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VulkanRenderer: Implement CommandBufferBuilder::BuildMipmaps

This commit is contained in:
SirLynix 2023-07-14 14:25:08 +02:00
parent 6308553886
commit 5e4c175395
1 changed files with 47 additions and 2 deletions
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49
src/Nazara/VulkanRenderer/VulkanCommandBufferBuilder.cpp
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@ -181,9 +181,54 @@ namespace Nz
void VulkanCommandBufferBuilder::BuildMipmaps(Texture& texture, UInt8 baseLevel, UInt8 maxLevel)
{
VulkanTexture& vkTexture = static_cast<VulkanTexture&>(texture);
NazaraAssert(maxLevel >= baseLevel, "maxLevel must be greater than baseLevel");
// TODO
VulkanTexture& vkTexture = static_cast<VulkanTexture&>(texture);
VkImage vkImage = vkTexture.GetImage();
const TextureInfo& textureInfo = vkTexture.GetTextureInfo();
Vector3i32 mipSize(SafeCast<Int32>(textureInfo.width), SafeCast<Int32>(textureInfo.height), SafeCast<Int32>(textureInfo.depth));
Vector3i32 prevMipSize = mipSize;
std::size_t levelCount = maxLevel - baseLevel + 1;
if (baseLevel != 0)
{
mipSize.x >>= baseLevel;
mipSize.y >>= baseLevel;
mipSize.z >>= baseLevel;
mipSize.Maximize({ 1, 1, 1 });
}
for (std::size_t i = 0; i < levelCount; ++i)
{
mipSize /= 2;
mipSize.Maximize({ 1, 1, 1 });
VkImageBlit blitRegion = {
vkTexture.BuildSubresourceLayers(i - 1),
{ //< srcOffsets
{ 0, 0, 0 },
{ prevMipSize.x, prevMipSize.y, prevMipSize.z }
},
vkTexture.BuildSubresourceLayers(i),
{ //< dstOffsets
{ 0, 0, 0 },
{ mipSize.x, mipSize.y, mipSize.z }
},
};
VkImageSubresourceRange prevMipmapRange = vkTexture.BuildSubresourceRange(i - 1, 1, 0, textureInfo.layerCount);
m_commandBuffer.SetImageLayout(vkImage, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, prevMipmapRange);
m_commandBuffer.BlitImage(vkImage, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, vkImage, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, blitRegion, VK_FILTER_LINEAR);
m_commandBuffer.SetImageLayout(vkImage, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, prevMipmapRange);
prevMipSize = mipSize;
}
}
void VulkanCommandBufferBuilder::CopyBuffer(const RenderBufferView& source, const RenderBufferView& target, UInt64 size, UInt64 sourceOffset, UInt64 targetOffset)