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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SKPBench.h"
#include "SkCommandLineFlags.h"
#include "SkMultiPictureDraw.h"
#include "SkSurface.h"
#if SK_SUPPORT_GPU
#include "GrContext.h"
#endif
// These CPU tile sizes are not good per se, but they are similar to what Chrome uses.
DEFINE_int32(CPUbenchTileW, 256, "Tile width used for CPU SKP playback.");
DEFINE_int32(CPUbenchTileH, 256, "Tile height used for CPU SKP playback.");
DEFINE_int32(GPUbenchTileW, 1600, "Tile width used for GPU SKP playback.");
DEFINE_int32(GPUbenchTileH, 512, "Tile height used for GPU SKP playback.");
SKPBench::SKPBench(const char* name, const SkPicture* pic, const SkIRect& clip, SkScalar scale,
bool useMultiPictureDraw, bool doLooping)
: fPic(SkRef(pic))
, fClip(clip)
, fScale(scale)
, fName(name)
, fUseMultiPictureDraw(useMultiPictureDraw)
, fDoLooping(doLooping) {
fUniqueName.printf("%s_%.2g", name, scale); // Scale makes this unqiue for perf.skia.org traces.
if (useMultiPictureDraw) {
fUniqueName.append("_mpd");
}
}
SKPBench::~SKPBench() {
for (int i = 0; i < fSurfaces.count(); ++i) {
fSurfaces[i]->unref();
}
}
const char* SKPBench::onGetName() {
return fName.c_str();
}
const char* SKPBench::onGetUniqueName() {
return fUniqueName.c_str();
}
void SKPBench::onPerCanvasPreDraw(SkCanvas* canvas) {
SkIRect bounds = canvas->getDeviceClipBounds();
SkAssertResult(!bounds.isEmpty());
const bool gpu = canvas->getGrContext() != nullptr;
int tileW = gpu ? FLAGS_GPUbenchTileW : FLAGS_CPUbenchTileW,
tileH = gpu ? FLAGS_GPUbenchTileH : FLAGS_CPUbenchTileH;
tileW = SkTMin(tileW, bounds.width());
tileH = SkTMin(tileH, bounds.height());
int xTiles = SkScalarCeilToInt(bounds.width() / SkIntToScalar(tileW));
int yTiles = SkScalarCeilToInt(bounds.height() / SkIntToScalar(tileH));
fSurfaces.setReserve(xTiles * yTiles);
fTileRects.setReserve(xTiles * yTiles);
SkImageInfo ii = canvas->imageInfo().makeWH(tileW, tileH);
for (int y = bounds.fTop; y < bounds.fBottom; y += tileH) {
for (int x = bounds.fLeft; x < bounds.fRight; x += tileW) {
const SkIRect tileRect = SkIRect::MakeXYWH(x, y, tileW, tileH);
*fTileRects.append() = tileRect;
*fSurfaces.push() = canvas->makeSurface(ii).release();
// Never want the contents of a tile to include stuff the parent
// canvas clips out
SkRect clip = SkRect::Make(bounds);
clip.offset(-SkIntToScalar(tileRect.fLeft), -SkIntToScalar(tileRect.fTop));
fSurfaces.top()->getCanvas()->clipRect(clip);
fSurfaces.top()->getCanvas()->setMatrix(canvas->getTotalMatrix());
fSurfaces.top()->getCanvas()->scale(fScale, fScale);
}
}
}
void SKPBench::onPerCanvasPostDraw(SkCanvas* canvas) {
// Draw the last set of tiles into the master canvas in case we're
// saving the images
for (int i = 0; i < fTileRects.count(); ++i) {
sk_sp<SkImage> image(fSurfaces[i]->makeImageSnapshot());
canvas->drawImage(image,
SkIntToScalar(fTileRects[i].fLeft), SkIntToScalar(fTileRects[i].fTop));
SkSafeSetNull(fSurfaces[i]);
}
fSurfaces.rewind();
fTileRects.rewind();
}
bool SKPBench::isSuitableFor(Backend backend) {
return backend != kNonRendering_Backend;
}
SkIPoint SKPBench::onGetSize() {
return SkIPoint::Make(fClip.width(), fClip.height());
}
void SKPBench::onDraw(int loops, SkCanvas* canvas) {
SkASSERT(fDoLooping || 1 == loops);
while (1) {
if (fUseMultiPictureDraw) {
this->drawMPDPicture();
} else {
this->drawPicture();
}
if (0 == --loops) {
break;
}
#if SK_SUPPORT_GPU
// Ensure the GrContext doesn't combine ops across draw loops.
if (GrContext* context = canvas->getGrContext()) {
context->flush();
}
#endif
}
}
void SKPBench::drawMPDPicture() {
SkMultiPictureDraw mpd;
for (int j = 0; j < fTileRects.count(); ++j) {
SkMatrix trans;
trans.setTranslate(-fTileRects[j].fLeft/fScale,
-fTileRects[j].fTop/fScale);
mpd.add(fSurfaces[j]->getCanvas(), fPic.get(), &trans);
}
mpd.draw();
for (int j = 0; j < fTileRects.count(); ++j) {
fSurfaces[j]->getCanvas()->flush();
}
}
void SKPBench::drawPicture() {
for (int j = 0; j < fTileRects.count(); ++j) {
const SkMatrix trans = SkMatrix::MakeTrans(-fTileRects[j].fLeft / fScale,
-fTileRects[j].fTop / fScale);
fSurfaces[j]->getCanvas()->drawPicture(fPic.get(), &trans, nullptr);
}
for (int j = 0; j < fTileRects.count(); ++j) {
fSurfaces[j]->getCanvas()->flush();
}
}
#if SK_SUPPORT_GPU
#include "GrGpu.h"
static void draw_pic_for_stats(SkCanvas* canvas, GrContext* context, const SkPicture* picture,
SkTArray<SkString>* keys, SkTArray<double>* values,
const char* tag) {
context->resetGpuStats();
canvas->drawPicture(picture);
canvas->flush();
int offset = keys->count();
context->dumpGpuStatsKeyValuePairs(keys, values);
context->dumpCacheStatsKeyValuePairs(keys, values);
// append tag, but only to new tags
for (int i = offset; i < keys->count(); i++, offset++) {
(*keys)[i].appendf("_%s", tag);
}
}
#endif
void SKPBench::getGpuStats(SkCanvas* canvas, SkTArray<SkString>* keys, SkTArray<double>* values) {
#if SK_SUPPORT_GPU
// we do a special single draw and then dump the key / value pairs
GrContext* context = canvas->getGrContext();
if (!context) {
return;
}
// TODO refactor this out if we want to test other subclasses of skpbench
context->flush();
context->freeGpuResources();
context->resetContext();
context->getGpu()->resetShaderCacheForTesting();
draw_pic_for_stats(canvas, context, fPic.get(), keys, values, "first_frame");
// draw second frame
draw_pic_for_stats(canvas, context, fPic.get(), keys, values, "second_frame");
#endif
}
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