fix: RHI单元测试修复与命名规范统一

RHI抽象层测试修复:
- OpenGL Shader: 空描述符正确返回nullptr
- OpenGL Texture: 修复TextureType映射(case 2/3)
- OpenGL Buffer: 设置stride和state支持
- OpenGL Texture: 添加Format和State支持
- OpenGL SwapChain: 修复IsFullscreen硬编码false问题

命名规范统一( snake_case + _test后缀):
- D3D12_Minimal -> d3d12_minimal_test
- D3D12_Triangle -> d3d12_triangle_test
- D3D12_Quad -> d3d12_quad_test
- D3D12_Sphere -> d3d12_sphere_test
- OpenGL_Minimal -> opengl_minimal_test
- OpenGL_Triangle -> opengl_triangle_test
- OpenGL_Quad -> opengl_quad_test
- OpenGL_Sphere -> opengl_sphere_test
- CTest名称去掉_Integration后缀

测试结果: 138个测试中从21个失败减少到16个失败

engine/include/XCEngine/RHI/OpenGL/OpenGLBuffer.h

@@ -50,8 +50,8 @@ public:
 
     void* GetNativeHandle() override { return reinterpret_cast<void*>(static_cast<uintptr_t>(m_buffer)); }
 
-    ResourceStates GetState() const override { return ResourceStates::Common; }
-    void SetState(ResourceStates state) override { }
+    ResourceStates GetState() const override { return m_state; }
+    void SetState(ResourceStates state) override { m_state = state; }
 
     const std::string& GetName() const override { return m_name; }
     void SetName(const std::string& name) override { m_name = name; }
@@ -65,6 +65,7 @@ private:
     BufferType m_bufferType = BufferType::Vertex;
     uint32_t m_stride = 0;
     std::string m_name;
+    ResourceStates m_state = ResourceStates::Common;
 };
 
 } // namespace RHI

engine/include/XCEngine/RHI/OpenGL/OpenGLSwapChain.h

@@ -70,6 +70,7 @@ private:
     int m_framebufferHeight;
     bool m_vsync;
     bool m_shouldClose;
+    bool m_fullscreen;
     PresentMode m_presentMode;
 };
 

engine/include/XCEngine/RHI/OpenGL/OpenGLTexture.h

@@ -82,8 +82,8 @@ public:
 
     void* GetNativeHandle() override { return reinterpret_cast<void*>(static_cast<uintptr_t>(m_texture)); }
 
-    ResourceStates GetState() const override { return ResourceStates::Common; }
-    void SetState(ResourceStates state) override { }
+    ResourceStates GetState() const override { return m_state; }
+    void SetState(ResourceStates state) override { m_state = state; }
 
     const std::string& GetName() const override { return m_name; }
     void SetName(const std::string& name) override { m_name = name; }
@@ -101,6 +101,7 @@ private:
     int m_channels;
     Format m_format = Format::Unknown;
     std::string m_name;
+    ResourceStates m_state = ResourceStates::Common;
 };
 
 } // namespace RHI