties.limits.standardSampleLocations = VK_TRUE;
_properties.limits.strictLines = VK_FALSE;
VkExtent3D wgSize = mvkVkExtent3DFromMTLSize(_mtlDevice.maxThreadsPerThreadgroup);
_properties.limits.maxComputeWorkGroupSize[0] = wgSize.width;
_properties.limits.maxComputeWorkGroupSize[1] = wgSize.height;
_properties.limits.maxComputeWorkGroupSize[2] = wgSize.depth;
_properties.limits.maxComputeWorkGroupInvocations = max({wgSize.width, wgSize.height, wgSize.depth});
if ( [_mtlDevice respondsToSelector: @selector(maxThreadgroupMemoryLength)] ) {
_properties.limits.maxComputeSharedMemorySize = (uint32_t)_mtlDevice.maxThreadgroupMemoryLength;
} else {
#if MVK_IOS
if ([_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily4_v1]) {
_properties.limits.maxComputeSharedMemorySize = (32 * KIBI);
} else if ([_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily3_v1]) {
_properties.limits.maxComputeSharedMemorySize = (16 * KIBI);
} else {
_properties.limits.maxComputeSharedMemorySize = ((16 * KIBI) - 32);
}
#endif
#if MVK_MACOS
_properties.limits.maxComputeSharedMemorySize = (32 * KIBI);
#endif
}
_properties.limits.minTexelOffset = -8;
_properties.limits.maxTexelOffset = 7;
_properties.limits.minTexelGatherOffset = _properties.limits.minTexelOffset;
_properties.limits.maxTexelGatherOffset = _properties.limits.maxTexelOffset;
// Features with no specific limits - default to unlimited int values
_properties.limits.maxMemoryAllocationCount = kMVKUndefinedLargeUInt32;
_properties.limits.maxSamplerAllocationCount = kMVKUndefinedLargeUInt32;
_properties.limits.maxBoundDescriptorSets = kMVKUndefinedLargeUInt32;
_properties.limits.maxComputeWorkGroupCount[0] = kMVKUndefinedLargeUInt32;
_properties.limits.maxComputeWorkGroupCount[1] = kMVKUndefinedLargeUInt32;
_properties.limits.maxComputeWorkGroupCount[2] = kMVKUndefinedLargeUInt32;
_properties.limits.maxDrawIndexedIndexValue = numeric_limits<uint32_t>::max();
_properties.limits.maxDrawIndirectCount = kMVKUndefinedLargeUInt32;
_properties.limits.maxClipDistances = kMVKUndefinedLargeUInt32;
_properties.limits.maxCullDistances = 0; // unsupported
_properties.limits.maxCombinedClipAndCullDistances = _properties.limits.maxClipDistances +
_properties.limits.maxCullDistances;
// Features with unknown limits - default to Vulkan required limits
_properties.limits.subPixelPrecisionBits = 4;
_properties.limits.subTexelPrecisionBits = 4;
_properties.limits.mipmapPrecisionBits = 4;
_properties.limits.viewportSubPixelBits = 0;
_properties.limits.maxSamplerLodBias = 2;
_properties.limits.discreteQueuePriorities = 2;
_properties.limits.minInterpolationOffset = -0.5;
_properties.limits.maxInterpolationOffset = 0.5;
_properties.limits.subPixelInterpolationOffsetBits = 4;
// Unsupported features - set to zeros generally
_properties.limits.sparseAddressSpaceSize = 0;
_properties.limits.maxGeometryShaderInvocations = 0;
_properties.limits.maxGeometryInputComponents = 0;
_properties.limits.maxGeometryOutputComponents = 0;
_properties.limits.maxGeometryOutputVertices = 0;
_properties.limits.maxGeometryTotalOutputComponents = 0;
}
#pragma mark VkPhysicalDeviceLimits - List of feature limits available on the device
//typedef struct VkPhysicalDeviceLimits {
// uint32_t maxImageDimension1D; // done
// uint32_t maxImageDimension2D; // done
// uint32_t maxImageDimension3D; // done
// uint32_t maxImageDimensionCube; // done
// uint32_t maxImageArrayLayers; // done
// uint32_t maxTexelBufferElements; // done
// uint32_t maxUniformBufferRange; // done
// uint32_t maxStorageBufferRange; // done
// uint32_t maxPushConstantsSize; // done
// uint32_t maxMemoryAllocationCount; // done
// uint32_t maxSamplerAllocationCount; // done
// VkDeviceSize bufferImageGranularity; // done
// VkDeviceSize sparseAddressSpaceSize; // done
// uint32_t maxBoundDescriptorSets; // done
// uint32_t maxPerStageDescriptorSamplers; // done
// uint32_t maxPerStageDescriptorUniformBuffers; // done
// uint32_t maxPerStageDescriptorStorageBuffers; // done
// uint32_t maxPerStageDescriptorSampledImages; // done
// uint32_t maxPerStageDescriptorStorageImages; // done
// uint32_t maxPerStageDescriptorInputAttachments; // done
// uint32_t maxPerStageResources; // done
// uint32_t maxDescriptorSetSamplers; // done
// uint32_t maxDescriptorSetUniformBuffers; // done
// uint32_t maxDescriptorSetUniformBuffersDynamic; // done
// uint32_t maxDescriptorSetStorageBuffers; // done
// uint32_t maxDescriptorSetStorageBuffersDynamic; // done
// uint32_t maxDescriptorSetSampledImages; // done
// uint32_t maxDescriptorSetStorageImages; // done
// uint32_t maxDescriptorSetInputAttachments; // done
// uint32_t maxVertexInputAttributes; // done
// uint32_t maxVertexInputBindings; // done
// uint32_t maxVertexInputAttributeOffset; // done
// uint32_t maxVertexInputBindingStride; // done
// uint32_t maxVertexOutputComponents; // done
// uint32_t maxTessellationGenerationLevel; // done
// uint32_t maxTessellationPatchSize; // done
// uint32_t maxTessellationControlPerVertexInputComponents; // done
// uint32_t maxTessellationControlPerVertexOutputComponents; // done
// uint32_t maxTessellationControlPerPatchOutputComponents; // done
// uint32_t maxTessellationControlTotalOutputComponents; // done
// uint32_t maxTessellationEvaluationInputComponents; // done
// uint32_t maxTessellationEvaluationOutputComponents; // done
// uint32_t maxGeometryShaderInvocations; // done
// uint32_t maxGeometryInputComponents; // done
// uint32_t maxGeometryOutputComponents; // done
// uint32_t maxGeometryOutputVertices; // done
// uint32_t maxGeometryTotalOutputComponents; // done
// uint32_t maxFragmentInputComponents; // done
// uint32_t maxFragmentOutputAttachments; // done
// uint32_t maxFragmentDualSrcAttachments; // done
// uint32_t maxFragmentCombinedOutputResources; // done
// uint32_t maxComputeSharedMemorySize; // done
// uint32_t maxComputeWorkGroupCount[3]; // done
// uint32_t maxComputeWorkGroupInvocations; // done
// uint32_t maxComputeWorkGroupSize[3]; // done
// uint32_t subPixelPrecisionBits; // done
// uint32_t subTexelPrecisionBits; // done
// uint32_t mipmapPrecisionBits; // done
// uint32_t maxDrawIndexedIndexValue; // done
// uint32_t maxDrawIndirectCount; // done
// float maxSamplerLodBias; // done
// float maxSamplerAnisotropy; // done
// uint32_t maxViewports; // done
// uint32_t maxViewportDimensions[2]; // done
// float viewportBoundsRange[2]; // done
// uint32_t viewportSubPixelBits; // done
// size_t minMemoryMapAlignment; // done
// VkDeviceSize minTexelBufferOffsetAlignment; // done
// VkDeviceSize minUniformBufferOffsetAlignment; // done
// VkDeviceSize minStorageBufferOffsetAlignment; // done
// int32_t minTexelOffset; // done
// uint32_t maxTexelOffset; // done
// int32_t minTexelGatherOffset; // done
// uint32_t maxTexelGatherOffset; // done
// float minInterpolationOffset; // done
// float maxInterpolationOffset; // done
// uint32_t subPixelInterpolationOffsetBits; // done
// uint32_t maxFramebufferWidth; // done
// uint32_t maxFramebufferHeight; // done
// uint32_t maxFramebufferLayers; // done
// VkSampleCountFlags framebufferColorSampleCounts; // done
// VkSampleCountFlags framebufferDepthSampleCounts; // done
// VkSampleCountFlags framebufferStencilSampleCounts; // done
// VkSampleCountFlags framebufferNoAttachmentsSampleCounts; // done
// uint32_t maxColorAttachments; // done
// VkSampleCountFlags sampledImageColorSampleCounts; // done
// VkSampleCountFlags sampledImageIntegerSampleCounts; // done
// VkSampleCountFlags sampledImageDepthSampleCounts; // done
// VkSampleCountFlags sampledImageStencilSampleCounts; // done
// VkSampleCountFlags storageImageSampleCounts; // done
// uint32_t maxSampleMaskWords; // done
// VkBool32 timestampComputeAndGraphics; // done
// float timestampPeriod; // done
// uint32_t maxClipDistances; // done
// uint32_t maxCullDistances; // done
// uint32_t maxCombinedClipAndCullDistances; // done
// uint32_t discreteQueuePriorities; // done
// float pointSizeRange[2]; // done
// float lineWidthRange[2]; // done
// float pointSizeGranularity; // done
// float lineWidthGranularity; // done
// VkBool32 strictLines; // done
// VkBool32 standardSampleLocations; // done
// VkDeviceSize optimalBufferCopyOffsetAlignment; // done
// VkDeviceSize optimalBufferCopyRowPitchAlignment; // done
// VkDeviceSize nonCoherentAtomSize; // done
//} VkPhysicalDeviceLimits;
//typedef struct {
// VkBool32 residencyStandard2DBlockShape;
// VkBool32 residencyStandard2DMSBlockShape;
// VkBool32 residencyStandard3DBlockShape;
// VkBool32 residencyAlignedMipSize;
// VkBool32 residencyNonResident;
// VkBool32 residencyNonResidentStrict;
//} VkPhysicalDeviceSparseProperties;
void MVKPhysicalDevice::initPipelineCacheUUID() {
// Clear the UUID
memset(&_properties.pipelineCacheUUID, 0, sizeof(_properties.pipelineCacheUUID));
size_t uuidComponentOffset = 0;
// First 4 bytes contains MoltenVK version
uint32_t mvkVersion = MVK_VERSION;
*(uint32_t*)&_properties.pipelineCacheUUID[uuidComponentOffset] = NSSwapHostIntToBig(mvkVersion);
uuidComponentOffset += sizeof(mvkVersion);
// Next 4 bytes contains hightest Metal feature set supported by this device
uint32_t mtlFeatSet = (uint32_t)getHighestMTLFeatureSet();
*(uint32_t*)&_properties.pipelineCacheUUID[uuidComponentOffset] = NSSwapHostIntToBig(mtlFeatSet);
uuidComponentOffset += sizeof(mtlFeatSet);
// Last 8 bytes contain the first part of the SPIRV-Cross Git revision
uint64_t spvxRev = getSpirvCrossRevision();
*(uint64_t*)&_properties.pipelineCacheUUID[uuidComponentOffset] = NSSwapHostLongLongToBig(spvxRev);
uuidComponentOffset += sizeof(spvxRev);
}
MTLFeatureSet MVKPhysicalDevice::getHighestMTLFeatureSet() {
#if MVK_IOS
MTLFeatureSet maxFS = MTLFeatureSet_iOS_GPUFamily5_v1;
MTLFeatureSet minFS = MTLFeatureSet_iOS_GPUFamily1_v1;
#endif
#if MVK_MACOS
MTLFeatureSet maxFS = MTLFeatureSet_macOS_GPUFamily2_v1;
MTLFeatureSet minFS = MTLFeatureSet_macOS_GPUFamily1_v1;
#endif
for (NSUInteger fs = maxFS; fs > minFS; fs--) {
MTLFeatureSet mtlFS = (MTLFeatureSet)fs;
if ( [_mtlDevice supportsFeatureSet: mtlFS] ) {
return mtlFS;
}
}
return minFS;
}
// Retrieve the SPIRV-Cross Git revision hash from a derived header file that was created in the fetchDependencies script.
uint64_t MVKPhysicalDevice::getSpirvCrossRevision() {
#include <SPIRV-Cross/mvkSpirvCrossRevisionDerived.h>
static const string revStr(spirvCrossRevisionString, 0, 16); // We just need the first 16 chars
static const string lut("0123456789ABCDEF");
uint64_t revVal = 0;
for (char c : revStr) {
size_t cVal = lut.find(toupper(c));
if (cVal != string::npos) {
revVal <<= 4;
revVal += cVal;
}
}
return revVal;
}
/** Initializes the memory properties of this instance. */
void MVKPhysicalDevice::initMemoryProperties() {
// Metal Shared:
// - applies to both buffers and textures
// - default mode for buffers on both iOS & macOS
// - default mode for textures on iOS
// - one copy of memory visible to both CPU & GPU
// - coherent at command buffer boundaries
// Metal Private:
// - applies to both buffers and textures
// - accessed only by GPU through render, compute, or BLIT operations
// - no access by CPU
// - always use for framebuffers and renderable textures
// Metal Managed:
// - applies to both buffers and textures
// - default mode for textures on macOS
// - two copies of each buffer or texture when discrete memory available
// - convenience of shared mode, performance of private mode
// - on unified systems behaves like shared memory and has only one copy of content
// - when writing, use:
// - buffer didModifyRange:
// - texture replaceRegion:
// - when reading, use:
// - encoder synchronizeResource: followed by
// - cmdbuff waitUntilCompleted (or completion handler)
// - buffer/texture getBytes:
// Metal Memoryless:
// - applies only to textures used as transient render targets
// - only available with TBDR devices (i.e. on iOS)
// - no device memory is reserved at all
// - storage comes from tile memory
// - contents are undefined after rendering
// - use for temporary renderable textures
_memoryProperties = (VkPhysicalDeviceMemoryProperties){
.memoryHeapCount = 1,
.memoryHeaps = {
{
.flags = (VK_MEMORY_HEAP_DEVICE_LOCAL_BIT),
.size = (VkDeviceSize)mvkRecommendedMaxWorkingSetSize(_mtlDevice),
},
},
// NB this list needs to stay sorted by propertyFlags (as bit sets)
.memoryTypes = {
{
.heapIndex = 0,
.propertyFlags = MVK_VK_MEMORY_TYPE_METAL_PRIVATE, // Private storage
},
#if MVK_MACOS
{
.heapIndex = 0,
.propertyFlags = MVK_VK_MEMORY_TYPE_METAL_MANAGED, // Managed storage
},
#endif
{
.heapIndex = 0,
.propertyFlags = MVK_VK_MEMORY_TYPE_METAL_SHARED, // Shared storage
},
#if MVK_IOS
{
.heapIndex = 0,
.propertyFlags = MVK_VK_MEMORY_TYPE_METAL_MEMORYLESS, // Memoryless storage
},
#endif
},
};
#if MVK_MACOS
_memoryProperties.memoryTypeCount = 3;
_privateMemoryTypes = 0x1; // Private only
_lazilyAllocatedMemoryTypes = 0x0; // Not supported on macOS
_hostCoherentMemoryTypes = 0x4; // Shared only
_hostVisibleMemoryTypes = 0x6; // Shared & managed
_allMemoryTypes = 0x7; // Private, shared, & managed
#endif
#if MVK_IOS
_memoryProperties.memoryTypeCount = 2; // Managed storage not available on iOS
_privateMemoryTypes = 0x1; // Private only
_lazilyAllocatedMemoryTypes = 0x0; // Not supported on this version
_hostCoherentMemoryTypes = 0x2; // Shared only
_hostVisibleMemoryTypes = 0x2; // Shared only
_allMemoryTypes = 0x3; // Private & shared
if ([getMTLDevice() supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily1_v3]) {
_memoryProperties.memoryTypeCount = 3; // Memoryless storage available
_privateMemoryTypes = 0x5; // Private & memoryless
_lazilyAllocatedMemoryTypes = 0x4; // Memoryless only
_allMemoryTypes = 0x7; // Private, shared & memoryless
}
#endif
}
void MVKPhysicalDevice::initExtensions() {
if (!_metalFeatures.stencilFeedback) {
_supportedExtensions.vk_EXT_shader_stencil_export.enabled = false;
}
}
// Return all extensions supported by this physical device.
MVKExtensionList* MVKPhysicalDevice::getSupportedExtensions(const char* pLayerName) {
if (!pLayerName || strcmp(pLayerName, "MoltenVK") == 0) { return &_supportedExtensions; }
return getInstance()->getLayerManager()->getLayerNamed(pLayerName)->getSupportedExtensions();
}
void MVKPhysicalDevice::logGPUInfo() {
string devTypeStr;
switch (_properties.deviceType) {
case VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU:
devTypeStr = "Discrete";
break;
case VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU:
devTypeStr = "Integrated";
break;
case VK_PHYSICAL_DEVICE_TYPE_VIRTUAL_GPU:
devTypeStr = "Virtual";
break;
case VK_PHYSICAL_DEVICE_TYPE_CPU:
devTypeStr = "CPU Emulation";
break;
default:
devTypeStr = "Unknown";
break;
}
string logMsg = "GPU device:";
logMsg += "\n\t\tmodel: %s";
logMsg += "\n\t\ttype: %s";
logMsg += "\n\t\tvendorID: %#06x";
logMsg += "\n\t\tdeviceID: %#06x";
logMsg += "\n\t\tpipelineCacheUUID: %s";
logMsg += "\n\tsupports Metal Shading Language version %s and the following Metal Feature Sets:";
#if MVK_IOS
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily5_v1] ) { logMsg += "\n\t\tiOS GPU Family 5 v1"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily4_v2] ) { logMsg += "\n\t\tiOS GPU Family 4 v2"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily4_v1] ) { logMsg += "\n\t\tiOS GPU Family 4 v1"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily3_v4] ) { logMsg += "\n\t\tiOS GPU Family 3 v4"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily3_v3] ) { logMsg += "\n\t\tiOS GPU Family 3 v3"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily3_v2] ) { logMsg += "\n\t\tiOS GPU Family 3 v2"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily3_v1] ) { logMsg += "\n\t\tiOS GPU Family 3 v1"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily2_v5] ) { logMsg += "\n\t\tiOS GPU Family 2 v5"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily2_v4] ) { logMsg += "\n\t\tiOS GPU Family 2 v4"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily2_v3] ) { logMsg += "\n\t\tiOS GPU Family 2 v3"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily2_v2] ) { logMsg += "\n\t\tiOS GPU Family 2 v2"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily2_v1] ) { logMsg += "\n\t\tiOS GPU Family 2 v1"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily1_v5] ) { logMsg += "\n\t\tiOS GPU Family 1 v5"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily1_v4] ) { logMsg += "\n\t\tiOS GPU Family 1 v4"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily1_v3] ) { logMsg += "\n\t\tiOS GPU Family 1 v3"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily1_v2] ) { logMsg += "\n\t\tiOS GPU Family 1 v2"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_iOS_GPUFamily1_v1] ) { logMsg += "\n\t\tiOS GPU Family 1 v1"; }
#endif
#if MVK_MACOS
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_macOS_GPUFamily2_v1] ) { logMsg += "\n\t\tmacOS GPU Family 2 v1"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_macOS_GPUFamily1_v4] ) { logMsg += "\n\t\tmacOS GPU Family 1 v4"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_macOS_GPUFamily1_v3] ) { logMsg += "\n\t\tmacOS GPU Family 1 v3"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_macOS_GPUFamily1_v2] ) { logMsg += "\n\t\tmacOS GPU Family 1 v2"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_macOS_GPUFamily1_v1] ) { logMsg += "\n\t\tmacOS GPU Family 1 v1"; }
if ( [_mtlDevice supportsFeatureSet: MTLFeatureSet_macOS_ReadWriteTextureTier2] ) { logMsg += "\n\t\tmacOS Read-Write Texture Tier 2"; }
#endif
MVKLogInfo(logMsg.c_str(), _properties.deviceName, devTypeStr.c_str(), _properties.vendorID, _properties.deviceID,
[[[NSUUID alloc] initWithUUIDBytes: _properties.pipelineCacheUUID] autorelease].UUIDString.UTF8String,
SPIRVToMSLConversionOptions::printMSLVersion(_metalFeatures.mslVersion).c_str());
}
MVKPhysicalDevice::~MVKPhysicalDevice() {
mvkDestroyContainerContents(_queueFamilies);
[_mtlDevice release];
}
#pragma mark -
#pragma mark MVKDevice
// Returns core device commands and enabled extension device commands.
PFN_vkVoidFunction MVKDevice::getProcAddr(const char* pName) {
MVKEntryPoint* pMVKPA = _physicalDevice->_mvkInstance->getEntryPoint(pName);
bool isSupported = (pMVKPA && // Command exists and...
pMVKPA->isDevice && // ...is a device command and...
pMVKPA->isEnabled(_enabledExtensions)); // ...is a core or enabled extension command.
return isSupported ? pMVKPA->functionPointer : nullptr;
}
MVKQueue* MVKDevice::getQueue(uint32_t queueFamilyIndex, uint32_t queueIndex) {
return _queuesByQueueFamilyIndex[queueFamilyIndex][queueIndex];
}
VkResult MVKDevice::waitIdle() {
for (auto& queues : _queuesByQueueFamilyIndex) {
for (MVKQueue* q : queues) {
q->waitIdle();
}
}
return VK_SUCCESS;
}
void MVKDevice::getDescriptorSetLayoutSupport(const VkDescriptorSetLayoutCreateInfo* pCreateInfo,
VkDescriptorSetLayoutSupport* pSupport) {
// According to the Vulkan spec:
// "If the descriptor set layout satisfies the VkPhysicalDeviceMaintenance3Properties::maxPerSetDescriptors
// limit, this command is guaranteed to return VK_TRUE in VkDescriptorSetLayout::supported...
// "This command does not consider other limits such as maxPerStageDescriptor*..."
uint32_t descriptorCount = 0;
for (uint32_t i = 0; i < pCreateInfo->bindingCount; i++) {
descriptorCount += pCreateInfo->pBindings[i].descriptorCount;
}
pSupport->supported = (descriptorCount < ((_physicalDevice->_metalFeatures.maxPerStageBufferCount + _physicalDevice->_metalFeatures.maxPerStageTextureCount + _physicalDevice->_metalFeatures.maxPerStageSamplerCount) * 2));
}
VkResult MVKDevice::getDeviceGroupPresentCapabilities(VkDeviceGroupPresentCapabilitiesKHR* pDeviceGroupPresentCapabilities) {
memset(pDeviceGroupPresentCapabilities->presentMask, 0, sizeof(pDeviceGroupPresentCapabilities->presentMask));
pDeviceGroupPresentCapabilities->presentMask[0] = 0x1;
pDeviceGroupPresentCapabilities->modes = VK_DEVICE_GROUP_PRESENT_MODE_LOCAL_BIT_KHR;
return VK_SUCCESS;
}
VkResult MVKDevice::getDeviceGroupSurfacePresentModes(MVKSurface* surface, VkDeviceGroupPresentModeFlagsKHR* pModes) {
*pModes = VK_DEVICE_GROUP_PRESENT_MODE_LOCAL_BIT_KHR;
return VK_SUCCESS;
}
#pragma mark Object lifecycle
uint32_t MVKDevice::getVulkanMemoryTypeIndex(MTLStorageMode mtlStorageMode) {
VkMemoryPropertyFlags vkMemFlags;
switch (mtlStorageMode) {
case MTLStorageModePrivate:
vkMemFlags = MVK_VK_MEMORY_TYPE_METAL_PRIVATE;
break;
case MTLStorageModeShared:
vkMemFlags = MVK_VK_MEMORY_TYPE_METAL_SHARED;
break;
#if MVK_MACOS
case MTLStorageModeManaged:
vkMemFlags = MVK_VK_MEMORY_TYPE_METAL_MANAGED;
break;
#endif
#if MVK_IOS
case MTLStorageModeMemoryless:
vkMemFlags = MVK_VK_MEMORY_TYPE_METAL_MEMORYLESS;
break;
#endif
default:
vkMemFlags = MVK_VK_MEMORY_TYPE_METAL_SHARED;
break;
}
for (uint32_t mtIdx = 0; mtIdx < _pMemoryProperties->memoryTypeCount; mtIdx++) {
if (_pMemoryProperties->memoryTypes[mtIdx].propertyFlags == vkMemFlags) { return mtIdx; }
}
MVKAssert(false, "Could not find memory type corresponding to VkMemoryPropertyFlags %d", vkMemFlags);
return 0;
}
MVKBuffer* MVKDevice::createBuffer(const VkBufferCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
return (MVKBuffer*)addResource(new MVKBuffer(this, pCreateInfo));
}
void MVKDevice::destroyBuffer(MVKBuffer* mvkBuff,
const VkAllocationCallbacks* pAllocator) {
removeResource(mvkBuff);
mvkBuff->destroy();
}
MVKBufferView* MVKDevice::createBufferView(const VkBufferViewCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
return new MVKBufferView(this, pCreateInfo);
}
void MVKDevice::destroyBufferView(MVKBufferView* mvkBuffView,
const VkAllocationCallbacks* pAllocator) {
mvkBuffView->destroy();
}
MVKImage* MVKDevice::createImage(const VkImageCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
return (MVKImage*)addResource(new MVKImage(this, pCreateInfo));
}
void MVKDevice::destroyImage(MVKImage* mvkImg,
const VkAllocationCallbacks* pAllocator) {
removeResource(mvkImg);
mvkImg->destroy();
}
MVKImageView* MVKDevice::createImageView(const VkImageViewCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
return new MVKImageView(this, pCreateInfo);
}
void MVKDevice::destroyImageView(MVKImageView* mvkImgView,
const VkAllocationCallbacks* pAllocator) {
mvkImgView->destroy();
}
MVKSwapchain* MVKDevice::createSwapchain(const VkSwapchainCreateInfoKHR* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
return new MVKSwapchain(this, pCreateInfo);
}
void MVKDevice::destroySwapchain(MVKSwapchain* mvkSwpChn,
const VkAllocationCallbacks* pAllocator) {
mvkSwpChn->destroy();
}
MVKSwapchainImage* MVKDevice::createSwapchainImage(const VkImageCreateInfo* pCreateInfo,
MVKSwapchain* swapchain,
uint32_t swapchainIndex,
const VkAllocationCallbacks* pAllocator) {
return (MVKSwapchainImage*)addResource(new MVKSwapchainImage(this, pCreateInfo, swapchain, swapchainIndex));
}
void MVKDevice::destroySwapchainImage(MVKSwapchainImage* mvkImg,
const VkAllocationCallbacks* pAllocator) {
removeResource(mvkImg);
mvkImg->destroy();
}
MVKFence* MVKDevice::createFence(const VkFenceCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
return new MVKFence(this, pCreateInfo);
}
void MVKDevice::destroyFence(MVKFence* mvkFence,
const VkAllocationCallbacks* pAllocator) {
mvkFence->destroy();
}
MVKSemaphore* MVKDevice::createSemaphore(const VkSemaphoreCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
return new MVKSemaphore(this, pCreateInfo);
}
void MVKDevice::destroySemaphore(MVKSemaphore* mvkSem4,
const VkAllocationCallbacks* pAllocator) {
mvkSem4->destroy();
}
MVKQueryPool* MVKDevice::createQueryPool(const VkQueryPoolCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
switch (pCreateInfo->queryType) {
case VK_QUERY_TYPE_OCCLUSION:
return new MVKOcclusionQueryPool(this, pCreateInfo);
case VK_QUERY_TYPE_TIMESTAMP:
return new MVKTimestampQueryPool(this, pCreateInfo);
case VK_QUERY_TYPE_PIPELINE_STATISTICS:
return new MVKPipelineStatisticsQueryPool(this, pCreateInfo);
default:
return new MVKUnsupportedQueryPool(this, pCreateInfo);
}
}
void MVKDevice::destroyQueryPool(MVKQueryPool* mvkQP,
const VkAllocationCallbacks* pAllocator) {
mvkQP->destroy();
}
MVKShaderModule* MVKDevice::createShaderModule(const VkShaderModuleCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
return new MVKShaderModule(this, pCreateInfo);
}
void MVKDevice::destroyShaderModule(MVKShaderModule* mvkShdrMod,
const VkAllocationCallbacks* pAllocator) {
mvkShdrMod->destroy();
}
MVKPipelineCache* MVKDevice::createPipelineCache(const VkPipelineCacheCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
return new MVKPipelineCache(this, pCreateInfo);
}
void MVKDevice::destroyPipelineCache(MVKPipelineCache* mvkPLC,
const VkAllocationCallbacks* pAllocator) {
mvkPLC->destroy();
}
MVKPipelineLayout* MVKDevice::createPipelineLayout(const VkPipelineLayoutCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
return new MVKPipelineLayout(this, pCreateInfo);
}
void MVKDevice::destroyPipelineLayout(MVKPipelineLayout* mvkPLL,
const VkAllocationCallbacks* pAllocator) {
mvkPLL->destroy();
}
template<typename PipelineType, typename PipelineInfoType>
VkResult MVKDevice::createPipelines(VkPipelineCache pipelineCache,
uint32_t count,
const PipelineInfoType* pCreateInfos,
const VkAllocationCallbacks* pAllocator,
VkPipeline* pPipelines) {
VkResult rslt = VK_SUCCESS;
MVKPipelineCache* mvkPLC = (MVKPipelineCache*)pipelineCache;
for (uint32_t plIdx = 0; plIdx < count; plIdx++) {
const PipelineInfoType* pCreateInfo = &pCreateInfos[plIdx];
// See if this pipeline has a parent. This can come either directly
// via basePipelineHandle or indirectly via basePipelineIndex.
MVKPipeline* parentPL = VK_NULL_HANDLE;
if ( mvkAreAllFlagsEnabled(pCreateInfo->flags, VK_PIPELINE_CREATE_DERIVATIVE_BIT) ) {
VkPipeline vkParentPL = pCreateInfo->basePipelineHandle;
int32_t parentPLIdx = pCreateInfo->basePipelineIndex;
if ( !vkParentPL && (parentPLIdx >= 0)) { vkParentPL = pPipelines[parentPLIdx]; }
parentPL = vkParentPL ? (MVKPipeline*)vkParentPL : VK_NULL_HANDLE;
}
// Create the pipeline and if creation was successful, insert the new pipeline
// in the return array and add it to the pipeline cache (if the cache was specified).
// If creation was unsuccessful, insert NULL into the return array, change the
// result code of this function, and destroy the broken pipeline.
MVKPipeline* mvkPL = new PipelineType(this, mvkPLC, parentPL, pCreateInfo);
VkResult plRslt = mvkPL->getConfigurationResult();
if (plRslt == VK_SUCCESS) {
pPipelines[plIdx] = (VkPipeline)mvkPL;
} else {
rslt = plRslt;
pPipelines[plIdx] = VK_NULL_HANDLE;
mvkPL->destroy();
}
}
return rslt;
}
// Create concrete implementations of the two variations of the mvkCreatePipelines() function
// that we will be using. This is required since the template definition is located in this
// implementation file instead of in the header file. This is a realistic approach if the
// universe of possible template implementation variations is small and known in advance.
template VkResult MVKDevice::createPipelines<MVKGraphicsPipeline, VkGraphicsPipelineCreateInfo>(VkPipelineCache pipelineCache,
uint32_t count,
const VkGraphicsPipelineCreateInfo* pCreateInfos,
const VkAllocationCallbacks* pAllocator,
VkPipeline* pPipelines);
template VkResult MVKDevice::createPipelines<MVKComputePipeline, VkComputePipelineCreateInfo>(VkPipelineCache pipelineCache,
uint32_t count,
const VkComputePipelineCreateInfo* pCreateInfos,
const VkAllocationCallbacks* pAllocator,
VkPipeline* pPipelines);
void MVKDevice::destroyPipeline(MVKPipeline* mvkPL,
const VkAllocationCallbacks* pAllocator) {
mvkPL->destroy();
}
MVKSampler* MVKDevice::createSampler(const VkSamplerCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
return new MVKSampler(this, pCreateInfo);
}
void MVKDevice::destroySampler(MVKSampler* mvkSamp,
const VkAllocationCallbacks* pAllocator) {
mvkSamp->destroy();
}
MVKDescriptorSetLayout* MVKDevice::createDescriptorSetLayout(const VkDescriptorSetLayoutCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
return new MVKDescriptorSetLayout(this, pCreateInfo);
}
void MVKDevice::destroyDescriptorSetLayout(MVKDescriptorSetLayout* mvkDSL,
const VkAllocationCallbacks* pAllocator) {
mvkDSL->destroy();
}
MVKDescriptorPool* MVKDevice::createDescriptorPool(const VkDescriptorPoolCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
return new MVKDescriptorPool(this, pCreateInfo);
}
void MVKDevice::destroyDescriptorPool(MVKDescriptorPool* mvkDP,
const VkAllocationCallbacks* pAllocator) {
mvkDP->destroy();
}
MVKDescriptorUpdateTemplate* MVKDevice::createDescriptorUpdateTemplate(
const VkDescriptorUpdateTemplateCreateInfoKHR* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
return new MVKDescriptorUpdateTemplate(this, pCreateInfo);
}
void MVKDevice::destroyDescriptorUpdateTemplate(MVKDescriptorUpdateTemplate* mvkDUT,
const VkAllocationCallbacks* pAllocator) {
mvkDUT->destroy();
}
MVKFramebuffer* MVKDevice::createFramebuffer(const VkFramebufferCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
return new MVKFramebuffer(this, pCreateInfo);
}
void MVKDevice::destroyFramebuffer(MVKFramebuffer* mvkFB,
const VkAllocationCallbacks* pAllocator) {
mvkFB->destroy();
}
MVKRenderPass* MVKDevice::createRenderPass(const VkRenderPassCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
return new MVKRenderPass(this, pCreateInfo);
}
void MVKDevice::destroyRenderPass(MVKRenderPass* mvkRP,
const VkAllocationCallbacks* pAllocator) {
mvkRP->destroy();
}
MVKCommandPool* MVKDevice::createCommandPool(const VkCommandPoolCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator) {
return new MVKCommandPool(this, pCreateInfo);
}
void MVKDevice::destroyCommandPool(MVKCommandPool* mvkCmdPool,
const VkAllocationCallbacks* pAllocator) {
mvkCmdPool->destroy();
}
MVKDeviceMemory* MVKDevice::allocateMemory(const VkMemoryAllocateInfo* pAllocateInfo,
const VkAllocationCallbacks* pAllocator) {
return new MVKDeviceMemory(this, pAllocateInfo, pAllocator);
}
void MVKDevice::freeMemory(MVKDeviceMemory* mvkDevMem,
const VkAllocationCallbacks* pAllocator) {
mvkDevMem->destroy();
}
/** Adds the specified resource for tracking, and returns the added resource. */
MVKResource* MVKDevice::addResource(MVKResource* rez) {
lock_guard<mutex> lock(_rezLock);
_resources.push_back(rez);
return rez;
}
/** Removes the specified resource for tracking and returns the removed resource. */
MVKResource* MVKDevice::removeResource(MVKResource* rez) {
lock_guard<mutex> lock(_rezLock);
mvkRemoveFirstOccurance(_resources, rez);
return rez;
}
void MVKDevice::applyMemoryBarrier(VkPipelineStageFlags srcStageMask,
VkPipelineStageFlags dstStageMask,
VkMemoryBarrier* pMemoryBarrier,
MVKCommandEncoder* cmdEncoder,
MVKCommandUse cmdUse) {
if (!mvkIsAnyFlagEnabled(dstStageMask, VK_PIPELINE_STAGE_HOST_BIT) ||
!mvkIsAnyFlagEnabled(pMemoryBarrier->dstAccessMask, VK_ACCESS_HOST_READ_BIT) ) { return; }
lock_guard<mutex> lock(_rezLock);
for (auto& rez : _resources) {
rez->applyMemoryBarrier(srcStageMask, dstStageMask, pMemoryBarrier, cmdEncoder, cmdUse);
}
}
uint64_t MVKDevice::getPerformanceTimestampImpl() { return mvkGetTimestamp(); }
void MVKDevice::addActivityPerformanceImpl(MVKPerformanceTracker& activityTracker,
uint64_t startTime, uint64_t endTime) {
lock_guard<mutex> lock(_perfLock);
double currInterval = mvkGetElapsedMilliseconds(startTime, endTime);
activityTracker.minimumDuration = ((activityTracker.minimumDuration == 0.0)
? currInterval :
min(currInterval, activityTracker.minimumDuration));
activityTracker.maximumDuration = max(currInterval, activityTracker.maximumDuration);
double totalInterval = (activityTracker.averageDuration * activityTracker.count++) + currInterval;
activityTracker.averageDuration = totalInterval / activityTracker.count;
if (_pMVKConfig->performanceLoggingFrameCount) {
MVKLogInfo("Performance to %s count: %d curr: %.3f ms, min: %.3f ms, max: %.3f ms, avg: %.3f ms",
getActivityPerformanceDescription(activityTracker),
activityTracker.count,
currInterval,
activityTracker.minimumDuration,
activityTracker.maximumDuration,
activityTracker.averageDuration);
}
}
const char* MVKDevice::getActivityPerformanceDescription(MVKPerformanceTracker& activityTracker) {
if (&activityTracker == &_performanceStatistics.shaderCompilation.hashShaderCode) { return "hash shader SPIR-V code"; }
if (&activityTracker == &_performanceStatistics.shaderCompilation.spirvToMSL) { return "convert SPIR-V to MSL source code"; }
if (&activityTracker == &_performanceStatistics.shaderCompilation.mslCompile) { return "compile MSL source code into a MTLLibrary"; }
if (&activityTracker == &_performanceStatistics.shaderCompilation.mslLoad) { return "load pre-compiled MSL code into a MTLLibrary"; }
if (&activityTracker == &_performanceStatistics.shaderCompilation.shaderLibraryFromCache) { return "retrieve shader library from the cache"; }
if (&activityTracker == &_performanceStatistics.shaderCompilation.functionRetrieval) { return "retrieve a MTLFunction from a MTLLibrary"; }
if (&activityTracker == &_performanceStatistics.shaderCompilation.functionSpecialization) { return "specialize a retrieved MTLFunction"; }
if (&activityTracker == &_performanceStatistics.shaderCompilation.pipelineCompile) { return "compile MTLFunctions into a pipeline"; }
if (&activityTracker == &_performanceStatistics.pipelineCache.sizePipelineCache) { return "calculate cache size required to write MSL to pipeline cache"; }
if (&activityTracker == &_performanceStatistics.pipelineCache.writePipelineCache) { return "write MSL to pipeline cache"; }
if (&activityTracker == &_performanceStatistics.pipelineCache.readPipelineCache) { return "read MSL from pipeline cache"; }
if (&activityTracker == &_performanceStatistics.queue.mtlQueueAccess) { return "access MTLCommandQueue"; }
if (&activityTracker == &_performanceStatistics.queue.mtlCommandBufferCompletion) { return "complete MTLCommandBuffer"; }
return "Unknown performance activity";
}
void MVKDevice::getPerformanceStatistics(MVKPerformanceStatistics* pPerf) {
lock_guard<mutex> lock(_perfLock);
if (pPerf) { *pPerf = _performanceStatistics; }
}
#pragma mark Metal
MTLCompileOptions* MVKDevice::getMTLCompileOptions() {
MTLCompileOptions* opts = [[MTLCompileOptions new] autorelease];
opts.languageVersion = _pMetalFeatures->mslVersionEnum;
return opts;
}
uint32_t MVKDevice::getMetalBufferIndexForVertexAttributeBinding(uint32_t binding) {
return ((_pMetalFeatures->maxPerStageBufferCount - 1) - binding);
}
MTLPixelFormat MVKDevice::getMTLPixelFormatFromVkFormat(VkFormat vkFormat, MVKBaseObject* mvkObj) {
MTLPixelFormat mtlPixFmt = mvkMTLPixelFormatFromVkFormatInObj(vkFormat, mvkObj);
#if MVK_MACOS
if (mtlPixFmt == MTLPixelFormatDepth24Unorm_Stencil8 &&
!getMTLDevice().isDepth24Stencil8PixelFormatSupported) {
return MTLPixelFormatDepth32Float_Stencil8;
}
#endif
return mtlPixFmt;
}
VkDeviceSize MVKDevice::getVkFormatTexelBufferAlignment(VkFormat format, MVKBaseObject* mvkObj) {
VkDeviceSize deviceAlignment = mvkMTLPixelFormatLinearTextureAlignment(getMTLPixelFormatFromVkFormat(format, mvkObj), getMTLDevice());
return deviceAlignment ? deviceAlignment : _pProperties->limits.minTexelBufferOffsetAlignment;
}
id<MTLBuffer> MVKDevice::getGlobalVisibilityResultMTLBuffer() {
lock_guard<mutex> lock(_vizLock);
return _globalVisibilityResultMTLBuffer;
}
uint32_t MVKDevice::expandVisibilityResultMTLBuffer(uint32_t queryCount) {
lock_guard<mutex> lock(_vizLock);
// Ensure we don't overflow the maximum number of queries
_globalVisibilityQueryCount += queryCount;
VkDeviceSize reqBuffLen = (VkDeviceSize)_globalVisibilityQueryCount * kMVKQuerySlotSizeInBytes;
VkDeviceSize maxBuffLen = _pMetalFeatures->maxQueryBufferSize;
VkDeviceSize newBuffLen = min(reqBuffLen, maxBuffLen);
_globalVisibilityQueryCount = uint32_t(newBuffLen / kMVKQuerySlotSizeInBytes);
if (reqBuffLen > maxBuffLen) {
reportError(VK_ERROR_OUT_OF_DEVICE_MEMORY, "vkCreateQueryPool(): A maximum of %d total queries are available on this device in its current configuration. See the API notes for the MVKConfiguration.supportLargeQueryPools configuration parameter for more info.", _globalVisibilityQueryCount);
}
NSUInteger mtlBuffLen = mvkAlignByteOffset(newBuffLen, _pMetalFeatures->mtlBufferAlignment);
MTLResourceOptions mtlBuffOpts = MTLResourceStorageModeShared | MTLResourceCPUCacheModeDefaultCache;
[_globalVisibilityResultMTLBuffer release];
_globalVisibilityResultMTLBuffer = [getMTLDevice() newBufferWithLength: mtlBuffLen options: mtlBuffOpts]; // retained
return _globalVisibilityQueryCount - queryCount; // Might be lower than requested if an overflow occurred
}
#pragma mark Construction
MVKDevice::MVKDevice(MVKPhysicalDevice* physicalDevice, const VkDeviceCreateInfo* pCreateInfo) :
_enabledFeatures(),
_enabledStorage16Features(),
_enabledStorage8Features(),
_enabledF16I8Features(),
_enabledVarPtrFeatures(),
_enabledHostQryResetFeatures(),
_enabledVtxAttrDivFeatures(),
_enabledPortabilityFeatures(),
_enabledExtensions(this)
{
initPerformanceTracking();
initPhysicalDevice(physicalDevice);
enableFeatures(pCreateInfo);
enableExtensions(pCreateInfo);
_globalVisibilityResultMTLBuffer = nil;
_globalVisibilityQueryCount = 0;
_commandResourceFactory = new MVKCommandResourceFactory(this);
initQueues(pCreateInfo);
MVKLogInfo("Created VkDevice to run on GPU %s with the following %d Vulkan extensions enabled:%s",
_pProperties->deviceName,
_enabledExtensions.getEnabledCount(),
_enabledExtensions.enabledNamesString("\n\t\t", true).c_str());
}
void MVKDevice::initPerformanceTracking() {
MVKPerformanceTracker initPerf;
initPerf.count = 0;
initPerf.averageDuration = 0.0;
initPerf.minimumDuration = 0.0;
initPerf.maximumDuration = 0.0;
_performanceStatistics.shaderCompilation.hashShaderCode = initPerf;
_performanceStatistics.shaderCompilation.spirvToMSL = initPerf;
_performanceStatistics.shaderCompilation.mslCompile = initPerf;
_performanceStatistics.shaderCompilation.mslLoad = initPerf;
_performanceStatistics.shaderCompilation.shaderLibraryFromCache = initPerf;
_performanceStatistics.shaderCompilation.functionRetrieval = initPerf;
_performanceStatistics.shaderCompilation.functionSpecialization = initPerf;
_performanceStatistics.shaderCompilation.pipelineCompile = initPerf;
_performanceStatistics.pipelineCache.sizePipelineCache = initPerf;
_performanceStatistics.pipelineCache.writePipelineCache = initPerf;
_performanceStatistics.pipelineCache.readPipelineCache = initPerf;
_performanceStatistics.queue.mtlQueueAccess = initPerf;
_performanceStatistics.queue.mtlCommandBufferCompletion = initPerf;
}
void MVKDevice::initPhysicalDevice(MVKPhysicalDevice* physicalDevice) {
_physicalDevice = physicalDevice;
_pMVKConfig = _physicalDevice->_mvkInstance->getMoltenVKConfiguration();
_pMetalFeatures = _physicalDevice->getMetalFeatures();
_pProperties = &_physicalDevice->_properties;
_pMemoryProperties = &_physicalDevice->_memoryProperties;
#if MVK_MACOS
// If we have selected a high-power GPU and want to force the window system
// to use it, force the window system to use a high-power GPU by calling the
// MTLCreateSystemDefaultDevice function, and if that GPU is the same as the
// selected GPU, update the MTLDevice instance used by the MVKPhysicalDevice.
id<MTLDevice> mtlDevice = _physicalDevice->getMTLDevice();
if (_pMVKConfig->switchSystemGPU && !(mtlDevice.isLowPower || mtlDevice.isHeadless) ) {
id<MTLDevice> sysMTLDevice = MTLCreateSystemDefaultDevice();
if (mvkGetRegistryID(sysMTLDevice) == mvkGetRegistryID(mtlDevice)) {
_physicalDevice->replaceMTLDevice(sysMTLDevice);
}
}
#endif
}
void MVKDevice::enableFeatures(const VkDeviceCreateInfo* pCreateInfo) {
// Start with all features disabled
memset((void*)&_enabledFeatures, 0, sizeof(_enabledFeatures));
memset((void*)&_enabledStorage16Features, 0, sizeof(_enabledStorage16Features));
memset((void*)&_enabledStorage8Features, 0, sizeof(_enabledStorage8Features));
memset((void*)&_enabledF16I8Features, 0, sizeof(_enabledF16I8Features));
memset((void*)&_enabledVarPtrFeatures, 0, sizeof(_enabledVarPtrFeatures));
memset((void*)&_enabledHostQryResetFeatures, 0, sizeof(_enabledHostQryResetFeatures));
memset((void*)&_enabledVtxAttrDivFeatures, 0, sizeof(_enabledVtxAttrDivFeatures));
memset((void*)&_enabledPortabilityFeatures, 0, sizeof(_enabledPortabilityFeatures));
// Fetch the available physical device features.
VkPhysicalDevicePortabilitySubsetFeaturesEXTX pdPortabilityFeatures;
pdPortabilityFeatures.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PORTABILITY_SUBSET_FEATURES_EXTX;
pdPortabilityFeatures.pNext = NULL;
VkPhysicalDeviceVertexAttributeDivisorFeaturesEXT pdVtxAttrDivFeatures;
pdVtxAttrDivFeatures.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VERTEX_ATTRIBUTE_DIVISOR_FEATURES_EXT;
pdVtxAttrDivFeatures.pNext = &pdPortabilityFeatures;
VkPhysicalDeviceHostQueryResetFeaturesEXT pdHostQryResetFeatures;
pdHostQryResetFeatures.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_HOST_QUERY_RESET_FEATURES_EXT;
pdHostQryResetFeatures.pNext = &pdVtxAttrDivFeatures;
VkPhysicalDeviceVariablePointerFeatures pdVarPtrFeatures;
pdVarPtrFeatures.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VARIABLE_POINTER_FEATURES;
pdVarPtrFeatures.pNext = &pdHostQryResetFeatures;
VkPhysicalDeviceFloat16Int8FeaturesKHR pdF16I8Features;
pdF16I8Features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FLOAT16_INT8_FEATURES_KHR;
pdF16I8Features.pNext = &pdVarPtrFeatures;
VkPhysicalDevice8BitStorageFeaturesKHR pdStorage8Features;
pdStorage8Features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_8BIT_STORAGE_FEATURES_KHR;
pdStorage8Features.pNext = &pdF16I8Features;
VkPhysicalDevice16BitStorageFeatures pdStorage16Features;
pdStorage16Features.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_16BIT_STORAGE_FEATURES;
pdStorage16Features.pNext = &pdStorage8Features;
VkPhysicalDeviceFeatures2 pdFeats2;
pdFeats2.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2;
pdFeats2.pNext = &pdStorage16Features;
_physicalDevice->getFeatures(&pdFeats2);
//Enable device features based on requested and available features
if (pCreateInfo->pEnabledFeatures) {
enableFeatures(&_enabledFeatures.robustBufferAccess,
&pCreateInfo->pEnabledFeatures->robustBufferAccess,
&pdFeats2.features.robustBufferAccess, 55);
}
auto* next = (MVKVkAPIStructHeader*)pCreateInfo->pNext;
while (next) {
switch ((uint32_t)next->sType) {
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2: {
auto* requestedFeatures = (VkPhysicalDeviceFeatures2*)next;
enableFeatures(&_enabledFeatures.robustBufferAccess,
&requestedFeatures->features.robustBufferAccess,
&pdFeats2.features.robustBufferAccess, 55);
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_16BIT_STORAGE_FEATURES: {
auto* requestedFeatures = (VkPhysicalDevice16BitStorageFeatures*)next;
enableFeatures(&_enabledStorage16Features.storageBuffer16BitAccess,
&requestedFeatures->storageBuffer16BitAccess,
&pdStorage16Features.storageBuffer16BitAccess, 4);
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_8BIT_STORAGE_FEATURES_KHR: {
auto* requestedFeatures = (VkPhysicalDevice8BitStorageFeaturesKHR*)next;
enableFeatures(&_enabledStorage8Features.storageBuffer8BitAccess,
&requestedFeatures->storageBuffer8BitAccess,
&pdStorage8Features.storageBuffer8BitAccess, 3);
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FLOAT16_INT8_FEATURES_KHR: {
auto* requestedFeatures = (VkPhysicalDeviceFloat16Int8FeaturesKHR*)next;
enableFeatures(&_enabledF16I8Features.shaderFloat16,
&requestedFeatures->shaderFloat16,
&pdF16I8Features.shaderFloat16, 2);
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VARIABLE_POINTER_FEATURES: {
auto* requestedFeatures = (VkPhysicalDeviceVariablePointerFeatures*)next;
enableFeatures(&_enabledVarPtrFeatures.variablePointersStorageBuffer,
&requestedFeatures->variablePointersStorageBuffer,
&pdVarPtrFeatures.variablePointersStorageBuffer, 2);
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_HOST_QUERY_RESET_FEATURES_EXT: {
auto* requestedFeatures = (VkPhysicalDeviceHostQueryResetFeaturesEXT*)next;
enableFeatures(&_enabledHostQryResetFeatures.hostQueryReset,
&requestedFeatures->hostQueryReset,
&pdHostQryResetFeatures.hostQueryReset, 1);
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VERTEX_ATTRIBUTE_DIVISOR_FEATURES_EXT: {
auto* requestedFeatures = (VkPhysicalDeviceVertexAttributeDivisorFeaturesEXT*)next;
enableFeatures(&_enabledVtxAttrDivFeatures.vertexAttributeInstanceRateDivisor,
&requestedFeatures->vertexAttributeInstanceRateDivisor,
&pdVtxAttrDivFeatures.vertexAttributeInstanceRateDivisor, 2);
break;
}
case VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PORTABILITY_SUBSET_FEATURES_EXTX: {
auto* requestedFeatures = (VkPhysicalDevicePortabilitySubsetFeaturesEXTX*)next;
enableFeatures(&_enabledPortabilityFeatures.triangleFans,
&requestedFeatures->triangleFans,
&pdPortabilityFeatures.triangleFans, 5);
break;
}
default:
break;
}
next = (MVKVkAPIStructHeader*)next->pNext;
}
}
void MVKDevice::enableFeatures(const VkBool32* pEnable, const VkBool32* pRequested, const VkBool32* pAvailable, uint32_t count) {
for (uint32_t i = 0; i < count; i++) {
((VkBool32*)pEnable)[i] = pRequested[i] && pAvailable[i];
if (pRequested[i] && !pAvailable[i]) {
setConfigurationResult(reportError(VK_ERROR_FEATURE_NOT_PRESENT, "vkCreateDevice(): Requested feature is not available on this device."));
}
}
}
void MVKDevice::enableExtensions(const VkDeviceCreateInfo* pCreateInfo) {
MVKExtensionList* pWritableExtns = (MVKExtensionList*)&_enabledExtensions;
setConfigurationResult(pWritableExtns->enable(pCreateInfo->enabledExtensionCount,
pCreateInfo->ppEnabledExtensionNames,
getPhysicalDevice()->getSupportedExtensions()));
}
// Create the command queues
void MVKDevice::initQueues(const VkDeviceCreateInfo* pCreateInfo) {
vector<MVKQueueFamily*> qFams = _physicalDevice->getQueueFamilies();
uint32_t qrCnt = pCreateInfo->queueCreateInfoCount;
for (uint32_t qrIdx = 0; qrIdx < qrCnt; qrIdx++) {
const VkDeviceQueueCreateInfo* pQFInfo = &pCreateInfo->pQueueCreateInfos[qrIdx];
uint32_t qfIdx = pQFInfo->queueFamilyIndex;
MVKQueueFamily* qFam = qFams[qfIdx];
VkQueueFamilyProperties qfProps;
qFam->getProperties(&qfProps);
_queuesByQueueFamilyIndex.resize(qfIdx + 1); // Ensure an entry for this queue family exists
auto& queues = _queuesByQueueFamilyIndex[qfIdx];
uint32_t qCnt = min(pQFInfo->queueCount, qfProps.queueCount);
for (uint32_t qIdx = 0; qIdx < qCnt; qIdx++) {
queues.push_back(new MVKQueue(this, qFam, qIdx, pQFInfo->pQueuePriorities[qIdx]));
}
}
}
MVKDevice::~MVKDevice() {
for (auto& queues : _queuesByQueueFamilyIndex) {
mvkDestroyContainerContents(queues);
}
[_globalVisibilityResultMTLBuffer release];
_commandResourceFactory->destroy();
}
#pragma mark -
#pragma mark Support functions
uint64_t mvkRecommendedMaxWorkingSetSize(id<MTLDevice> mtlDevice) {
#if MVK_MACOS
if ( [mtlDevice respondsToSelector: @selector(recommendedMaxWorkingSetSize)]) {
return mtlDevice.recommendedMaxWorkingSetSize;
}
#endif
#if MVK_IOS
// GPU and CPU use shared memory. Estimate the current free memory in the system.
mach_port_t host_port;
mach_msg_type_number_t host_size;
vm_size_t pagesize;
host_port = mach_host_self();
host_size = sizeof(vm_statistics_data_t) / sizeof(integer_t);
host_page_size(host_port, &pagesize);
vm_statistics_data_t vm_stat;
if (host_statistics(host_port, HOST_VM_INFO, (host_info_t)&vm_stat, &host_size) == KERN_SUCCESS ) {
return vm_stat.free_count * pagesize;
}
#endif
return 128 * MEBI; // Conservative minimum for macOS GPU's & iOS shared memory
}
#if MVK_MACOS
static uint32_t mvkGetEntryProperty(io_registry_entry_t entry, CFStringRef propertyName) {
uint32_t value = 0;
CFTypeRef cfProp = IORegistryEntrySearchCFProperty(entry,
kIOServicePlane,
propertyName,
kCFAllocatorDefault,
kIORegistryIterateRecursively |
kIORegistryIterateParents);
if (cfProp) {
const uint32_t* pValue = reinterpret_cast<const uint32_t*>(CFDataGetBytePtr((CFDataRef)cfProp));
if (pValue) { value = *pValue; }
CFRelease(cfProp);
}
return value;
}
void mvkPopulateGPUInfo(VkPhysicalDeviceProperties& devProps, id<MTLDevice> mtlDevice) {
static const uint32_t kIntelVendorId = 0x8086;
bool isFound = false;
bool isIntegrated = mtlDevice.isLowPower;
devProps.deviceType = isIntegrated ? VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU : VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU;
strlcpy(devProps.deviceName, mtlDevice.name.UTF8String, VK_MAX_PHYSICAL_DEVICE_NAME_SIZE);
// If the device has an associated registry ID, we can use that to get the associated IOKit node.
// The match dictionary is consumed by IOServiceGetMatchingServices and does not need to be released.
io_registry_entry_t entry;
uint64_t regID = mvkGetRegistryID(mtlDevice);
if (regID) {
entry = IOServiceGetMatchingService(kIOMasterPortDefault, IORegistryEntryIDMatching(regID));
if (entry) {
// That returned the IOGraphicsAccelerator nub. Its parent, then, is the actual
// PCI device.
io_registry_entry_t parent;
if (IORegistryEntryGetParentEntry(entry, kIOServicePlane, &parent) == kIOReturnSuccess) {
isFound = true;
devProps.vendorID = mvkGetEntryProperty(parent, CFSTR("vendor-id"));
devProps.deviceID = mvkGetEntryProperty(parent, CFSTR("device-id"));
IOObjectRelease(parent);
}
IOObjectRelease(entry);
}
}
// Iterate all GPU's, looking for a match.
// The match dictionary is consumed by IOServiceGetMatchingServices and does not need to be released.
io_iterator_t entryIterator;
if (!isFound && IOServiceGetMatchingServices(kIOMasterPortDefault,
IOServiceMatching("IOPCIDevice"),
&entryIterator) == kIOReturnSuccess) {
while ( !isFound && (entry = IOIteratorNext(entryIterator)) ) {
if (