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#pragma once
#include "Unity/IUnityGraphics.h"
#include "RenderDevice.h"
#include "DeviceContext.h"
#include "RefCntAutoPtr.hpp"
struct IUnityInterfaces;
class RenderAPI
{
public:
virtual ~RenderAPI() { }
// Process general event like initialization, shutdown, device loss/reset etc.
virtual void ProcessDeviceEvent(UnityGfxDeviceEventType type, IUnityInterfaces* interfaces) = 0;
virtual void AttachToNativeRenderTexture(void *nativeRenderTargetHandle, void *nativeDepthTextureHandle) = 0;
// Is the API using "reversed" (1.0 at near plane, 0.0 at far plane) depth buffer?
// Reversed Z is used on modern platforms, and improves depth buffer precision.
virtual bool GetUsesReverseZ() = 0;
virtual void BeginRendering() {}
virtual void EndRendering()
{
if (m_Context)
m_Context->InvalidateState();
}
virtual bool IsDX() = 0;
Diligent::IRenderDevice *GetDevice() { return m_Device; }
Diligent::IDeviceContext *GetDeviceContext() { return m_Context; }
Diligent::TEXTURE_FORMAT GetRenderTargetFormat()const { return m_RenderTargetFormat; };
Diligent::TEXTURE_FORMAT GetDepthBufferFormat()const { return m_DepthBufferFormat; };
void CreateTextureViews(Diligent::ITexture *pRenderTarget, Diligent::ITexture *pDepthBuffer);
protected:
Diligent::RefCntAutoPtr<Diligent::IRenderDevice> m_Device;
Diligent::RefCntAutoPtr<Diligent::IDeviceContext> m_Context;
Diligent::RefCntAutoPtr<Diligent::ITextureView> m_RTV;
Diligent::RefCntAutoPtr<Diligent::ITextureView> m_DSV;
Diligent::TEXTURE_FORMAT m_RenderTargetFormat = Diligent::TEX_FORMAT_UNKNOWN;
Diligent::TEXTURE_FORMAT m_DepthBufferFormat = Diligent::TEX_FORMAT_UNKNOWN;
};
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