[test] Create a new fallback surface to exercise 16-bit paths.

Add a variation of test-fallback-surface that forces the use of a 16-bit
pixman format code instead of the standard 32-bit types. This creates an
image surface akin to the fallbacks used with low bit-depth xservers.

3 files changed, 45 insertions, 0 deletions

diff --git a/boilerplate/cairo-boilerplate-test-surfaces-private.h b/boilerplate/cairo-boilerplate-test-surfaces-private.h
index 481b531e7..24a1ae81a 100644
--- a/boilerplate/cairo-boilerplate-test-surfaces-private.h
+++ b/boilerplate/cairo-boilerplate-test-surfaces-private.h
@@ -38,6 +38,17 @@ _cairo_boilerplate_test_fallback_create_surface (const char			 *name,
 						 int                              id,
 						 void				**closure);
 
+cairo_surface_t *
+_cairo_boilerplate_test_fallback16_create_surface (const char			 *name,
+						 cairo_content_t		  content,
+						 int				  width,
+						 int				  height,
+						 int				  max_width,
+						 int				  max_height,
+						 cairo_boilerplate_mode_t	  mode,
+						 int                              id,
+						 void				**closure);
+
 
 cairo_surface_t *
 _cairo_boilerplate_test_meta_create_surface (const char			 *name,
diff --git a/boilerplate/cairo-boilerplate-test-surfaces.c b/boilerplate/cairo-boilerplate-test-surfaces.c
index f6fd63af8..644b2787b 100644
--- a/boilerplate/cairo-boilerplate-test-surfaces.c
+++ b/boilerplate/cairo-boilerplate-test-surfaces.c
@@ -28,6 +28,7 @@
 #include "cairo-boilerplate-test-surfaces-private.h"
 
 #include <test-fallback-surface.h>
+#include <test-fallback16-surface.h>
 #include <test-meta-surface.h>
 #include <test-paginated-surface.h>
 
@@ -49,6 +50,21 @@ _cairo_boilerplate_test_fallback_create_surface (const char			 *name,
 }
 
 cairo_surface_t *
+_cairo_boilerplate_test_fallback16_create_surface (const char			 *name,
+						   cairo_content_t		  content,
+						   int				  width,
+						   int				  height,
+						   int				  max_width,
+						   int				  max_height,
+						   cairo_boilerplate_mode_t	  mode,
+						   int                              id,
+						   void				**closure)
+{
+    *closure = NULL;
+    return _cairo_test_fallback16_surface_create (content, width, height);
+}
+
+cairo_surface_t *
 _cairo_boilerplate_test_meta_create_surface (const char			 *name,
 					     cairo_content_t		  content,
 					     int			  width,
diff --git a/boilerplate/cairo-boilerplate.c b/boilerplate/cairo-boilerplate.c
index fcc05b877..da2a61816 100644
--- a/boilerplate/cairo-boilerplate.c
+++ b/boilerplate/cairo-boilerplate.c
@@ -311,6 +311,24 @@ static cairo_boilerplate_target_t targets[] =
 	cairo_surface_write_to_png
     },
     {
+	"test-fallback16", "image", NULL,
+	CAIRO_INTERNAL_SURFACE_TYPE_TEST_FALLBACK,
+	CAIRO_CONTENT_COLOR_ALPHA, 0,
+	_cairo_boilerplate_test_fallback16_create_surface, NULL,
+	NULL,
+	_cairo_boilerplate_get_image_surface,
+	cairo_surface_write_to_png
+    },
+    {
+	"test-fallback16", "image", NULL,
+	CAIRO_INTERNAL_SURFACE_TYPE_TEST_FALLBACK,
+	CAIRO_CONTENT_COLOR, 0,
+	_cairo_boilerplate_test_fallback16_create_surface, NULL,
+	NULL,
+	_cairo_boilerplate_get_image_surface,
+	cairo_surface_write_to_png
+    },
+    {
 	"test-meta", "image", NULL,
 	CAIRO_INTERNAL_SURFACE_TYPE_TEST_META,
 	CAIRO_CONTENT_COLOR_ALPHA, 0,