mirror of
https://github.com/ZDoom/Raze.git
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114 lines
3.8 KiB
C++
114 lines
3.8 KiB
C++
/*
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** Vulkan backend
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** Copyright (c) 2016-2020 Magnus Norddahl
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**
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** This software is provided 'as-is', without any express or implied
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** warranty. In no event will the authors be held liable for any damages
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** arising from the use of this software.
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**
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** Permission is granted to anyone to use this software for any purpose,
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** including commercial applications, and to alter it and redistribute it
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** freely, subject to the following restrictions:
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**
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** 1. The origin of this software must not be misrepresented; you must not
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** claim that you wrote the original software. If you use this software
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** in a product, an acknowledgment in the product documentation would be
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** appreciated but is not required.
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** 2. Altered source versions must be plainly marked as such, and must not be
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** misrepresented as being the original software.
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** 3. This notice may not be removed or altered from any source distribution.
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**
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*/
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#include "vk_pptexture.h"
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#include "vk_texture.h"
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#include "vulkan/system/vk_framebuffer.h"
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#include "vulkan/system/vk_commandbuffer.h"
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VkPPTexture::VkPPTexture(VulkanFrameBuffer* fb, PPTexture *texture) : fb(fb)
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{
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VkFormat format;
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int pixelsize;
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switch (texture->Format)
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{
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default:
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case PixelFormat::Rgba8: format = VK_FORMAT_R8G8B8A8_UNORM; pixelsize = 4; break;
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case PixelFormat::Rgba16f: format = VK_FORMAT_R16G16B16A16_SFLOAT; pixelsize = 8; break;
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case PixelFormat::R32f: format = VK_FORMAT_R32_SFLOAT; pixelsize = 4; break;
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case PixelFormat::Rg16f: format = VK_FORMAT_R16G16_SFLOAT; pixelsize = 4; break;
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case PixelFormat::Rgba16_snorm: format = VK_FORMAT_R16G16B16A16_SNORM; pixelsize = 8; break;
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}
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ImageBuilder imgbuilder;
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imgbuilder.Format(format);
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imgbuilder.Size(texture->Width, texture->Height);
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if (texture->Data)
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imgbuilder.Usage(VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT);
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else
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imgbuilder.Usage(VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT);
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imgbuilder.DebugName("VkPPTexture");
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if (!imgbuilder.IsFormatSupported(fb->device))
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I_FatalError("Vulkan device does not support the image format required by a postprocess texture\n");
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TexImage.Image = imgbuilder.Create(fb->device);
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Format = format;
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TexImage.View = ImageViewBuilder()
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.Image(TexImage.Image.get(), format)
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.DebugName("VkPPTextureView")
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.Create(fb->device);
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if (texture->Data)
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{
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size_t totalsize = texture->Width * texture->Height * pixelsize;
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Staging = BufferBuilder()
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.Size(totalsize)
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.Usage(VK_BUFFER_USAGE_TRANSFER_SRC_BIT, VMA_MEMORY_USAGE_CPU_ONLY)
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.DebugName("VkPPTextureStaging")
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.Create(fb->device);
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VkImageTransition()
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.AddImage(&TexImage, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, true)
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.Execute(fb->GetCommands()->GetTransferCommands());
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void *data = Staging->Map(0, totalsize);
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memcpy(data, texture->Data.get(), totalsize);
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Staging->Unmap();
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VkBufferImageCopy region = {};
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region.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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region.imageSubresource.layerCount = 1;
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region.imageExtent.depth = 1;
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region.imageExtent.width = texture->Width;
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region.imageExtent.height = texture->Height;
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fb->GetCommands()->GetTransferCommands()->copyBufferToImage(Staging->buffer, TexImage.Image->image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, ®ion);
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VkImageTransition()
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.AddImage(&TexImage, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, false)
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.Execute(fb->GetCommands()->GetTransferCommands());
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}
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else
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{
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VkImageTransition()
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.AddImage(&TexImage, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL, true)
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.Execute(fb->GetCommands()->GetTransferCommands());
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}
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fb->GetTextureManager()->AddPPTexture(this);
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}
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VkPPTexture::~VkPPTexture()
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{
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if (fb)
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fb->GetTextureManager()->RemovePPTexture(this);
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}
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void VkPPTexture::Reset()
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{
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if (fb)
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{
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TexImage.Reset(fb);
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if (Staging)
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fb->GetCommands()->DrawDeleteList->Add(std::move(Staging));
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}
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}
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