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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 "BenchTimer.h"
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkOSFile.h"
#include "SkPicture.h"
#include "SkStream.h"
#include "SkTArray.h"
#include "picture_utils.h"
const int DEFAULT_REPEATS = 100;
const int DEFAULT_TILE_WIDTH = 256;
const int DEFAULT_TILE_HEIGHT = 256;
struct Options;
static void run_simple_benchmark(SkPicture* picture, const SkBitmap&,
const Options&);
struct Options {
int fRepeats;
void (*fBenchmark) (SkPicture*, const SkBitmap& bitmap,
const Options& options);
int fTileWidth;
int fTileHeight;
Options() : fRepeats(DEFAULT_REPEATS), fBenchmark(run_simple_benchmark),
fTileWidth(DEFAULT_TILE_WIDTH), fTileHeight(DEFAULT_TILE_HEIGHT){}
};
static void usage(const char* argv0) {
SkDebugf("SkPicture benchmarking tool\n");
SkDebugf("\n"
"Usage: \n"
" %s <inputDir>\n"
" [--repeat] [--tile width height]"
, argv0);
SkDebugf("\n\n");
SkDebugf(
" inputDir: directory to read the serialized SkPicture files."
" Files are expected to have the .skp extension.\n\n");
SkDebugf(
" --repeat : "
"Set the number of times to repeat each test."
" Default is %i.\n", DEFAULT_REPEATS);
SkDebugf(
" --tile width height: "
"Set to use the tiling size and specify the dimensions of each tile."
" Default is to not use tiling\n");
}
static void run_simple_benchmark(SkPicture* picture,
const SkBitmap& bitmap,
const Options& options) {
SkCanvas canvas(bitmap);
// We throw this away to remove first time effects (such as paging in this
// program)
canvas.drawPicture(*picture);
BenchTimer timer = BenchTimer(NULL);
timer.start();
for (int i = 0; i < options.fRepeats; ++i) {
canvas.drawPicture(*picture);
}
timer.end();
printf("simple: cmsecs = %6.2f\n", timer.fWall / options.fRepeats);
}
struct TileInfo {
SkBitmap* fBitmap;
SkCanvas* fCanvas;
};
static void setup_single_tile(const SkBitmap& bitmap, const Options& options,
SkTArray<TileInfo>* tiles,
int tile_x_start, int tile_y_start) {
TileInfo& tile = tiles->push_back();
tile.fBitmap = new SkBitmap();
SkIRect rect = SkIRect::MakeXYWH(tile_x_start, tile_y_start,
options.fTileWidth,
options.fTileHeight);
bitmap.extractSubset(tile.fBitmap, rect);
tile.fCanvas = new SkCanvas(*(tile.fBitmap));
tile.fCanvas->translate(-tile_x_start, -tile_y_start);
}
static void setup_tiles(SkPicture* picture, const SkBitmap& bitmap,
const Options& options, SkTArray<TileInfo>* tiles) {
for (int tile_y_start = 0; tile_y_start < picture->height();
tile_y_start += options.fTileHeight) {
for (int tile_x_start = 0; tile_x_start < picture->width();
tile_x_start += options.fTileWidth) {
setup_single_tile(bitmap, options, tiles, tile_x_start,
tile_y_start);
}
}
}
static void run_tile_benchmark(SkPicture* picture, const SkBitmap& bitmap,
const Options& options) {
SkTArray<TileInfo> tiles;
setup_tiles(picture, bitmap, options, &tiles);
// We throw this away to remove first time effects (such as paging in this
// program)
for (int j = 0; j < tiles.count(); ++j) {
tiles[j].fCanvas->drawPicture(*picture);
}
BenchTimer timer = BenchTimer(NULL);
timer.start();
for (int i = 0; i < options.fRepeats; ++i) {
for (int j = 0; j < tiles.count(); ++j) {
tiles[j].fCanvas->drawPicture(*picture);
}
}
timer.end();
for (int i = 0; i < tiles.count(); ++i) {
delete tiles[i].fCanvas;
delete tiles[i].fBitmap;
}
printf("tile%ix%i: cmsecs = %6.2f\n", options.fTileWidth,
options.fTileHeight, timer.fWall / options.fRepeats);
}
static void run_benchmark(const char* inputDir,
const SkString& inputFilename,
const Options& options) {
SkFILEStream inputStream;
SkString inputPath;
sk_tools::make_filepath(&inputPath, inputDir, inputFilename);
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());
printf("running bench [%i %i] %s ", picture.width(), picture.height(),
inputFilename.c_str());
options.fBenchmark(&picture, bitmap, options);
}
static void parse_commandline(int argc, char* const argv[],
const char** inputDir, Options* options) {
const char* argv0 = argv[0];
char* const* stop = argv + argc;
for (++argv; argv < stop; ++argv) {
if (0 == strcmp(*argv, "--repeat")) {
++argv;
if (argv < stop) {
options->fRepeats = atoi(*argv);
if (options->fRepeats < 1) {
SkDebugf("--repeat must be given a value > 0\n");
exit(-1);
}
} else {
SkDebugf("Missing arg for --repeat\n");
usage(argv0);
exit(-1);
}
} else if (0 == strcmp(*argv, "--tile")) {
options->fBenchmark = run_tile_benchmark;
++argv;
if (argv < stop) {
options->fTileWidth = atoi(*argv);
if (options->fTileWidth < 1) {
SkDebugf("--tile must be given a width with a value > 0\n");
exit(-1);
}
} else {
SkDebugf("Missing width for --tile\n");
usage(argv0);
exit(-1);
}
++argv;
if (argv < stop) {
options->fTileHeight = atoi(*argv);
if (options->fTileHeight < 1) {
SkDebugf("--tile must be given a height with a value > 0"
"\n");
exit(-1);
}
} else {
SkDebugf("Missing height for --tile\n");
usage(argv0);\
exit(-1);
}
} else if (0 == strcmp(*argv, "--help") || 0 == strcmp(*argv, "-h")) {
usage(argv0);
exit(0);
} else {
if (NULL == *inputDir) {
*inputDir = *argv;
} else {
usage(argv0);
exit(-1);
}
}
}
if (NULL == *inputDir) {
usage(argv0);
exit(-1);
}
}
int main(int argc, char* const argv[]) {
const char* inputDir = NULL;
Options options;
parse_commandline(argc, argv, &inputDir, &options);
SkOSFile::Iter iter(inputDir, "skp");
SkString inputFilename;
while(iter.next(&inputFilename)) {
run_benchmark(inputDir, inputFilename, options);
}
}
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