wince开机界面的修改方法之一

修改wince开机界面logo

硬件环境：6410 + 3.5寸的屏，

1.图片格式为160*120 真彩色 用bmp2c转换后的图片数组为unsigned short 类型。

首先将图片转换成数组，这里用的工具是bmp2c，将转换后的数组替换wince600->PLATFORM->SDK6410->src>bootloader->eboot ->InitialImage_rgb16_320x240.h中的数组InitialImage_rgb16_320x240[]。

在VS2005里的wince 6.0的工程文件目录下找到wince600->PLATFORM->SDK6410->src ->bootloader->eboot ->main.c下的void InitializeDisplay(void)函数。

将static void InitializeDisplay(void)中的

#if(SMDK6410_LCD_MODULE == LCD_MODULE_HUA350)

memcpy((void *)EBOOT_FRAMEBUFFER_UA_START, (void *)InitialImage_rgb16_320x240, 320*240*2);

#elif (LCD_BPP == 16)

{

int i;

unsigned short *pFB;

pFB = (unsigned short *)EBOOT_FRAMEBUFFER_UA_START;

for (i=0; i<LCD_WIDTH*LCD_HEIGHT; i++)

*pFB++ = 0x0000;//0x001F; // Blue

修改为：

#if(SMDK6410_LCD_MODULE ==LCD_MODULE_QIM350)

//memcpy((void *)EBOOT_FRAMEBUFFER_UA_START, (void *)InitialImage_rgb16_320x240, 320*240*2);

{

int i;

for(i = 0; i < LCD_WIDTH*LCD_HEIGHT/2; i++)

{

PWORD pWord = (PWORD)InitialImage_rgb16_320x240;

PWORD pFrmBuf = (PWORD)EBOOT_FRAMEBUFFER_UA_START;

pFrmBuf[2 * i - 1* (i % LCD_WIDTH)] = pWord[i];

pFrmBuf[2 * i - 1 * (i % LCD_WIDTH) + LCD_WIDTH] = pWord[i]； //图片相当于纵向拉伸了2倍，

//pFrmBuf[4 * i - 2 * (i % 160)] = pWord[i];

//pFrmBuf[4 * i - 2 * (i % 160) + 1] = pWord[i];

//pFrmBuf[4 * i - 2 * (i % 160) + 160 * 2] = pWord[i];

//pFrmBuf[4 * i - 2 * (i % 160) + 1 + 160 * 2] = pWord[i];

}

}

或者拷贝内存块填充显示缓存Framebuffer；

{

int i = 0;

PWORD p = (PWORD)InitialImage_rgb16_320x240;

PWORD dst = (PWORD)EBOOT_FRAMEBUFFER_UA_START;

for (i = 1;i <= LCD_HEIGHT;i++)

{

memcpy(dst, p, LCD_WIDTH*2);

if(i%2 == 0)

p += LCD_WIDTH;

dst += LCD_WIDTH;

}

}

然后编译eboot，下载烧录eboot。

2.图片格式为320*240 真彩色 用bmp2c转换后的图片数组为unsigned short 类型

{

int i;

unsigned int value_temp = 0;

unsigned int *pWord = (unsigned int)InitialImage_rgb16_320x240;

unsigned int *pFrmBuf = (unsigned int)EBOOT_FRAMEBUFFER_UA_START;

for(i = 0; i < LCD_WIDTH*LCD_HEIGHT; i++)

{

value_temp =(pWord[i]<<16) | pWord[i+1];

pFrmBuf[i/2] = value_temp;

i++;

//pFrmBuf[i] = pWord[i];

}

}

3，图片格式为320*240 真彩色 用Image2Lcd转换数组为unsiged char类型

// 图片数组为unsiged char类型，指向图片数组InitialImage_rgb16_320x240的指针pWord 为unsigned int类型，

// 从内存里取值是按int类型取值的，相当于取了4个char类型的值，而存放char类型数组是整块空间

{

int i;

unsigned int value_temp = 0;

unsigned int *pWord = (unsigned int)InitialImage_rgb16_320x240;

unsigned int *pFrmBuf = (unsigned int)EBOOT_FRAMEBUFFER_UA_START;

for(i = 0; i <LCD_WIDTH*LCD_HEIGHT ; i++)

{

// value_temp =(pWord[i]<<16) | (pWord[i+1]);

// pFrmBuf[i/2] = value_temp;

// i++;

pFrmBuf[i] = pWord[i];

}

}

或者直接拷贝内存分配给图片数组的数据

memcpy((void *)EBOOT_FRAMEBUFFER_UA_START, (void *)InitialImage_rgb16_320x240, 320*240*2);

总结：第1种和第二种方法效果不太好，因为涉及图片缩放，第三种效果比较满意，建议采取第三种方法。
http://blog.sina.com.cn/s/blog_7c42ed990100y75t.html