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/*
* Copyright 2013 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 "Test.h"
static void test_allocpixels(skiatest::Reporter* reporter) {
const int width = 10;
const int height = 10;
const SkImageInfo info = SkImageInfo::MakeN32Premul(width, height);
const size_t explicitRowBytes = info.minRowBytes() + 24;
SkBitmap bm;
bm.setInfo(info);
REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
bm.allocPixels();
REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
bm.reset();
bm.allocPixels(info);
REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
bm.setInfo(info, explicitRowBytes);
REPORTER_ASSERT(reporter, explicitRowBytes == bm.rowBytes());
bm.allocPixels();
REPORTER_ASSERT(reporter, explicitRowBytes == bm.rowBytes());
bm.reset();
bm.allocPixels(info, explicitRowBytes);
REPORTER_ASSERT(reporter, explicitRowBytes == bm.rowBytes());
bm.reset();
bm.setInfo(info, 0);
REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
bm.reset();
bm.allocPixels(info, 0);
REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
bm.reset();
bool success = bm.setInfo(info, info.minRowBytes() - 1); // invalid for 32bit
REPORTER_ASSERT(reporter, !success);
REPORTER_ASSERT(reporter, bm.isNull());
}
static void test_bigwidth(skiatest::Reporter* reporter) {
SkBitmap bm;
int width = 1 << 29; // *4 will be the high-bit of 32bit int
SkImageInfo info = SkImageInfo::MakeA8(width, 1);
REPORTER_ASSERT(reporter, bm.setInfo(info));
REPORTER_ASSERT(reporter, bm.setInfo(info.makeColorType(kRGB_565_SkColorType)));
// for a 4-byte config, this width will compute a rowbytes of 0x80000000,
// which does not fit in a int32_t. setConfig should detect this, and fail.
// TODO: perhaps skia can relax this, and only require that rowBytes fit
// in a uint32_t (or larger), but for now this is the constraint.
REPORTER_ASSERT(reporter, !bm.setInfo(info.makeColorType(kN32_SkColorType)));
}
/**
* This test contains basic sanity checks concerning bitmaps.
*/
DEF_TEST(Bitmap, reporter) {
// Zero-sized bitmaps are allowed
for (int width = 0; width < 2; ++width) {
for (int height = 0; height < 2; ++height) {
SkBitmap bm;
bool setConf = bm.setInfo(SkImageInfo::MakeN32Premul(width, height));
REPORTER_ASSERT(reporter, setConf);
if (setConf) {
bm.allocPixels();
}
REPORTER_ASSERT(reporter, SkToBool(width & height) != bm.empty());
}
}
test_bigwidth(reporter);
test_allocpixels(reporter);
}
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