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Issue #2657 - Remove -moz-samplesize resize-decoding for low-vram mobiles

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Resolves #2657
This commit is contained in:
Moonchild 2024-11-20 14:10:10 +01:00 • committed by roytam1
commit ef5f052d97
18 changed files with 13 additions and 193 deletions
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17
image/decoders/nsJPEGDecoder.cpp
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@ -76,7 +76,6 @@ nsJPEGDecoder::nsJPEGDecoder(RasterImage* aImage,
SIZE_MAX),
Transition::TerminateSuccess())
, mDecodeStyle(aDecodeStyle)
, mSampleSize(0)
{
mState = JPEG_HEADER;
mReading = true;
@ -239,17 +238,8 @@ nsJPEGDecoder::ReadJPEGData(const char* aData, size_t aLength)
return Transition::ContinueUnbuffered(State::JPEG_DATA); // I/O suspension
}
// If we have a sample size specified for -moz-sample-size, use it.
if (mSampleSize > 0) {
mInfo.scale_num = 1;
mInfo.scale_denom = mSampleSize;
}
// Used to set up image size so arrays can be allocated
jpeg_calc_output_dimensions(&mInfo);
// Post our size to the superclass
PostSize(mInfo.output_width, mInfo.output_height,
PostSize(mInfo.image_width, mInfo.image_height,
ReadOrientationFromEXIF());
if (HasError()) {
// Setting the size led to an error.
@ -384,6 +374,9 @@ nsJPEGDecoder::ReadJPEGData(const char* aData, size_t aLength)
mInfo.buffered_image = mDecodeStyle == PROGRESSIVE &&
jpeg_has_multiple_scans(&mInfo);
/* Used to set up image size so arrays can be allocated */
jpeg_calc_output_dimensions(&mInfo);
MOZ_ASSERT(!mImageData, "Already have a buffer allocated?");
nsresult rv = AllocateFrame(OutputSize(), FullOutputFrame(),
SurfaceFormat::B8G8R8X8);
@ -409,7 +402,7 @@ nsJPEGDecoder::ReadJPEGData(const char* aData, size_t aLength)
MOZ_LOG(sJPEGDecoderAccountingLog, LogLevel::Debug,
(" JPEGDecoderAccounting: nsJPEGDecoder::"
"Write -- created image frame with %ux%u pixels",
mInfo.output_width, mInfo.output_height));
mInfo.image_width, mInfo.image_height));
mState = JPEG_START_DECOMPRESS;
MOZ_FALLTHROUGH; // to start decompressing.