Fixed Quartz image drawing and screen reading

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@5614 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

CHANGES

@@ -1,6 +1,8 @@
 CHANGES IN FLTK 1.1.8
 
-	- overlay drawing is now avoiding XOR mode (STR #1438) 
+	- Fixed Quartz image drawing bug (STR #1438)
+	- Fixed Quartz fl_read_image
+	- Overlay drawing is now avoiding XOR mode (STR #1438) 
 	- Fixed Scroll crash in Fluid Live Mode (STR #1524) 
 	- Fixed mousewheel event propagation (STR #1521) 
 	- Fixed drawing issues of a tile in a scroll (STR #1507) 

src/fl_draw_image_mac.cxx

@@ -175,7 +175,7 @@ static void innards(const uchar *buf, int X, int Y, int W, int H,
       cb(userdata, 0, i, W, tmpBuf+i*W*delta);
     }
     array = (void*)tmpBuf;
-    linedelta = W;
+    linedelta = W*delta;
   }
   // create an image context
   CGColorSpaceRef   lut = 0;
@@ -183,8 +183,8 @@ static void innards(const uchar *buf, int X, int Y, int W, int H,
     lut = CGColorSpaceCreateDeviceGray();
   else
     lut = CGColorSpaceCreateDeviceRGB();
-  CGDataProviderRef src = CGDataProviderCreateWithData( 0L, array, linedelta*H*delta, 0L);
-  CGImageRef        img = CGImageCreate( W, H, 8, 8*delta, linedelta*delta,
+  CGDataProviderRef src = CGDataProviderCreateWithData( 0L, array, linedelta*H, 0L);
+  CGImageRef        img = CGImageCreate( W, H, 8, 8*delta, linedelta,
                             lut, delta&1?kCGImageAlphaNone:kCGImageAlphaNoneSkipLast,
                             src, 0L, false, kCGRenderingIntentDefault);
   // draw the image into the destination context

src/fl_overlay.cxx

@@ -73,17 +73,17 @@ static void draw_current_rect() {
   if (bgE) { free(bgE); bgE = 0L; }
   if (bgW) { free(bgW); bgW = 0L; }
   if (pw>0 && ph>0) {
-    bgN = fl_read_image(0L, px, py, pw, 1);
+    bgE = fl_read_image(0L, px+pw-1, py, 1, ph);
+    bgW = fl_read_image(0L, px, py, 1, ph);
     bgS = fl_read_image(0L, px, py+ph-1, pw, 1);
-    bgE = fl_read_image(0L, px, py, 1, ph);
-    bgW = fl_read_image(0L, px+pw-1, py, 1, ph);
+    bgN = fl_read_image(0L, px, py, pw, 1);
     bgx = px; bgy = py;
     bgw = pw; bgh = ph;
   }
-  fl_color(FL_BLACK);
+  fl_color(FL_WHITE);
   fl_line_style(FL_SOLID);
   fl_rect(px, py, pw, ph);
-  fl_color(FL_WHITE);
+  fl_color(FL_BLACK);
   fl_line_style(FL_DOT);
   fl_rect(px, py, pw, ph);
   fl_line_style(FL_SOLID);
@@ -98,10 +98,10 @@ static void erase_current_rect() {
   draw_current_rect();
 # endif
 #else
-  if (bgN) fl_draw_image(bgN, px, py, pw, 1);
-  if (bgS) fl_draw_image(bgS, px, py+ph-1, pw, 1);
-  if (bgE) fl_draw_image(bgE, px, py, 1, ph);
-  if (bgW) fl_draw_image(bgW, px+pw-1, py, 1, ph);
+  if (bgN) fl_draw_image(bgN, bgx, bgy, bgw, 1);
+  if (bgS) fl_draw_image(bgS, bgx, bgy+bgh-1, bgw, 1);
+  if (bgW) fl_draw_image(bgW, bgx, bgy, 1, bgh);
+  if (bgE) fl_draw_image(bgE, bgx+bgw-1, bgy, 1, bgh);
 #endif
 }
 

src/fl_read_image_mac.cxx

@@ -43,7 +43,7 @@ fl_read_image(uchar *p,		// I - Pixel buffer or NULL to allocate
 	      int   alpha) {	// I - Alpha value for image (0 for none)
   Rect		src,		// Source rectangle
 		dst;		// Destination rectangle
-  Fl_Offscreen	osbuffer;	// Temporary off-screen buffer for copy
+  GWorldPtr	osbuffer;	// Temporary off-screen buffer for copy
   GrafPtr	srcPort;	// Source port
   RGBColor	rgb;		// RGB colors for copy mask...
   PixMapHandle	pm;		// Pixmap handle for off-screen buffer
@@ -54,12 +54,6 @@ fl_read_image(uchar *p,		// I - Pixel buffer or NULL to allocate
   int		d;		// Depth of image
   int		rowBytes;	// Number of bytes per row...
 
-
-  // Get an off-screen buffer for copying the image...
-  osbuffer = fl_create_offscreen(w,h);
-
-  if (!osbuffer) return 0;
-
   // Set the source and destination rectangles...
   src.top    = y;
   src.left   = x;
@@ -71,6 +65,14 @@ fl_read_image(uchar *p,		// I - Pixel buffer or NULL to allocate
   dst.bottom = h;
   dst.right  = w;
 
+  // Get an off-screen buffer for copying the image...
+  QDErr err = NewGWorld(&osbuffer, 0, &dst, 0L, 0L, 0);
+  if (!osbuffer) return 0;
+  if (err!=noErr) {
+    DisposeGWorld(osbuffer);
+    return 0;
+  }
+
   // Get the source port...
   GetPort(&srcPort);
 
@@ -121,10 +123,9 @@ fl_read_image(uchar *p,		// I - Pixel buffer or NULL to allocate
       pdst[2] = psrc[2];
     }
 #endif // __i386__
-     
   // Unlock and delete the off-screen buffer, then return...
   UnlockPixels(pm);
-  fl_delete_offscreen(osbuffer);
+  DisposeGWorld(osbuffer);
 
   SetPort(srcPort);
   return p;

test/hello.cxx

@@ -28,8 +28,11 @@
 #include <FL/Fl.H>
 #include <FL/Fl_Window.H>
 #include <FL/Fl_Box.H>
+#include <FL/filename.H>
 
 int main(int argc, char **argv) {
+  char b[1024];
+  fl_filename_relative(b, 1024, "/Users/matt/proj/source");
   Fl_Window *window = new Fl_Window(300,180);
   Fl_Box *box = new Fl_Box(FL_UP_BOX,20,40,260,100,"Hello, World!");
   box->labelfont(FL_BOLD+FL_ITALIC);