upload android base code part1
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417
android/frameworks/base/libs/hwui/Texture.cpp
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417
android/frameworks/base/libs/hwui/Texture.cpp
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/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "Caches.h"
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#include "Texture.h"
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#include "utils/GLUtils.h"
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#include "utils/MathUtils.h"
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#include "utils/TraceUtils.h"
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#include <utils/Log.h>
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#include <math/mat4.h>
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#include <SkCanvas.h>
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namespace android {
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namespace uirenderer {
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// Number of bytes used by a texture in the given format
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static int bytesPerPixel(GLint glFormat) {
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switch (glFormat) {
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// The wrapped-texture case, usually means a SurfaceTexture
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case 0:
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return 0;
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case GL_LUMINANCE:
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case GL_ALPHA:
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return 1;
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case GL_SRGB8:
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case GL_RGB:
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return 3;
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case GL_SRGB8_ALPHA8:
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case GL_RGBA:
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return 4;
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case GL_RGBA16F:
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return 8;
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default:
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LOG_ALWAYS_FATAL("UNKNOWN FORMAT 0x%x", glFormat);
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}
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}
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void Texture::setWrapST(GLenum wrapS, GLenum wrapT, bool bindTexture, bool force) {
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if (force || wrapS != mWrapS || wrapT != mWrapT) {
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mWrapS = wrapS;
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mWrapT = wrapT;
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if (bindTexture) {
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mCaches.textureState().bindTexture(mTarget, mId);
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}
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glTexParameteri(mTarget, GL_TEXTURE_WRAP_S, wrapS);
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glTexParameteri(mTarget, GL_TEXTURE_WRAP_T, wrapT);
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}
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}
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void Texture::setFilterMinMag(GLenum min, GLenum mag, bool bindTexture, bool force) {
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if (force || min != mMinFilter || mag != mMagFilter) {
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mMinFilter = min;
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mMagFilter = mag;
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if (bindTexture) {
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mCaches.textureState().bindTexture(mTarget, mId);
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}
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if (mipMap && min == GL_LINEAR) min = GL_LINEAR_MIPMAP_LINEAR;
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glTexParameteri(mTarget, GL_TEXTURE_MIN_FILTER, min);
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glTexParameteri(mTarget, GL_TEXTURE_MAG_FILTER, mag);
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}
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}
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void Texture::deleteTexture() {
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mCaches.textureState().deleteTexture(mId);
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mId = 0;
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mTarget = GL_NONE;
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if (mEglImageHandle != EGL_NO_IMAGE_KHR) {
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EGLDisplay eglDisplayHandle = eglGetCurrentDisplay();
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eglDestroyImageKHR(eglDisplayHandle, mEglImageHandle);
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mEglImageHandle = EGL_NO_IMAGE_KHR;
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}
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}
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bool Texture::updateLayout(uint32_t width, uint32_t height, GLint internalFormat,
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GLint format, GLenum target) {
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if (mWidth == width
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&& mHeight == height
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&& mFormat == format
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&& mInternalFormat == internalFormat
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&& mTarget == target) {
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return false;
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}
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mWidth = width;
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mHeight = height;
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mFormat = format;
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mInternalFormat = internalFormat;
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mTarget = target;
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notifySizeChanged(mWidth * mHeight * bytesPerPixel(internalFormat));
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return true;
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}
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void Texture::resetCachedParams() {
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mWrapS = GL_REPEAT;
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mWrapT = GL_REPEAT;
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mMinFilter = GL_NEAREST_MIPMAP_LINEAR;
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mMagFilter = GL_LINEAR;
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}
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void Texture::upload(GLint internalFormat, uint32_t width, uint32_t height,
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GLenum format, GLenum type, const void* pixels) {
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GL_CHECKPOINT(MODERATE);
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// We don't have color space information, we assume the data is gamma encoded
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mIsLinear = false;
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bool needsAlloc = updateLayout(width, height, internalFormat, format, GL_TEXTURE_2D);
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if (!mId) {
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glGenTextures(1, &mId);
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needsAlloc = true;
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resetCachedParams();
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}
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mCaches.textureState().bindTexture(GL_TEXTURE_2D, mId);
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if (needsAlloc) {
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glTexImage2D(GL_TEXTURE_2D, 0, internalFormat, mWidth, mHeight, 0,
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format, type, pixels);
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} else if (pixels) {
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glTexSubImage2D(GL_TEXTURE_2D, 0, internalFormat, mWidth, mHeight, 0,
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format, type, pixels);
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}
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GL_CHECKPOINT(MODERATE);
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}
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void Texture::uploadHardwareBitmapToTexture(GraphicBuffer* buffer) {
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EGLDisplay eglDisplayHandle = eglGetCurrentDisplay();
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if (mEglImageHandle != EGL_NO_IMAGE_KHR) {
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eglDestroyImageKHR(eglDisplayHandle, mEglImageHandle);
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mEglImageHandle = EGL_NO_IMAGE_KHR;
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}
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mEglImageHandle = eglCreateImageKHR(eglDisplayHandle, EGL_NO_CONTEXT, EGL_NATIVE_BUFFER_ANDROID,
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buffer->getNativeBuffer(), 0);
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glEGLImageTargetTexture2DOES(GL_TEXTURE_EXTERNAL_OES, mEglImageHandle);
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}
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static void uploadToTexture(bool resize, GLint internalFormat, GLenum format, GLenum type,
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GLsizei stride, GLsizei bpp, GLsizei width, GLsizei height, const GLvoid * data) {
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const bool useStride = stride != width
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&& Caches::getInstance().extensions().hasUnpackRowLength();
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if ((stride == width) || useStride) {
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if (useStride) {
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glPixelStorei(GL_UNPACK_ROW_LENGTH, stride);
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}
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if (resize) {
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glTexImage2D(GL_TEXTURE_2D, 0, internalFormat, width, height, 0, format, type, data);
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} else {
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glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height, format, type, data);
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}
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if (useStride) {
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glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
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}
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} else {
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// With OpenGL ES 2.0 we need to copy the bitmap in a temporary buffer
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// if the stride doesn't match the width
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GLvoid * temp = (GLvoid *) malloc(width * height * bpp);
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if (!temp) return;
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uint8_t * pDst = (uint8_t *)temp;
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uint8_t * pSrc = (uint8_t *)data;
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for (GLsizei i = 0; i < height; i++) {
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memcpy(pDst, pSrc, width * bpp);
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pDst += width * bpp;
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pSrc += stride * bpp;
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}
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if (resize) {
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glTexImage2D(GL_TEXTURE_2D, 0, internalFormat, width, height, 0, format, type, temp);
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} else {
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glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height, format, type, temp);
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}
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free(temp);
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}
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}
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void Texture::colorTypeToGlFormatAndType(const Caches& caches, SkColorType colorType,
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bool needSRGB, GLint* outInternalFormat, GLint* outFormat, GLint* outType) {
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switch (colorType) {
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case kAlpha_8_SkColorType:
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*outFormat = GL_ALPHA;
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*outInternalFormat = GL_ALPHA;
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*outType = GL_UNSIGNED_BYTE;
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break;
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case kRGB_565_SkColorType:
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if (needSRGB) {
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// We would ideally use a GL_RGB/GL_SRGB8 texture but the
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// intermediate Skia bitmap needs to be ARGB_8888
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*outFormat = GL_RGBA;
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*outInternalFormat = caches.rgbaInternalFormat();
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*outType = GL_UNSIGNED_BYTE;
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} else {
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*outFormat = GL_RGB;
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*outInternalFormat = GL_RGB;
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*outType = GL_UNSIGNED_SHORT_5_6_5;
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}
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break;
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// ARGB_4444 is upconverted to RGBA_8888
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case kARGB_4444_SkColorType:
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case kN32_SkColorType:
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*outFormat = GL_RGBA;
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*outInternalFormat = caches.rgbaInternalFormat(needSRGB);
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*outType = GL_UNSIGNED_BYTE;
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break;
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case kGray_8_SkColorType:
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*outFormat = GL_LUMINANCE;
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*outInternalFormat = GL_LUMINANCE;
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*outType = GL_UNSIGNED_BYTE;
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break;
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case kRGBA_F16_SkColorType:
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if (caches.extensions().getMajorGlVersion() >= 3) {
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// This format is always linear
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*outFormat = GL_RGBA;
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*outInternalFormat = GL_RGBA16F;
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*outType = GL_HALF_FLOAT;
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} else {
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*outFormat = GL_RGBA;
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*outInternalFormat = caches.rgbaInternalFormat(true);
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*outType = GL_UNSIGNED_BYTE;
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}
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break;
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default:
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LOG_ALWAYS_FATAL("Unsupported bitmap colorType: %d", colorType);
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break;
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}
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}
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SkBitmap Texture::uploadToN32(const SkBitmap& bitmap, bool hasLinearBlending,
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sk_sp<SkColorSpace> sRGB) {
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SkBitmap rgbaBitmap;
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rgbaBitmap.allocPixels(SkImageInfo::MakeN32(bitmap.width(), bitmap.height(),
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bitmap.info().alphaType(), hasLinearBlending ? sRGB : nullptr));
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rgbaBitmap.eraseColor(0);
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if (bitmap.colorType() == kRGBA_F16_SkColorType) {
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// Drawing RGBA_F16 onto ARGB_8888 is not supported
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bitmap.readPixels(rgbaBitmap.info()
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.makeColorSpace(SkColorSpace::MakeSRGB()),
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rgbaBitmap.getPixels(), rgbaBitmap.rowBytes(), 0, 0);
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} else {
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SkCanvas canvas(rgbaBitmap);
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canvas.drawBitmap(bitmap, 0.0f, 0.0f, nullptr);
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}
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return rgbaBitmap;
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}
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bool Texture::hasUnsupportedColorType(const SkImageInfo& info, bool hasLinearBlending) {
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return info.colorType() == kARGB_4444_SkColorType
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|| (info.colorType() == kRGB_565_SkColorType
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&& hasLinearBlending
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&& info.colorSpace()->isSRGB())
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|| (info.colorType() == kRGBA_F16_SkColorType
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&& Caches::getInstance().extensions().getMajorGlVersion() < 3);
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}
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void Texture::upload(Bitmap& bitmap) {
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ATRACE_FORMAT("Upload %ux%u Texture", bitmap.width(), bitmap.height());
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// We could also enable mipmapping if both bitmap dimensions are powers
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// of 2 but we'd have to deal with size changes. Let's keep this simple
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const bool canMipMap = mCaches.extensions().hasNPot();
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// If the texture had mipmap enabled but not anymore,
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// force a glTexImage2D to discard the mipmap levels
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bool needsAlloc = canMipMap && mipMap && !bitmap.hasHardwareMipMap();
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bool setDefaultParams = false;
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if (!mId) {
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glGenTextures(1, &mId);
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needsAlloc = true;
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setDefaultParams = true;
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}
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bool hasLinearBlending = mCaches.extensions().hasLinearBlending();
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bool needSRGB = transferFunctionCloseToSRGB(bitmap.info().colorSpace());
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GLint internalFormat, format, type;
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colorTypeToGlFormatAndType(mCaches, bitmap.colorType(),
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needSRGB && hasLinearBlending, &internalFormat, &format, &type);
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// Some devices don't support GL_RGBA16F, so we need to compare the color type
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// and internal GL format to decide what to do with 16 bit bitmaps
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bool rgba16fNeedsConversion = bitmap.colorType() == kRGBA_F16_SkColorType
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&& internalFormat != GL_RGBA16F;
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// RGBA16F is always linear extended sRGB
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if (internalFormat == GL_RGBA16F) {
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mIsLinear = true;
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}
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mConnector.reset();
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// Alpha masks don't have color profiles
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// If an RGBA16F bitmap needs conversion, we know the target will be sRGB
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if (!mIsLinear && internalFormat != GL_ALPHA && !rgba16fNeedsConversion) {
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SkColorSpace* colorSpace = bitmap.info().colorSpace();
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// If the bitmap is sRGB we don't need conversion
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if (colorSpace != nullptr && !colorSpace->isSRGB()) {
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SkMatrix44 xyzMatrix(SkMatrix44::kUninitialized_Constructor);
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if (!colorSpace->toXYZD50(&xyzMatrix)) {
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ALOGW("Incompatible color space!");
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} else {
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SkColorSpaceTransferFn fn;
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if (!colorSpace->isNumericalTransferFn(&fn)) {
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ALOGW("Incompatible color space, no numerical transfer function!");
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} else {
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float data[16];
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xyzMatrix.asColMajorf(data);
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ColorSpace::TransferParameters p =
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{fn.fG, fn.fA, fn.fB, fn.fC, fn.fD, fn.fE, fn.fF};
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ColorSpace src("Unnamed", mat4f((const float*) &data[0]).upperLeft(), p);
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mConnector.reset(new ColorSpaceConnector(src, ColorSpace::sRGB()));
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// A non-sRGB color space might have a transfer function close enough to sRGB
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// that we can save shader instructions by using an sRGB sampler
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// This is only possible if we have hardware support for sRGB textures
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if (needSRGB && internalFormat == GL_RGBA
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&& mCaches.extensions().hasSRGB() && !bitmap.isHardware()) {
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internalFormat = GL_SRGB8_ALPHA8;
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}
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}
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}
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}
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}
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GLenum target = bitmap.isHardware() ? GL_TEXTURE_EXTERNAL_OES : GL_TEXTURE_2D;
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needsAlloc |= updateLayout(bitmap.width(), bitmap.height(), internalFormat, format, target);
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blend = !bitmap.isOpaque();
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mCaches.textureState().bindTexture(mTarget, mId);
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// TODO: Handle sRGB gray bitmaps
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if (CC_UNLIKELY(hasUnsupportedColorType(bitmap.info(), hasLinearBlending))) {
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SkBitmap skBitmap;
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bitmap.getSkBitmap(&skBitmap);
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sk_sp<SkColorSpace> sRGB = SkColorSpace::MakeSRGB();
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SkBitmap rgbaBitmap = uploadToN32(skBitmap, hasLinearBlending, std::move(sRGB));
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uploadToTexture(needsAlloc, internalFormat, format, type, rgbaBitmap.rowBytesAsPixels(),
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rgbaBitmap.bytesPerPixel(), rgbaBitmap.width(),
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rgbaBitmap.height(), rgbaBitmap.getPixels());
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} else if (bitmap.isHardware()) {
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uploadHardwareBitmapToTexture(bitmap.graphicBuffer());
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} else {
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uploadToTexture(needsAlloc, internalFormat, format, type, bitmap.rowBytesAsPixels(),
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bitmap.info().bytesPerPixel(), bitmap.width(), bitmap.height(), bitmap.pixels());
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}
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if (canMipMap) {
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mipMap = bitmap.hasHardwareMipMap();
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if (mipMap) {
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glGenerateMipmap(GL_TEXTURE_2D);
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}
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}
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if (setDefaultParams) {
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setFilter(GL_NEAREST);
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setWrap(GL_CLAMP_TO_EDGE);
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}
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}
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void Texture::wrap(GLuint id, uint32_t width, uint32_t height,
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GLint internalFormat, GLint format, GLenum target) {
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mId = id;
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mWidth = width;
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mHeight = height;
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mFormat = format;
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mInternalFormat = internalFormat;
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mTarget = target;
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mConnector.reset();
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// We're wrapping an existing texture, so don't double count this memory
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notifySizeChanged(0);
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}
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TransferFunctionType Texture::getTransferFunctionType() const {
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if (mConnector.get() != nullptr && mInternalFormat != GL_SRGB8_ALPHA8) {
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const ColorSpace::TransferParameters& p = mConnector->getSource().getTransferParameters();
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if (MathUtils::isZero(p.e) && MathUtils::isZero(p.f)) {
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if (MathUtils::areEqual(p.a, 1.0f) && MathUtils::isZero(p.b)
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&& MathUtils::isZero(p.c) && MathUtils::isZero(p.d)) {
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if (MathUtils::areEqual(p.g, 1.0f)) {
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return TransferFunctionType::None;
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}
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return TransferFunctionType::Gamma;
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}
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return TransferFunctionType::Limited;
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}
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return TransferFunctionType::Full;
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}
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return TransferFunctionType::None;
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}
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}; // namespace uirenderer
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}; // namespace android
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