1 /*
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 "LazyDecodeBitmap.h"
9 #include "SkLua.h"
10 #include "SkLuaCanvas.h"
11 #include "SkPicture.h"
12 #include "SkCommandLineFlags.h"
13 #include "SkGraphics.h"
14 #include "SkStream.h"
15 #include "SkData.h"
16 #include "picture_utils.h"
17 #include "SkOSFile.h"
18 #include "SkImageDecoder.h"
19
20 extern "C" {
21 #include "lua.h"
22 #include "lualib.h"
23 #include "lauxlib.h"
24 }
25
26 static const char gStartCanvasFunc[] = "sk_scrape_startcanvas";
27 static const char gEndCanvasFunc[] = "sk_scrape_endcanvas";
28 static const char gAccumulateFunc[] = "sk_scrape_accumulate";
29 static const char gSummarizeFunc[] = "sk_scrape_summarize";
30
31 // Example usage for the modulo flag:
32 // for i in {0..5}; do lua_pictures --skpPath SKP_PATH -l YOUR_SCRIPT --modulo $i 6 &; done
33 DEFINE_string(modulo, "", "[--modulo <remainder> <divisor>]: only run tests for which "
34 "testIndex %% divisor == remainder.");
35 DEFINE_string2(skpPath, r, "", "Read this .skp file or .skp files from this dir");
36 DEFINE_string2(luaFile, l, "", "File containing lua script to run");
37 DEFINE_string2(headCode, s, "", "Optional lua code to call at beginning");
38 DEFINE_string2(tailFunc, s, "", "Optional lua function to call at end");
39 DEFINE_bool2(quiet, q, false, "Silence all non-error related output");
40
load_picture(const char path[])41 static SkPicture* load_picture(const char path[]) {
42 SkAutoTDelete<SkStream> stream(SkStream::NewFromFile(path));
43 SkPicture* pic = NULL;
44 if (stream.get()) {
45 pic = SkPicture::CreateFromStream(stream.get(), &sk_tools::LazyDecodeBitmap);
46 }
47 return pic;
48 }
49
call_canvas(lua_State * L,SkLuaCanvas * canvas,const char pictureFile[],const char funcName[])50 static void call_canvas(lua_State* L, SkLuaCanvas* canvas,
51 const char pictureFile[], const char funcName[]) {
52 lua_getglobal(L, funcName);
53 if (!lua_isfunction(L, -1)) {
54 int t = lua_type(L, -1);
55 SkDebugf("--- expected %s function %d, ignoring.\n", funcName, t);
56 lua_settop(L, -2);
57 } else {
58 canvas->pushThis();
59 lua_pushstring(L, pictureFile);
60 if (lua_pcall(L, 2, 0, 0) != LUA_OK) {
61 SkDebugf("lua err: %s\n", lua_tostring(L, -1));
62 }
63 }
64 }
65
66 int tool_main(int argc, char** argv);
tool_main(int argc,char ** argv)67 int tool_main(int argc, char** argv) {
68 SkCommandLineFlags::SetUsage("apply lua script to .skp files.");
69 SkCommandLineFlags::Parse(argc, argv);
70
71 if (FLAGS_skpPath.isEmpty()) {
72 SkDebugf(".skp files or directories are required.\n");
73 exit(-1);
74 }
75 if (FLAGS_luaFile.isEmpty()) {
76 SkDebugf("missing luaFile(s)\n");
77 exit(-1);
78 }
79
80 const char* summary = gSummarizeFunc;
81 if (!FLAGS_tailFunc.isEmpty()) {
82 summary = FLAGS_tailFunc[0];
83 }
84
85 SkAutoGraphics ag;
86 SkLua L(summary);
87
88 for (int i = 0; i < FLAGS_luaFile.count(); ++i) {
89 SkAutoDataUnref data(SkData::NewFromFileName(FLAGS_luaFile[i]));
90 if (NULL == data.get()) {
91 data.reset(SkData::NewEmpty());
92 }
93 if (!FLAGS_quiet) {
94 SkDebugf("loading %s...\n", FLAGS_luaFile[i]);
95 }
96 if (!L.runCode(data->data(), data->size())) {
97 SkDebugf("failed to load luaFile %s\n", FLAGS_luaFile[i]);
98 exit(-1);
99 }
100 }
101
102 if (!FLAGS_headCode.isEmpty()) {
103 L.runCode(FLAGS_headCode[0]);
104 }
105
106 int moduloRemainder = -1;
107 int moduloDivisor = -1;
108 SkString moduloStr;
109
110 if (FLAGS_modulo.count() == 2) {
111 moduloRemainder = atoi(FLAGS_modulo[0]);
112 moduloDivisor = atoi(FLAGS_modulo[1]);
113 if (moduloRemainder < 0 || moduloDivisor <= 0 || moduloRemainder >= moduloDivisor) {
114 SkDebugf("invalid modulo values.\n");
115 return -1;
116 }
117 }
118
119 for (int i = 0; i < FLAGS_skpPath.count(); i ++) {
120 SkTArray<SkString> paths;
121 if (sk_isdir(FLAGS_skpPath[i])) {
122 // Add all .skp in this directory.
123 const SkString directory(FLAGS_skpPath[i]);
124 SkString filename;
125 SkOSFile::Iter iter(FLAGS_skpPath[i], "skp");
126 while(iter.next(&filename)) {
127 paths.push_back() = SkOSPath::Join(directory.c_str(), filename.c_str());
128 }
129 } else {
130 // Add this as an .skp itself.
131 paths.push_back() = FLAGS_skpPath[i];
132 }
133
134 for (int i = 0; i < paths.count(); i++) {
135 if (moduloRemainder >= 0) {
136 if ((i % moduloDivisor) != moduloRemainder) {
137 continue;
138 }
139 moduloStr.printf("[%d.%d] ", i, moduloDivisor);
140 }
141 const char* path = paths[i].c_str();
142 if (!FLAGS_quiet) {
143 SkDebugf("scraping %s %s\n", path, moduloStr.c_str());
144 }
145
146 SkAutoTUnref<SkPicture> pic(load_picture(path));
147 if (pic.get()) {
148 SkAutoTUnref<SkLuaCanvas> canvas(
149 new SkLuaCanvas(SkScalarCeilToInt(pic->cullRect().width()),
150 SkScalarCeilToInt(pic->cullRect().height()),
151 L.get(), gAccumulateFunc));
152
153 call_canvas(L.get(), canvas.get(), path, gStartCanvasFunc);
154 canvas->drawPicture(pic);
155 call_canvas(L.get(), canvas.get(), path, gEndCanvasFunc);
156
157 } else {
158 SkDebugf("failed to load\n");
159 }
160 }
161 }
162 return 0;
163 }
164
165 #if !defined SK_BUILD_FOR_IOS
main(int argc,char * const argv[])166 int main(int argc, char * const argv[]) {
167 return tool_main(argc, (char**) argv);
168 }
169 #endif
170