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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 "SkDebugCanvas.h"
#include "SkRecord.h"
#include "SkRecordOpts.h"
#include "SkRecordDraw.h"
#include "SkRecorder.h"
#include "SkRecords.h"
static const int W = 1920, H = 1080;
static void draw_pos_text_h(SkCanvas* canvas, const char* text, SkScalar y) {
const size_t len = strlen(text);
SkAutoTMalloc<SkScalar> xpos(len);
for (size_t i = 0; i < len; i++) {
xpos[i] = (SkScalar)i;
}
canvas->drawPosTextH(text, len, xpos, y, SkPaint());
}
// Rerecord into another SkRecord using full SkCanvas semantics,
// tracking clips and allowing SkRecordDraw's quickReject() calls to work.
static void record_clipped(const SkRecord& record, SkRect clip, SkRecord* clipped) {
SkRecorder recorder(SkRecorder::kReadWrite_Mode, clipped, W, H);
recorder.clipRect(clip);
SkRecordDraw(record, &recorder);
}
DEF_TEST(RecordDraw_PosTextHQuickReject, r) {
SkRecord record;
SkRecorder recorder(SkRecorder::kWriteOnly_Mode, &record, W, H);
draw_pos_text_h(&recorder, "This will draw.", 20);
draw_pos_text_h(&recorder, "This won't.", 5000);
SkRecordBoundDrawPosTextH(&record);
SkRecord clipped;
record_clipped(record, SkRect::MakeLTRB(20, 20, 200, 200), &clipped);
// clipRect and the first drawPosTextH.
REPORTER_ASSERT(r, 2 == clipped.count());
}
DEF_TEST(RecordDraw_Culling, r) {
// Record these 7 drawing commands verbatim.
SkRecord record;
SkRecorder recorder(SkRecorder::kWriteOnly_Mode, &record, W, H);
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();
// Take a pass over to match up pushCulls and popCulls.
SkRecordAnnotateCullingPairs(&record);
// This clip intersects the outer cull, but allows us to quick reject the inner one.
SkRecord clipped;
record_clipped(record, SkRect::MakeLTRB(20, 20, 200, 200), &clipped);
// We'll keep the clipRect call from above, and the outer two drawRects, and the push/pop pair.
// If culling weren't working, we'd see 8 commands recorded here.
REPORTER_ASSERT(r, 5 == clipped.count());
}
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