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[Feat] (MG_Backend/DirectVulkan): inital FBO implementation, and blit framebuffer

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swung0x48
2026-02-17 19:39:10 +08:00
parent 49a18f68e1
commit e132e9edc1
10 changed files with 717 additions and 38 deletions
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MobileGL/MG_Backend/DirectVulkan/Renderer/SwapchainObject.cpp
+14 -1
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@@ -128,7 +128,20 @@ namespace MobileGL::MG_Backend::DirectVulkan {
createInfo.imageColorSpace = pickedSurfaceFormat.colorSpace;
createInfo.imageExtent = swapchainCaps.currentExtent;
createInfo.imageArrayLayers = 1;
createInfo.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
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;