diff --git a/tests/conform/Makefile.am b/tests/conform/Makefile.am
index 7a5b6f971..442800d63 100644
--- a/tests/conform/Makefile.am
+++ b/tests/conform/Makefile.am
@@ -35,6 +35,7 @@ test_conformance_SOURCES = \
test-materials.c \
test-group.c \
test-actor-size.c \
+ test-texture-fbo.c \
$(NULL)
# For convenience, this provides a way to easily run individual unit tests:
diff --git a/tests/conform/test-conform-main.c b/tests/conform/test-conform-main.c
index 2b2624434..3379fbabf 100644
--- a/tests/conform/test-conform-main.c
+++ b/tests/conform/test-conform-main.c
@@ -147,6 +147,7 @@ main (int argc, char **argv)
TEST_CONFORM_SIMPLE ("/texture", test_backface_culling);
TEST_CONFORM_SIMPLE ("/texture", test_npot_texture);
TEST_CONFORM_SIMPLE ("/texture", test_premult);
+ TEST_CONFORM_SIMPLE ("/texture", test_texture_fbo);
TEST_CONFORM_SIMPLE ("/path", test_path);
diff --git a/tests/conform/test-texture-fbo.c b/tests/conform/test-texture-fbo.c
new file mode 100644
index 000000000..b11bde080
--- /dev/null
+++ b/tests/conform/test-texture-fbo.c
@@ -0,0 +1,255 @@
+
+#include <clutter/clutter.h>
+#include <cogl/cogl.h>
+
+#include "test-conform-common.h"
+
+#define SOURCE_SIZE 32
+#define SOURCE_DIVISIONS_X 2
+#define SOURCE_DIVISIONS_Y 2
+#define DIVISION_WIDTH (SOURCE_SIZE / SOURCE_DIVISIONS_X)
+#define DIVISION_HEIGHT (SOURCE_SIZE / SOURCE_DIVISIONS_Y)
+
+static const ClutterColor
+corner_colors[SOURCE_DIVISIONS_X * SOURCE_DIVISIONS_Y] =
+ {
+ { 0xff, 0x00, 0x00, 0xff },
+ { 0x00, 0xff, 0x00, 0xff },
+ { 0x00, 0x00, 0xff, 0xff },
+ { 0xff, 0x00, 0xff, 0xff }
+ };
+
+static const ClutterColor stage_color = { 0x0, 0x0, 0x0, 0xff };
+
+typedef struct _TestState
+{
+ ClutterActor *stage;
+ guint frame;
+} TestState;
+
+static ClutterActor *
+create_source (void)
+{
+ int x, y;
+ ClutterActor *group = clutter_group_new ();
+
+ /* Create a group with a different coloured rectangle at each
+ corner */
+ for (y = 0; y < SOURCE_DIVISIONS_Y; y++)
+ for (x = 0; x < SOURCE_DIVISIONS_X; x++)
+ {
+ ClutterActor *rect = clutter_rectangle_new ();
+ clutter_actor_set_size (rect, DIVISION_WIDTH, DIVISION_HEIGHT);
+ clutter_actor_set_position (rect,
+ DIVISION_WIDTH * x,
+ DIVISION_HEIGHT * y);
+ clutter_rectangle_set_color (CLUTTER_RECTANGLE (rect),
+ corner_colors +
+ (y * SOURCE_DIVISIONS_X + x));
+ clutter_container_add (CLUTTER_CONTAINER (group), rect, NULL);
+ }
+
+ return group;
+}
+
+static void
+pre_paint_clip_cb (void)
+{
+ /* Generate a clip path that clips out the top left division */
+ cogl_path_move_to (DIVISION_WIDTH, 0);
+ cogl_path_line_to (SOURCE_SIZE, 0);
+ cogl_path_line_to (SOURCE_SIZE, SOURCE_SIZE);
+ cogl_path_line_to (0, SOURCE_SIZE);
+ cogl_path_line_to (0, DIVISION_HEIGHT);
+ cogl_path_line_to (DIVISION_WIDTH, DIVISION_HEIGHT);
+ cogl_path_close ();
+ cogl_clip_push_from_path ();
+}
+
+static void
+post_paint_clip_cb (void)
+{
+ cogl_clip_pop ();
+}
+
+static gboolean
+validate_part (TestState *state,
+ int xpos, int ypos,
+ int clip_flags)
+{
+ int x, y;
+ gboolean pass = TRUE;
+
+ /* Check whether the center of each division is the right color */
+ for (y = 0; y < SOURCE_DIVISIONS_Y; y++)
+ for (x = 0; x < SOURCE_DIVISIONS_X; x++)
+ {
+ guchar *pixels;
+ const ClutterColor *correct_color;
+
+ /* Read the center pixels of this division */
+ pixels = clutter_stage_read_pixels (CLUTTER_STAGE (state->stage),
+ x * DIVISION_WIDTH +
+ DIVISION_WIDTH / 2 + xpos,
+ y * DIVISION_HEIGHT +
+ DIVISION_HEIGHT / 2 + ypos,
+ 1, 1);
+
+ /* If this division is clipped then it should be the stage
+ color */
+ if ((clip_flags & (1 << ((y * SOURCE_DIVISIONS_X) + x))))
+ correct_color = &stage_color;
+ else
+ /* Otherwise it should be the color for this division */
+ correct_color = corner_colors + (y * SOURCE_DIVISIONS_X) + x;
+
+ if (pixels == NULL ||
+ pixels[0] != correct_color->red ||
+ pixels[1] != correct_color->green ||
+ pixels[2] != correct_color->blue)
+ pass = FALSE;
+
+ g_free (pixels);
+ }
+
+ return pass;
+}
+
+static void
+validate_result (TestState *state)
+{
+ int ypos = 0;
+
+ if (g_test_verbose ())
+ g_print ("Testing onscreen clone...\n");
+ g_assert (validate_part (state, SOURCE_SIZE, ypos * SOURCE_SIZE, 0));
+ ypos++;
+
+#if 0 /* this doesn't work */
+ if (g_test_verbose ())
+ g_print ("Testing offscreen clone...\n");
+ g_assert (validate_part (state, SOURCE_SIZE, ypos * SOURCE_SIZE, 0));
+#endif
+ ypos++;
+
+ if (g_test_verbose ())
+ g_print ("Testing onscreen clone with rectangular clip...\n");
+ g_assert (validate_part (state, SOURCE_SIZE, ypos * SOURCE_SIZE, ~1));
+ ypos++;
+
+ if (g_test_verbose ())
+ g_print ("Testing onscreen clone with path clip...\n");
+ g_assert (validate_part (state, SOURCE_SIZE, ypos * SOURCE_SIZE, 1));
+ ypos++;
+
+ /* Comment this out if you want visual feedback of what this test
+ * paints.
+ */
+ clutter_main_quit ();
+}
+
+static void
+on_paint (ClutterActor *actor, TestState *state)
+{
+ int frame_num;
+
+ /* XXX: Experiments have shown that for some buggy drivers, when using
+ * glReadPixels there is some kind of race, so we delay our test for a
+ * few frames and a few seconds:
+ */
+ /* Need to increment frame first because clutter_stage_read_pixels
+ fires a redraw */
+ frame_num = state->frame++;
+ if (frame_num == 2)
+ validate_result (state);
+ else if (frame_num < 2)
+ g_usleep (G_USEC_PER_SEC);
+}
+
+static gboolean
+queue_redraw (gpointer stage)
+{
+ clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
+
+ return TRUE;
+}
+
+void
+test_texture_fbo (TestConformSimpleFixture *fixture,
+ gconstpointer data)
+{
+ TestState state;
+ guint idle_source;
+ ClutterActor *actor;
+ int ypos = 0;
+
+ state.frame = 0;
+
+ state.stage = clutter_stage_get_default ();
+
+ clutter_stage_set_color (CLUTTER_STAGE (state.stage), &stage_color);
+
+ /* Onscreen source with clone next to it */
+ actor = create_source ();
+ clutter_container_add (CLUTTER_CONTAINER (state.stage), actor, NULL);
+ clutter_actor_set_position (actor, 0, ypos * SOURCE_SIZE);
+ actor = clutter_texture_new_from_actor (actor);
+ clutter_actor_set_position (actor, SOURCE_SIZE, ypos * SOURCE_SIZE);
+ clutter_container_add (CLUTTER_CONTAINER (state.stage), actor, NULL);
+ ypos++;
+
+ /* Offscreen source with clone */
+#if 0 /* this doesn't work */
+ actor = create_source ();
+ actor = clutter_texture_new_from_actor (actor);
+ clutter_actor_set_position (actor, SOURCE_SIZE, ypos * SOURCE_SIZE);
+ clutter_container_add (CLUTTER_CONTAINER (state.stage), actor, NULL);
+#endif
+ ypos++;
+
+ /* Source clipped to the top left division */
+ actor = create_source ();
+ clutter_container_add (CLUTTER_CONTAINER (state.stage), actor, NULL);
+ clutter_actor_set_position (actor, 0, ypos * SOURCE_SIZE);
+ clutter_actor_set_clip (actor, 0, 0, DIVISION_WIDTH, DIVISION_HEIGHT);
+ actor = clutter_texture_new_from_actor (actor);
+ clutter_actor_set_position (actor, SOURCE_SIZE, ypos * SOURCE_SIZE);
+ clutter_container_add (CLUTTER_CONTAINER (state.stage), actor, NULL);
+ ypos++;
+
+ /* Source clipped to everything but top left division using a
+ path */
+ actor = create_source ();
+ clutter_container_add (CLUTTER_CONTAINER (state.stage), actor, NULL);
+ clutter_actor_set_position (actor, 0, ypos * SOURCE_SIZE);
+ g_signal_connect (actor, "paint",
+ G_CALLBACK (pre_paint_clip_cb), NULL);
+ g_signal_connect_after (actor, "paint",
+ G_CALLBACK (post_paint_clip_cb), NULL);
+ actor = clutter_texture_new_from_actor (actor);
+ clutter_actor_set_position (actor, SOURCE_SIZE, ypos * SOURCE_SIZE);
+ clutter_container_add (CLUTTER_CONTAINER (state.stage), actor, NULL);
+ ypos++;
+
+ /* We force continuous redrawing of the stage, since we need to skip
+ * the first few frames, and we wont be doing anything else that
+ * will trigger redrawing. */
+ idle_source = g_idle_add (queue_redraw, state.stage);
+
+ g_signal_connect_after (state.stage, "paint", G_CALLBACK (on_paint), &state);
+
+ clutter_actor_show_all (state.stage);
+
+ clutter_main ();
+
+ g_source_remove (idle_source);
+
+ /* Remove all of the actors from the stage */
+ clutter_container_foreach (CLUTTER_CONTAINER (state.stage),
+ (ClutterCallback) clutter_actor_destroy,
+ NULL);
+
+ if (g_test_verbose ())
+ g_print ("OK\n");
+}
+