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 
18 extern void sk_test_c_api(sk_canvas_t*);
19 
20 #define W   256
21 #define H   256
22 
23 static 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 
29 static 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 
50 void 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_surfaceprops_t surfaceProps = { UNKNOWN_SK_PIXELGEOMETRY };
57     sk_surface_t* surf = sk_surface_new_raster(&info, &surfaceProps);
58     do_draw(sk_surface_get_canvas(surf));
59 
60     sk_image_t* img0 = sk_surface_new_image_snapshot(surf);
61     sk_surface_unref(surf);
62 
63     sk_canvas_draw_image(canvas, img0, W + 10, 10, NULL);
64 
65     sk_data_t* data = sk_image_encode(img0);
66     sk_image_unref(img0);
67 
68     sk_image_t* img1 = sk_image_new_from_encoded(data, NULL);
69     sk_data_unref(data);
70 
71     if (img1) {
72         sk_canvas_draw_image(canvas, img1, W/2, H/2, NULL);
73         sk_image_unref(img1);
74     }
75 }
76 
77 
78