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-rw-r--r--src/cairo-gl-device.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/src/cairo-gl-device.c b/src/cairo-gl-device.c
index ce34779b..edc207e7 100644
--- a/src/cairo-gl-device.c
+++ b/src/cairo-gl-device.c
@@ -161,12 +161,22 @@ _cairo_gl_context_init (cairo_gl_context_t *ctx)
cairo_gl_dispatch_t *dispatch = &ctx->dispatch;
int gl_version = _cairo_gl_get_version ();
cairo_gl_flavor_t gl_flavor = _cairo_gl_get_flavor ();
+ const char *env;
int n;
_cairo_device_init (&ctx->base, &_cairo_gl_device_backend);
- //ctx->compositor = _cairo_gl_span_compositor_get ();
- ctx->compositor = _cairo_gl_msaa_compositor_get ();
+ ctx->compositor = _cairo_gl_span_compositor_get ();
+
+ /* XXX The choice of compositor should be made automatically at runtime.
+ * However, it is useful to force one particular compositor whilst
+ * testing.
+ */
+ env = getenv ("CAIRO_GL_COMPOSITOR");
+ if (env) {
+ if (strcmp(env, "msaa") == 0)
+ ctx->compositor = _cairo_gl_msaa_compositor_get ();
+ }
memset (ctx->glyph_cache, 0, sizeof (ctx->glyph_cache));
cairo_list_init (&ctx->fonts);