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reed@google.comdff7e112013-05-15 19:34:20 +00001/*
2 * Copyright 2013 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 "SkLuaCanvas.h"
reed@google.com74ce6f02013-05-22 15:13:18 +00009#include "SkLua.h"
reed@google.comdff7e112013-05-15 19:34:20 +000010
11extern "C" {
12 #include "lua.h"
mike@reedtribe.orgf02fe3d2013-05-21 12:20:39 +000013 #include "lauxlib.h"
reed@google.comdff7e112013-05-15 19:34:20 +000014}
15
reed@google.com74ce6f02013-05-22 15:13:18 +000016class AutoCallLua : public SkLua {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +000017public:
reed@google.com74ce6f02013-05-22 15:13:18 +000018 AutoCallLua(lua_State* L, const char func[], const char verb[]) : INHERITED(L) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +000019 lua_getglobal(L, func);
20 if (!lua_isfunction(L, -1)) {
21 int t = lua_type(L, -1);
22 SkDebugf("--- expected function %d\n", t);
23 }
skia.committer@gmail.com539f3642013-05-16 07:01:00 +000024
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +000025 lua_newtable(L);
reed@google.com74ce6f02013-05-22 15:13:18 +000026 this->pushString(verb, "verb");
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +000027 }
28
29 ~AutoCallLua() {
reed@google.com3597b732013-05-22 20:12:50 +000030 lua_State* L = this->get();
reed@google.com74ce6f02013-05-22 15:13:18 +000031 if (lua_pcall(L, 1, 0, 0) != LUA_OK) {
32 SkDebugf("lua err: %s\n", lua_tostring(L, -1));
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +000033 }
reed@google.com74ce6f02013-05-22 15:13:18 +000034 lua_settop(L, -1);
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +000035 }
36
reed@google.come3823fd2013-05-30 18:55:14 +000037 void pushEncodedText(SkPaint::TextEncoding, const void*, size_t);
38
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +000039private:
reed@google.com74ce6f02013-05-22 15:13:18 +000040 typedef SkLua INHERITED;
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +000041};
42
reed@google.com74ce6f02013-05-22 15:13:18 +000043#define AUTO_LUA(verb) AutoCallLua lua(fL, fFunc.c_str(), verb)
reed@google.com9a731042013-05-21 17:52:33 +000044
reed@google.come3823fd2013-05-30 18:55:14 +000045
46///////////////////////////////////////////////////////////////////////////////
47
48void AutoCallLua::pushEncodedText(SkPaint::TextEncoding enc, const void* text,
49 size_t length) {
50 switch (enc) {
51 case SkPaint::kUTF8_TextEncoding:
52 this->pushString((const char*)text, length, "text");
53 break;
54 case SkPaint::kUTF16_TextEncoding: {
55 SkString str;
56 str.setUTF16((const uint16_t*)text, length);
57 this->pushString(str, "text");
58 } break;
59 case SkPaint::kGlyphID_TextEncoding:
reed@google.com7fa2a652014-01-27 13:42:58 +000060 this->pushArrayU16((const uint16_t*)text, SkToInt(length >> 1),
61 "glyphs");
reed@google.come3823fd2013-05-30 18:55:14 +000062 break;
63 case SkPaint::kUTF32_TextEncoding:
64 break;
65 }
66}
67
reed@google.com9a731042013-05-21 17:52:33 +000068///////////////////////////////////////////////////////////////////////////////
69
mike@reedtribe.orgf02fe3d2013-05-21 12:20:39 +000070void SkLuaCanvas::pushThis() {
reed@google.com74ce6f02013-05-22 15:13:18 +000071 SkLua(fL).pushCanvas(this);
mike@reedtribe.orgf02fe3d2013-05-21 12:20:39 +000072}
73
74///////////////////////////////////////////////////////////////////////////////
75
reed@google.comdff7e112013-05-15 19:34:20 +000076SkLuaCanvas::SkLuaCanvas(int width, int height, lua_State* L, const char func[])
commit-bot@chromium.orge2543102014-01-31 19:42:58 +000077 : INHERITED(width, height)
reed@google.comdff7e112013-05-15 19:34:20 +000078 , fL(L)
79 , fFunc(func) {
80}
81
82SkLuaCanvas::~SkLuaCanvas() {}
83
Florin Malita5f6102d2014-06-30 10:13:28 -040084void SkLuaCanvas::willSave() {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +000085 AUTO_LUA("save");
Florin Malita5f6102d2014-06-30 10:13:28 -040086 this->INHERITED::willSave();
reed@google.comdff7e112013-05-15 19:34:20 +000087}
88
commit-bot@chromium.orge54a23f2014-03-12 20:21:48 +000089SkCanvas::SaveLayerStrategy SkLuaCanvas::willSaveLayer(const SkRect* bounds, const SkPaint* paint,
90 SaveFlags flags) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +000091 AUTO_LUA("saveLayer");
92 if (bounds) {
reed@google.com74ce6f02013-05-22 15:13:18 +000093 lua.pushRect(*bounds, "bounds");
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +000094 }
95 if (paint) {
reed@google.com74ce6f02013-05-22 15:13:18 +000096 lua.pushPaint(*paint, "paint");
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +000097 }
commit-bot@chromium.orge54a23f2014-03-12 20:21:48 +000098
99 this->INHERITED::willSaveLayer(bounds, paint, flags);
100 // No need for a layer.
101 return kNoLayer_SaveLayerStrategy;
reed@google.comdff7e112013-05-15 19:34:20 +0000102}
103
commit-bot@chromium.orge54a23f2014-03-12 20:21:48 +0000104void SkLuaCanvas::willRestore() {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000105 AUTO_LUA("restore");
commit-bot@chromium.orge54a23f2014-03-12 20:21:48 +0000106 this->INHERITED::willRestore();
reed@google.comdff7e112013-05-15 19:34:20 +0000107}
108
commit-bot@chromium.org44c48d02014-03-13 20:03:58 +0000109void SkLuaCanvas::didConcat(const SkMatrix& matrix) {
commit-bot@chromium.orgd9ea09e2014-03-25 17:32:26 +0000110 switch (matrix.getType()) {
111 case SkMatrix::kTranslate_Mask: {
112 AUTO_LUA("translate");
113 lua.pushScalar(matrix.getTranslateX(), "dx");
114 lua.pushScalar(matrix.getTranslateY(), "dy");
115 break;
116 }
117 case SkMatrix::kScale_Mask: {
118 AUTO_LUA("scale");
119 lua.pushScalar(matrix.getScaleX(), "sx");
120 lua.pushScalar(matrix.getScaleY(), "sy");
121 break;
122 }
123 default: {
124 AUTO_LUA("concat");
commit-bot@chromium.orgab885be2014-05-13 20:32:32 +0000125 // pushMatrix added in https://codereview.chromium.org/203203004/
126 // Doesn't seem to have ever been working correctly since added
127 // lua.pushMatrix(matrix);
commit-bot@chromium.orgd9ea09e2014-03-25 17:32:26 +0000128 break;
129 }
130 }
131
commit-bot@chromium.org44c48d02014-03-13 20:03:58 +0000132 this->INHERITED::didConcat(matrix);
reed@google.comdff7e112013-05-15 19:34:20 +0000133}
134
commit-bot@chromium.org44c48d02014-03-13 20:03:58 +0000135void SkLuaCanvas::didSetMatrix(const SkMatrix& matrix) {
136 this->INHERITED::didSetMatrix(matrix);
reed@google.comdff7e112013-05-15 19:34:20 +0000137}
138
robertphillips@google.com8f90a892014-02-28 18:19:39 +0000139void SkLuaCanvas::onClipRect(const SkRect& r, SkRegion::Op op, ClipEdgeStyle edgeStyle) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000140 AUTO_LUA("clipRect");
reed@google.com74ce6f02013-05-22 15:13:18 +0000141 lua.pushRect(r, "rect");
robertphillips@google.com8f90a892014-02-28 18:19:39 +0000142 lua.pushBool(kSoft_ClipEdgeStyle == edgeStyle, "aa");
143 this->INHERITED::onClipRect(r, op, edgeStyle);
reed@google.comdff7e112013-05-15 19:34:20 +0000144}
145
robertphillips@google.com8f90a892014-02-28 18:19:39 +0000146void SkLuaCanvas::onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyle edgeStyle) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000147 AUTO_LUA("clipRRect");
reed@google.com74ce6f02013-05-22 15:13:18 +0000148 lua.pushRRect(rrect, "rrect");
robertphillips@google.com8f90a892014-02-28 18:19:39 +0000149 lua.pushBool(kSoft_ClipEdgeStyle == edgeStyle, "aa");
150 this->INHERITED::onClipRRect(rrect, op, edgeStyle);
reed@google.comdff7e112013-05-15 19:34:20 +0000151}
152
robertphillips@google.com8f90a892014-02-28 18:19:39 +0000153void SkLuaCanvas::onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle edgeStyle) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000154 AUTO_LUA("clipPath");
reed@google.com74ce6f02013-05-22 15:13:18 +0000155 lua.pushPath(path, "path");
robertphillips@google.com8f90a892014-02-28 18:19:39 +0000156 lua.pushBool(kSoft_ClipEdgeStyle == edgeStyle, "aa");
157 this->INHERITED::onClipPath(path, op, edgeStyle);
reed@google.comdff7e112013-05-15 19:34:20 +0000158}
159
robertphillips@google.com8f90a892014-02-28 18:19:39 +0000160void SkLuaCanvas::onClipRegion(const SkRegion& deviceRgn, SkRegion::Op op) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000161 AUTO_LUA("clipRegion");
robertphillips@google.com8f90a892014-02-28 18:19:39 +0000162 this->INHERITED::onClipRegion(deviceRgn, op);
reed@google.comdff7e112013-05-15 19:34:20 +0000163}
164
reed41af9662015-01-05 07:49:08 -0800165void SkLuaCanvas::onDrawPaint(const SkPaint& paint) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000166 AUTO_LUA("drawPaint");
reed@google.com74ce6f02013-05-22 15:13:18 +0000167 lua.pushPaint(paint, "paint");
reed@google.comdff7e112013-05-15 19:34:20 +0000168}
169
reed41af9662015-01-05 07:49:08 -0800170void SkLuaCanvas::onDrawPoints(PointMode mode, size_t count,
reed@google.comdff7e112013-05-15 19:34:20 +0000171 const SkPoint pts[], const SkPaint& paint) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000172 AUTO_LUA("drawPoints");
commit-bot@chromium.org2cfa3202014-04-19 22:00:40 +0000173 lua.pushArrayPoint(pts, SkToInt(count), "points");
reed@google.com74ce6f02013-05-22 15:13:18 +0000174 lua.pushPaint(paint, "paint");
reed@google.comdff7e112013-05-15 19:34:20 +0000175}
176
reed41af9662015-01-05 07:49:08 -0800177void SkLuaCanvas::onDrawOval(const SkRect& rect, const SkPaint& paint) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000178 AUTO_LUA("drawOval");
reed@google.com74ce6f02013-05-22 15:13:18 +0000179 lua.pushRect(rect, "rect");
180 lua.pushPaint(paint, "paint");
reed@google.comdff7e112013-05-15 19:34:20 +0000181}
182
reed41af9662015-01-05 07:49:08 -0800183void SkLuaCanvas::onDrawRect(const SkRect& rect, const SkPaint& paint) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000184 AUTO_LUA("drawRect");
reed@google.com74ce6f02013-05-22 15:13:18 +0000185 lua.pushRect(rect, "rect");
186 lua.pushPaint(paint, "paint");
reed@google.comdff7e112013-05-15 19:34:20 +0000187}
188
reed41af9662015-01-05 07:49:08 -0800189void SkLuaCanvas::onDrawRRect(const SkRRect& rrect, const SkPaint& paint) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000190 AUTO_LUA("drawRRect");
reed@google.com74ce6f02013-05-22 15:13:18 +0000191 lua.pushRRect(rrect, "rrect");
192 lua.pushPaint(paint, "paint");
reed@google.comdff7e112013-05-15 19:34:20 +0000193}
194
commit-bot@chromium.orgab582732014-02-21 12:20:45 +0000195void SkLuaCanvas::onDrawDRRect(const SkRRect& outer, const SkRRect& inner,
196 const SkPaint& paint) {
197 AUTO_LUA("drawDRRect");
198 lua.pushRRect(outer, "outer");
199 lua.pushRRect(inner, "inner");
200 lua.pushPaint(paint, "paint");
201}
202
reed41af9662015-01-05 07:49:08 -0800203void SkLuaCanvas::onDrawPath(const SkPath& path, const SkPaint& paint) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000204 AUTO_LUA("drawPath");
reed@google.com74ce6f02013-05-22 15:13:18 +0000205 lua.pushPath(path, "path");
206 lua.pushPaint(paint, "paint");
reed@google.comdff7e112013-05-15 19:34:20 +0000207}
208
reed41af9662015-01-05 07:49:08 -0800209void SkLuaCanvas::onDrawBitmap(const SkBitmap& bitmap, SkScalar x, SkScalar y,
210 const SkPaint* paint) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000211 AUTO_LUA("drawBitmap");
212 if (paint) {
reed@google.com74ce6f02013-05-22 15:13:18 +0000213 lua.pushPaint(*paint, "paint");
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000214 }
reed@google.comdff7e112013-05-15 19:34:20 +0000215}
216
reed41af9662015-01-05 07:49:08 -0800217void SkLuaCanvas::onDrawBitmapRect(const SkBitmap& bitmap, const SkRect* src, const SkRect& dst,
218 const SkPaint* paint, DrawBitmapRectFlags flags) {
219 AUTO_LUA("drawBitmapRect");
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000220 if (paint) {
reed@google.com74ce6f02013-05-22 15:13:18 +0000221 lua.pushPaint(*paint, "paint");
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000222 }
reed@google.comdff7e112013-05-15 19:34:20 +0000223}
224
reed41af9662015-01-05 07:49:08 -0800225void SkLuaCanvas::onDrawBitmapNine(const SkBitmap& bitmap, const SkIRect& center, const SkRect& dst,
226 const SkPaint* paint) {
227 AUTO_LUA("drawBitmapNine");
228 if (paint) {
229 lua.pushPaint(*paint, "paint");
230 }
231}
232
233void SkLuaCanvas::onDrawImage(const SkImage* image, SkScalar x, SkScalar y, const SkPaint* paint) {
234 AUTO_LUA("drawImage");
235 if (paint) {
236 lua.pushPaint(*paint, "paint");
237 }
238}
239
240void SkLuaCanvas::onDrawImageRect(const SkImage* image, const SkRect* src, const SkRect& dst,
241 const SkPaint* paint) {
242 AUTO_LUA("drawImageRect");
243 if (paint) {
244 lua.pushPaint(*paint, "paint");
245 }
246}
247
248void SkLuaCanvas::onDrawSprite(const SkBitmap& bitmap, int x, int y, const SkPaint* paint) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000249 AUTO_LUA("drawSprite");
250 if (paint) {
reed@google.com74ce6f02013-05-22 15:13:18 +0000251 lua.pushPaint(*paint, "paint");
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000252 }
reed@google.comdff7e112013-05-15 19:34:20 +0000253}
254
reed@google.come0d9ce82014-04-23 04:00:17 +0000255void SkLuaCanvas::onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y,
256 const SkPaint& paint) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000257 AUTO_LUA("drawText");
reed@google.come3823fd2013-05-30 18:55:14 +0000258 lua.pushEncodedText(paint.getTextEncoding(), text, byteLength);
reed@google.com74ce6f02013-05-22 15:13:18 +0000259 lua.pushPaint(paint, "paint");
reed@google.comdff7e112013-05-15 19:34:20 +0000260}
261
reed@google.come0d9ce82014-04-23 04:00:17 +0000262void SkLuaCanvas::onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[],
263 const SkPaint& paint) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000264 AUTO_LUA("drawPosText");
reed@google.come3823fd2013-05-30 18:55:14 +0000265 lua.pushEncodedText(paint.getTextEncoding(), text, byteLength);
reed@google.com74ce6f02013-05-22 15:13:18 +0000266 lua.pushPaint(paint, "paint");
reed@google.comdff7e112013-05-15 19:34:20 +0000267}
268
reed@google.come0d9ce82014-04-23 04:00:17 +0000269void SkLuaCanvas::onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
270 SkScalar constY, const SkPaint& paint) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000271 AUTO_LUA("drawPosTextH");
reed@google.come3823fd2013-05-30 18:55:14 +0000272 lua.pushEncodedText(paint.getTextEncoding(), text, byteLength);
reed@google.com74ce6f02013-05-22 15:13:18 +0000273 lua.pushPaint(paint, "paint");
reed@google.comdff7e112013-05-15 19:34:20 +0000274}
275
reed@google.come0d9ce82014-04-23 04:00:17 +0000276void SkLuaCanvas::onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path,
277 const SkMatrix* matrix, const SkPaint& paint) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000278 AUTO_LUA("drawTextOnPath");
reed@google.com74ce6f02013-05-22 15:13:18 +0000279 lua.pushPath(path, "path");
reed@google.come3823fd2013-05-30 18:55:14 +0000280 lua.pushEncodedText(paint.getTextEncoding(), text, byteLength);
reed@google.com74ce6f02013-05-22 15:13:18 +0000281 lua.pushPaint(paint, "paint");
reed@google.comdff7e112013-05-15 19:34:20 +0000282}
283
fmalitab7425172014-08-26 07:56:44 -0700284void SkLuaCanvas::onDrawTextBlob(const SkTextBlob *blob, SkScalar x, SkScalar y,
285 const SkPaint &paint) {
286 AUTO_LUA("drawTextBlob");
287 lua.pushTextBlob(blob, "blob");
288 lua.pushScalar(x, "x");
289 lua.pushScalar(y, "y");
290 lua.pushPaint(paint, "paint");
291}
292
reedd5fa1a42014-08-09 11:08:05 -0700293void SkLuaCanvas::onDrawPicture(const SkPicture* picture, const SkMatrix* matrix,
294 const SkPaint* paint) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000295 AUTO_LUA("drawPicture");
reed@google.comdff7e112013-05-15 19:34:20 +0000296 // call through so we can see the nested picture ops
reedd5fa1a42014-08-09 11:08:05 -0700297 this->INHERITED::onDrawPicture(picture, matrix, paint);
reed@google.comdff7e112013-05-15 19:34:20 +0000298}
299
reed41af9662015-01-05 07:49:08 -0800300void SkLuaCanvas::onDrawVertices(VertexMode vmode, int vertexCount,
reed@google.comdff7e112013-05-15 19:34:20 +0000301 const SkPoint vertices[], const SkPoint texs[],
302 const SkColor colors[], SkXfermode* xmode,
303 const uint16_t indices[], int indexCount,
304 const SkPaint& paint) {
mike@reedtribe.org1c5a94f2013-05-16 04:20:23 +0000305 AUTO_LUA("drawVertices");
reed@google.com74ce6f02013-05-22 15:13:18 +0000306 lua.pushPaint(paint, "paint");
reed@google.comdff7e112013-05-15 19:34:20 +0000307}