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/*
* 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 "SkLua.h"
#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 "SkOSPath.h"
#include <stdlib.h>
extern "C" {
#include "lua.h"
#include "lualib.h"
#include "lauxlib.h"
}
static const char gStartCanvasFunc[] = "sk_scrape_startcanvas";
static const char gEndCanvasFunc[] = "sk_scrape_endcanvas";
static const char gAccumulateFunc[] = "sk_scrape_accumulate";
static const char gSummarizeFunc[] = "sk_scrape_summarize";
// Example usage for the modulo flag:
// for i in {0..5}; do lua_pictures --skpPath SKP_PATH -l YOUR_SCRIPT --modulo $i 6 &; done
DEFINE_string(modulo, "", "[--modulo <remainder> <divisor>]: only run tests for which "
"testIndex %% divisor == remainder.");
DEFINE_string2(skpPath, r, "", "Read this .skp file or .skp files from this dir");
DEFINE_string2(luaFile, l, "", "File containing lua script to run");
DEFINE_string2(headCode, s, "", "Optional lua code to call at beginning");
DEFINE_string2(tailFunc, s, "", "Optional lua function to call at end");
DEFINE_bool2(quiet, q, false, "Silence all non-error related output");
static sk_sp<SkPicture> load_picture(const char path[]) {
std::unique_ptr<SkStream> stream = SkStream::MakeFromFile(path);
if (stream) {
return SkPicture::MakeFromStream(stream.get());
}
return nullptr;
}
static void call_canvas(lua_State* L, SkLuaCanvas* canvas,
const char pictureFile[], const char funcName[]) {
lua_getglobal(L, funcName);
if (!lua_isfunction(L, -1)) {
int t = lua_type(L, -1);
SkDebugf("--- expected %s function %d, ignoring.\n", funcName, t);
lua_settop(L, -2);
} else {
canvas->pushThis();
lua_pushstring(L, pictureFile);
if (lua_pcall(L, 2, 0, 0) != LUA_OK) {
SkDebugf("lua err: %s\n", lua_tostring(L, -1));
}
}
}
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(s)\n");
exit(-1);
}
const char* summary = gSummarizeFunc;
if (!FLAGS_tailFunc.isEmpty()) {
summary = FLAGS_tailFunc[0];
}
SkAutoGraphics ag;
SkLua L(summary);
for (int i = 0; i < FLAGS_luaFile.count(); ++i) {
sk_sp<SkData> data(SkData::MakeFromFileName(FLAGS_luaFile[i]));
if (!data) {
data = SkData::MakeEmpty();
}
if (!FLAGS_quiet) {
SkDebugf("loading %s...\n", FLAGS_luaFile[i]);
}
if (!L.runCode(data->data(), data->size())) {
SkDebugf("failed to load luaFile %s\n", FLAGS_luaFile[i]);
exit(-1);
}
}
if (!FLAGS_headCode.isEmpty()) {
L.runCode(FLAGS_headCode[0]);
}
int moduloRemainder = -1;
int moduloDivisor = -1;
SkString moduloStr;
if (FLAGS_modulo.count() == 2) {
moduloRemainder = atoi(FLAGS_modulo[0]);
moduloDivisor = atoi(FLAGS_modulo[1]);
if (moduloRemainder < 0 || moduloDivisor <= 0 || moduloRemainder >= moduloDivisor) {
SkDebugf("invalid modulo values.\n");
return -1;
}
}
for (int i = 0; i < FLAGS_skpPath.count(); i ++) {
SkTArray<SkString> paths;
if (sk_isdir(FLAGS_skpPath[i])) {
// Add all .skp in this directory.
const SkString directory(FLAGS_skpPath[i]);
SkString filename;
SkOSFile::Iter iter(FLAGS_skpPath[i], "skp");
while(iter.next(&filename)) {
paths.push_back() = SkOSPath::Join(directory.c_str(), filename.c_str());
}
} else {
// Add this as an .skp itself.
paths.push_back() = FLAGS_skpPath[i];
}
for (int i = 0; i < paths.count(); i++) {
if (moduloRemainder >= 0) {
if ((i % moduloDivisor) != moduloRemainder) {
continue;
}
moduloStr.printf("[%d.%d] ", i, moduloDivisor);
}
const char* path = paths[i].c_str();
if (!FLAGS_quiet) {
SkDebugf("scraping %s %s\n", path, moduloStr.c_str());
}
auto pic(load_picture(path));
if (pic.get()) {
std::unique_ptr<SkLuaCanvas> canvas(
new SkLuaCanvas(SkScalarCeilToInt(pic->cullRect().width()),
SkScalarCeilToInt(pic->cullRect().height()),
L.get(), gAccumulateFunc));
call_canvas(L.get(), canvas.get(), path, gStartCanvasFunc);
canvas->drawPicture(pic);
call_canvas(L.get(), canvas.get(), path, gEndCanvasFunc);
} else {
SkDebugf("failed to load\n");
}
}
}
return 0;
}
#if !defined SK_BUILD_FOR_IOS
int main(int argc, char * const argv[]) {
return tool_main(argc, (char**) argv);
}
#endif
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