summaryrefslogtreecommitdiff
path: root/Build/source/texk/dvipdf-x/src/pdfximage.c
diff options
context:
space:
mode:
Diffstat (limited to 'Build/source/texk/dvipdf-x/src/pdfximage.c')
-rw-r--r--Build/source/texk/dvipdf-x/src/pdfximage.c940
1 files changed, 0 insertions, 940 deletions
diff --git a/Build/source/texk/dvipdf-x/src/pdfximage.c b/Build/source/texk/dvipdf-x/src/pdfximage.c
deleted file mode 100644
index 5dad655a97a..00000000000
--- a/Build/source/texk/dvipdf-x/src/pdfximage.c
+++ /dev/null
@@ -1,940 +0,0 @@
-/*
-
- This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks.
-
- Copyright (C) 2007-2012 by Jin-Hwan Cho and Shunsaku Hirata,
- the dvipdfmx project team.
-
- Copyright (C) 1998, 1999 by Mark A. Wicks <mwicks@kettering.edu>
-
- 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 2 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, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
-*/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include "system.h"
-#include "error.h"
-#include "mem.h"
-
-#include "dpxfile.h"
-
-#include "pdfobj.h"
-
-#include "pdfdoc.h"
-#include "pdfdev.h"
-#include "pdfdraw.h"
-
-#include "epdf.h"
-#include "mpost.h"
-#include "pngimage.h"
-#include "jpegimage.h"
-#include "bmpimage.h"
-
-#include "pdfximage.h"
-
-/* From psimage.h */
-static int check_for_ps (FILE *fp);
-static int ps_include_page (pdf_ximage *ximage);
-
-
-#define IMAGE_TYPE_UNKNOWN -1
-#define IMAGE_TYPE_PDF 0
-#define IMAGE_TYPE_JPEG 1
-#define IMAGE_TYPE_PNG 2
-#define IMAGE_TYPE_MPS 4
-#define IMAGE_TYPE_EPS 5
-#define IMAGE_TYPE_BMP 6
-
-
-struct attr_
-{
- long width, height;
- double xdensity, ydensity;
- pdf_rect bbox;
-};
-
-struct pdf_ximage_
-{
- char *ident;
- char res_name[16];
- long page_no;
-
- int subtype;
-
- struct attr_ attr;
-
- char *filename;
- pdf_obj *reference;
- pdf_obj *resource;
- pdf_obj *attr_dict;
-
- char tempfile;
-};
-
-
-/* verbose, verbose, verbose... */
-struct opt_
-{
- int verbose;
- char *cmdtmpl;
-};
-
-static struct opt_ _opts = {
- 0, NULL
-};
-
-void pdf_ximage_set_verbose (void) { _opts.verbose++; }
-
-
-struct ic_
-{
- int count, capacity;
- pdf_ximage *ximages;
-};
-
-static struct ic_ _ic = {
- 0, 0, NULL
-};
-
-static void
-pdf_init_ximage_struct (pdf_ximage *I,
- const char *ident, const char *filename,
- long page_no, pdf_obj *dict)
-{
- if (ident) {
- I->ident = NEW(strlen(ident)+1, char);
- strcpy(I->ident, ident);
- } else
- I ->ident = NULL;
- I->page_no = page_no;
- if (filename) {
- I->filename = NEW(strlen(filename)+1, char);
- strcpy(I->filename, filename);
- } else
- I->filename = NULL;
- I->subtype = -1;
- memset(I->res_name, 0, 16);
- I->reference = NULL;
- I->resource = NULL;
- I->attr_dict = dict;
-
- I->attr.width = I->attr.height = 0;
- I->attr.xdensity = I->attr.ydensity = 1.0;
- I->attr.bbox.llx = I->attr.bbox.lly = 0;
- I->attr.bbox.urx = I->attr.bbox.ury = 0;
-
- I->tempfile = 0;
-}
-
-static void
-pdf_set_ximage_tempfile (pdf_ximage *I, const char *filename)
-{
- if (I->filename)
- RELEASE(I->filename);
- I->filename = NEW(strlen(filename)+1, char);
- strcpy(I->filename, filename);
- I->tempfile = 1;
-}
-
-static void
-pdf_clean_ximage_struct (pdf_ximage *I)
-{
- if (I->ident)
- RELEASE(I->ident);
- if (I->filename)
- RELEASE(I->filename);
- if (I->reference)
- pdf_release_obj(I->reference);
- if (I->resource)
- pdf_release_obj(I->resource);
- if (I->attr_dict)
- pdf_release_obj(I->attr_dict);
- pdf_init_ximage_struct(I, NULL, NULL, 0, NULL);
-}
-
-
-void
-pdf_init_images (void)
-{
- struct ic_ *ic = &_ic;
- ic->count = 0;
- ic->capacity = 0;
- ic->ximages = NULL;
-}
-
-void
-pdf_close_images (void)
-{
- struct ic_ *ic = &_ic;
- if (ic->ximages) {
- int i;
- for (i = 0; i < ic->count; i++) {
- pdf_ximage *I = ic->ximages+i;
- if (I->tempfile) {
- /*
- * It is important to remove temporary files at the end because
- * we cache file names. Since we use mkstemp to create them, we
- * might get the same file name again if delete the first file.
- * (This happens on NetBSD, reported by Jukka Salmi.)
- * We also use this to convert a PS file only once if multiple
- * pages are imported from that file.
- */
- if (_opts.verbose > 1 && keep_cache != 1)
- MESG("pdf_image>> deleting temporary file \"%s\"\n", I->filename);
- dpx_delete_temp_file(I->filename, false); /* temporary filename freed here */
- I->filename = NULL;
- }
- pdf_clean_ximage_struct(I);
- }
- RELEASE(ic->ximages);
- ic->ximages = NULL;
- ic->count = ic->capacity = 0;
- }
-
- if (_opts.cmdtmpl)
- RELEASE(_opts.cmdtmpl);
- _opts.cmdtmpl = NULL;
-}
-
-
-static int
-source_image_type (FILE *fp)
-{
- int format = IMAGE_TYPE_UNKNOWN;
-
- rewind(fp);
- /*
- * Make sure we check for PS *after* checking for MP since
- * MP is a special case of PS.
- */
- if (check_for_jpeg(fp))
- {
- format = IMAGE_TYPE_JPEG;
- }
-#ifdef HAVE_LIBPNG
- else if (check_for_png(fp))
- {
- format = IMAGE_TYPE_PNG;
- }
-#endif
- else if (check_for_bmp(fp))
- {
- format = IMAGE_TYPE_BMP;
- } else if (check_for_pdf(fp)) {
- format = IMAGE_TYPE_PDF;
- } else if (check_for_mp(fp)) {
- format = IMAGE_TYPE_MPS;
- } else if (check_for_ps(fp)) {
- format = IMAGE_TYPE_EPS;
- } else {
- format = IMAGE_TYPE_UNKNOWN;
- }
- rewind(fp);
-
- return format;
-}
-
-static int
-load_image (const char *ident, const char *fullname, int format, FILE *fp,
- long page_no, pdf_obj *dict)
-{
- struct ic_ *ic = &_ic;
- int id = -1; /* ret */
- pdf_ximage *I;
-
- id = ic->count;
- if (ic->count >= ic->capacity) {
- ic->capacity += 16;
- ic->ximages = RENEW(ic->ximages, ic->capacity, pdf_ximage);
- }
-
- I = &ic->ximages[id];
- pdf_init_ximage_struct(I, ident, fullname, page_no, dict);
-
- switch (format) {
- case IMAGE_TYPE_JPEG:
- if (_opts.verbose)
- MESG("[JPEG]");
- if (jpeg_include_image(I, fp) < 0)
- goto error;
- I->subtype = PDF_XOBJECT_TYPE_IMAGE;
- break;
-#ifdef HAVE_LIBPNG
- case IMAGE_TYPE_PNG:
- if (_opts.verbose)
- MESG("[PNG]");
- if (png_include_image(I, fp) < 0)
- goto error;
- I->subtype = PDF_XOBJECT_TYPE_IMAGE;
- break;
-#endif
- case IMAGE_TYPE_BMP:
- if (_opts.verbose)
- MESG("[BMP]");
- if (bmp_include_image(I, fp) < 0)
- goto error;
- I->subtype = PDF_XOBJECT_TYPE_IMAGE;
- break;
- case IMAGE_TYPE_PDF:
- if (_opts.verbose)
- MESG("[PDF]");
- {
- int result = pdf_include_page(I, fp, fullname);
- if (result > 0)
- /* PDF version too recent */
- result = ps_include_page(I);
- if (result < 0)
- goto error;
- }
- if (_opts.verbose)
- MESG(",Page:%ld", I->page_no);
- I->subtype = PDF_XOBJECT_TYPE_FORM;
- break;
- // case IMAGE_TYPE_EPS:
- default:
- if (_opts.verbose)
- MESG(format == IMAGE_TYPE_EPS ? "[PS]" : "[UNKNOWN]");
- if (ps_include_page(I) < 0)
- goto error;
- if (_opts.verbose)
- MESG(",Page:%ld", I->page_no);
- I->subtype = PDF_XOBJECT_TYPE_FORM;
- }
-
- switch (I->subtype) {
- case PDF_XOBJECT_TYPE_IMAGE:
- sprintf(I->res_name, "Im%d", id);
- break;
- case PDF_XOBJECT_TYPE_FORM:
- sprintf(I->res_name, "Fm%d", id);
- break;
- default:
- ERROR("Unknown XObject subtype: %d", I->subtype);
- goto error;
- }
-
- ic->count++;
-
- return id;
-
- error:
- pdf_clean_ximage_struct(I);
- return -1;
-}
-
-
-#define dpx_find_file(n,d,s) (kpse_find_pict((n)))
-#define dpx_fopen(n,m) (MFOPEN((n),(m)))
-#define dpx_fclose(f) (MFCLOSE((f)))
-
-int
-pdf_ximage_findresource (const char *ident, long page_no, pdf_obj *dict)
-{
- struct ic_ *ic = &_ic;
- int id = -1;
- pdf_ximage *I;
- char *fullname, *f = NULL;
- int format;
- FILE *fp;
-
- for (id = 0; id < ic->count; id++) {
- I = &ic->ximages[id];
- if (I->ident && !strcmp(ident, I->ident)) {
- f = I->filename;
- if (I->page_no == page_no && I->attr_dict == dict) {
- return id;
- }
- }
- }
-
- if (f) {
- /* we already have converted this file; f is the temporary file name */
- fullname = NEW(strlen(f)+1, char);
- strcpy(fullname, f);
- } else {
- /* try loading image */
- fullname = dpx_find_file(ident, "_pic_", "");
- if (!fullname) {
- WARN("Error locating image file \"%s\"", ident);
- return -1;
- }
- }
-
- fp = dpx_fopen(fullname, FOPEN_RBIN_MODE);
- if (!fp) {
- WARN("Error opening image file \"%s\"", fullname);
- RELEASE(fullname);
- return -1;
- }
- if (_opts.verbose) {
- MESG("(Image:%s", ident);
- if (_opts.verbose > 1)
- MESG("[%s]", fullname);
- }
-
- format = source_image_type(fp);
- switch (format) {
- case IMAGE_TYPE_MPS:
- if (_opts.verbose)
- MESG("[MPS]");
- id = mps_include_page(ident, fp);
- if (id < 0) {
- WARN("Try again with the distiller.");
- format = IMAGE_TYPE_EPS;
- rewind(fp);
- } else
- break;
- default:
- id = load_image(ident, fullname, format, fp, page_no, dict);
- break;
- }
- dpx_fclose(fp);
-
- RELEASE(fullname);
-
- if (_opts.verbose)
- MESG(")");
-
- if (id < 0)
- WARN("pdf: image inclusion failed for \"%s\".", ident);
-
- return id;
-}
-
-/* Reference: PDF Reference 1.5 v6, pp.321--322
- *
- * TABLE 4.42 Additional entries specific to a type 1 form dictionary
- *
- * BBox rectangle (Required) An array of four numbers in the form coordinate
- * system, giving the coordinates of the left, bottom, right,
- * and top edges, respectively, of the form XObject's bounding
- * box. These boundaries are used to clip the form XObject and
- * to determine its size for caching.
- *
- * Matrix array (Optional) An array of six numbers specifying the form
- * matrix, which maps form space into user space.
- * Default value: the identity matrix [1 0 0 1 0 0].
- */
-void
-pdf_ximage_init_form_info (xform_info *info)
-{
- info->flags = 0;
- info->bbox.llx = 0;
- info->bbox.lly = 0;
- info->bbox.urx = 0;
- info->bbox.ury = 0;
- info->matrix.a = 1.0;
- info->matrix.b = 0.0;
- info->matrix.c = 0.0;
- info->matrix.d = 1.0;
- info->matrix.e = 0.0;
- info->matrix.f = 0.0;
-}
-
-/* Reference: PDF Reference 1.5 v6, pp.303--306
- *
- * TABLE 4.42 Additional entries specific to an image dictionary
- *
- * Width integer (Required) The width of the image, in samples.
- *
- * Height integer (Required) The height of the image, in samples.
- *
- * ColorSpace name or array
- * (Required for images, except those that use the JPXDecode
- * filter; not allowed for image masks) The color space in
- * which image samples are specified. This may be any type
- * of color space except Patter.
- *
- * If the image uses the JPXDecode filter, this entry is
- * optional.
- *
- * BitsPerComponent integer
- * (Required except for image masks and images that use the
- * JPXDecode filter) The number of bits used to represent
- * each color component. Only a single value may be specified;
- * the number of bits is the same for all color components.
- * Valid values are 1,2,4,8, and (in PDF1.5) 16. If ImageMask
- * is true, this entry is optional, and if speficified, its
- * value must be 1.
- *
- * If the image stream uses the JPXDecode filter, this entry
- * is optional and ignored if present. The bit depth is
- * determined in the process of decoding the JPEG2000 image.
- */
-void
-pdf_ximage_init_image_info (ximage_info *info)
-{
- info->flags = 0;
- info->width = 0;
- info->height = 0;
- info->bits_per_component = 0;
- info->num_components = 0;
- info->min_dpi = 0;
- info->xdensity = info->ydensity = 1.0;
-}
-
-void
-pdf_ximage_set_image (pdf_ximage *I, void *image_info, pdf_obj *resource)
-{
- pdf_obj *dict;
- ximage_info *info = image_info;
-
- if (!PDF_OBJ_STREAMTYPE(resource))
- ERROR("Image XObject must be of stream type.");
-
- I->subtype = PDF_XOBJECT_TYPE_IMAGE;
-
- I->attr.width = info->width; /* The width of the image, in samples */
- I->attr.height = info->height; /* The height of the image, in samples */
- I->attr.xdensity = info->xdensity;
- I->attr.ydensity = info->ydensity;
-
- I->reference = pdf_ref_obj(resource);
-
- dict = pdf_stream_dict(resource);
- pdf_add_dict(dict, pdf_new_name("Type"), pdf_new_name("XObject"));
- pdf_add_dict(dict, pdf_new_name("Subtype"), pdf_new_name("Image"));
- pdf_add_dict(dict, pdf_new_name("Width"), pdf_new_number(info->width));
- pdf_add_dict(dict, pdf_new_name("Height"), pdf_new_number(info->height));
- pdf_add_dict(dict, pdf_new_name("BitsPerComponent"),
- pdf_new_number(info->bits_per_component));
- if (I->attr_dict)
- pdf_merge_dict(dict, I->attr_dict);
-
- pdf_release_obj(resource); /* Caller don't know we are using reference. */
- I->resource = NULL;
-}
-
-void
-pdf_ximage_set_form (pdf_ximage *I, void *form_info, pdf_obj *resource)
-{
- xform_info *info = form_info;
-
- I->subtype = PDF_XOBJECT_TYPE_FORM;
-
- I->attr.bbox.llx = info->bbox.llx;
- I->attr.bbox.lly = info->bbox.lly;
- I->attr.bbox.urx = info->bbox.urx;
- I->attr.bbox.ury = info->bbox.ury;
-
- I->reference = pdf_ref_obj(resource);
-
- pdf_release_obj(resource); /* Caller don't know we are using reference. */
- I->resource = NULL;
-}
-
-long
-pdf_ximage_get_page (pdf_ximage *I)
-{
- return I->page_no;
-}
-
-#define CHECK_ID(c,n) do {\
- if ((n) < 0 || (n) >= (c)->count) {\
- ERROR("Invalid XObject ID: %d", (n));\
- }\
-} while (0)
-#define GET_IMAGE(c,n) (&((c)->ximages[(n)]))
-
-pdf_obj *
-pdf_ximage_get_reference (int id)
-{
- struct ic_ *ic = &_ic;
- pdf_ximage *I;
-
- CHECK_ID(ic, id);
-
- I = GET_IMAGE(ic, id);
- if (!I->reference)
- I->reference = pdf_ref_obj(I->resource);
-
- return pdf_link_obj(I->reference);
-}
-
-/* called from pdfdoc.c only for late binding */
-int
-pdf_ximage_defineresource (const char *ident,
- int subtype, void *info, pdf_obj *resource)
-{
- struct ic_ *ic = &_ic;
- int id;
- pdf_ximage *I;
-
- id = ic->count;
- if (ic->count >= ic->capacity) {
- ic->capacity += 16;
- ic->ximages = RENEW(ic->ximages, ic->capacity, pdf_ximage);
- }
-
- I = &ic->ximages[id];
-
- pdf_init_ximage_struct(I, ident, NULL, 0, NULL);
-
- switch (subtype) {
- case PDF_XOBJECT_TYPE_IMAGE:
- pdf_ximage_set_image(I, info, resource);
- sprintf(I->res_name, "Im%d", id);
- break;
- case PDF_XOBJECT_TYPE_FORM:
- pdf_ximage_set_form (I, info, resource);
- sprintf(I->res_name, "Fm%d", id);
- break;
- default:
- ERROR("Unknown XObject subtype: %d", subtype);
- }
- ic->count++;
-
- return id;
-}
-
-
-char *
-pdf_ximage_get_resname (int id)
-{
- struct ic_ *ic = &_ic;
- pdf_ximage *I;
-
- CHECK_ID(ic, id);
-
- I = GET_IMAGE(ic, id);
-
- return I->res_name;
-}
-
-int
-pdf_ximage_get_subtype (int id)
-{
- struct ic_ *ic = &_ic;
- pdf_ximage *I;
-
- CHECK_ID(ic, id);
-
- I = GET_IMAGE(ic, id);
-
- return I->subtype;
-}
-
-void
-pdf_ximage_set_attr (int id, long width, long height, double xdensity, double ydensity, double llx, double lly, double urx, double ury)
-{
- struct ic_ *ic = &_ic;
- pdf_ximage *I;
-
- CHECK_ID(ic, id);
-
- I = GET_IMAGE(ic, id);
- I->attr.width = width;
- I->attr.height = height;
- I->attr.xdensity = xdensity;
- I->attr.ydensity = ydensity;
- I->attr.bbox.llx = llx;
- I->attr.bbox.lly = lly;
- I->attr.bbox.urx = urx;
- I->attr.bbox.ury = ury;
-}
-
-/* depth...
- * Dvipdfm treat "depth" as "yoffset" for pdf:image and pdf:uxobj
- * not as vertical dimension of scaled image. (And there are bugs.)
- * This part contains incompatibile behaviour than dvipdfm!
- */
-#define EBB_DPI 72
-
-static void
-scale_to_fit_I (pdf_tmatrix *T,
- transform_info *p,
- pdf_ximage *I)
-{
- double s_x, s_y, d_x, d_y;
- double wd0, ht0, dp, xscale, yscale;
-
- if (p->flags & INFO_HAS_USER_BBOX) {
- wd0 = p->bbox.urx - p->bbox.llx;
- ht0 = p->bbox.ury - p->bbox.lly;
- xscale = I->attr.width * I->attr.xdensity / wd0;
- yscale = I->attr.height * I->attr.ydensity / ht0;
- d_x = -p->bbox.llx / wd0;
- d_y = -p->bbox.lly / ht0;
- } else {
- wd0 = I->attr.width * I->attr.xdensity;
- ht0 = I->attr.height * I->attr.ydensity;
- xscale = yscale = 1.0;
- d_x = 0.0;
- d_y = 0.0;
- }
-
- if (wd0 == 0.0) {
- WARN("Image width=0.0!");
- wd0 = 1.0;
- }
- if (ht0 == 0.0) {
- WARN("Image height=0.0!");
- ht0 = 1.0;
- }
-
- if ( (p->flags & INFO_HAS_WIDTH ) &&
- (p->flags & INFO_HAS_HEIGHT) ) {
- s_x = p->width * xscale;
- s_y = (p->height + p->depth) * yscale;
- dp = p->depth * yscale;
- } else if ( p->flags & INFO_HAS_WIDTH ) {
- s_x = p->width * xscale;
- s_y = s_x * ((double)I->attr.height / I->attr.width);
- dp = 0.0;
- } else if ( p->flags & INFO_HAS_HEIGHT) {
- s_y = (p->height + p->depth) * yscale;
- s_x = s_y * ((double)I->attr.width / I->attr.height);
- dp = p->depth * yscale;
- } else {
- s_x = wd0;
- s_y = ht0;
- dp = 0.0;
- }
- T->a = s_x; T->c = 0.0;
- T->b = 0.0; T->d = s_y;
- T->e = d_x * s_x / xscale; T->f = d_y * s_y / yscale - dp;
-
- return;
-}
-
-
-static void
-scale_to_fit_F (pdf_tmatrix *T,
- transform_info *p,
- pdf_ximage *I)
-{
- double s_x, s_y, d_x, d_y;
- double wd0, ht0, dp;
-
- if (p->flags & INFO_HAS_USER_BBOX) {
- wd0 = p->bbox.urx - p->bbox.llx;
- ht0 = p->bbox.ury - p->bbox.lly;
- d_x = -p->bbox.llx;
- d_y = -p->bbox.lly;
- } else {
- wd0 = I->attr.bbox.urx - I->attr.bbox.llx;
- ht0 = I->attr.bbox.ury - I->attr.bbox.lly;
- d_x = 0.0;
- d_y = 0.0;
- }
-
- if (wd0 == 0.0) {
- WARN("Image width=0.0!");
- wd0 = 1.0;
- }
- if (ht0 == 0.0) {
- WARN("Image height=0.0!");
- ht0 = 1.0;
- }
-
- if ( (p->flags & INFO_HAS_WIDTH ) &&
- (p->flags & INFO_HAS_HEIGHT) ) {
- s_x = p->width / wd0;
- s_y = (p->height + p->depth) / ht0;
- dp = p->depth;
- } else if ( p->flags & INFO_HAS_WIDTH ) {
- s_x = p->width / wd0;
- s_y = s_x;
- dp = 0.0;
- } else if ( p->flags & INFO_HAS_HEIGHT) {
- s_y = (p->height + p->depth) / ht0;
- s_x = s_y;
- dp = p->depth;
- } else {
- s_x = s_y = 1.0;
- dp = 0.0;
- }
-
- T->a = s_x; T->c = 0.0;
- T->b = 0.0; T->d = s_y;
- T->e = s_x * d_x; T->f = s_y * d_y - dp;
-
- return;
-}
-
-
-/* called from pdfdev.c and spc_html.c */
-int
-pdf_ximage_scale_image (int id,
- pdf_tmatrix *M, /* return value for trans matrix */
- pdf_rect *r, /* return value for clipping */
- transform_info *p /* argument from specials */
- )
-{
- struct ic_ *ic = &_ic;
- pdf_ximage *I;
-
- CHECK_ID(ic, id);
-
- I = GET_IMAGE(ic, id);
-
- pdf_setmatrix(M, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
-
- switch (I->subtype) {
- /* Reference: PDF Reference 1.5 v6, p.302
- *
- * An image can be placed on the output page in any desired position,
- * orientation, and size by using the cm operator to modify the current
- * transformation matrix (CTM) so as to map the unit square of user space
- * to the rectangle or parallelogram in which the image is to be painted.
- *
- * There is neither BBox nor Matrix key in the image XObject.
- * Everything must be controlled by the cm operator.
- *
- * The argument [p] contains the user-defined bounding box, the scailing
- * factor of which is bp as EPS and PDF. On the other hand, I->attr
- * contains the (sampling) width and the (sampling) height of the image.
- *
- * There is no problem if a bitmap image has density information.
- * Otherwise, DVIPDFM's ebb generates bounding box as 100px = 72bp = 1in.
- * In this case, screen captured images look bad. Moreover, DVIPDFM's ebb
- * ignores all density information and use just 100px = 72bp = 1in.
- *
- * On the other hand, pdfTeX uses 100px = 100bp to get a better quality
- * for screen captured images.
- *
- * DVIPDFMx's xbb generates bounding box as 100px = 100bp in the same
- * way as pdfTeX. Furthermore, it takes care of density information too.
- */
- case PDF_XOBJECT_TYPE_IMAGE:
- scale_to_fit_I(M, p, I);
- if (p->flags & INFO_HAS_USER_BBOX) {
- r->llx = p->bbox.llx / (I->attr.width * I->attr.xdensity);
- r->lly = p->bbox.lly / (I->attr.height * I->attr.ydensity);
- r->urx = p->bbox.urx / (I->attr.width * I->attr.xdensity);
- r->ury = p->bbox.ury / (I->attr.height * I->attr.ydensity);
- } else {
- r->llx = 0.0;
- r->lly = 0.0;
- r->urx = 1.0;
- r->ury = 1.0;
- }
- break;
- /* User-defined transformation and clipping are controlled by
- * the cm operator and W operator, explicitly */
- case PDF_XOBJECT_TYPE_FORM:
- scale_to_fit_F(M, p, I);
- if (p->flags & INFO_HAS_USER_BBOX) {
- r->llx = p->bbox.llx;
- r->lly = p->bbox.lly;
- r->urx = p->bbox.urx;
- r->ury = p->bbox.ury;
- } else { /* I->attr.bbox from the image bounding box */
- r->llx = I->attr.bbox.llx;
- r->lly = I->attr.bbox.lly;
- r->urx = I->attr.bbox.urx;
- r->ury = I->attr.bbox.ury;
- }
- break;
- }
-
- return 0;
-}
-
-
-/* Migrated from psimage.c */
-
-void set_distiller_template (char *s)
-{
- if (_opts.cmdtmpl)
- RELEASE(_opts.cmdtmpl);
- if (!s || *s == '\0')
- _opts.cmdtmpl = NULL;
- else {
- _opts.cmdtmpl = NEW(strlen(s) + 1, char);
- strcpy(_opts.cmdtmpl, s);
- }
- return;
-}
-
-static int
-ps_include_page (pdf_ximage *ximage)
-{
- char *distiller_template = _opts.cmdtmpl;
- char *filename = ximage->filename;
- char *temp;
- FILE *fp;
- int error = 0;
- struct stat stat_o, stat_t;
-
- if (!distiller_template) {
- WARN("No image converter available for converting file \"%s\" to PDF format.", filename);
- WARN(">> Please check if you have 'D' option in config file.");
- return -1;
- }
-
- temp = dpx_create_fix_temp_file(filename);
- if (!temp) {
- WARN("Failed to create temporary file for image conversion: %s", filename);
- return -1;
- }
-
- if (keep_cache != -1 && stat(temp, &stat_t)==0 && stat(filename, &stat_o)==0
- && stat_t.st_mtime > stat_o.st_mtime) {
- /* cache exist */
- /*printf("\nLast file modification: %s", ctime(&stat_o.st_mtime));
- printf("Last file modification: %s", ctime(&stat_t.st_mtime));*/
- ;
- } else {
- if (_opts.verbose > 1) {
- MESG("\n");
- MESG("pdf_image>> Converting file \"%s\" --> \"%s\" via:\n", filename, temp);
- MESG("pdf_image>> %s\n", distiller_template);
- MESG("pdf_image>> ...");
- }
- error = dpx_file_apply_filter(distiller_template, filename, temp,
- (unsigned char) pdf_get_version());
- if (error) {
- WARN("Image format conversion for \"%s\" failed...", filename);
- dpx_delete_temp_file(temp, true);
- return error;
- }
- }
-
- fp = MFOPEN(temp, FOPEN_RBIN_MODE);
- if (!fp) {
- WARN("Could not open conversion result \"%s\" for image \"%s\". Why?", temp, filename);
- dpx_delete_temp_file(temp, true);
- return -1;
- }
- pdf_set_ximage_tempfile(ximage, temp);
- error = pdf_include_page(ximage, fp, temp);
- MFCLOSE(fp);
-
- /* See pdf_close_images for why we cannot delete temporary files here. */
-
- RELEASE(temp);
-
- if (error) {
- WARN("Failed to include image file \"%s\"", filename);
- WARN(">> Please check if");
- WARN(">> %s", distiller_template);
- WARN(">> %%o = output filename, %%i = input filename, %%b = input filename without suffix");
- WARN(">> can really convert \"%s\" to PDF format image.", filename);
- }
-
- return error;
-}
-
-static int check_for_ps (FILE *image_file)
-{
- rewind (image_file);
- mfgets (work_buffer, WORK_BUFFER_SIZE, image_file);
- if (!strncmp (work_buffer, "%!", 2))
- return 1;
- return 0;
-}