RT1052 emWin 性能测试之 RotateHQ 图片旋转

为而不争 · 发表于 2018-9-1 17:01:42

用 SDK_2.3.1_MIMXRT1052xxxxx（官方SDK原件）中的emWin列程）运行官方的参考代码 GUI_MEMDEV_RotateHQ 旋转功能：

GUI_MEMDEV_Handle hMemSource;
GUI_MEMDEV_Handle hMemDest;
GUI_RECT RectSource = {0, 0, 69, 39};
GUI_RECT RectDest = {0, 0, 79, 79};
hMemSource = GUI_MEMDEV_Create(0, 0, 70, 40);
hMemDest = GUI_MEMDEV_Create(0, 0, 80, 80);
GUI_MEMDEV_Select(hMemSource);
GUI_DrawGradientV(0, 0,
                  69, 39,
                  GUI_WHITE, GUI_DARKGREEN);
GUI_SetColor(GUI_BLUE);
GUI_SetFont(&GUI_Font20B_ASCII);
GUI_SetTextMode(GUI_TM_TRANS);
GUI_DispStringInRect("armfly", &RectSource, GUI_TA_HCENTER | GUI_TA_VCENTER);
GUI_DrawRect(0, 0, 69, 39);
GUI_MEMDEV_RotateHQ(hMemSource, hMemDest,
                     5,
                     20,
                     30 * 1000,
                     1000);
GUI_MEMDEV_CopyToLCDAt(hMemSource, 140, 140);
GUI_MEMDEV_CopyToLCDAt(hMemDest, 40, 40);

运行一个while(1)循环，让他连续增加角度运行，奇迹出现了，这么小一个图片帧率居然只有1~2帧，一个600Mhz和mcu 不应该只能这么一点性能呀！
请教@原子大神这是不是RT1052的正常性能！非常不解