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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 "Test.h"
#if SK_SUPPORT_GPU
#include "GrContext.h"
#include "GrLayerCache.h"
#include "GrRecordReplaceDraw.h"
#include "RecordTestUtils.h"
#include "SkBBHFactory.h"
#include "SkPictureRecorder.h"
#include "SkRecordDraw.h"
#include "SkRecorder.h"
#include "SkUtils.h"
static const int kWidth = 100;
static const int kHeight = 100;
class JustOneDraw : public SkPicture::AbortCallback {
public:
JustOneDraw() : fCalls(0) {}
bool abort() override { return fCalls++ > 0; }
private:
int fCalls;
};
// Make sure the abort callback works
DEF_TEST(RecordReplaceDraw_Abort, r) {
SkAutoTUnref<const SkPicture> pic;
{
// Record two commands.
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(SkIntToScalar(kWidth), SkIntToScalar(kHeight));
canvas->drawRect(SkRect::MakeWH(SkIntToScalar(kWidth), SkIntToScalar(kHeight)), SkPaint());
canvas->clipRect(SkRect::MakeWH(SkIntToScalar(kWidth), SkIntToScalar(kHeight)));
pic.reset(recorder.endRecording());
}
SkRecord rerecord;
SkRecorder canvas(&rerecord, kWidth, kHeight);
JustOneDraw callback;
GrRecordReplaceDraw(pic, &canvas, nullptr, SkMatrix::I(), &callback);
switch (rerecord.count()) {
case 3:
assert_type<SkRecords::Save>(r, rerecord, 0);
assert_type<SkRecords::DrawRect>(r, rerecord, 1);
assert_type<SkRecords::Restore>(r, rerecord, 2);
break;
case 1:
assert_type<SkRecords::DrawRect>(r, rerecord, 0);
break;
default:
REPORTER_ASSERT(r, false);
}
}
// Make sure GrRecordReplaceDraw balances unbalanced saves
DEF_TEST(RecordReplaceDraw_Unbalanced, r) {
SkAutoTUnref<const SkPicture> pic;
{
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(SkIntToScalar(kWidth), SkIntToScalar(kHeight));
// We won't balance this, but GrRecordReplaceDraw will for us.
canvas->save();
canvas->scale(2, 2);
pic.reset(recorder.endRecording());
}
SkRecord rerecord;
SkRecorder canvas(&rerecord, kWidth, kHeight);
GrRecordReplaceDraw(pic, &canvas, nullptr, SkMatrix::I(), nullptr/*callback*/);
// ensure rerecord is balanced (in this case by checking that the count is odd)
REPORTER_ASSERT(r, (rerecord.count() & 1) == 1);
}
// Test out the layer replacement functionality with and w/o a BBH
void test_replacements(skiatest::Reporter* r, GrContext* context, bool doReplace) {
SkAutoTUnref<const SkPicture> pic;
{
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(SkIntToScalar(kWidth), SkIntToScalar(kHeight));
SkPaint paint;
canvas->saveLayer(nullptr, &paint);
canvas->clear(SK_ColorRED);
canvas->restore();
canvas->drawRect(SkRect::MakeWH(SkIntToScalar(kWidth / 2), SkIntToScalar(kHeight / 2)),
SkPaint());
pic.reset(recorder.endRecording());
}
SkAutoTUnref<GrTexture> texture;
SkPaint paint;
GrLayerCache* layerCache = context->getLayerCache();
if (doReplace) {
int key[1] = { 0 };
GrCachedLayer* layer = layerCache->findLayerOrCreate(pic->uniqueID(), 0, 2,
SkIRect::MakeWH(kWidth, kHeight),
SkIRect::MakeWH(kWidth, kHeight),
SkMatrix::I(), key, 1, &paint);
GrSurfaceDesc desc;
desc.fConfig = kSkia8888_GrPixelConfig;
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fWidth = kWidth;
desc.fHeight = kHeight;
desc.fSampleCnt = 0;
texture.reset(context->textureProvider()->createTexture(desc, false, nullptr, 0));
layer->setTexture(texture, SkIRect::MakeWH(kWidth, kHeight), false);
}
SkRecord rerecord;
SkRecorder canvas(&rerecord, kWidth, kHeight);
GrRecordReplaceDraw(pic, &canvas, layerCache, SkMatrix::I(), nullptr/*callback*/);
int numLayers = count_instances_of_type<SkRecords::SaveLayer>(rerecord);
if (doReplace) {
REPORTER_ASSERT(r, 0 == numLayers);
} else {
REPORTER_ASSERT(r, 1 == numLayers);
}
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(RecordReplaceDraw, r, context) {
test_replacements(r, context, false);
test_replacements(r, context, true);
}
#endif
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