| /* |
| * 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 "SkMallocPixelRef.h" |
| #include "SkRandom.h" |
| #include "Test.h" |
| #include "sk_tool_utils.h" |
| |
| static void test_peekpixels(skiatest::Reporter* reporter) { |
| const SkImageInfo info = SkImageInfo::MakeN32Premul(10, 10); |
| |
| SkPixmap pmap; |
| SkBitmap bm; |
| |
| // empty should return false |
| REPORTER_ASSERT(reporter, !bm.peekPixels(nullptr)); |
| REPORTER_ASSERT(reporter, !bm.peekPixels(&pmap)); |
| |
| // no pixels should return false |
| bm.setInfo(SkImageInfo::MakeN32Premul(10, 10)); |
| REPORTER_ASSERT(reporter, !bm.peekPixels(nullptr)); |
| REPORTER_ASSERT(reporter, !bm.peekPixels(&pmap)); |
| |
| // real pixels should return true |
| bm.allocPixels(info); |
| REPORTER_ASSERT(reporter, bm.peekPixels(nullptr)); |
| REPORTER_ASSERT(reporter, bm.peekPixels(&pmap)); |
| REPORTER_ASSERT(reporter, pmap.info() == bm.info()); |
| REPORTER_ASSERT(reporter, pmap.addr() == bm.getPixels()); |
| REPORTER_ASSERT(reporter, pmap.rowBytes() == bm.rowBytes()); |
| } |
| |
| // https://code.google.com/p/chromium/issues/detail?id=446164 |
| static void test_bigalloc(skiatest::Reporter* reporter) { |
| const int width = 0x40000001; |
| const int height = 0x00000096; |
| const SkImageInfo info = SkImageInfo::MakeN32Premul(width, height); |
| |
| SkBitmap bm; |
| REPORTER_ASSERT(reporter, !bm.tryAllocPixels(info)); |
| |
| sk_sp<SkPixelRef> pr = SkMallocPixelRef::MakeAllocate(info, info.minRowBytes()); |
| REPORTER_ASSERT(reporter, !pr); |
| } |
| |
| 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); |
| test_bigalloc(reporter); |
| test_peekpixels(reporter); |
| } |
| |
| /** |
| * This test checks that getColor works for both swizzles. |
| */ |
| DEF_TEST(Bitmap_getColor_Swizzle, r) { |
| SkBitmap source; |
| source.allocN32Pixels(1,1); |
| source.eraseColor(SK_ColorRED); |
| SkColorType colorTypes[] = { |
| kRGBA_8888_SkColorType, |
| kBGRA_8888_SkColorType, |
| }; |
| for (SkColorType ct : colorTypes) { |
| SkBitmap copy; |
| if (!sk_tool_utils::copy_to(©, ct, source)) { |
| ERRORF(r, "SkBitmap::copy failed %d", (int)ct); |
| continue; |
| } |
| REPORTER_ASSERT(r, source.getColor(0, 0) == copy.getColor(0, 0)); |
| } |
| } |
| |
| static void test_erasecolor_premul(skiatest::Reporter* reporter, SkColorType ct, SkColor input, |
| SkColor expected) { |
| SkBitmap bm; |
| bm.allocPixels(SkImageInfo::Make(1, 1, ct, kPremul_SkAlphaType)); |
| bm.eraseColor(input); |
| INFOF(reporter, "expected: %x actual: %x\n", expected, bm.getColor(0, 0)); |
| REPORTER_ASSERT(reporter, bm.getColor(0, 0) == expected); |
| } |
| |
| /** |
| * This test checks that eraseColor premultiplies the color correctly. |
| */ |
| DEF_TEST(Bitmap_eraseColor_Premul, r) { |
| SkColor color = 0x80FF0080; |
| test_erasecolor_premul(r, kAlpha_8_SkColorType, color, 0x80000000); |
| test_erasecolor_premul(r, kRGB_565_SkColorType, color, 0xFF840042); |
| test_erasecolor_premul(r, kARGB_4444_SkColorType, color, 0x88FF0080); |
| test_erasecolor_premul(r, kRGBA_8888_SkColorType, color, color); |
| test_erasecolor_premul(r, kBGRA_8888_SkColorType, color, color); |
| } |
| |
| // Test that SkBitmap::ComputeOpaque() is correct for various colortypes. |
| DEF_TEST(Bitmap_compute_is_opaque, r) { |
| struct { |
| SkColorType fCT; |
| SkAlphaType fAT; |
| } types[] = { |
| { kGray_8_SkColorType, kOpaque_SkAlphaType }, |
| { kAlpha_8_SkColorType, kPremul_SkAlphaType }, |
| { kARGB_4444_SkColorType, kPremul_SkAlphaType }, |
| { kRGB_565_SkColorType, kOpaque_SkAlphaType }, |
| { kBGRA_8888_SkColorType, kPremul_SkAlphaType }, |
| { kRGBA_8888_SkColorType, kPremul_SkAlphaType }, |
| { kRGBA_F16_SkColorType, kPremul_SkAlphaType }, |
| }; |
| for (auto type : types) { |
| SkBitmap bm; |
| REPORTER_ASSERT(r, !SkBitmap::ComputeIsOpaque(bm)); |
| |
| bm.allocPixels(SkImageInfo::Make(13, 17, type.fCT, type.fAT)); |
| bm.eraseColor(SkColorSetARGB(255, 10, 20, 30)); |
| REPORTER_ASSERT(r, SkBitmap::ComputeIsOpaque(bm)); |
| |
| bm.eraseColor(SkColorSetARGB(128, 255, 255, 255)); |
| bool isOpaque = SkBitmap::ComputeIsOpaque(bm); |
| bool shouldBeOpaque = (type.fAT == kOpaque_SkAlphaType); |
| REPORTER_ASSERT(r, isOpaque == shouldBeOpaque); |
| } |
| } |
| |
| // Test that erase+getColor round trips with RGBA_F16 pixels. |
| DEF_TEST(Bitmap_erase_f16_erase_getColor, r) { |
| SkRandom random; |
| SkPixmap pm; |
| SkBitmap bm; |
| bm.allocPixels(SkImageInfo::Make(1, 1, kRGBA_F16_SkColorType, kPremul_SkAlphaType)); |
| REPORTER_ASSERT(r, bm.peekPixels(&pm)); |
| for (unsigned i = 0; i < 0x100; ++i) { |
| // Test all possible values of blue component. |
| SkColor color1 = (SkColor)((random.nextU() & 0xFFFFFF00) | i); |
| // Test all possible values of alpha component. |
| SkColor color2 = (SkColor)((random.nextU() & 0x00FFFFFF) | (i << 24)); |
| for (SkColor color : {color1, color2}) { |
| pm.erase(color); |
| if (SkColorGetA(color) != 0) { |
| REPORTER_ASSERT(r, color == pm.getColor(0, 0)); |
| } else { |
| REPORTER_ASSERT(r, 0 == SkColorGetA(pm.getColor(0, 0))); |
| } |
| } |
| } |
| } |
| |
| // Make sure that the bitmap remains valid when pixelref is removed. |
| DEF_TEST(Bitmap_clear_pixelref_keep_info, r) { |
| SkBitmap bm; |
| bm.allocPixels(SkImageInfo::MakeN32Premul(100,100)); |
| bm.setPixelRef(nullptr, 0, 0); |
| SkDEBUGCODE(bm.validate();) |
| } |
| |