diff options
Diffstat (limited to 'src/fl_read_image_mac.cxx')
| -rw-r--r-- | src/fl_read_image_mac.cxx | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/src/fl_read_image_mac.cxx b/src/fl_read_image_mac.cxx index 3df921173..08e4361f7 100644 --- a/src/fl_read_image_mac.cxx +++ b/src/fl_read_image_mac.cxx @@ -26,9 +26,9 @@ // #include <config.h> - -// warning: this function is only implemented in Quickdraw. The function -// below may not work If FLTK is compiled with Quartz enabled +#ifdef __APPLE_COCOA__ +extern unsigned char *MACbitmapFromRectOfWindow(Fl_Window *win, int x, int y, int w, int h, int *bytesPerPixel); +#endif // // 'fl_read_image()' - Read an image from the current window. @@ -41,6 +41,29 @@ fl_read_image(uchar *p, // I - Pixel buffer or NULL to allocate int w, // I - Width of area to read int h, // I - Height of area to read int alpha) { // I - Alpha value for image (0 for none) +#if defined(__APPLE_COCOA__) + Fl_Window *window = Fl_Window::current(); + while(window->window()) window = window->window(); + int delta; + uchar *base = MACbitmapFromRectOfWindow(window,x,y,w,h,&delta); + int rowBytes = delta*w; + // Allocate the image data array as needed... + int d = alpha ? 4 : 3; + if (!p) p = new uchar[w * h * d]; + // Initialize the default colors/alpha in the whole image... + memset(p, alpha, w * h * d); + // Copy the image from the off-screen buffer to the memory buffer. + int idx, idy; // Current X & Y in image + uchar *pdst, *psrc; + for (idy = 0, pdst = p; idy < h; idy ++) { + for (idx = 0, psrc = base + idy * rowBytes; idx < w; idx ++, psrc += delta, pdst += d) { +/*R*/ pdst[0] = psrc[0]; +/*G*/ pdst[1] = psrc[1]; +/*B*/ pdst[2] = psrc[2]; + } + } +delete base; +#else Rect src, // Source rectangle dst; // Destination rectangle GWorldPtr osbuffer; // Temporary off-screen buffer for copy @@ -128,7 +151,8 @@ fl_read_image(uchar *p, // I - Pixel buffer or NULL to allocate DisposeGWorld(osbuffer); SetPort(srcPort); - return p; +#endif +return p; } |