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Fix "fl_draw_image() with horizontal flip reads out of bounds" (#1369)

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ManoloFLTK 2026-03-09 17:53:09 +01:00
parent 22dfda94c8
commit 432bffd134
2 changed files with 3 additions and 2 deletions
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2
src/Fl_Graphics_Driver.cxx
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@ -479,7 +479,7 @@ void Fl_Graphics_Driver::draw_image_general_(const uchar *buf, int X, int Y, int
data.buf = buf;
data.D_in = d_corrected;
data.D_out = d_out;
data.L = (L ? L : W * d_corrected);
data.L = (L ? L : W * abs(d_corrected));
if (alpha) d_out |= FL_IMAGE_WITH_ALPHA;
fl_graphics_driver->draw_image((Fl_Draw_Image_Cb)scan_cb, &data, X, Y, W, H, d_out);
} else

3
src/drivers/Quartz/Fl_Quartz_Graphics_Driver_image.cxx
View File

@ -103,7 +103,8 @@ static void innards(const uchar *buf, int X, int Y, int W, int H,
}
void Fl_Quartz_Graphics_Driver::draw_image(const uchar* buf, int x, int y, int w, int h, int d, int l){
d &= ~FL_IMAGE_WITH_ALPHA;
if (d > 0) d &= ~FL_IMAGE_WITH_ALPHA;
else if (!(d & FL_IMAGE_WITH_ALPHA)) d |= FL_IMAGE_WITH_ALPHA;
innards(buf,x,y,w,h,d,l,(d<3&&d>-3),0,0,gc_,this);
}
void Fl_Quartz_Graphics_Driver::draw_image(Fl_Draw_Image_Cb cb, void* data,