怎么用红牛开发板的TFT屏显示灰度图？

只看该作者 · 2011-5-26 10:46

怎么用红牛开发板的TFT屏显示灰度图？我写了个程序但是处理后显示的图片乱麻麻的，不是灰度图捏。请大家帮我看一下，感激~~~

/* Includes ------------------------------------------------------------------*/
#include "lcd.h"
#include "stm32f10x_lib.h"
#include "platform_config.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
static vu32 TimingDelay = 0;
GPIO_InitTypeDef GPIO_InitStructure;
ErrorStatus HSEStartUpStatus;
extern unsigned char Image_Table[];
unsigned char Gray_Table[82944];
//unsigned char Gray_Table[27648];
/* Private function prototypes -----------------------------------------------*/
void RCC_Configuration(void);
void InterruptConfig(void);
void NVIC_Configuration(void);
void Delay(vu32 nCount);
void Decrement_TimingDelay(void);
void SysTick_Config(void);

/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name  : main
* Description : Main program.
* Input       : None
* Output       : None
* Return       : None
*******************************************************************************/
int main(void)
{
u32 i;
#ifdef DEBUG
  debug();
#endif
  /* System Clocks Configuration */
  RCC_Configuration();
/* Interrupt Configuration */
  InterruptConfig();
  /* Configure the systick */
  SysTick_Config();
  /* Initialize the LCD */
  STM3210E_LCD_Init();
  /* Clear the LCD */
  LCD_Clear(Black);
  LCD_SetDisplayWindow(00, 00, 239, 319);
  LCD_WriteBMP(48, 64, 144, 192, Image_Table);
  for(i=0;i<100000;i++);

BMPtoGray(Image_Table,Gray_Table);


  LCD_Clear(Black);
  LCD_SetDisplayWindow(00, 00, 239, 319);
  LCD_WriteBMP(48, 64, 144, 192, Gray_Table);
｝



  void BMPtoGray(u8 *bitmap,u8 *graymap)
{
  u32 i;
for(i=0;i<27648;i++)
{
  *graymap=(*bitmap*30+*(bitmap+1)*59+*(bitmap+2)*11)/100;
  *(graymap+1)= *(graymap+2)=*graymap;
  graymap+=3;
  bitmap+=3;

}

}