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Rewrite Fl_Gl_Device_Plugin::print() without any platform-specific code.

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git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11325 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Manolo Gouy
2016-03-08 22:22:03 +00:00
parent 459b0d1d07
commit 0b751e8175
1 changed files with 15 additions and 29 deletions
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src/Fl_Gl_Device_Plugin.cxx
+15 -29
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@@ -22,6 +22,7 @@
#include <FL/Fl_Gl_Window.H>
#include "Fl_Gl_Choice.H"
#include <FL/Fl_RGB_Image.H>
#include <FL/Fl_Shared_Image.H>
#include "FL/Fl.H"
#if defined(WIN32) || defined(__APPLE__) // PORTME: Fl_Surface_Driver - platform OpenGL management
@@ -97,13 +98,6 @@ static Fl_RGB_Image* capture_gl_rectangle(Fl_Gl_Window *glw, int x, int y, int w
return img;
}
#ifdef __APPLE__ // PORTME: Fl_Surface_Driver - platform OpenGL management
static void imgProviderReleaseData (void *info, const void *data, size_t size)
{
delete (Fl_RGB_Image *)info;
}
#endif
/**
This class will make sure that OpenGL printing/screen capture is available if fltk_gl
was linked to the program
@@ -116,29 +110,21 @@ public:
Fl_Gl_Window *glw = w->as_gl_window();
if (!glw) return 0;
Fl_RGB_Image *img = capture_gl_rectangle(glw, 0, 0, glw->w(), glw->h());
#ifdef __APPLE__ // PORTME: Fl_Surface_Driver - platform OpenGL management
if (Fl_Surface_Device::surface()->driver()->has_feature(Fl_Graphics_Driver::NATIVE)) {
// convert the image to CGImage, and draw it at full res (useful on retina display)
CGColorSpaceRef cSpace = CGColorSpaceCreateDeviceRGB();
CGDataProviderRef provider = CGDataProviderCreateWithData(img, img->array, img->ld() * img->h(), imgProviderReleaseData);
CGImageRef cgimg = CGImageCreate(img->w(), img->h(), 8, 24, img->ld(), cSpace,
(CGBitmapInfo)(kCGImageAlphaNone),
provider, NULL, false, kCGRenderingIntentDefault);
CGColorSpaceRelease(cSpace);
CGDataProviderRelease(provider);
CGContextDrawImage((CGContextRef)Fl_Surface_Device::surface()->driver()->gc(),
CGRectMake(0, 0, glw->w(), glw->h()), cgimg);
CFRelease(cgimg);
return 1;
} else if (img->w() > glw->w()) {
Fl_RGB_Image *img2 = (Fl_RGB_Image*)img->copy(glw->w(), glw->h());
delete img;
img = img2;
}
#endif
// turn img upside-down
int ld = img->ld() ? img->ld() : img->w() * img->d();
fl_draw_image(img->array + (img->h() - 1) * ld, x, y , img->w(), img->h(), 3, - ld);
delete img;
uchar *tmp = new uchar[ld];
uchar *p = (uchar*)img->array ;
uchar *q = (uchar*)img->array + (img->h()-1)*ld;
for (int i = 0; i < img->h()/2; i++, p += ld, q -= ld) {
memcpy(tmp, p, ld);
memcpy(p, q, ld);
memcpy(q, tmp, ld);
}
delete[] tmp;
Fl_Shared_Image *shared = Fl_Shared_Image::get(img);
shared->scale(glw->w(), glw->h());
shared->draw(x, y);
shared->release();
return 1;
}
virtual Fl_RGB_Image* rectangle_capture(Fl_Widget *widget, int x, int y, int w, int h) {