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, const sk_irect_t* subset) {
146 return ToImage(SkImage::MakeFromEncoded(sk_ref_sp(AsData(cdata)),
147 reinterpret_cast<const SkIRect*>(subset)).release());
148}
149
150sk_data_t* sk_image_encode(const sk_image_t* cimage) {
151 return ToData(AsImage(cimage)->encodeToData().release());
152}
153
154void sk_image_ref(const sk_image_t* cimage) {
155 AsImage(cimage)->ref();
156}
157
158void sk_image_unref(const sk_image_t* cimage) {
159 AsImage(cimage)->unref();
160}
161
162int sk_image_get_width(const sk_image_t* cimage) {
163 return AsImage(cimage)->width();
164}
165
166int sk_image_get_height(const sk_image_t* cimage) {
167 return AsImage(cimage)->height();
168}
169
170uint32_t sk_image_get_unique_id(const sk_image_t* cimage) {
171 return AsImage(cimage)->uniqueID();
172}
173
174///////////////////////////////////////////////////////////////////////////////////////////
175
176sk_path_t* sk_path_new() { return (sk_path_t*)new SkPath; }
177
178void sk_path_delete(sk_path_t* cpath) { delete as_path(cpath); }
179
180void sk_path_move_to(sk_path_t* cpath, float x, float y) {
181 as_path(cpath)->moveTo(x, y);
182}
183
184void sk_path_line_to(sk_path_t* cpath, float x, float y) {
185 as_path(cpath)->lineTo(x, y);
186}
187
188void sk_path_quad_to(sk_path_t* cpath, float x0, float y0, float x1, float y1) {
189 as_path(cpath)->quadTo(x0, y0, x1, y1);
190}
191
192void sk_path_conic_to(sk_path_t* cpath, float x0, float y0, float x1, float y1, float w) {
193 as_path(cpath)->conicTo(x0, y0, x1, y1, w);
194}
195
196void sk_path_cubic_to(sk_path_t* cpath, float x0, float y0, float x1, float y1, float x2, float y2) {
197 as_path(cpath)->cubicTo(x0, y0, x1, y1, x2, y2);
198}
199
200void sk_path_close(sk_path_t* cpath) {
201 as_path(cpath)->close();
202}
203
204void sk_path_add_rect(sk_path_t* cpath, const sk_rect_t* crect, sk_path_direction_t cdir) {
205 SkPathDirection dir;
206 if (!from_c_path_direction(cdir, &dir)) {
207 return;
208 }
209 as_path(cpath)->addRect(AsRect(*crect), dir);
210}
211
212void sk_path_add_oval(sk_path_t* cpath, const sk_rect_t* crect, sk_path_direction_t cdir) {
213 SkPathDirection dir;
214 if (!from_c_path_direction(cdir, &dir)) {
215 return;
216 }
217 as_path(cpath)->addOval(AsRect(*crect), dir);
218}
219
220bool sk_path_get_bounds(const sk_path_t* cpath, sk_rect_t* crect) {
221 const SkPath& path = AsPath(*cpath);
222
223 if (path.isEmpty()) {
224 if (crect) {
225 *crect = ToRect(SkRect::MakeEmpty());
226 }
227 return false;
228 }
229
230 if (crect) {
231 *crect = ToRect(path.getBounds());
232 }
233 return true;
234}
235
236///////////////////////////////////////////////////////////////////////////////////////////
237
238void sk_canvas_save(sk_canvas_t* ccanvas) {
239 AsCanvas(ccanvas)->save();
240}
241
242void sk_canvas_save_layer(sk_canvas_t* ccanvas, const sk_rect_t* crect, const sk_paint_t* cpaint) {
243 AsCanvas(ccanvas)->drawRect(AsRect(*crect), AsPaint(*cpaint));
244}
245
246void sk_canvas_restore(sk_canvas_t* ccanvas) {
247 AsCanvas(ccanvas)->restore();
248}
249
250void sk_canvas_translate(sk_canvas_t* ccanvas, float dx, float dy) {
251 AsCanvas(ccanvas)->translate(dx, dy);
252}
253
254void sk_canvas_scale(sk_canvas_t* ccanvas, float sx, float sy) {
255 AsCanvas(ccanvas)->scale(sx, sy);
256}
257
258void sk_canvas_rotate_degress(sk_canvas_t* ccanvas, float degrees) {
259 AsCanvas(ccanvas)->rotate(degrees);
260}
261
262void sk_canvas_rotate_radians(sk_canvas_t* ccanvas, float radians) {
263 AsCanvas(ccanvas)->rotate(SkRadiansToDegrees(radians));
264}
265
266void sk_canvas_skew(sk_canvas_t* ccanvas, float sx, float sy) {
267 AsCanvas(ccanvas)->skew(sx, sy);
268}
269
270void sk_canvas_concat(sk_canvas_t* ccanvas, const sk_matrix_t* cmatrix) {
271 SkASSERT(cmatrix);
272 SkMatrix matrix;
273 from_c_matrix(cmatrix, &matrix);
274 AsCanvas(ccanvas)->concat(matrix);
275}
276
277void sk_canvas_clip_rect(sk_canvas_t* ccanvas, const sk_rect_t* crect) {
278 AsCanvas(ccanvas)->clipRect(AsRect(*crect));
279}
280
281void sk_canvas_clip_path(sk_canvas_t* ccanvas, const sk_path_t* cpath) {
282 AsCanvas(ccanvas)->clipPath(AsPath(*cpath));
283}
284
285void sk_canvas_draw_paint(sk_canvas_t* ccanvas, const sk_paint_t* cpaint) {
286 AsCanvas(ccanvas)->drawPaint(AsPaint(*cpaint));
287}
288
289void sk_canvas_draw_rect(sk_canvas_t* ccanvas, const sk_rect_t* crect, const sk_paint_t* cpaint) {
290 AsCanvas(ccanvas)->drawRect(AsRect(*crect), AsPaint(*cpaint));
291}
292
293void sk_canvas_draw_circle(sk_canvas_t* ccanvas, float cx, float cy, float rad,
294 const sk_paint_t* cpaint) {
295 AsCanvas(ccanvas)->drawCircle(cx, cy, rad, AsPaint(*cpaint));
296}
297
298void sk_canvas_draw_oval(sk_canvas_t* ccanvas, const sk_rect_t* crect, const sk_paint_t* cpaint) {
299 AsCanvas(ccanvas)->drawOval(AsRect(*crect), AsPaint(*cpaint));
300}
301
302void sk_canvas_draw_path(sk_canvas_t* ccanvas, const sk_path_t* cpath, const sk_paint_t* cpaint) {
303 AsCanvas(ccanvas)->drawPath(AsPath(*cpath), AsPaint(*cpaint));
304}
305
306void sk_canvas_draw_image(sk_canvas_t* ccanvas, const sk_image_t* cimage, float x, float y,
307 const sk_paint_t* cpaint) {
308 AsCanvas(ccanvas)->drawImage(AsImage(cimage), x, y, AsPaint(cpaint));
309}
310
311void sk_canvas_draw_image_rect(sk_canvas_t* ccanvas, const sk_image_t* cimage,
312 const sk_rect_t* csrcR, const sk_rect_t* cdstR,
313 const sk_paint_t* cpaint) {
314 SkCanvas* canvas = AsCanvas(ccanvas);
315 const SkImage* image = AsImage(cimage);
316 const SkRect& dst = AsRect(*cdstR);
317 const SkPaint* paint = AsPaint(cpaint);
318
319 if (csrcR) {
320 canvas->drawImageRect(image, AsRect(*csrcR), dst, paint);
321 } else {
322 canvas->drawImageRect(image, dst, paint);
323 }
324}
325
326void sk_canvas_draw_picture(sk_canvas_t* ccanvas, const sk_picture_t* cpicture,
327 const sk_matrix_t* cmatrix, const sk_paint_t* cpaint) {
328 const SkMatrix* matrixPtr = NULL;
329 SkMatrix matrix;
330 if (cmatrix) {
331 from_c_matrix(cmatrix, &matrix);
332 matrixPtr = &matrix;
333 }
334 AsCanvas(ccanvas)->drawPicture(AsPicture(cpicture), matrixPtr, AsPaint(cpaint));
335}
336
337///////////////////////////////////////////////////////////////////////////////////////////
338
339sk_surface_t* sk_surface_new_raster(const sk_imageinfo_t* cinfo,
340 const sk_surfaceprops_t* props) {
341 const SkImageInfo* info = reinterpret_cast<const SkImageInfo*>(cinfo);
342 SkPixelGeometry geo = kUnknown_SkPixelGeometry;
343 if (props && !from_c_pixelgeometry(props->pixelGeometry, &geo)) {
344 return NULL;
345 }
346
347 SkSurfaceProps surfProps(0, geo);
348 return (sk_surface_t*)SkSurface::MakeRaster(*info, &surfProps).release();
349}
350
351sk_surface_t* sk_surface_new_raster_direct(const sk_imageinfo_t* cinfo, void* pixels,
352 size_t rowBytes,
353 const sk_surfaceprops_t* props) {
354 const SkImageInfo* info = reinterpret_cast<const SkImageInfo*>(cinfo);
355 SkPixelGeometry geo = kUnknown_SkPixelGeometry;
356 if (props && !from_c_pixelgeometry(props->pixelGeometry, &geo)) {
357 return NULL;
358 }
359
360 SkSurfaceProps surfProps(0, geo);
361 return (sk_surface_t*)SkSurface::MakeRasterDirect(*info, pixels, rowBytes, &surfProps).release();
362}
363
364void sk_surface_unref(sk_surface_t* csurf) {
365 SkSafeUnref((SkSurface*)csurf);
366}
367
368sk_canvas_t* sk_surface_get_canvas(sk_surface_t* csurf) {
369 SkSurface* surf = (SkSurface*)csurf;
370 return (sk_canvas_t*)surf->getCanvas();
371}
372
373sk_image_t* sk_surface_new_image_snapshot(sk_surface_t* csurf) {
374 SkSurface* surf = (SkSurface*)csurf;
375 return (sk_image_t*)surf->makeImageSnapshot().release();
376}
377
378///////////////////////////////////////////////////////////////////////////////////////////
379
380sk_picture_recorder_t* sk_picture_recorder_new() {
381 return ToPictureRecorder(new SkPictureRecorder);
382}
383
384void sk_picture_recorder_delete(sk_picture_recorder_t* crec) {
385 delete AsPictureRecorder(crec);
386}
387
388sk_canvas_t* sk_picture_recorder_begin_recording(sk_picture_recorder_t* crec,
389 const sk_rect_t* cbounds) {
390 return ToCanvas(AsPictureRecorder(crec)->beginRecording(AsRect(*cbounds)));
391}
392
393sk_picture_t* sk_picture_recorder_end_recording(sk_picture_recorder_t* crec) {
394 return ToPicture(AsPictureRecorder(crec)->finishRecordingAsPicture().release());
395}
396
397void sk_picture_ref(sk_picture_t* cpic) {
398 SkSafeRef(AsPicture(cpic));
399}
400
401void sk_picture_unref(sk_picture_t* cpic) {
402 SkSafeUnref(AsPicture(cpic));
403}
404
405uint32_t sk_picture_get_unique_id(sk_picture_t* cpic) {
406 return AsPicture(cpic)->uniqueID();
407}
408
409sk_rect_t sk_picture_get_bounds(sk_picture_t* cpic) {
410 return ToRect(AsPicture(cpic)->cullRect());
411}
412
413///////////////////////////////////////////////////////////////////////////////////////////
414
415sk_data_t* sk_data_new_with_copy(const void* src, size_t length) {
416 return ToData(SkData::MakeWithCopy(src, length).release());
417}
418
419sk_data_t* sk_data_new_from_malloc(const void* memory, size_t length) {
420 return ToData(SkData::MakeFromMalloc(memory, length).release());
421}
422
423sk_data_t* sk_data_new_subset(const sk_data_t* csrc, size_t offset, size_t length) {
424 return ToData(SkData::MakeSubset(AsData(csrc), offset, length).release());
425}
426
427void sk_data_ref(const sk_data_t* cdata) {
428 SkSafeRef(AsData(cdata));
429}
430
431void sk_data_unref(const sk_data_t* cdata) {
432 SkSafeUnref(AsData(cdata));
433}
434
435size_t sk_data_get_size(const sk_data_t* cdata) {
436 return AsData(cdata)->size();
437}
438
439const void* sk_data_get_data(const sk_data_t* cdata) {
440 return AsData(cdata)->data();
441}
442
443///////////////////////////////////////////////////////////////////////////////////////////
444