diff options
| -rw-r--r-- | CHANGES | 2 | ||||
| -rw-r--r-- | src/Fl_GIF_Image.cxx | 9 |
2 files changed, 9 insertions, 2 deletions
@@ -2,6 +2,8 @@ CHANGES IN FLTK 1.1.7 - Documentation fixes (STR #648, STR #692, STR #730, STR #744, STR #745, STR #942, STR #931) + - Fl_GIF_Image did not handle images with an incorrect + number of data bits (STR #914) - Fixed some plastic drawing artifacts (STR #906) - Fl_Help_View now draws the box outside the scrollbars, like the other scrollable widgets (STR #871) diff --git a/src/Fl_GIF_Image.cxx b/src/Fl_GIF_Image.cxx index be8014cf7..5d6fc9af6 100644 --- a/src/Fl_GIF_Image.cxx +++ b/src/Fl_GIF_Image.cxx @@ -175,7 +175,6 @@ Fl_GIF_Image::Fl_GIF_Image(const char *infname) : Fl_Pixmap((char *const*)0) { if (ch&0x80) { // read local color map int n = 2<<(ch&7); - if (n > ColorMapSize) ColorMapSize = n; for (i=0; i < n; i++) { Red[i] = NEXTBYTE; Green[i] = NEXTBYTE; @@ -183,7 +182,6 @@ Fl_GIF_Image::Fl_GIF_Image(const char *infname) : Fl_Pixmap((char *const*)0) { } } CodeSize = NEXTBYTE+1; - break; // okay, this is the image we want } else { Fl::warning("%s: unknown gif code 0x%02x", infname, i); @@ -194,6 +192,13 @@ Fl_GIF_Image::Fl_GIF_Image(const char *infname) : Fl_Pixmap((char *const*)0) { while (blocklen>0) {while (blocklen--) {NEXTBYTE;} blocklen=NEXTBYTE;} } + if (BitsPerPixel >= CodeSize) + { + // Workaround for broken GIF files... + BitsPerPixel = CodeSize - 1; + ColorMapSize = 1 << BitsPerPixel; + } + uchar *Image = new uchar[Width*Height]; int YC = 0, Pass = 0; /* Used to de-interlace the picture */ |