add SkLuaCanvas
add lua 5.2 to third_party
BUG=
R=bungeman@google.com
Review URL: https://codereview.chromium.org/14907017
git-svn-id: http://skia.googlecode.com/svn/trunk@9149 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tools/lua/lua_pictures.cpp b/tools/lua/lua_pictures.cpp
new file mode 100644
index 0000000..2d5fe46
--- /dev/null
+++ b/tools/lua/lua_pictures.cpp
@@ -0,0 +1,153 @@
+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkLuaCanvas.h"
+#include "SkPicture.h"
+#include "SkCommandLineFlags.h"
+#include "SkGraphics.h"
+#include "SkStream.h"
+#include "SkData.h"
+#include "picture_utils.h"
+#include "SkOSFile.h"
+#include "SkImageDecoder.h"
+
+extern "C" {
+ #include "lua.h"
+ #include "lualib.h"
+ #include "lauxlib.h"
+}
+
+// PictureRenderingFlags.cpp
+extern bool lazy_decode_bitmap(const void* buffer, size_t size, SkBitmap*);
+
+
+// Flags used by this file, alphabetically:
+DEFINE_string2(skpPath, r, "", "Read .skp files from this dir");
+DEFINE_string2(luaFile, l, "", "File containing lua script to run");
+
+static SkPicture* load_picture(const char path[]) {
+ SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path));
+ SkPicture* pic = NULL;
+ if (stream.get()) {
+ bool success;
+ pic = SkNEW_ARGS(SkPicture, (stream.get(), &success,
+ &lazy_decode_bitmap));
+ if (!success) {
+ SkDELETE(pic);
+ pic = NULL;
+ }
+ }
+ return pic;
+}
+
+static SkData* read_into_data(const char file[]) {
+ SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(file));
+ if (!stream.get()) {
+ return SkData::NewEmpty();
+ }
+ size_t len = stream->getLength();
+ void* buffer = sk_malloc_throw(len);
+ stream->read(buffer, len);
+ return SkData::NewFromMalloc(buffer, len);
+}
+
+class SkAutoLua {
+public:
+ SkAutoLua(const char termCode[] = NULL) : fTermCode(termCode) {
+ fL = luaL_newstate();
+ luaL_openlibs(fL);
+ }
+ ~SkAutoLua() {
+ if (fTermCode.size() > 0) {
+ lua_getglobal(fL, fTermCode.c_str());
+ if (lua_pcall(fL, 0, 0, 0) != LUA_OK) {
+ SkDebugf("lua err: %s\n", lua_tostring(fL, -1));
+ }
+ }
+ lua_close(fL);
+ }
+
+ lua_State* get() const { return fL; }
+ lua_State* operator*() const { return fL; }
+ lua_State* operator->() const { return fL; }
+
+ bool load(const char code[]) {
+ int err = luaL_loadstring(fL, code) || lua_pcall(fL, 0, 0, 0);
+ if (err) {
+ SkDebugf("--- lua failed\n");
+ return false;
+ }
+ return true;
+ }
+ bool load(const void* code, size_t size) {
+ SkString str((const char*)code, size);
+ return load(str.c_str());
+ int err = luaL_loadbufferx(fL, (const char*)code, size, NULL, NULL)
+ || lua_pcall(fL, 0, 0, 0);
+ if (err) {
+ SkDebugf("--- lua failed\n");
+ return false;
+ }
+ return true;
+ }
+private:
+ lua_State* fL;
+ SkString fTermCode;
+};
+
+int tool_main(int argc, char** argv);
+int tool_main(int argc, char** argv) {
+ SkCommandLineFlags::SetUsage("apply lua script to .skp files.");
+ SkCommandLineFlags::Parse(argc, argv);
+
+ if (FLAGS_skpPath.isEmpty()) {
+ SkDebugf(".skp files or directories are required.\n");
+ exit(-1);
+ }
+ if (FLAGS_luaFile.isEmpty()) {
+ SkDebugf("missing luaFile\n");
+ exit(-1);
+ }
+
+ SkAutoDataUnref data(read_into_data(FLAGS_luaFile[0]));
+
+ SkAutoGraphics ag;
+ SkAutoLua L("summarize");
+ if (!L.load(data->data(), data->size())) {
+ SkDebugf("failed to load luaFile %s\n", FLAGS_luaFile[0]);
+ exit(-1);
+ }
+
+ for (int i = 0; i < FLAGS_skpPath.count(); i ++) {
+ SkOSFile::Iter iter(FLAGS_skpPath[i], "skp");
+ SkString inputFilename;
+
+ while (iter.next(&inputFilename)) {
+ SkString inputPath;
+ SkString inputAsSkString(FLAGS_skpPath[i]);
+ sk_tools::make_filepath(&inputPath, inputAsSkString, inputFilename);
+
+ const char* path = inputPath.c_str();
+ SkAutoTUnref<SkPicture> pic(load_picture(path));
+
+ if (pic.get()) {
+ SkDebugf("scraping %s\n", path);
+ SkLuaCanvas canvas(pic->width(), pic->height(), L.get(), "accumulate");
+ canvas.drawPicture(*pic);
+ } else {
+ SkDebugf("failed to load %s\n", path);
+ }
+ }
+ }
+ return 0;
+}
+
+#if !defined SK_BUILD_FOR_IOS
+int main(int argc, char * const argv[]) {
+ return tool_main(argc, (char**) argv);
+}
+#endif
diff --git a/tools/lua/scrape.lua b/tools/lua/scrape.lua
new file mode 100644
index 0000000..1d9cda9
--- /dev/null
+++ b/tools/lua/scrape.lua
@@ -0,0 +1,15 @@
+canvas = {}
+total = 0
+function accumulate(verb)
+ total = total + 1
+ n = canvas[verb] or 0
+ n = n + 1
+ canvas[verb] = n
+end
+function summarize()
+ io.write('total='..total..' ')
+ for k, v in next, canvas do
+ io.write(k..'='..v..' ')
+ end
+end
+