int main(){
unsigned char buffer[BUF_SIZE] = {0};
unsigned int picSize=0;
unsigned int packNum=0;
unsigned int packSize;
unsigned short int checksum;
unsigned int width, height;
unsigned int i,j;
unsigned char bytes[2];
unsigned char image[160][120];
int fd = serialOpen("/dev/ttyUSB1", 115200);
FILE* filefd = fopen("./image.ppm", "w");
unsigned char* bufptr;
sendShot(fd, RES_160X128);
readImageDetails(fd, &picSize, &packNum);
printf("size: %d\npackets count: %d\n", picSize, packNum);
unsigned char* imgBuffer = (unsigned char*) malloc((picSize+1)*sizeof(unsigned char));
readImage(fd, imgBuffer, picSize, packNum);
serialClose(fd);
njInit();
if (njDecode(imgBuffer, picSize)) {
printf("Error decoding the input file.\n");
return 1;
}
printf("size:\n%d %d\n", njGetWidth(), njGetHeight());
fprintf(filefd, "P%d\n%d %d\n255\n", njIsColor() ? 6 : 5, njGetWidth(), njGetHeight());
width = njGetWidth();
height = njGetHeight();
fwrite(njGetImage(), 1, njGetImageSize(), filefd);
bufptr = njGetImage();
for(i=0;i<width;i++){
for(j=0;j<height;j++){
image[i][j] = (char)((0.21 * (double)bufptr[(i+j*width)*3]) + 0.72 * (double)bufptr[(i+j*width)*3 + 1] + 0.07 * (double)bufptr[(i+j*width)*3 + 2]);
}
}
for(j=0;j<height;j++){
for(i=0;i<width;i++){
if(image[i][j]<63)
printf("@");
else if(image[i][j]<128)
printf("*");
else if(image[i][j]<191)
printf("+");
else
printf("-");
}
printf("\n");
}
fclose(filefd);
njDone();
}
int decodeJpegChannel(char* jpegData, int jpegSize, int channel, unsigned char** channelPixels, int* srcWidth, int* srcHeight) {
int returnCode;
if (channel == 0) { // Decode the red channel
njInit();
returnCode = njDecode(jpegData, jpegSize, 1, 0, 0);
} else if (channel == 1) { // Decode the green channel
njInit();
returnCode = njDecode(jpegData, jpegSize, 0, 1, 0);
} else if (channel == 2) { // Decode the blue channel
njInit();
returnCode = njDecode(jpegData, jpegSize, 0, 0, 1);
}
if (returnCode != 0) {
LOGE("Failed to njDecode()");
njDone();
return returnCode;
}
*srcWidth = njGetWidth();
*srcHeight = njGetHeight();
if (channel == 0) { // Get the red channel pixels
*channelPixels = (unsigned char*)njGetRedImage();
} else if (channel == 1) { // Get the green channel pixels
*channelPixels = (unsigned char*)njGetGreenImage();
} else if (channel == 2) { // Get the blue channel pixels
*channelPixels = (unsigned char*)njGetBlueImage();
}
return MEMORY_OK;
}
uint8 *image_decode_jpg(uint8 *content,int32 bytes,int32 *result,int32 *x,int32 *y){
//Result:bit 1=Success,bit 2=32bit[BGRA]
*result=0;
static int32 init=0;
if (!init){init=1; njInit();}
if (njDecode(content,bytes)) return NULL;
static uint8 *si;
si=(uint8*)njGetImage();
static int32 w,h;
w=njGetWidth();
h=njGetHeight();
static uint8 *di;
if (njIsColor){//RGB
//Create a buffer large enough to store image
if (w*h*3!=njGetImageSize()) return NULL;
di=(uint8*)malloc(w*h*4);
//RGB->BGRA
static int32 c;
c=w*h;
while(c--){
di[c*4+2]=si[c*3 ];//red
di[c*4+1]=si[c*3+1];//green
di[c*4 ]=si[c*3+2];//blue
di[c*4+3]=255; //alpha
}
}else{//Greyscale
//Create a buffer large enough to store image
if (w*h!=njGetImageSize()) return NULL;
di=(uint8*)malloc(w*h*4);
//Greyscale->BGRA
static int32 c;
c=w*h;
while(c--){
di[c*4+2]=si[c];//red
di[c*4+1]=si[c];//green
di[c*4 ]=si[c];//blue
di[c*4+3]=255; //alpha
}
}
*result=1+2;
*x=w;
*y=h;
return di;
}
int main(int argc, char* argv[]) {
int size;
char *buf;
FILE *f;
if (argc < 2) {
printf("Usage: %s <input.jpg> [<output.ppm>]\n", argv[0]);
return 2;
}
f = fopen(argv[1], "rb");
if (!f) {
printf("Error opening the input file.\n");
return 1;
}
fseek(f, 0, SEEK_END);
size = (int) ftell(f);
buf = malloc(size);
fseek(f, 0, SEEK_SET);
size = (int) fread(buf, 1, size, f);
fclose(f);
njInit();
if (njDecode(buf, size)) {
printf("Error decoding the input file.\n");
return 1;
}
f = fopen((argc > 2) ? argv[2] : (njIsColor() ? "nanojpeg_out.ppm" : "nanojpeg_out.pgm"), "wb");
if (!f) {
printf("Error opening the output file.\n");
return 1;
}
fprintf(f, "P%d\n%d %d\n255\n", njIsColor() ? 6 : 5, njGetWidth(), njGetHeight());
fwrite(njGetImage(), 1, njGetImageSize(), f);
fclose(f);
njDone();
return 0;
}
void mainCRTStartup(void) {
char *argv[3], *buf = GetCommandLine();
enum { S_WHITESPACE, S_PARAM, S_QUOTE } state = S_WHITESPACE;
int argc, size, esize;
HANDLE f;
for (argc = 0; (argc < 1022) && buf[argc]; ++argc)
cmdline[argc] = buf[argc];
cmdline[argc] = 0;
for (buf = cmdline, argc = 0; *buf; ++buf) {
switch (state) {
case S_WHITESPACE:
if (buf[0] == 32)
buf[0] = 0;
else {
if (argc >= 3) ExitProcess(2);
if (buf[0] == 34) {
argv[argc++] = buf + 1;
state = S_QUOTE;
} else {
argv[argc++] = buf;
state = S_PARAM;
}
}
break;
case S_PARAM:
if (buf[0] == 32) {
buf[0] = 0;
state = S_WHITESPACE;
} else if (buf[0] == 34) {
argv[argc - 1] = buf + 1;
state = S_QUOTE;
}
break;
case S_QUOTE:
if (buf[0] == 34) {
buf[0] = 0;
state = S_WHITESPACE;
}
break;
}
}
if (argc < 2) ExitProcess(2);
f = CreateFile(argv[1], GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL);
if (f == INVALID_HANDLE_VALUE) ExitProcess(1);
size = (int) SetFilePointer(f, 0, NULL, FILE_END);
buf = LocalAlloc(LMEM_FIXED, size);
if (!buf) ExitProcess(1);
SetFilePointer(f, 0, NULL, FILE_BEGIN);
ReadFile(f, buf, size, (LPDWORD) &esize, NULL);
CloseHandle(f);
njInit();
if (njDecode(buf, esize)) ExitProcess(1);
f = CreateFile((argc > 2) ? argv[2] : (njIsColor() ? "nanojpeg_out.ppm" : "nanojpeg_out.pgm"),
GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, NULL);
if (f == INVALID_HANDLE_VALUE) ExitProcess(1);
if (njIsColor()) header[1] = '6';
putnum(&header[7], njGetWidth());
putnum(&header[13], njGetHeight());
WriteFile(f, header, 19, (LPDWORD) &esize, NULL);
WriteFile(f, njGetImage(), njGetImageSize(), (LPDWORD) &esize, NULL);
njDone();
ExitProcess(0);
}
