void VkHardwareTexture::CreateTexture(int w, int h, int pixelsize, VkFormat format, const void *pixels)
{
auto fb = GetVulkanFrameBuffer();
int totalSize = w * h * pixelsize;
BufferBuilder bufbuilder;
bufbuilder.setSize(totalSize);
bufbuilder.setUsage(VK_BUFFER_USAGE_TRANSFER_SRC_BIT, VMA_MEMORY_USAGE_CPU_ONLY);
std::unique_ptr<VulkanBuffer> stagingBuffer = bufbuilder.create(fb->device);
stagingBuffer->SetDebugName("VkHardwareTexture.mStagingBuffer");
uint8_t *data = (uint8_t*)stagingBuffer->Map(0, totalSize);
memcpy(data, pixels, totalSize);
stagingBuffer->Unmap();
ImageBuilder imgbuilder;
imgbuilder.setFormat(format);
imgbuilder.setSize(w, h, GetMipLevels(w, h));
imgbuilder.setUsage(VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT);
mImage.Image = imgbuilder.create(fb->device);
mImage.Image->SetDebugName("VkHardwareTexture.mImage");
ImageViewBuilder viewbuilder;
viewbuilder.setImage(mImage.Image.get(), format);
mImage.View = viewbuilder.create(fb->device);
mImage.View->SetDebugName("VkHardwareTexture.mImageView");
auto cmdbuffer = fb->GetTransferCommands();
VkImageTransition imageTransition;
imageTransition.addImage(&mImage, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, true);
imageTransition.execute(cmdbuffer);
VkBufferImageCopy region = {};
region.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
region.imageSubresource.layerCount = 1;
region.imageExtent.depth = 1;
region.imageExtent.width = w;
region.imageExtent.height = h;
cmdbuffer->copyBufferToImage(stagingBuffer->buffer, mImage.Image->image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, ®ion);
fb->FrameDeleteList.Buffers.push_back(std::move(stagingBuffer));
mImage.GenerateMipmaps(cmdbuffer);
}
VkPPTexture::VkPPTexture(PPTexture *texture)
{
auto fb = GetVulkanFrameBuffer();
VkFormat format;
int pixelsize;
switch (texture->Format)
{
default:
case PixelFormat::Rgba8: format = VK_FORMAT_R8G8B8A8_UNORM; pixelsize = 4; break;
case PixelFormat::Rgba16f: format = VK_FORMAT_R16G16B16A16_SFLOAT; pixelsize = 8; break;
case PixelFormat::R32f: format = VK_FORMAT_R32_SFLOAT; pixelsize = 4; break;
case PixelFormat::Rg16f: format = VK_FORMAT_R16G16_SFLOAT; pixelsize = 4; break;
case PixelFormat::Rgba16_snorm: format = VK_FORMAT_R16G16B16A16_SNORM; pixelsize = 8; break;
}
ImageBuilder imgbuilder;
imgbuilder.setFormat(format);
imgbuilder.setSize(texture->Width, texture->Height);
if (texture->Data)
imgbuilder.setUsage(VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT);
else
imgbuilder.setUsage(VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT);
if (!imgbuilder.isFormatSupported(fb->device))
I_FatalError("Vulkan device does not support the image format required by a postprocess texture\n");
TexImage.Image = imgbuilder.create(fb->device);
TexImage.Image->SetDebugName("VkPPTexture");
Format = format;
ImageViewBuilder viewbuilder;
viewbuilder.setImage(TexImage.Image.get(), format);
TexImage.View = viewbuilder.create(fb->device);
TexImage.View->SetDebugName("VkPPTextureView");
if (texture->Data)
{
size_t totalsize = texture->Width * texture->Height * pixelsize;
BufferBuilder stagingbuilder;
stagingbuilder.setSize(totalsize);
stagingbuilder.setUsage(VK_BUFFER_USAGE_TRANSFER_SRC_BIT, VMA_MEMORY_USAGE_CPU_ONLY);
Staging = stagingbuilder.create(fb->device);
Staging->SetDebugName("VkPPTextureStaging");
VkImageTransition barrier0;
barrier0.addImage(&TexImage, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, true);
barrier0.execute(fb->GetTransferCommands());
void *data = Staging->Map(0, totalsize);
memcpy(data, texture->Data.get(), totalsize);
Staging->Unmap();
VkBufferImageCopy region = {};
region.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
region.imageSubresource.layerCount = 1;
region.imageExtent.depth = 1;
region.imageExtent.width = texture->Width;
region.imageExtent.height = texture->Height;
fb->GetTransferCommands()->copyBufferToImage(Staging->buffer, TexImage.Image->image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, ®ion);
VkImageTransition barrier1;
barrier1.addImage(&TexImage, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, false);
barrier1.execute(fb->GetTransferCommands());
}
else
{
VkImageTransition barrier;
barrier.addImage(&TexImage, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, true);
barrier.execute(fb->GetTransferCommands());
}
}