add missing source file

Author: kusma

window-test.c

@@ -0,0 +1,217 @@
+#include <assert.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#include <GLES2/gl2.h>  /* use OpenGL ES 2.x */
+#include <EGL/egl.h>
+
+void run_tests(void);
+
+static void reshape(int width, int height)
+{
+   glViewport(0, 0, (GLint) width, (GLint) height);
+}
+
+static void
+make_x_window(Display *x_dpy, EGLDisplay egl_dpy,
+              const char *name,
+              int x, int y, int width, int height,
+              Window *winRet,
+              EGLContext *ctxRet,
+              EGLSurface *surfRet)
+{
+   static const EGLint attribs[] = {
+      EGL_RED_SIZE, 1,
+      EGL_GREEN_SIZE, 1,
+      EGL_BLUE_SIZE, 1,
+/*      EGL_DEPTH_SIZE, 1, */
+      EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
+      EGL_NONE
+   };
+   static const EGLint ctx_attribs[] = {
+      EGL_CONTEXT_CLIENT_VERSION, 2,
+      EGL_NONE
+   };
+
+   int scrnum;
+   XSetWindowAttributes attr;
+   unsigned long mask;
+   Window root;
+   Window win;
+   XVisualInfo *visInfo, visTemplate;
+   int num_visuals;
+   EGLContext ctx;
+   EGLConfig config;
+   EGLint num_configs;
+   EGLint vid;
+
+   scrnum = DefaultScreen( x_dpy );
+   root = RootWindow( x_dpy, scrnum );
+
+   if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs)) {
+      printf("Error: couldn't get an EGL visual config\n");
+      exit(1);
+   }
+
+   assert(config);
+   assert(num_configs > 0);
+
+   if (!eglGetConfigAttrib(egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
+      printf("Error: eglGetConfigAttrib() failed\n");
+      exit(1);
+   }
+
+   /* The X window visual must match the EGL config */
+   visTemplate.visualid = vid;
+   visInfo = XGetVisualInfo(x_dpy, VisualIDMask, &visTemplate, &num_visuals);
+   if (!visInfo) {
+      printf("Error: couldn't get X visual\n");
+      exit(1);
+   }
+
+   /* window attributes */
+   attr.background_pixel = 0;
+   attr.border_pixel = 0;
+   attr.colormap = XCreateColormap( x_dpy, root, visInfo->visual, AllocNone);
+   attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
+   mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
+
+   win = XCreateWindow( x_dpy, root, 0, 0, width, height,
+		        0, visInfo->depth, InputOutput,
+		        visInfo->visual, mask, &attr );
+
+   /* set hints and properties */
+   {
+      XSizeHints sizehints;
+      sizehints.x = x;
+      sizehints.y = y;
+      sizehints.width  = width;
+      sizehints.height = height;
+      sizehints.flags = USSize | USPosition;
+      XSetNormalHints(x_dpy, win, &sizehints);
+      XSetStandardProperties(x_dpy, win, name, name,
+                              None, (char **)NULL, 0, &sizehints);
+   }
+
+   eglBindAPI(EGL_OPENGL_ES_API);
+
+   ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, ctx_attribs );
+   if (!ctx) {
+      printf("Error: eglCreateContext failed\n");
+      exit(1);
+   }
+
+   /* test eglQueryContext() */
+   {
+      EGLint val;
+      eglQueryContext(egl_dpy, ctx, EGL_CONTEXT_CLIENT_VERSION, &val);
+      assert(val == 2);
+   }
+
+   *surfRet = eglCreateWindowSurface(egl_dpy, config, win, NULL);
+   if (!*surfRet) {
+      printf("Error: eglCreateWindowSurface failed\n");
+      exit(1);
+   }
+
+   /* sanity checks */
+   {
+      EGLint val;
+      eglQuerySurface(egl_dpy, *surfRet, EGL_WIDTH, &val);
+      assert(val == width);
+      eglQuerySurface(egl_dpy, *surfRet, EGL_HEIGHT, &val);
+      assert(val == height);
+      assert(eglGetConfigAttrib(egl_dpy, config, EGL_SURFACE_TYPE, &val));
+      assert(val & EGL_WINDOW_BIT);
+   }
+
+   XFree(visInfo);
+
+   *winRet = win;
+   *ctxRet = ctx;
+}
+
+static void
+usage(void)
+{
+   printf("Usage:\n");
+   printf("  -display <displayname>  set the display to run on\n");
+   printf("  -info                   display OpenGL renderer info\n");
+}
+
+EGLDisplay egl_dpy;
+EGLSurface egl_surf;
+
+void present(void)
+{
+   eglSwapBuffers(egl_dpy, egl_surf);
+}
+
+int
+main(int argc, char *argv[])
+{
+   const int winWidth = 32, winHeight = 32;
+   Display *x_dpy;
+   Window win;
+   EGLContext egl_ctx;
+   char *dpyName = NULL;
+   EGLint egl_major, egl_minor;
+   int i;
+   const char *s;
+
+   x_dpy = XOpenDisplay(dpyName);
+   if (!x_dpy) {
+      printf("Error: couldn't open display %s\n",
+	     dpyName ? dpyName : getenv("DISPLAY"));
+      return -1;
+   }
+
+   egl_dpy = eglGetDisplay(x_dpy);
+   if (!egl_dpy) {
+      printf("Error: eglGetDisplay() failed\n");
+      return -1;
+   }
+
+   if (!eglInitialize(egl_dpy, &egl_major, &egl_minor)) {
+      printf("Error: eglInitialize() failed\n");
+      return -1;
+   }
+
+   s = eglQueryString(egl_dpy, EGL_VERSION);
+   printf("EGL_VERSION = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_VENDOR);
+   printf("EGL_VENDOR = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
+   printf("EGL_EXTENSIONS = %s\n", s);
+
+   s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
+   printf("EGL_CLIENT_APIS = %s\n", s);
+
+   make_x_window(x_dpy, egl_dpy,
+                 "OpenGL ES 2.x tri", 0, 0, winWidth, winHeight,
+                 &win, &egl_ctx, &egl_surf);
+
+   XMapWindow(x_dpy, win);
+   if (!eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx)) {
+      printf("Error: eglMakeCurrent() failed\n");
+      return -1;
+   }
+
+   run_tests();
+
+   eglDestroyContext(egl_dpy, egl_ctx);
+   eglDestroySurface(egl_dpy, egl_surf);
+   eglTerminate(egl_dpy);
+
+
+   XDestroyWindow(x_dpy, win);
+   XCloseDisplay(x_dpy);
+
+   return 0;
+}