forked from suyu/suyu
5aeff9aff5
The renderpass cache is used to avoid creating renderpasses on each draw. The hashed structure is not currently optimized.
100 lines
4.6 KiB
C++
100 lines
4.6 KiB
C++
// Copyright 2019 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <memory>
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#include <vector>
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#include "video_core/engines/maxwell_3d.h"
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#include "video_core/renderer_vulkan/declarations.h"
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#include "video_core/renderer_vulkan/maxwell_to_vk.h"
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#include "video_core/renderer_vulkan/vk_device.h"
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#include "video_core/renderer_vulkan/vk_renderpass_cache.h"
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namespace Vulkan {
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VKRenderPassCache::VKRenderPassCache(const VKDevice& device) : device{device} {}
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VKRenderPassCache::~VKRenderPassCache() = default;
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vk::RenderPass VKRenderPassCache::GetRenderPass(const RenderPassParams& params) {
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const auto [pair, is_cache_miss] = cache.try_emplace(params);
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auto& entry = pair->second;
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if (is_cache_miss) {
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entry = CreateRenderPass(params);
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}
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return *entry;
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}
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UniqueRenderPass VKRenderPassCache::CreateRenderPass(const RenderPassParams& params) const {
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std::vector<vk::AttachmentDescription> descriptors;
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std::vector<vk::AttachmentReference> color_references;
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for (std::size_t rt = 0; rt < params.color_attachments.size(); ++rt) {
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const auto attachment = params.color_attachments[rt];
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const auto format =
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MaxwellToVK::SurfaceFormat(device, FormatType::Optimal, attachment.pixel_format);
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ASSERT_MSG(format.attachable, "Trying to attach a non-attachable format with format={}",
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static_cast<u32>(attachment.pixel_format));
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// TODO(Rodrigo): Add eMayAlias when it's needed.
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const auto color_layout = attachment.is_texception
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? vk::ImageLayout::eGeneral
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: vk::ImageLayout::eColorAttachmentOptimal;
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descriptors.emplace_back(vk::AttachmentDescriptionFlagBits::eMayAlias, format.format,
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vk::SampleCountFlagBits::e1, vk::AttachmentLoadOp::eLoad,
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vk::AttachmentStoreOp::eStore, vk::AttachmentLoadOp::eDontCare,
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vk::AttachmentStoreOp::eDontCare, color_layout, color_layout);
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color_references.emplace_back(static_cast<u32>(rt), color_layout);
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}
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vk::AttachmentReference zeta_attachment_ref;
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if (params.has_zeta) {
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const auto format =
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MaxwellToVK::SurfaceFormat(device, FormatType::Optimal, params.zeta_pixel_format);
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ASSERT_MSG(format.attachable, "Trying to attach a non-attachable format with format={}",
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static_cast<u32>(params.zeta_pixel_format));
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const auto zeta_layout = params.zeta_texception
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? vk::ImageLayout::eGeneral
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: vk::ImageLayout::eDepthStencilAttachmentOptimal;
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descriptors.emplace_back(vk::AttachmentDescriptionFlags{}, format.format,
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vk::SampleCountFlagBits::e1, vk::AttachmentLoadOp::eLoad,
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vk::AttachmentStoreOp::eStore, vk::AttachmentLoadOp::eLoad,
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vk::AttachmentStoreOp::eStore, zeta_layout, zeta_layout);
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zeta_attachment_ref =
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vk::AttachmentReference(static_cast<u32>(params.color_attachments.size()), zeta_layout);
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}
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const vk::SubpassDescription subpass_description(
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{}, vk::PipelineBindPoint::eGraphics, 0, nullptr, static_cast<u32>(color_references.size()),
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color_references.data(), nullptr, params.has_zeta ? &zeta_attachment_ref : nullptr, 0,
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nullptr);
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vk::AccessFlags access;
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vk::PipelineStageFlags stage;
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if (!color_references.empty()) {
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access |=
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vk::AccessFlagBits::eColorAttachmentRead | vk::AccessFlagBits::eColorAttachmentWrite;
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stage |= vk::PipelineStageFlagBits::eColorAttachmentOutput;
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}
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if (params.has_zeta) {
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access |= vk::AccessFlagBits::eDepthStencilAttachmentRead |
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vk::AccessFlagBits::eDepthStencilAttachmentWrite;
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stage |= vk::PipelineStageFlagBits::eLateFragmentTests;
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}
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const vk::SubpassDependency subpass_dependency(VK_SUBPASS_EXTERNAL, 0, stage, stage, {}, access,
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{});
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const vk::RenderPassCreateInfo create_info({}, static_cast<u32>(descriptors.size()),
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descriptors.data(), 1, &subpass_description, 1,
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&subpass_dependency);
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const auto dev = device.GetLogical();
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const auto& dld = device.GetDispatchLoader();
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return dev.createRenderPassUnique(create_info, nullptr, dld);
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}
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} // namespace Vulkan
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