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#include "include/core/SkCanvas.h"
9#include "include/core/SkData.h"
10#include "include/core/SkImage.h"
11#include "include/core/SkMaskFilter.h"
12#include "include/core/SkMatrix.h"
13#include "include/core/SkPaint.h"
14#include "include/core/SkPath.h"
15#include "include/core/SkPictureRecorder.h"
16#include "include/core/SkSurface.h"
17
18#include "include/c/sk_canvas.h"
19#include "include/c/sk_data.h"
20#include "include/c/sk_image.h"
21#include "include/c/sk_paint.h"
22#include "include/c/sk_path.h"
23#include "include/c/sk_picture.h"
24#include "include/c/sk_surface.h"
25#include "src/c/sk_types_priv.h"
26
27const struct {
28 sk_pixelgeometry_t fC;
29 SkPixelGeometry fSK;
30} gPixelGeometryMap[] = {
31 { UNKNOWN_SK_PIXELGEOMETRY, kUnknown_SkPixelGeometry },
32 { RGB_H_SK_PIXELGEOMETRY, kRGB_H_SkPixelGeometry },
33 { BGR_H_SK_PIXELGEOMETRY, kBGR_H_SkPixelGeometry },
34 { RGB_V_SK_PIXELGEOMETRY, kRGB_V_SkPixelGeometry },
35 { BGR_V_SK_PIXELGEOMETRY, kBGR_V_SkPixelGeometry },
36};
37
38
39static bool from_c_pixelgeometry(sk_pixelgeometry_t cGeom, SkPixelGeometry* skGeom) {
40 for (size_t i = 0; i < SK_ARRAY_COUNT(gPixelGeometryMap); ++i) {
41 if (gPixelGeometryMap[i].fC == cGeom) {
42 if (skGeom) {
43 *skGeom = gPixelGeometryMap[i].fSK;
44 }
45 return true;
46 }
47 }
48 return false;
49}
50
51static void from_c_matrix(const sk_matrix_t* cmatrix, SkMatrix* matrix) {
52 matrix->setAll(cmatrix->mat[0], cmatrix->mat[1], cmatrix->mat[2],
53 cmatrix->mat[3], cmatrix->mat[4], cmatrix->mat[5],
54 cmatrix->mat[6], cmatrix->mat[7], cmatrix->mat[8]);
55}
56
57const struct {
58 sk_path_direction_t fC;
59 SkPathDirection fSk;
60} gPathDirMap[] = {
61 { CW_SK_PATH_DIRECTION, SkPathDirection::kCW },
62 { CCW_SK_PATH_DIRECTION, SkPathDirection::kCCW },
63};
64
65static bool from_c_path_direction(sk_path_direction_t cdir, SkPathDirection* dir) {
66 for (size_t i = 0; i < SK_ARRAY_COUNT(gPathDirMap); ++i) {
67 if (gPathDirMap[i].fC == cdir) {
68 if (dir) {
69 *dir = gPathDirMap[i].fSk;
70 }
71 return true;
72 }
73 }
74 return false;
75}
76
77static SkData* AsData(const sk_data_t* cdata) {
78 return reinterpret_cast<SkData*>(const_cast<sk_data_t*>(cdata));
79}
80
81static sk_data_t* ToData(SkData* data) {
82 return reinterpret_cast<sk_data_t*>(data);
83}
84
85static sk_rect_t ToRect(const SkRect& rect) {
86 return reinterpret_cast<const sk_rect_t&>(rect);
87}
88
89static const SkRect& AsRect(const sk_rect_t& crect) {
90 return reinterpret_cast<const SkRect&>(crect);
91}
92
93static const SkPath& AsPath(const sk_path_t& cpath) {
94 return reinterpret_cast<const SkPath&>(cpath);
95}
96
97static SkPath* as_path(sk_path_t* cpath) {
98 return reinterpret_cast<SkPath*>(cpath);
99}
100
101static const SkImage* AsImage(const sk_image_t* cimage) {
102 return reinterpret_cast<const SkImage*>(cimage);
103}
104
105static sk_image_t* ToImage(SkImage* cimage) {
106 return reinterpret_cast<sk_image_t*>(cimage);
107}
108
109static sk_canvas_t* ToCanvas(SkCanvas* canvas) {
110 return reinterpret_cast<sk_canvas_t*>(canvas);
111}
112
113static SkCanvas* AsCanvas(sk_canvas_t* ccanvas) {
114 return reinterpret_cast<SkCanvas*>(ccanvas);
115}
116
117static SkPictureRecorder* AsPictureRecorder(sk_picture_recorder_t* crec) {
118 return reinterpret_cast<SkPictureRecorder*>(crec);
119}
120
121static sk_picture_recorder_t* ToPictureRecorder(SkPictureRecorder* rec) {
122 return reinterpret_cast<sk_picture_recorder_t*>(rec);
123}
124
125static const SkPicture* AsPicture(const sk_picture_t* cpic) {
126 return reinterpret_cast<const SkPicture*>(cpic);
127}
128
129static SkPicture* AsPicture(sk_picture_t* cpic) {
130 return reinterpret_cast<SkPicture*>(cpic);
131}
132
133static sk_picture_t* ToPicture(SkPicture* pic) {
134 return reinterpret_cast<sk_picture_t*>(pic);
135}
136
137///////////////////////////////////////////////////////////////////////////////////////////
138
139sk_image_t* sk_image_new_raster_copy(const sk_imageinfo_t* cinfo, const void* pixels,
140 size_t rowBytes) {
141 const SkImageInfo* info = reinterpret_cast<const SkImageInfo*>(cinfo);
142 return (sk_image_t*)SkImage::MakeRasterCopy(SkPixmap(*info, pixels, rowBytes)).release();
143}
144
145sk_image_t* sk_image_new_from_encoded(const sk_data_t* cdata) {
146 return ToImage(SkImage::MakeFromEncoded(sk_ref_sp(AsData(cdata))).release());
147}
148
149sk_data_t* sk_image_encode(const sk_image_t* cimage) {
150 return ToData(AsImage(cimage)->encodeToData().release());
151}
152
153void sk_image_ref(const sk_image_t* cimage) {
154 AsImage(cimage)->ref();
155}
156
157void sk_image_unref(const sk_image_t* cimage) {
158 AsImage(cimage)->unref();
159}
160
161int sk_image_get_width(const sk_image_t* cimage) {
162 return AsImage(cimage)->width();
163}
164
165int sk_image_get_height(const sk_image_t* cimage) {
166 return AsImage(cimage)->height();
167}
168
169uint32_t sk_image_get_unique_id(const sk_image_t* cimage) {
170 return AsImage(cimage)->uniqueID();
171}
172
173///////////////////////////////////////////////////////////////////////////////////////////
174
175sk_path_t* sk_path_new() { return (sk_path_t*)new SkPath; }
176
177void sk_path_delete(sk_path_t* cpath) { delete as_path(cpath); }
178
179void sk_path_move_to(sk_path_t* cpath, float x, float y) {
180 as_path(cpath)->moveTo(x, y);
181}
182
183void sk_path_line_to(sk_path_t* cpath, float x, float y) {
184 as_path(cpath)->lineTo(x, y);
185}
186
187void sk_path_quad_to(sk_path_t* cpath, float x0, float y0, float x1, float y1) {
188 as_path(cpath)->quadTo(x0, y0, x1, y1);
189}
190
191void sk_path_conic_to(sk_path_t* cpath, float x0, float y0, float x1, float y1, float w) {
192 as_path(cpath)->conicTo(x0, y0, x1, y1, w);
193}
194
195void sk_path_cubic_to(sk_path_t* cpath, float x0, float y0, float x1, float y1, float x2, float y2) {
196 as_path(cpath)->cubicTo(x0, y0, x1, y1, x2, y2);
197}
198
199void sk_path_close(sk_path_t* cpath) {
200 as_path(cpath)->close();
201}
202
203void sk_path_add_rect(sk_path_t* cpath, const sk_rect_t* crect, sk_path_direction_t cdir) {
204 SkPathDirection dir;
205 if (!from_c_path_direction(cdir, &dir)) {
206 return;
207 }
208 as_path(cpath)->addRect(AsRect(*crect), dir);
209}
210
211void sk_path_add_oval(sk_path_t* cpath, const sk_rect_t* crect, sk_path_direction_t cdir) {
212 SkPathDirection dir;
213 if (!from_c_path_direction(cdir, &dir)) {
214 return;
215 }
216 as_path(cpath)->addOval(AsRect(*crect), dir);
217}
218
219bool sk_path_get_bounds(const sk_path_t* cpath, sk_rect_t* crect) {
220 const SkPath& path = AsPath(*cpath);
221
222 if (path.isEmpty()) {
223 if (crect) {
224 *crect = ToRect(SkRect::MakeEmpty());
225 }
226 return false;
227 }
228
229 if (crect) {
230 *crect = ToRect(path.getBounds());
231 }
232 return true;
233}
234
235///////////////////////////////////////////////////////////////////////////////////////////
236
237void sk_canvas_save(sk_canvas_t* ccanvas) {
238 AsCanvas(ccanvas)->save();
239}
240
241void sk_canvas_save_layer(sk_canvas_t* ccanvas, const sk_rect_t* crect, const sk_paint_t* cpaint) {
242 AsCanvas(ccanvas)->drawRect(AsRect(*crect), AsPaint(*cpaint));
243}
244
245void sk_canvas_restore(sk_canvas_t* ccanvas) {
246 AsCanvas(ccanvas)->restore();
247}
248
249void sk_canvas_translate(sk_canvas_t* ccanvas, float dx, float dy) {
250 AsCanvas(ccanvas)->translate(dx, dy);
251}
252
253void sk_canvas_scale(sk_canvas_t* ccanvas, float sx, float sy) {
254 AsCanvas(ccanvas)->scale(sx, sy);
255}
256
257void sk_canvas_rotate_degress(sk_canvas_t* ccanvas, float degrees) {
258 AsCanvas(ccanvas)->rotate(degrees);
259}
260
261void sk_canvas_rotate_radians(sk_canvas_t* ccanvas, float radians) {
262 AsCanvas(ccanvas)->rotate(SkRadiansToDegrees(radians));
263}
264
265void sk_canvas_skew(sk_canvas_t* ccanvas, float sx, float sy) {
266 AsCanvas(ccanvas)->skew(sx, sy);
267}
268
269void sk_canvas_concat(sk_canvas_t* ccanvas, const sk_matrix_t* cmatrix) {
270 SkASSERT(cmatrix);
271 SkMatrix matrix;
272 from_c_matrix(cmatrix, &matrix);
273 AsCanvas(ccanvas)->concat(matrix);
274}
275
276void sk_canvas_clip_rect(sk_canvas_t* ccanvas, const sk_rect_t* crect) {
277 AsCanvas(ccanvas)->clipRect(AsRect(*crect));
278}
279
280void sk_canvas_clip_path(sk_canvas_t* ccanvas, const sk_path_t* cpath) {
281 AsCanvas(ccanvas)->clipPath(AsPath(*cpath));
282}
283
284void sk_canvas_draw_paint(sk_canvas_t* ccanvas, const sk_paint_t* cpaint) {
285 AsCanvas(ccanvas)->drawPaint(AsPaint(*cpaint));
286}
287
288void sk_canvas_draw_rect(sk_canvas_t* ccanvas, const sk_rect_t* crect, const sk_paint_t* cpaint) {
289 AsCanvas(ccanvas)->drawRect(AsRect(*crect), AsPaint(*cpaint));
290}
291
292void sk_canvas_draw_circle(sk_canvas_t* ccanvas, float cx, float cy, float rad,
293 const sk_paint_t* cpaint) {
294 AsCanvas(ccanvas)->drawCircle(cx, cy, rad, AsPaint(*cpaint));
295}
296
297void sk_canvas_draw_oval(sk_canvas_t* ccanvas, const sk_rect_t* crect, const sk_paint_t* cpaint) {
298 AsCanvas(ccanvas)->drawOval(AsRect(*crect), AsPaint(*cpaint));
299}
300
301void sk_canvas_draw_path(sk_canvas_t* ccanvas, const sk_path_t* cpath, const sk_paint_t* cpaint) {
302 AsCanvas(ccanvas)->drawPath(AsPath(*cpath), AsPaint(*cpaint));
303}
304
305void sk_canvas_draw_image(sk_canvas_t* ccanvas, const sk_image_t* cimage, float x, float y,
306 const sk_paint_t* cpaint) {
307 AsCanvas(ccanvas)->drawImage(AsImage(cimage), x, y, AsPaint(cpaint));
308}
309
310void sk_canvas_draw_image_rect(sk_canvas_t* ccanvas, const sk_image_t* cimage,
311 const sk_rect_t* csrcR, const sk_rect_t* cdstR,
312 const sk_paint_t* cpaint) {
313 SkCanvas* canvas = AsCanvas(ccanvas);
314 const SkImage* image = AsImage(cimage);
315 const SkRect& dst = AsRect(*cdstR);
316 const SkPaint* paint = AsPaint(cpaint);
317
318 if (csrcR) {
319 canvas->drawImageRect(image, AsRect(*csrcR), dst, paint);
320 } else {
321 canvas->drawImageRect(image, dst, paint);
322 }
323}
324
325void sk_canvas_draw_picture(sk_canvas_t* ccanvas, const sk_picture_t* cpicture,
326 const sk_matrix_t* cmatrix, const sk_paint_t* cpaint) {
327 const SkMatrix* matrixPtr = nullptr;
328 SkMatrix matrix;
329 if (cmatrix) {
330 from_c_matrix(cmatrix, &matrix);
331 matrixPtr = &matrix;
332 }
333 AsCanvas(ccanvas)->drawPicture(AsPicture(cpicture), matrixPtr, AsPaint(cpaint));
334}
335
336///////////////////////////////////////////////////////////////////////////////////////////
337
338sk_surface_t* sk_surface_new_raster(const sk_imageinfo_t* cinfo,
339 const sk_surfaceprops_t* props) {
340 const SkImageInfo* info = reinterpret_cast<const SkImageInfo*>(cinfo);
341 SkPixelGeometry geo = kUnknown_SkPixelGeometry;
342 if (props && !from_c_pixelgeometry(props->pixelGeometry, &geo)) {
343 return nullptr;
344 }
345
346 SkSurfaceProps surfProps(0, geo);
347 return (sk_surface_t*)SkSurface::MakeRaster(*info, &surfProps).release();
348}
349
350sk_surface_t* sk_surface_new_raster_direct(const sk_imageinfo_t* cinfo, void* pixels,
351 size_t rowBytes,
352 const sk_surfaceprops_t* props) {
353 const SkImageInfo* info = reinterpret_cast<const SkImageInfo*>(cinfo);
354 SkPixelGeometry geo = kUnknown_SkPixelGeometry;
355 if (props && !from_c_pixelgeometry(props->pixelGeometry, &geo)) {
356 return nullptr;
357 }
358
359 SkSurfaceProps surfProps(0, geo);
360 return (sk_surface_t*)SkSurface::MakeRasterDirect(*info, pixels, rowBytes, &surfProps).release();
361}
362
363void sk_surface_unref(sk_surface_t* csurf) {
364 SkSafeUnref((SkSurface*)csurf);
365}
366
367sk_canvas_t* sk_surface_get_canvas(sk_surface_t* csurf) {
368 SkSurface* surf = (SkSurface*)csurf;
369 return (sk_canvas_t*)surf->getCanvas();
370}
371
372sk_image_t* sk_surface_new_image_snapshot(sk_surface_t* csurf) {
373 SkSurface* surf = (SkSurface*)csurf;
374 return (sk_image_t*)surf->makeImageSnapshot().release();
375}
376
377///////////////////////////////////////////////////////////////////////////////////////////
378
379sk_picture_recorder_t* sk_picture_recorder_new() {
380 return ToPictureRecorder(new SkPictureRecorder);
381}
382
383void sk_picture_recorder_delete(sk_picture_recorder_t* crec) {
384 delete AsPictureRecorder(crec);
385}
386
387sk_canvas_t* sk_picture_recorder_begin_recording(sk_picture_recorder_t* crec,
388 const sk_rect_t* cbounds) {
389 return ToCanvas(AsPictureRecorder(crec)->beginRecording(AsRect(*cbounds)));
390}
391
392sk_picture_t* sk_picture_recorder_end_recording(sk_picture_recorder_t* crec) {
393 return ToPicture(AsPictureRecorder(crec)->finishRecordingAsPicture().release());
394}
395
396void sk_picture_ref(sk_picture_t* cpic) {
397 SkSafeRef(AsPicture(cpic));
398}
399
400void sk_picture_unref(sk_picture_t* cpic) {
401 SkSafeUnref(AsPicture(cpic));
402}
403
404uint32_t sk_picture_get_unique_id(sk_picture_t* cpic) {
405 return AsPicture(cpic)->uniqueID();
406}
407
408sk_rect_t sk_picture_get_bounds(sk_picture_t* cpic) {
409 return ToRect(AsPicture(cpic)->cullRect());
410}
411
412///////////////////////////////////////////////////////////////////////////////////////////
413
414sk_data_t* sk_data_new_with_copy(const void* src, size_t length) {
415 return ToData(SkData::MakeWithCopy(src, length).release());
416}
417
418sk_data_t* sk_data_new_from_malloc(const void* memory, size_t length) {
419 return ToData(SkData::MakeFromMalloc(memory, length).release());
420}
421
422sk_data_t* sk_data_new_subset(const sk_data_t* csrc, size_t offset, size_t length) {
423 return ToData(SkData::MakeSubset(AsData(csrc), offset, length).release());
424}
425
426void sk_data_ref(const sk_data_t* cdata) {
427 SkSafeRef(AsData(cdata));
428}
429
430void sk_data_unref(const sk_data_t* cdata) {
431 SkSafeUnref(AsData(cdata));
432}
433
434size_t sk_data_get_size(const sk_data_t* cdata) {
435 return AsData(cdata)->size();
436}
437
438const void* sk_data_get_data(const sk_data_t* cdata) {
439 return AsData(cdata)->data();
440}
441
442///////////////////////////////////////////////////////////////////////////////////////////
443