135 lines
2.9 KiB
C
135 lines
2.9 KiB
C
#include "mupdf/fitz.h"
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#include "xps-imp.h"
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#include <string.h>
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static fz_image *
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xps_load_image(fz_context *ctx, xps_document *doc, xps_part *part)
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{
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return fz_new_image_from_buffer(ctx, part->data);
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}
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/* FIXME: area unused! */
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static void
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xps_paint_image_brush(fz_context *ctx, xps_document *doc, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict,
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fz_xml *root, void *vimage)
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{
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fz_image *image = vimage;
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float xs, ys;
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if (image->xres == 0 || image->yres == 0)
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return;
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xs = image->w * 96 / image->xres;
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ys = image->h * 96 / image->yres;
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ctm = fz_pre_scale(ctm, xs, ys);
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fz_fill_image(ctx, doc->dev, image, ctm, doc->opacity[doc->opacity_top], fz_default_color_params);
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}
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static void
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xps_find_image_brush_source_part(fz_context *ctx, xps_document *doc, char *base_uri, fz_xml *root, xps_part **image_part, xps_part **profile_part)
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{
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char *image_source_att;
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char buf[1024];
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char partname[1024];
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char *image_name;
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char *profile_name;
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char *p;
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image_source_att = fz_xml_att(root, "ImageSource");
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if (!image_source_att)
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fz_throw(ctx, FZ_ERROR_GENERIC, "cannot find image source attribute");
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/* "{ColorConvertedBitmap /Resources/Image.tiff /Resources/Profile.icc}" */
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if (strstr(image_source_att, "{ColorConvertedBitmap") == image_source_att)
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{
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image_name = NULL;
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profile_name = NULL;
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fz_strlcpy(buf, image_source_att, sizeof buf);
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p = strchr(buf, ' ');
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if (p)
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{
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image_name = p + 1;
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p = strchr(p + 1, ' ');
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if (p)
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{
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*p = 0;
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profile_name = p + 1;
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p = strchr(p + 1, '}');
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if (p)
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*p = 0;
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}
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}
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}
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else
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{
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image_name = image_source_att;
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profile_name = NULL;
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}
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if (!image_name)
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fz_throw(ctx, FZ_ERROR_GENERIC, "cannot find image source");
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if (image_part)
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{
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xps_resolve_url(ctx, doc, partname, base_uri, image_name, sizeof partname);
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*image_part = xps_read_part(ctx, doc, partname);
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}
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if (profile_part)
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{
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if (profile_name)
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{
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xps_resolve_url(ctx, doc, partname, base_uri, profile_name, sizeof partname);
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*profile_part = xps_read_part(ctx, doc, partname);
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}
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else
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*profile_part = NULL;
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}
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}
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void
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xps_parse_image_brush(fz_context *ctx, xps_document *doc, fz_matrix ctm, fz_rect area,
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char *base_uri, xps_resource *dict, fz_xml *root)
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{
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xps_part *part = NULL;
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fz_image *image = NULL;
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fz_try(ctx)
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{
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xps_find_image_brush_source_part(ctx, doc, base_uri, root, &part, NULL);
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}
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fz_catch(ctx)
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{
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if (fz_caught(ctx) == FZ_ERROR_TRYLATER)
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{
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if (doc->cookie)
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doc->cookie->incomplete = 1;
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}
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else
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fz_warn(ctx, "cannot find image source");
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return;
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}
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fz_try(ctx)
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{
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image = xps_load_image(ctx, doc, part);
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}
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fz_always(ctx)
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{
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xps_drop_part(ctx, doc, part);
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}
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fz_catch(ctx)
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{
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fz_warn(ctx, "cannot decode image resource");
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return;
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}
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fz_try(ctx)
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xps_parse_tiling_brush(ctx, doc, ctm, area, base_uri, dict, root, xps_paint_image_brush, image);
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fz_always(ctx)
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fz_drop_image(ctx, image);
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fz_catch(ctx)
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fz_rethrow(ctx);
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}
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