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skia2/tests/NdkEncodeTest.cpp
Leon Scroggins III 326b98981e Add platform image encoder for using NDK APIs 
Bug: skia:10369

Add SkEncodeImageWithNDK, mirroring the CG and WIC versions, for
encoding with the NDK APIs added to R.

Rename SK_ENABLE_NDK_DECODING to SK_ENABLE_NDK_IMAGES and use it for
both encoding and decoding.

Move code for converting to/from NDK types into a common location.

Update encode_platform.cpp to use NDK encoding APIs when available and
to use both types of webp (lossy and lossless). Add tests specifically
for the new implementation.

Update NdkDecodeTest to use ToolUtils::equal_pixels for comparing
pixels.

Change-Id: Ic62f89af27372ccce90b8e028e01c388a135a68c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/308800
Commit-Queue: Leon Scroggins <scroggo@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
2020-08-13 15:21:41 +00:00

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/*
* Copyright 2020 Google LLC
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "include/core/SkTypes.h"
#ifdef SK_ENABLE_NDK_IMAGES
#include "include/core/SkColor.h"
#include "include/core/SkImageEncoder.h"
#include "include/core/SkImageGenerator.h"
#include "include/private/SkMalloc.h"
#include "src/images/SkImageEncoderPriv.h"
#include "tests/Test.h"
#include "tools/Resources.h"
#include "tools/ToolUtils.h"
#include <stdint.h>
#include <vector>
static const char* kPng = "png";
static const char* kJpeg = "jpeg";
static const char* kWebpLossless = "webp_lossless";
static const char* kWebpLossy = "webp_lossy";
namespace {
static const struct {
SkEncodedImageFormat format;
int quality;
const char* name;
} gRecs[] = {
{ SkEncodedImageFormat::kPNG, 100, kPng},
{ SkEncodedImageFormat::kJPEG, 100, kJpeg},
{ SkEncodedImageFormat::kWEBP, 100, kWebpLossless},
{ SkEncodedImageFormat::kWEBP, 80, kWebpLossy},
};
}
static sk_sp<SkData> encode_ndk(const SkPixmap& pmap, SkEncodedImageFormat format, int quality) {
SkDynamicMemoryWStream stream;
return SkEncodeImageWithNDK(&stream, pmap, format, quality) ? stream.detachAsData() : nullptr;
}
DEF_TEST(NdkEncode, r) {
for (auto ct : { kRGBA_8888_SkColorType,
kRGB_565_SkColorType,
kRGBA_F16_SkColorType }) {
SkBitmap bm;
bm.allocPixels(SkImageInfo::Make(10, 10, ct, kOpaque_SkAlphaType));
bm.eraseColor(SK_ColorBLUE);
for (const auto& rec : gRecs) {
auto encoded = encode_ndk(bm.pixmap(), rec.format, rec.quality);
if (!encoded) {
ERRORF(r, "Failed to encode %s to %s\n", ToolUtils::colortype_name(ct), rec.name);
continue;
}
auto gen = SkImageGenerator::MakeFromEncoded(std::move(encoded));
if (!gen) {
ERRORF(r, "Failed to decode from %s as %s\n", ToolUtils::colortype_name(ct),
rec.name);
continue;
}
if (rec.name == kPng && bm.colorType() == kRGB_565_SkColorType) {
REPORTER_ASSERT(r, gen->getInfo().colorType() == kRGB_565_SkColorType);
} else {
REPORTER_ASSERT(r, gen->getInfo().colorType() == kN32_SkColorType);
}
SkBitmap bm2;
bm2.allocPixels(bm.info());
REPORTER_ASSERT(r, gen->getPixels(bm2.pixmap()));
for (int x = 0; x < bm.width(); x++)
for (int y = 0; y < bm.height(); y++) {
SkColor orig = bm .getColor(x, y);
SkColor actual = bm2.getColor(x, y);
REPORTER_ASSERT(r, SkColorGetA(orig) == SkColorGetA(actual));
REPORTER_ASSERT(r, SkColorGetA(orig) == 0xFF);
if (rec.name == kPng || rec.name == kWebpLossless) {
REPORTER_ASSERT(r, orig == actual);
} else {
int diffR = std::abs((int) SkColorGetR(orig) - (int) SkColorGetR(actual));
int diffG = std::abs((int) SkColorGetG(orig) - (int) SkColorGetG(actual));
int diffB = std::abs((int) SkColorGetB(orig) - (int) SkColorGetB(actual));
REPORTER_ASSERT(r, diffR <= 2 && diffG <= 1 && diffB <= 1);
}
}
}
}
}
DEF_TEST(NdkEncode_unsupportedFormats, r) {
for (auto ct : { kRGBA_8888_SkColorType,
kRGB_565_SkColorType,
kRGBA_F16_SkColorType }) {
SkBitmap bm;
bm.allocPixels(SkImageInfo::Make(10, 10, ct, kOpaque_SkAlphaType));
bm.eraseColor(SK_ColorBLUE);
for (auto format : { SkEncodedImageFormat::kBMP,
SkEncodedImageFormat::kGIF,
SkEncodedImageFormat::kICO,
SkEncodedImageFormat::kWBMP,
SkEncodedImageFormat::kPKM,
SkEncodedImageFormat::kKTX,
SkEncodedImageFormat::kASTC,
SkEncodedImageFormat::kDNG,
SkEncodedImageFormat::kHEIF }) {
REPORTER_ASSERT(r, !encode_ndk(bm.pixmap(), format, 100));
}
}
}
DEF_TEST(NdkEncode_badQuality, r) {
for (auto ct : { kRGBA_8888_SkColorType,
kRGB_565_SkColorType,
kRGBA_F16_SkColorType }) {
SkBitmap bm;
bm.allocPixels(SkImageInfo::Make(10, 10, ct, kOpaque_SkAlphaType));
bm.eraseColor(SK_ColorBLUE);
for (auto format : { SkEncodedImageFormat::kJPEG,
SkEncodedImageFormat::kPNG,
SkEncodedImageFormat::kWEBP }) {
for (int quality : {-1, -100, 101, 200}) {
REPORTER_ASSERT(r, !encode_ndk(bm.pixmap(), format, quality));
}
}
}
}
DEF_TEST(NdkEncode_nullPixels, r) {
for (auto info : { SkImageInfo::MakeUnknown(),
SkImageInfo::MakeN32Premul(10, 10),
SkImageInfo::MakeN32Premul(0, 0)}) {
SkPixmap pm(info, nullptr, info.minRowBytes());
for (const auto& rec : gRecs) {
REPORTER_ASSERT(r, !encode_ndk(pm, rec.format, rec.quality));
}
}
}
DEF_TEST(NdkEncode_badInfo, r) {
// Allocate an arbitrary amount of memory. These infos don't have a natural
// amount to allocate, and the encoder shouldn't touch the memory anyway.
// But this allows us to verify that the bad info fails, even when the pixel
// pointer is not null.
void* pixels = sk_malloc_throw(1024);
std::vector<SkPixmap> pixmaps{ SkPixmap(SkImageInfo::MakeN32Premul(-10, 10), pixels, 1000),
SkPixmap(SkImageInfo::MakeN32Premul(10, -10), pixels, 200),
SkPixmap(SkImageInfo::MakeN32Premul(10, 10), pixels, 20),
SkPixmap(SkImageInfo::MakeN32Premul(10, 10), pixels, 41),
SkPixmap(SkImageInfo::MakeN32Premul(10, 10), pixels, 0),
SkPixmap(SkImageInfo::MakeN32Premul( 0, 0), pixels, 40)};
if (sizeof(size_t) > sizeof(uint32_t)) {
pixmaps.emplace_back(SkImageInfo::MakeN32Premul(10, 10), pixels,
static_cast<size_t>(UINT32_MAX) + 1);
}
for (const auto& pm : pixmaps) {
for (const auto& rec : gRecs) {
REPORTER_ASSERT(r, !encode_ndk(pm, rec.format, rec.quality));
}
}
free(pixels);
}
DEF_TEST(NdkEncode_unsupportedColorTypes, r) {
for (SkColorType ct : {
kUnknown_SkColorType,
kAlpha_8_SkColorType,
kARGB_4444_SkColorType,
kRGB_888x_SkColorType,
kBGRA_8888_SkColorType,
kRGBA_1010102_SkColorType,
kBGRA_1010102_SkColorType,
kRGB_101010x_SkColorType,
kBGR_101010x_SkColorType,
kGray_8_SkColorType,
kRGBA_F16Norm_SkColorType,
kRGBA_F32_SkColorType,
kR8G8_unorm_SkColorType,
kA16_float_SkColorType,
kR16G16_float_SkColorType,
kA16_unorm_SkColorType,
kR16G16_unorm_SkColorType,
kR16G16B16A16_unorm_SkColorType,
}) {
auto info = SkImageInfo::Make(7, 13, ct, kOpaque_SkAlphaType, SkColorSpace::MakeSRGB());
SkBitmap bm;
bm.allocPixels(info);
bm.eraseColor(SK_ColorGREEN);
for (const auto& rec : gRecs) {
REPORTER_ASSERT(r, !encode_ndk(bm.pixmap(), rec.format, rec.quality));
}
if (!SkColorTypeIsAlwaysOpaque(ct)) {
for (auto at : { kPremul_SkAlphaType, kUnpremul_SkAlphaType}) {
info = info.makeAlphaType(at);
bm.allocPixels(info);
bm.eraseARGB(0x7F, 0xFF, 0xFF, 0xFF);
}
for (const auto& rec : gRecs) {
REPORTER_ASSERT(r, !encode_ndk(bm.pixmap(), rec.format, rec.quality));
}
}
}
}
DEF_TEST(NdkEncode_unsupportedAlphaTypes, r) {
for (auto ct : { kRGBA_8888_SkColorType,
kRGB_565_SkColorType,
kRGBA_F16_SkColorType }) {
for (auto at : { kUnknown_SkAlphaType, (SkAlphaType) -1}) {
auto info = SkImageInfo::Make(10, 10, ct, at);
size_t rowBytes = info.minRowBytes();
void* pixels = sk_malloc_throw(info.computeByteSize(rowBytes));
SkPixmap pm(info, pixels, rowBytes);
for (const auto& rec : gRecs) {
REPORTER_ASSERT(r, !encode_ndk(pm, rec.format, rec.quality));
}
free(pixels);
}
}
}
static constexpr skcms_TransferFunction k2Dot6 = {2.6f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f};
static constexpr skcms_Matrix3x3 kDCIP3 = {{
{0.486143, 0.323835, 0.154234},
{0.226676, 0.710327, 0.0629966},
{0.000800549, 0.0432385, 0.78275},
}};
static bool nearly_equal(float a, float b) {
return fabs(a - b) < .002f;
}
static bool nearly_equal(const skcms_TransferFunction& x, const skcms_TransferFunction& y) {
return nearly_equal(x.g, y.g)
&& nearly_equal(x.a, y.a)
&& nearly_equal(x.b, y.b)
&& nearly_equal(x.c, y.c)
&& nearly_equal(x.d, y.d)
&& nearly_equal(x.e, y.e)
&& nearly_equal(x.f, y.f);
}
static bool nearly_equal(const skcms_Matrix3x3& a, const skcms_Matrix3x3& b) {
for (int i = 0; i < 3; i++)
for (int j = 0; j < 3; j++) {
if (!nearly_equal(a.vals[i][j], b.vals[i][j])) return false;
}
return true;
}
static bool nearly_equal(SkColorSpace* a, SkColorSpace* b) {
skcms_TransferFunction fnA, fnB;
skcms_Matrix3x3 gamutA, gamutB;
return a && b && a->isNumericalTransferFn(&fnA) && a->toXYZD50(&gamutA)
&& b->isNumericalTransferFn(&fnB) && b->toXYZD50(&gamutB)
&& nearly_equal(fnA, fnB) && nearly_equal(gamutA, gamutB);
}
DEF_TEST(NdkEncode_ColorSpace, r) {
const struct {
sk_sp<SkColorSpace> cs;
const char* name;
} colorSpaces[] = {
{ sk_sp<SkColorSpace>(nullptr), "null" },
{ SkColorSpace::MakeSRGB(), "srgb" },
{ SkColorSpace::MakeSRGBLinear(), "srgb-linear"},
{ SkColorSpace::MakeRGB(SkNamedTransferFn::kRec2020, SkNamedGamut::kSRGB), "bt709" },
{ SkColorSpace::MakeRGB(SkNamedTransferFn::kRec2020, SkNamedGamut::kRec2020), "rec2020" },
{ SkColorSpace::MakeRGB(SkNamedTransferFn::kSRGB, SkNamedGamut::kDisplayP3), "p3" },
{ SkColorSpace::MakeRGB(SkNamedTransferFn::k2Dot2, SkNamedGamut::kAdobeRGB), "adobeRGB"},
{ SkColorSpace::MakeRGB(k2Dot6, kDCIP3), "dci-p3" },
};
for (const auto& colorSpace : colorSpaces) {
for (auto ct : { kRGBA_8888_SkColorType, kRGB_565_SkColorType, kRGBA_F16_SkColorType }) {
SkBitmap bm;
bm.allocPixels(SkImageInfo::Make(10, 10, ct, kOpaque_SkAlphaType, colorSpace.cs));
bm.eraseColor(SK_ColorRED);
for (const auto& rec : gRecs) {
auto encoded = encode_ndk(bm.pixmap(), rec.format, rec.quality);
REPORTER_ASSERT(r, encoded);
auto gen = SkImageGenerator::MakeFromEncoded(std::move(encoded));
REPORTER_ASSERT(r, gen);
auto expected = colorSpace.cs ? colorSpace.cs : SkColorSpace::MakeSRGB();
auto* actual = gen->getInfo().colorSpace();
if (!nearly_equal(actual, expected.get())) {
const char* name = "unknown";
for (auto named : colorSpaces) {
if (nearly_equal(actual, named.cs.get())) {
name = named.name;
break;
}
}
ERRORF(r, "Mismatch: expected: %s\tactual:%s", colorSpace.name, name);
}
}
}
}
}
DEF_TEST(NdkEncode_unsupportedColorSpace, r) {
std::vector<sk_sp<SkColorSpace>> unsupportedCs;
for (auto gamut : { SkNamedGamut::kSRGB, SkNamedGamut::kAdobeRGB, SkNamedGamut::kDisplayP3,
SkNamedGamut::kRec2020, SkNamedGamut::kXYZ }) {
unsupportedCs.push_back(SkColorSpace::MakeRGB(SkNamedTransferFn::kPQ, gamut));
unsupportedCs.push_back(SkColorSpace::MakeRGB(SkNamedTransferFn::kHLG, gamut));
unsupportedCs.push_back(SkColorSpace::MakeRGB(k2Dot6, gamut));
}
for (auto gamut : { SkNamedGamut::kSRGB, SkNamedGamut::kDisplayP3,
SkNamedGamut::kRec2020, SkNamedGamut::kXYZ }) {
unsupportedCs.push_back(SkColorSpace::MakeRGB(SkNamedTransferFn::k2Dot2, gamut));
}
for (auto gamut : { SkNamedGamut::kAdobeRGB, SkNamedGamut::kDisplayP3,
SkNamedGamut::kXYZ }) {
unsupportedCs.push_back(SkColorSpace::MakeRGB(SkNamedTransferFn::kRec2020, gamut));
}
for (auto gamut : { SkNamedGamut::kAdobeRGB, SkNamedGamut::kDisplayP3,
SkNamedGamut::kRec2020, SkNamedGamut::kXYZ }) {
unsupportedCs.push_back(SkColorSpace::MakeRGB(SkNamedTransferFn::kLinear, gamut));
}
for (auto gamut : { SkNamedGamut::kAdobeRGB,
SkNamedGamut::kRec2020, SkNamedGamut::kXYZ }) {
unsupportedCs.push_back(SkColorSpace::MakeRGB(SkNamedTransferFn::kSRGB, gamut));
}
for (auto fn : { SkNamedTransferFn::kSRGB, SkNamedTransferFn::k2Dot2,
SkNamedTransferFn::kLinear, SkNamedTransferFn::kRec2020 }) {
unsupportedCs.push_back(SkColorSpace::MakeRGB(fn, kDCIP3));
}
for (auto unsupported : unsupportedCs) {
for (auto ct : { kRGBA_8888_SkColorType, kRGB_565_SkColorType, kRGBA_F16_SkColorType }) {
SkBitmap bm;
bm.allocPixels(SkImageInfo::Make(10, 10, ct, kOpaque_SkAlphaType, unsupported));
bm.eraseColor(SK_ColorBLUE);
for (const auto& rec : gRecs) {
REPORTER_ASSERT(r, !encode_ndk(bm.pixmap(), rec.format, rec.quality));
}
}
}
}
#endif // SK_ENABLE_NDK_IMAGES
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