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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkColorPriv.h"
#include "SkDevice.h"
#include "SkImageEncoder.h"
#include "SkOSFile.h"
#include "SkPicture.h"
#include "SkStream.h"
#include "SkString.h"
#include "SkTArray.h"
#include "PictureRenderer.h"
#include "picture_utils.h"
static void usage(const char* argv0) {
SkDebugf("SkPicture rendering tool\n");
SkDebugf("\n"
"Usage: \n"
" %s <input>... <outputDir> \n"
" [--pipe | --tile width[%] height[%]]"
, argv0);
SkDebugf("\n\n");
SkDebugf(
" input: A list of directories and files to use as input.\n"
" Files are expected to have the .skp extension.\n");
SkDebugf(
" outputDir: directory to write the rendered images.\n");
SkDebugf(
" --pipe : Render using a SkGPipe\n");
SkDebugf(
" --tile width[%] height[%]: Render using tiles with the given dimensions.\n");
}
static void make_output_filepath(SkString* path, const SkString& dir,
const SkString& name) {
sk_tools::make_filepath(path, dir, name);
path->remove(path->size() - 3, 3);
path->append("png");
}
/* since PNG insists on unpremultiplying our alpha, we take no precision chances
and force all pixels to be 100% opaque, otherwise on compare we may not get
a perfect match.
*/
static void force_all_opaque(const SkBitmap& bitmap) {
SkAutoLockPixels lock(bitmap);
for (int y = 0; y < bitmap.height(); y++) {
for (int x = 0; x < bitmap.width(); x++) {
*bitmap.getAddr32(x, y) |= (SK_A32_MASK << SK_A32_SHIFT);
}
}
}
static bool write_bitmap(const SkString& path, const SkBitmap& bitmap) {
SkBitmap copy;
bitmap.copyTo(©, SkBitmap::kARGB_8888_Config);
force_all_opaque(copy);
return SkImageEncoder::EncodeFile(path.c_str(), copy,
SkImageEncoder::kPNG_Type, 100);
}
static void write_output(const SkString& outputDir, const SkString& inputFilename,
const SkBitmap& bitmap) {
SkString outputPath;
make_output_filepath(&outputPath, outputDir, inputFilename);
bool isWritten = write_bitmap(outputPath, bitmap);
if (!isWritten) {
SkDebugf("Could not write to file %s\n", outputPath.c_str());
}
}
static void render_picture(const SkString& inputPath, const SkString& outputDir,
sk_tools::PictureRenderer& renderer) {
SkString inputFilename;
sk_tools::get_basename(&inputFilename, inputPath);
SkFILEStream inputStream;
inputStream.setPath(inputPath.c_str());
if (!inputStream.isValid()) {
SkDebugf("Could not open file %s\n", inputPath.c_str());
return;
}
SkPicture picture(&inputStream);
SkBitmap bitmap;
sk_tools::setup_bitmap(&bitmap, picture.width(), picture.height());
SkCanvas canvas(bitmap);
renderer.init(picture);
renderer.render(&picture, &canvas);
write_output(outputDir, inputFilename, bitmap);
}
static void process_input(const SkString& input, const SkString& outputDir,
sk_tools::PictureRenderer& renderer) {
SkOSFile::Iter iter(input.c_str(), "skp");
SkString inputFilename;
if (iter.next(&inputFilename)) {
do {
SkString inputPath;
sk_tools::make_filepath(&inputPath, input, inputFilename);
render_picture(inputPath, outputDir, renderer);
} while(iter.next(&inputFilename));
} else {
SkString inputPath(input);
render_picture(inputPath, outputDir, renderer);
}
}
static bool is_percentage(char* const string) {
SkString skString(string);
return skString.endsWith("%");
}
static void parse_commandline(int argc, char* const argv[], SkTArray<SkString>* inputs,
sk_tools::PictureRenderer*& renderer){
const char* argv0 = argv[0];
char* const* stop = argv + argc;
for (++argv; argv < stop; ++argv) {
if (0 == strcmp(*argv, "--pipe")) {
renderer = SkNEW(sk_tools::PipePictureRenderer);
} else if (0 == strcmp(*argv, "--tile")) {
sk_tools::TiledPictureRenderer* tileRenderer = SkNEW(sk_tools::TiledPictureRenderer);
++argv;
if (argv < stop) {
if (is_percentage(*argv)) {
tileRenderer->setTileWidthPercentage(atof(*argv));
if (!(tileRenderer->getTileWidthPercentage() > 0)) {
SkDELETE(tileRenderer);
SkDebugf("--tile must be given a width percentage > 0\n");
exit(-1);
}
} else {
tileRenderer->setTileWidth(atoi(*argv));
if (!(tileRenderer->getTileWidth() > 0)) {
SkDELETE(tileRenderer);
SkDebugf("--tile must be given a width > 0\n");
exit(-1);
}
}
} else {
SkDELETE(tileRenderer);
SkDebugf("Missing width for --tile\n");
usage(argv0);
exit(-1);
}
++argv;
if (argv < stop) {
if (is_percentage(*argv)) {
tileRenderer->setTileHeightPercentage(atof(*argv));
if (!(tileRenderer->getTileHeightPercentage() > 0)) {
SkDELETE(tileRenderer);
SkDebugf(
"--tile must be given a height percentage > 0\n");
exit(-1);
}
} else {
tileRenderer->setTileHeight(atoi(*argv));
if (!(tileRenderer->getTileHeight() > 0)) {
SkDELETE(tileRenderer);
SkDebugf("--tile must be given a height > 0\n");
exit(-1);
}
}
} else {
SkDELETE(tileRenderer);
SkDebugf("Missing height for --tile\n");
usage(argv0);
exit(-1);
}
renderer = tileRenderer;
} else if ((0 == strcmp(*argv, "-h")) || (0 == strcmp(*argv, "--help"))) {
SkDELETE(renderer);
usage(argv0);
exit(-1);
} else {
inputs->push_back(SkString(*argv));
}
}
if (inputs->count() < 2) {
SkDELETE(renderer);
usage(argv0);
exit(-1);
}
if (NULL == renderer) {
renderer = SkNEW(sk_tools::SimplePictureRenderer);
}
}
int main(int argc, char* const argv[]) {
SkTArray<SkString> inputs;
sk_tools::PictureRenderer* renderer = NULL;
parse_commandline(argc, argv, &inputs, renderer);
SkString outputDir = inputs[inputs.count() - 1];
SkASSERT(renderer);
for (int i = 0; i < inputs.count() - 1; i ++) {
process_input(inputs[i], outputDir, *renderer);
}
SkDELETE(renderer);
}
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