Separate history

apps/LoopThroughWithOpenGLCompositing/gl/OpenGLRenderer.h

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+#pragma once
+
+#include "GLExtensions.h"
+#include "ShaderTypes.h"
+#include "TemporalHistoryBuffers.h"
+
+#include <windows.h>
+
+#include <filesystem>
+#include <gl/gl.h>
+#include <string>
+#include <vector>
+
+class OpenGLRenderer
+{
+public:
+	struct LayerProgram
+	{
+		struct TextureBinding
+		{
+			std::string samplerName;
+			std::filesystem::path sourcePath;
+			GLuint texture = 0;
+		};
+
+		struct TextBinding
+		{
+			std::string parameterId;
+			std::string samplerName;
+			std::string fontId;
+			GLuint texture = 0;
+			std::string renderedText;
+			unsigned renderedWidth = 0;
+			unsigned renderedHeight = 0;
+		};
+
+		std::string layerId;
+		std::string shaderId;
+		GLuint shaderTextureBase = 0;
+		GLuint program = 0;
+		GLuint vertexShader = 0;
+		GLuint fragmentShader = 0;
+		std::vector<TextureBinding> textureBindings;
+		std::vector<TextBinding> textBindings;
+	};
+
+	bool mFastTransferExtensionAvailable = false;
+	GLuint mCaptureTexture = 0;
+	GLuint mDecodedTexture = 0;
+	GLuint mLayerTempTexture = 0;
+	GLuint mFBOTexture = 0;
+	GLuint mOutputTexture = 0;
+	GLuint mUnpinnedTextureBuffer = 0;
+	GLuint mDecodeFrameBuf = 0;
+	GLuint mLayerTempFrameBuf = 0;
+	GLuint mIdFrameBuf = 0;
+	GLuint mOutputFrameBuf = 0;
+	GLuint mIdColorBuf = 0;
+	GLuint mIdDepthBuf = 0;
+	GLuint mFullscreenVAO = 0;
+	GLuint mGlobalParamsUBO = 0;
+	GLuint mDecodeProgram = 0;
+	GLuint mDecodeVertexShader = 0;
+	GLuint mDecodeFragmentShader = 0;
+	GLsizeiptr mGlobalParamsUBOSize = 0;
+	int mViewWidth = 0;
+	int mViewHeight = 0;
+	std::vector<LayerProgram> mLayerPrograms;
+	TemporalHistoryBuffers mTemporalHistory;
+
+	bool InitializeResources(unsigned inputFrameWidth, unsigned inputFrameHeight, unsigned outputFrameWidth, unsigned outputFrameHeight, std::string& error);
+	void ResizeView(int width, int height);
+	void PresentToWindow(HDC hdc, unsigned outputFrameWidth, unsigned outputFrameHeight);
+	void DestroyResources();
+	void DestroySingleLayerProgram(LayerProgram& layerProgram);
+	void DestroyLayerPrograms();
+	void DestroyDecodeShaderProgram();
+};