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Quartz: 

- support for Fl_RGB_Image, including alpha rendering


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@3794 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Matthias Melcher 2004-08-27 21:57:18 +00:00
parent bc704ad62f
commit 970bd86433
1 changed files with 21 additions and 36 deletions
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57
src/Fl_Image.cxx
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@ -1,5 +1,5 @@
//
// "$Id: Fl_Image.cxx,v 1.5.2.3.2.33 2004/08/25 00:20:25 matthiaswm Exp $"
// "$Id: Fl_Image.cxx,v 1.5.2.3.2.34 2004/08/27 21:57:18 matthiaswm Exp $"
//
// Image drawing code for the Fast Light Tool Kit (FLTK).
//
@ -124,6 +124,10 @@ Fl_RGB_Image::~Fl_RGB_Image() {
}
void Fl_RGB_Image::uncache() {
#ifdef __APPLE_QUARTZ__
if (id)
CGImageRelease((CGImageRef)id);
#elif
if (id) {
fl_delete_offscreen((Fl_Offscreen)id);
id = 0;
@ -133,6 +137,7 @@ void Fl_RGB_Image::uncache() {
fl_delete_bitmask((Fl_Bitmask)mask);
mask = 0;
}
#endif
}
Fl_Image *Fl_RGB_Image::copy(int W, int H) {
@ -309,6 +314,15 @@ void Fl_RGB_Image::draw(int XP, int YP, int WP, int HP, int cx, int cy) {
if (cy+H > h()) H = h()-cy;
if (H <= 0) return;
if (!id) {
#ifdef __APPLE_QUARTZ__
CGColorSpaceRef lut = CGColorSpaceCreateDeviceRGB();
CGDataProviderRef src = CGDataProviderCreateWithData( 0L, array, w()*h()*d(), 0L);
id = CGImageCreate( w(), h(), 8, d()*8, ld()?ld():w()*d(),
lut, (d()&1)?kCGImageAlphaNone:kCGImageAlphaLast,
src, 0L, false, kCGRenderingIntentDefault);
CGColorSpaceRelease(lut);
CGDataProviderRelease(src);
#else
id = fl_create_offscreen(w(), h());
fl_begin_offscreen((Fl_Offscreen)id);
fl_draw_image(array, 0, 0, w(), h(), d(), ld());
@ -317,6 +331,7 @@ void Fl_RGB_Image::draw(int XP, int YP, int WP, int HP, int cx, int cy) {
if (d() == 2 || d() == 4) {
mask = fl_create_alphamask(w(), h(), d(), ld(), array);
}
#endif
}
#ifdef WIN32
if (mask) {
@ -365,40 +380,10 @@ void Fl_RGB_Image::draw(int XP, int YP, int WP, int HP, int cx, int cy) {
fl_copy_offscreen(X, Y, W, H, (Fl_Offscreen)id, cx, cy);
}
#elif defined(__APPLE_QUARTZ__)
#warning quartz
if (mask) {
Rect src, dst;
// MRS: STR #114 says we should be using cx, cy, W, and H...
// src.left = 0; src.right = w();
// src.top = 0; src.bottom = h();
// dst.left = X; dst.right = X+w();
// dst.top = Y; dst.bottom = Y+h();
src.left = cx; src.right = cx+W;
src.top = cy; src.bottom = cy+H;
dst.left = X; dst.right = X+W;
dst.top = Y; dst.bottom = Y+H;
RGBColor rgb;
rgb.red = 0xffff; rgb.green = 0xffff; rgb.blue = 0xffff;
RGBBackColor(&rgb);
rgb.red = 0x0000; rgb.green = 0x0000; rgb.blue = 0x0000;
RGBForeColor(&rgb);
# if 0
// MRS: This *should* work, but doesn't on my system (iBook); change to
// "#if 1" and restore the corresponding code in Fl_Bitmap.cxx
// to test the real alpha channel support.
CopyDeepMask(GetPortBitMapForCopyBits((GrafPtr)id),
GetPortBitMapForCopyBits((GrafPtr)mask),
GetPortBitMapForCopyBits(GetWindowPort(fl_window)),
&src, &src, &dst, blend, NULL);
# else // Fallback to screen-door transparency...
CopyMask(GetPortBitMapForCopyBits((GrafPtr)id),
GetPortBitMapForCopyBits((GrafPtr)mask),
GetPortBitMapForCopyBits(GetWindowPort(fl_window)),
&src, &src, &dst);
# endif // 0
} else {
fl_copy_offscreen(X, Y, W, H, (Fl_Offscreen)id, cx, cy);
# warning : Quartz implementation not finished yet
if (id && fl_gc) {
CGRect rect = { X, Y, w(), h() };
CGContextDrawImage(fl_gc, rect, (CGImageRef)id);
}
#else
if (mask) {
@ -433,5 +418,5 @@ void Fl_RGB_Image::label(Fl_Menu_Item* m) {
//
// End of "$Id: Fl_Image.cxx,v 1.5.2.3.2.33 2004/08/25 00:20:25 matthiaswm Exp $".
// End of "$Id: Fl_Image.cxx,v 1.5.2.3.2.34 2004/08/27 21:57:18 matthiaswm Exp $".
//