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From 3c05eacda70e3ac00ca45287aa4c8de7262a0673 Mon Sep 17 00:00:00 2001
From: peterhillman <peterh@wetafx.co.nz>
Date: Tue, 8 Sep 2020 10:03:03 +1200
Subject: [PATCH] Address issues reported by Undefined Behavior Sanitizer
running IlmImfTest (#828)
* add join() to IlmThread for avoiding use-after-free race condition
Signed-off-by: Peter Hillman <peterh@wetafx.co.nz>
* Use intptr_t in pointer math with negatives (pointer overflow behavior undefined)
Signed-off-by: Peter Hillman <peterh@wetafx.co.nz>
* fix undefined behavior reading non-aligned 32/64 bit ints
Signed-off-by: Peter Hillman <peterh@wetafx.co.nz>
* fix undefined behavior warnings in IlmImfTest
Signed-off-by: Peter Hillman <peterh@wetafx.co.nz>
* cleaner pointer casting/typo fix
Signed-off-by: Peter Hillman <peterh@wetafx.co.nz>
---
IlmImf/ImfCompositeDeepScanLine.cpp | 9 +++---
IlmImf/ImfDeepScanLineInputFile.cpp | 28 +++++++++++++----
IlmImf/ImfDeepScanLineOutputFile.cpp | 30 +++++++++++++++++--
IlmImf/ImfFrameBuffer.cpp | 4 +--
IlmImf/ImfInputFile.cpp | 13 ++++----
IlmImf/ImfMisc.cpp | 9 ++++--
IlmImf/ImfOutputFile.cpp | 15 ++++++----
IlmImf/ImfRgbaFile.cpp | 24 ++++++++++-----
IlmImf/ImfScanLineInputFile.cpp | 19 +++++++-----
IlmImf/ImfTiledInputFile.cpp | 5 ++--
IlmImf/ImfTiledOutputFile.cpp | 5 ++--
IlmImf/ImfTiledRgbaFile.cpp | 13 ++++++--
.../IlmImfTest/testCompositeDeepScanLine.cpp | 3 +-
IlmImfTest/testDwaCompressorSimd.cpp | 3 +-
IlmImfTest/testMultiPartApi.cpp | 15 ++--------
IlmImfTest/testMultiPartThreading.cpp | 16 ++--------
.../testOptimizedInterleavePatterns.cpp | 12 ++++++--
IlmImfTest/testPreviewImage.cpp | 2 +-
IlmImfTest/testSharedFrameBuffer.cpp | 23 ++++++++------
25 files changed, 207 insertions(+), 93 deletions(-)
diff --git a/IlmImf/ImfCompositeDeepScanLine.cpp b/IlmImf/ImfCompositeDeepScanLine.cpp
index fac7fc432..1572c069e 100644
--- a/IlmImf/ImfCompositeDeepScanLine.cpp
+++ b/IlmImf/ImfCompositeDeepScanLine.cpp
@@ -323,7 +323,6 @@ class LineCompositeTask : public Task
};
-
void
composite_line(int y,
int start,
@@ -386,16 +385,18 @@ composite_line(int y,
{
float value = output_pixel[ _Data->_bufferMap[channel_number] ]; // value to write
-
+ intptr_t base = reinterpret_cast<intptr_t>(it.slice().base);
// cast to half float if necessary
if(it.slice().type==OPENEXR_IMF_INTERNAL_NAMESPACE::FLOAT)
{
- * (float *)(it.slice().base + y*it.slice().yStride + x*it.slice().xStride) = value;
+ float* ptr = reinterpret_cast<float*>(base + y*it.slice().yStride + x*it.slice().xStride);
+ *ptr = value;
}
else if(it.slice().type==HALF)
{
- * (half *)(it.slice().base + y*it.slice().yStride + x*it.slice().xStride) = half(value);
+ half* ptr = reinterpret_cast<half*>(base + y*it.slice().yStride + x*it.slice().xStride);
+ *ptr = half(value);
}
channel_number++;
diff --git a/IlmImf/ImfDeepScanLineInputFile.cpp b/IlmImf/ImfDeepScanLineInputFile.cpp
index 0844d2349..c39bd225a 100644
--- a/IlmImf/ImfDeepScanLineInputFile.cpp
+++ b/IlmImf/ImfDeepScanLineInputFile.cpp
@@ -1425,6 +1425,20 @@ DeepScanLineInputFile::readPixels (int scanLine)
}
+namespace
+{
+struct I64Bytes
+{
+ uint8_t b[8];
+};
+
+
+union bytesOrInt64
+{
+ I64Bytes b;
+ Int64 i;
+};
+}
void
DeepScanLineInputFile::rawPixelData (int firstScanLine,
char *pixelData,
@@ -1507,12 +1521,16 @@ DeepScanLineInputFile::rawPixelData (int firstScanLine,
// copy the values we have read into the output block
*(int *) pixelData = yInFile;
- *(Int64 *) (pixelData+4) =sampleCountTableSize;
- *(Int64 *) (pixelData+12) = packedDataSize;
-
+ bytesOrInt64 tmp;
+ tmp.i=sampleCountTableSize;
+ memcpy(pixelData+4,&tmp.b,8);
+ tmp.i = packedDataSize;
+ memcpy(pixelData+12,&tmp.b,8);
+
// didn't read the unpackedsize - do that now
- Xdr::read<StreamIO> (*_data->_streamData->is, *(Int64 *) (pixelData+20));
-
+ Xdr::read<StreamIO> (*_data->_streamData->is,tmp.i);
+ memcpy(pixelData+20,&tmp.b,8);
+
// read the actual data
_data->_streamData->is->read(pixelData+28, sampleCountTableSize+packedDataSize);
diff --git a/IlmImf/ImfDeepScanLineOutputFile.cpp b/IlmImf/ImfDeepScanLineOutputFile.cpp
index 6e302440b..d455df9e9 100644
--- a/IlmImf/ImfDeepScanLineOutputFile.cpp
+++ b/IlmImf/ImfDeepScanLineOutputFile.cpp
@@ -1411,6 +1411,23 @@ DeepScanLineOutputFile::copyPixels (DeepScanLineInputPart &in)
copyPixels(*in.file);
}
+
+// helper structure to read Int64 from non 8 byte aligned addresses
+namespace
+{
+struct I64Bytes
+{
+ uint8_t b[8];
+};
+
+
+union bytesOrInt64
+{
+ I64Bytes b;
+ Int64 i;
+};
+}
+
void
DeepScanLineOutputFile::copyPixels (DeepScanLineInputFile &in)
{
@@ -1487,9 +1504,16 @@ DeepScanLineOutputFile::copyPixels (DeepScanLineInputFile &in)
// extract header from block to pass to writePixelData
- Int64 packedSampleCountSize = *(Int64 *) (&data[4]);
- Int64 packedDataSize = *(Int64 *) (&data[12]);
- Int64 unpackedDataSize = *(Int64 *) (&data[20]);
+ bytesOrInt64 tmp;
+ memcpy(&tmp.b,&data[4],8);
+ Int64 packedSampleCountSize = tmp.i;
+
+ memcpy(&tmp.b,&data[12],8);
+ Int64 packedDataSize = tmp.i;
+
+ memcpy(&tmp.b,&data[20],8);
+ Int64 unpackedDataSize = tmp.i;
+
const char * sampleCountTable = &data[0]+28;
const char * pixelData = sampleCountTable + packedSampleCountSize;
diff --git a/IlmImf/ImfFrameBuffer.cpp b/IlmImf/ImfFrameBuffer.cpp
index a11ab4e63..a6b26b2a4 100644
--- a/IlmImf/ImfFrameBuffer.cpp
+++ b/IlmImf/ImfFrameBuffer.cpp
@@ -89,7 +89,7 @@ Slice::Make (
bool xTileCoords,
bool yTileCoords)
{
- char* base = reinterpret_cast<char*> (const_cast<void *> (ptr));
+ intptr_t base = reinterpret_cast<intptr_t> (const_cast<void *> (ptr));
if (xStride == 0)
{
switch (type)
@@ -117,7 +117,7 @@ Slice::Make (
return Slice (
type,
- base - offx - offy,
+ reinterpret_cast<char*>(base - offx - offy),
xStride,
yStride,
xSampling,
diff --git a/IlmImf/ImfInputFile.cpp b/IlmImf/ImfInputFile.cpp
index 8695c65bf..6bcb451ec 100644
--- a/IlmImf/ImfInputFile.cpp
+++ b/IlmImf/ImfInputFile.cpp
@@ -308,6 +308,10 @@ bufferedReadPixels (InputFile::Data* ifd, int scanLine1, int scanLine2)
while (modp (yStart, toSlice.ySampling) != 0)
++yStart;
+
+ intptr_t fromBase = reinterpret_cast<intptr_t>(fromSlice.base);
+ intptr_t toBase = reinterpret_cast<intptr_t>(toSlice.base);
+
for (int y = yStart;
y <= maxYThisRow;
y += toSlice.ySampling)
@@ -316,14 +320,13 @@ bufferedReadPixels (InputFile::Data* ifd, int scanLine1, int scanLine2)
// Set the pointers to the start of the y scanline in
// this row of tiles
//
-
- fromPtr = fromSlice.base +
+ fromPtr = reinterpret_cast<char*> (fromBase +
(y - tileRange.min.y) * fromSlice.yStride +
- xStart * fromSlice.xStride;
+ xStart * fromSlice.xStride);
- toPtr = toSlice.base +
+ toPtr = reinterpret_cast<char*> (toBase +
divp (y, toSlice.ySampling) * toSlice.yStride +
- divp (xStart, toSlice.xSampling) * toSlice.xStride;
+ divp (xStart, toSlice.xSampling) * toSlice.xStride);
//
// Copy all pixels for the scanline in this row of tiles
diff --git a/IlmImf/ImfMisc.cpp b/IlmImf/ImfMisc.cpp
index b397b9f98..bae4622b7 100644
--- a/IlmImf/ImfMisc.cpp
+++ b/IlmImf/ImfMisc.cpp
@@ -1390,9 +1390,10 @@ namespace
//
struct FBytes { uint8_t b[4]; };
-union bytesOrFloat {
+union bytesUintOrFloat {
FBytes b;
float f;
+ unsigned int u;
} ;
}
@@ -1408,7 +1409,9 @@ convertInPlace (char *& writePtr,
for (size_t j = 0; j < numPixels; ++j)
{
- Xdr::write <CharPtrIO> (writePtr, *(const unsigned int *) readPtr);
+ union bytesUintOrFloat tmp;
+ tmp.b = * reinterpret_cast<const FBytes *>( readPtr );
+ Xdr::write <CharPtrIO> (writePtr, tmp.u);
readPtr += sizeof(unsigned int);
}
break;
@@ -1426,7 +1429,7 @@ convertInPlace (char *& writePtr,
for (size_t j = 0; j < numPixels; ++j)
{
- union bytesOrFloat tmp;
+ union bytesUintOrFloat tmp;
tmp.b = * reinterpret_cast<const FBytes *>( readPtr );
Xdr::write <CharPtrIO> (writePtr, tmp.f);
readPtr += sizeof(float);
diff --git a/IlmImf/ImfOutputFile.cpp b/IlmImf/ImfOutputFile.cpp
index d0e34988e..899303ea6 100644
--- a/IlmImf/ImfOutputFile.cpp
+++ b/IlmImf/ImfOutputFile.cpp
@@ -558,13 +558,18 @@ LineBufferTask::execute ()
// If necessary, convert the pixel data to Xdr format.
// Then store the pixel data in _ofd->lineBuffer.
//
-
- const char *linePtr = slice.base +
- divp (y, slice.ySampling) *
+ // slice.base may be 'negative' but
+ // pointer arithmetic is not allowed to overflow, so
+ // perform computation with the non-pointer 'intptr_t' instead
+ //
+ intptr_t base = reinterpret_cast<intptr_t>(slice.base);
+ intptr_t linePtr = base + divp (y, slice.ySampling) *
slice.yStride;
- const char *readPtr = linePtr + dMinX * slice.xStride;
- const char *endPtr = linePtr + dMaxX * slice.xStride;
+ const char *readPtr = reinterpret_cast<const char*>(linePtr +
+ dMinX * slice.xStride);
+ const char *endPtr = reinterpret_cast<const char*>(linePtr +
+ dMaxX * slice.xStride);
copyFromFrameBuffer (writePtr, readPtr, endPtr,
slice.xStride, _ofd->format,
diff --git a/IlmImf/ImfRgbaFile.cpp b/IlmImf/ImfRgbaFile.cpp
index 68fa51cb5..9e781abeb 100644
--- a/IlmImf/ImfRgbaFile.cpp
+++ b/IlmImf/ImfRgbaFile.cpp
@@ -369,6 +369,7 @@ RgbaOutputFile::ToYca::writePixels (int numScanLines)
"\"" << _outputFile.fileName() << "\".");
}
+ intptr_t base = reinterpret_cast<intptr_t>(_fbBase);
if (_writeY && !_writeC)
{
//
@@ -385,8 +386,9 @@ RgbaOutputFile::ToYca::writePixels (int numScanLines)
for (int j = 0; j < _width; ++j)
{
- _tmpBuf[j] = _fbBase[_fbYStride * _currentScanLine +
- _fbXStride * (j + _xMin)];
+ _tmpBuf[j] = *reinterpret_cast<Rgba*>(base + sizeof(Rgba)*
+ (_fbYStride * _currentScanLine +
+ _fbXStride * (j + _xMin)));
}
//
@@ -418,10 +420,13 @@ RgbaOutputFile::ToYca::writePixels (int numScanLines)
// frame buffer into _tmpBuf.
//
+ intptr_t base = reinterpret_cast<intptr_t>(_fbBase);
+
for (int j = 0; j < _width; ++j)
{
- _tmpBuf[j + N2] = _fbBase[_fbYStride * _currentScanLine +
- _fbXStride * (j + _xMin)];
+ const Rgba* ptr = reinterpret_cast<const Rgba*>(base+sizeof(Rgba)*
+ (_fbYStride * _currentScanLine + _fbXStride * (j + _xMin)) );
+ _tmpBuf[j + N2] = *ptr;
}
//
@@ -1081,9 +1086,13 @@ RgbaInputFile::FromYca::readPixels (int scanLine)
fixSaturation (_yw, _width, _buf2, _tmpBuf);
- for (int i = 0; i < _width; ++i)
- _fbBase[_fbYStride * scanLine + _fbXStride * (i + _xMin)] = _tmpBuf[i];
+ intptr_t base = reinterpret_cast<intptr_t>(_fbBase);
+ for (int i = 0; i < _width; ++i)
+ {
+ Rgba* ptr = reinterpret_cast<Rgba*>(base + sizeof(Rgba)*(_fbYStride * scanLine + _fbXStride * (i + _xMin)));
+ *ptr = _tmpBuf[i];
+ }
_currentScanLine = scanLine;
}
@@ -1335,10 +1344,11 @@ RgbaInputFile::readPixels (int scanLine1, int scanLine2)
//
const Slice* s = _inputFile->frameBuffer().findSlice(_channelNamePrefix + "Y");
Box2i dataWindow = _inputFile->header().dataWindow();
+ intptr_t base = reinterpret_cast<intptr_t>(s->base);
for( int scanLine = scanLine1 ; scanLine <= scanLine2 ; scanLine++ )
{
- char* rowBase = s->base + scanLine*s->yStride;
+ intptr_t rowBase = base + scanLine*s->yStride;
for(int x = dataWindow.min.x ; x <= dataWindow.max.x ; ++x )
{
Rgba* pixel = reinterpret_cast<Rgba*>(rowBase+x*s->xStride);
diff --git a/IlmImf/ImfScanLineInputFile.cpp b/IlmImf/ImfScanLineInputFile.cpp
index b020cb9bb..a0e9a3678 100644
--- a/IlmImf/ImfScanLineInputFile.cpp
+++ b/IlmImf/ImfScanLineInputFile.cpp
@@ -636,12 +636,14 @@ LineBufferTask::execute ()
// The frame buffer contains a slice for this channel.
//
- char *linePtr = slice.base +
+ intptr_t base = reinterpret_cast<intptr_t>(slice.base);
+
+ intptr_t linePtr = base +
intptr_t( divp (y, slice.ySampling) ) *
intptr_t( slice.yStride );
- char *writePtr = linePtr + intptr_t( dMinX ) * intptr_t( slice.xStride );
- char *endPtr = linePtr + intptr_t( dMaxX ) * intptr_t( slice.xStride );
+ char *writePtr = reinterpret_cast<char*> (linePtr + intptr_t( dMinX ) * intptr_t( slice.xStride ));
+ char *endPtr = reinterpret_cast<char*> (linePtr + intptr_t( dMaxX ) * intptr_t( slice.xStride ));
copyIntoFrameBuffer (readPtr, writePtr, endPtr,
slice.xStride, slice.fill,
@@ -794,20 +796,21 @@ void LineBufferTaskIIF::getWritePointer
outWritePointerRight = 0;
}
- const char* linePtr1 = firstSlice.base +
+ intptr_t base = reinterpret_cast<intptr_t>(firstSlice.base);
+
+ intptr_t linePtr1 = (base +
divp (y, firstSlice.ySampling) *
- firstSlice.yStride;
+ firstSlice.yStride);
int dMinX1 = divp (_ifd->minX, firstSlice.xSampling);
int dMaxX1 = divp (_ifd->maxX, firstSlice.xSampling);
// Construct the writePtr so that we start writing at
// linePtr + Min offset in the line.
- outWritePointerRight = (unsigned short*)(linePtr1 +
+ outWritePointerRight = reinterpret_cast<unsigned short*>(linePtr1 +
dMinX1 * firstSlice.xStride );
- size_t bytesToCopy = ((linePtr1 + dMaxX1 * firstSlice.xStride ) -
- (linePtr1 + dMinX1 * firstSlice.xStride )) + 2;
+ size_t bytesToCopy = ((dMaxX1 * firstSlice.xStride ) - (dMinX1 * firstSlice.xStride )) + 2;
size_t shortsToCopy = bytesToCopy / sizeOfSingleValue;
size_t pixelsToCopy = (shortsToCopy / nbSlicesInBank ) + 1;
diff --git a/IlmImf/ImfTiledInputFile.cpp b/IlmImf/ImfTiledInputFile.cpp
index 3e7fda333..95edba917 100644
--- a/IlmImf/ImfTiledInputFile.cpp
+++ b/IlmImf/ImfTiledInputFile.cpp
@@ -609,10 +609,11 @@ TileBufferTask::execute ()
// The frame buffer contains a slice for this channel.
//
- char *writePtr = slice.base +
+ intptr_t base = reinterpret_cast<intptr_t>(slice.base);
+ char *writePtr = reinterpret_cast<char*>(base +
(y - yOffset) * slice.yStride +
(tileRange.min.x - xOffset) *
- slice.xStride;
+ slice.xStride);
char *endPtr = writePtr +
(numPixelsPerScanLine - 1) * slice.xStride;
diff --git a/IlmImf/ImfTiledOutputFile.cpp b/IlmImf/ImfTiledOutputFile.cpp
index 52f7577ab..1cb164fdc 100644
--- a/IlmImf/ImfTiledOutputFile.cpp
+++ b/IlmImf/ImfTiledOutputFile.cpp
@@ -789,10 +789,11 @@ TileBufferTask::execute ()
// The frame buffer contains data for this channel.
//
- const char *readPtr = slice.base +
+ intptr_t base = reinterpret_cast<intptr_t>(slice.base);
+ const char *readPtr = reinterpret_cast<const char*>(base +
(y - yOffset) * slice.yStride +
(tileRange.min.x - xOffset) *
- slice.xStride;
+ slice.xStride);
const char *endPtr = readPtr +
(numPixelsPerScanLine - 1) *
diff --git a/IlmImf/ImfTiledRgbaFile.cpp b/IlmImf/ImfTiledRgbaFile.cpp
index 157aec0ab..ff90a7b3b 100644
--- a/IlmImf/ImfTiledRgbaFile.cpp
+++ b/IlmImf/ImfTiledRgbaFile.cpp
@@ -227,11 +227,14 @@ TiledRgbaOutputFile::ToYa::writeTile (int dx, int dy, int lx, int ly)
Box2i dw = _outputFile.dataWindowForTile (dx, dy, lx, ly);
int width = dw.max.x - dw.min.x + 1;
+ intptr_t base= reinterpret_cast<intptr_t>(_fbBase);
for (int y = dw.min.y, y1 = 0; y <= dw.max.y; ++y, ++y1)
{
for (int x = dw.min.x, x1 = 0; x <= dw.max.x; ++x, ++x1)
- _buf[y1][x1] = _fbBase[x * _fbXStride + y * _fbYStride];
-
+ {
+ Rgba* ptr = reinterpret_cast<Rgba*>(base + sizeof(Rgba)*(x * _fbXStride + y * _fbYStride));
+ _buf[y1][x1] = *ptr;
+ }
RGBAtoYCA (_yw, width, _writeA, _buf[y1], _buf[y1]);
}
@@ -750,6 +753,9 @@ TiledRgbaInputFile::FromYa::readTile (int dx, int dy, int lx, int ly)
Box2i dw = _inputFile.dataWindowForTile (dx, dy, lx, ly);
int width = dw.max.x - dw.min.x + 1;
+ intptr_t base= reinterpret_cast<intptr_t>(_fbBase);
+
+
for (int y = dw.min.y, y1 = 0; y <= dw.max.y; ++y, ++y1)
{
@@ -763,7 +769,8 @@ TiledRgbaInputFile::FromYa::readTile (int dx, int dy, int lx, int ly)
for (int x = dw.min.x, x1 = 0; x <= dw.max.x; ++x, ++x1)
{
- _fbBase[x * _fbXStride + y * _fbYStride] = _buf[y1][x1];
+ Rgba* ptr = reinterpret_cast<Rgba*>(base + sizeof(Rgba)*(x * _fbXStride + y * _fbYStride));
+ *ptr = _buf[y1][x1];
}
}
}
diff --git a/IlmImfTest/testCompositeDeepScanLine.cpp b/IlmImfTest/testCompositeDeepScanLine.cpp
index 94a7ea962..c85a07ce0 100644
--- a/IlmImfTest/testCompositeDeepScanLine.cpp
+++ b/IlmImfTest/testCompositeDeepScanLine.cpp
@@ -341,8 +341,9 @@ class data
{
if(!dontbotherloadingdepth || (_channels[i]!="Z" && _channels[i]!="ZBack") )
{
+ intptr_t base = reinterpret_cast<intptr_t>(&data[i]);
framebuf.insert(_channels[i].c_str(),
- Slice(_type,(char *) (&data[i] - (dw.min.x + dw.min.y*(dw.size().x+1))*_channels.size() ),
+ Slice(_type,reinterpret_cast<char*>(base - sizeof(T)*(dw.min.x + dw.min.y*(dw.size().x+1))*_channels.size() ),
sizeof(T)*_channels.size(),
sizeof(T)*(dw.size().x+1)*_channels.size())
);
diff --git a/IlmImfTest/testDwaCompressorSimd.cpp b/IlmImfTest/testDwaCompressorSimd.cpp
index 0691ada6b..8c6015832 100644
--- a/IlmImfTest/testDwaCompressorSimd.cpp
+++ b/IlmImfTest/testDwaCompressorSimd.cpp
@@ -97,8 +97,9 @@ compareBufferRelative (const SimdAlignedBuffer64f &src,
{
for (int i=0; i<64; ++i)
{
+
double diff = fabs(src._buffer[i] - dst._buffer[i]);
- double relDiff = diff / fabs(src._buffer[i]);
+ double relDiff = src._buffer[i]==0 ? 0.0 : diff / fabs(src._buffer[i]);
if (relDiff > relErrThresh && diff > absErrThresh)
{
diff --git a/IlmImfTest/testMultiPartApi.cpp b/IlmImfTest/testMultiPartApi.cpp
index c0bfb6882..8ce19b579 100644
--- a/IlmImfTest/testMultiPartApi.cpp
+++ b/IlmImfTest/testMultiPartApi.cpp
@@ -391,18 +391,9 @@ generateRandomFile (int partCount, const std::string & fn)
int numYLevels = part->numYLevels();
// Allocating space.
- switch (pixelTypes[i])
- {
- case 0:
- tiledUintData[i].resizeErase(numYLevels, numXLevels);
- break;
- case 1:
- tiledFloatData[i].resizeErase(numYLevels, numXLevels);
- break;
- case 2:
- tiledHalfData[i].resizeErase(numYLevels, numXLevels);
- break;
- }
+ tiledUintData[i].resizeErase(numYLevels, numXLevels);
+ tiledFloatData[i].resizeErase(numYLevels, numXLevels);
+ tiledHalfData[i].resizeErase(numYLevels, numXLevels);
tiledFrameBuffers[i].resizeErase(numYLevels, numXLevels);
diff --git a/IlmImfTest/testMultiPartThreading.cpp b/IlmImfTest/testMultiPartThreading.cpp
index c4e05704a..d764121a9 100644
--- a/IlmImfTest/testMultiPartThreading.cpp
+++ b/IlmImfTest/testMultiPartThreading.cpp
@@ -560,19 +560,9 @@ generateRandomFile (int partCount, const std::string & fn)
int numXLevels = part->numXLevels();
int numYLevels = part->numYLevels();
- // Allocating space.
- switch (pixelTypes[i])
- {
- case 0:
- tiledUintData[i].resizeErase(numYLevels, numXLevels);
- break;
- case 1:
- tiledFloatData[i].resizeErase(numYLevels, numXLevels);
- break;
- case 2:
- tiledHalfData[i].resizeErase(numYLevels, numXLevels);
- break;
- }
+ tiledUintData[i].resizeErase(numYLevels, numXLevels);
+ tiledFloatData[i].resizeErase(numYLevels, numXLevels);
+ tiledHalfData[i].resizeErase(numYLevels, numXLevels);
tiledFrameBuffers[i].resizeErase(numYLevels, numXLevels);
diff --git a/IlmImfTest/testOptimizedInterleavePatterns.cpp b/IlmImfTest/testOptimizedInterleavePatterns.cpp
index c8ffd3671..07e64a128 100644
--- a/IlmImfTest/testOptimizedInterleavePatterns.cpp
+++ b/IlmImfTest/testOptimizedInterleavePatterns.cpp
@@ -196,7 +196,11 @@ bool compare(const FrameBuffer& asRead,
for (int x = dataWindow.min.x; x <= dataWindow.max.x; x++)
{
- char * ptr = (i.slice().base+i.slice().yStride*y +i.slice().xStride*x);
+ //
+ // extract value read back from file
+ //
+ intptr_t base = reinterpret_cast<intptr_t>(i.slice().base);
+ char * ptr = reinterpret_cast<char*>(base+i.slice().yStride*intptr_t(y) +i.slice().xStride*intptr_t(x));
half readHalf;
switch (i.slice().type)
{
@@ -218,8 +222,10 @@ bool compare(const FrameBuffer& asRead,
if (p!=asWritten.end())
{
- char * ptr = p.slice().base+p.slice().yStride*y +
- p.slice().xStride*x;
+
+ intptr_t base =reinterpret_cast<intptr_t>( p.slice().base);
+ char * ptr = reinterpret_cast<char*>(base+p.slice().yStride*intptr_t(y) +
+ p.slice().xStride*intptr_t(x));
switch (p.slice().type)
{
case IMF::FLOAT :
diff --git a/IlmImfTest/testPreviewImage.cpp b/IlmImfTest/testPreviewImage.cpp
index 5b32c5010..4b8949822 100644
--- a/IlmImfTest/testPreviewImage.cpp
+++ b/IlmImfTest/testPreviewImage.cpp
@@ -150,7 +150,7 @@ readWriteFiles (const char fileName1[],
file2.setFrameBuffer (pixels2 - dx - dy * w, 1, w);
file2.readPixels (dw.min.y, dw.max.y);
- for (int i = 0; i < w * h; ++h)
+ for (size_t i = 0; i < w * h; ++i)
{
assert (pixels1[i].r == pixels2[i].r);
assert (pixels1[i].g == pixels2[i].g);
diff --git a/IlmImfTest/testSharedFrameBuffer.cpp b/IlmImfTest/testSharedFrameBuffer.cpp
index 0b2293c23..47c700ab8 100644
--- a/IlmImfTest/testSharedFrameBuffer.cpp
+++ b/IlmImfTest/testSharedFrameBuffer.cpp
@@ -115,11 +115,7 @@ WriterThread::WriterThread (RgbaOutputFile *outfile): _outfile (outfile)
void
WriterThread::run ()
{
- //
- // Signal that the thread has started
- //
- threadSemaphore.post();
while (true)
{
@@ -136,6 +132,12 @@ WriterThread::run ()
break;
}
}
+
+ //
+ // Signal that the thread has finished
+ //
+
+ threadSemaphore.post();
}
@@ -146,7 +148,7 @@ class ReaderThread : public Thread
ReaderThread (RgbaInputFile *infile, int start, int step);
virtual void run ();
-
+
private:
RgbaInputFile * _infile;
@@ -165,17 +167,20 @@ ReaderThread::ReaderThread (RgbaInputFile *infile, int start, int step):
void
ReaderThread::run ()
{
- //
- // Signal that the thread has started
- //
- threadSemaphore.post ();
int num = _infile->header().dataWindow().max.y -
_infile->header().dataWindow().min.y + 1;
for (int i = _start; i < num; i += _step)
_infile->readPixels (i);
+
+ //
+ // Signal that the thread has finished
+ //
+
+ threadSemaphore.post ();
+
}
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