jboolean select_dispman_cursor(LensNativePort *lensPort) {
if (load_bcm_symbols() != 0) {
//this indicates an error on loading bcm libraries, thus we cannot use the dispman cursor impl
return JNI_FALSE;
}
lensPort->platformName = platformName;
lensPort->setNativeCursor = fbDispmanSetNativeCursor;
lensPort->cursorInitialize = fbDispmanCursorInitialize;
lensPort->cursorSetPosition = fbDispmanCursorSetPosition;
lensPort->cursorClose = _fbDispmanCursorClose;
lensPort->createNativeCursor = fbDispmanCreateNativeCursor;
lensPort->releaseNativeCursor = fbDispmanReleaseNativeCursor;
lensPort->setVisible = fbDispmanSetVisible;
lensPort->robotScreenCapture = fbDispmanRobotScreenCapture;
lensPort->cursorTranslucency = JNI_TRUE;
return JNI_TRUE;
}
int load_wrapped_gles_symbols() {
if (done_loading_symbols) {
return 0;
}
done_loading_symbols = 1;
//Note that there is an order depenacy here - The PI wants GLES first.
// Other platfroms needs the RTLD_GLOBAL to resolve symbols correctly.
libglesv2 = dlopen("libGLESv2.so", RTLD_LAZY | RTLD_GLOBAL);
if (!libglesv2) {
fprintf(stderr, "Did not find libGLESv2.so %s\n", dlerror());
return 0;
}
libegl = dlopen("libEGL.so", RTLD_LAZY | RTLD_GLOBAL);
if (!libegl) {
fprintf(stderr, "Did not find libEGL.so %s\n", dlerror());
return 0;
}
void *libbcm = dlopen("libbcm_host.so", RTLD_LAZY);
int error = 0;
if (load_bcm_symbols() == 0) {
// useDispman
} else if (access("/dev/mxc_vpu", F_OK) == 0) {
useVivanteFB = 1;
error += load_vivante_symbols(libegl);
}
error += load_egl_symbols(libegl);
return error;
}
JNIEXPORT jlong JNICALL Java_com_sun_glass_ui_monocle_dispman_DispmanAcceleratedScreen__1platformGetNativeWindow
(JNIEnv *env, jobject obj, jint displayID, jint layerID) {
#ifdef USE_DISPMAN
EGL_DISPMANX_WINDOW_T *dispmanWindow;
DISPMANX_DISPLAY_HANDLE_T display = 0;
DISPMANX_ELEMENT_HANDLE_T element;
DISPMANX_UPDATE_HANDLE_T update;
VC_RECT_T dst = { 0, 0, 0, 0 };
VC_RECT_T src = { 0, 0, 0, 0 };
load_bcm_symbols();
(*wr_bcm_host_init)();
dispmanWindow = (EGL_DISPMANX_WINDOW_T *)calloc(sizeof(EGL_DISPMANX_WINDOW_T), 1);
display = (*wr_vc_dispmanx_display_open)(displayID);
if (display == 0) {
fprintf(stderr, "Dispman: Cannot open display\n");
return 0;
}
int fbFileHandle;
struct fb_var_screeninfo screenInfo;
fbFileHandle = open("/dev/fb0", O_RDONLY);
if (fbFileHandle < 0) {
fprintf(stderr, "Cannot open framebuffer\n");
return 0;
}
if (ioctl(fbFileHandle, FBIOGET_VSCREENINFO, &screenInfo)) {
fprintf(stderr, "Cannot get screen info\n");
return 0;
}
close(fbFileHandle);
dst.width = screenInfo.xres;
dst.height = screenInfo.yres;
src.width = screenInfo.xres << 16;
src.height = screenInfo.yres << 16;
VC_DISPMANX_ALPHA_T alpha;
alpha.flags = DISPMANX_FLAGS_ALPHA_FROM_SOURCE;
alpha.opacity = 0xff;
alpha.mask = (DISPMANX_RESOURCE_HANDLE_T) 0;
update = (*wr_vc_dispmanx_update_start)(0);
element = (*wr_vc_dispmanx_element_add)(
update,
display,
layerID,
&dst,
0 /*src*/,
&src,
DISPMANX_PROTECTION_NONE,
&alpha,
0 /*clamp*/,
0 /*transform*/);
dispmanWindow->element = element;
dispmanWindow->width = screenInfo.xres;
dispmanWindow->height = screenInfo.yres;
(*wr_vc_dispmanx_update_submit_sync)(update);
return asJLong((NativeWindowType)dispmanWindow);
#else
return 0l;
#endif /* USE_DISPMAN */
}
