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// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <memory>
#include <vector>
#include "video_core/engines/maxwell_3d.h"
#include "video_core/renderer_vulkan/declarations.h"
#include "video_core/renderer_vulkan/maxwell_to_vk.h"
#include "video_core/renderer_vulkan/vk_device.h"
#include "video_core/renderer_vulkan/vk_renderpass_cache.h"
namespace Vulkan {
VKRenderPassCache::VKRenderPassCache(const VKDevice& device) : device{device} {}
VKRenderPassCache::~VKRenderPassCache() = default;
vk::RenderPass VKRenderPassCache::GetRenderPass(const RenderPassParams& params) {
const auto [pair, is_cache_miss] = cache.try_emplace(params);
auto& entry = pair->second;
if (is_cache_miss) {
entry = CreateRenderPass(params);
}
return *entry;
}
UniqueRenderPass VKRenderPassCache::CreateRenderPass(const RenderPassParams& params) const {
std::vector<vk::AttachmentDescription> descriptors;
std::vector<vk::AttachmentReference> color_references;
for (std::size_t rt = 0; rt < params.color_attachments.size(); ++rt) {
const auto attachment = params.color_attachments[rt];
const auto format =
MaxwellToVK::SurfaceFormat(device, FormatType::Optimal, attachment.pixel_format);
ASSERT_MSG(format.attachable, "Trying to attach a non-attachable format with format={}",
static_cast<u32>(attachment.pixel_format));
// TODO(Rodrigo): Add eMayAlias when it's needed.
const auto color_layout = attachment.is_texception
? vk::ImageLayout::eGeneral
: vk::ImageLayout::eColorAttachmentOptimal;
descriptors.emplace_back(vk::AttachmentDescriptionFlagBits::eMayAlias, format.format,
vk::SampleCountFlagBits::e1, vk::AttachmentLoadOp::eLoad,
vk::AttachmentStoreOp::eStore, vk::AttachmentLoadOp::eDontCare,
vk::AttachmentStoreOp::eDontCare, color_layout, color_layout);
color_references.emplace_back(static_cast<u32>(rt), color_layout);
}
vk::AttachmentReference zeta_attachment_ref;
if (params.has_zeta) {
const auto format =
MaxwellToVK::SurfaceFormat(device, FormatType::Optimal, params.zeta_pixel_format);
ASSERT_MSG(format.attachable, "Trying to attach a non-attachable format with format={}",
static_cast<u32>(params.zeta_pixel_format));
const auto zeta_layout = params.zeta_texception
? vk::ImageLayout::eGeneral
: vk::ImageLayout::eDepthStencilAttachmentOptimal;
descriptors.emplace_back(vk::AttachmentDescriptionFlags{}, format.format,
vk::SampleCountFlagBits::e1, vk::AttachmentLoadOp::eLoad,
vk::AttachmentStoreOp::eStore, vk::AttachmentLoadOp::eLoad,
vk::AttachmentStoreOp::eStore, zeta_layout, zeta_layout);
zeta_attachment_ref =
vk::AttachmentReference(static_cast<u32>(params.color_attachments.size()), zeta_layout);
}
const vk::SubpassDescription subpass_description(
{}, vk::PipelineBindPoint::eGraphics, 0, nullptr, static_cast<u32>(color_references.size()),
color_references.data(), nullptr, params.has_zeta ? &zeta_attachment_ref : nullptr, 0,
nullptr);
vk::AccessFlags access;
vk::PipelineStageFlags stage;
if (!color_references.empty()) {
access |=
vk::AccessFlagBits::eColorAttachmentRead | vk::AccessFlagBits::eColorAttachmentWrite;
stage |= vk::PipelineStageFlagBits::eColorAttachmentOutput;
}
if (params.has_zeta) {
access |= vk::AccessFlagBits::eDepthStencilAttachmentRead |
vk::AccessFlagBits::eDepthStencilAttachmentWrite;
stage |= vk::PipelineStageFlagBits::eLateFragmentTests;
}
const vk::SubpassDependency subpass_dependency(VK_SUBPASS_EXTERNAL, 0, stage, stage, {}, access,
{});
const vk::RenderPassCreateInfo create_info({}, static_cast<u32>(descriptors.size()),
descriptors.data(), 1, &subpass_description, 1,
&subpass_dependency);
const auto dev = device.GetLogical();
const auto& dld = device.GetDispatchLoader();
return dev.createRenderPassUnique(create_info, nullptr, dld);
}
} // namespace Vulkan
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