Split render-vk.h/.cpp into a set of smaller files (#2244)

* Some preliminary work on splitting render-vk

* render-vk split, tests currently crash on null reference

* fixed circular include

1 files changed, 77 insertions, 0 deletions

diff --git a/tools/gfx/vulkan/vk-buffer.h b/tools/gfx/vulkan/vk-buffer.h
new file mode 100644
index 000000000..c824f3529
--- /dev/null
+++ b/tools/gfx/vulkan/vk-buffer.h
@@ -0,0 +1,77 @@
+// vk-buffer.h
+#pragma once
+
+#include "vk-base.h"
+#include "vk-device.h"
+
+namespace gfx
+{
+
+using namespace Slang;
+
+namespace vk
+{
+
+class VKBufferHandleRAII
+{
+public:
+    /// Initialize a buffer with specified size, and memory props
+    Result init(
+        const VulkanApi& api,
+        Size bufferSize,
+        VkBufferUsageFlags usage,
+        VkMemoryPropertyFlags reqMemoryProperties,
+        bool isShared = false,
+        VkExternalMemoryHandleTypeFlagsKHR extMemHandleType = 0);
+
+    /// Returns true if has been initialized
+    bool isInitialized() const { return m_api != nullptr; }
+
+    VKBufferHandleRAII()
+        : m_api(nullptr)
+    {}
+
+    ~VKBufferHandleRAII()
+    {
+        if (m_api)
+        {
+            m_api->vkDestroyBuffer(m_api->m_device, m_buffer, nullptr);
+            m_api->vkFreeMemory(m_api->m_device, m_memory, nullptr);
+        }
+    }
+
+    VkBuffer m_buffer;
+    VkDeviceMemory m_memory;
+    const VulkanApi* m_api;
+};
+
+class BufferResourceImpl : public BufferResource
+{
+public:
+    typedef BufferResource Parent;
+
+    BufferResourceImpl(const IBufferResource::Desc& desc, DeviceImpl* renderer);
+
+    ~BufferResourceImpl();
+
+    RefPtr<DeviceImpl> m_renderer;
+    VKBufferHandleRAII m_buffer;
+    VKBufferHandleRAII m_uploadBuffer;
+
+    virtual SLANG_NO_THROW DeviceAddress SLANG_MCALL getDeviceAddress() override;
+
+    virtual SLANG_NO_THROW Result SLANG_MCALL
+        getNativeResourceHandle(InteropHandle* outHandle) override;
+
+    virtual SLANG_NO_THROW Result SLANG_MCALL getSharedHandle(InteropHandle* outHandle) override;
+
+    virtual SLANG_NO_THROW Result SLANG_MCALL
+        map(MemoryRange* rangeToRead, void** outPointer) override;
+
+    virtual SLANG_NO_THROW Result SLANG_MCALL unmap(MemoryRange* writtenRange) override;
+
+    virtual SLANG_NO_THROW Result SLANG_MCALL setDebugName(const char* name) override;
+};
+
+} // namespace vk
+} // namespace gfx