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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "gfxMacUtils.h"
#include <CoreVideo/CoreVideo.h>
/* static */ CFStringRef gfxMacUtils::CFStringForTransferFunction(
mozilla::gfx::TransferFunction aTransferFunction) {
#if !defined(MAC_OS_VERSION_10_13) || \
MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_VERSION_10_13
CFStringRef kCVImageBufferTransferFunction_sRGB = CFSTR("IEC_sRGB");
CFStringRef kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ =
CFSTR("SMPTE_ST_2084_PQ");
CFStringRef kCVImageBufferTransferFunction_ITU_R_2100_HLG =
CFSTR("ITU_R_2100_HLG");
#endif
switch (aTransferFunction) {
case mozilla::gfx::TransferFunction::BT709:
return kCVImageBufferTransferFunction_ITU_R_709_2;
case mozilla::gfx::TransferFunction::SRGB:
return kCVImageBufferTransferFunction_sRGB;
case mozilla::gfx::TransferFunction::PQ:
return kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ;
case mozilla::gfx::TransferFunction::HLG:
return kCVImageBufferTransferFunction_ITU_R_2100_HLG;
default:
MOZ_ASSERT_UNREACHABLE("Unknown TransferFunction.");
return kCVImageBufferTransferFunction_ITU_R_709_2;
}
}
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