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Diffstat (limited to 'plug-ins/twain/tw_util.c')
| -rw-r--r-- | plug-ins/twain/tw_util.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/plug-ins/twain/tw_util.c b/plug-ins/twain/tw_util.c new file mode 100644 index 0000000..f02109b --- /dev/null +++ b/plug-ins/twain/tw_util.c @@ -0,0 +1,170 @@ +/* + * TWAIN Plug-in + * Copyright (C) 1999 Craig Setera + * Craig Setera <setera@home.com> + * 03/31/1999 + * + * Updated for Mac OS X support + * Brion Vibber <brion@pobox.com> + * 07/22/2004 + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + * + * + * Based on (at least) the following plug-ins: + * Screenshot + * GIF + * Randomize + * + * Any suggestions, bug-reports or patches are welcome. + * + * This plug-in interfaces to the TWAIN support library in order + * to capture images from TWAIN devices directly into GIMP images. + * The plug-in is capable of acquiring the following type of + * images: + * - B/W (1 bit images translated to grayscale B/W) + * - Grayscale up to 16 bits per pixel + * - RGB up to 16 bits per sample (24, 30, 36, etc.) + * - Paletted images (both Gray and RGB) + * + * Prerequisites: + * Should compile and run on both Win32 and Mac OS X 10.3 (possibly + * also on 10.2). + * + * Known problems: + * - Multiple image transfers will hang the plug-in. The current + * configuration compiles with a maximum of single image transfers. + * - On Mac OS X, canceling doesn't always close things out fully. + * - Epson TWAIN driver on Mac OS X crashes the plugin when scanning. + */ + +/* + * Revision history + * (02/07/99) v0.1 First working version (internal) + * (02/09/99) v0.2 First release to anyone other than myself + * (02/15/99) v0.3 Added image dump and read support for debugging + * (03/31/99) v0.5 Added support for multi-byte samples and paletted + * images. + * (07/23/04) v0.6 Added Mac OS X support. + */ + +#include "config.h" + +#include <glib.h> /* Needed when compiling with gcc */ + +#include <glib/gstdio.h> + +#include <stdarg.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> + +#include "tw_util.h" +#ifdef _DEBUG +#include "tw_func.h" +FILE *logFile = NULL; +#endif + +#ifdef _DEBUG + +/* + * LogMessage + */ +void +LogMessage(char *format, ...) +{ + va_list args; + time_t time_of_day; + char *ctime_string; + + /* Open the log file as necessary */ + if (!logFile) + logFile = g_fopen(DEBUG_LOGFILE, "w"); + + time_of_day = time(NULL); + ctime_string = ctime(&time_of_day); + ctime_string[19] = '\0'; + + fprintf(logFile, "[%s] ", (ctime_string + 11)); + va_start(args, format); + vfprintf(logFile, format, args); + fflush(logFile); + va_end(args); +} + +void +logBegin(pTW_IMAGEINFO imageInfo, void *clientData) +{ + int i; + char buffer[256]; + + LogMessage("\n"); + LogMessage("*************************************\n"); + LogMessage("\n"); + LogMessage("Image transfer begin:\n"); + /* LogMessage("\tClient data: %s\n", (char *) clientData); */ + + /* Log the image information */ + LogMessage("Image information:\n"); + LogMessage("\tXResolution: %f\n", FIX32ToFloat(imageInfo->XResolution)); + LogMessage("\tYResolution: %f\n", FIX32ToFloat(imageInfo->YResolution)); + LogMessage("\tImageWidth: %d\n", imageInfo->ImageWidth); + LogMessage("\tImageLength: %d\n", imageInfo->ImageLength); + LogMessage("\tSamplesPerPixel: %d\n", imageInfo->SamplesPerPixel); + sprintf(buffer, "\tBitsPerSample: {"); + for (i = 0; i < 8; i++) { + if (imageInfo->BitsPerSample[i]) + strcat(buffer, "1"); + else + strcat(buffer, "0"); + + if (i != 7) + strcat(buffer, ","); + } + LogMessage("%s}\n", buffer); + + LogMessage("\tBitsPerPixel: %d\n", imageInfo->BitsPerPixel); + LogMessage("\tPlanar: %s\n", (imageInfo->Planar ? "TRUE" : "FALSE")); + LogMessage("\tPixelType: %d\n", imageInfo->PixelType); + /* Compression */ + +} + +void +logData(pTW_IMAGEINFO imageInfo, + pTW_IMAGEMEMXFER imageMemXfer, + void *clientData) +{ + LogMessage("Image transfer callback called:\n"); + LogMessage("\tClient data: %s\n", (char *) clientData); + LogMessage("Memory block transferred:\n"); + LogMessage("\tBytesPerRow = %d\n", imageMemXfer->BytesPerRow); + LogMessage("\tColumns = %d\n", imageMemXfer->Columns); + LogMessage("\tRows = %d\n", imageMemXfer->Rows); + LogMessage("\tXOffset = %d\n", imageMemXfer->XOffset); + LogMessage("\tYOffset = %d\n", imageMemXfer->YOffset); + LogMessage("\tBytesWritten = %d\n", imageMemXfer->BytesWritten); +} + +#else + +/* + * LogMessage + */ +void +LogMessage(char *format, ...) +{ +} + +#endif /* DEBUG */ |