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Render to offscreen image and window resizing

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Signed-off-by: Slendi <slendi@socopon.com>
This commit is contained in:
Slendi
2025-12-02 21:26:53 +02:00
parent 08cb595ed2
commit 94eb26d9bc
8 changed files with 321 additions and 34 deletions
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92
src/Util.cpp
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@@ -2,8 +2,8 @@
namespace vkutil {
void transition_image(VkCommandBuffer cmd, VkImage image,
VkImageLayout current_layout, VkImageLayout new_layout)
auto transition_image(VkCommandBuffer cmd, VkImage image,
VkImageLayout current_layout, VkImageLayout new_layout) -> void
{
VkImageAspectFlags aspect_mask
= (new_layout == VK_IMAGE_LAYOUT_DEPTH_ATTACHMENT_OPTIMAL)
@@ -31,10 +31,94 @@ void transition_image(VkCommandBuffer cmd, VkImage image,
},
};
vkCmdPipelineBarrier(cmd,
VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
vkCmdPipelineBarrier(cmd, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, 0, 0, nullptr, 0, nullptr, 1,
&image_barrier);
}
auto copy_image_to_image(VkCommandBuffer cmd, VkImage source,
VkImage destination, VkExtent2D src_size, VkExtent2D dst_size) -> void
{
VkImageBlit2 blit_region {};
blit_region.sType = VK_STRUCTURE_TYPE_IMAGE_BLIT_2;
blit_region.pNext = nullptr;
blit_region.srcOffsets[0] = { 0, 0, 0 };
blit_region.srcOffsets[1] = { static_cast<int32_t>(src_size.width),
static_cast<int32_t>(src_size.height), 1 };
blit_region.dstOffsets[0] = { 0, 0, 0 };
blit_region.dstOffsets[1] = { static_cast<int32_t>(dst_size.width),
static_cast<int32_t>(dst_size.height), 1 };
blit_region.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
blit_region.srcSubresource.baseArrayLayer = 0;
blit_region.srcSubresource.layerCount = 1;
blit_region.srcSubresource.mipLevel = 0;
blit_region.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
blit_region.dstSubresource.baseArrayLayer = 0;
blit_region.dstSubresource.layerCount = 1;
blit_region.dstSubresource.mipLevel = 0;
VkBlitImageInfo2 blit_info {};
blit_info.sType = VK_STRUCTURE_TYPE_BLIT_IMAGE_INFO_2;
blit_info.pNext = nullptr;
blit_info.dstImage = destination;
blit_info.dstImageLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
blit_info.srcImage = source;
blit_info.srcImageLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL;
blit_info.filter = VK_FILTER_LINEAR;
blit_info.regionCount = 1;
blit_info.pRegions = &blit_region;
vkCmdBlitImage2(cmd, &blit_info);
}
} // namespace vkutil
namespace vkinit {
auto image_create_info(VkFormat format, VkImageUsageFlags usage_flags,
VkExtent3D extent) -> VkImageCreateInfo
{
VkImageCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
info.pNext = nullptr;
info.imageType = VK_IMAGE_TYPE_2D;
info.format = format;
info.extent = extent;
info.mipLevels = 1;
info.arrayLayers = 1;
info.samples = VK_SAMPLE_COUNT_1_BIT;
info.tiling = VK_IMAGE_TILING_OPTIMAL;
info.usage = usage_flags;
return info;
}
auto imageview_create_info(VkFormat format, VkImage image,
VkImageAspectFlags aspect_flags) -> VkImageViewCreateInfo
{
VkImageViewCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
info.pNext = nullptr;
info.viewType = VK_IMAGE_VIEW_TYPE_2D;
info.image = image;
info.format = format;
info.subresourceRange.baseMipLevel = 0;
info.subresourceRange.levelCount = 1;
info.subresourceRange.baseArrayLayer = 0;
info.subresourceRange.layerCount = 1;
info.subresourceRange.aspectMask = aspect_flags;
return info;
}
} // namespace vkinit