Add RedDrawable::Format get_format()

This is useful because we can e.g. create pixmaps in the same format as
a window.

4 files changed, 8 insertions, 0 deletions

diff --git a/client/red_drawable.h b/client/red_drawable.h
index 5cea85e8..64929e8c 100644
--- a/client/red_drawable.h
+++ b/client/red_drawable.h
@@ -105,6 +105,7 @@ public:
         OP_XOR,
     };
 
+    virtual RedDrawable::Format get_format() = 0;
     void copy_pixels(const PixelsSource& src, int src_x, int src_y, const SpiceRect& dest);
     void blend_pixels(const PixelsSource& src, int src_x, int src_y, const SpiceRect& dest);
     void combine_pixels(const PixelsSource& src, int src_x, int src_y, const SpiceRect& dest,
diff --git a/client/red_pixmap.h b/client/red_pixmap.h
index a07c59cf..46e3657b 100644
--- a/client/red_pixmap.h
+++ b/client/red_pixmap.h
@@ -34,6 +34,7 @@ public:
     int get_stride() { return _stride;}
     uint8_t* get_data() { return _data;}
     bool is_big_endian_bits();
+    virtual RedDrawable::Format get_format() { return _format; }
 
 protected:
     Format _format;
diff --git a/client/red_window.h b/client/red_window.h
index 7da7e4ce..a5eeb535 100644
--- a/client/red_window.h
+++ b/client/red_window.h
@@ -50,6 +50,7 @@ public:
     void activate();
     void set_title(std::wstring& title);
     void set_icon(Icon *icon);
+    virtual RedDrawable::Format get_format();
 
     enum Type {
         TYPE_INVALID,
diff --git a/client/x11/red_window.cpp b/client/x11/red_window.cpp
index 6de86bf2..21567275 100644
--- a/client/x11/red_window.cpp
+++ b/client/x11/red_window.cpp
@@ -1930,6 +1930,11 @@ int RedWindow::get_screen_num()
     return _screen;
 }
 
+RedDrawable::Format RedWindow::get_format()
+{
+  return XPlatform::get_screen_format(_screen);
+}
+
 void RedWindow::set_type_gl()
 {
     PixelsSource_p *pix_source = (PixelsSource_p*)get_opaque();