VkImageAspectFlags vk_format_to_aspect_flags(VkFormat format) {
switch (format) {
case VK_FORMAT_S8_UINT:
return VK_IMAGE_ASPECT_STENCIL_BIT;
case VK_FORMAT_D24_UNORM_S8_UINT: // fallthrough
case VK_FORMAT_D32_SFLOAT_S8_UINT:
return VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT;
default:
SkASSERT(GrVkFormatToPixelConfig(format, nullptr));
return VK_IMAGE_ASPECT_COLOR_BIT;
}
}
bool VulkanWindowContext::createSwapchain(uint32_t width, uint32_t height,
const DisplayParams& params) {
// check for capabilities
VkSurfaceCapabilitiesKHR caps;
VkResult res = fGetPhysicalDeviceSurfaceCapabilitiesKHR(fBackendContext->fPhysicalDevice,
fSurface, &caps);
if (VK_SUCCESS != res) {
return false;
}
uint32_t surfaceFormatCount;
res = fGetPhysicalDeviceSurfaceFormatsKHR(fBackendContext->fPhysicalDevice, fSurface,
&surfaceFormatCount, nullptr);
if (VK_SUCCESS != res) {
return false;
}
SkAutoMalloc surfaceFormatAlloc(surfaceFormatCount * sizeof(VkSurfaceFormatKHR));
VkSurfaceFormatKHR* surfaceFormats = (VkSurfaceFormatKHR*)surfaceFormatAlloc.get();
res = fGetPhysicalDeviceSurfaceFormatsKHR(fBackendContext->fPhysicalDevice, fSurface,
&surfaceFormatCount, surfaceFormats);
if (VK_SUCCESS != res) {
return false;
}
uint32_t presentModeCount;
res = fGetPhysicalDeviceSurfacePresentModesKHR(fBackendContext->fPhysicalDevice, fSurface,
&presentModeCount, nullptr);
if (VK_SUCCESS != res) {
return false;
}
SkAutoMalloc presentModeAlloc(presentModeCount * sizeof(VkPresentModeKHR));
VkPresentModeKHR* presentModes = (VkPresentModeKHR*)presentModeAlloc.get();
res = fGetPhysicalDeviceSurfacePresentModesKHR(fBackendContext->fPhysicalDevice, fSurface,
&presentModeCount, presentModes);
if (VK_SUCCESS != res) {
return false;
}
VkExtent2D extent = caps.currentExtent;
// use the hints
if (extent.width == (uint32_t)-1) {
extent.width = width;
extent.height = height;
}
// clamp width; to protect us from broken hints
if (extent.width < caps.minImageExtent.width) {
extent.width = caps.minImageExtent.width;
} else if (extent.width > caps.maxImageExtent.width) {
extent.width = caps.maxImageExtent.width;
}
// clamp height
if (extent.height < caps.minImageExtent.height) {
extent.height = caps.minImageExtent.height;
} else if (extent.height > caps.maxImageExtent.height) {
extent.height = caps.maxImageExtent.height;
}
fWidth = (int)extent.width;
fHeight = (int)extent.height;
uint32_t imageCount = caps.minImageCount + 2;
if (caps.maxImageCount > 0 && imageCount > caps.maxImageCount) {
// Application must settle for fewer images than desired:
imageCount = caps.maxImageCount;
}
VkImageUsageFlags usageFlags = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT |
VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
VK_IMAGE_USAGE_TRANSFER_DST_BIT;
SkASSERT((caps.supportedUsageFlags & usageFlags) == usageFlags);
SkASSERT(caps.supportedTransforms & caps.currentTransform);
SkASSERT(caps.supportedCompositeAlpha & (VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR |
VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR));
VkCompositeAlphaFlagBitsKHR composite_alpha =
(caps.supportedCompositeAlpha & VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR) ?
VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR :
VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
// Pick our surface format. For now, just make sure it matches our sRGB request:
VkFormat surfaceFormat = VK_FORMAT_UNDEFINED;
VkColorSpaceKHR colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
bool wantSRGB = kSRGB_SkColorProfileType == params.fProfileType;
for (uint32_t i = 0; i < surfaceFormatCount; ++i) {
GrPixelConfig config;
if (GrVkFormatToPixelConfig(surfaceFormats[i].format, &config) &&
GrPixelConfigIsSRGB(config) == wantSRGB) {
surfaceFormat = surfaceFormats[i].format;
colorSpace = surfaceFormats[i].colorSpace;
break;
}
}
fDisplayParams = params;
if (VK_FORMAT_UNDEFINED == surfaceFormat) {
return false;
}
// If mailbox mode is available, use it, as it is the lowest-latency non-
// tearing mode. If not, fall back to FIFO which is always available.
VkPresentModeKHR mode = VK_PRESENT_MODE_FIFO_KHR;
for (uint32_t i = 0; i < presentModeCount; ++i) {
// use mailbox
if (VK_PRESENT_MODE_MAILBOX_KHR == presentModes[i]) {
mode = presentModes[i];
break;
}
}
VkSwapchainCreateInfoKHR swapchainCreateInfo;
memset(&swapchainCreateInfo, 0, sizeof(VkSwapchainCreateInfoKHR));
swapchainCreateInfo.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
swapchainCreateInfo.surface = fSurface;
swapchainCreateInfo.minImageCount = imageCount;
swapchainCreateInfo.imageFormat = surfaceFormat;
swapchainCreateInfo.imageColorSpace = colorSpace;
swapchainCreateInfo.imageExtent = extent;
swapchainCreateInfo.imageArrayLayers = 1;
swapchainCreateInfo.imageUsage = usageFlags;
uint32_t queueFamilies[] = { fBackendContext->fGraphicsQueueIndex, fPresentQueueIndex };
if (fBackendContext->fGraphicsQueueIndex != fPresentQueueIndex) {
swapchainCreateInfo.imageSharingMode = VK_SHARING_MODE_CONCURRENT;
swapchainCreateInfo.queueFamilyIndexCount = 2;
swapchainCreateInfo.pQueueFamilyIndices = queueFamilies;
} else {
swapchainCreateInfo.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;
swapchainCreateInfo.queueFamilyIndexCount = 0;
swapchainCreateInfo.pQueueFamilyIndices = nullptr;
}
swapchainCreateInfo.preTransform = caps.currentTransform;;
swapchainCreateInfo.compositeAlpha = composite_alpha;
swapchainCreateInfo.presentMode = mode;
swapchainCreateInfo.clipped = true;
swapchainCreateInfo.oldSwapchain = fSwapchain;
res = fCreateSwapchainKHR(fBackendContext->fDevice, &swapchainCreateInfo, nullptr, &fSwapchain);
if (VK_SUCCESS != res) {
return false;
}
// destroy the old swapchain
if (swapchainCreateInfo.oldSwapchain != VK_NULL_HANDLE) {
GR_VK_CALL(fBackendContext->fInterface, DeviceWaitIdle(fBackendContext->fDevice));
this->destroyBuffers();
fDestroySwapchainKHR(fBackendContext->fDevice, swapchainCreateInfo.oldSwapchain, nullptr);
}
this->createBuffers(swapchainCreateInfo.imageFormat);
return true;
}
void VulkanWindowContext::createBuffers(VkFormat format) {
GrVkFormatToPixelConfig(format, &fPixelConfig);
fGetSwapchainImagesKHR(fBackendContext->fDevice, fSwapchain, &fImageCount, nullptr);
SkASSERT(fImageCount);
fImages = new VkImage[fImageCount];
fGetSwapchainImagesKHR(fBackendContext->fDevice, fSwapchain, &fImageCount, fImages);
// set up initial image layouts and create surfaces
fImageLayouts = new VkImageLayout[fImageCount];
fRenderTargets = new sk_sp<GrRenderTarget>[fImageCount];
fSurfaces = new sk_sp<SkSurface>[fImageCount];
for (uint32_t i = 0; i < fImageCount; ++i) {
fImageLayouts[i] = VK_IMAGE_LAYOUT_UNDEFINED;
GrBackendRenderTargetDesc desc;
GrVkImageInfo info;
info.fImage = fImages[i];
info.fAlloc = VK_NULL_HANDLE;
info.fImageLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
info.fImageTiling = VK_IMAGE_TILING_OPTIMAL;
info.fFormat = format;
info.fLevelCount = 1;
desc.fWidth = fWidth;
desc.fHeight = fHeight;
desc.fConfig = fPixelConfig;
desc.fOrigin = kTopLeft_GrSurfaceOrigin;
desc.fSampleCnt = 0;
desc.fStencilBits = 0;
desc.fRenderTargetHandle = (GrBackendObject) &info;
fRenderTargets[i].reset(fContext->textureProvider()->wrapBackendRenderTarget(desc));
fSurfaces[i] = this->createRenderSurface(fRenderTargets[i], 24);
}
// create the command pool for the command buffers
if (VK_NULL_HANDLE == fCommandPool) {
VkCommandPoolCreateInfo commandPoolInfo;
memset(&commandPoolInfo, 0, sizeof(VkCommandPoolCreateInfo));
commandPoolInfo.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
// this needs to be on the render queue
commandPoolInfo.queueFamilyIndex = fBackendContext->fGraphicsQueueIndex;
commandPoolInfo.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
GR_VK_CALL_ERRCHECK(fBackendContext->fInterface,
CreateCommandPool(fBackendContext->fDevice, &commandPoolInfo,
nullptr, &fCommandPool));
}
// set up the backbuffers
VkSemaphoreCreateInfo semaphoreInfo;
memset(&semaphoreInfo, 0, sizeof(VkSemaphoreCreateInfo));
semaphoreInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
semaphoreInfo.pNext = nullptr;
semaphoreInfo.flags = 0;
VkCommandBufferAllocateInfo commandBuffersInfo;
memset(&commandBuffersInfo, 0, sizeof(VkCommandBufferAllocateInfo));
commandBuffersInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
commandBuffersInfo.pNext = nullptr;
commandBuffersInfo.commandPool = fCommandPool;
commandBuffersInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
commandBuffersInfo.commandBufferCount = 2;
VkFenceCreateInfo fenceInfo;
memset(&fenceInfo, 0, sizeof(VkFenceCreateInfo));
fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
fenceInfo.pNext = nullptr;
fenceInfo.flags = VK_FENCE_CREATE_SIGNALED_BIT;
// we create one additional backbuffer structure here, because we want to
// give the command buffers they contain a chance to finish before we cycle back
fBackbuffers = new BackbufferInfo[fImageCount + 1];
for (uint32_t i = 0; i < fImageCount + 1; ++i) {
fBackbuffers[i].fImageIndex = -1;
GR_VK_CALL_ERRCHECK(fBackendContext->fInterface,
CreateSemaphore(fBackendContext->fDevice, &semaphoreInfo,
nullptr, &fBackbuffers[i].fAcquireSemaphore));
GR_VK_CALL_ERRCHECK(fBackendContext->fInterface,
CreateSemaphore(fBackendContext->fDevice, &semaphoreInfo,
nullptr, &fBackbuffers[i].fRenderSemaphore));
GR_VK_CALL_ERRCHECK(fBackendContext->fInterface,
AllocateCommandBuffers(fBackendContext->fDevice, &commandBuffersInfo,
fBackbuffers[i].fTransitionCmdBuffers));
GR_VK_CALL_ERRCHECK(fBackendContext->fInterface,
CreateFence(fBackendContext->fDevice, &fenceInfo, nullptr,
&fBackbuffers[i].fUsageFences[0]));
GR_VK_CALL_ERRCHECK(fBackendContext->fInterface,
CreateFence(fBackendContext->fDevice, &fenceInfo, nullptr,
&fBackbuffers[i].fUsageFences[1]));
}
fCurrentBackbufferIndex = fImageCount;
}
