2 * Copyright (c) 2020 - 2023 the ThorVG project. All rights reserved.
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in all
12 * copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 #ifndef _TVG_SHAPE_IMPL_H_
24 #define _TVG_SHAPE_IMPL_H_
29 /************************************************************************/
30 /* Internal Class Implementation */
31 /************************************************************************/
35 RenderShape rs; //shape data
36 RenderData rdata = nullptr; //engine data
37 uint32_t flag = RenderUpdateFlag::None;
39 bool dispose(RenderMethod& renderer)
41 auto ret = renderer.dispose(rdata);
46 bool render(RenderMethod& renderer)
48 return renderer.renderShape(rdata);
51 void* update(RenderMethod& renderer, const RenderTransform* transform, uint32_t opacity, Array<RenderData>& clips, RenderUpdateFlag pFlag, bool clipper)
53 rdata = renderer.prepare(rs, rdata, transform, opacity, clips, static_cast<RenderUpdateFlag>(pFlag | flag), clipper);
54 flag = RenderUpdateFlag::None;
58 RenderRegion bounds(RenderMethod& renderer)
60 return renderer.region(rdata);
63 bool bounds(float* x, float* y, float* w, float* h)
66 if (rs.path.ptsCnt > 0 ) {
67 Point min = { rs.path.pts[0].x, rs.path.pts[0].y };
68 Point max = { rs.path.pts[0].x, rs.path.pts[0].y };
70 for (uint32_t i = 1; i < rs.path.ptsCnt; ++i) {
71 if (rs.path.pts[i].x < min.x) min.x = rs.path.pts[i].x;
72 if (rs.path.pts[i].y < min.y) min.y = rs.path.pts[i].y;
73 if (rs.path.pts[i].x > max.x) max.x = rs.path.pts[i].x;
74 if (rs.path.pts[i].y > max.y) max.y = rs.path.pts[i].y;
79 if (w) *w = max.x - min.x;
80 if (h) *h = max.y - min.y;
85 if (x) *x -= rs.stroke->width * 0.5f;
86 if (y) *y -= rs.stroke->width * 0.5f;
87 if (w) *w += rs.stroke->width;
88 if (h) *h += rs.stroke->width;
90 return rs.path.ptsCnt > 0 ? true : false;
93 void reserveCmd(uint32_t cmdCnt)
95 if (cmdCnt <= rs.path.reservedCmdCnt) return;
96 rs.path.reservedCmdCnt = cmdCnt;
97 rs.path.cmds = static_cast<PathCommand*>(realloc(rs.path.cmds, sizeof(PathCommand) * rs.path.reservedCmdCnt));
100 void reservePts(uint32_t ptsCnt)
102 if (ptsCnt <= rs.path.reservedPtsCnt) return;
103 rs.path.reservedPtsCnt = ptsCnt;
104 rs.path.pts = static_cast<Point*>(realloc(rs.path.pts, sizeof(Point) * rs.path.reservedPtsCnt));
107 void grow(uint32_t cmdCnt, uint32_t ptsCnt)
109 reserveCmd(rs.path.cmdCnt + cmdCnt);
110 reservePts(rs.path.ptsCnt + ptsCnt);
118 flag = RenderUpdateFlag::Path;
121 void append(const PathCommand* cmds, uint32_t cmdCnt, const Point* pts, uint32_t ptsCnt)
123 memcpy(rs.path.cmds + rs.path.cmdCnt, cmds, sizeof(PathCommand) * cmdCnt);
124 memcpy(rs.path.pts + rs.path.ptsCnt, pts, sizeof(Point) * ptsCnt);
125 rs.path.cmdCnt += cmdCnt;
126 rs.path.ptsCnt += ptsCnt;
128 flag |= RenderUpdateFlag::Path;
131 void moveTo(float x, float y)
133 if (rs.path.cmdCnt + 1 > rs.path.reservedCmdCnt) reserveCmd((rs.path.cmdCnt + 1) * 2);
134 if (rs.path.ptsCnt + 2 > rs.path.reservedPtsCnt) reservePts((rs.path.ptsCnt + 2) * 2);
136 rs.path.cmds[rs.path.cmdCnt++] = PathCommand::MoveTo;
137 rs.path.pts[rs.path.ptsCnt++] = {x, y};
139 flag |= RenderUpdateFlag::Path;
142 void lineTo(float x, float y)
144 if (rs.path.cmdCnt + 1 > rs.path.reservedCmdCnt) reserveCmd((rs.path.cmdCnt + 1) * 2);
145 if (rs.path.ptsCnt + 2 > rs.path.reservedPtsCnt) reservePts((rs.path.ptsCnt + 2) * 2);
147 rs.path.cmds[rs.path.cmdCnt++] = PathCommand::LineTo;
148 rs.path.pts[rs.path.ptsCnt++] = {x, y};
150 flag |= RenderUpdateFlag::Path;
153 void cubicTo(float cx1, float cy1, float cx2, float cy2, float x, float y)
155 if (rs.path.cmdCnt + 1 > rs.path.reservedCmdCnt) reserveCmd((rs.path.cmdCnt + 1) * 2);
156 if (rs.path.ptsCnt + 3 > rs.path.reservedPtsCnt) reservePts((rs.path.ptsCnt + 3) * 2);
158 rs.path.cmds[rs.path.cmdCnt++] = PathCommand::CubicTo;
159 rs.path.pts[rs.path.ptsCnt++] = {cx1, cy1};
160 rs.path.pts[rs.path.ptsCnt++] = {cx2, cy2};
161 rs.path.pts[rs.path.ptsCnt++] = {x, y};
163 flag |= RenderUpdateFlag::Path;
168 if (rs.path.cmdCnt > 0 && rs.path.cmds[rs.path.cmdCnt - 1] == PathCommand::Close) return;
170 if (rs.path.cmdCnt + 1 > rs.path.reservedCmdCnt) reserveCmd((rs.path.cmdCnt + 1) * 2);
171 rs.path.cmds[rs.path.cmdCnt++] = PathCommand::Close;
173 flag |= RenderUpdateFlag::Path;
176 bool strokeWidth(float width)
178 //TODO: Size Exception?
180 if (!rs.stroke) rs.stroke = new RenderStroke();
181 rs.stroke->width = width;
182 flag |= RenderUpdateFlag::Stroke;
187 bool strokeCap(StrokeCap cap)
189 if (!rs.stroke) rs.stroke = new RenderStroke();
190 rs.stroke->cap = cap;
191 flag |= RenderUpdateFlag::Stroke;
196 bool strokeJoin(StrokeJoin join)
198 if (!rs.stroke) rs.stroke = new RenderStroke();
199 rs.stroke->join = join;
200 flag |= RenderUpdateFlag::Stroke;
205 bool strokeColor(uint8_t r, uint8_t g, uint8_t b, uint8_t a)
207 if (!rs.stroke) rs.stroke = new RenderStroke();
208 if (rs.stroke->fill) {
209 delete(rs.stroke->fill);
210 rs.stroke->fill = nullptr;
211 flag |= RenderUpdateFlag::GradientStroke;
214 rs.stroke->color[0] = r;
215 rs.stroke->color[1] = g;
216 rs.stroke->color[2] = b;
217 rs.stroke->color[3] = a;
219 flag |= RenderUpdateFlag::Stroke;
224 Result strokeFill(unique_ptr<Fill> f)
226 auto p = f.release();
227 if (!p) return Result::MemoryCorruption;
229 if (!rs.stroke) rs.stroke = new RenderStroke();
230 if (rs.stroke->fill && rs.stroke->fill != p) delete(rs.stroke->fill);
233 flag |= RenderUpdateFlag::Stroke;
234 flag |= RenderUpdateFlag::GradientStroke;
236 return Result::Success;
239 bool strokeDash(const float* pattern, uint32_t cnt)
242 if (!pattern && cnt == 0) {
243 free(rs.stroke->dashPattern);
244 rs.stroke->dashPattern = nullptr;
246 if (!rs.stroke) rs.stroke = new RenderStroke();
247 if (rs.stroke->dashCnt != cnt) {
248 free(rs.stroke->dashPattern);
249 rs.stroke->dashPattern = nullptr;
251 if (!rs.stroke->dashPattern) {
252 rs.stroke->dashPattern = static_cast<float*>(malloc(sizeof(float) * cnt));
253 if (!rs.stroke->dashPattern) return false;
255 for (uint32_t i = 0; i < cnt; ++i) {
256 rs.stroke->dashPattern[i] = pattern[i];
259 rs.stroke->dashCnt = cnt;
260 flag |= RenderUpdateFlag::Stroke;
267 auto ret = Shape::gen();
269 auto dup = ret.get()->pImpl;
270 dup->rs.rule = rs.rule;
273 memcpy(dup->rs.color, rs.color, sizeof(rs.color));
274 dup->flag = RenderUpdateFlag::Color;
277 if (rs.path.cmdCnt > 0 && rs.path.ptsCnt > 0) {
278 dup->rs.path.cmdCnt = rs.path.cmdCnt;
279 dup->rs.path.reservedCmdCnt = rs.path.reservedCmdCnt;
280 dup->rs.path.ptsCnt = rs.path.ptsCnt;
281 dup->rs.path.reservedPtsCnt = rs.path.reservedPtsCnt;
283 dup->rs.path.cmds = static_cast<PathCommand*>(malloc(sizeof(PathCommand) * dup->rs.path.reservedCmdCnt));
284 if (dup->rs.path.cmds) memcpy(dup->rs.path.cmds, rs.path.cmds, sizeof(PathCommand) * dup->rs.path.cmdCnt);
286 dup->rs.path.pts = static_cast<Point*>(malloc(sizeof(Point) * dup->rs.path.reservedPtsCnt));
287 if (dup->rs.path.pts) memcpy(dup->rs.path.pts, rs.path.pts, sizeof(Point) * dup->rs.path.ptsCnt);
289 dup->flag |= RenderUpdateFlag::Path;
293 dup->rs.stroke = new RenderStroke();
294 dup->rs.stroke->width = rs.stroke->width;
295 dup->rs.stroke->dashCnt = rs.stroke->dashCnt;
296 dup->rs.stroke->cap = rs.stroke->cap;
297 dup->rs.stroke->join = rs.stroke->join;
298 memcpy(dup->rs.stroke->color, rs.stroke->color, sizeof(rs.stroke->color));
300 if (rs.stroke->dashCnt > 0) {
301 dup->rs.stroke->dashPattern = static_cast<float*>(malloc(sizeof(float) * rs.stroke->dashCnt));
302 memcpy(dup->rs.stroke->dashPattern, rs.stroke->dashPattern, sizeof(float) * rs.stroke->dashCnt);
305 dup->flag |= RenderUpdateFlag::Stroke;
307 if (rs.stroke->fill) {
308 dup->rs.stroke->fill = rs.stroke->fill->duplicate();
309 dup->flag |= RenderUpdateFlag::GradientStroke;
315 dup->rs.fill = rs.fill->duplicate();
316 dup->flag |= RenderUpdateFlag::Gradient;
319 return ret.release();
328 #endif //_TVG_SHAPE_IMPL_H_