Initial commit - some engine bugs stopping compiling

third-party/glad/test/c/run/wgl/default/001/test.c

@@ -0,0 +1,102 @@
+/*
+ * Full WGL, see examples/c/wgl.c for more information
+ *
+ * GLAD: $GLAD --out-path=$tmp --api="wgl,gl:core" c --loader --alias
+ * COMPILE: $MINGW_GCC -Wno-pedantic $test -o $tmp/test.exe -I$tmp/include $tmp/src/wgl.c $tmp/src/gl.c -lgdi32 -lopengl32
+ * RUN: $WINE $tmp/test.exe
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <tchar.h>
+
+#include <glad/wgl.h>
+#include <glad/gl.h>
+
+
+#define ASSERT(expression, message, args...) if(!(expression)) { fprintf(stderr, "%s(%d): " message "\n", __FILE__, __LINE__, ##args); exit(1); }
+
+
+int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {
+    UNREFERENCED_PARAMETER(hPrevInstance);
+    UNREFERENCED_PARAMETER(lpCmdLine);
+
+    WNDCLASSEX wcex = { };
+    wcex.cbSize = sizeof(WNDCLASSEX);
+    wcex.style = CS_HREDRAW | CS_VREDRAW;
+    wcex.lpfnWndProc = DefWindowProc;
+    wcex.hInstance = hInstance;
+    wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
+    wcex.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1);
+    wcex.lpszClassName = _T("<test>");
+
+    ATOM wndclass = RegisterClassEx(&wcex);
+
+    HWND hWnd = CreateWindow(MAKEINTATOM(wndclass), _T("<test>"),
+                             WS_OVERLAPPEDWINDOW,
+                             0, 0,
+                             50, 50,
+                             NULL, NULL, hInstance, NULL);
+    ASSERT(hWnd != NULL, "window creation failed");
+
+    HDC hdc = GetDC(hWnd);
+    ASSERT(hdc != NULL, "failed to get window's device context");
+
+    PIXELFORMATDESCRIPTOR pfd = { };
+    pfd.nSize = sizeof(pfd);
+    pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
+    pfd.dwFlags = PFD_DOUBLEBUFFER | PFD_SUPPORT_OPENGL | PFD_DRAW_TO_WINDOW;
+    pfd.iPixelType = PFD_TYPE_RGBA;
+    pfd.cColorBits = 32;
+    pfd.cDepthBits = 32;
+    pfd.iLayerType = PFD_MAIN_PLANE;
+    int format = ChoosePixelFormat(hdc, &pfd);
+    ASSERT(format != 0 && SetPixelFormat(hdc, format, &pfd) != FALSE, "failed to set pixel format");
+
+    HGLRC temp_context = wglCreateContext(hdc);
+    ASSERT(temp_context != NULL, "failed to create initial rendering context");
+
+    wglMakeCurrent(hdc, temp_context);
+
+    int wgl_version = gladLoaderLoadWGL(hdc);
+    ASSERT(wgl_version >= 1000, "failed to load WGL");
+    ASSERT(GLAD_VERSION_MAJOR(wgl_version) >= 1, "wgl major version %d < 1", GLAD_VERSION_MAJOR(wgl_version));
+    ASSERT(GLAD_VERSION_MINOR(wgl_version) >= 0, "wgl minor version %d < 0", GLAD_VERSION_MINOR(wgl_version));
+
+    int attributes[] = {
+        WGL_CONTEXT_MAJOR_VERSION_ARB, 3,
+        WGL_CONTEXT_MINOR_VERSION_ARB, 2,
+        WGL_CONTEXT_FLAGS_ARB,
+        WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
+        0
+    };
+
+    HGLRC opengl_context = wglCreateContextAttribsARB(hdc, NULL, attributes);
+    ASSERT(opengl_context != NULL, "failed to create final rendering context");
+
+    wglMakeCurrent(NULL, NULL);
+    wglDeleteContext(temp_context);
+    wglMakeCurrent(hdc, opengl_context);
+
+    int version = gladLoaderLoadGL();
+    ASSERT(version >= 3002, "glad version %d < 32", version);
+    ASSERT(GLAD_VERSION_MAJOR(version) >= 3, "gl major version %d < 3", GLAD_VERSION_MAJOR(version));
+    ASSERT(GLAD_VERSION_MAJOR(version) > 3 || GLAD_VERSION_MINOR(version) >= 2, "gl minor version too small %d < 2", GLAD_VERSION_MINOR(version));
+
+    ShowWindow(hWnd, nCmdShow);
+    UpdateWindow(hWnd);
+
+    glClearColor(0.0f, 0.0f, 1.0f, 1.0f);
+    glClear(GL_COLOR_BUFFER_BIT);
+
+    SwapBuffers(hdc);
+
+    wglDeleteContext(opengl_context);
+    ReleaseDC(hWnd, hdc);
+    DestroyWindow(hWnd);
+
+    return 0;
+}