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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4680 | right-hear | 1 | #include "fitz.h" |
| 2 | #include "muxps.h" |
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| 3 | |||
| 4 | static int |
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| 5 | xps_decode_image(fz_pixmap **imagep, byte *buf, int len) |
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| 6 | { |
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| 7 | int error; |
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| 8 | |||
| 9 | if (len < 8) |
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| 10 | return fz_throw("unknown image file format"); |
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| 11 | |||
| 12 | if (buf[0] == 0xff && buf[1] == 0xd8) |
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| 13 | { |
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| 14 | error = xps_decode_jpeg(imagep, buf, len); |
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| 15 | if (error) |
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| 16 | return fz_rethrow(error, "cannot decode jpeg image"); |
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| 17 | } |
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| 18 | else if (memcmp(buf, "\211PNG\r\n\032\n", 8) == 0) |
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| 19 | { |
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| 20 | error = xps_decode_png(imagep, buf, len); |
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| 21 | if (error) |
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| 22 | return fz_rethrow(error, "cannot decode png image"); |
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| 23 | } |
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| 24 | else if (memcmp(buf, "II", 2) == 0 && buf[2] == 0xBC) |
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| 25 | { |
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| 26 | return fz_throw("JPEG-XR codec is not available"); |
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| 27 | } |
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| 28 | else if (memcmp(buf, "MM", 2) == 0 || memcmp(buf, "II", 2) == 0) |
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| 29 | { |
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| 30 | error = xps_decode_tiff(imagep, buf, len); |
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| 31 | if (error) |
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| 32 | return fz_rethrow(error, "cannot decode TIFF image"); |
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| 33 | } |
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| 34 | else |
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| 35 | return fz_throw("unknown image file format"); |
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| 36 | |||
| 37 | return fz_okay; |
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| 38 | } |
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| 39 | |||
| 40 | static void |
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| 41 | xps_paint_image_brush(xps_context *ctx, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, |
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| 42 | xml_element *root, void *vimage) |
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| 43 | { |
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| 44 | fz_pixmap *pixmap = vimage; |
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| 45 | float xs = pixmap->w * 96 / pixmap->xres; |
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| 46 | float ys = pixmap->h * 96 / pixmap->yres; |
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| 47 | fz_matrix im = fz_scale(xs, -ys); |
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| 48 | im.f = ys; |
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| 49 | ctm = fz_concat(im, ctm); |
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| 50 | fz_fill_image(ctx->dev, pixmap, ctm, ctx->opacity[ctx->opacity_top]); |
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| 51 | } |
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| 52 | |||
| 53 | static xps_part * |
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| 54 | xps_find_image_brush_source_part(xps_context *ctx, char *base_uri, xml_element *root) |
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| 55 | { |
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| 56 | char *image_source_att; |
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| 57 | char buf[1024]; |
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| 58 | char partname[1024]; |
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| 59 | char *image_name; |
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| 60 | char *profile_name; |
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| 61 | char *p; |
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| 62 | |||
| 63 | image_source_att = xml_att(root, "ImageSource"); |
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| 64 | if (!image_source_att) |
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| 65 | return NULL; |
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| 66 | |||
| 67 | /* "{ColorConvertedBitmap /Resources/Image.tiff /Resources/Profile.icc}" */ |
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| 68 | if (strstr(image_source_att, "{ColorConvertedBitmap") == image_source_att) |
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| 69 | { |
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| 70 | image_name = NULL; |
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| 71 | profile_name = NULL; |
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| 72 | |||
| 73 | fz_strlcpy(buf, image_source_att, sizeof buf); |
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| 74 | p = strchr(buf, ' '); |
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| 75 | if (p) |
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| 76 | { |
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| 77 | image_name = p + 1; |
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| 78 | p = strchr(p + 1, ' '); |
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| 79 | if (p) |
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| 80 | { |
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| 81 | *p = 0; |
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| 82 | profile_name = p + 1; |
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| 83 | p = strchr(p + 1, '}'); |
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| 84 | if (p) |
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| 85 | *p = 0; |
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| 86 | } |
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| 87 | } |
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| 88 | } |
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| 89 | else |
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| 90 | { |
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| 91 | image_name = image_source_att; |
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| 92 | profile_name = NULL; |
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| 93 | } |
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| 94 | |||
| 95 | if (!image_name) |
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| 96 | return NULL; |
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| 97 | |||
| 98 | xps_absolute_path(partname, base_uri, image_name, sizeof partname); |
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| 99 | |||
| 100 | return xps_read_part(ctx, partname); |
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| 101 | } |
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| 102 | |||
| 103 | void |
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| 104 | xps_parse_image_brush(xps_context *ctx, fz_matrix ctm, fz_rect area, |
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| 105 | char *base_uri, xps_resource *dict, xml_element *root) |
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| 106 | { |
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| 107 | xps_part *part; |
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| 108 | fz_pixmap *image; |
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| 109 | int code; |
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| 110 | |||
| 111 | part = xps_find_image_brush_source_part(ctx, base_uri, root); |
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| 112 | if (!part) { |
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| 113 | fz_warn("cannot find image source"); |
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| 114 | return; |
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| 115 | } |
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| 116 | |||
| 117 | code = xps_decode_image(&image, part->data, part->size); |
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| 118 | if (code < 0) { |
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| 119 | xps_free_part(ctx, part); |
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| 120 | fz_catch(-1, "cannot decode image resource"); |
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| 121 | return; |
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| 122 | } |
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| 123 | |||
| 124 | xps_parse_tiling_brush(ctx, ctm, area, base_uri, dict, root, xps_paint_image_brush, image); |
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| 125 | |||
| 126 | fz_drop_pixmap(image); |
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| 127 | xps_free_part(ctx, part); |
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| 128 | } |