OpenGL: Restructure tests similar to D3D12 layout

- Move old test files to new unit/integration structure - Add OpenGL Test Fixture - Update CMakeLists.txt for new layout - Add OpenGL_Test_Restructuring_Plan.md
2026-03-20 17:37:09 +08:00
parent 3cd3b04c7e
commit 0a19fdfb0f
19 changed files with 843 additions and 103 deletions
--- a/tests/RHI/OpenGL/unit/fixtures/OpenGLTestFixture.cpp
+++ b/tests/RHI/OpenGL/unit/fixtures/OpenGLTestFixture.cpp
@@ -0,0 +1,124 @@
+#include "OpenGLTestFixture.h"
+
+using namespace XCEngine::RHI;
+
+static bool s_glfwInitialized = false;
+static bool s_gladInitialized = false;
+
+void OpenGLTestFixture::SetUp() {
+    if (!s_glfwInitialized) {
+        if (!glfwInit()) {
+            GTEST_SKIP() << "Failed to initialize GLFW";
+            return;
+        }
+
+        glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 6);
+        glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+
+        s_glfwInitialized = true;
+    }
+
+    m_window = glfwCreateWindow(640, 480, "OpenGL Tests", nullptr, nullptr);
+    if (!m_window) {
+        GTEST_SKIP() << "Failed to create GLFW window";
+        return;
+    }
+
+    glfwMakeContextCurrent(m_window);
+
+    if (!s_gladInitialized) {
+        if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) {
+            GTEST_SKIP() << "Failed to initialize GLAD";
+            glfwDestroyWindow(m_window);
+            m_window = nullptr;
+            return;
+        }
+        s_gladInitialized = true;
+    }
+
+    m_device = new OpenGLDevice();
+    m_device->CreateRenderWindow(640, 480, "Test Window", false);
+
+    ClearGLErrors();
+}
+
+void OpenGLTestFixture::TearDown() {
+    ResetGLState();
+
+    if (m_device) {
+        delete m_device;
+        m_device = nullptr;
+    }
+
+    if (m_window) {
+        glfwDestroyWindow(m_window);
+        m_window = nullptr;
+    }
+}
+
+void OpenGLTestFixture::MakeContextCurrent() {
+    if (m_window) {
+        glfwMakeContextCurrent(m_window);
+    }
+}
+
+void OpenGLTestFixture::DoneContextCurrent() {
+    glfwMakeContextCurrent(nullptr);
+}
+
+void OpenGLTestFixture::ClearGLErrors() {
+    while (glGetError() != GL_NO_ERROR);
+}
+
+bool OpenGLTestFixture::CheckGLError(const char* file, int line) {
+    GLenum error = glGetError();
+    if (error != GL_NO_ERROR) {
+        ADD_FAILURE() << "OpenGL Error: " << error
+                      << " (" << GetGLErrorString(error) << ")"
+                      << " at " << file << ":" << line;
+        return false;
+    }
+    return true;
+}
+
+const char* OpenGLTestFixture::GetGLErrorString(GLenum error) {
+    switch (error) {
+        case GL_NO_ERROR: return "GL_NO_ERROR";
+        case GL_INVALID_ENUM: return "GL_INVALID_ENUM";
+        case GL_INVALID_VALUE: return "GL_INVALID_VALUE";
+        case GL_INVALID_OPERATION: return "GL_INVALID_OPERATION";
+        case GL_INVALID_FRAMEBUFFER_OPERATION: return "GL_INVALID_FRAMEBUFFER_OPERATION";
+        case GL_OUT_OF_MEMORY: return "GL_OUT_OF_MEMORY";
+        default: return "Unknown error";
+    }
+}
+
+void OpenGLTestFixture::ResetGLState() {
+    glBindBuffer(GL_ARRAY_BUFFER, 0);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+    glBindBuffer(GL_UNIFORM_BUFFER, 0);
+
+    glUseProgram(0);
+
+    glBindVertexArray(0);
+
+    glBindFramebuffer(GL_FRAMEBUFFER, 0);
+    glBindRenderbuffer(GL_RENDERBUFFER, 0);
+
+    glActiveTexture(GL_TEXTURE0);
+    for (int i = 0; i < 16; ++i) {
+        glBindTexture(GL_TEXTURE_2D, 0);
+    }
+
+    glDisable(GL_DEPTH_TEST);
+    glDisable(GL_STENCIL_TEST);
+    glDisable(GL_BLEND);
+    glDisable(GL_CULL_FACE);
+    glDisable(GL_SCISSOR_TEST);
+
+    glDepthFunc(GL_LESS);
+    glStencilFunc(GL_ALWAYS, 0, 0xFF);
+    glBlendFunc(GL_ONE, GL_ZERO);
+}