From b392a5986ea305d805d259e414f8fb5ecc0f80b4 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Mon, 6 Jan 2020 21:18:38 -0300
Subject: vk_pipeline_cache: Add file and define descriptor update template
 filler

This function allows us to share code between compute and graphics
pipelines compilation.
---
 .../renderer_vulkan/vk_pipeline_cache.cpp          | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 src/video_core/renderer_vulkan/vk_pipeline_cache.cpp

(limited to 'src/video_core/renderer_vulkan/vk_pipeline_cache.cpp')

diff --git a/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
new file mode 100644
index 000000000..9bc027cbf
--- /dev/null
+++ b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
@@ -0,0 +1,43 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <cstddef>
+#include <vector>
+
+#include "video_core/renderer_vulkan/declarations.h"
+#include "video_core/renderer_vulkan/vk_device.h"
+#include "video_core/renderer_vulkan/vk_pipeline_cache.h"
+#include "video_core/renderer_vulkan/vk_update_descriptor.h"
+
+namespace Vulkan {
+
+void FillDescriptorUpdateTemplateEntries(
+    const VKDevice& device, const ShaderEntries& entries, u32& binding, u32& offset,
+    std::vector<vk::DescriptorUpdateTemplateEntry>& template_entries) {
+    static constexpr auto entry_size = static_cast<u32>(sizeof(DescriptorUpdateEntry));
+    const auto AddEntry = [&](vk::DescriptorType descriptor_type, std::size_t count_) {
+        const u32 count = static_cast<u32>(count_);
+        if (descriptor_type == vk::DescriptorType::eUniformTexelBuffer &&
+            device.GetDriverID() == vk::DriverIdKHR::eNvidiaProprietary) {
+            // Nvidia has a bug where updating multiple uniform texels at once causes the driver to
+            // crash.
+            for (u32 i = 0; i < count; ++i) {
+                template_entries.emplace_back(binding + i, 0, 1, descriptor_type,
+                                              offset + i * entry_size, entry_size);
+            }
+        } else if (count != 0) {
+            template_entries.emplace_back(binding, 0, count, descriptor_type, offset, entry_size);
+        }
+        offset += count * entry_size;
+        binding += count;
+    };
+
+    AddEntry(vk::DescriptorType::eUniformBuffer, entries.const_buffers.size());
+    AddEntry(vk::DescriptorType::eStorageBuffer, entries.global_buffers.size());
+    AddEntry(vk::DescriptorType::eUniformTexelBuffer, entries.texel_buffers.size());
+    AddEntry(vk::DescriptorType::eCombinedImageSampler, entries.samplers.size());
+    AddEntry(vk::DescriptorType::eStorageImage, entries.images.size());
+}
+
+} // namespace Vulkan
-- 
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