test: Merge text-antialias-*

The test-antialias-* tests perform the same operation with just a
different antialias flag. Sharing the code ensures that they are kept
in sync and permits adding new flags combinations easily.

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=14268

4 files changed, 37 insertions, 159 deletions

diff --git a/test/Makefile.sources b/test/Makefile.sources
index c5a949ae..70273896 100644
--- a/test/Makefile.sources
+++ b/test/Makefile.sources
@@ -273,9 +273,7 @@ test_sources = \
 	surface-pattern-scale-down.c			\
 	surface-pattern-scale-down-extend.c		\
 	surface-pattern-scale-up.c			\
-	text-antialias-gray.c				\
-	text-antialias-none.c				\
-	text-antialias-subpixel.c			\
+	text-antialias.c				\
 	text-cache-crash.c				\
 	text-glyph-range.c				\
 	text-pattern.c					\
diff --git a/test/text-antialias-gray.c b/test/text-antialias-gray.c
deleted file mode 100644
index 84143f04..00000000
--- a/test/text-antialias-gray.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Copyright © 2005 Red Hat, Inc.
- *
- * Permission to use, copy, modify, distribute, and sell this software
- * and its documentation for any purpose is hereby granted without
- * fee, provided that the above copyright notice appear in all copies
- * and that both that copyright notice and this permission notice
- * appear in supporting documentation, and that the name of
- * Red Hat, Inc. not be used in advertising or publicity pertaining to
- * distribution of the software without specific, written prior
- * permission. Red Hat, Inc. makes no representations about the
- * suitability of this software for any purpose.  It is provided "as
- * is" without express or implied warranty.
- *
- * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
- * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
- * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
- * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
- * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Author: Carl D. Worth <cworth@cworth.org>
- */
-
-#include "cairo-test.h"
-
-#define WIDTH  31
-#define HEIGHT 22
-#define TEXT_SIZE 12
-
-static cairo_test_status_t
-draw (cairo_t *cr, int width, int height)
-{
-    cairo_text_extents_t extents;
-    cairo_font_options_t *font_options;
-    const char black[] = "black", blue[] = "blue";
-
-    /* We draw in the default black, so paint white first. */
-    cairo_save (cr);
-    cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */
-    cairo_paint (cr);
-    cairo_restore (cr);
-
-    cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans",
-			    CAIRO_FONT_SLANT_NORMAL,
-			    CAIRO_FONT_WEIGHT_NORMAL);
-    cairo_set_font_size (cr, TEXT_SIZE);
-
-    font_options = cairo_font_options_create ();
-    cairo_get_font_options (cr, font_options);
-    cairo_font_options_set_antialias (font_options, CAIRO_ANTIALIAS_GRAY);
-    cairo_set_font_options (cr, font_options);
-
-    cairo_font_options_destroy (font_options);
-
-    cairo_set_source_rgb (cr, 0, 0, 0); /* black */
-    cairo_text_extents (cr, black, &extents);
-    cairo_move_to (cr, -extents.x_bearing, -extents.y_bearing);
-    cairo_show_text (cr, black);
-    cairo_translate (cr, 0, -extents.y_bearing + 1);
-
-    cairo_set_source_rgb (cr, 0, 0, 1); /* blue */
-    cairo_text_extents (cr, blue, &extents);
-    cairo_move_to (cr, -extents.x_bearing, -extents.y_bearing);
-    cairo_show_text (cr, blue);
-
-    return CAIRO_TEST_SUCCESS;
-}
-
-CAIRO_TEST (text_antialias_gray,
-	    "Tests text rendering with grayscale antialiasing",
-	    "text", /* keywords */
-	    "target=raster", /* requirements */
-	    WIDTH, HEIGHT,
-	    NULL, draw)
diff --git a/test/text-antialias-none.c b/test/text-antialias-none.c
deleted file mode 100644
index dbfcdee0..00000000
--- a/test/text-antialias-none.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Copyright © 2005 Red Hat, Inc.
- *
- * Permission to use, copy, modify, distribute, and sell this software
- * and its documentation for any purpose is hereby granted without
- * fee, provided that the above copyright notice appear in all copies
- * and that both that copyright notice and this permission notice
- * appear in supporting documentation, and that the name of
- * Red Hat, Inc. not be used in advertising or publicity pertaining to
- * distribution of the software without specific, written prior
- * permission. Red Hat, Inc. makes no representations about the
- * suitability of this software for any purpose.  It is provided "as
- * is" without express or implied warranty.
- *
- * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
- * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
- * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
- * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
- * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Author: Carl D. Worth <cworth@cworth.org>
- */
-
-#include "cairo-test.h"
-
-#define WIDTH  31
-#define HEIGHT 22
-#define TEXT_SIZE 12
-
-static cairo_test_status_t
-draw (cairo_t *cr, int width, int height)
-{
-    cairo_text_extents_t extents;
-    cairo_font_options_t *font_options;
-    const char black[] = "black", blue[] = "blue";
-
-    /* We draw in the default black, so paint white first. */
-    cairo_save (cr);
-    cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */
-    cairo_paint (cr);
-    cairo_restore (cr);
-
-    cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans",
-			    CAIRO_FONT_SLANT_NORMAL,
-			    CAIRO_FONT_WEIGHT_NORMAL);
-    cairo_set_font_size (cr, TEXT_SIZE);
-
-    font_options = cairo_font_options_create ();
-    cairo_get_font_options (cr, font_options);
-    cairo_font_options_set_antialias (font_options, CAIRO_ANTIALIAS_NONE);
-    cairo_set_font_options (cr, font_options);
-
-    cairo_font_options_destroy (font_options);
-
-    cairo_set_source_rgb (cr, 0, 0, 0); /* black */
-    cairo_text_extents (cr, black, &extents);
-    cairo_move_to (cr, -extents.x_bearing, -extents.y_bearing);
-    cairo_show_text (cr, black);
-    cairo_translate (cr, 0, -extents.y_bearing + 1);
-
-    cairo_set_source_rgb (cr, 0, 0, 1); /* blue */
-    cairo_text_extents (cr, blue, &extents);
-    cairo_move_to (cr, -extents.x_bearing, -extents.y_bearing);
-    cairo_show_text (cr, blue);
-
-    return CAIRO_TEST_SUCCESS;
-}
-
-CAIRO_TEST (text_antialias_none,
-	    "Tests text rendering with no antialiasing",
-	    "text", /* keywords */
-	    "target=raster", /* requirements */
-	    WIDTH, HEIGHT,
-	    NULL, draw)
diff --git a/test/text-antialias-subpixel.c b/test/text-antialias.c
index e6eadc2a..7d338925 100644
--- a/test/text-antialias-subpixel.c
+++ b/test/text-antialias.c
@@ -30,13 +30,13 @@
 #define TEXT_SIZE 12
 
 static cairo_test_status_t
-draw (cairo_t *cr, int width, int height)
+draw (cairo_t *cr, cairo_antialias_t antialias)
 {
     cairo_text_extents_t extents;
     cairo_font_options_t *font_options;
     const char black[] = "black", blue[] = "blue";
 
-    cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
+    cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */
     cairo_paint (cr);
 
     cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans",
@@ -46,7 +46,7 @@ draw (cairo_t *cr, int width, int height)
 
     font_options = cairo_font_options_create ();
     cairo_get_font_options (cr, font_options);
-    cairo_font_options_set_antialias (font_options, CAIRO_ANTIALIAS_SUBPIXEL);
+    cairo_font_options_set_antialias (font_options, antialias);
     cairo_font_options_set_subpixel_order (font_options, CAIRO_SUBPIXEL_ORDER_RGB);
     cairo_set_font_options (cr, font_options);
 
@@ -66,9 +66,41 @@ draw (cairo_t *cr, int width, int height)
     return CAIRO_TEST_SUCCESS;
 }
 
+static cairo_test_status_t
+draw_gray (cairo_t *cr, int width, int height)
+{
+    return draw (cr, CAIRO_ANTIALIAS_GRAY);
+}
+
+static cairo_test_status_t
+draw_none (cairo_t *cr, int width, int height)
+{
+    return draw (cr, CAIRO_ANTIALIAS_NONE);
+}
+
+static cairo_test_status_t
+draw_subpixel (cairo_t *cr, int width, int height)
+{
+    return draw (cr, CAIRO_ANTIALIAS_SUBPIXEL);
+}
+
+CAIRO_TEST (text_antialias_gray,
+	    "Tests text rendering with grayscale antialiasing",
+	    "text", /* keywords */
+	    "target=raster", /* requirements */
+	    WIDTH, HEIGHT,
+	    NULL, draw_gray)
+
+CAIRO_TEST (text_antialias_none,
+	    "Tests text rendering with no antialiasing",
+	    "text", /* keywords */
+	    "target=raster", /* requirements */
+	    WIDTH, HEIGHT,
+	    NULL, draw_none)
+
 CAIRO_TEST (text_antialias_subpixel,
 	    "Tests text rendering with subpixel antialiasing",
 	    "text", /* keywords */
 	    "target=raster", /* requirements */
 	    WIDTH, HEIGHT,
-	    NULL, draw)
+	    NULL, draw_subpixel)