void
_eglutNativeInitWindow(struct eglut_window *win, const char *title,
int x, int y, int w, int h)
{
EGLint surf_attribs[16];
EGLint i;
const char *exts;
exts = eglQueryString(_eglut->dpy, EGL_EXTENSIONS);
if (!exts || !strstr(exts, "EGL_MESA_screen_surface"))
_eglutFatal("EGL_MESA_screen_surface is not supported\n");
init_kms();
i = 0;
surf_attribs[i++] = EGL_WIDTH;
surf_attribs[i++] = kms_width;
surf_attribs[i++] = EGL_HEIGHT;
surf_attribs[i++] = kms_height;
surf_attribs[i++] = EGL_NONE;
/* create surface */
win->native.u.surface = eglCreateScreenSurfaceMESA(_eglut->dpy,
win->config, surf_attribs);
if (win->native.u.surface == EGL_NO_SURFACE)
_eglutFatal("eglCreateScreenSurfaceMESA failed\n");
if (!eglShowScreenSurfaceMESA(_eglut->dpy, kms_screen,
win->native.u.surface, kms_mode))
_eglutFatal("eglShowScreenSurfaceMESA failed\n");
win->native.width = kms_width;
win->native.height = kms_height;
}
void
_eglutNativeFiniWindow(struct eglut_window *win)
{
eglShowScreenSurfaceMESA(_eglut->dpy,
kms_screen, EGL_NO_SURFACE, 0);
eglDestroySurface(_eglut->dpy, win->native.u.surface);
}
static Bool
xeglScreenInit (int index,
ScreenPtr pScreen,
int argc,
char **argv)
{
EGLSurface eSurface;
EGLModeMESA mode;
int count;
xeglScreenPtr pScreenPriv;
glitz_drawable_format_t *format;
glitz_drawable_t *drawable;
EGLint screenAttribs[] = {
EGL_WIDTH, 1024,
EGL_HEIGHT, 768,
EGL_NONE
};
if (xglScreenInfo.width == 0 || xglScreenInfo.height == 0)
{
xglScreenInfo.width = XEGL_DEFAULT_SCREEN_WIDTH;
xglScreenInfo.height = XEGL_DEFAULT_SCREEN_HEIGHT;
}
screenAttribs[1] = xglScreenInfo.width;
screenAttribs[3] = xglScreenInfo.height;
format = xglVisuals[0].format;
if (!xeglAllocatePrivates (pScreen))
return FALSE;
currentScreen = pScreen;
pScreenPriv = XEGL_GET_SCREEN_PRIV (pScreen);
if (xglScreenInfo.width == 0 || xglScreenInfo.height == 0)
{
xglScreenInfo.width = XEGL_DEFAULT_SCREEN_WIDTH;
xglScreenInfo.height = XEGL_DEFAULT_SCREEN_HEIGHT;
}
eglGetModesMESA (eDisplay, eScreen, &mode, 1, &count);
eSurface = eglCreateScreenSurfaceMESA (eDisplay, format->id, screenAttribs);
if (eSurface == EGL_NO_SURFACE)
{
ErrorF ("failed to create screen surface\n");
return FALSE;
}
eglShowScreenSurfaceMESA (eDisplay, eScreen, eSurface, mode);
drawable = glitz_egl_create_surface (eDisplay, eScreen, format, eSurface,
xglScreenInfo.width,
xglScreenInfo.height);
if (!drawable)
{
ErrorF ("[%d] couldn't create glitz drawable for window\n", index);
return FALSE;
}
xglScreenInfo.drawable = drawable;
if (!xglScreenInit (pScreen))
return FALSE;
#ifdef GLXEXT
if (!xglInitVisualConfigs (pScreen))
return FALSE;
#endif
XGL_SCREEN_WRAP (CloseScreen, xeglCloseScreen);
miDCInitialize (pScreen, &kdPointerScreenFuncs);
miCreateDefColormap(pScreen);
if (!xglFinishScreenInit (pScreen))
return FALSE;
return TRUE;
}
int
main(int argc, char *argv[])
{
int maj, min;
EGLContext ctx;
EGLSurface screen_surf;
EGLConfig configs[10];
EGLScreenMESA screen;
EGLModeMESA mode;
EGLint numConfigs, count;
EGLBoolean b;
const GLubyte *bitmap;
EGLint screenAttribs[32];
EGLint i;
EGLDisplay d = eglGetDisplay(EGL_DEFAULT_DISPLAY);
assert(d);
if (!eglInitialize(d, &maj, &min)) {
printf("demo: eglInitialize failed\n");
exit(1);
}
printf("EGL version = %d.%d\n", maj, min);
printf("EGL_VENDOR = %s\n", eglQueryString(d, EGL_VENDOR));
if (!strstr(eglQueryString(d, EGL_EXTENSIONS),
"EGL_MESA_screen_surface")) {
printf("EGL_MESA_screen_surface is not supported\n");
exit(1);
}
eglGetConfigs(d, configs, 10, &numConfigs);
eglGetScreensMESA(d, &screen, 1, &count);
eglGetModesMESA(d, screen, &mode, 1, &count);
eglBindAPI(EGL_OPENGL_API);
ctx = eglCreateContext(d, configs[0], EGL_NO_CONTEXT, NULL);
if (ctx == EGL_NO_CONTEXT) {
printf("failed to create context\n");
return 0;
}
i = 0;
screenAttribs[i++] = EGL_WIDTH;
eglGetModeAttribMESA(d, mode, EGL_WIDTH, &screenAttribs[i++]);
screenAttribs[i++] = EGL_HEIGHT;
eglGetModeAttribMESA(d, mode, EGL_HEIGHT, &screenAttribs[i++]);
screenAttribs[i] = EGL_NONE;
screen_surf = eglCreateScreenSurfaceMESA(d, configs[0], screenAttribs);
if (screen_surf == EGL_NO_SURFACE) {
printf("failed to create screen surface\n");
return 0;
}
eglShowScreenSurfaceMESA(d, screen, screen_surf, mode);
b = eglMakeCurrent(d, screen_surf, screen_surf, ctx);
if (!b) {
printf("make current failed\n");
return 0;
}
glViewport(0, 0, 1024, 768);
Init();
Reshape(1024, 768);
/* some drivers crash when rendering to front buffer */
#if 0
glDrawBuffer( GL_FRONT );
glClearColor( 0, 1.0, 0, 1);
glClear( GL_COLOR_BUFFER_BIT );
#endif
doubleBuffer = 1;
glDrawBuffer( GL_BACK );
Draw(d, screen_surf);
sleep(2);
/* TODO EGL_KHR_lock_surface */
bitmap = NULL;
if (bitmap)
write_ppm("dump.ppm", bitmap, 1024, 768);
eglDestroySurface(d, screen_surf);
eglDestroyContext(d, ctx);
eglTerminate(d);
return 0;
}
