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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 "Test.h"
#include "SkBitmap.h"
#include "SkDeferredCanvas.h"
#include "SkShader.h"
static const int gWidth = 2;
static const int gHeight = 2;
static void create(SkBitmap* bm, SkBitmap::Config config, SkColor color) {
bm->setConfig(config, gWidth, gHeight);
bm->allocPixels();
bm->eraseColor(color);
}
static void TestDeferredCanvasBitmapAccess(skiatest::Reporter* reporter) {
SkBitmap store;
create(&store, SkBitmap::kARGB_8888_Config, 0xFFFFFFFF);
SkDevice device(store);
SkDeferredCanvas canvas(&device);
canvas.clear(0x00000000);
SkAutoLockPixels alp(store);
REPORTER_ASSERT(reporter, store.getColor(0,0) == 0xFFFFFFFF); //verify that clear was deferred
SkBitmap accessed = canvas.getDevice()->accessBitmap(false);
REPORTER_ASSERT(reporter, store.getColor(0,0) == 0x00000000); //verify that clear was executed
REPORTER_ASSERT(reporter, accessed.pixelRef() == store.pixelRef());
}
static void TestDeferredCanvasFlush(skiatest::Reporter* reporter) {
SkBitmap store;
create(&store, SkBitmap::kARGB_8888_Config, 0xFFFFFFFF);
SkDevice device(store);
SkDeferredCanvas canvas(&device);
canvas.clear(0x00000000);
SkAutoLockPixels alp(store);
REPORTER_ASSERT(reporter, store.getColor(0,0) == 0xFFFFFFFF); //verify that clear was deferred
canvas.flush();
REPORTER_ASSERT(reporter, store.getColor(0,0) == 0x00000000); //verify that clear was executed
}
static void TestDeferredCanvasFreshFrame(skiatest::Reporter* reporter) {
SkBitmap store;
SkRect fullRect;
fullRect.setXYWH(SkIntToScalar(0), SkIntToScalar(0), SkIntToScalar(gWidth),
SkIntToScalar(gHeight));
SkRect partialRect;
partialRect.setXYWH(SkIntToScalar(0), SkIntToScalar(0),
SkIntToScalar(1), SkIntToScalar(1));
create(&store, SkBitmap::kARGB_8888_Config, 0xFFFFFFFF);
SkDevice device(store);
SkDeferredCanvas canvas(&device);
// verify that frame is intially fresh
REPORTER_ASSERT(reporter, canvas.getDeferredDevice()->isFreshFrame());
// no clearing op since last call to isFreshFrame -> not fresh
REPORTER_ASSERT(reporter, !canvas.getDeferredDevice()->isFreshFrame());
// Verify that clear triggers a fresh frame
canvas.clear(0x00000000);
REPORTER_ASSERT(reporter, canvas.getDeferredDevice()->isFreshFrame());
// Verify that clear with saved state triggers a fresh frame
canvas.save(SkCanvas::kMatrixClip_SaveFlag);
canvas.clear(0x00000000);
canvas.restore();
REPORTER_ASSERT(reporter, canvas.getDeferredDevice()->isFreshFrame());
// Verify that clear within a layer does NOT trigger a fresh frame
canvas.saveLayer(NULL, NULL, SkCanvas::kARGB_ClipLayer_SaveFlag);
canvas.clear(0x00000000);
canvas.restore();
REPORTER_ASSERT(reporter, !canvas.getDeferredDevice()->isFreshFrame());
// Verify that a clear with clipping triggers a fresh frame
// (clear is not affected by clipping)
canvas.save(SkCanvas::kMatrixClip_SaveFlag);
canvas.clipRect(partialRect, SkRegion::kIntersect_Op, false);
canvas.clear(0x00000000);
canvas.restore();
REPORTER_ASSERT(reporter, canvas.getDeferredDevice()->isFreshFrame());
// Verify that full frame rects with different forms of opaque paint
// trigger frames to be marked as fresh
{
SkPaint paint;
paint.setStyle( SkPaint::kFill_Style );
paint.setAlpha( 255 );
canvas.drawRect(fullRect, paint);
REPORTER_ASSERT(reporter, canvas.getDeferredDevice()->isFreshFrame());
}
{
SkPaint paint;
paint.setStyle( SkPaint::kFill_Style );
SkBitmap bmp;
create(&bmp, SkBitmap::kARGB_8888_Config, 0xFFFFFFFF);
bmp.setIsOpaque(true);
SkShader* shader = SkShader::CreateBitmapShader(bmp,
SkShader::kClamp_TileMode, SkShader::kClamp_TileMode);
paint.setShader(shader)->unref();
canvas.drawRect(fullRect, paint);
REPORTER_ASSERT(reporter, canvas.getDeferredDevice()->isFreshFrame());
}
// Verify that full frame rects with different forms of non-opaque paint
// do not trigger frames to be marked as fresh
{
SkPaint paint;
paint.setStyle( SkPaint::kFill_Style );
paint.setAlpha( 254 );
canvas.drawRect(fullRect, paint);
REPORTER_ASSERT(reporter, !canvas.getDeferredDevice()->isFreshFrame());
}
{
SkPaint paint;
paint.setStyle( SkPaint::kFill_Style );
SkBitmap bmp;
create(&bmp, SkBitmap::kARGB_8888_Config, 0xFFFFFFFF);
bmp.setIsOpaque(false);
SkShader* shader = SkShader::CreateBitmapShader(bmp,
SkShader::kClamp_TileMode, SkShader::kClamp_TileMode);
paint.setShader(shader)->unref();
canvas.drawRect(fullRect, paint);
REPORTER_ASSERT(reporter, !canvas.getDeferredDevice()->isFreshFrame());
}
// Verify that incomplete coverage does not trigger a fresh frame
{
SkPaint paint;
paint.setStyle(SkPaint::kFill_Style);
paint.setAlpha(255);
canvas.drawRect(partialRect, paint);
REPORTER_ASSERT(reporter, !canvas.getDeferredDevice()->isFreshFrame());
}
// Verify that incomplete coverage due to clipping does not trigger a fresh
// frame
{
canvas.save(SkCanvas::kMatrixClip_SaveFlag);
canvas.clipRect(partialRect, SkRegion::kIntersect_Op, false);
SkPaint paint;
paint.setStyle(SkPaint::kFill_Style);
paint.setAlpha(255);
canvas.drawRect(fullRect, paint);
REPORTER_ASSERT(reporter, !canvas.getDeferredDevice()->isFreshFrame());
}
// Verify that stroked rect does not trigger a fresh frame
{
SkPaint paint;
paint.setStyle( SkPaint::kStroke_Style );
paint.setAlpha( 255 );
canvas.drawRect(fullRect, paint);
REPORTER_ASSERT(reporter, !canvas.getDeferredDevice()->isFreshFrame());
}
// Verify kSrcMode triggers a fresh frame even with transparent color
{
SkPaint paint;
paint.setStyle( SkPaint::kFill_Style );
paint.setAlpha( 100 );
paint.setXfermodeMode(SkXfermode::kSrc_Mode);
canvas.drawRect(fullRect, paint);
REPORTER_ASSERT(reporter, !canvas.getDeferredDevice()->isFreshFrame());
}
}
static void TestDeferredCanvas(skiatest::Reporter* reporter) {
TestDeferredCanvasBitmapAccess(reporter);
TestDeferredCanvasFlush(reporter);
TestDeferredCanvasFreshFrame(reporter);
}
#include "TestClassDef.h"
DEFINE_TESTCLASS("DeferredCanvas", TestDeferredCanvasClass, TestDeferredCanvas)
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