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Renamed.
This commit is contained in:
Roger E. Masse
parent
c357325663
commit
7f33e403a4
1 changed files with 430 additions and 404 deletions
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@ -40,11 +40,9 @@ PERFORMANCE OF THIS SOFTWARE.
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** Warning: this module is very non-reentrant (esp. the readscaled stuff)
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*/
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#include "allobjects.h"
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#include "modsupport.h"
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#include "Python.h"
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#include <gl/image.h>
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#include <errno.h>
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#include "/usr/people/4Dgifts/iristools/include/izoom.h"
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@ -55,7 +53,7 @@ extern void filterzoom();
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extern void putrow();
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extern void getrow();
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static object * ImgfileError; /* Exception we raise for various trouble */
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static PyObject * ImgfileError; /* Exception we raise for various trouble */
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static int top_to_bottom; /* True if we want top-to-bottom images */
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@ -70,11 +68,11 @@ static int error_called;
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static void
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imgfile_error(str)
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char *str;
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char *str;
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{
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err_setstr(ImgfileError, str);
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error_called = 1;
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return; /* To imglib, which will return a failure indicator */
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PyErr_SetString(ImgfileError, str);
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error_called = 1;
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return; /* To imglib, which will return a failure indicator */
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}
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@ -83,124 +81,129 @@ imgfile_error(str)
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static IMAGE *
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imgfile_open(fname)
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char *fname;
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char *fname;
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{
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IMAGE *image;
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i_seterror(imgfile_error);
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error_called = 0;
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errno = 0;
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if ( (image = iopen(fname, "r")) == NULL ) {
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/* Error may already be set by imgfile_error */
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if ( !error_called ) {
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if (errno)
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err_errno(ImgfileError);
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else
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err_setstr(ImgfileError, "Can't open image file");
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}
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return NULL;
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}
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return image;
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}
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static object *
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imgfile_ttob(self, args)
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object *self;
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object *args;
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{
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int newval;
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object *rv;
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if (!getargs(args, "i", &newval))
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return NULL;
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rv = newintobject(top_to_bottom);
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top_to_bottom = newval;
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return rv;
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}
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static object *
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imgfile_read(self, args)
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object *self;
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object *args;
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{
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char *fname;
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object *rv;
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int xsize, ysize, zsize;
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char *cdatap;
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long *idatap;
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static short rs[8192], gs[8192], bs[8192];
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int x, y;
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IMAGE *image;
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int yfirst, ylast, ystep;
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if ( !getargs(args, "s", &fname) )
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return NULL;
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if ( (image = imgfile_open(fname)) == NULL )
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return NULL;
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if ( image->colormap != CM_NORMAL ) {
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iclose(image);
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err_setstr(ImgfileError, "Can only handle CM_NORMAL images");
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return NULL;
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}
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if ( BPP(image->type) != 1 ) {
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iclose(image);
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err_setstr(ImgfileError, "Can't handle imgfiles with bpp!=1");
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return NULL;
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}
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xsize = image->xsize;
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ysize = image->ysize;
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zsize = image->zsize;
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if ( zsize != 1 && zsize != 3) {
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iclose(image);
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err_setstr(ImgfileError, "Can only handle 1 or 3 byte pixels");
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return NULL;
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}
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if ( xsize > 8192 ) {
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iclose(image);
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err_setstr(ImgfileError, "Can't handle image with > 8192 columns");
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return NULL;
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}
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if ( zsize == 3 ) zsize = 4;
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rv = newsizedstringobject((char *)NULL, xsize*ysize*zsize);
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if ( rv == NULL ) {
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iclose(image);
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return NULL;
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}
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cdatap = getstringvalue(rv);
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idatap = (long *)cdatap;
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if (top_to_bottom) {
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yfirst = ysize-1;
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ylast = -1;
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ystep = -1;
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} else {
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yfirst = 0;
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ylast = ysize;
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ystep = 1;
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}
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for ( y=yfirst; y != ylast && !error_called; y += ystep ) {
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if ( zsize == 1 ) {
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getrow(image, rs, y, 0);
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for(x=0; x<xsize; x++ )
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*cdatap++ = rs[x];
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} else {
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getrow(image, rs, y, 0);
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getrow(image, gs, y, 1);
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getrow(image, bs, y, 2);
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for(x=0; x<xsize; x++ )
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*idatap++ = (rs[x] & 0xff) |
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((gs[x] & 0xff)<<8) |
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((bs[x] & 0xff)<<16);
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IMAGE *image;
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i_seterror(imgfile_error);
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error_called = 0;
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errno = 0;
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if ( (image = iopen(fname, "r")) == NULL ) {
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/* Error may already be set by imgfile_error */
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if ( !error_called ) {
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if (errno)
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PyErr_SetFromErrno(ImgfileError);
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else
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PyErr_SetString(ImgfileError,
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"Can't open image file");
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}
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return NULL;
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}
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}
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iclose(image);
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if ( error_called ) {
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DECREF(rv);
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return NULL;
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}
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return rv;
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return image;
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}
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static PyObject *
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imgfile_ttob(self, args)
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PyObject *self;
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PyObject *args;
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{
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int newval;
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PyObject *rv;
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if (!PyArg_Parse(args, "i", &newval))
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return NULL;
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rv = PyInt_FromLong(top_to_bottom);
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top_to_bottom = newval;
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return rv;
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}
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static PyObject *
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imgfile_read(self, args)
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PyObject *self;
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PyObject *args;
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{
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char *fname;
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PyObject *rv;
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int xsize, ysize, zsize;
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char *cdatap;
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long *idatap;
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static short rs[8192], gs[8192], bs[8192];
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int x, y;
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IMAGE *image;
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int yfirst, ylast, ystep;
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if ( !PyArg_Parse(args, "s", &fname) )
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return NULL;
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if ( (image = imgfile_open(fname)) == NULL )
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return NULL;
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if ( image->colormap != CM_NORMAL ) {
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iclose(image);
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PyErr_SetString(ImgfileError,
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"Can only handle CM_NORMAL images");
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return NULL;
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}
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if ( BPP(image->type) != 1 ) {
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iclose(image);
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PyErr_SetString(ImgfileError,
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"Can't handle imgfiles with bpp!=1");
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return NULL;
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}
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xsize = image->xsize;
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ysize = image->ysize;
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zsize = image->zsize;
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if ( zsize != 1 && zsize != 3) {
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iclose(image);
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PyErr_SetString(ImgfileError,
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"Can only handle 1 or 3 byte pixels");
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return NULL;
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}
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if ( xsize > 8192 ) {
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iclose(image);
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PyErr_SetString(ImgfileError,
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"Can't handle image with > 8192 columns");
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return NULL;
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}
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if ( zsize == 3 ) zsize = 4;
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rv = PyString_FromStringAndSize((char *)NULL, xsize*ysize*zsize);
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if ( rv == NULL ) {
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iclose(image);
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return NULL;
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}
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cdatap = PyString_AsString(rv);
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idatap = (long *)cdatap;
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if (top_to_bottom) {
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yfirst = ysize-1;
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ylast = -1;
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ystep = -1;
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} else {
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yfirst = 0;
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ylast = ysize;
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ystep = 1;
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}
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for ( y=yfirst; y != ylast && !error_called; y += ystep ) {
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if ( zsize == 1 ) {
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getrow(image, rs, y, 0);
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for(x=0; x<xsize; x++ )
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*cdatap++ = rs[x];
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} else {
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getrow(image, rs, y, 0);
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getrow(image, gs, y, 1);
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getrow(image, bs, y, 2);
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for(x=0; x<xsize; x++ )
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*idatap++ = (rs[x] & 0xff) |
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((gs[x] & 0xff)<<8) |
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((bs[x] & 0xff)<<16);
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}
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}
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iclose(image);
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if ( error_called ) {
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Py_DECREF(rv);
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return NULL;
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}
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return rv;
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}
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static IMAGE *glob_image;
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@ -209,334 +212,357 @@ static int glob_width, glob_z, glob_ysize;
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static void
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xs_get(buf, y)
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short *buf;
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int y;
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short *buf;
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int y;
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{
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if (top_to_bottom)
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getrow(glob_image, buf, (glob_ysize-1-y), glob_z);
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else
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getrow(glob_image, buf, y, glob_z);
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if (top_to_bottom)
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getrow(glob_image, buf, (glob_ysize-1-y), glob_z);
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else
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getrow(glob_image, buf, y, glob_z);
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}
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static void
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xs_put_c(buf, y)
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short *buf;
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int y;
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short *buf;
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int y;
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{
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char *datap = (char *)glob_datap + y*glob_width;
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int width = glob_width;
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char *datap = (char *)glob_datap + y*glob_width;
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int width = glob_width;
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while ( width-- )
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*datap++ = (*buf++) & 0xff;
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while ( width-- )
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*datap++ = (*buf++) & 0xff;
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}
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static void
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xs_put_0(buf, y)
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short *buf;
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int y;
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short *buf;
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int y;
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{
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long *datap = glob_datap + y*glob_width;
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int width = glob_width;
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long *datap = glob_datap + y*glob_width;
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int width = glob_width;
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while ( width-- )
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*datap++ = (*buf++) & 0xff;
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while ( width-- )
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*datap++ = (*buf++) & 0xff;
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}
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static void
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xs_put_12(buf, y)
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short *buf;
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int y;
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short *buf;
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int y;
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{
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long *datap = glob_datap + y*glob_width;
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int width = glob_width;
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long *datap = glob_datap + y*glob_width;
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int width = glob_width;
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while ( width-- )
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*datap++ |= ((*buf++) & 0xff) << (glob_z*8);
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while ( width-- )
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*datap++ |= ((*buf++) & 0xff) << (glob_z*8);
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}
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static void
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xscale(image, xsize, ysize, zsize, datap, xnew, ynew, fmode, blur)
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IMAGE *image;
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int xsize, ysize, zsize;
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long *datap;
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int xnew, ynew;
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int fmode;
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double blur;
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IMAGE *image;
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int xsize, ysize, zsize;
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long *datap;
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int xnew, ynew;
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int fmode;
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double blur;
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{
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glob_image = image;
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glob_datap = datap;
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glob_width = xnew;
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glob_ysize = ysize;
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if ( zsize == 1 ) {
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glob_z = 0;
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filterzoom(xs_get, xs_put_c, xsize, ysize, xnew, ynew, fmode, blur);
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} else {
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glob_z = 0;
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filterzoom(xs_get, xs_put_0, xsize, ysize, xnew, ynew, fmode, blur);
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glob_z = 1;
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filterzoom(xs_get, xs_put_12, xsize, ysize, xnew, ynew, fmode, blur);
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glob_z = 2;
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filterzoom(xs_get, xs_put_12, xsize, ysize, xnew, ynew, fmode, blur);
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}
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glob_image = image;
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glob_datap = datap;
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glob_width = xnew;
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glob_ysize = ysize;
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if ( zsize == 1 ) {
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glob_z = 0;
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filterzoom(xs_get, xs_put_c, xsize, ysize,
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xnew, ynew, fmode, blur);
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} else {
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glob_z = 0;
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filterzoom(xs_get, xs_put_0, xsize, ysize,
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xnew, ynew, fmode, blur);
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glob_z = 1;
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filterzoom(xs_get, xs_put_12, xsize, ysize,
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xnew, ynew, fmode, blur);
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glob_z = 2;
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filterzoom(xs_get, xs_put_12, xsize, ysize,
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xnew, ynew, fmode, blur);
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}
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}
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static object *
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static PyObject *
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imgfile_readscaled(self, args)
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object *self;
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object *args;
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PyObject *self;
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PyObject *args;
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{
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char *fname;
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object *rv;
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int xsize, ysize, zsize;
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char *cdatap;
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long *idatap;
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static short rs[8192], gs[8192], bs[8192];
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int x, y;
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int xwtd, ywtd, xorig, yorig;
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float xfac, yfac;
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int cnt;
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IMAGE *image;
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char *filter;
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double blur;
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int extended;
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int fmode = 0;
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int yfirst, ylast, ystep;
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char *fname;
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PyObject *rv;
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int xsize, ysize, zsize;
|
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char *cdatap;
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long *idatap;
|
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static short rs[8192], gs[8192], bs[8192];
|
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int x, y;
|
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int xwtd, ywtd, xorig, yorig;
|
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float xfac, yfac;
|
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int cnt;
|
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IMAGE *image;
|
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char *filter;
|
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double blur;
|
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int extended;
|
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int fmode = 0;
|
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int yfirst, ylast, ystep;
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|
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/*
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** Parse args. Funny, since arg 4 and 5 are optional
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** (filter name and blur factor). Also, 4 or 5 arguments indicates
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** extended scale algorithm in stead of simple-minded pixel drop/dup.
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*/
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extended = 0;
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cnt = gettuplesize(args);
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if ( cnt == 5 ) {
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extended = 1;
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if ( !getargs(args, "(siisd)", &fname, &xwtd, &ywtd, &filter, &blur) )
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return NULL;
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} else if ( cnt == 4 ) {
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extended = 1;
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if ( !getargs(args, "(siis)", &fname, &xwtd, &ywtd, &filter) )
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return NULL;
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blur = 1.0;
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} else if ( !getargs(args, "(sii)", &fname, &xwtd, &ywtd) )
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return NULL;
|
||||
/*
|
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** Parse args. Funny, since arg 4 and 5 are optional
|
||||
** (filter name and blur factor). Also, 4 or 5 arguments indicates
|
||||
** extended scale algorithm in stead of simple-minded pixel drop/dup.
|
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*/
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extended = 0;
|
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cnt = PyTuple_Size(args);
|
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if ( cnt == 5 ) {
|
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extended = 1;
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if ( !PyArg_Parse(args, "(siisd)",
|
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&fname, &xwtd, &ywtd, &filter, &blur) )
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return NULL;
|
||||
} else if ( cnt == 4 ) {
|
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extended = 1;
|
||||
if ( !PyArg_Parse(args, "(siis)",
|
||||
&fname, &xwtd, &ywtd, &filter) )
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return NULL;
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||||
blur = 1.0;
|
||||
} else if ( !PyArg_Parse(args, "(sii)", &fname, &xwtd, &ywtd) )
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||||
return NULL;
|
||||
|
||||
/*
|
||||
** Check parameters, open file and check type, rows, etc.
|
||||
*/
|
||||
if ( extended ) {
|
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if ( strcmp(filter, "impulse") == 0 ) fmode = IMPULSE;
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else if ( strcmp( filter, "box") == 0 ) fmode = BOX;
|
||||
else if ( strcmp( filter, "triangle") == 0 ) fmode = TRIANGLE;
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else if ( strcmp( filter, "quadratic") == 0 ) fmode = QUADRATIC;
|
||||
else if ( strcmp( filter, "gaussian") == 0 ) fmode = GAUSSIAN;
|
||||
else {
|
||||
err_setstr(ImgfileError, "Unknown filter type");
|
||||
return NULL;
|
||||
/*
|
||||
** Check parameters, open file and check type, rows, etc.
|
||||
*/
|
||||
if ( extended ) {
|
||||
if ( strcmp(filter, "impulse") == 0 )
|
||||
fmode = IMPULSE;
|
||||
else if ( strcmp( filter, "box") == 0 )
|
||||
fmode = BOX;
|
||||
else if ( strcmp( filter, "triangle") == 0 )
|
||||
fmode = TRIANGLE;
|
||||
else if ( strcmp( filter, "quadratic") == 0 )
|
||||
fmode = QUADRATIC;
|
||||
else if ( strcmp( filter, "gaussian") == 0 )
|
||||
fmode = GAUSSIAN;
|
||||
else {
|
||||
PyErr_SetString(ImgfileError, "Unknown filter type");
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if ( (image = imgfile_open(fname)) == NULL )
|
||||
return NULL;
|
||||
if ( (image = imgfile_open(fname)) == NULL )
|
||||
return NULL;
|
||||
|
||||
if ( image->colormap != CM_NORMAL ) {
|
||||
iclose(image);
|
||||
err_setstr(ImgfileError, "Can only handle CM_NORMAL images");
|
||||
return NULL;
|
||||
}
|
||||
if ( BPP(image->type) != 1 ) {
|
||||
iclose(image);
|
||||
err_setstr(ImgfileError, "Can't handle imgfiles with bpp!=1");
|
||||
return NULL;
|
||||
}
|
||||
xsize = image->xsize;
|
||||
ysize = image->ysize;
|
||||
zsize = image->zsize;
|
||||
if ( zsize != 1 && zsize != 3) {
|
||||
iclose(image);
|
||||
err_setstr(ImgfileError, "Can only handle 1 or 3 byte pixels");
|
||||
return NULL;
|
||||
}
|
||||
if ( xsize > 8192 ) {
|
||||
iclose(image);
|
||||
err_setstr(ImgfileError, "Can't handle image with > 8192 columns");
|
||||
return NULL;
|
||||
}
|
||||
if ( image->colormap != CM_NORMAL ) {
|
||||
iclose(image);
|
||||
PyErr_SetString(ImgfileError,
|
||||
"Can only handle CM_NORMAL images");
|
||||
return NULL;
|
||||
}
|
||||
if ( BPP(image->type) != 1 ) {
|
||||
iclose(image);
|
||||
PyErr_SetString(ImgfileError,
|
||||
"Can't handle imgfiles with bpp!=1");
|
||||
return NULL;
|
||||
}
|
||||
xsize = image->xsize;
|
||||
ysize = image->ysize;
|
||||
zsize = image->zsize;
|
||||
if ( zsize != 1 && zsize != 3) {
|
||||
iclose(image);
|
||||
PyErr_SetString(ImgfileError,
|
||||
"Can only handle 1 or 3 byte pixels");
|
||||
return NULL;
|
||||
}
|
||||
if ( xsize > 8192 ) {
|
||||
iclose(image);
|
||||
PyErr_SetString(ImgfileError,
|
||||
"Can't handle image with > 8192 columns");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if ( zsize == 3 ) zsize = 4;
|
||||
rv = newsizedstringobject(NULL, xwtd*ywtd*zsize);
|
||||
if ( rv == NULL ) {
|
||||
iclose(image);
|
||||
return NULL;
|
||||
}
|
||||
xfac = (float)xsize/(float)xwtd;
|
||||
yfac = (float)ysize/(float)ywtd;
|
||||
cdatap = getstringvalue(rv);
|
||||
idatap = (long *)cdatap;
|
||||
if ( zsize == 3 ) zsize = 4;
|
||||
rv = PyString_FromStringAndSize(NULL, xwtd*ywtd*zsize);
|
||||
if ( rv == NULL ) {
|
||||
iclose(image);
|
||||
return NULL;
|
||||
}
|
||||
xfac = (float)xsize/(float)xwtd;
|
||||
yfac = (float)ysize/(float)ywtd;
|
||||
cdatap = PyString_AsString(rv);
|
||||
idatap = (long *)cdatap;
|
||||
|
||||
if ( extended ) {
|
||||
xscale(image, xsize, ysize, zsize, idatap, xwtd, ywtd, fmode, blur);
|
||||
} else {
|
||||
if (top_to_bottom) {
|
||||
yfirst = ywtd-1;
|
||||
ylast = -1;
|
||||
ystep = -1;
|
||||
if ( extended ) {
|
||||
xscale(image, xsize, ysize, zsize,
|
||||
idatap, xwtd, ywtd, fmode, blur);
|
||||
} else {
|
||||
yfirst = 0;
|
||||
ylast = ywtd;
|
||||
ystep = 1;
|
||||
if (top_to_bottom) {
|
||||
yfirst = ywtd-1;
|
||||
ylast = -1;
|
||||
ystep = -1;
|
||||
} else {
|
||||
yfirst = 0;
|
||||
ylast = ywtd;
|
||||
ystep = 1;
|
||||
}
|
||||
for ( y=yfirst; y != ylast && !error_called; y += ystep ) {
|
||||
yorig = (int)(y*yfac);
|
||||
if ( zsize == 1 ) {
|
||||
getrow(image, rs, yorig, 0);
|
||||
for(x=0; x<xwtd; x++ ) {
|
||||
*cdatap++ = rs[(int)(x*xfac)];
|
||||
}
|
||||
} else {
|
||||
getrow(image, rs, yorig, 0);
|
||||
getrow(image, gs, yorig, 1);
|
||||
getrow(image, bs, yorig, 2);
|
||||
for(x=0; x<xwtd; x++ ) {
|
||||
xorig = (int)(x*xfac);
|
||||
*idatap++ = (rs[xorig] & 0xff) |
|
||||
((gs[xorig] & 0xff)<<8) |
|
||||
((bs[xorig] & 0xff)<<16);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
iclose(image);
|
||||
if ( error_called ) {
|
||||
Py_DECREF(rv);
|
||||
return NULL;
|
||||
}
|
||||
return rv;
|
||||
}
|
||||
|
||||
static PyObject *
|
||||
imgfile_getsizes(self, args)
|
||||
PyObject *self;
|
||||
PyObject *args;
|
||||
{
|
||||
char *fname;
|
||||
PyObject *rv;
|
||||
IMAGE *image;
|
||||
|
||||
if ( !PyArg_Parse(args, "s", &fname) )
|
||||
return NULL;
|
||||
|
||||
if ( (image = imgfile_open(fname)) == NULL )
|
||||
return NULL;
|
||||
rv = Py_BuildValue("(iii)", image->xsize, image->ysize, image->zsize);
|
||||
iclose(image);
|
||||
return rv;
|
||||
}
|
||||
|
||||
static PyObject *
|
||||
imgfile_write(self, args)
|
||||
PyObject *self;
|
||||
PyObject *args;
|
||||
{
|
||||
IMAGE *image;
|
||||
char *fname;
|
||||
int xsize, ysize, zsize, len;
|
||||
char *cdatap;
|
||||
long *idatap;
|
||||
short rs[8192], gs[8192], bs[8192];
|
||||
short r, g, b;
|
||||
long rgb;
|
||||
int x, y;
|
||||
int yfirst, ylast, ystep;
|
||||
|
||||
|
||||
if ( !PyArg_Parse(args, "(ss#iii)",
|
||||
&fname, &cdatap, &len, &xsize, &ysize, &zsize) )
|
||||
return NULL;
|
||||
|
||||
if ( zsize != 1 && zsize != 3 ) {
|
||||
PyErr_SetString(ImgfileError,
|
||||
"Can only handle 1 or 3 byte pixels");
|
||||
return NULL;
|
||||
}
|
||||
if ( len != xsize * ysize * (zsize == 1 ? 1 : 4) ) {
|
||||
PyErr_SetString(ImgfileError, "Data does not match sizes");
|
||||
return NULL;
|
||||
}
|
||||
if ( xsize > 8192 ) {
|
||||
PyErr_SetString(ImgfileError,
|
||||
"Can't handle image with > 8192 columns");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
error_called = 0;
|
||||
errno = 0;
|
||||
image =iopen(fname, "w", RLE(1), 3, xsize, ysize, zsize);
|
||||
if ( image == 0 ) {
|
||||
if ( ! error_called ) {
|
||||
if (errno)
|
||||
PyErr_SetFromErrno(ImgfileError);
|
||||
else
|
||||
PyErr_SetString(ImgfileError,
|
||||
"Can't create image file");
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
idatap = (long *)cdatap;
|
||||
|
||||
if (top_to_bottom) {
|
||||
yfirst = ysize-1;
|
||||
ylast = -1;
|
||||
ystep = -1;
|
||||
} else {
|
||||
yfirst = 0;
|
||||
ylast = ysize;
|
||||
ystep = 1;
|
||||
}
|
||||
for ( y=yfirst; y != ylast && !error_called; y += ystep ) {
|
||||
yorig = (int)(y*yfac);
|
||||
if ( zsize == 1 ) {
|
||||
getrow(image, rs, yorig, 0);
|
||||
for(x=0; x<xwtd; x++ ) {
|
||||
*cdatap++ = rs[(int)(x*xfac)];
|
||||
if ( zsize == 1 ) {
|
||||
for( x=0; x<xsize; x++ )
|
||||
rs[x] = *cdatap++;
|
||||
putrow(image, rs, y, 0);
|
||||
} else {
|
||||
for( x=0; x<xsize; x++ ) {
|
||||
rgb = *idatap++;
|
||||
r = rgb & 0xff;
|
||||
g = (rgb >> 8 ) & 0xff;
|
||||
b = (rgb >> 16 ) & 0xff;
|
||||
rs[x] = r;
|
||||
gs[x] = g;
|
||||
bs[x] = b;
|
||||
}
|
||||
putrow(image, rs, y, 0);
|
||||
putrow(image, gs, y, 1);
|
||||
putrow(image, bs, y, 2);
|
||||
}
|
||||
} else {
|
||||
getrow(image, rs, yorig, 0);
|
||||
getrow(image, gs, yorig, 1);
|
||||
getrow(image, bs, yorig, 2);
|
||||
for(x=0; x<xwtd; x++ ) {
|
||||
xorig = (int)(x*xfac);
|
||||
*idatap++ = (rs[xorig] & 0xff) |
|
||||
((gs[xorig] & 0xff)<<8) |
|
||||
((bs[xorig] & 0xff)<<16);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
iclose(image);
|
||||
if ( error_called ) {
|
||||
DECREF(rv);
|
||||
return NULL;
|
||||
}
|
||||
return rv;
|
||||
}
|
||||
|
||||
static object *
|
||||
imgfile_getsizes(self, args)
|
||||
object *self;
|
||||
object *args;
|
||||
{
|
||||
char *fname;
|
||||
object *rv;
|
||||
IMAGE *image;
|
||||
|
||||
if ( !getargs(args, "s", &fname) )
|
||||
return NULL;
|
||||
|
||||
if ( (image = imgfile_open(fname)) == NULL )
|
||||
return NULL;
|
||||
rv = mkvalue("(iii)", image->xsize, image->ysize, image->zsize);
|
||||
iclose(image);
|
||||
return rv;
|
||||
}
|
||||
|
||||
static object *
|
||||
imgfile_write(self, args)
|
||||
object *self;
|
||||
object *args;
|
||||
{
|
||||
IMAGE *image;
|
||||
char *fname;
|
||||
int xsize, ysize, zsize, len;
|
||||
char *cdatap;
|
||||
long *idatap;
|
||||
short rs[8192], gs[8192], bs[8192];
|
||||
short r, g, b;
|
||||
long rgb;
|
||||
int x, y;
|
||||
int yfirst, ylast, ystep;
|
||||
|
||||
|
||||
if ( !getargs(args, "(ss#iii)",
|
||||
&fname, &cdatap, &len, &xsize, &ysize, &zsize) )
|
||||
return NULL;
|
||||
|
||||
if ( zsize != 1 && zsize != 3 ) {
|
||||
err_setstr(ImgfileError, "Can only handle 1 or 3 byte pixels");
|
||||
return NULL;
|
||||
}
|
||||
if ( len != xsize * ysize * (zsize == 1 ? 1 : 4) ) {
|
||||
err_setstr(ImgfileError, "Data does not match sizes");
|
||||
return NULL;
|
||||
}
|
||||
if ( xsize > 8192 ) {
|
||||
err_setstr(ImgfileError, "Can't handle image with > 8192 columns");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
error_called = 0;
|
||||
errno = 0;
|
||||
image =iopen(fname, "w", RLE(1), 3, xsize, ysize, zsize);
|
||||
if ( image == 0 ) {
|
||||
if ( ! error_called ) {
|
||||
if (errno)
|
||||
err_errno(ImgfileError);
|
||||
else
|
||||
err_setstr(ImgfileError, "Can't create image file");
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
idatap = (long *)cdatap;
|
||||
|
||||
if (top_to_bottom) {
|
||||
yfirst = ysize-1;
|
||||
ylast = -1;
|
||||
ystep = -1;
|
||||
} else {
|
||||
yfirst = 0;
|
||||
ylast = ysize;
|
||||
ystep = 1;
|
||||
}
|
||||
for ( y=yfirst; y != ylast && !error_called; y += ystep ) {
|
||||
if ( zsize == 1 ) {
|
||||
for( x=0; x<xsize; x++ )
|
||||
rs[x] = *cdatap++;
|
||||
putrow(image, rs, y, 0);
|
||||
} else {
|
||||
for( x=0; x<xsize; x++ ) {
|
||||
rgb = *idatap++;
|
||||
r = rgb & 0xff;
|
||||
g = (rgb >> 8 ) & 0xff;
|
||||
b = (rgb >> 16 ) & 0xff;
|
||||
rs[x] = r;
|
||||
gs[x] = g;
|
||||
bs[x] = b;
|
||||
}
|
||||
putrow(image, rs, y, 0);
|
||||
putrow(image, gs, y, 1);
|
||||
putrow(image, bs, y, 2);
|
||||
}
|
||||
}
|
||||
iclose(image);
|
||||
if ( error_called )
|
||||
return NULL;
|
||||
INCREF(None);
|
||||
return None;
|
||||
iclose(image);
|
||||
if ( error_called )
|
||||
return NULL;
|
||||
Py_INCREF(Py_None);
|
||||
return Py_None;
|
||||
|
||||
}
|
||||
|
||||
|
||||
static struct methodlist imgfile_methods[] = {
|
||||
{ "getsizes", imgfile_getsizes },
|
||||
{ "read", imgfile_read },
|
||||
{ "readscaled", imgfile_readscaled, 1},
|
||||
{ "write", imgfile_write },
|
||||
{ "ttob", imgfile_ttob },
|
||||
{ NULL, NULL } /* Sentinel */
|
||||
static PyMethodDef imgfile_methods[] = {
|
||||
{ "getsizes", imgfile_getsizes },
|
||||
{ "read", imgfile_read },
|
||||
{ "readscaled", imgfile_readscaled, 1},
|
||||
{ "write", imgfile_write },
|
||||
{ "ttob", imgfile_ttob },
|
||||
{ NULL, NULL } /* Sentinel */
|
||||
};
|
||||
|
||||
|
||||
void
|
||||
initimgfile()
|
||||
{
|
||||
object *m, *d;
|
||||
m = initmodule("imgfile", imgfile_methods);
|
||||
d = getmoduledict(m);
|
||||
ImgfileError = newstringobject("imgfile.error");
|
||||
if ( ImgfileError == NULL || dictinsert(d, "error", ImgfileError) )
|
||||
fatal("can't define imgfile.error");
|
||||
PyObject *m, *d;
|
||||
m = Py_InitModule("imgfile", imgfile_methods);
|
||||
d = PyModule_GetDict(m);
|
||||
ImgfileError = PyString_FromString("imgfile.error");
|
||||
if ( ImgfileError == NULL
|
||||
|| PyDict_SetItemString(d, "error", ImgfileError) )
|
||||
Py_FatalError("can't define imgfile.error");
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue