148 lines
4.9 KiB
C++
148 lines
4.9 KiB
C++
/*
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* Copyright 2013 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkBitmap.h"
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#include "SkMallocPixelRef.h"
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#include "Test.h"
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static void test_peekpixels(skiatest::Reporter* reporter) {
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const SkImageInfo info = SkImageInfo::MakeN32Premul(10, 10);
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SkPixmap pmap;
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SkBitmap bm;
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// empty should return false
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REPORTER_ASSERT(reporter, !bm.peekPixels(nullptr));
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REPORTER_ASSERT(reporter, !bm.peekPixels(&pmap));
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// no pixels should return false
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bm.setInfo(SkImageInfo::MakeN32Premul(10, 10));
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REPORTER_ASSERT(reporter, !bm.peekPixels(nullptr));
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REPORTER_ASSERT(reporter, !bm.peekPixels(&pmap));
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// real pixels should return true
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bm.allocPixels(info);
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REPORTER_ASSERT(reporter, bm.peekPixels(nullptr));
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REPORTER_ASSERT(reporter, bm.peekPixels(&pmap));
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REPORTER_ASSERT(reporter, pmap.info() == bm.info());
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REPORTER_ASSERT(reporter, pmap.addr() == bm.getPixels());
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REPORTER_ASSERT(reporter, pmap.rowBytes() == bm.rowBytes());
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REPORTER_ASSERT(reporter, pmap.ctable() == bm.getColorTable());
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}
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// https://code.google.com/p/chromium/issues/detail?id=446164
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static void test_bigalloc(skiatest::Reporter* reporter) {
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const int width = 0x40000001;
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const int height = 0x00000096;
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const SkImageInfo info = SkImageInfo::MakeN32Premul(width, height);
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SkBitmap bm;
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REPORTER_ASSERT(reporter, !bm.tryAllocPixels(info));
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SkPixelRef* pr = SkMallocPixelRef::NewAllocate(info, info.minRowBytes(), nullptr);
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REPORTER_ASSERT(reporter, !pr);
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}
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static void test_allocpixels(skiatest::Reporter* reporter) {
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const int width = 10;
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const int height = 10;
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const SkImageInfo info = SkImageInfo::MakeN32Premul(width, height);
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const size_t explicitRowBytes = info.minRowBytes() + 24;
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SkBitmap bm;
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bm.setInfo(info);
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REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
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bm.allocPixels();
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REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
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bm.reset();
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bm.allocPixels(info);
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REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
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bm.setInfo(info, explicitRowBytes);
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REPORTER_ASSERT(reporter, explicitRowBytes == bm.rowBytes());
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bm.allocPixels();
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REPORTER_ASSERT(reporter, explicitRowBytes == bm.rowBytes());
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bm.reset();
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bm.allocPixels(info, explicitRowBytes);
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REPORTER_ASSERT(reporter, explicitRowBytes == bm.rowBytes());
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bm.reset();
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bm.setInfo(info, 0);
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REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
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bm.reset();
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bm.allocPixels(info, 0);
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REPORTER_ASSERT(reporter, info.minRowBytes() == bm.rowBytes());
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bm.reset();
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bool success = bm.setInfo(info, info.minRowBytes() - 1); // invalid for 32bit
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REPORTER_ASSERT(reporter, !success);
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REPORTER_ASSERT(reporter, bm.isNull());
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}
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static void test_bigwidth(skiatest::Reporter* reporter) {
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SkBitmap bm;
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int width = 1 << 29; // *4 will be the high-bit of 32bit int
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SkImageInfo info = SkImageInfo::MakeA8(width, 1);
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REPORTER_ASSERT(reporter, bm.setInfo(info));
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REPORTER_ASSERT(reporter, bm.setInfo(info.makeColorType(kRGB_565_SkColorType)));
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// for a 4-byte config, this width will compute a rowbytes of 0x80000000,
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// which does not fit in a int32_t. setConfig should detect this, and fail.
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// TODO: perhaps skia can relax this, and only require that rowBytes fit
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// in a uint32_t (or larger), but for now this is the constraint.
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REPORTER_ASSERT(reporter, !bm.setInfo(info.makeColorType(kN32_SkColorType)));
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}
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/**
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* This test contains basic sanity checks concerning bitmaps.
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*/
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DEF_TEST(Bitmap, reporter) {
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// Zero-sized bitmaps are allowed
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for (int width = 0; width < 2; ++width) {
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for (int height = 0; height < 2; ++height) {
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SkBitmap bm;
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bool setConf = bm.setInfo(SkImageInfo::MakeN32Premul(width, height));
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REPORTER_ASSERT(reporter, setConf);
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if (setConf) {
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bm.allocPixels();
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}
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REPORTER_ASSERT(reporter, SkToBool(width & height) != bm.empty());
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}
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}
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test_bigwidth(reporter);
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test_allocpixels(reporter);
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test_bigalloc(reporter);
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test_peekpixels(reporter);
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}
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/**
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* This test checks that getColor works for both swizzles.
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*/
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DEF_TEST(Bitmap_getColor_Swizzle, r) {
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SkBitmap source;
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source.allocN32Pixels(1,1);
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source.eraseColor(SK_ColorRED);
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SkColorType colorTypes[] = {
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kRGBA_8888_SkColorType,
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kBGRA_8888_SkColorType,
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};
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for (SkColorType ct : colorTypes) {
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SkBitmap copy;
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if (!source.copyTo(©, ct)) {
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ERRORF(r, "SkBitmap::copy failed %d", (int)ct);
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continue;
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}
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SkAutoLockPixels autoLockPixels1(copy);
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SkAutoLockPixels autoLockPixels2(source);
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REPORTER_ASSERT(r, source.getColor(0, 0) == copy.getColor(0, 0));
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}
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}
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