+void Framebuffer::blit_from(const Framebuffer &other, int sx0, int sy0, int sx1, int sy1, int dx0, int dy0, int dx1, int dy1, BufferBits bits, bool filter)
+{
+ static RequireExtension _ext("GL_EXT_framebuffer_blit");
+
+ const Framebuffer *old = current();
+ if(set_current(this))
+ {
+ glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, id);
+ if(dirty)
+ {
+ update_attachment(dirty);
+ dirty = 0;
+ }
+ }
+ if(old!=&other)
+ glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, other.id);
+
+ glBlitFramebufferEXT(sx0, sy0, sx1, sy1, dx0, dy0, dx1, dy1, bits, (filter ? GL_LINEAR : GL_NEAREST));
+
+ set_current(old);
+ glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, (old ? old->id : 0));
+}
+
+void Framebuffer::blit_from(const Framebuffer &other, int sx, int sy, unsigned wd, unsigned ht, int dx, int dy, BufferBits bits)
+{
+ blit_from(other, sx, sy, sx+wd, sy+ht, dx, dy, dx+wd, dy+ht, bits, false);
+}
+
+void Framebuffer::blit_from(const Framebuffer &other, BufferBits bits, bool filter)
+{
+ blit_from(other, 0, 0, other.width, other.height, 0, 0, width, height, bits, filter);
+}
+