JNIEXPORT jlong JNICALL Java_org_lwjgl_opengl_LinuxDisplay_nCreateCursor (JNIEnv *env, jclass clazz, jlong display, jint width, jint height, jint x_hotspot, jint y_hotspot, jint num_images, jobject image_buffer, jint images_offset, jobject delay_buffer, jint delays_offset) { Display *disp = (Display *)(intptr_t)display; const int *delays = NULL; if (delay_buffer != NULL) delays = (const int *)(*env)->GetDirectBufferAddress(env, delay_buffer) + delays_offset; XcursorPixel *pixels = (XcursorPixel *)(*env)->GetDirectBufferAddress(env, image_buffer) + images_offset; int stride = width*height; XcursorImages *cursor_images = XcursorImagesCreate(num_images); if (cursor_images == NULL) { throwException(env, "Could not allocate cursor."); return None; } cursor_images->nimage = num_images; int i; for (i = 0; i < num_images; i++) { XcursorImage *cursor_image = XcursorImageCreate(width, height); cursor_image->xhot = x_hotspot; cursor_image->yhot = y_hotspot; cursor_image->pixels = &(pixels[stride*i]); if (num_images > 1) cursor_image->delay = delays[i]; cursor_images->images[i] = cursor_image; } Cursor cursor = XcursorImagesLoadCursor(disp, cursor_images); XcursorImagesDestroy(cursor_images); return cursor; }
void CHwX11Cursor::Finish() { if (cimages.size()<1) return; //resize images for (std::vector<XcursorImage*>::iterator it = cimages.begin(); it < cimages.end(); ++it) resizeImage(*it, xmaxsize, ymaxsize); XcursorImages *cis = XcursorImagesCreate(cimages.size()); cis->nimage = cimages.size(); for (int i = 0; i < int(cimages.size()); ++i) { XcursorImage* ci = cimages[i]; ci->xhot = (hotSpot==CMouseCursor::TopLeft) ? 0 : ci->width/2; ci->yhot = (hotSpot==CMouseCursor::TopLeft) ? 0 : ci->height/2; cis->images[i] = ci; } SDL_SysWMinfo info; SDL_VERSION(&info.version); if (!SDL_GetWMInfo(&info)) { XcursorImagesDestroy(cis); cimages.clear(); logOutput.Print("SDL error: can't get X11 window info"); return; } cursor = XcursorImagesLoadCursor(info.info.x11.display,cis); XcursorImagesDestroy(cis); cimages.clear(); }