cgm.c 2.2 KB

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  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. // EXPERIMENTAL EXPERIMENTAL EXPERIMENTAL EXPERIMENTAL
  8. // DO NOT USE -- FOR INTERNAL TESTING ONLY
  9. #include "include/c/sk_canvas.h"
  10. #include "include/c/sk_data.h"
  11. #include "include/c/sk_image.h"
  12. #include "include/c/sk_imageinfo.h"
  13. #include "include/c/sk_paint.h"
  14. #include "include/c/sk_shader.h"
  15. #include "include/c/sk_surface.h"
  16. #include "include/c/sk_types.h"
  17. #include <stdbool.h>
  18. #include <stddef.h>
  19. extern void sk_test_c_api(sk_canvas_t*);
  20. #define W 256
  21. #define H 256
  22. static sk_shader_t* make_shader() {
  23. sk_point_t pts[] = { { 0, 0 }, { W, H } };
  24. sk_color_t colors[] = { 0xFF00FF00, 0xFF0000FF };
  25. return sk_shader_new_linear_gradient(pts, colors, NULL, 2, CLAMP_SK_SHADER_TILEMODE, NULL);
  26. }
  27. static void do_draw(sk_canvas_t* canvas) {
  28. sk_paint_t* paint = sk_paint_new();
  29. sk_paint_set_antialias(paint, true);
  30. sk_paint_set_color(paint, 0xFFFFFFFF);
  31. sk_canvas_draw_paint(canvas, paint);
  32. sk_rect_t r = { 10, 10, W - 10, H - 10 };
  33. sk_paint_set_color(paint, 0xFFFF0000);
  34. sk_canvas_draw_rect(canvas, &r, paint);
  35. sk_shader_t* shader = make_shader();
  36. sk_paint_set_shader(paint, shader);
  37. sk_shader_unref(shader);
  38. sk_canvas_draw_oval(canvas, &r, paint);
  39. sk_paint_delete(paint);
  40. }
  41. void sk_test_c_api(sk_canvas_t* canvas) {
  42. do_draw(canvas);
  43. sk_imageinfo_t* info = sk_imageinfo_new(W, H, RGBA_8888_SK_COLORTYPE, OPAQUE_SK_ALPHATYPE,
  44. NULL);
  45. sk_surfaceprops_t surfaceProps = { UNKNOWN_SK_PIXELGEOMETRY };
  46. sk_surface_t* surf = sk_surface_new_raster(info, &surfaceProps);
  47. sk_imageinfo_delete(info);
  48. do_draw(sk_surface_get_canvas(surf));
  49. sk_image_t* img0 = sk_surface_new_image_snapshot(surf);
  50. sk_surface_unref(surf);
  51. sk_canvas_draw_image(canvas, img0, W + 10, 10, NULL);
  52. sk_data_t* data = sk_image_encode(img0);
  53. sk_image_unref(img0);
  54. sk_image_t* img1 = sk_image_new_from_encoded(data, NULL);
  55. sk_data_unref(data);
  56. if (img1) {
  57. sk_canvas_draw_image(canvas, img1, W/2, H/2, NULL);
  58. sk_image_unref(img1);
  59. }
  60. }