C++ (Cpp) _ccv_read_jpeg_fd Beispiele

Beispiel #1

Datei: ccv_io.c Projekt: Kanasansoft/ccv

int ccv_read(const char* in, ccv_dense_matrix_t** x, int type)
{
	FILE* fd = 0;
	int ctype = (type & 0xF00) ? CCV_8U | ((type & 0xF00) >> 8) : 0;
	if (type & CCV_IO_ANY_FILE)
	{
		fd = fopen(in, "rb");
		if (!fd)
			return CCV_IO_ERROR;
	}
	if ((type & 0XFF) == CCV_IO_ANY_FILE)
	{
		unsigned char sig[8];
		(void) fread(sig, 1, 8, fd);
		if (memcmp(sig, "\x89\x50\x4e\x47\xd\xa\x1a\xa", 8) == 0)
			type = CCV_IO_PNG_FILE;
		else if (memcmp(sig, "\xff\xd8\xff", 3) == 0)
			type = CCV_IO_JPEG_FILE;
		else if (memcmp(sig, "BM", 2) == 0)
			type = CCV_IO_BMP_FILE;
		else if (memcmp(sig, "CCVBINDM", 8) == 0)
			type = CCV_IO_BINARY_FILE;
		fseek(fd, 0, SEEK_SET);
	}
	switch (type & 0XFF)
	{
#ifdef HAVE_LIBJPEG
		case CCV_IO_JPEG_FILE:
			_ccv_read_jpeg_fd(fd, x, ctype);
			break;
#endif
#ifdef HAVE_LIBPNG
		case CCV_IO_PNG_FILE:
			_ccv_read_png_fd(fd, x, ctype);
			break;
#endif
		case CCV_IO_BMP_FILE:
			_ccv_read_bmp_fd(fd, x, ctype);
			break;
		case CCV_IO_BINARY_FILE:
			_ccv_read_binary_fd(fd, x, ctype);
	}
	if (*x != 0)
		ccv_make_matrix_immutable(*x);
	if (type & CCV_IO_ANY_FILE)
		fclose(fd);
	return CCV_IO_FINAL;
}

Beispiel #2

Datei: ccv_io.c Projekt: gitpan/Image-CCV

static int _ccv_read_and_close_fd(FILE* fd, ccv_dense_matrix_t** x, int type)
{
	int ctype = (type & 0xF00) ? CCV_8U | ((type & 0xF00) >> 8) : 0;
	if ((type & 0XFF) == CCV_IO_ANY_FILE)
	{
		unsigned char sig[8];
		(void) fread(sig, 1, 8, fd);
		if (memcmp(sig, "\x89\x50\x4e\x47\xd\xa\x1a\xa", 8) == 0)
			type = CCV_IO_PNG_FILE;
		else if (memcmp(sig, "\xff\xd8\xff", 3) == 0)
			type = CCV_IO_JPEG_FILE;
		else if (memcmp(sig, "BM", 2) == 0)
			type = CCV_IO_BMP_FILE;
		else if (memcmp(sig, "CCVBINDM", 8) == 0)
			type = CCV_IO_BINARY_FILE;
		else {
			printf("Unknown file signature in '%s'\n", sig);
			exit(1); // XXX make exit/return gracefull later
		};
		fseek(fd, 0, SEEK_SET);
	}
	switch (type & 0XFF)
	{
#ifdef HAVE_LIBJPEG
		case CCV_IO_JPEG_FILE:
			_ccv_read_jpeg_fd(fd, x, ctype);
			break;
#endif
#ifdef HAVE_LIBPNG
		case CCV_IO_PNG_FILE:
			_ccv_read_png_fd(fd, x, ctype);
			break;
#endif
		case CCV_IO_BMP_FILE:
			_ccv_read_bmp_fd(fd, x, ctype);
			break;
		case CCV_IO_BINARY_FILE:
			_ccv_read_binary_fd(fd, x, ctype);
	}
	if (*x != 0)
		ccv_make_matrix_immutable(*x);
	if (type & CCV_IO_ANY_FILE)
		fclose(fd);
	return CCV_IO_FINAL;
}