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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"
#include "SkRecord.h"
#include "SkRecordOpts.h"
#include "SkRecorder.h"
#include "SkRecords.h"
#include "SkXfermode.h"
static const int W = 1920, H = 1080;
// If the command we're reading is a U, set ptr to it, otherwise set it to NULL.
template <typename U>
struct ReadAs {
explicit ReadAs(const U** ptr) : ptr(ptr), type(SkRecords::Type(~0)) {}
const U** ptr;
SkRecords::Type type;
void operator()(const U& r) { *ptr = &r; type = U::kType; }
template <typename T>
void operator()(const T&) { *ptr = NULL; type = U::kType; }
};
// Assert that the ith command in record is of type T, and return it.
template <typename T>
static const T* assert_type(skiatest::Reporter* r, const SkRecord& record, unsigned index) {
const T* ptr = NULL;
ReadAs<T> reader(&ptr);
record.visit(index, reader);
REPORTER_ASSERT(r, T::kType == reader.type);
REPORTER_ASSERT(r, ptr != NULL);
return ptr;
}
DEF_TEST(RecordOpts_Culling, r) {
SkRecord record;
SkRecorder recorder(SkRecorder::kWriteOnly_Mode, &record, W, H);
recorder.drawRect(SkRect::MakeWH(1000, 10000), SkPaint());
recorder.pushCull(SkRect::MakeWH(100, 100));
recorder.drawRect(SkRect::MakeWH(10, 10), SkPaint());
recorder.drawRect(SkRect::MakeWH(30, 30), SkPaint());
recorder.pushCull(SkRect::MakeWH(5, 5));
recorder.drawRect(SkRect::MakeWH(1, 1), SkPaint());
recorder.popCull();
recorder.popCull();
SkRecordAnnotateCullingPairs(&record);
REPORTER_ASSERT(r, 6 == assert_type<SkRecords::PairedPushCull>(r, record, 1)->skip);
REPORTER_ASSERT(r, 2 == assert_type<SkRecords::PairedPushCull>(r, record, 4)->skip);
}
static void draw_pos_text(SkCanvas* canvas, const char* text, bool constantY) {
const size_t len = strlen(text);
SkAutoTMalloc<SkPoint> pos(len);
for (size_t i = 0; i < len; i++) {
pos[i].fX = (SkScalar)i;
pos[i].fY = constantY ? SK_Scalar1 : (SkScalar)i;
}
canvas->drawPosText(text, len, pos, SkPaint());
}
DEF_TEST(RecordOpts_StrengthReduction, r) {
SkRecord record;
SkRecorder recorder(SkRecorder::kWriteOnly_Mode, &record, W, H);
// We can convert a drawPosText into a drawPosTextH when all the Ys are the same.
draw_pos_text(&recorder, "This will be reduced to drawPosTextH.", true);
draw_pos_text(&recorder, "This cannot be reduced to drawPosTextH.", false);
SkRecordReduceDrawPosTextStrength(&record);
assert_type<SkRecords::DrawPosTextH>(r, record, 0);
assert_type<SkRecords::DrawPosText>(r, record, 1);
}
DEF_TEST(RecordOpts_TextBounding, r) {
SkRecord record;
SkRecorder recorder(SkRecorder::kWriteOnly_Mode, &record, W, H);
// First, get a drawPosTextH. Here's a handy way. Its text size will be the default (12).
draw_pos_text(&recorder, "This will be reduced to drawPosTextH.", true);
SkRecordReduceDrawPosTextStrength(&record);
const SkRecords::DrawPosTextH* original =
assert_type<SkRecords::DrawPosTextH>(r, record, 0);
// This should wrap the original DrawPosTextH with minY and maxY.
SkRecordBoundDrawPosTextH(&record);
const SkRecords::BoundedDrawPosTextH* bounded =
assert_type<SkRecords::BoundedDrawPosTextH>(r, record, 0);
const SkPaint defaults;
REPORTER_ASSERT(r, bounded->base == original);
REPORTER_ASSERT(r, bounded->minY <= SK_Scalar1 - defaults.getTextSize());
REPORTER_ASSERT(r, bounded->maxY >= SK_Scalar1 + defaults.getTextSize());
}
DEF_TEST(RecordOpts_SingleNoopSaveRestore, r) {
SkRecord record;
SkRecorder recorder(SkRecorder::kWriteOnly_Mode, &record, W, H);
recorder.save();
recorder.clipRect(SkRect::MakeWH(200, 200));
recorder.restore();
SkRecordNoopSaveRestores(&record);
for (unsigned i = 0; i < 3; i++) {
assert_type<SkRecords::NoOp>(r, record, i);
}
}
DEF_TEST(RecordOpts_NoopSaveRestores, r) {
SkRecord record;
SkRecorder recorder(SkRecorder::kWriteOnly_Mode, &record, W, H);
// The second pass will clean up this pair after the first pass noops all the innards.
recorder.save();
// A simple pointless pair of save/restore.
recorder.save();
recorder.restore();
// As long as we don't draw in there, everything is a noop.
recorder.save();
recorder.clipRect(SkRect::MakeWH(200, 200));
recorder.clipRect(SkRect::MakeWH(100, 100));
recorder.restore();
recorder.restore();
// These will be kept (though some future optimization might noop the save and restore).
recorder.save();
recorder.drawRect(SkRect::MakeWH(200, 200), SkPaint());
recorder.restore();
SkRecordNoopSaveRestores(&record);
for (unsigned index = 0; index < 8; index++) {
assert_type<SkRecords::NoOp>(r, record, index);
}
assert_type<SkRecords::Save>(r, record, 8);
assert_type<SkRecords::DrawRect>(r, record, 9);
assert_type<SkRecords::Restore>(r, record, 10);
}
static void assert_savelayer_restore(skiatest::Reporter* r,
SkRecord* record,
unsigned i,
bool shouldBeNoOped) {
SkRecordNoopSaveLayerDrawRestores(record);
if (shouldBeNoOped) {
assert_type<SkRecords::NoOp>(r, *record, i);
assert_type<SkRecords::NoOp>(r, *record, i+2);
} else {
assert_type<SkRecords::SaveLayer>(r, *record, i);
assert_type<SkRecords::Restore>(r, *record, i+2);
}
}
DEF_TEST(RecordOpts_NoopSaveLayerDrawRestore, r) {
SkRecord record;
SkRecorder recorder(SkRecorder::kWriteOnly_Mode, &record, W, H);
SkRect bounds = SkRect::MakeWH(100, 200);
SkRect draw = SkRect::MakeWH(50, 60);
SkPaint goodLayerPaint, badLayerPaint, worseLayerPaint;
goodLayerPaint.setColor(0x03000000); // Only alpha.
badLayerPaint.setColor( 0x03040506); // Not only alpha.
worseLayerPaint.setXfermodeMode(SkXfermode::kDstIn_Mode); // Any effect will do.
SkPaint goodDrawPaint, badDrawPaint;
goodDrawPaint.setColor(0xFF020202); // Opaque.
badDrawPaint.setColor( 0x0F020202); // Not opaque.
// No change: optimization can't handle bounds.
recorder.saveLayer(&bounds, NULL);
recorder.drawRect(draw, goodDrawPaint);
recorder.restore();
assert_savelayer_restore(r, &record, 0, false);
// SaveLayer/Restore removed: no bounds + no paint = no point.
recorder.saveLayer(NULL, NULL);
recorder.drawRect(draw, goodDrawPaint);
recorder.restore();
assert_savelayer_restore(r, &record, 3, true);
// TODO(mtklein): test case with null draw paint
// No change: layer paint isn't alpha-only.
recorder.saveLayer(NULL, &badLayerPaint);
recorder.drawRect(draw, goodDrawPaint);
recorder.restore();
assert_savelayer_restore(r, &record, 6, false);
// No change: layer paint has an effect.
recorder.saveLayer(NULL, &worseLayerPaint);
recorder.drawRect(draw, goodDrawPaint);
recorder.restore();
assert_savelayer_restore(r, &record, 9, false);
// No change: draw paint isn't opaque.
recorder.saveLayer(NULL, &goodLayerPaint);
recorder.drawRect(draw, badDrawPaint);
recorder.restore();
assert_savelayer_restore(r, &record, 12, false);
// SaveLayer/Restore removed: we can fold in the alpha!
recorder.saveLayer(NULL, &goodLayerPaint);
recorder.drawRect(draw, goodDrawPaint);
recorder.restore();
assert_savelayer_restore(r, &record, 15, true);
const SkRecords::DrawRect* drawRect = assert_type<SkRecords::DrawRect>(r, record, 16);
REPORTER_ASSERT(r, drawRect != NULL);
REPORTER_ASSERT(r, drawRect->paint.getColor() == 0x03020202);
}
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