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// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <unordered_map>
#include <boost/container/static_vector.hpp>
#include "video_core/renderer_vulkan/maxwell_to_vk.h"
#include "video_core/renderer_vulkan/vk_render_pass_cache.h"
#include "video_core/surface.h"
#include "video_core/vulkan_common/vulkan_device.h"
#include "video_core/vulkan_common/vulkan_wrapper.h"
namespace Vulkan {
namespace {
using VideoCore::Surface::PixelFormat;
constexpr std::array ATTACHMENT_REFERENCES{
VkAttachmentReference{0, VK_IMAGE_LAYOUT_GENERAL},
VkAttachmentReference{1, VK_IMAGE_LAYOUT_GENERAL},
VkAttachmentReference{2, VK_IMAGE_LAYOUT_GENERAL},
VkAttachmentReference{3, VK_IMAGE_LAYOUT_GENERAL},
VkAttachmentReference{4, VK_IMAGE_LAYOUT_GENERAL},
VkAttachmentReference{5, VK_IMAGE_LAYOUT_GENERAL},
VkAttachmentReference{6, VK_IMAGE_LAYOUT_GENERAL},
VkAttachmentReference{7, VK_IMAGE_LAYOUT_GENERAL},
VkAttachmentReference{8, VK_IMAGE_LAYOUT_GENERAL},
};
VkAttachmentDescription AttachmentDescription(const Device& device, PixelFormat format,
VkSampleCountFlagBits samples) {
using MaxwellToVK::SurfaceFormat;
return {
.flags = VK_ATTACHMENT_DESCRIPTION_MAY_ALIAS_BIT,
.format = SurfaceFormat(device, FormatType::Optimal, true, format).format,
.samples = samples,
.loadOp = VK_ATTACHMENT_LOAD_OP_LOAD,
.storeOp = VK_ATTACHMENT_STORE_OP_STORE,
.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_LOAD,
.stencilStoreOp = VK_ATTACHMENT_STORE_OP_STORE,
.initialLayout = VK_IMAGE_LAYOUT_GENERAL,
.finalLayout = VK_IMAGE_LAYOUT_GENERAL,
};
}
} // Anonymous namespace
RenderPassCache::RenderPassCache(const Device& device_) : device{&device_} {}
VkRenderPass RenderPassCache::Get(const RenderPassKey& key) {
std::lock_guard lock{mutex};
const auto [pair, is_new] = cache.try_emplace(key);
if (!is_new) {
return *pair->second;
}
boost::container::static_vector<VkAttachmentDescription, 9> descriptions;
for (size_t index = 0; index < key.color_formats.size(); ++index) {
const PixelFormat format{key.color_formats[index]};
if (format == PixelFormat::Invalid) {
continue;
}
descriptions.push_back(AttachmentDescription(*device, format, key.samples));
}
const size_t num_colors{descriptions.size()};
const VkAttachmentReference* depth_attachment{};
if (key.depth_format != PixelFormat::Invalid) {
depth_attachment = &ATTACHMENT_REFERENCES[num_colors];
descriptions.push_back(AttachmentDescription(*device, key.depth_format, key.samples));
}
const VkSubpassDescription subpass{
.flags = 0,
.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS,
.inputAttachmentCount = 0,
.pInputAttachments = nullptr,
.colorAttachmentCount = static_cast<u32>(num_colors),
.pColorAttachments = num_colors != 0 ? ATTACHMENT_REFERENCES.data() : nullptr,
.pResolveAttachments = nullptr,
.pDepthStencilAttachment = depth_attachment,
.preserveAttachmentCount = 0,
.pPreserveAttachments = nullptr,
};
pair->second = device->GetLogical().CreateRenderPass({
.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,
.pNext = nullptr,
.flags = 0,
.attachmentCount = static_cast<u32>(descriptions.size()),
.pAttachments = descriptions.empty() ? nullptr : descriptions.data(),
.subpassCount = 1,
.pSubpasses = &subpass,
.dependencyCount = 0,
.pDependencies = nullptr,
});
return *pair->second;
}
} // namespace Vulkan
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