Remove unnecessary HWUI host build customization (c22eb5b5) · Commits · e / os / android_frameworks_base

libs/hwui/Android.bp

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Original line number	Diff line number	Diff line
		@@ -638,14 +638,6 @@ cc_defaults {
		// Allow implicit fallthroughs in HardwareBitmapUploader.cpp until they are fixed.
		cflags: ["-Wno-implicit-fallthrough"],
		},
		host: {
		srcs: [
		"utils/HostColorSpace.cpp",
		],
		export_static_lib_headers: [
		"libarect",
		],
		},
		},
		}

libs/hwui/utils/HostColorSpace.cpp

deleted100644 → 0

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		/*
		* Copyright (C) 2019 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/
		// This is copied from framework/native/libs/ui in order not to include libui in host build

		#include <ui/ColorSpace.h>

		using namespace std::placeholders;

		namespace android {

		static constexpr float linearResponse(float v) {
		return v;
		}

		static constexpr float rcpResponse(float x, const ColorSpace::TransferParameters& p) {
		return x >= p.d * p.c ? (std::pow(x, 1.0f / p.g) - p.b) / p.a : x / p.c;
		}

		static constexpr float response(float x, const ColorSpace::TransferParameters& p) {
		return x >= p.d ? std::pow(p.a * x + p.b, p.g) : p.c * x;
		}

		static constexpr float rcpFullResponse(float x, const ColorSpace::TransferParameters& p) {
		return x >= p.d * p.c ? (std::pow(x - p.e, 1.0f / p.g) - p.b) / p.a : (x - p.f) / p.c;
		}

		static constexpr float fullResponse(float x, const ColorSpace::TransferParameters& p) {
		return x >= p.d ? std::pow(p.a * x + p.b, p.g) + p.e : p.c * x + p.f;
		}

		static float absRcpResponse(float x, float g,float a, float b, float c, float d) {
		float xx = std::abs(x);
		return std::copysign(xx >= d * c ? (std::pow(xx, 1.0f / g) - b) / a : xx / c, x);
		}

		static float absResponse(float x, float g, float a, float b, float c, float d) {
		float xx = std::abs(x);
		return std::copysign(xx >= d ? std::pow(a * xx + b, g) : c * xx, x);
		}

		static float safePow(float x, float e) {
		return powf(x < 0.0f ? 0.0f : x, e);
		}

		static ColorSpace::transfer_function toOETF(const ColorSpace::TransferParameters& parameters) {
		if (parameters.e == 0.0f && parameters.f == 0.0f) {
		return std::bind(rcpResponse, _1, parameters);
		}
		return std::bind(rcpFullResponse, _1, parameters);
		}

		static ColorSpace::transfer_function toEOTF( const ColorSpace::TransferParameters& parameters) {
		if (parameters.e == 0.0f && parameters.f == 0.0f) {
		return std::bind(response, _1, parameters);
		}
		return std::bind(fullResponse, _1, parameters);
		}

		static ColorSpace::transfer_function toOETF(float gamma) {
		if (gamma == 1.0f) {
		return linearResponse;
		}
		return std::bind(safePow, _1, 1.0f / gamma);
		}

		static ColorSpace::transfer_function toEOTF(float gamma) {
		if (gamma == 1.0f) {
		return linearResponse;
		}
		return std::bind(safePow, _1, gamma);
		}

		static constexpr std::array<float2, 3> computePrimaries(const mat3& rgbToXYZ) {
		float3 r(rgbToXYZ * float3{1, 0, 0});
		float3 g(rgbToXYZ * float3{0, 1, 0});
		float3 b(rgbToXYZ * float3{0, 0, 1});

		return {{r.xy / dot(r, float3{1}),
		g.xy / dot(g, float3{1}),
		b.xy / dot(b, float3{1})}};
		}

		static constexpr float2 computeWhitePoint(const mat3& rgbToXYZ) {
		float3 w(rgbToXYZ * float3{1});
		return w.xy / dot(w, float3{1});
		}

		ColorSpace::ColorSpace(
		const std::string& name,
		const mat3& rgbToXYZ,
		transfer_function OETF,
		transfer_function EOTF,
		clamping_function clamper) noexcept
		: mName(name)
		, mRGBtoXYZ(rgbToXYZ)
		, mXYZtoRGB(inverse(rgbToXYZ))
		, mOETF(std::move(OETF))
		, mEOTF(std::move(EOTF))
		, mClamper(std::move(clamper))
		, mPrimaries(computePrimaries(rgbToXYZ))
		, mWhitePoint(computeWhitePoint(rgbToXYZ)) {
		}

		ColorSpace::ColorSpace(
		const std::string& name,
		const mat3& rgbToXYZ,
		const TransferParameters parameters,
		clamping_function clamper) noexcept
		: mName(name)
		, mRGBtoXYZ(rgbToXYZ)
		, mXYZtoRGB(inverse(rgbToXYZ))
		, mParameters(parameters)
		, mOETF(toOETF(mParameters))
		, mEOTF(toEOTF(mParameters))
		, mClamper(std::move(clamper))
		, mPrimaries(computePrimaries(rgbToXYZ))
		, mWhitePoint(computeWhitePoint(rgbToXYZ)) {
		}

		ColorSpace::ColorSpace(
		const std::string& name,
		const mat3& rgbToXYZ,
		float gamma,
		clamping_function clamper) noexcept
		: mName(name)
		, mRGBtoXYZ(rgbToXYZ)
		, mXYZtoRGB(inverse(rgbToXYZ))
		, mParameters({gamma, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f})
		, mOETF(toOETF(gamma))
		, mEOTF(toEOTF(gamma))
		, mClamper(std::move(clamper))
		, mPrimaries(computePrimaries(rgbToXYZ))
		, mWhitePoint(computeWhitePoint(rgbToXYZ)) {
		}

		ColorSpace::ColorSpace(
		const std::string& name,
		const std::array<float2, 3>& primaries,
		const float2& whitePoint,
		transfer_function OETF,
		transfer_function EOTF,
		clamping_function clamper) noexcept
		: mName(name)
		, mRGBtoXYZ(computeXYZMatrix(primaries, whitePoint))
		, mXYZtoRGB(inverse(mRGBtoXYZ))
		, mOETF(std::move(OETF))
		, mEOTF(std::move(EOTF))
		, mClamper(std::move(clamper))
		, mPrimaries(primaries)
		, mWhitePoint(whitePoint) {
		}

		ColorSpace::ColorSpace(
		const std::string& name,
		const std::array<float2, 3>& primaries,
		const float2& whitePoint,
		const TransferParameters parameters,
		clamping_function clamper) noexcept
		: mName(name)
		, mRGBtoXYZ(computeXYZMatrix(primaries, whitePoint))
		, mXYZtoRGB(inverse(mRGBtoXYZ))
		, mParameters(parameters)
		, mOETF(toOETF(mParameters))
		, mEOTF(toEOTF(mParameters))
		, mClamper(std::move(clamper))
		, mPrimaries(primaries)
		, mWhitePoint(whitePoint) {
		}

		ColorSpace::ColorSpace(
		const std::string& name,
		const std::array<float2, 3>& primaries,
		const float2& whitePoint,
		float gamma,
		clamping_function clamper) noexcept
		: mName(name)
		, mRGBtoXYZ(computeXYZMatrix(primaries, whitePoint))
		, mXYZtoRGB(inverse(mRGBtoXYZ))
		, mParameters({gamma, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f})
		, mOETF(toOETF(gamma))
		, mEOTF(toEOTF(gamma))
		, mClamper(std::move(clamper))
		, mPrimaries(primaries)
		, mWhitePoint(whitePoint) {
		}

		constexpr mat3 ColorSpace::computeXYZMatrix(
		const std::array<float2, 3>& primaries, const float2& whitePoint) {
		const float2& R = primaries[0];
		const float2& G = primaries[1];
		const float2& B = primaries[2];
		const float2& W = whitePoint;

		float oneRxRy = (1 - R.x) / R.y;
		float oneGxGy = (1 - G.x) / G.y;
		float oneBxBy = (1 - B.x) / B.y;
		float oneWxWy = (1 - W.x) / W.y;

		float RxRy = R.x / R.y;
		float GxGy = G.x / G.y;
		float BxBy = B.x / B.y;
		float WxWy = W.x / W.y;

		float BY =
		((oneWxWy - oneRxRy) * (GxGy - RxRy) - (WxWy - RxRy) * (oneGxGy - oneRxRy)) /
		((oneBxBy - oneRxRy) * (GxGy - RxRy) - (BxBy - RxRy) * (oneGxGy - oneRxRy));
		float GY = (WxWy - RxRy - BY * (BxBy - RxRy)) / (GxGy - RxRy);
		float RY = 1 - GY - BY;

		float RYRy = RY / R.y;
		float GYGy = GY / G.y;
		float BYBy = BY / B.y;

		return {
		float3{RYRy * R.x, RY, RYRy * (1 - R.x - R.y)},
		float3{GYGy * G.x, GY, GYGy * (1 - G.x - G.y)},
		float3{BYBy * B.x, BY, BYBy * (1 - B.x - B.y)}
		};
		}

		const ColorSpace ColorSpace::sRGB() {
		return {
		"sRGB IEC61966-2.1",
		{{float2{0.640f, 0.330f}, {0.300f, 0.600f}, {0.150f, 0.060f}}},
		{0.3127f, 0.3290f},
		{2.4f, 1 / 1.055f, 0.055f / 1.055f, 1 / 12.92f, 0.04045f, 0.0f, 0.0f}
		};
		}

		const ColorSpace ColorSpace::linearSRGB() {
		return {
		"sRGB IEC61966-2.1 (Linear)",
		{{float2{0.640f, 0.330f}, {0.300f, 0.600f}, {0.150f, 0.060f}}},
		{0.3127f, 0.3290f}
		};
		}

		const ColorSpace ColorSpace::extendedSRGB() {
		return {
		"scRGB-nl IEC 61966-2-2:2003",
		{{float2{0.640f, 0.330f}, {0.300f, 0.600f}, {0.150f, 0.060f}}},
		{0.3127f, 0.3290f},
		std::bind(absRcpResponse, _1, 2.4f, 1 / 1.055f, 0.055f / 1.055f, 1 / 12.92f, 0.04045f),
		std::bind(absResponse, _1, 2.4f, 1 / 1.055f, 0.055f / 1.055f, 1 / 12.92f, 0.04045f),
		std::bind(clamp<float>, _1, -0.799f, 2.399f)
		};
		}

		const ColorSpace ColorSpace::linearExtendedSRGB() {
		return {
		"scRGB IEC 61966-2-2:2003",
		{{float2{0.640f, 0.330f}, {0.300f, 0.600f}, {0.150f, 0.060f}}},
		{0.3127f, 0.3290f},
		1.0f,
		std::bind(clamp<float>, _1, -0.5f, 7.499f)
		};
		}

		const ColorSpace ColorSpace::NTSC() {
		return {
		"NTSC (1953)",
		{{float2{0.67f, 0.33f}, {0.21f, 0.71f}, {0.14f, 0.08f}}},
		{0.310f, 0.316f},
		{1 / 0.45f, 1 / 1.099f, 0.099f / 1.099f, 1 / 4.5f, 0.081f, 0.0f, 0.0f}
		};
		}

		const ColorSpace ColorSpace::BT709() {
		return {
		"Rec. ITU-R BT.709-5",
		{{float2{0.640f, 0.330f}, {0.300f, 0.600f}, {0.150f, 0.060f}}},
		{0.3127f, 0.3290f},
		{1 / 0.45f, 1 / 1.099f, 0.099f / 1.099f, 1 / 4.5f, 0.081f, 0.0f, 0.0f}
		};
		}

		const ColorSpace ColorSpace::BT2020() {
		return {
		"Rec. ITU-R BT.2020-1",
		{{float2{0.708f, 0.292f}, {0.170f, 0.797f}, {0.131f, 0.046f}}},
		{0.3127f, 0.3290f},
		{1 / 0.45f, 1 / 1.099f, 0.099f / 1.099f, 1 / 4.5f, 0.081f, 0.0f, 0.0f}
		};
		}

		const ColorSpace ColorSpace::AdobeRGB() {
		return {
		"Adobe RGB (1998)",
		{{float2{0.64f, 0.33f}, {0.21f, 0.71f}, {0.15f, 0.06f}}},
		{0.3127f, 0.3290f},
		2.2f
		};
		}

		const ColorSpace ColorSpace::ProPhotoRGB() {
		return {
		"ROMM RGB ISO 22028-2:2013",
		{{float2{0.7347f, 0.2653f}, {0.1596f, 0.8404f}, {0.0366f, 0.0001f}}},
		{0.34567f, 0.35850f},
		{1.8f, 1.0f, 0.0f, 1 / 16.0f, 0.031248f, 0.0f, 0.0f}
		};
		}

		const ColorSpace ColorSpace::DisplayP3() {
		return {
		"Display P3",
		{{float2{0.680f, 0.320f}, {0.265f, 0.690f}, {0.150f, 0.060f}}},
		{0.3127f, 0.3290f},
		{2.4f, 1 / 1.055f, 0.055f / 1.055f, 1 / 12.92f, 0.039f, 0.0f, 0.0f}
		};
		}

		const ColorSpace ColorSpace::DCIP3() {
		return {
		"SMPTE RP 431-2-2007 DCI (P3)",
		{{float2{0.680f, 0.320f}, {0.265f, 0.690f}, {0.150f, 0.060f}}},
		{0.314f, 0.351f},
		2.6f
		};
		}

		const ColorSpace ColorSpace::ACES() {
		return {
		"SMPTE ST 2065-1:2012 ACES",
		{{float2{0.73470f, 0.26530f}, {0.0f, 1.0f}, {0.00010f, -0.0770f}}},
		{0.32168f, 0.33767f},
		1.0f,
		std::bind(clamp<float>, _1, -65504.0f, 65504.0f)
		};
		}

		const ColorSpace ColorSpace::ACEScg() {
		return {
		"Academy S-2014-004 ACEScg",
		{{float2{0.713f, 0.293f}, {0.165f, 0.830f}, {0.128f, 0.044f}}},
		{0.32168f, 0.33767f},
		1.0f,
		std::bind(clamp<float>, _1, -65504.0f, 65504.0f)
		};
		}

		std::unique_ptr<float3[]> ColorSpace::createLUT(uint32_t size, const ColorSpace& src,
		const ColorSpace& dst) {
		size = clamp(size, 2u, 256u);
		float m = 1.0f / float(size - 1);

		std::unique_ptr<float3[]> lut(new float3[size * size * size]);
		float3* data = lut.get();

		ColorSpaceConnector connector(src, dst);

		for (uint32_t z = 0; z < size; z++) {
		for (int32_t y = int32_t(size - 1); y >= 0; y--) {
		for (uint32_t x = 0; x < size; x++) {
		data++ = connector.transform({x m, y * m, z * m});
		}
		}
		}

		return lut;
		}

		static const float2 ILLUMINANT_D50_XY = {0.34567f, 0.35850f};
		static const float3 ILLUMINANT_D50_XYZ = {0.964212f, 1.0f, 0.825188f};
		static const mat3 BRADFORD = mat3{
		float3{ 0.8951f, -0.7502f, 0.0389f},
		float3{ 0.2664f, 1.7135f, -0.0685f},
		float3{-0.1614f, 0.0367f, 1.0296f}
		};

		static mat3 adaptation(const mat3& matrix, const float3& srcWhitePoint, const float3& dstWhitePoint) {
		float3 srcLMS = matrix * srcWhitePoint;
		float3 dstLMS = matrix * dstWhitePoint;
		return inverse(matrix) * mat3{dstLMS / srcLMS} * matrix;
		}

		ColorSpaceConnector::ColorSpaceConnector(
		const ColorSpace& src,
		const ColorSpace& dst) noexcept
		: mSource(src)
		, mDestination(dst) {

		if (all(lessThan(abs(src.getWhitePoint() - dst.getWhitePoint()), float2{1e-3f}))) {
		mTransform = dst.getXYZtoRGB() * src.getRGBtoXYZ();
		} else {
		mat3 rgbToXYZ(src.getRGBtoXYZ());
		mat3 xyzToRGB(dst.getXYZtoRGB());

		float3 srcXYZ = ColorSpace::XYZ(float3{src.getWhitePoint(), 1});
		float3 dstXYZ = ColorSpace::XYZ(float3{dst.getWhitePoint(), 1});

		if (any(greaterThan(abs(src.getWhitePoint() - ILLUMINANT_D50_XY), float2{1e-3f}))) {
		rgbToXYZ = adaptation(BRADFORD, srcXYZ, ILLUMINANT_D50_XYZ) * src.getRGBtoXYZ();
		}

		if (any(greaterThan(abs(dst.getWhitePoint() - ILLUMINANT_D50_XY), float2{1e-3f}))) {
		xyzToRGB = inverse(adaptation(BRADFORD, dstXYZ, ILLUMINANT_D50_XYZ) * dst.getRGBtoXYZ());
		}

		mTransform = xyzToRGB * rgbToXYZ;
		}
		}

		}; // namespace android