gl: Add cairo_gl_surface_get_texture()

2 files changed, 14 insertions, 0 deletions

diff --git a/src/cairo-gl-surface.c b/src/cairo-gl-surface.c
index b16e1d26..64c12397 100644
--- a/src/cairo-gl-surface.c
+++ b/src/cairo-gl-surface.c
@@ -690,6 +690,17 @@ cairo_gl_surface_get_height (cairo_surface_t *abstract_surface)
     return surface->height;
 }
 
+unsigned int
+cairo_gl_surface_get_texture (cairo_surface_t *abstract_surface)
+{
+    cairo_gl_surface_t *surface = (cairo_gl_surface_t *) abstract_surface;
+
+    if (! _cairo_surface_is_gl (abstract_surface))
+	return 0;
+
+    return surface->tex;
+}
+
 void
 cairo_gl_surface_swapbuffers (cairo_surface_t *abstract_surface)
 {
diff --git a/src/cairo-gl.h b/src/cairo-gl.h
index b9ee88a3..50e14994 100644
--- a/src/cairo-gl.h
+++ b/src/cairo-gl.h
@@ -57,6 +57,9 @@ cairo_gl_surface_get_width (cairo_surface_t *abstract_surface);
 cairo_public int
 cairo_gl_surface_get_height (cairo_surface_t *abstract_surface);
 
+cairo_public unsigned int
+cairo_gl_surface_get_texture (cairo_surface_t *abstract_surface);
+
 cairo_public void
 cairo_gl_surface_swapbuffers (cairo_surface_t *surface);