vk_swapchain: Prefer linear swapchain format when presenting sRGB images
Fixes broken sRGB when presenting from a secondary GPU.
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3843995ceb
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3c65c8580f
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@ -356,7 +356,7 @@ void VKBlitScreen::CreateDescriptorPool() {
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void VKBlitScreen::CreateRenderPass() {
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const VkAttachmentDescription color_attachment{
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.flags = 0,
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.format = swapchain.GetImageFormat(),
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.format = swapchain.GetImageViewFormat(),
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.samples = VK_SAMPLE_COUNT_1_BIT,
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.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR,
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.storeOp = VK_ATTACHMENT_STORE_OP_STORE,
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@ -20,16 +20,15 @@ namespace Vulkan {
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namespace {
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VkSurfaceFormatKHR ChooseSwapSurfaceFormat(vk::Span<VkSurfaceFormatKHR> formats, bool srgb) {
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VkSurfaceFormatKHR ChooseSwapSurfaceFormat(vk::Span<VkSurfaceFormatKHR> formats) {
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if (formats.size() == 1 && formats[0].format == VK_FORMAT_UNDEFINED) {
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VkSurfaceFormatKHR format;
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format.format = VK_FORMAT_B8G8R8A8_UNORM;
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format.colorSpace = VK_COLOR_SPACE_SRGB_NONLINEAR_KHR;
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return format;
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}
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const auto& found = std::find_if(formats.begin(), formats.end(), [srgb](const auto& format) {
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const auto request_format = srgb ? VK_FORMAT_B8G8R8A8_SRGB : VK_FORMAT_B8G8R8A8_UNORM;
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return format.format == request_format &&
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const auto& found = std::find_if(formats.begin(), formats.end(), [](const auto& format) {
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return format.format == VK_FORMAT_B8G8R8A8_UNORM &&
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format.colorSpace == VK_COLOR_SPACE_SRGB_NONLINEAR_KHR;
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});
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return found != formats.end() ? *found : formats[0];
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@ -145,7 +144,7 @@ void VKSwapchain::CreateSwapchain(const VkSurfaceCapabilitiesKHR& capabilities,
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const auto formats{physical_device.GetSurfaceFormatsKHR(surface)};
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const auto present_modes{physical_device.GetSurfacePresentModesKHR(surface)};
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const VkSurfaceFormatKHR surface_format{ChooseSwapSurfaceFormat(formats, srgb)};
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const VkSurfaceFormatKHR surface_format{ChooseSwapSurfaceFormat(formats)};
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const VkPresentModeKHR present_mode{ChooseSwapPresentMode(present_modes)};
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u32 requested_image_count{capabilities.minImageCount + 1};
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@ -191,7 +190,7 @@ void VKSwapchain::CreateSwapchain(const VkSurfaceCapabilitiesKHR& capabilities,
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images = swapchain.GetImages();
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image_count = static_cast<u32>(images.size());
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image_format = surface_format.format;
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image_view_format = srgb ? VK_FORMAT_B8G8R8A8_SRGB : VK_FORMAT_B8G8R8A8_UNORM;
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}
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void VKSwapchain::CreateSemaphores() {
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@ -207,7 +206,7 @@ void VKSwapchain::CreateImageViews() {
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.flags = 0,
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.image = {},
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.viewType = VK_IMAGE_VIEW_TYPE_2D,
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.format = image_format,
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.format = image_view_format,
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.components =
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{
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.r = VK_COMPONENT_SWIZZLE_IDENTITY,
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@ -68,8 +68,8 @@ public:
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return *image_views[index];
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}
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VkFormat GetImageFormat() const {
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return image_format;
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VkFormat GetImageViewFormat() const {
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return image_view_format;
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}
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private:
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@ -96,7 +96,7 @@ private:
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u32 image_index{};
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u32 frame_index{};
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VkFormat image_format{};
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VkFormat image_view_format{};
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VkExtent2D extent{};
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bool current_srgb{};
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