test: Add record-mesh

Test capture and replay of mesh patterns.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

test/Makefile.refs

@@ -1024,6 +1024,7 @@ REFERENCE_IMAGES = \
 	record-extend-reflect.ref.png \
 	record-extend-repeat.ref.png \
 	record-fill-alpha.ref.png \
+	record-mesh.ref.png \
 	record-paint-alpha-clip-mask.ref.png \
 	record-paint-alpha-clip.ref.png \
 	record-paint-alpha-solid-clip.ref.png \

test/Makefile.sources

@@ -234,6 +234,7 @@ test_sources = \
 	random-intersections-curves-nz.c		\
 	record.c					\
 	record-extend.c					\
+	record-mesh.c					\
 	recording-surface-pattern.c			\
 	recording-surface-extend.c			\
 	rectangle-rounding-error.c			\

test/record-mesh.c

@@ -0,0 +1,166 @@
+/*
+ * Copyright © 2007 Red Hat, Inc.
+ * Copyright © 2009 Adrian Johnson
+ * Copyright © 2011 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors:
+ *	Behdad Esfahbod <behdad@behdad.org>
+ *	Adrian Johnson <ajohnson@redneon.com>
+ *	Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+#include <math.h>
+#include "cairo-test.h"
+#include <stdio.h>
+
+#define PAT_WIDTH  170
+#define PAT_HEIGHT 170
+#define SIZE PAT_WIDTH
+#define PAD 2
+#define WIDTH (PAD + SIZE + PAD)
+#define HEIGHT WIDTH
+
+/* This test is designed to paint a mesh pattern. The mesh contains
+ * two overlapping patches */
+
+static cairo_pattern_t *
+mesh (void)
+{
+    cairo_pattern_t *pattern;
+
+    pattern = cairo_pattern_create_mesh ();
+
+    cairo_mesh_pattern_begin_patch (pattern);
+
+    cairo_mesh_pattern_move_to (pattern, 0, 0);
+    cairo_mesh_pattern_curve_to (pattern, 30, -30,  60,  30, 100, 0);
+    cairo_mesh_pattern_curve_to (pattern, 60,  30, 130,  60, 100, 100);
+    cairo_mesh_pattern_curve_to (pattern, 60,  70,  30, 130,   0, 100);
+    cairo_mesh_pattern_curve_to (pattern, 30,  70, -30,  30,   0, 0);
+
+    cairo_mesh_pattern_set_corner_color_rgb (pattern, 0, 1, 0, 0);
+    cairo_mesh_pattern_set_corner_color_rgb (pattern, 1, 0, 1, 0);
+    cairo_mesh_pattern_set_corner_color_rgb (pattern, 2, 0, 0, 1);
+    cairo_mesh_pattern_set_corner_color_rgb (pattern, 3, 1, 1, 0);
+
+    cairo_mesh_pattern_end_patch (pattern);
+
+    cairo_mesh_pattern_begin_patch (pattern);
+
+    cairo_mesh_pattern_move_to (pattern, 50, 50);
+    cairo_mesh_pattern_curve_to (pattern,  80,  20, 110,  80, 150, 50);
+    cairo_mesh_pattern_curve_to (pattern, 110,  80, 180, 110, 150, 150);
+    cairo_mesh_pattern_curve_to (pattern, 110, 120,  80, 180,  50, 150);
+    cairo_mesh_pattern_curve_to (pattern,  80, 120,  20,  80,  50, 50);
+
+    cairo_mesh_pattern_set_corner_color_rgba (pattern, 0, 1, 0, 0, 0.3);
+    cairo_mesh_pattern_set_corner_color_rgb  (pattern, 1, 0, 1, 0);
+    cairo_mesh_pattern_set_corner_color_rgba (pattern, 2, 0, 0, 1, 0.3);
+    cairo_mesh_pattern_set_corner_color_rgb  (pattern, 3, 1, 1, 0);
+
+    cairo_mesh_pattern_end_patch (pattern);
+
+    return pattern;
+}
+
+static cairo_t *
+draw (cairo_t *cr)
+{
+    cairo_pattern_t *source;
+
+    cairo_set_source_rgb (cr, 0, 1, 1);
+    cairo_paint (cr);
+
+    source = mesh ();
+    cairo_set_source (cr, source);
+    cairo_pattern_destroy (source);
+
+    cairo_rectangle (cr, 10, 10, SIZE-20, SIZE-20);
+    cairo_clip (cr);
+    cairo_paint (cr);
+
+    return cr;
+}
+
+static cairo_t *
+record_create (cairo_t *target)
+{
+    cairo_surface_t *surface;
+    cairo_t *cr;
+
+    surface = cairo_recording_surface_create (cairo_surface_get_content (cairo_get_target (target)), NULL);
+    cr = cairo_create (surface);
+    cairo_surface_destroy (surface);
+
+    return cr;
+}
+
+static cairo_surface_t *
+record_get (cairo_t *target)
+{
+    cairo_surface_t *surface;
+
+    surface = cairo_surface_reference (cairo_get_target (target));
+    cairo_destroy (target);
+
+    return surface;
+}
+
+static cairo_test_status_t
+record_replay (cairo_t *cr, cairo_t *(*func)(cairo_t *), int width, int height)
+{
+    cairo_surface_t *surface;
+    int x, y;
+
+    surface = record_get (func (record_create (cr)));
+
+    cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
+    cairo_set_source_surface (cr, surface, 0, 0);
+    cairo_surface_destroy (surface);
+    cairo_pattern_set_extend (cairo_get_source (cr), CAIRO_EXTEND_NONE);
+
+    for (y = 0; y < height; y += 2) {
+	for (x = 0; x < width; x += 2) {
+	    cairo_rectangle (cr, x, y, 2, 2);
+	    cairo_clip (cr);
+	    cairo_paint (cr);
+	    cairo_reset_clip (cr);
+	}
+    }
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+static cairo_test_status_t
+record_mesh (cairo_t *cr, int width, int height)
+{
+    return record_replay (cr, draw, width, height);
+}
+
+CAIRO_TEST (record_mesh,
+	    "Paint mesh pattern through a recording surface",
+	    "record,mesh,pattern", /* keywords */
+	    NULL, /* requirements */
+	    WIDTH, HEIGHT,
+	    NULL, record_mesh)
+