int gAppAlive = 1;
static const char sAppName[] =
- "San Angeles Observation OpenGL ES version example (Linux)";
+ "San Angeles Observation OpenGL ES version example (Linux)";
static int sWindowWidth = WINDOW_DEFAULT_WIDTH;
static int sWindowHeight = WINDOW_DEFAULT_HEIGHT;
const char *egl_strerror(unsigned err)
{
switch(err){
- case EGL_SUCCESS: return "SUCCESS";
- case EGL_NOT_INITIALIZED: return "NOT INITIALIZED";
- case EGL_BAD_ACCESS: return "BAD ACCESS";
- case EGL_BAD_ALLOC: return "BAD ALLOC";
- case EGL_BAD_ATTRIBUTE: return "BAD_ATTRIBUTE";
- case EGL_BAD_CONFIG: return "BAD CONFIG";
- case EGL_BAD_CONTEXT: return "BAD CONTEXT";
- case EGL_BAD_CURRENT_SURFACE: return "BAD CURRENT SURFACE";
- case EGL_BAD_DISPLAY: return "BAD DISPLAY";
- case EGL_BAD_MATCH: return "BAD MATCH";
- case EGL_BAD_NATIVE_PIXMAP: return "BAD NATIVE PIXMAP";
- case EGL_BAD_NATIVE_WINDOW: return "BAD NATIVE WINDOW";
- case EGL_BAD_PARAMETER: return "BAD PARAMETER";
- case EGL_BAD_SURFACE: return "BAD_SURFACE";
-// case EGL_CONTEXT_LOST: return "CONTEXT LOST";
- default: return "UNKNOWN";
+ case EGL_SUCCESS: return "SUCCESS";
+ case EGL_NOT_INITIALIZED: return "NOT INITIALIZED";
+ case EGL_BAD_ACCESS: return "BAD ACCESS";
+ case EGL_BAD_ALLOC: return "BAD ALLOC";
+ case EGL_BAD_ATTRIBUTE: return "BAD_ATTRIBUTE";
+ case EGL_BAD_CONFIG: return "BAD CONFIG";
+ case EGL_BAD_CONTEXT: return "BAD CONTEXT";
+ case EGL_BAD_CURRENT_SURFACE: return "BAD CURRENT SURFACE";
+ case EGL_BAD_DISPLAY: return "BAD DISPLAY";
+ case EGL_BAD_MATCH: return "BAD MATCH";
+ case EGL_BAD_NATIVE_PIXMAP: return "BAD NATIVE PIXMAP";
+ case EGL_BAD_NATIVE_WINDOW: return "BAD NATIVE WINDOW";
+ case EGL_BAD_PARAMETER: return "BAD PARAMETER";
+ case EGL_BAD_SURFACE: return "BAD_SURFACE";
+ // case EGL_CONTEXT_LOST: return "CONTEXT LOST";
+ default: return "UNKNOWN";
}
}
fprintf(stderr, "EGL Error: 0x%04x\n", (int)error);
}
-static int initGraphics()
+static int initGraphics(unsigned samples)
{
EGLint configAttribs[] = {
- EGL_DEPTH_SIZE, 16,
- EGL_NONE
- };
-
- EGLint majorVersion;
- EGLint minorVersion;
- EGLContext context;
- EGLConfig config;
- EGLSurface surface;
- EGLint w, h;
- EGLDisplay dpy;
-
- EGLNativeWindowType window = android_createDisplaySurface();
-
- dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
- eglInitialize(dpy, &majorVersion, &minorVersion);
-
- status_t err = EGLUtils::selectConfigForNativeWindow(
- dpy, configAttribs, window, &config);
- if (err) {
- fprintf(stderr, "couldn't find an EGLConfig matching the screen format\n");
- return 0;
- }
-
- surface = eglCreateWindowSurface(dpy, config, window, NULL);
- egl_error("eglCreateWindowSurface");
-
- fprintf(stderr,"surface = %p\n", surface);
-
- context = eglCreateContext(dpy, config, NULL, NULL);
- egl_error("eglCreateContext");
- fprintf(stderr,"context = %p\n", context);
-
- eglMakeCurrent(dpy, surface, surface, context);
- egl_error("eglMakeCurrent");
-
- eglQuerySurface(dpy, surface, EGL_WIDTH, &sWindowWidth);
- eglQuerySurface(dpy, surface, EGL_HEIGHT, &sWindowHeight);
+ EGL_DEPTH_SIZE, 16,
+ EGL_SAMPLE_BUFFERS, samples ? 1 : 0,
+ EGL_SAMPLES, samples,
+ EGL_NONE
+ };
+
+ EGLint majorVersion;
+ EGLint minorVersion;
+ EGLContext context;
+ EGLConfig config;
+ EGLSurface surface;
+ EGLint w, h;
+ EGLDisplay dpy;
+
+ EGLNativeWindowType window = android_createDisplaySurface();
+
+ dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+ eglInitialize(dpy, &majorVersion, &minorVersion);
+
+ status_t err = EGLUtils::selectConfigForNativeWindow(
+ dpy, configAttribs, window, &config);
+ if (err) {
+ fprintf(stderr, "couldn't find an EGLConfig matching the screen format\n");
+ return 0;
+ }
+
+ surface = eglCreateWindowSurface(dpy, config, window, NULL);
+ egl_error("eglCreateWindowSurface");
+
+ fprintf(stderr,"surface = %p\n", surface);
+
+ context = eglCreateContext(dpy, config, NULL, NULL);
+ egl_error("eglCreateContext");
+ fprintf(stderr,"context = %p\n", context);
+
+ eglMakeCurrent(dpy, surface, surface, context);
+ egl_error("eglMakeCurrent");
+
+ eglQuerySurface(dpy, surface, EGL_WIDTH, &sWindowWidth);
+ eglQuerySurface(dpy, surface, EGL_HEIGHT, &sWindowHeight);
sEglDisplay = dpy;
sEglSurface = surface;
sEglContext = context;
+ if (samples == 0) {
+ // GL_MULTISAMPLE is enabled by default
+ glDisable(GL_MULTISAMPLE);
+ }
+
return EGL_TRUE;
}
int main(int argc, char *argv[])
{
- // not referenced:
- argc = argc;
- argv = argv;
+ unsigned samples = 0;
+ printf("usage: %s [samples]\n", argv[0]);
+ if (argc == 2) {
+ samples = atoi( argv[1] );
+ printf("Multisample enabled: GL_SAMPLES = %u\n", samples);
+ }
- if (!initGraphics())
+ if (!initGraphics(samples))
{
fprintf(stderr, "Graphics initialization failed.\n");
return EXIT_FAILURE;
int frameCount = 0;
gettimeofday(&timeTemp, NULL);
double totalTime = timeTemp.tv_usec/1000000.0 + timeTemp.tv_sec;
-
+
while (gAppAlive)
{
struct timeval timeNow;