1 #include "mupdf/fitz.h"
2 #include "xps-imp.h"
3
4 #include <string.h>
5
6 static fz_image *
xps_load_image(fz_context * ctx,xps_document * doc,xps_part * part)7 xps_load_image(fz_context *ctx, xps_document *doc, xps_part *part)
8 {
9 return fz_new_image_from_buffer(ctx, part->data);
10 }
11
12 /* FIXME: area unused! */
13 static void
xps_paint_image_brush(fz_context * ctx,xps_document * doc,fz_matrix ctm,fz_rect area,char * base_uri,xps_resource * dict,fz_xml * root,void * vimage)14 xps_paint_image_brush(fz_context *ctx, xps_document *doc, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict,
15 fz_xml *root, void *vimage)
16 {
17 fz_image *image = vimage;
18 float xs, ys;
19
20 if (image->xres == 0 || image->yres == 0)
21 return;
22 xs = image->w * 96 / image->xres;
23 ys = image->h * 96 / image->yres;
24 ctm = fz_pre_scale(ctm, xs, ys);
25 fz_fill_image(ctx, doc->dev, image, ctm, doc->opacity[doc->opacity_top], fz_default_color_params);
26 }
27
28 static void
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)29 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)
30 {
31 char *image_source_att;
32 char buf[1024];
33 char partname[1024];
34 char *image_name;
35 char *profile_name;
36 char *p;
37
38 image_source_att = fz_xml_att(root, "ImageSource");
39 if (!image_source_att)
40 fz_throw(ctx, FZ_ERROR_GENERIC, "cannot find image source attribute");
41
42 /* "{ColorConvertedBitmap /Resources/Image.tiff /Resources/Profile.icc}" */
43 if (strstr(image_source_att, "{ColorConvertedBitmap") == image_source_att)
44 {
45 image_name = NULL;
46 profile_name = NULL;
47
48 fz_strlcpy(buf, image_source_att, sizeof buf);
49 p = strchr(buf, ' ');
50 if (p)
51 {
52 image_name = p + 1;
53 p = strchr(p + 1, ' ');
54 if (p)
55 {
56 *p = 0;
57 profile_name = p + 1;
58 p = strchr(p + 1, '}');
59 if (p)
60 *p = 0;
61 }
62 }
63 }
64 else
65 {
66 image_name = image_source_att;
67 profile_name = NULL;
68 }
69
70 if (!image_name)
71 fz_throw(ctx, FZ_ERROR_GENERIC, "cannot find image source");
72
73 if (image_part)
74 {
75 xps_resolve_url(ctx, doc, partname, base_uri, image_name, sizeof partname);
76 *image_part = xps_read_part(ctx, doc, partname);
77 }
78
79 if (profile_part)
80 {
81 if (profile_name)
82 {
83 xps_resolve_url(ctx, doc, partname, base_uri, profile_name, sizeof partname);
84 *profile_part = xps_read_part(ctx, doc, partname);
85 }
86 else
87 *profile_part = NULL;
88 }
89 }
90
91 void
xps_parse_image_brush(fz_context * ctx,xps_document * doc,fz_matrix ctm,fz_rect area,char * base_uri,xps_resource * dict,fz_xml * root)92 xps_parse_image_brush(fz_context *ctx, xps_document *doc, fz_matrix ctm, fz_rect area,
93 char *base_uri, xps_resource *dict, fz_xml *root)
94 {
95 xps_part *part = NULL;
96 fz_image *image = NULL;
97
98 fz_try(ctx)
99 {
100 xps_find_image_brush_source_part(ctx, doc, base_uri, root, &part, NULL);
101 }
102 fz_catch(ctx)
103 {
104 if (fz_caught(ctx) == FZ_ERROR_TRYLATER)
105 {
106 if (doc->cookie)
107 doc->cookie->incomplete = 1;
108 }
109 else
110 fz_warn(ctx, "cannot find image source");
111 return;
112 }
113
114 fz_try(ctx)
115 {
116 image = xps_load_image(ctx, doc, part);
117 }
118 fz_always(ctx)
119 {
120 xps_drop_part(ctx, doc, part);
121 }
122 fz_catch(ctx)
123 {
124 fz_warn(ctx, "cannot decode image resource");
125 return;
126 }
127
128 fz_try(ctx)
129 xps_parse_tiling_brush(ctx, doc, ctm, area, base_uri, dict, root, xps_paint_image_brush, image);
130 fz_always(ctx)
131 fz_drop_image(ctx, image);
132 fz_catch(ctx)
133 fz_rethrow(ctx);
134 }
135