From 82a64da0777cc48a992b10fee7db472e207f2423 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Wed, 8 Jan 2020 19:22:20 -0300
Subject: vk_shader_util: Add helper to build SPIR-V shaders

---
 src/video_core/CMakeLists.txt                     |  2 ++
 src/video_core/renderer_vulkan/vk_shader_util.cpp | 34 +++++++++++++++++++++++
 src/video_core/renderer_vulkan/vk_shader_util.h   | 17 ++++++++++++
 3 files changed, 53 insertions(+)
 create mode 100644 src/video_core/renderer_vulkan/vk_shader_util.cpp
 create mode 100644 src/video_core/renderer_vulkan/vk_shader_util.h

(limited to 'src')

diff --git a/src/video_core/CMakeLists.txt b/src/video_core/CMakeLists.txt
index caf03c2ae..abe736c76 100644
--- a/src/video_core/CMakeLists.txt
+++ b/src/video_core/CMakeLists.txt
@@ -180,6 +180,8 @@ if (ENABLE_VULKAN)
         renderer_vulkan/vk_scheduler.h
         renderer_vulkan/vk_shader_decompiler.cpp
         renderer_vulkan/vk_shader_decompiler.h
+        renderer_vulkan/vk_shader_util.cpp
+        renderer_vulkan/vk_shader_util.h
         renderer_vulkan/vk_staging_buffer_pool.cpp
         renderer_vulkan/vk_staging_buffer_pool.h
         renderer_vulkan/vk_stream_buffer.cpp
diff --git a/src/video_core/renderer_vulkan/vk_shader_util.cpp b/src/video_core/renderer_vulkan/vk_shader_util.cpp
new file mode 100644
index 000000000..b97c4cb3d
--- /dev/null
+++ b/src/video_core/renderer_vulkan/vk_shader_util.cpp
@@ -0,0 +1,34 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <cstring>
+#include <memory>
+#include <vector>
+#include "common/alignment.h"
+#include "common/assert.h"
+#include "common/common_types.h"
+#include "video_core/renderer_vulkan/declarations.h"
+#include "video_core/renderer_vulkan/vk_device.h"
+#include "video_core/renderer_vulkan/vk_shader_util.h"
+
+namespace Vulkan {
+
+UniqueShaderModule BuildShader(const VKDevice& device, std::size_t code_size, const u8* code_data) {
+    // Avoid undefined behavior by copying to a staging allocation
+    ASSERT(code_size % sizeof(u32) == 0);
+    const auto data = std::make_unique<u32[]>(code_size / sizeof(u32));
+    std::memcpy(data.get(), code_data, code_size);
+
+    const auto dev = device.GetLogical();
+    const auto& dld = device.GetDispatchLoader();
+    const vk::ShaderModuleCreateInfo shader_ci({}, code_size, data.get());
+    vk::ShaderModule shader_module;
+    if (dev.createShaderModule(&shader_ci, nullptr, &shader_module, dld) != vk::Result::eSuccess) {
+        UNREACHABLE_MSG("Shader module failed to build!");
+    }
+
+    return UniqueShaderModule(shader_module, vk::ObjectDestroy(dev, nullptr, dld));
+}
+
+} // namespace Vulkan
diff --git a/src/video_core/renderer_vulkan/vk_shader_util.h b/src/video_core/renderer_vulkan/vk_shader_util.h
new file mode 100644
index 000000000..c06d65970
--- /dev/null
+++ b/src/video_core/renderer_vulkan/vk_shader_util.h
@@ -0,0 +1,17 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <vector>
+#include "common/common_types.h"
+#include "video_core/renderer_vulkan/declarations.h"
+
+namespace Vulkan {
+
+class VKDevice;
+
+UniqueShaderModule BuildShader(const VKDevice& device, std::size_t code_size, const u8* code_data);
+
+} // namespace Vulkan
-- 
cgit v1.2.3