*/
+#if !defined USE_CAIRO_IMAGE_SURFACE && !defined NDEBUG
+#define OPTIONAL_CAIRO_IMAGE_SURFACE
+#endif
+
/** @file canvas/canvas.cc
* @brief Implementation of the main canvas classes.
*/
GtkCanvas::on_size_allocate (Gtk::Allocation& a)
{
EventBox::on_size_allocate (a);
-#ifdef USE_CAIRO_IMAGE_SURFACE
+#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE
+ if (getenv("ARDOUR_IMAGE_SURFACE")) {
+#endif
+#if defined USE_CAIRO_IMAGE_SURFACE || defined OPTIONAL_CAIRO_IMAGE_SURFACE
/* allocate an image surface as large as the canvas itself */
canvas_image.clear ();
canvas_image = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, a.get_width(), a.get_height());
#endif
+#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE
+ }
+#endif
}
/** Handler for GDK expose events.
bool
GtkCanvas::on_expose_event (GdkEventExpose* ev)
{
-#ifdef USE_CAIRO_IMAGE_SURFACE
+#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE
+ Cairo::RefPtr<Cairo::Context> draw_context;
+ Cairo::RefPtr<Cairo::Context> window_context;
+ if (getenv("ARDOUR_IMAGE_SURFACE")) {
+ if (!canvas_image) {
+ canvas_image = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, get_width(), get_height());
+ }
+ draw_context = Cairo::Context::create (canvas_image);
+ window_context = get_window()->create_cairo_context ();
+ } else {
+ draw_context = get_window()->create_cairo_context ();
+ }
+#elif defined USE_CAIRO_IMAGE_SURFACE
if (!canvas_image) {
canvas_image = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, get_width(), get_height());
}
g_free (rects);
}
-#ifdef USE_CAIRO_IMAGE_SURFACE
+#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE
+ if (getenv("ARDOUR_IMAGE_SURFACE")) {
+#endif
+#if defined USE_CAIRO_IMAGE_SURFACE || defined OPTIONAL_CAIRO_IMAGE_SURFACE
/* now blit our private surface back to the GDK one */
window_context->rectangle (ev->area.x, ev->area.y, ev->area.width, ev->area.height);
window_context->set_operator (Cairo::OPERATOR_SOURCE);
window_context->paint ();
#endif
+#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE
+ }
+#endif
return true;
}
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#if !defined USE_CAIRO_IMAGE_SURFACE && !defined NDEBUG
+#define OPTIONAL_CAIRO_IMAGE_SURFACE
+#endif
#include "gtkmm2ext/cairo_widget.h"
#include "gtkmm2ext/gui_thread.h"
bool
CairoWidget::on_expose_event (GdkEventExpose *ev)
{
-#ifdef USE_CAIRO_IMAGE_SURFACE
+#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE
+ Cairo::RefPtr<Cairo::Context> cr;
+ if (getenv("ARDOUR_IMAGE_SURFACE")) {
+ if (!image_surface) {
+ image_surface = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, get_width(), get_height());
+ }
+ cr = Cairo::Context::create (image_surface);
+ } else {
+ cr = get_window()->create_cairo_context ();
+ }
+#elif defined USE_CAIRO_IMAGE_SURFACE
if (!image_surface) {
image_surface = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, get_width(), get_height());
render (cr->cobj(), &expose_area);
-#ifdef USE_CAIRO_IMAGE_SURFACE
+#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE
+ if (getenv("ARDOUR_IMAGE_SURFACE")) {
+#endif
+#if defined USE_CAIRO_IMAGE_SURFACE || defined OPTIONAL_CAIRO_IMAGE_SURFACE
image_surface->flush();
/* now blit our private surface back to the GDK one */
cairo_context->set_operator (Cairo::OPERATOR_SOURCE);
cairo_context->paint ();
#endif
+#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE
+ }
+#endif
return true;
}
{
Gtk::EventBox::on_size_allocate (alloc);
-#ifdef USE_CAIRO_IMAGE_SURFACE
+#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE
+ if (getenv("ARDOUR_IMAGE_SURFACE")) {
+#endif
+#if defined USE_CAIRO_IMAGE_SURFACE || defined OPTIONAL_CAIRO_IMAGE_SURFACE
image_surface = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, alloc.get_width(), alloc.get_height());
#endif
+#ifdef OPTIONAL_CAIRO_IMAGE_SURFACE
+ }
+#endif
set_dirty ();
}