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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Resources.h"
#include "SkColorSpace.h"
#include "SkColorSpacePriv.h"
#include "SkData.h"
#include "SkICC.h"
#include "SkMatrix44.h"
#include "SkStream.h"
#include "Test.h"
static bool almost_equal(float a, float b) {
return SkTAbs(a - b) < 0.001f;
}
static inline void test_to_xyz_d50(skiatest::Reporter* r, SkICC* icc, bool shouldSucceed,
const float* reference) {
SkMatrix44 result(SkMatrix44::kUninitialized_Constructor);
REPORTER_ASSERT(r, shouldSucceed == icc->toXYZD50(&result));
if (shouldSucceed) {
float resultVals[16];
result.asColMajorf(resultVals);
for (int i = 0; i < 16; i++) {
REPORTER_ASSERT(r, almost_equal(resultVals[i], reference[i]));
}
}
}
DEF_TEST(ICC_ToXYZD50, r) {
const float z30Reference[16] = {
0.59825f, 0.27103f, 0.00603f, 0.0f, 0.22243f, 0.67447f, 0.07368f, 0.0f, 0.14352f, 0.05449f,
0.74519f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,
};
sk_sp<SkData> data = SkData::MakeFromFileName(
GetResourcePath("icc_profiles/HP_ZR30w.icc").c_str());
sk_sp<SkICC> z30 = SkICC::Make(data->data(), data->size());
test_to_xyz_d50(r, z30.get(), true, z30Reference);
const float z32Reference[16] = {
0.61583f, 0.28789f, 0.00513f, 0.0f, 0.20428f, 0.66972f, 0.06609f, 0.0f, 0.14409f, 0.04237f,
0.75368f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,
};
data = SkData::MakeFromFileName( GetResourcePath("icc_profiles/HP_Z32x.icc").c_str());
sk_sp<SkICC> z32 = SkICC::Make(data->data(), data->size());
test_to_xyz_d50(r, z32.get(), true, z32Reference);
data = SkData::MakeFromFileName(GetResourcePath("icc_profiles/upperLeft.icc").c_str());
sk_sp<SkICC> upperLeft = SkICC::Make(data->data(), data->size());
test_to_xyz_d50(r, upperLeft.get(), false, z32Reference);
data = SkData::MakeFromFileName(GetResourcePath("icc_profiles/upperRight.icc").c_str());
sk_sp<SkICC> upperRight = SkICC::Make(data->data(), data->size());
test_to_xyz_d50(r, upperRight.get(), false, z32Reference);
}
static inline void test_is_numerical_transfer_fn(skiatest::Reporter* r, SkICC* icc,
bool shouldSucceed,
const SkColorSpaceTransferFn& reference) {
SkColorSpaceTransferFn result;
REPORTER_ASSERT(r, shouldSucceed == icc->isNumericalTransferFn(&result));
if (shouldSucceed) {
REPORTER_ASSERT(r, 0 == memcmp(&result, &reference, sizeof(SkColorSpaceTransferFn)));
}
}
DEF_TEST(ICC_IsNumericalTransferFn, r) {
SkColorSpaceTransferFn referenceFn;
referenceFn.fA = 1.0f;
referenceFn.fB = 0.0f;
referenceFn.fC = 0.0f;
referenceFn.fD = 0.0f;
referenceFn.fE = 0.0f;
referenceFn.fF = 0.0f;
referenceFn.fG = 2.2f;
sk_sp<SkData> data = SkData::MakeFromFileName(
GetResourcePath("icc_profiles/HP_ZR30w.icc").c_str());
sk_sp<SkICC> z30 = SkICC::Make(data->data(), data->size());
test_is_numerical_transfer_fn(r, z30.get(), true, referenceFn);
data = SkData::MakeFromFileName( GetResourcePath("icc_profiles/HP_Z32x.icc").c_str());
sk_sp<SkICC> z32 = SkICC::Make(data->data(), data->size());
test_is_numerical_transfer_fn(r, z32.get(), true, referenceFn);
data = SkData::MakeFromFileName(GetResourcePath("icc_profiles/upperLeft.icc").c_str());
sk_sp<SkICC> upperLeft = SkICC::Make(data->data(), data->size());
test_is_numerical_transfer_fn(r, upperLeft.get(), false, referenceFn);
data = SkData::MakeFromFileName(GetResourcePath("icc_profiles/upperRight.icc").c_str());
sk_sp<SkICC> upperRight = SkICC::Make(data->data(), data->size());
test_is_numerical_transfer_fn(r, upperRight.get(), false, referenceFn);
}
static inline void test_write_icc(skiatest::Reporter* r, const SkColorSpaceTransferFn& fn,
const SkMatrix44& toXYZD50, SkColorSpace* reference,
bool writeToFile) {
sk_sp<SkData> profile = SkICC::WriteToICC(fn, toXYZD50);
if (writeToFile) {
SkFILEWStream stream("out.icc");
stream.write(profile->data(), profile->size());
}
sk_sp<SkColorSpace> colorSpace = SkColorSpace::MakeICC(profile->data(), profile->size());
REPORTER_ASSERT(r, SkColorSpace::Equals(reference, colorSpace.get()));
}
DEF_TEST(ICC_WriteICC, r) {
SkColorSpaceTransferFn adobeFn;
adobeFn.fA = 1.0f;
adobeFn.fB = 0.0f;
adobeFn.fC = 0.0f;
adobeFn.fD = 0.0f;
adobeFn.fE = 0.0f;
adobeFn.fF = 0.0f;
adobeFn.fG = 2.2f;
SkMatrix44 adobeMatrix(SkMatrix44::kUninitialized_Constructor);
adobeMatrix.set3x3RowMajorf(gAdobeRGB_toXYZD50);
test_write_icc(r, adobeFn, adobeMatrix,
SkColorSpace::MakeNamed(SkColorSpace::kAdobeRGB_Named).get(), false);
SkColorSpaceTransferFn srgbFn;
srgbFn.fA = 1.0f / 1.055f;
srgbFn.fB = 0.055f / 1.055f;
srgbFn.fC = 1.0f / 12.92f;
srgbFn.fD = 0.04045f;
srgbFn.fE = 0.0f;
srgbFn.fF = 0.0f;
srgbFn.fG = 2.4f;
SkMatrix44 srgbMatrix(SkMatrix44::kUninitialized_Constructor);
srgbMatrix.set3x3RowMajorf(gSRGB_toXYZD50);
test_write_icc(r, srgbFn, srgbMatrix, SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named).get(),
false);
}
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