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MobileGL/MobileGL/MG_Backend/DirectVulkan/Renderer/SwapchainObject.cpp
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// MobileGL - MobileGL/MG_Backend/DirectVulkan/Renderer/SwapchainObject.cpp
// Copyright (c) 2025-2026 MobileGL-Dev
// Licensed under the GNU Lesser General Public License v3.0:
// https://www.gnu.org/licenses/gpl-3.0.txt
// https://www.gnu.org/licenses/lgpl-3.0.txt
// SPDX-License-Identifier: LGPL-3.0-only
// End of Source File Header
#include "SwapchainObject.h"
#include "MG_Impl/GLImpl/Framebuffer/GL_Framebuffer.h"
#include "MG_State/GLState/TextureState/TextureObject2D.h"
#if defined(__has_include)
#if __has_include(<vulkan/vk_enum_string_helper.h>)
#include <vulkan/vk_enum_string_helper.h>
#define MOBILEGL_HAS_VK_ENUM_STRING_HELPER 1
#else
#define MOBILEGL_HAS_VK_ENUM_STRING_HELPER 0
#endif
#else
#define MOBILEGL_HAS_VK_ENUM_STRING_HELPER 0
#endif
#if !MOBILEGL_HAS_VK_ENUM_STRING_HELPER
static const char* string_VkFormat(VkFormat) {
return "VkFormat(unknown)";
}
static const char* string_VkColorSpaceKHR(VkColorSpaceKHR) {
return "VkColorSpaceKHR(unknown)";
}
static const char* string_VkPresentModeKHR(VkPresentModeKHR presentMode) {
switch (presentMode) {
case VK_PRESENT_MODE_IMMEDIATE_KHR:
return "VK_PRESENT_MODE_IMMEDIATE_KHR";
case VK_PRESENT_MODE_MAILBOX_KHR:
return "VK_PRESENT_MODE_MAILBOX_KHR";
case VK_PRESENT_MODE_FIFO_KHR:
return "VK_PRESENT_MODE_FIFO_KHR";
case VK_PRESENT_MODE_FIFO_RELAXED_KHR:
return "VK_PRESENT_MODE_FIFO_RELAXED_KHR";
default:
return "VkPresentModeKHR(unknown)";
}
}
static const char* string_VkSurfaceTransformFlagBitsKHR(VkSurfaceTransformFlagBitsKHR) {
return "VkSurfaceTransformFlagBitsKHR(unknown)";
}
#endif
namespace MobileGL::MG_Backend::DirectVulkan {
namespace {
Bool HasStencilComponent(VkFormat format) {
return format == VK_FORMAT_D24_UNORM_S8_UINT || format == VK_FORMAT_D32_SFLOAT_S8_UINT;
}
VkFormat FindSupportedDepthStencilFormat(VkPhysicalDevice physicalDevice) {
const VkFormat candidates[] = {VK_FORMAT_D24_UNORM_S8_UINT, VK_FORMAT_D32_SFLOAT_S8_UINT,
VK_FORMAT_D32_SFLOAT};
for (VkFormat format : candidates) {
VkFormatProperties props{};
vkGetPhysicalDeviceFormatProperties(physicalDevice, format, &props);
if ((props.optimalTilingFeatures & VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT) != 0) {
return format;
}
}
return VK_FORMAT_UNDEFINED;
}
Uint32 FindMemoryType(VkPhysicalDevice physicalDevice, Uint32 typeFilter, VkMemoryPropertyFlags properties) {
VkPhysicalDeviceMemoryProperties memProperties{};
vkGetPhysicalDeviceMemoryProperties(physicalDevice, &memProperties);
for (Uint32 i = 0; i < memProperties.memoryTypeCount; i++) {
if ((typeFilter & (1 << i)) &&
(memProperties.memoryTypes[i].propertyFlags & properties) == properties) {
return i;
}
}
MOBILEGL_ASSERT(false, "Failed to find suitable memory type.");
return 0;
}
} // namespace
SwapchainObject::SwapchainCapabilities SwapchainObject::GetSwapchainCapabilities(VkPhysicalDevice physicalDevice,
VkSurfaceKHR surface) {
SwapchainCapabilities swapchainCapabilities{};
VK_VERIFY(
vkGetPhysicalDeviceSurfaceCapabilitiesKHR(physicalDevice, surface, &swapchainCapabilities.capabilities));
Uint32 formatCount = 0;
VK_VERIFY(vkGetPhysicalDeviceSurfaceFormatsKHR(physicalDevice, surface, &formatCount, nullptr));
if (formatCount != 0) {
swapchainCapabilities.surfaceFormats.resize(formatCount);
VK_VERIFY(vkGetPhysicalDeviceSurfaceFormatsKHR(
physicalDevice, surface, &formatCount, swapchainCapabilities.surfaceFormats.data()));
}
Uint32 presentModeCount = 0;
VK_VERIFY(
vkGetPhysicalDeviceSurfacePresentModesKHR(physicalDevice, surface, &presentModeCount, nullptr));
if (presentModeCount != 0) {
swapchainCapabilities.presentModes.resize(presentModeCount);
VK_VERIFY(vkGetPhysicalDeviceSurfacePresentModesKHR(
physicalDevice, surface, &presentModeCount, swapchainCapabilities.presentModes.data()));
}
return swapchainCapabilities;
}
VkSurfaceFormatKHR SwapchainObject::ChooseSwapchainSurfaceFormat(
const Vector<VkSurfaceFormatKHR>& availableFormats) {
for (const auto& availableFormat : availableFormats) {
if ((availableFormat.format == VK_FORMAT_B8G8R8A8_UNORM ||
availableFormat.format == VK_FORMAT_R8G8B8A8_UNORM) &&
availableFormat.colorSpace == VK_COLOR_SPACE_SRGB_NONLINEAR_KHR) {
return availableFormat;
}
}
for (const auto& availableFormat : availableFormats) {
if ((availableFormat.format == VK_FORMAT_B8G8R8A8_SRGB ||
availableFormat.format == VK_FORMAT_R8G8B8A8_SRGB) &&
availableFormat.colorSpace == VK_COLOR_SPACE_SRGB_NONLINEAR_KHR) {
return availableFormat;
}
}
// TODO: Properly rank other formats
return availableFormats[0];
}
VkPresentModeKHR SwapchainObject::ChooseSwapchainPresentMode(
const Vector<VkPresentModeKHR>& availablePresentModes) {
for (auto desiredPresentMode : s_desiredPresentModes) {
for (const auto& presentMode : availablePresentModes) {
if (presentMode == desiredPresentMode) {
return presentMode;
}
}
}
// TODO: Properly rank other modes
return availablePresentModes[0];
}
void SwapchainObject::Create(VkDevice device, VkPhysicalDevice physicalDevice, VkSurfaceKHR surface,
Uint32 graphicsQueueFamily, Uint32 presentQueueFamily, Uint32 minImageCountHint,
VkExtent2D desiredExtent) {
const auto swapchainCapabilities = GetSwapchainCapabilities(physicalDevice, surface);
MOBILEGL_ASSERT(swapchainCapabilities.IsComplete(),
"SwapchainObject::Create failed: incomplete swapchain capabilities");
MGLOG_I("Got %d surface formats:", swapchainCapabilities.surfaceFormats.size());
for (const auto& sf : swapchainCapabilities.surfaceFormats) {
MGLOG_D(" [%s, %s]", string_VkFormat(sf.format), string_VkColorSpaceKHR(sf.colorSpace));
}
const auto pickedSurfaceFormat = ChooseSwapchainSurfaceFormat(swapchainCapabilities.surfaceFormats);
MGLOG_I("Picked surface format: [%s, %s]", string_VkFormat(pickedSurfaceFormat.format),
string_VkColorSpaceKHR(pickedSurfaceFormat.colorSpace));
MGLOG_I("Got %d present modes:", swapchainCapabilities.presentModes.size());
for (const auto& pm : swapchainCapabilities.presentModes) {
MGLOG_D(" %s", string_VkPresentModeKHR(pm));
}
const auto presentMode = ChooseSwapchainPresentMode(swapchainCapabilities.presentModes);
MGLOG_I("Picked present mode: %s", string_VkPresentModeKHR(presentMode));
const auto& swapchainCaps = swapchainCapabilities.capabilities;
Uint32 targetImageCount = std::max<Uint32>(minImageCountHint, swapchainCaps.minImageCount);
if (swapchainCaps.maxImageCount != 0) {
targetImageCount = std::min(targetImageCount, swapchainCaps.maxImageCount);
}
MGLOG_I("Set minImageCount = %u", targetImageCount);
MGLOG_I("Swapchain currentTransform = %s",
string_VkSurfaceTransformFlagBitsKHR(swapchainCaps.currentTransform));
VkSwapchainCreateInfoKHR createInfo{VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR};
createInfo.surface = surface;
createInfo.minImageCount = targetImageCount;
createInfo.imageFormat = pickedSurfaceFormat.format;
createInfo.imageColorSpace = pickedSurfaceFormat.colorSpace;
createInfo.imageExtent = swapchainCaps.currentExtent;
if (createInfo.imageExtent.width == UINT32_MAX || createInfo.imageExtent.height == UINT32_MAX) {
createInfo.imageExtent.width = std::clamp(desiredExtent.width,
swapchainCaps.minImageExtent.width,
swapchainCaps.maxImageExtent.width);
createInfo.imageExtent.height = std::clamp(desiredExtent.height,
swapchainCaps.minImageExtent.height,
swapchainCaps.maxImageExtent.height);
}
const VkExtent2D defaultFramebufferExtent = createInfo.imageExtent;
if (swapchainCaps.currentTransform == VK_SURFACE_TRANSFORM_ROTATE_90_BIT_KHR ||
swapchainCaps.currentTransform == VK_SURFACE_TRANSFORM_ROTATE_270_BIT_KHR) {
std::swap(createInfo.imageExtent.width, createInfo.imageExtent.height);
}
createInfo.imageArrayLayers = 1;
const VkImageUsageFlags requiredImageUsage =
VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
MOBILEGL_ASSERT((swapchainCaps.supportedUsageFlags & requiredImageUsage) == requiredImageUsage,
"Swapchain does not support required usage flags (COLOR_ATTACHMENT | TRANSFER_DST). "
"supportedUsageFlags=0x%x",
static_cast<Uint32>(swapchainCaps.supportedUsageFlags));
VkImageUsageFlags imageUsage = requiredImageUsage;
if ((swapchainCaps.supportedUsageFlags & VK_IMAGE_USAGE_TRANSFER_SRC_BIT) != 0) {
imageUsage |= VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
}
createInfo.imageUsage = imageUsage;
MGLOG_I("Swapchain imageUsage = 0x%x (supportedUsageFlags = 0x%x)", static_cast<Uint32>(createInfo.imageUsage),
static_cast<Uint32>(swapchainCaps.supportedUsageFlags));
Uint32 queueFamilyIndices[] = {graphicsQueueFamily, presentQueueFamily};
if (graphicsQueueFamily != presentQueueFamily) {
createInfo.imageSharingMode = VK_SHARING_MODE_CONCURRENT;
createInfo.queueFamilyIndexCount = 2;
createInfo.pQueueFamilyIndices = queueFamilyIndices;
} else {
createInfo.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;
createInfo.queueFamilyIndexCount = 0;
createInfo.pQueueFamilyIndices = nullptr;
}
createInfo.preTransform = swapchainCaps.currentTransform;
MGLOG_I("Set swapchain preTransform = %s", string_VkSurfaceTransformFlagBitsKHR(createInfo.preTransform));
const VkCompositeAlphaFlagBitsKHR compositeAlphaCandidates[] = {
VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR,
VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR,
VK_COMPOSITE_ALPHA_POST_MULTIPLIED_BIT_KHR,
VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR
};
createInfo.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
for (auto candidate : compositeAlphaCandidates) {
if ((swapchainCaps.supportedCompositeAlpha & candidate) != 0) {
createInfo.compositeAlpha = candidate;
break;
}
}
createInfo.presentMode = presentMode;
createInfo.clipped = VK_TRUE;
createInfo.oldSwapchain = VK_NULL_HANDLE;
m_surfaceFormat = {createInfo.imageFormat, createInfo.imageColorSpace};
m_extent = createInfo.imageExtent;
// The surface-space extent this swapchain was built from, i.e. before the
// quarter-turn swap above. Out-of-date checks must compare in THIS space: comparing a
// freshly queried currentExtent against the swapped m_extent flips axes every rotation
// and makes the comparison alternate forever.
m_surfaceExtent = defaultFramebufferExtent;
m_preTransform = createInfo.preTransform;
VK_VERIFY(vkCreateSwapchainKHR(device, &createInfo, nullptr, &m_swapchain));
Uint32 imageCount = 0;
VK_VERIFY(vkGetSwapchainImagesKHR(device, m_swapchain, &imageCount, nullptr));
m_images.resize(imageCount, VK_NULL_HANDLE);
VK_VERIFY(vkGetSwapchainImagesKHR(device, m_swapchain, &imageCount, m_images.data()));
m_imageLayouts.assign(imageCount, VK_IMAGE_LAYOUT_UNDEFINED);
// Fresh swapchain images hold garbage until a render pass stores into them.
m_imageContentDefined.assign(imageCount, false);
m_depthStencilContentDefined.assign(imageCount, false);
CreateImageViews(device);
CreateDepthStencilResources(device, physicalDevice);
MGLOG_I("Swapchain created, extent = %dx%d, swapchain imageCount = %d", m_extent.width, m_extent.height,
imageCount);
// Properly initialize Default FBO here
auto& defaultFBOInfo = MG_Impl::GLImpl::FramebufferImpl::pDefaultFramebufferInfo;
const Int extentWidth = static_cast<Int>(defaultFramebufferExtent.width);
const Int extentHeight = static_cast<Int>(defaultFramebufferExtent.height);
const SizeT defaultAttachmentByteSize =
static_cast<SizeT>(defaultFramebufferExtent.width) *
static_cast<SizeT>(defaultFramebufferExtent.height) * 4;
auto* colorTex = static_cast<MG_State::GLState::TextureObject2D*>(defaultFBOInfo->colorAttachment.get());
colorTex->AllocateStorage(
TextureUploadTarget::Texture2D, 0, {
{extentWidth, extentHeight, 1},
defaultAttachmentByteSize}); // TODO: 4 is format size
TextureInternalFormat depthFormat = TextureInternalFormat::Depth24Stencil8;
switch (m_depthStencilFormat) {
case VK_FORMAT_D24_UNORM_S8_UINT:
depthFormat = TextureInternalFormat::Depth24Stencil8;
break;
case VK_FORMAT_D32_SFLOAT_S8_UINT:
depthFormat = TextureInternalFormat::Depth32FStencil8;
break;
case VK_FORMAT_D32_SFLOAT:
depthFormat = TextureInternalFormat::DepthComponent32F;
break;
default:
depthFormat = TextureInternalFormat::Depth24Stencil8;
break;
}
auto* depthTex = static_cast<MG_State::GLState::TextureObject2D*>(defaultFBOInfo->depthAttachment.get());
depthTex->SetInternalFormat(depthFormat);
depthTex->AllocateStorage(TextureUploadTarget::Texture2D, 0, {
{extentWidth, extentHeight, 1},
defaultAttachmentByteSize}); // TODO: 4 is format size
// The default FBO's stencil attachment must track the swapchain extent:
// FramebufferObject::CheckCompleteness requires every valid attachment
// to share the same dimensions, and Init.cpp leaves a 512x512 placeholder.
// Without this the retrace-layer glReadPixels snapshot fails with
// GL_INVALID_FRAMEBUFFER_OPERATION on DirectVulkan.
TextureInternalFormat stencilFormat = TextureInternalFormat::Depth24Stencil8;
switch (m_depthStencilFormat) {
case VK_FORMAT_D32_SFLOAT_S8_UINT:
stencilFormat = TextureInternalFormat::Depth32FStencil8;
break;
case VK_FORMAT_D24_UNORM_S8_UINT:
stencilFormat = TextureInternalFormat::Depth24Stencil8;
break;
default:
// No stencil plane; mirror the depth format for consistency.
stencilFormat = depthFormat;
break;
}
auto* stencilTex = static_cast<MG_State::GLState::TextureObject2D*>(defaultFBOInfo->stencilAttachment.get());
stencilTex->SetInternalFormat(stencilFormat);
stencilTex->AllocateStorage(TextureUploadTarget::Texture2D, 0, {
{extentWidth, extentHeight, 1},
defaultAttachmentByteSize}); // TODO: 4 is format size
}
void SwapchainObject::CreateDepthStencilResources(VkDevice device, VkPhysicalDevice physicalDevice) {
DestroyDepthStencilResources(device);
const auto imageCount = static_cast<Uint32>(m_images.size());
if (imageCount == 0) {
return;
}
m_depthStencilFormat = FindSupportedDepthStencilFormat(physicalDevice);
MOBILEGL_ASSERT(m_depthStencilFormat != VK_FORMAT_UNDEFINED, "No supported depth/stencil format found.");
m_depthStencilImages.assign(imageCount, VK_NULL_HANDLE);
m_depthStencilImageMemories.assign(imageCount, VK_NULL_HANDLE);
m_depthStencilImageViews.assign(imageCount, VK_NULL_HANDLE);
m_depthStencilImageLayouts.assign(imageCount, VK_IMAGE_LAYOUT_UNDEFINED);
for (Uint32 i = 0; i < imageCount; ++i) {
VkImageCreateInfo imageInfo{};
imageInfo.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
imageInfo.imageType = VK_IMAGE_TYPE_2D;
imageInfo.extent.width = m_extent.width;
imageInfo.extent.height = m_extent.height;
imageInfo.extent.depth = 1;
imageInfo.mipLevels = 1;
imageInfo.arrayLayers = 1;
imageInfo.format = m_depthStencilFormat;
imageInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
imageInfo.usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
imageInfo.samples = VK_SAMPLE_COUNT_1_BIT;
imageInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
VK_VERIFY(vkCreateImage(device, &imageInfo, nullptr, &m_depthStencilImages[i]), "vkCreateImage(depth)");
VkMemoryRequirements memRequirements{};
vkGetImageMemoryRequirements(device, m_depthStencilImages[i], &memRequirements);
VkMemoryAllocateInfo allocInfo{};
allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
allocInfo.allocationSize = memRequirements.size;
allocInfo.memoryTypeIndex =
FindMemoryType(physicalDevice, memRequirements.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
VK_VERIFY(vkAllocateMemory(device, &allocInfo, nullptr, &m_depthStencilImageMemories[i]),
"vkAllocateMemory(depth)");
VK_VERIFY(vkBindImageMemory(device, m_depthStencilImages[i], m_depthStencilImageMemories[i], 0),
"vkBindImageMemory(depth)");
VkImageViewCreateInfo viewInfo{};
viewInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
viewInfo.image = m_depthStencilImages[i];
viewInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
viewInfo.format = m_depthStencilFormat;
viewInfo.subresourceRange.aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT;
if (HasStencilComponent(m_depthStencilFormat)) {
viewInfo.subresourceRange.aspectMask |= VK_IMAGE_ASPECT_STENCIL_BIT;
}
viewInfo.subresourceRange.baseMipLevel = 0;
viewInfo.subresourceRange.levelCount = 1;
viewInfo.subresourceRange.baseArrayLayer = 0;
viewInfo.subresourceRange.layerCount = 1;
VK_VERIFY(vkCreateImageView(device, &viewInfo, nullptr, &m_depthStencilImageViews[i]),
"vkCreateImageView(depth)");
}
}
void SwapchainObject::DestroyDepthStencilResources(VkDevice device) {
for (auto view : m_depthStencilImageViews) {
if (view != VK_NULL_HANDLE) {
vkDestroyImageView(device, view, nullptr);
}
}
m_depthStencilImageViews.clear();
for (auto image : m_depthStencilImages) {
if (image != VK_NULL_HANDLE) {
vkDestroyImage(device, image, nullptr);
}
}
m_depthStencilImages.clear();
for (auto memory : m_depthStencilImageMemories) {
if (memory != VK_NULL_HANDLE) {
vkFreeMemory(device, memory, nullptr);
}
}
m_depthStencilImageMemories.clear();
m_depthStencilImageLayouts.clear();
m_depthStencilFormat = VK_FORMAT_UNDEFINED;
}
void SwapchainObject::Shutdown(VkDevice device) {
DestroyDepthStencilResources(device);
for (auto imageView : m_imageViews) {
vkDestroyImageView(device, imageView, nullptr);
}
m_imageViews.clear();
if (m_swapchain != VK_NULL_HANDLE) {
vkDestroySwapchainKHR(device, m_swapchain, nullptr);
m_swapchain = VK_NULL_HANDLE;
}
m_images.clear();
m_imageLayouts.clear();
m_imageContentDefined.clear();
m_depthStencilContentDefined.clear();
m_preTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
}
Bool SwapchainObject::IsImageContentDefined(Uint32 index) const {
MOBILEGL_ASSERT(index < m_imageContentDefined.size(), "Swapchain image content index out of range");
return m_imageContentDefined[index];
}
void SwapchainObject::SetImageContentDefined(Uint32 index, Bool defined) {
MOBILEGL_ASSERT(index < m_imageContentDefined.size(), "Swapchain image content index out of range");
m_imageContentDefined[index] = defined;
}
Bool SwapchainObject::IsDepthStencilContentDefined(Uint32 index) const {
MOBILEGL_ASSERT(index < m_depthStencilContentDefined.size(),
"Swapchain depth/stencil content index out of range");
return m_depthStencilContentDefined[index];
}
void SwapchainObject::SetDepthStencilContentDefined(Uint32 index, Bool defined) {
MOBILEGL_ASSERT(index < m_depthStencilContentDefined.size(),
"Swapchain depth/stencil content index out of range");
m_depthStencilContentDefined[index] = defined;
}
void SwapchainObject::SetAllDepthStencilContentUndefined() {
for (SizeT i = 0; i < m_depthStencilContentDefined.size(); ++i) {
m_depthStencilContentDefined[i] = false;
}
}
VkImage SwapchainObject::GetImage(Uint32 index) const {
MOBILEGL_ASSERT(index < m_images.size(), "Swapchain image index out of range");
return m_images[index];
}
VkImageLayout SwapchainObject::GetImageLayout(Uint32 index) const {
MOBILEGL_ASSERT(index < m_imageLayouts.size(), "Swapchain image layout index out of range");
return m_imageLayouts[index];
}
void SwapchainObject::SetImageLayout(Uint32 index, VkImageLayout layout) {
MOBILEGL_ASSERT(index < m_imageLayouts.size(), "Swapchain image layout index out of range");
m_imageLayouts[index] = layout;
}
VkImage SwapchainObject::GetDepthStencilImage(Uint32 index) const {
MOBILEGL_ASSERT(index < m_depthStencilImages.size(), "Swapchain depth/stencil image index out of range");
return m_depthStencilImages[index];
}
VkImageView SwapchainObject::GetDepthStencilImageView(Uint32 index) const {
MOBILEGL_ASSERT(index < m_depthStencilImageViews.size(),
"Swapchain depth/stencil image view index out of range");
return m_depthStencilImageViews[index];
}
VkImageLayout SwapchainObject::GetDepthStencilImageLayout(Uint32 index) const {
MOBILEGL_ASSERT(index < m_depthStencilImageLayouts.size(),
"Swapchain depth/stencil image layout index out of range");
return m_depthStencilImageLayouts[index];
}
void SwapchainObject::SetDepthStencilImageLayout(Uint32 index, VkImageLayout layout) {
MOBILEGL_ASSERT(index < m_depthStencilImageLayouts.size(),
"Swapchain depth/stencil image layout index out of range");
m_depthStencilImageLayouts[index] = layout;
}
void SwapchainObject::CreateImageViews(VkDevice device) {
m_imageViews.resize(m_images.size(), VK_NULL_HANDLE);
for (SizeT i = 0; i < m_imageViews.size(); i++) {
VkImageViewCreateInfo createInfo{};
createInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
createInfo.image = m_images[i];
createInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
createInfo.format = m_surfaceFormat.format;
createInfo.components.r = VK_COMPONENT_SWIZZLE_IDENTITY;
createInfo.components.g = VK_COMPONENT_SWIZZLE_IDENTITY;
createInfo.components.b = VK_COMPONENT_SWIZZLE_IDENTITY;
createInfo.components.a = VK_COMPONENT_SWIZZLE_IDENTITY;
createInfo.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
createInfo.subresourceRange.baseMipLevel = 0;
createInfo.subresourceRange.levelCount = 1;
createInfo.subresourceRange.baseArrayLayer = 0;
createInfo.subresourceRange.layerCount = 1;
VK_VERIFY(vkCreateImageView(device, &createInfo, nullptr, &m_imageViews[i]));
}
MGLOG_I("Swapchain image views created");
}
#undef VK_VERIFY
} // namespace MobileGL::MG_Backend::DirectVulkan