restructure

apps/RenderCadenceCompositor/render/runtime/RuntimeShaderRenderer.h

@@ -0,0 +1,51 @@
+#pragma once
+
+#include "GLExtensions.h"
+#include "RuntimeShaderProgram.h"
+#include "../../runtime/RuntimeShaderArtifact.h"
+
+#include <cstdint>
+#include <string>
+#include <vector>
+
+class RuntimeShaderRenderer
+{
+public:
+	RuntimeShaderRenderer() = default;
+	RuntimeShaderRenderer(const RuntimeShaderRenderer&) = delete;
+	RuntimeShaderRenderer& operator=(const RuntimeShaderRenderer&) = delete;
+	~RuntimeShaderRenderer();
+
+	bool CommitFragmentShader(const std::string& fragmentShaderSource, std::string& error);
+	bool CommitShaderArtifact(const RuntimeShaderArtifact& artifact, std::string& error);
+	bool CommitPreparedProgram(RuntimePreparedShaderProgram& preparedProgram, std::string& error);
+	bool HasProgram() const { return mProgram != 0; }
+	void RenderFrame(uint64_t frameIndex, unsigned width, unsigned height);
+	void ShutdownGl();
+
+	static bool BuildPreparedProgram(
+		const std::string& layerId,
+		const std::string& sourceFingerprint,
+		const RuntimeShaderArtifact& artifact,
+		RuntimePreparedShaderProgram& preparedProgram);
+
+private:
+	bool EnsureStaticGlResources(std::string& error);
+	static bool CompileShader(GLenum shaderType, const char* source, GLuint& shader, std::string& error);
+	static bool BuildProgram(const std::string& fragmentShaderSource, GLuint& program, GLuint& vertexShader, GLuint& fragmentShader, std::string& error);
+	static void AssignSamplerUniforms(GLuint program);
+	void UpdateGlobalParams(uint64_t frameIndex, unsigned width, unsigned height);
+	void BindRuntimeTextures();
+	void DestroyProgram();
+	void DestroyStaticGlResources();
+
+	RuntimeShaderArtifact mArtifact;
+	GLuint mProgram = 0;
+	GLuint mVertexShader = 0;
+	GLuint mFragmentShader = 0;
+	GLuint mVertexArray = 0;
+	GLuint mGlobalParamsBuffer = 0;
+	GLsizeiptr mGlobalParamsBufferSize = 0;
+	GLuint mFallbackSourceTexture = 0;
+	std::vector<unsigned char> mGlobalParamsScratch;
+};