LOCAL_MODULE := gralloc.default
LOCAL_CFLAGS:= -DLOG_TAG=\"gralloc\" -Wno-missing-field-initializers
+ifeq ($(TARGET_USE_PAN_DISPLAY),true)
+LOCAL_CFLAGS += -DUSE_PAN_DISPLAY=1
+endif
include $(BUILD_SHARED_LIBRARY)
/*****************************************************************************/
+// Set TARGET_USE_PAN_DISPLAY to true at compile time if the
+// board uses FBIOPAN_DISPLAY to setup page flipping, otherwise
+// default ioctl to do page-flipping is FBIOPUT_VSCREENINFO.
+#ifndef USE_PAN_DISPLAY
+#define USE_PAN_DISPLAY 0
+#endif
+
// numbers of buffers for page flipping
#define NUM_BUFFERS 2
uint32_t flags = PAGE_FLIP;
+#if USE_PAN_DISPLAY
+ if (ioctl(fd, FBIOPAN_DISPLAY, &info) == -1) {
+ ALOGW("FBIOPAN_DISPLAY failed, page flipping not supported");
+#else
if (ioctl(fd, FBIOPUT_VSCREENINFO, &info) == -1) {
+ ALOGW("FBIOPUT_VSCREENINFO failed, page flipping not supported");
+#endif
info.yres_virtual = info.yres;
flags &= ~PAGE_FLIP;
- ALOGW("FBIOPUT_VSCREENINFO failed, page flipping not supported");
}
if (info.yres_virtual < info.yres * 2) {