STemwin 系列（二）STM32 HAL库跑个分（刷屏速度）

本文主要是介绍STemwin 系列（二）STM32 HAL库跑个分（刷屏速度），希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

在上一篇的基础上 https://blog.csdn.net/so_cracy/article/details/80228595

加入以下代码：

/* 包含头文件 ----------------------------------------------------------------*/
#include "GUI.h"
#include "DIALOG.h"
#include "stdio.h"

/* 私有类型定义 --------------------------------------------------------------*/
/* 私有宏定义 ----------------------------------------------------------------*/
/* 私有变量 ------------------------------------------------------------------*/
static const GUI_COLOR _aColor[8] = {
0x000000,
0x0000FF,
0x00FF00,
0x00FFFF,
0xFF0000,
0xFF00FF,
0xFFFF00,
0xFFFFFF
};

U32 Stop_Test = 0;

/* 扩展变量 ------------------------------------------------------------------*/
/* 私有函数原形 --------------------------------------------------------------*/
/* 函数体 --------------------------------------------------------------------*/

/**
* 函数功能: 获取每秒像素值
* 输入参数: 无
* 返回值: U32：每秒像素值
* 说明: 无
*/
static U32 _GetPixelsPerSecond(void) {
GUI_COLOR Color, BkColor;
U32 x0, y0, x1, y1, xSize, ySize;
I32 t, t0;
U32 Cnt, PixelsPerSecond, PixelCnt;

/* Find an area which is not obstructed by any windows */
xSize = LCD_GetXSize();
ySize = LCD_GetYSize();
Cnt = 0;
x0 = 0;
x1 = xSize - 1;
y0 = 65;
y1 = ySize - 60 - 1;
Color = GUI_GetColor();
BkColor = GUI_GetBkColor();
GUI_SetColor(BkColor);

/* Repeat fill as often as possible in 100 ms */
t0 = GUI_GetTime();
do {
GUI_FillRect(x0, y0, x1, y1);
Cnt++;
t = GUI_GetTime();
} while ((t - (t0 + 100)) <= 0);

/* Compute result */
t -= t0;
PixelCnt = (x1 - x0 + 1) * (y1 - y0 + 1) * Cnt;
PixelsPerSecond = PixelCnt / t * 1000;
GUI_SetColor(Color);
return PixelsPerSecond;
}

/**
* 函数功能: 运行刷屏速度测试程序
* 输入参数: 无
* 返回值: int：每秒像素值
* 说明: 无
*/
int Run_SpeedTest(void) {
int TimeStart, i;
U32 PixelsPerSecond;
unsigned aColorIndex[8];
int xSize, ySize, vySize;
GUI_RECT Rect, ClipRect;
xSize = LCD_GetXSize();
ySize = LCD_GetYSize();
vySize = LCD_GetVYSize();
#if GUI_SUPPORT_CURSOR
GUI_CURSOR_Hide();
#endif
if (vySize > ySize)
{
ClipRect.x0 = 0;
ClipRect.y0 = 0;
ClipRect.x1 = xSize;
ClipRect.y1 = ySize;
GUI_SetClipRect(&ClipRect);
}

Stop_Test = 0;

for (i = 0; i< 8; i++)
{
aColorIndex[i] = GUI_Color2Index(_aColor[i]);
}
TimeStart = GUI_GetTime();
for (i = 0; ((GUI_GetTime() - TimeStart) < 5000) &&( Stop_Test == 0); i++)
{
GUI_SetColorIndex(aColorIndex[i&7]);

/* Calculate random positions */
Rect.x0 = (GUI_GetTime()/(i%25)) % xSize - xSize / 2;
Rect.y0 = (GUI_GetTime()/(i%25)) % ySize - ySize / 2;
Rect.x1 = Rect.x0 + 20 + (GUI_GetTime()/(i%25)) % xSize;
Rect.y1 = Rect.y0 + 20 + (GUI_GetTime()/(i%25)) % ySize;

GUI_FillRect(Rect.x0, Rect.y0, Rect.x1, Rect.y1);

/* Clip rectangle to visible area and add the number of pixels (for speed computation) */
if (Rect.x1 >= xSize)
{
Rect.x1 = xSize - 1;
}

if (Rect.y1 >= ySize)
{
Rect.y1 = ySize - 1;
}

if (Rect.x0 < 0 )
{
Rect.x0 = 0;
}

if (Rect.y1 < 0)
{
Rect.y1 = 0;
}

GUI_Exec();

/* Allow short breaks so we do not use all available CPU time ... */
}
PixelsPerSecond = _GetPixelsPerSecond();
GUI_SetClipRect(NULL);
return PixelsPerSecond;
}

/**
* 函数功能: 刷屏测试函数
* 输入参数: 无
* 返回值: 无
* 说明: 无
*/
void SpeedTest(void)
{
char temp[50]={0};
int cpu_speed = 0;
Stop_Test = 0;
/* 运行刷屏测试函数 */
cpu_speed = Run_SpeedTest();
/* 清屏 */
GUI_Clear();
/* 显示刷屏测试结果 */
sprintf(temp, "%d Pixels/s ", cpu_speed);
GUI_SetColor(GUI_BLUE);
GUI_SetFont(GUI_FONT_32B_ASCII);
GUI_DispStringHCenterAt(temp,LCD_GetXSize()/2,LCD_GetYSize()/2-16);