void createColorTransform(const ColorProfile& colorProfile, bool hasAlpha, bool sRGB)
{
clearColorTransform();
if (colorProfile.isEmpty() && !sRGB)
return;
qcms_profile* deviceProfile = ImageDecoder::qcmsOutputDeviceProfile();
if (!deviceProfile)
return;
qcms_profile* inputProfile = 0;
if (!colorProfile.isEmpty())
inputProfile = qcms_profile_from_memory(colorProfile.data(), colorProfile.size());
else
inputProfile = qcms_profile_sRGB();
if (!inputProfile)
return;
// We currently only support color profiles for RGB and RGBA images.
ASSERT(rgbData == qcms_profile_get_color_space(inputProfile));
if (qcms_profile_match(inputProfile, deviceProfile)) {
qcms_profile_release(inputProfile);
return;
}
// FIXME: Don't force perceptual intent if the image profile contains an intent.
qcms_data_type dataFormat = hasAlpha ? QCMS_DATA_RGBA_8 : QCMS_DATA_RGB_8;
m_transform = qcms_transform_create(inputProfile, dataFormat, deviceProfile, dataFormat, QCMS_INTENT_PERCEPTUAL);
qcms_profile_release(inputProfile);
}
void ColorCodecBench::onDelayedSetup() {
SkAutoTDelete<SkCodec> codec(SkCodec::NewFromData(fEncoded));
fSrcData = codec->getICCData();
sk_sp<SkData> dstData = SkData::MakeFromFileName(
GetResourcePath("icc_profiles/HP_ZR30w.icc").c_str());
SkASSERT(dstData);
fDstSpace = nullptr;
#if defined(SK_TEST_QCMS)
if (FLAGS_qcms) {
fDstSpaceQCMS.reset(FLAGS_srgb ?
qcms_profile_sRGB() :
qcms_profile_from_memory(dstData->data(), dstData->size()));
SkASSERT(fDstSpaceQCMS);
// This call takes a non-trivial amount of time, but I think it's the most fair to
// treat it as overhead. It only needs to happen once.
qcms_profile_precache_output_transform(fDstSpaceQCMS);
} else
#endif
{
fDstSpace = FLAGS_srgb ? SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named) :
SkColorSpace::MakeICC(dstData->data(), dstData->size());
SkASSERT(fDstSpace);
}
fSrcInfo = codec->getInfo().makeColorType(kRGBA_8888_SkColorType);
fDstInfo = fSrcInfo;
if (FLAGS_half) {
fDstInfo = fDstInfo.makeColorType(kRGBA_F16_SkColorType);
SkASSERT(SkColorSpace_Base::Type::kXYZ == as_CSB(fDstSpace)->type());
fDstSpace = static_cast<SkColorSpace_XYZ*>(fDstSpace.get())->makeLinearGamma();
}
if (FLAGS_nonstd) {
SkColorSpaceTransferFn gamma;
gamma.fA = 1.0f;
gamma.fB = gamma.fC = gamma.fD = gamma.fE = gamma.fF = 0.0f;
gamma.fG = 4.0f;
SkMatrix44 matrix = SkMatrix44(SkMatrix44::kUninitialized_Constructor);
matrix.set3x3(0.30f, 0.31f, 0.28f, 0.32f, 0.33f, 0.29f, 0.27f, 0.30f, 0.30f);
fDstSpace = SkColorSpace::MakeRGB(gamma, matrix);
}
fDstInfo = fDstInfo.makeColorSpace(fDstSpace);
fDst.reset(fDstInfo.getSafeSize(fDstInfo.minRowBytes()));
if (FLAGS_xform_only) {
fSrc.reset(fSrcInfo.getSafeSize(fSrcInfo.minRowBytes()));
codec->getPixels(fSrcInfo, fSrc.get(), fSrcInfo.minRowBytes());
}
#if defined(SK_TEST_QCMS)
else if (FLAGS_qcms) {
// Set-up a row buffer to decode into before transforming to dst.
fSrc.reset(fSrcInfo.minRowBytes());
}
#endif
}
TESTFUNC_TYPE
LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
{
qcms_enable_iccv4();
qcms_profile* profile = qcms_profile_from_memory(data, size);
if (!profile) {
return 0;
}
qcms_profile* srgb_profile = qcms_profile_sRGB();
if (!srgb_profile) {
qcms_profile_release(profile);
return 0;
}
transform(profile, srgb_profile, size);
// Firefox only checks the display (destination) profile.
if (qcms_profile_is_bogus(profile)) {
goto release_profiles;
};
transform(srgb_profile, profile, size);
release_profiles:
qcms_profile_release(profile);
qcms_profile_release(srgb_profile);
return 0;
}
// -----------------------------------------------------------------------------
// Color profile handling
static int ApplyColorProfile(const WebPData* const profile,
WebPDecBuffer* const rgba) {
#ifdef WEBP_HAVE_QCMS
int i, ok = 0;
uint8_t* line;
uint8_t major_revision;
qcms_profile* input_profile = NULL;
qcms_profile* output_profile = NULL;
qcms_transform* transform = NULL;
const qcms_data_type input_type = QCMS_DATA_RGBA_8;
const qcms_data_type output_type = QCMS_DATA_RGBA_8;
const qcms_intent intent = QCMS_INTENT_DEFAULT;
if (profile == NULL || rgba == NULL) return 0;
if (profile->bytes == NULL || profile->size < 10) return 1;
major_revision = profile->bytes[8];
qcms_enable_iccv4();
input_profile = qcms_profile_from_memory(profile->bytes, profile->size);
// qcms_profile_is_bogus() is broken with ICCv4.
if (input_profile == NULL ||
(major_revision < 4 && qcms_profile_is_bogus(input_profile))) {
fprintf(stderr, "Color profile is bogus!\n");
goto Error;
}
output_profile = qcms_profile_sRGB();
if (output_profile == NULL) {
fprintf(stderr, "Error creating output color profile!\n");
goto Error;
}
qcms_profile_precache_output_transform(output_profile);
transform = qcms_transform_create(input_profile, input_type,
output_profile, output_type,
intent);
if (transform == NULL) {
fprintf(stderr, "Error creating color transform!\n");
goto Error;
}
line = rgba->u.RGBA.rgba;
for (i = 0; i < rgba->height; ++i, line += rgba->u.RGBA.stride) {
qcms_transform_data(transform, line, line, rgba->width);
}
ok = 1;
Error:
if (input_profile != NULL) qcms_profile_release(input_profile);
if (output_profile != NULL) qcms_profile_release(output_profile);
if (transform != NULL) qcms_transform_release(transform);
return ok;
#else
(void)profile;
(void)rgba;
return 1;
#endif // WEBP_HAVE_QCMS
}
qcms_profile *
gfxPlatform::GetCMSsRGBProfile()
{
if (!gCMSsRGBProfile) {
/* Create the profile using qcms. */
gCMSsRGBProfile = qcms_profile_sRGB();
}
return gCMSsRGBProfile;
}
void do_test(void) {
unsigned char srct[4] = { 221, 79, 129, 92};
unsigned char outt[4];
qcms_transform *transform;
qcms_profile *input_profile, *output_profile, *rgb;
qcms_CIE_xyY white_point = { 0, 0, 1.};
qcms_CIE_xyYTRIPLE primaries = { {.9, .3, 1.}, {.2, .4, 1.}, {.7, .4, 1.}};
rgb = qcms_profile_create_rgb_with_gamma(white_point, primaries, 1.8);
input_profile = qcms_profile_sRGB();
output_profile = qcms_profile_sRGB();
if (output_profile) {
test_gray(output_profile);
test_gray_precache(output_profile);
qcms_profile_release(output_profile);
}
if (input_profile)
qcms_profile_release(input_profile);
if (rgb)
qcms_profile_release(rgb);
rgb = qcms_profile_from_path("sample-trunc.icc");
if (rgb)
qcms_profile_release(rgb);
}
static int qcms_test_internal_srgb(size_t width,
size_t height,
int iterations,
const char *in_path,
const char *out_path,
const int force_software)
{
qcms_profile *profile = qcms_profile_sRGB();
s15Fixed16Number sRGB_internal[3][3];
s15Fixed16Number diff = 0;
int i, j;
printf("Test qcms internal sRGB colorant matrix against official sRGB IEC61966-2.1 color (D50) primaries\n");
sRGB_internal[0][0] = profile->redColorant.X;
sRGB_internal[1][0] = profile->redColorant.Y;
sRGB_internal[2][0] = profile->redColorant.Z;
sRGB_internal[0][1] = profile->greenColorant.X;
sRGB_internal[1][1] = profile->greenColorant.Y;
sRGB_internal[2][1] = profile->greenColorant.Z;
sRGB_internal[0][2] = profile->blueColorant.X;
sRGB_internal[1][2] = profile->blueColorant.Y;
sRGB_internal[2][2] = profile->blueColorant.Z;
for (i = 0; i < 3; i++) {
for (j = 0; j < 3; j++) {
s15Fixed16Number tmp = sRGB_internal[i][j] - sRGB_reference[i][j];
printf("\t%d", tmp);
diff += abs(tmp);
}
printf("\n");
}
qcms_profile_release(profile);
printf("Total error = 0x%x [%.6f]\n", diff, diff / 65536.0);
return diff;
}
// Adapted from http://www.littlecms.com/pngchrm.c example code
static qcms_profile*
PNGGetColorProfile(png_structp png_ptr, png_infop info_ptr,
int color_type, qcms_data_type* inType, uint32_t* intent)
{
qcms_profile* profile = nullptr;
*intent = QCMS_INTENT_PERCEPTUAL; // Our default
// First try to see if iCCP chunk is present
if (png_get_valid(png_ptr, info_ptr, PNG_INFO_iCCP)) {
png_uint_32 profileLen;
png_bytep profileData;
png_charp profileName;
int compression;
png_get_iCCP(png_ptr, info_ptr, &profileName, &compression,
&profileData, &profileLen);
profile = qcms_profile_from_memory((char*)profileData, profileLen);
if (profile) {
uint32_t profileSpace = qcms_profile_get_color_space(profile);
bool mismatch = false;
if (color_type & PNG_COLOR_MASK_COLOR) {
if (profileSpace != icSigRgbData) {
mismatch = true;
}
} else {
if (profileSpace == icSigRgbData) {
png_set_gray_to_rgb(png_ptr);
} else if (profileSpace != icSigGrayData) {
mismatch = true;
}
}
if (mismatch) {
qcms_profile_release(profile);
profile = nullptr;
} else {
*intent = qcms_profile_get_rendering_intent(profile);
}
}
}
// Check sRGB chunk
if (!profile && png_get_valid(png_ptr, info_ptr, PNG_INFO_sRGB)) {
profile = qcms_profile_sRGB();
if (profile) {
int fileIntent;
png_set_gray_to_rgb(png_ptr);
png_get_sRGB(png_ptr, info_ptr, &fileIntent);
uint32_t map[] = { QCMS_INTENT_PERCEPTUAL,
QCMS_INTENT_RELATIVE_COLORIMETRIC,
QCMS_INTENT_SATURATION,
QCMS_INTENT_ABSOLUTE_COLORIMETRIC };
*intent = map[fileIntent];
}
}
// Check gAMA/cHRM chunks
if (!profile &&
png_get_valid(png_ptr, info_ptr, PNG_INFO_gAMA) &&
png_get_valid(png_ptr, info_ptr, PNG_INFO_cHRM)) {
qcms_CIE_xyYTRIPLE primaries;
qcms_CIE_xyY whitePoint;
png_get_cHRM(png_ptr, info_ptr,
&whitePoint.x, &whitePoint.y,
&primaries.red.x, &primaries.red.y,
&primaries.green.x, &primaries.green.y,
&primaries.blue.x, &primaries.blue.y);
whitePoint.Y =
primaries.red.Y = primaries.green.Y = primaries.blue.Y = 1.0;
double gammaOfFile;
png_get_gAMA(png_ptr, info_ptr, &gammaOfFile);
profile = qcms_profile_create_rgb_with_gamma(whitePoint, primaries,
1.0/gammaOfFile);
if (profile) {
png_set_gray_to_rgb(png_ptr);
}
}
if (profile) {
uint32_t profileSpace = qcms_profile_get_color_space(profile);
if (profileSpace == icSigGrayData) {
if (color_type & PNG_COLOR_MASK_ALPHA) {
*inType = QCMS_DATA_GRAYA_8;
} else {
*inType = QCMS_DATA_GRAY_8;
}
} else {
if (color_type & PNG_COLOR_MASK_ALPHA ||
png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)) {
*inType = QCMS_DATA_RGBA_8;
} else {
*inType = QCMS_DATA_RGB_8;
}
}
}
return profile;
}