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+/*
+ * Copyright © 2005 Red Hat, Inc.
+ * Copyright © 2011 Intel Corporation
+ *
+ * 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.
+ *
+ * Authors:
+ * Carl D. Worth <cworth@cworth.org>
+ * Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+#include "cairo-test.h"
+
+#define TEXT_SIZE 12
+#define SIZE 60 /* needs to be big to check large area effects (dithering) */
+#define PAD 2
+
+#define TT_SIZE 100
+#define TT_PAD 5
+#define TT_FONT_SIZE 32.0
+
+#define GENERATE_REF 0
+
+static uint32_t data[16] = {
+ 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000,
+ 0xffffffff, 0xffffffff, 0xffff0000, 0xffff0000,
+
+ 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff,
+ 0xff00ff00, 0xff00ff00, 0xff0000ff, 0xff0000ff
+};
+
+static const char *png_filename = "romedalen.png";
+
+static cairo_t *
+paint (cairo_t *cr)
+{
+ cairo_set_source_rgb (cr, 0, 0, 1);
+ cairo_paint (cr);
+
+ cairo_translate (cr, 2, 2);
+ cairo_scale (cr, 0.5, 0.5);
+
+ cairo_set_source_rgb (cr, 1, 0, 0);
+ cairo_paint (cr);
+
+ return cr;
+}
+
+static cairo_t *
+paint_alpha (cairo_t *cr)
+{
+ cairo_surface_t *surface;
+
+ surface = cairo_image_surface_create_for_data ((unsigned char *) data,
+ CAIRO_FORMAT_RGB24, 4, 4, 16);
+
+ cairo_test_paint_checkered (cr);
+
+ cairo_scale (cr, 4, 4);
+
+ cairo_set_source_surface (cr, surface, 2 , 2);
+ cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST);
+ cairo_paint_with_alpha (cr, 0.5);
+
+ cairo_surface_finish (surface); /* data will go out of scope */
+ cairo_surface_destroy (surface);
+
+ return cr;
+}
+
+static cairo_t *
+paint_alpha_solid_clip (cairo_t *cr)
+{
+ cairo_test_paint_checkered (cr);
+
+ cairo_rectangle (cr, 2.5, 2.5, 27, 27);
+ cairo_clip (cr);
+
+ cairo_set_source_rgb (cr, 1., 0.,0.);
+ cairo_paint_with_alpha (cr, 0.5);
+
+ return cr;
+}
+
+static cairo_t *
+paint_alpha_clip (cairo_t *cr)
+{
+ cairo_surface_t *surface;
+
+ surface = cairo_image_surface_create_for_data ((unsigned char *) data,
+ CAIRO_FORMAT_RGB24, 4, 4, 16);
+
+ cairo_test_paint_checkered (cr);
+
+ cairo_rectangle (cr, 10.5, 10.5, 11, 11);
+ cairo_clip (cr);
+
+ cairo_scale (cr, 4, 4);
+
+ cairo_set_source_surface (cr, surface, 2 , 2);
+ cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST);
+ cairo_paint_with_alpha (cr, 0.5);
+
+ cairo_surface_finish (surface); /* data will go out of scope */
+ cairo_surface_destroy (surface);
+
+ return cr;
+}
+
+static cairo_t *
+paint_alpha_clip_mask (cairo_t *cr)
+{
+ cairo_surface_t *surface;
+
+ surface = cairo_image_surface_create_for_data ((unsigned char *) data,
+ CAIRO_FORMAT_RGB24, 4, 4, 16);
+
+ cairo_test_paint_checkered (cr);
+
+ cairo_move_to (cr, 16, 5);
+ cairo_line_to (cr, 5, 16);
+ cairo_line_to (cr, 16, 27);
+ cairo_line_to (cr, 27, 16);
+ cairo_clip (cr);
+
+ cairo_scale (cr, 4, 4);
+
+ cairo_set_source_surface (cr, surface, 2 , 2);
+ cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST);
+ cairo_paint_with_alpha (cr, 0.5);
+
+ cairo_surface_finish (surface); /* data will go out of scope */
+ cairo_surface_destroy (surface);
+
+ return cr;
+}
+
+static cairo_t *
+select_font_face (cairo_t *cr)
+{
+ /* We draw in the default black, so paint white first. */
+ cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */
+ cairo_paint (cr);
+
+ cairo_set_source_rgb (cr, 0, 0, 0); /* black */
+
+ cairo_set_font_size (cr, TEXT_SIZE);
+ cairo_move_to (cr, 0, TEXT_SIZE);
+
+ cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Serif",
+ CAIRO_FONT_SLANT_NORMAL,
+ CAIRO_FONT_WEIGHT_NORMAL);
+ cairo_show_text (cr, "i-am-serif");
+
+ cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans",
+ CAIRO_FONT_SLANT_NORMAL,
+ CAIRO_FONT_WEIGHT_NORMAL);
+ cairo_show_text (cr, " i-am-sans");
+
+ cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans Mono",
+ CAIRO_FONT_SLANT_NORMAL,
+ CAIRO_FONT_WEIGHT_NORMAL);
+ cairo_show_text (cr, " i-am-mono");
+
+ return cr;
+}
+
+static cairo_t *
+fill_alpha (cairo_t *cr)
+{
+ const double alpha = 1./3;
+ int n;
+
+ /* flatten to white */
+ cairo_set_source_rgb (cr, 1, 1, 1);
+ cairo_paint (cr);
+
+ /* square */
+ cairo_rectangle (cr, PAD, PAD, SIZE, SIZE);
+ cairo_set_source_rgba (cr, 1, 0, 0, alpha);
+ cairo_fill (cr);
+
+ /* circle */
+ cairo_translate (cr, SIZE + 2 * PAD, 0);
+ cairo_arc (cr, PAD + SIZE / 2., PAD + SIZE / 2., SIZE / 2., 0, 2 * M_PI);
+ cairo_set_source_rgba (cr, 0, 1, 0, alpha);
+ cairo_fill (cr);
+
+ /* triangle */
+ cairo_translate (cr, 0, SIZE + 2 * PAD);
+ cairo_move_to (cr, PAD + SIZE / 2, PAD);
+ cairo_line_to (cr, PAD + SIZE, PAD + SIZE);
+ cairo_line_to (cr, PAD, PAD + SIZE);
+ cairo_set_source_rgba (cr, 0, 0, 1, alpha);
+ cairo_fill (cr);
+
+ /* star */
+ cairo_translate (cr, -(SIZE + 2 * PAD) + SIZE/2., SIZE/2.);
+ for (n = 0; n < 5; n++) {
+ cairo_line_to (cr,
+ SIZE/2 * cos (2*n * 2*M_PI / 10),
+ SIZE/2 * sin (2*n * 2*M_PI / 10));
+
+ cairo_line_to (cr,
+ SIZE/4 * cos ((2*n+1)*2*M_PI / 10),
+ SIZE/4 * sin ((2*n+1)*2*M_PI / 10));
+ }
+ cairo_set_source_rgba (cr, 0, 0, 0, alpha);
+ cairo_fill (cr);
+
+ return cr;
+}
+
+static cairo_t *
+self_intersecting (cairo_t *cr)
+{
+ cairo_set_source_rgb (cr, 1, 1, 1);
+ cairo_paint (cr);
+
+ cairo_translate (cr, 1.0, 1.0);
+
+ cairo_set_source_rgb (cr, 1, 0, 0); /* red */
+
+ /* First draw the desired shape with a fill */
+ cairo_rectangle (cr, 0.5, 0.5, 4.0, 4.0);
+ cairo_rectangle (cr, 3.5, 3.5, 4.0, 4.0);
+ cairo_rectangle (cr, 3.5, 1.5, -2.0, 2.0);
+ cairo_rectangle (cr, 6.5, 4.5, -2.0, 2.0);
+
+ cairo_fill (cr);
+
+ /* Then try the same thing with a stroke */
+ cairo_translate (cr, 0, 10);
+ cairo_move_to (cr, 1.0, 1.0);
+ cairo_rel_line_to (cr, 3.0, 0.0);
+ cairo_rel_line_to (cr, 0.0, 6.0);
+ cairo_rel_line_to (cr, 3.0, 0.0);
+ cairo_rel_line_to (cr, 0.0, -3.0);
+ cairo_rel_line_to (cr, -6.0, 0.0);
+ cairo_close_path (cr);
+
+ cairo_set_line_width (cr, 1.0);
+ cairo_stroke (cr);
+
+ return cr;
+}
+
+static void
+draw_text_transform (cairo_t *cr)
+{
+ cairo_matrix_t tm;
+
+ /* skew */
+ cairo_matrix_init (&tm, 1, 0,
+ -0.25, 1,
+ 0, 0);
+ cairo_matrix_scale (&tm, TT_FONT_SIZE, TT_FONT_SIZE);
+ cairo_set_font_matrix (cr, &tm);
+
+ cairo_new_path (cr);
+ cairo_move_to (cr, 50, TT_SIZE-TT_PAD);
+ cairo_show_text (cr, "A");
+
+ /* rotate and scale */
+ cairo_matrix_init_rotate (&tm, M_PI / 2);
+ cairo_matrix_scale (&tm, TT_FONT_SIZE, TT_FONT_SIZE * 2.0);
+ cairo_set_font_matrix (cr, &tm);
+
+ cairo_new_path (cr);
+ cairo_move_to (cr, TT_PAD, TT_PAD + 25);
+ cairo_show_text (cr, "A");
+
+ cairo_matrix_init_rotate (&tm, M_PI / 2);
+ cairo_matrix_scale (&tm, TT_FONT_SIZE * 2.0, TT_FONT_SIZE);
+ cairo_set_font_matrix (cr, &tm);
+
+ cairo_new_path (cr);
+ cairo_move_to (cr, TT_PAD, TT_PAD + 50);
+ cairo_show_text (cr, "A");
+}
+
+static cairo_t *
+text_transform (cairo_t *cr)
+{
+ const cairo_test_context_t *ctx = cairo_test_get_context (cr);
+ cairo_pattern_t *pattern;
+
+ cairo_set_source_rgb (cr, 1., 1., 1.);
+ cairo_paint (cr);
+
+ cairo_set_source_rgb (cr, 0., 0., 0.);
+
+ cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans",
+ CAIRO_FONT_SLANT_NORMAL,
+ CAIRO_FONT_WEIGHT_NORMAL);
+
+ draw_text_transform (cr);
+
+ cairo_translate (cr, TT_SIZE, TT_SIZE);
+ cairo_rotate (cr, M_PI);
+
+ pattern = cairo_test_create_pattern_from_png (ctx, png_filename);
+ cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);
+ cairo_set_source (cr, pattern);
+ cairo_pattern_destroy (pattern);
+
+ draw_text_transform (cr);
+
+ return cr;
+}
+
+/* And here begins the recording and replaying... */
+
+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;
+
+#if GENERATE_REF
+ func(cr);
+#else
+ 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);
+ }
+ }
+#endif
+
+ return CAIRO_TEST_SUCCESS;
+}
+
+static cairo_test_status_t
+record_paint (cairo_t *cr, int width, int height)
+{
+ return record_replay (cr, paint, width, height);
+}
+
+static cairo_test_status_t
+record_paint_alpha (cairo_t *cr, int width, int height)
+{
+ return record_replay (cr, paint_alpha, width, height);
+}
+
+static cairo_test_status_t
+record_paint_alpha_solid_clip (cairo_t *cr, int width, int height)
+{
+ return record_replay (cr, paint_alpha_solid_clip, width, height);
+}
+
+static cairo_test_status_t
+record_paint_alpha_clip (cairo_t *cr, int width, int height)
+{
+ return record_replay (cr, paint_alpha_clip, width, height);
+}
+
+static cairo_test_status_t
+record_paint_alpha_clip_mask (cairo_t *cr, int width, int height)
+{
+ return record_replay (cr, paint_alpha_clip_mask, width, height);
+}
+
+static cairo_test_status_t
+record_fill_alpha (cairo_t *cr, int width, int height)
+{
+ return record_replay (cr, fill_alpha, width, height);
+}
+
+static cairo_test_status_t
+record_self_intersecting (cairo_t *cr, int width, int height)
+{
+ return record_replay (cr, self_intersecting, width, height);
+}
+
+static cairo_test_status_t
+record_select_font_face (cairo_t *cr, int width, int height)
+{
+ return record_replay (cr, select_font_face, width, height);
+}
+
+static cairo_test_status_t
+record_text_transform (cairo_t *cr, int width, int height)
+{
+ return record_replay (cr, text_transform, width, height);
+}
+
+CAIRO_TEST (record_paint,
+ "Test replayed calls to cairo_paint",
+ "paint,record", /* keywords */
+ NULL, /* requirements */
+ 8, 8,
+ NULL, record_paint)
+CAIRO_TEST (record_paint_alpha,
+ "Simple test of cairo_paint_with_alpha",
+ "record, paint, alpha", /* keywords */
+ NULL, /* requirements */
+ 32, 32,
+ NULL, record_paint_alpha)
+CAIRO_TEST (record_paint_alpha_solid_clip,
+ "Simple test of cairo_paint_with_alpha+unaligned clip",
+ "record, paint, alpha, clip", /* keywords */
+ NULL, /* requirements */
+ 32, 32,
+ NULL, record_paint_alpha_solid_clip)
+CAIRO_TEST (record_paint_alpha_clip,
+ "Simple test of cairo_paint_with_alpha+unaligned clip",
+ "record, paint, alpha, clip", /* keywords */
+ NULL, /* requirements */
+ 32, 32,
+ NULL, record_paint_alpha_clip)
+CAIRO_TEST (record_paint_alpha_clip_mask,
+ "Simple test of cairo_paint_with_alpha+triangular clip",
+ "record, paint, alpha, clip", /* keywords */
+ NULL, /* requirements */
+ 32, 32,
+ NULL, record_paint_alpha_clip_mask)
+CAIRO_TEST (record_fill_alpha,
+ "Tests using set_rgba();fill()",
+ "record,fill, alpha", /* keywords */
+ NULL, /* requirements */
+ 2*SIZE + 4*PAD, 2*SIZE + 4*PAD,
+ NULL, record_fill_alpha)
+CAIRO_TEST (record_select_font_face,
+ "Tests using cairo_select_font_face to draw text in different faces",
+ "record, font", /* keywords */
+ NULL, /* requirements */
+ 192, TEXT_SIZE + 4,
+ NULL, record_select_font_face)
+CAIRO_TEST (record_self_intersecting,
+ "Test strokes of self-intersecting paths",
+ "record, stroke, trap", /* keywords */
+ NULL, /* requirements */
+ 10, 20,
+ NULL, record_self_intersecting)
+CAIRO_TEST (record_text_transform,
+ "Test various applications of the font matrix",
+ "record, text, transform", /* keywords */
+ NULL, /* requirements */
+ TT_SIZE, TT_SIZE,
+ NULL, record_text_transform)