From 47015ed0b7b6cf72d2a38d75401c97647d8c894f Mon Sep 17 00:00:00 2001 From: Ansariel Hiller Date: Wed, 25 Sep 2024 18:09:14 +0200 Subject: Fix memory leak in LLImageDimensionsInfo (#2679) --- indra/llimage/llimagedimensionsinfo.cpp | 20 +++++++++++--------- indra/llimage/llimagedimensionsinfo.h | 4 ++-- 2 files changed, 13 insertions(+), 11 deletions(-) (limited to 'indra/llimage') diff --git a/indra/llimage/llimagedimensionsinfo.cpp b/indra/llimage/llimagedimensionsinfo.cpp index d4efbcfad2..c896d60c85 100644 --- a/indra/llimage/llimagedimensionsinfo.cpp +++ b/indra/llimage/llimagedimensionsinfo.cpp @@ -75,7 +75,7 @@ bool LLImageDimensionsInfo::load(const std::string& src_filename,U32 codec) bool LLImageDimensionsInfo::getImageDimensionsBmp() { // Make sure the file is long enough. - const S32 DATA_LEN = 26; // BMP header (14) + DIB header size (4) + width (4) + height (4) + constexpr S32 DATA_LEN = 26; // BMP header (14) + DIB header size (4) + width (4) + height (4) if (!checkFileLength(DATA_LEN)) { LL_WARNS() << "Premature end of file" << LL_ENDL; @@ -105,7 +105,7 @@ bool LLImageDimensionsInfo::getImageDimensionsBmp() bool LLImageDimensionsInfo::getImageDimensionsTga() { - const S32 TGA_FILE_HEADER_SIZE = 12; + constexpr S32 TGA_FILE_HEADER_SIZE = 12; // Make sure the file is long enough. if (!checkFileLength(TGA_FILE_HEADER_SIZE + 1 /* width */ + 1 /* height */)) @@ -124,7 +124,7 @@ bool LLImageDimensionsInfo::getImageDimensionsTga() bool LLImageDimensionsInfo::getImageDimensionsPng() { - const S32 PNG_MAGIC_SIZE = 8; + constexpr S32 PNG_MAGIC_SIZE = 8; // Make sure the file is long enough. if (!checkFileLength(PNG_MAGIC_SIZE + 8 + sizeof(S32) * 2 /* width, height */)) @@ -134,7 +134,7 @@ bool LLImageDimensionsInfo::getImageDimensionsPng() } // Read PNG signature. - const U8 png_magic[PNG_MAGIC_SIZE] = {0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A}; + constexpr U8 png_magic[PNG_MAGIC_SIZE] = {0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A}; U8 signature[PNG_MAGIC_SIZE]; mInfile.read((void*)signature, PNG_MAGIC_SIZE); @@ -166,34 +166,36 @@ bool LLImageDimensionsInfo::getImageDimensionsJpeg() { sJpegErrorEncountered = false; clean(); - FILE *fp = LLFile::fopen(mSrcFilename, "rb"); - if (fp == NULL) + FILE* fp = LLFile::fopen(mSrcFilename, "rb"); + if (!fp) { setLastError("Unable to open file for reading", mSrcFilename); return false; } /* Make sure this is a JPEG file. */ - const size_t JPEG_MAGIC_SIZE = 2; - const U8 jpeg_magic[JPEG_MAGIC_SIZE] = {0xFF, 0xD8}; + constexpr size_t JPEG_MAGIC_SIZE = 2; + constexpr U8 jpeg_magic[JPEG_MAGIC_SIZE] = {0xFF, 0xD8}; U8 signature[JPEG_MAGIC_SIZE]; if (fread(signature, sizeof(signature), 1, fp) != 1) { LL_WARNS() << "Premature end of file" << LL_ENDL; + fclose(fp); return false; } if (memcmp(signature, jpeg_magic, JPEG_MAGIC_SIZE) != 0) { LL_WARNS() << "Not a JPEG" << LL_ENDL; mWarning = "texture_load_format_error"; + fclose(fp); return false; } fseek(fp, 0, SEEK_SET); // go back to start of the file /* Init jpeg */ jpeg_error_mgr jerr; - jpeg_decompress_struct cinfo; + jpeg_decompress_struct cinfo{}; cinfo.err = jpeg_std_error(&jerr); // Call our function instead of exit() if Libjpeg encounters an error. // This is done to avoid crash in this case (STORM-472). diff --git a/indra/llimage/llimagedimensionsinfo.h b/indra/llimage/llimagedimensionsinfo.h index 681d66ae4e..4870f2e815 100644 --- a/indra/llimage/llimagedimensionsinfo.h +++ b/indra/llimage/llimagedimensionsinfo.h @@ -38,7 +38,7 @@ class LLImageDimensionsInfo { public: LLImageDimensionsInfo(): - mData(NULL) + mData(nullptr) ,mHeight(0) ,mWidth(0) {} @@ -67,7 +67,7 @@ protected: { mInfile.close(); delete[] mData; - mData = NULL; + mData = nullptr; mWidth = 0; mHeight = 0; } -- cgit v1.2.3 From ac5d59b9392dbd107ff6e8ac05ab8a3cd48fd694 Mon Sep 17 00:00:00 2001 From: TommyTheTerrible <81168766+TommyTheTerrible@users.noreply.github.com> Date: Mon, 5 May 2025 03:00:36 -0400 Subject: calcDataSizeJ2C Adjust curve for more than 6 layers (#4018, #4020) KDU is uploading 2k files with 7 and 8 layers which is shifting the location of discard 1 and 2. To accommodate, this commit adds a max_layer check based on max_dimension and the MAX_BLOCK_SIZE to allow the extra layers for 2k. Also shifted the starting size to the MIN_LAYER_SIZE instead of MAX_BLOCK_SIZE's area to allow smaller files to be decoded at discard 5 completely. Finally able to walk around Fantasy Faire without any gray blobs! --- indra/llimage/llimagej2c.cpp | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'indra/llimage') diff --git a/indra/llimage/llimagej2c.cpp b/indra/llimage/llimagej2c.cpp index aa161709a1..5a941dc958 100644 --- a/indra/llimage/llimagej2c.cpp +++ b/indra/llimage/llimagej2c.cpp @@ -281,10 +281,11 @@ S32 LLImageJ2C::calcDataSizeJ2C(S32 w, S32 h, S32 comp, S32 discard_level, F32 r S32 height = (h > 0) ? h : 2048; S32 max_dimension = llmax(width, height); // Find largest dimension S32 block_area = MAX_BLOCK_SIZE * MAX_BLOCK_SIZE; // Calculated initial block area from established max block size (currently 64) - block_area *= llmax((max_dimension / MAX_BLOCK_SIZE / max_components), 1); // Adjust initial block area by ratio of largest dimension to block size per component - S32 totalbytes = (S32) (block_area * max_components * precision); // First block layer computed before loop without compression rate - S32 block_layers = 1; // Start at layer 1 since first block layer is computed outside loop - while (block_layers < 6) // Walk five layers for the five discards in JPEG2000 + S32 max_layers = (S32)llmax(llround(log2f((float)max_dimension) - log2f((float)MAX_BLOCK_SIZE)), 4); // Find number of powers of two between extents and block size to a minimum of 4 + block_area *= llmax(max_layers, 1); // Adjust initial block area by max number of layers + S32 totalbytes = (S32) (MIN_LAYER_SIZE * max_components * precision); // Start estimation with a minimum reasonable size + S32 block_layers = 0; + while (block_layers <= max_layers) // Walk the layers { if (block_layers <= (5 - discard_level)) // Walk backwards from discard 5 to required discard layer. totalbytes += (S32) (block_area * max_components * precision * rate); // Add each block layer reduced by assumed compression rate -- cgit v1.2.3