cgm.c revision b2a5d7e02fd588d343baf6a7433c483f7af9fd43 
1/*
2 * Copyright 2014 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8// EXPERIMENTAL EXPERIMENTAL EXPERIMENTAL EXPERIMENTAL
9// DO NOT USE -- FOR INTERNAL TESTING ONLY
10
11#include "sk_canvas.h"
12#include "sk_data.h"
13#include "sk_image.h"
14#include "sk_paint.h"
15#include "sk_shader.h"
16#include "sk_surface.h"
17
18extern void sk_test_c_api(sk_canvas_t*);
19
20#define W   256
21#define H   256
22
23static sk_shader_t* make_shader() {
24    sk_point_t pts[] = { { 0, 0 }, { W, H } };
25    sk_color_t colors[] = { 0xFF00FF00, 0xFF0000FF };
26    return sk_shader_new_linear_gradient(pts, colors, NULL, 2, CLAMP_SK_SHADER_TILEMODE, NULL);
27}
28
29static void do_draw(sk_canvas_t* canvas) {
30    sk_paint_t* paint = sk_paint_new();
31    sk_paint_set_antialias(paint, true);
32
33    sk_paint_set_color(paint, 0xFFFFFFFF);
34    sk_canvas_draw_paint(canvas, paint);
35
36    sk_rect_t r = { 10, 10, W - 10, H - 10 };
37
38    sk_paint_set_color(paint, 0xFFFF0000);
39    sk_canvas_draw_rect(canvas, &r, paint);
40
41    sk_shader_t* shader = make_shader();
42    sk_paint_set_shader(paint, shader);
43    sk_shader_unref(shader);
44
45    sk_canvas_draw_oval(canvas, &r, paint);
46
47    sk_paint_delete(paint);
48}
49
50void sk_test_c_api(sk_canvas_t* canvas) {
51    do_draw(canvas);
52
53    sk_imageinfo_t info = {
54        W, H, sk_colortype_get_default_8888(), OPAQUE_SK_ALPHATYPE
55    };
56    sk_surface_t* surf = sk_surface_new_raster(&info);
57    do_draw(sk_surface_get_canvas(surf));
58
59    sk_image_t* img0 = sk_surface_new_image_snapshot(surf);
60    sk_surface_unref(surf);
61
62    sk_canvas_draw_image(canvas, img0, W + 10, 10, NULL);
63
64    sk_data_t* data = sk_image_encode(img0);
65    sk_image_unref(img0);
66
67    sk_image_t* img1 = sk_image_new_from_data(data);
68    sk_data_unref(data);
69
70    sk_canvas_draw_image(canvas, img1, W/2, H/2, NULL);
71    sk_image_unref(img1);
72}
73
74
75