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/*
* Copyright © 2016 Adrian Johnson
*
* 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:
* Adrian Johnson <ajohnson@redneon.com>
*/
#include "cairo-test.h"
#include <stdio.h>
#include <math.h>
#define PAT_SIZE 32
#define REPLAY_SIZE (PAT_SIZE*4)
#define PAD 10
#define WIDTH (REPLAY_SIZE*4 + PAD*5)
#define HEIGHT (REPLAY_SIZE + PAD*2)
/* Test replaying a recording surface pattern for each type of extend. */
static void
transform_extents(cairo_rectangle_t *extents, cairo_matrix_t *mat)
{
double x1, y1, x2, y2, x, y;
#define UPDATE_BBOX \
x1 = x < x1 ? x : x1; \
y1 = y < y1 ? y : y1; \
x2 = x > x2 ? x : x2; \
y2 = y > y2 ? y : y2;
x = extents->x;
y = extents->y;
cairo_matrix_transform_point (mat, &x, &y);
x1 = x2 = x;
y1 = y2 = y;
x = extents->x + extents->width;
y = extents->y;
cairo_matrix_transform_point (mat, &x, &y);
UPDATE_BBOX;
x = extents->x;
y = extents->y + extents->height;
cairo_matrix_transform_point (mat, &x, &y);
UPDATE_BBOX;
x = extents->x + extents->width;
y = extents->y + extents->height;
cairo_matrix_transform_point (mat, &x, &y);
UPDATE_BBOX;
extents->x = x1;
extents->y = y1;
extents->width = x2 - extents->x;
extents->height = y2 - extents->y;
#undef UPDATE_BBOX
}
static cairo_pattern_t *
create_pattern (cairo_matrix_t *mat, cairo_extend_t extend)
{
cairo_surface_t *surf;
cairo_pattern_t *pat;
cairo_t *cr;
cairo_rectangle_t extents = { 0, 0, PAT_SIZE, PAT_SIZE };
transform_extents (&extents, mat);
surf = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, &extents);
cr = cairo_create (surf);
cairo_transform (cr, mat);
cairo_rectangle (cr, 0, 0, PAT_SIZE/2, PAT_SIZE/2);
cairo_set_source_rgb (cr, 1, 0, 0);
cairo_fill (cr);
cairo_translate (cr, PAT_SIZE/2, 0);
cairo_rectangle (cr, 0, 0, PAT_SIZE/2, PAT_SIZE/2);
cairo_set_source_rgb (cr, 0, 1, 0);
cairo_fill (cr);
cairo_translate (cr, 0, PAT_SIZE/2);
cairo_rectangle (cr, 0, 0, PAT_SIZE/2, PAT_SIZE/2);
cairo_set_source_rgb (cr, 0, 0, 1);
cairo_fill (cr);
cairo_translate (cr, -PAT_SIZE/2, 0);
cairo_rectangle (cr, 0, 0, PAT_SIZE/2, PAT_SIZE/2);
cairo_set_source_rgb (cr, 1, 1, 0);
cairo_fill (cr);
cairo_destroy (cr);
pat = cairo_pattern_create_for_surface (surf);
cairo_surface_destroy (surf);
cairo_pattern_set_matrix (pat, mat);
cairo_pattern_set_extend (pat, extend);
cairo_pattern_set_filter (pat, CAIRO_FILTER_NEAREST);
return pat;
}
static cairo_test_status_t
record_replay_extend (cairo_t *cr, int width, int height, cairo_extend_t extend)
{
cairo_pattern_t *pat;
cairo_matrix_t mat;
/* record surface extents (-PAT_SIZE/2, -PAT_SIZE/2) to (PAT_SIZE/2, PAT_SIZE/2) */
cairo_translate (cr, PAD, PAD);
cairo_matrix_init_translate (&mat, -PAT_SIZE/2, -PAT_SIZE/2);
pat = create_pattern (&mat, extend);
/* test repeating patterns when the source is outside of the target clip */
if (extend == CAIRO_EXTEND_REPEAT || extend == CAIRO_EXTEND_REFLECT) {
cairo_matrix_init_translate (&mat, 3*PAT_SIZE/2, 3*PAT_SIZE/2);
cairo_pattern_set_matrix (pat, &mat);
}
cairo_set_source (cr, pat);
cairo_pattern_destroy (pat);
cairo_rectangle (cr, 0, 0, REPLAY_SIZE, REPLAY_SIZE);
cairo_fill (cr);
/* record surface extents (-2*PAT_SIZE/2, -2*PAT_SIZE/2) to (2*PAT_SIZE/2, 2*PAT_SIZE/2) */
cairo_translate (cr, REPLAY_SIZE + PAD, 0);
cairo_matrix_init_translate (&mat, -2.0*PAT_SIZE/2, -2.0*PAT_SIZE/2);
cairo_matrix_scale (&mat, 2, 2);
pat = create_pattern (&mat, extend);
cairo_set_source (cr, pat);
cairo_pattern_destroy (pat);
cairo_rectangle (cr, 0, 0, REPLAY_SIZE, REPLAY_SIZE);
cairo_fill (cr);
/* record surface extents (-0.5*PAT_SIZE/2, -0.5*PAT_SIZE/2) to (0.5*PAT_SIZE/2, 0.5*PAT_SIZE/2) */
cairo_translate (cr, REPLAY_SIZE + PAD, 0);
cairo_matrix_init_translate (&mat, -0.5*PAT_SIZE/2, -0.5*PAT_SIZE/2);
cairo_matrix_scale (&mat, 0.5, 0.5);
pat = create_pattern (&mat, extend);
cairo_set_source (cr, pat);
cairo_pattern_destroy (pat);
cairo_rectangle (cr, 0, 0, REPLAY_SIZE, REPLAY_SIZE);
cairo_fill (cr);
/* record surface centered on (0,0) and rotated 45 deg */
cairo_translate (cr, REPLAY_SIZE + PAD, 0);
cairo_matrix_init_translate (&mat, -PAT_SIZE/sqrt(2), -PAT_SIZE/sqrt(2));
cairo_matrix_rotate (&mat, M_PI/4.0);
cairo_matrix_translate (&mat, PAT_SIZE/2, -PAT_SIZE/2);
pat = create_pattern (&mat, extend);
cairo_set_source (cr, pat);
cairo_pattern_destroy (pat);
cairo_rectangle (cr, 0, 0, REPLAY_SIZE, REPLAY_SIZE);
cairo_fill (cr);
return CAIRO_TEST_SUCCESS;
}
static cairo_test_status_t
record_replay_extend_none (cairo_t *cr, int width, int height)
{
return record_replay_extend (cr, width, height, CAIRO_EXTEND_NONE);
}
static cairo_test_status_t
record_replay_extend_repeat (cairo_t *cr, int width, int height)
{
return record_replay_extend (cr, width, height, CAIRO_EXTEND_REPEAT);
}
static cairo_test_status_t
record_replay_extend_reflect (cairo_t *cr, int width, int height)
{
return record_replay_extend (cr, width, height, CAIRO_EXTEND_REFLECT);
}
static cairo_test_status_t
record_replay_extend_pad (cairo_t *cr, int width, int height)
{
return record_replay_extend (cr, width, height, CAIRO_EXTEND_PAD);
}
CAIRO_TEST (record_replay_extend_none,
"Paint recording pattern with CAIRO_EXTEND_NONE",
"record,pattern,extend", /* keywords */
NULL, /* requirements */
WIDTH, HEIGHT,
NULL, record_replay_extend_none)
CAIRO_TEST (record_replay_extend_repeat,
"Paint recording pattern with CAIRO_EXTEND_REPEAT",
"record,pattern,extend", /* keywords */
NULL, /* requirements */
WIDTH, HEIGHT,
NULL, record_replay_extend_repeat)
CAIRO_TEST (record_replay_extend_reflect,
"Paint recording pattern with CAIRO_EXTEND_REFLECT",
"record,pattern,extend", /* keywords */
NULL, /* requirements */
WIDTH, HEIGHT,
NULL, record_replay_extend_reflect)
CAIRO_TEST (record_replay_extend_pad,
"Paint recording pattern with CAIRO_EXTEND_PAD",
"record,pattern,extend", /* keywords */
NULL, /* requirements */
WIDTH, HEIGHT,
NULL, record_replay_extend_pad)
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