Merge pull request #6941 from ameerj/swapchain-srgb

vk_swapchain: Prefer linear swapchain format when presenting sRGB images
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Fernando S 2021-09-11 22:36:03 +02:00 committed by GitHub
commit ec6490f5ad
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5 changed files with 37 additions and 11 deletions

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@ -358,7 +358,7 @@ void VKBlitScreen::CreateDescriptorPool() {
void VKBlitScreen::CreateRenderPass() {
const VkAttachmentDescription color_attachment{
.flags = 0,
.format = swapchain.GetImageFormat(),
.format = swapchain.GetImageViewFormat(),
.samples = VK_SAMPLE_COUNT_1_BIT,
.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR,
.storeOp = VK_ATTACHMENT_STORE_OP_STORE,

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@ -20,16 +20,15 @@ namespace Vulkan {
namespace {
VkSurfaceFormatKHR ChooseSwapSurfaceFormat(vk::Span<VkSurfaceFormatKHR> formats, bool srgb) {
VkSurfaceFormatKHR ChooseSwapSurfaceFormat(vk::Span<VkSurfaceFormatKHR> formats) {
if (formats.size() == 1 && formats[0].format == VK_FORMAT_UNDEFINED) {
VkSurfaceFormatKHR format;
format.format = VK_FORMAT_B8G8R8A8_UNORM;
format.colorSpace = VK_COLOR_SPACE_SRGB_NONLINEAR_KHR;
return format;
}
const auto& found = std::find_if(formats.begin(), formats.end(), [srgb](const auto& format) {
const auto request_format = srgb ? VK_FORMAT_B8G8R8A8_SRGB : VK_FORMAT_B8G8R8A8_UNORM;
return format.format == request_format &&
const auto& found = std::find_if(formats.begin(), formats.end(), [](const auto& format) {
return format.format == VK_FORMAT_B8G8R8A8_UNORM &&
format.colorSpace == VK_COLOR_SPACE_SRGB_NONLINEAR_KHR;
});
return found != formats.end() ? *found : formats[0];
@ -143,7 +142,7 @@ void VKSwapchain::CreateSwapchain(const VkSurfaceCapabilitiesKHR& capabilities,
const auto formats{physical_device.GetSurfaceFormatsKHR(surface)};
const auto present_modes{physical_device.GetSurfacePresentModesKHR(surface)};
const VkSurfaceFormatKHR surface_format{ChooseSwapSurfaceFormat(formats, srgb)};
const VkSurfaceFormatKHR surface_format{ChooseSwapSurfaceFormat(formats)};
const VkPresentModeKHR present_mode{ChooseSwapPresentMode(present_modes)};
u32 requested_image_count{capabilities.minImageCount + 1};
@ -178,6 +177,17 @@ void VKSwapchain::CreateSwapchain(const VkSurfaceCapabilitiesKHR& capabilities,
swapchain_ci.queueFamilyIndexCount = static_cast<u32>(queue_indices.size());
swapchain_ci.pQueueFamilyIndices = queue_indices.data();
}
static constexpr std::array view_formats{VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_B8G8R8A8_SRGB};
VkImageFormatListCreateInfo format_list{
.sType = VK_STRUCTURE_TYPE_IMAGE_FORMAT_LIST_CREATE_INFO_KHR,
.pNext = nullptr,
.viewFormatCount = static_cast<u32>(view_formats.size()),
.pViewFormats = view_formats.data(),
};
if (device.IsKhrSwapchainMutableFormatEnabled()) {
format_list.pNext = std::exchange(swapchain_ci.pNext, &format_list);
swapchain_ci.flags |= VK_SWAPCHAIN_CREATE_MUTABLE_FORMAT_BIT_KHR;
}
// Request the size again to reduce the possibility of a TOCTOU race condition.
const auto updated_capabilities = physical_device.GetSurfaceCapabilitiesKHR(surface);
swapchain_ci.imageExtent = ChooseSwapExtent(updated_capabilities, width, height);
@ -189,7 +199,7 @@ void VKSwapchain::CreateSwapchain(const VkSurfaceCapabilitiesKHR& capabilities,
images = swapchain.GetImages();
image_count = static_cast<u32>(images.size());
image_format = surface_format.format;
image_view_format = srgb ? VK_FORMAT_B8G8R8A8_SRGB : VK_FORMAT_B8G8R8A8_UNORM;
}
void VKSwapchain::CreateSemaphores() {
@ -205,7 +215,7 @@ void VKSwapchain::CreateImageViews() {
.flags = 0,
.image = {},
.viewType = VK_IMAGE_VIEW_TYPE_2D,
.format = image_format,
.format = image_view_format,
.components =
{
.r = VK_COMPONENT_SWIZZLE_IDENTITY,

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@ -68,8 +68,8 @@ public:
return *image_views[index];
}
VkFormat GetImageFormat() const {
return image_format;
VkFormat GetImageViewFormat() const {
return image_view_format;
}
VkSemaphore CurrentPresentSemaphore() const {
@ -100,7 +100,7 @@ private:
u32 image_index{};
u32 frame_index{};
VkFormat image_format{};
VkFormat image_view_format{};
VkExtent2D extent{};
bool current_srgb{};

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@ -839,6 +839,8 @@ std::vector<const char*> Device::LoadExtensions(bool requires_surface) {
bool has_khr_shader_float16_int8{};
bool has_khr_workgroup_memory_explicit_layout{};
bool has_khr_pipeline_executable_properties{};
bool has_khr_image_format_list{};
bool has_khr_swapchain_mutable_format{};
bool has_ext_subgroup_size_control{};
bool has_ext_transform_feedback{};
bool has_ext_custom_border_color{};
@ -888,6 +890,9 @@ std::vector<const char*> Device::LoadExtensions(bool requires_surface) {
test(has_ext_shader_atomic_int64, VK_KHR_SHADER_ATOMIC_INT64_EXTENSION_NAME, false);
test(has_khr_workgroup_memory_explicit_layout,
VK_KHR_WORKGROUP_MEMORY_EXPLICIT_LAYOUT_EXTENSION_NAME, false);
test(has_khr_image_format_list, VK_KHR_IMAGE_FORMAT_LIST_EXTENSION_NAME, false);
test(has_khr_swapchain_mutable_format, VK_KHR_SWAPCHAIN_MUTABLE_FORMAT_EXTENSION_NAME,
false);
test(has_ext_line_rasterization, VK_EXT_LINE_RASTERIZATION_EXTENSION_NAME, false);
if (Settings::values.enable_nsight_aftermath) {
test(nv_device_diagnostics_config, VK_NV_DEVICE_DIAGNOSTICS_CONFIG_EXTENSION_NAME,
@ -1066,6 +1071,11 @@ std::vector<const char*> Device::LoadExtensions(bool requires_surface) {
khr_pipeline_executable_properties = true;
}
}
if (has_khr_image_format_list && has_khr_swapchain_mutable_format) {
extensions.push_back(VK_KHR_IMAGE_FORMAT_LIST_EXTENSION_NAME);
extensions.push_back(VK_KHR_SWAPCHAIN_MUTABLE_FORMAT_EXTENSION_NAME);
khr_swapchain_mutable_format = true;
}
if (khr_push_descriptor) {
VkPhysicalDevicePushDescriptorPropertiesKHR push_descriptor;
push_descriptor.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PUSH_DESCRIPTOR_PROPERTIES_KHR;

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@ -224,6 +224,11 @@ public:
return khr_pipeline_executable_properties;
}
/// Returns true if VK_KHR_swapchain_mutable_format is enabled.
bool IsKhrSwapchainMutableFormatEnabled() const {
return khr_swapchain_mutable_format;
}
/// Returns true if the device supports VK_KHR_workgroup_memory_explicit_layout.
bool IsKhrWorkgroupMemoryExplicitLayoutSupported() const {
return khr_workgroup_memory_explicit_layout;
@ -390,6 +395,7 @@ private:
bool khr_workgroup_memory_explicit_layout{}; ///< Support for explicit workgroup layouts.
bool khr_push_descriptor{}; ///< Support for VK_KHR_push_descritor.
bool khr_pipeline_executable_properties{}; ///< Support for executable properties.
bool khr_swapchain_mutable_format{}; ///< Support for VK_KHR_swapchain_mutable_format.
bool ext_index_type_uint8{}; ///< Support for VK_EXT_index_type_uint8.
bool ext_sampler_filter_minmax{}; ///< Support for VK_EXT_sampler_filter_minmax.
bool ext_depth_range_unrestricted{}; ///< Support for VK_EXT_depth_range_unrestricted.