Add OpenGLPipelineState and integrate into main.cpp

tests/OpenGL/main.cpp

@@ -19,6 +19,7 @@
 #include "XCEngine/Debug/FileLogSink.h"
 #include "XCEngine/RHI/OpenGL/OpenGLShader.h"
 #include "XCEngine/RHI/OpenGL/OpenGLDevice.h"
+#include "XCEngine/RHI/OpenGL/OpenGLPipelineState.h"
 
 using namespace XCEngine::Debug;
 using namespace XCEngine::RHI;
@@ -262,6 +263,7 @@ private:
 Model* model = nullptr;
 OpenGLShader* shader = nullptr;
 OpenGLDevice* device = nullptr;
+OpenGLPipelineState* pipeline = nullptr;
 int frameCount = 0;
 
 void framebuffer_size_callback(GLFWwindow* window, int width, int height)
@@ -279,10 +281,17 @@ void Initialize()
 
 	Log("OpenGL Test Application Started");
 
+	pipeline = new OpenGLPipelineState();
+	ViewportState viewport;
+	viewport.width = SCR_WIDTH;
+	viewport.height = SCR_HEIGHT;
+	pipeline->SetViewport(viewport);
+	pipeline->SetClearColor(0.1f, 0.1f, 0.1f, 1.0f);
+	pipeline->Apply();
+
 	model = new Model("res/models/backpack/backpack.obj");
 	shader = new OpenGLShader();
 	shader->CompileFromFile("Shaders/vertexshader.glsl", "Shaders/fragmentshader.glsl");
-	glEnable(GL_DEPTH_TEST);
 
 	Log("Initialization complete");
 }
@@ -319,8 +328,7 @@ bool SaveScreenshot(const char* filename)
 
 void Render()
 {
-	glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
-	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+	pipeline->Clear(3); // COLOR_BUFFER_BIT | DEPTH_BUFFER_BIT
 
 	shader->Use();
 
@@ -387,6 +395,7 @@ int main()
 
 	Log("Application closed");
 
+	delete pipeline;
 	delete device;
 	delete shader;
 	delete model;