skia2/tests/DrawBitmapRectTest.cpp

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Automatic update of all copyright notices to reflect new license terms. I have manually examined all of these diffs and restored a few files that seem to require manual adjustment. The following files still need to be modified manually, in a separate CL: android_sample/SampleApp/AndroidManifest.xml android_sample/SampleApp/res/layout/layout.xml android_sample/SampleApp/res/menu/sample.xml android_sample/SampleApp/res/values/strings.xml android_sample/SampleApp/src/com/skia/sampleapp/SampleApp.java android_sample/SampleApp/src/com/skia/sampleapp/SampleView.java experimental/CiCarbonSampleMain.c experimental/CocoaDebugger/main.m experimental/FileReaderApp/main.m experimental/SimpleCocoaApp/main.m experimental/iOSSampleApp/Shared/SkAlertPrompt.h experimental/iOSSampleApp/Shared/SkAlertPrompt.m experimental/iOSSampleApp/SkiOSSampleApp-Base.xcconfig experimental/iOSSampleApp/SkiOSSampleApp-Debug.xcconfig experimental/iOSSampleApp/SkiOSSampleApp-Release.xcconfig gpu/src/android/GrGLDefaultInterface_android.cpp gyp/common.gypi gyp_skia include/ports/SkHarfBuzzFont.h include/views/SkOSWindow_wxwidgets.h make.bat make.py src/opts/memset.arm.S src/opts/memset16_neon.S src/opts/memset32_neon.S src/opts/opts_check_arm.cpp src/ports/SkDebug_brew.cpp src/ports/SkMemory_brew.cpp src/ports/SkOSFile_brew.cpp src/ports/SkXMLParser_empty.cpp src/utils/ios/SkImageDecoder_iOS.mm src/utils/ios/SkOSFile_iOS.mm src/utils/ios/SkStream_NSData.mm tests/FillPathTest.cpp Review URL: http://codereview.appspot.com/4816058 git-svn-id: http://skia.googlecode.com/svn/trunk@1982 2bbb7eff-a529-9590-31e7-b0007b416f81
2011-07-28 14:26:00 +00:00
/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkData.h"
Big Cleanup: SkBitmapFactory, SkLazyPixelRef, SkImageCache Removed SkBitmapFactory since no clients were using it. New cache selection mechanism can simply pass a SkDiscardableMemory::Factory into the SkDiscardablePixelRef if non-default SkDiscardableMemory should be used. Removed BitmapFactoryTest. SkDiscardableMemory::Factory interface. Android will need this functionality in the future inside their BitmapFactory. Removed SkLazyPixelRef, since it's functionality is now subsumed into SkDiscardablePixelRef. Removed LazyPixelRef test. Modified SkDiscardablePixelRef to optionally allow it to use a SkDiscardableMemory::Factory. This tiny change makes it a replacement for SkLazyPixelRef. This functioanlity is also necessary for moving Android over to SkDiscardablePixelRef from SkImageRef in a later CL. Added a test for this. SkDecodingImageGenerator::Install can optionally pass a factory in to SkDiscardablePixelRef. Removed SkImageCache, SkLruImageCache, and SkPurgeableImageCache. This functionality can be handled much more cleanly by SkDiscardableMemory. New SkDiscardableMemoryPool class to replace SkLruImageCache. In a later CL, we will replace SkImageRef_GlobalPool (used by android) as well. This is a concrete implementation of SkDiscardableMemory::Factory. Added a test for this. modified gm/factory.cpp to remove dependnce on SkBitmapFactory + SkLruImageCache. Now uses SkDecodingImageGenerator + SkDiscardablePixelRef + SkDiscardableMemoryPool. SkImageDecoder::Target replaces SkBitmapFactory::Target. The DecodeMemoryToTarget function may disappear in the future. Moved SkLazyCachingPixelRef::DecodeProc replaces SkBitmapFactory::DecodeProc. This is a short term change, since another CL changes SkLazyCachingPixelRef to use SkImageGenerator instead of DecodeProc. Modified DrawBitmapRectTest to use SkDiscardablePixelRef instead of SkLazyPixelRef. tools/LazyDecodeBitmap.cpp now uses SkDecodingImageGenerator + SkDiscardablePixelRef instead of a SkBitmapFactory. bench_pictures uses the Global SkDiscardableMemoryPool instead of a global gLruImageCache. R=reed@google.com, scroggo@google.com Review URL: https://codereview.chromium.org/103033002 git-svn-id: http://skia.googlecode.com/svn/trunk@12515 2bbb7eff-a529-9590-31e7-b0007b416f81
2013-12-05 18:31:42 +00:00
#include "SkDiscardableMemoryPool.h"
#include "SkImageGeneratorPriv.h"
#include "SkMatrixUtils.h"
#include "SkPaint.h"
#include "SkRandom.h"
#include "SkShader.h"
#include "SkSurface.h"
#include "Test.h"
// A BitmapFactory that always fails when asked to return pixels.
Big Cleanup: SkBitmapFactory, SkLazyPixelRef, SkImageCache Removed SkBitmapFactory since no clients were using it. New cache selection mechanism can simply pass a SkDiscardableMemory::Factory into the SkDiscardablePixelRef if non-default SkDiscardableMemory should be used. Removed BitmapFactoryTest. SkDiscardableMemory::Factory interface. Android will need this functionality in the future inside their BitmapFactory. Removed SkLazyPixelRef, since it's functionality is now subsumed into SkDiscardablePixelRef. Removed LazyPixelRef test. Modified SkDiscardablePixelRef to optionally allow it to use a SkDiscardableMemory::Factory. This tiny change makes it a replacement for SkLazyPixelRef. This functioanlity is also necessary for moving Android over to SkDiscardablePixelRef from SkImageRef in a later CL. Added a test for this. SkDecodingImageGenerator::Install can optionally pass a factory in to SkDiscardablePixelRef. Removed SkImageCache, SkLruImageCache, and SkPurgeableImageCache. This functionality can be handled much more cleanly by SkDiscardableMemory. New SkDiscardableMemoryPool class to replace SkLruImageCache. In a later CL, we will replace SkImageRef_GlobalPool (used by android) as well. This is a concrete implementation of SkDiscardableMemory::Factory. Added a test for this. modified gm/factory.cpp to remove dependnce on SkBitmapFactory + SkLruImageCache. Now uses SkDecodingImageGenerator + SkDiscardablePixelRef + SkDiscardableMemoryPool. SkImageDecoder::Target replaces SkBitmapFactory::Target. The DecodeMemoryToTarget function may disappear in the future. Moved SkLazyCachingPixelRef::DecodeProc replaces SkBitmapFactory::DecodeProc. This is a short term change, since another CL changes SkLazyCachingPixelRef to use SkImageGenerator instead of DecodeProc. Modified DrawBitmapRectTest to use SkDiscardablePixelRef instead of SkLazyPixelRef. tools/LazyDecodeBitmap.cpp now uses SkDecodingImageGenerator + SkDiscardablePixelRef instead of a SkBitmapFactory. bench_pictures uses the Global SkDiscardableMemoryPool instead of a global gLruImageCache. R=reed@google.com, scroggo@google.com Review URL: https://codereview.chromium.org/103033002 git-svn-id: http://skia.googlecode.com/svn/trunk@12515 2bbb7eff-a529-9590-31e7-b0007b416f81
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class FailureImageGenerator : public SkImageGenerator {
public:
FailureImageGenerator() { }
virtual ~FailureImageGenerator() { }
virtual bool getInfo(SkImageInfo* info) SK_OVERRIDE {
Big Cleanup: SkBitmapFactory, SkLazyPixelRef, SkImageCache Removed SkBitmapFactory since no clients were using it. New cache selection mechanism can simply pass a SkDiscardableMemory::Factory into the SkDiscardablePixelRef if non-default SkDiscardableMemory should be used. Removed BitmapFactoryTest. SkDiscardableMemory::Factory interface. Android will need this functionality in the future inside their BitmapFactory. Removed SkLazyPixelRef, since it's functionality is now subsumed into SkDiscardablePixelRef. Removed LazyPixelRef test. Modified SkDiscardablePixelRef to optionally allow it to use a SkDiscardableMemory::Factory. This tiny change makes it a replacement for SkLazyPixelRef. This functioanlity is also necessary for moving Android over to SkDiscardablePixelRef from SkImageRef in a later CL. Added a test for this. SkDecodingImageGenerator::Install can optionally pass a factory in to SkDiscardablePixelRef. Removed SkImageCache, SkLruImageCache, and SkPurgeableImageCache. This functionality can be handled much more cleanly by SkDiscardableMemory. New SkDiscardableMemoryPool class to replace SkLruImageCache. In a later CL, we will replace SkImageRef_GlobalPool (used by android) as well. This is a concrete implementation of SkDiscardableMemory::Factory. Added a test for this. modified gm/factory.cpp to remove dependnce on SkBitmapFactory + SkLruImageCache. Now uses SkDecodingImageGenerator + SkDiscardablePixelRef + SkDiscardableMemoryPool. SkImageDecoder::Target replaces SkBitmapFactory::Target. The DecodeMemoryToTarget function may disappear in the future. Moved SkLazyCachingPixelRef::DecodeProc replaces SkBitmapFactory::DecodeProc. This is a short term change, since another CL changes SkLazyCachingPixelRef to use SkImageGenerator instead of DecodeProc. Modified DrawBitmapRectTest to use SkDiscardablePixelRef instead of SkLazyPixelRef. tools/LazyDecodeBitmap.cpp now uses SkDecodingImageGenerator + SkDiscardablePixelRef instead of a SkBitmapFactory. bench_pictures uses the Global SkDiscardableMemoryPool instead of a global gLruImageCache. R=reed@google.com, scroggo@google.com Review URL: https://codereview.chromium.org/103033002 git-svn-id: http://skia.googlecode.com/svn/trunk@12515 2bbb7eff-a529-9590-31e7-b0007b416f81
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info->fWidth = 100;
info->fHeight = 100;
info->fColorType = kN32_SkColorType;
info->fAlphaType = kPremul_SkAlphaType;
Big Cleanup: SkBitmapFactory, SkLazyPixelRef, SkImageCache Removed SkBitmapFactory since no clients were using it. New cache selection mechanism can simply pass a SkDiscardableMemory::Factory into the SkDiscardablePixelRef if non-default SkDiscardableMemory should be used. Removed BitmapFactoryTest. SkDiscardableMemory::Factory interface. Android will need this functionality in the future inside their BitmapFactory. Removed SkLazyPixelRef, since it's functionality is now subsumed into SkDiscardablePixelRef. Removed LazyPixelRef test. Modified SkDiscardablePixelRef to optionally allow it to use a SkDiscardableMemory::Factory. This tiny change makes it a replacement for SkLazyPixelRef. This functioanlity is also necessary for moving Android over to SkDiscardablePixelRef from SkImageRef in a later CL. Added a test for this. SkDecodingImageGenerator::Install can optionally pass a factory in to SkDiscardablePixelRef. Removed SkImageCache, SkLruImageCache, and SkPurgeableImageCache. This functionality can be handled much more cleanly by SkDiscardableMemory. New SkDiscardableMemoryPool class to replace SkLruImageCache. In a later CL, we will replace SkImageRef_GlobalPool (used by android) as well. This is a concrete implementation of SkDiscardableMemory::Factory. Added a test for this. modified gm/factory.cpp to remove dependnce on SkBitmapFactory + SkLruImageCache. Now uses SkDecodingImageGenerator + SkDiscardablePixelRef + SkDiscardableMemoryPool. SkImageDecoder::Target replaces SkBitmapFactory::Target. The DecodeMemoryToTarget function may disappear in the future. Moved SkLazyCachingPixelRef::DecodeProc replaces SkBitmapFactory::DecodeProc. This is a short term change, since another CL changes SkLazyCachingPixelRef to use SkImageGenerator instead of DecodeProc. Modified DrawBitmapRectTest to use SkDiscardablePixelRef instead of SkLazyPixelRef. tools/LazyDecodeBitmap.cpp now uses SkDecodingImageGenerator + SkDiscardablePixelRef instead of a SkBitmapFactory. bench_pictures uses the Global SkDiscardableMemoryPool instead of a global gLruImageCache. R=reed@google.com, scroggo@google.com Review URL: https://codereview.chromium.org/103033002 git-svn-id: http://skia.googlecode.com/svn/trunk@12515 2bbb7eff-a529-9590-31e7-b0007b416f81
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return true;
}
virtual bool getPixels(const SkImageInfo& info,
void* pixels,
size_t rowBytes) SK_OVERRIDE {
// this will deliberately return false if they are asking us
// to decode into pixels.
return false;
}
Big Cleanup: SkBitmapFactory, SkLazyPixelRef, SkImageCache Removed SkBitmapFactory since no clients were using it. New cache selection mechanism can simply pass a SkDiscardableMemory::Factory into the SkDiscardablePixelRef if non-default SkDiscardableMemory should be used. Removed BitmapFactoryTest. SkDiscardableMemory::Factory interface. Android will need this functionality in the future inside their BitmapFactory. Removed SkLazyPixelRef, since it's functionality is now subsumed into SkDiscardablePixelRef. Removed LazyPixelRef test. Modified SkDiscardablePixelRef to optionally allow it to use a SkDiscardableMemory::Factory. This tiny change makes it a replacement for SkLazyPixelRef. This functioanlity is also necessary for moving Android over to SkDiscardablePixelRef from SkImageRef in a later CL. Added a test for this. SkDecodingImageGenerator::Install can optionally pass a factory in to SkDiscardablePixelRef. Removed SkImageCache, SkLruImageCache, and SkPurgeableImageCache. This functionality can be handled much more cleanly by SkDiscardableMemory. New SkDiscardableMemoryPool class to replace SkLruImageCache. In a later CL, we will replace SkImageRef_GlobalPool (used by android) as well. This is a concrete implementation of SkDiscardableMemory::Factory. Added a test for this. modified gm/factory.cpp to remove dependnce on SkBitmapFactory + SkLruImageCache. Now uses SkDecodingImageGenerator + SkDiscardablePixelRef + SkDiscardableMemoryPool. SkImageDecoder::Target replaces SkBitmapFactory::Target. The DecodeMemoryToTarget function may disappear in the future. Moved SkLazyCachingPixelRef::DecodeProc replaces SkBitmapFactory::DecodeProc. This is a short term change, since another CL changes SkLazyCachingPixelRef to use SkImageGenerator instead of DecodeProc. Modified DrawBitmapRectTest to use SkDiscardablePixelRef instead of SkLazyPixelRef. tools/LazyDecodeBitmap.cpp now uses SkDecodingImageGenerator + SkDiscardablePixelRef instead of a SkBitmapFactory. bench_pictures uses the Global SkDiscardableMemoryPool instead of a global gLruImageCache. R=reed@google.com, scroggo@google.com Review URL: https://codereview.chromium.org/103033002 git-svn-id: http://skia.googlecode.com/svn/trunk@12515 2bbb7eff-a529-9590-31e7-b0007b416f81
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};
// crbug.com/295895
// Crashing in skia when a pixelref fails in lockPixels
//
static void test_faulty_pixelref(skiatest::Reporter* reporter) {
// need a cache, but don't expect to use it, so the budget is not critical
SkAutoTUnref<SkDiscardableMemoryPool> pool(
SkDiscardableMemoryPool::Create(10 * 1000, NULL));
SkBitmap bm;
bool installSuccess = SkInstallDiscardablePixelRef(SkNEW(FailureImageGenerator), &bm, pool);
Big Cleanup: SkBitmapFactory, SkLazyPixelRef, SkImageCache Removed SkBitmapFactory since no clients were using it. New cache selection mechanism can simply pass a SkDiscardableMemory::Factory into the SkDiscardablePixelRef if non-default SkDiscardableMemory should be used. Removed BitmapFactoryTest. SkDiscardableMemory::Factory interface. Android will need this functionality in the future inside their BitmapFactory. Removed SkLazyPixelRef, since it's functionality is now subsumed into SkDiscardablePixelRef. Removed LazyPixelRef test. Modified SkDiscardablePixelRef to optionally allow it to use a SkDiscardableMemory::Factory. This tiny change makes it a replacement for SkLazyPixelRef. This functioanlity is also necessary for moving Android over to SkDiscardablePixelRef from SkImageRef in a later CL. Added a test for this. SkDecodingImageGenerator::Install can optionally pass a factory in to SkDiscardablePixelRef. Removed SkImageCache, SkLruImageCache, and SkPurgeableImageCache. This functionality can be handled much more cleanly by SkDiscardableMemory. New SkDiscardableMemoryPool class to replace SkLruImageCache. In a later CL, we will replace SkImageRef_GlobalPool (used by android) as well. This is a concrete implementation of SkDiscardableMemory::Factory. Added a test for this. modified gm/factory.cpp to remove dependnce on SkBitmapFactory + SkLruImageCache. Now uses SkDecodingImageGenerator + SkDiscardablePixelRef + SkDiscardableMemoryPool. SkImageDecoder::Target replaces SkBitmapFactory::Target. The DecodeMemoryToTarget function may disappear in the future. Moved SkLazyCachingPixelRef::DecodeProc replaces SkBitmapFactory::DecodeProc. This is a short term change, since another CL changes SkLazyCachingPixelRef to use SkImageGenerator instead of DecodeProc. Modified DrawBitmapRectTest to use SkDiscardablePixelRef instead of SkLazyPixelRef. tools/LazyDecodeBitmap.cpp now uses SkDecodingImageGenerator + SkDiscardablePixelRef instead of a SkBitmapFactory. bench_pictures uses the Global SkDiscardableMemoryPool instead of a global gLruImageCache. R=reed@google.com, scroggo@google.com Review URL: https://codereview.chromium.org/103033002 git-svn-id: http://skia.googlecode.com/svn/trunk@12515 2bbb7eff-a529-9590-31e7-b0007b416f81
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REPORTER_ASSERT(reporter, installSuccess);
// now our bitmap has a pixelref, but we know it will fail to lock
SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterPMColor(200, 200));
SkCanvas* canvas = surface->getCanvas();
const SkPaint::FilterLevel levels[] = {
SkPaint::kNone_FilterLevel,
SkPaint::kLow_FilterLevel,
SkPaint::kMedium_FilterLevel,
SkPaint::kHigh_FilterLevel,
};
SkPaint paint;
canvas->scale(2, 2); // need a scale, otherwise we may ignore filtering
for (size_t i = 0; i < SK_ARRAY_COUNT(levels); ++i) {
paint.setFilterLevel(levels[i]);
canvas->drawBitmap(bm, 0, 0, &paint);
}
}
///////////////////////////////////////////////////////////////////////////////
static void rand_matrix(SkMatrix* mat, SkRandom& rand, unsigned mask) {
mat->setIdentity();
if (mask & SkMatrix::kTranslate_Mask) {
mat->postTranslate(rand.nextSScalar1(), rand.nextSScalar1());
}
if (mask & SkMatrix::kScale_Mask) {
mat->postScale(rand.nextSScalar1(), rand.nextSScalar1());
}
if (mask & SkMatrix::kAffine_Mask) {
mat->postRotate(rand.nextSScalar1() * 360);
}
if (mask & SkMatrix::kPerspective_Mask) {
mat->setPerspX(rand.nextSScalar1());
mat->setPerspY(rand.nextSScalar1());
}
}
static void rand_size(SkISize* size, SkRandom& rand) {
size->set(rand.nextU() & 0xFFFF, rand.nextU() & 0xFFFF);
}
static bool treat_as_sprite(const SkMatrix& mat, const SkISize& size,
unsigned bits) {
return SkTreatAsSprite(mat, size.width(), size.height(), bits);
}
static void test_treatAsSprite(skiatest::Reporter* reporter) {
const unsigned bilerBits = kSkSubPixelBitsForBilerp;
SkMatrix mat;
SkISize size;
SkRandom rand;
// assert: translate-only no-filter can always be treated as sprite
for (int i = 0; i < 1000; ++i) {
rand_matrix(&mat, rand, SkMatrix::kTranslate_Mask);
for (int j = 0; j < 1000; ++j) {
rand_size(&size, rand);
REPORTER_ASSERT(reporter, treat_as_sprite(mat, size, 0));
}
}
// assert: rotate/perspect is never treated as sprite
for (int i = 0; i < 1000; ++i) {
rand_matrix(&mat, rand, SkMatrix::kAffine_Mask | SkMatrix::kPerspective_Mask);
for (int j = 0; j < 1000; ++j) {
rand_size(&size, rand);
REPORTER_ASSERT(reporter, !treat_as_sprite(mat, size, 0));
REPORTER_ASSERT(reporter, !treat_as_sprite(mat, size, bilerBits));
}
}
size.set(500, 600);
const SkScalar tooMuchSubpixel = 100.1f;
mat.setTranslate(tooMuchSubpixel, 0);
REPORTER_ASSERT(reporter, !treat_as_sprite(mat, size, bilerBits));
mat.setTranslate(0, tooMuchSubpixel);
REPORTER_ASSERT(reporter, !treat_as_sprite(mat, size, bilerBits));
const SkScalar tinySubPixel = 100.02f;
mat.setTranslate(tinySubPixel, 0);
REPORTER_ASSERT(reporter, treat_as_sprite(mat, size, bilerBits));
mat.setTranslate(0, tinySubPixel);
REPORTER_ASSERT(reporter, treat_as_sprite(mat, size, bilerBits));
const SkScalar twoThirds = SK_Scalar1 * 2 / 3;
const SkScalar bigScale = SkScalarDiv(size.width() + twoThirds, size.width());
mat.setScale(bigScale, bigScale);
REPORTER_ASSERT(reporter, !treat_as_sprite(mat, size, false));
REPORTER_ASSERT(reporter, !treat_as_sprite(mat, size, bilerBits));
const SkScalar oneThird = SK_Scalar1 / 3;
const SkScalar smallScale = SkScalarDiv(size.width() + oneThird, size.width());
mat.setScale(smallScale, smallScale);
REPORTER_ASSERT(reporter, treat_as_sprite(mat, size, false));
REPORTER_ASSERT(reporter, !treat_as_sprite(mat, size, bilerBits));
const SkScalar oneFortyth = SK_Scalar1 / 40;
const SkScalar tinyScale = SkScalarDiv(size.width() + oneFortyth, size.width());
mat.setScale(tinyScale, tinyScale);
REPORTER_ASSERT(reporter, treat_as_sprite(mat, size, false));
REPORTER_ASSERT(reporter, treat_as_sprite(mat, size, bilerBits));
}
static void assert_ifDrawnTo(skiatest::Reporter* reporter,
const SkBitmap& bm, bool shouldBeDrawn) {
for (int y = 0; y < bm.height(); ++y) {
for (int x = 0; x < bm.width(); ++x) {
if (shouldBeDrawn) {
if (SK_ColorTRANSPARENT == *bm.getAddr32(x, y)) {
REPORTER_ASSERT(reporter, false);
return;
}
} else {
// should not be drawn
if (SK_ColorTRANSPARENT != *bm.getAddr32(x, y)) {
REPORTER_ASSERT(reporter, false);
return;
}
}
}
}
}
static void test_wacky_bitmapshader(skiatest::Reporter* reporter,
int width, int height, bool shouldBeDrawn) {
SkBitmap dev;
dev.allocN32Pixels(0x56F, 0x4f6);
dev.eraseColor(SK_ColorTRANSPARENT); // necessary, so we know if we draw to it
SkMatrix matrix;
SkCanvas c(dev);
matrix.setAll(-119.34097f,
-43.436558f,
93489.945f,
43.436558f,
-119.34097f,
123.98426f,
0, 0, SK_Scalar1);
c.concat(matrix);
SkBitmap bm;
bm.allocN32Pixels(width, height);
bm.eraseColor(SK_ColorRED);
matrix.setAll(0.0078740157f,
0,
SkIntToScalar(249),
0,
0.0078740157f,
SkIntToScalar(239),
0, 0, SK_Scalar1);
SkShader* s = SkShader::CreateBitmapShader(bm, SkShader::kRepeat_TileMode,
SkShader::kRepeat_TileMode, &matrix);
SkPaint paint;
paint.setShader(s)->unref();
SkRect r = SkRect::MakeXYWH(681, 239, 695, 253);
c.drawRect(r, paint);
assert_ifDrawnTo(reporter, dev, shouldBeDrawn);
}
/*
* Original bug was asserting that the matrix-proc had generated a (Y) value
* that was out of range. This led (in the release build) to the sampler-proc
* reading memory out-of-bounds of the original bitmap.
*
* We were numerically overflowing our 16bit coordinates that we communicate
* between these two procs. The fixes was in two parts:
*
* 1. Just don't draw bitmaps larger than 64K-1 in width or height, since we
* can't represent those coordinates in our transport format (yet).
* 2. Perform an unsigned shift during the calculation, so we don't get
* sign-extension bleed when packing the two values (X,Y) into our 32bit
* slot.
*
* This tests exercises the original setup, plus 3 more to ensure that we can,
* in fact, handle bitmaps at 64K-1 (assuming we don't exceed the total
* memory allocation limit).
*/
static void test_giantrepeat_crbug118018(skiatest::Reporter* reporter) {
static const struct {
int fWidth;
int fHeight;
bool fExpectedToDraw;
} gTests[] = {
{ 0x1b294, 0x7f, false }, // crbug 118018 (width exceeds 64K)
{ 0xFFFF, 0x7f, true }, // should draw, test max width
{ 0x7f, 0xFFFF, true }, // should draw, test max height
{ 0xFFFF, 0xFFFF, false }, // allocation fails (too much RAM)
};
for (size_t i = 0; i < SK_ARRAY_COUNT(gTests); ++i) {
test_wacky_bitmapshader(reporter,
gTests[i].fWidth, gTests[i].fHeight,
gTests[i].fExpectedToDraw);
}
}
///////////////////////////////////////////////////////////////////////////////
static void test_nan_antihair() {
SkBitmap bm;
bm.allocN32Pixels(20, 20);
SkCanvas canvas(bm);
SkPath path;
path.moveTo(0, 0);
path.lineTo(10, SK_ScalarNaN);
SkPaint paint;
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kStroke_Style);
// before our fix to SkScan_Antihair.cpp to check for integral NaN (0x800...)
// this would trigger an assert/crash.
//
// see rev. 3558
canvas.drawPath(path, paint);
}
static bool check_for_all_zeros(const SkBitmap& bm) {
SkAutoLockPixels alp(bm);
size_t count = bm.width() * bm.bytesPerPixel();
for (int y = 0; y < bm.height(); y++) {
const uint8_t* ptr = reinterpret_cast<const uint8_t*>(bm.getAddr(0, y));
for (size_t i = 0; i < count; i++) {
if (ptr[i]) {
return false;
}
}
}
return true;
}
static const int gWidth = 256;
static const int gHeight = 256;
static void create(SkBitmap* bm, SkColor color) {
bm->allocN32Pixels(gWidth, gHeight);
bm->eraseColor(color);
}
DEF_TEST(DrawBitmapRect, reporter) {
SkBitmap src, dst;
create(&src, 0xFFFFFFFF);
create(&dst, 0);
SkCanvas canvas(dst);
SkIRect srcR = { gWidth, 0, gWidth + 16, 16 };
SkRect dstR = { 0, 0, SkIntToScalar(16), SkIntToScalar(16) };
canvas.drawBitmapRect(src, &srcR, dstR, NULL);
// ensure that we draw nothing if srcR does not intersect the bitmap
REPORTER_ASSERT(reporter, check_for_all_zeros(dst));
test_nan_antihair();
test_giantrepeat_crbug118018(reporter);
test_treatAsSprite(reporter);
test_faulty_pixelref(reporter);
}