| /* |
| * Copyright (C) 2021 Sony Interactive Entertainment Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "JPEGXLImageDecoder.h" |
| |
| #if USE(JPEGXL) |
| |
| namespace WebCore { |
| |
| JPEGXLImageDecoder::JPEGXLImageDecoder(AlphaOption alphaOption, GammaAndColorProfileOption gammaAndColorProfileOption) |
| : ScalableImageDecoder(alphaOption, gammaAndColorProfileOption) |
| { |
| } |
| |
| JPEGXLImageDecoder::~JPEGXLImageDecoder() |
| { |
| clear(); |
| } |
| |
| ScalableImageDecoderFrame* JPEGXLImageDecoder::frameBufferAtIndex(size_t index) |
| { |
| // TODO: To support animated JPEG XL in the future we need to handle second and subsequent frames. |
| if (index) |
| return nullptr; |
| |
| if (m_frameBufferCache.isEmpty()) |
| m_frameBufferCache.grow(1); |
| |
| auto& frame = m_frameBufferCache[0]; |
| if (!frame.isComplete()) |
| decode(false, isAllDataReceived()); |
| return &frame; |
| } |
| |
| void JPEGXLImageDecoder::clear() |
| { |
| m_decoder.reset(); |
| m_readOffset = 0; |
| } |
| |
| bool JPEGXLImageDecoder::setFailed() |
| { |
| clear(); |
| return ScalableImageDecoder::setFailed(); |
| } |
| |
| void JPEGXLImageDecoder::decode(bool onlySize, bool allDataReceived) |
| { |
| if (failed()) |
| return; |
| |
| if (!m_decoder) { |
| clear(); |
| m_decoder = JxlDecoderMake(nullptr); |
| if (!m_decoder) { |
| setFailed(); |
| return; |
| } |
| |
| if (JxlDecoderSubscribeEvents(m_decoder.get(), JXL_DEC_BASIC_INFO | JXL_DEC_FRAME | JXL_DEC_FULL_IMAGE) != JXL_DEC_SUCCESS) { |
| setFailed(); |
| return; |
| } |
| } |
| |
| m_data->data(); |
| size_t dataSize = m_data->size(); |
| if (JxlDecoderSetInput(m_decoder.get(), m_data->data() + m_readOffset, dataSize - m_readOffset) != JXL_DEC_SUCCESS) { |
| setFailed(); |
| return; |
| } |
| |
| JxlDecoderStatus status = processInput(onlySize); |
| // We set the status as failed if the decoder reports an error or requires more data while all data has been received. |
| if (status == JXL_DEC_ERROR || (allDataReceived && status == JXL_DEC_NEED_MORE_INPUT)) { |
| setFailed(); |
| return; |
| } |
| |
| // We release the decoder when we finish the decoding. |
| if (status == JXL_DEC_SUCCESS) { |
| clear(); |
| return; |
| } |
| |
| // Otherwise we get the decoder ready for subsequent data. |
| size_t remainingDataSize = JxlDecoderReleaseInput(m_decoder.get()); |
| m_readOffset = dataSize - remainingDataSize; |
| } |
| |
| JxlDecoderStatus JPEGXLImageDecoder::processInput(bool onlySize) |
| { |
| while (true) { |
| auto status = JxlDecoderProcessInput(m_decoder.get()); |
| |
| // JXL_DEC_ERROR and JXL_DEC_SUCCESS are terminal states. We also exit from the loop if more data is needed. |
| if (status == JXL_DEC_ERROR || status == JXL_DEC_SUCCESS || status == JXL_DEC_NEED_MORE_INPUT) |
| return status; |
| |
| if (status == JXL_DEC_BASIC_INFO) { |
| JxlBasicInfo basicInfo; |
| if (JxlDecoderGetBasicInfo(m_decoder.get(), &basicInfo) != JXL_DEC_SUCCESS) |
| return JXL_DEC_ERROR; |
| |
| setSize(IntSize(basicInfo.xsize, basicInfo.ysize)); |
| if (onlySize) |
| return status; |
| continue; |
| } |
| |
| if (status == JXL_DEC_FRAME) { |
| JxlPixelFormat format { 4, JXL_TYPE_UINT8, JXL_NATIVE_ENDIAN, 0 }; |
| if (JxlDecoderSetImageOutCallback(m_decoder.get(), &format, imageOutCallback, this) != JXL_DEC_SUCCESS) |
| return JXL_DEC_ERROR; |
| continue; |
| } |
| |
| if (status == JXL_DEC_FULL_IMAGE) { |
| if (m_frameBufferCache.isEmpty()) |
| continue; |
| |
| auto& buffer = m_frameBufferCache[0]; |
| if (!buffer.isInvalid()) |
| buffer.setDecodingStatus(DecodingStatus::Complete); |
| |
| // TODO: To support animated JPEG XL in the future we need to handle subsequent data. |
| return JXL_DEC_SUCCESS; |
| } |
| } |
| } |
| |
| void JPEGXLImageDecoder::imageOutCallback(void* that, size_t x, size_t y, size_t numPixels, const void* pixels) |
| { |
| static_cast<JPEGXLImageDecoder*>(that)->imageOut(x, y, numPixels, static_cast<const uint8_t*>(pixels)); |
| } |
| |
| void JPEGXLImageDecoder::imageOut(size_t x, size_t y, size_t numPixels, const uint8_t* pixels) |
| { |
| if (m_frameBufferCache.isEmpty()) |
| return; |
| |
| auto& buffer = m_frameBufferCache[0]; |
| if (buffer.isInvalid()) { |
| if (!buffer.initialize(size(), m_premultiplyAlpha)) |
| return; |
| |
| buffer.setDecodingStatus(DecodingStatus::Partial); |
| buffer.setHasAlpha(false); |
| } |
| |
| uint32_t* row = buffer.backingStore()->pixelAt(x, y); |
| uint32_t* currentAddress = row; |
| for (size_t i = 0; i < numPixels; i++) { |
| uint8_t r = *pixels++; |
| uint8_t g = *pixels++; |
| uint8_t b = *pixels++; |
| uint8_t a = *pixels++; |
| buffer.backingStore()->setPixel(currentAddress++, r, g, b, a); |
| } |
| } |
| |
| } |
| #endif // USE(JPEGXL) |