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Support negative stride
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Add support for negative stride to FrameBuffer Slice.

Change data type of stride from size_t to ptrdiff_t.

Add support for negative stride in `copyIntoFrameBuffer` and `copyFromFrameBuffer`.

Add a new `testNegativeStride` test.

Fixes: #614
Signed-off-by: 胡玮文 <[email protected]>
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@huww98
huww98 authored and 胡玮文 committed Jan 13, 2023
1 parent 436fcd2 commit 55bdfd1
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Showing 25 changed files with 326 additions and 153 deletions.
14 changes: 7 additions & 7 deletions src/lib/OpenEXR/ImfAcesFile.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -190,7 +190,7 @@ AcesOutputFile::~AcesOutputFile ()

void
AcesOutputFile::setFrameBuffer (
const Rgba* base, size_t xStride, size_t yStride)
const Rgba* base, ptrdiff_t xStride, ptrdiff_t yStride)
{
_data->rgbaFile->setFrameBuffer (base, xStride, yStride);
}
Expand Down Expand Up @@ -282,11 +282,11 @@ class AcesInputFile::Data

RgbaInputFile* rgbaFile;

Rgba* fbBase;
size_t fbXStride;
size_t fbYStride;
int minX;
int maxX;
Rgba* fbBase;
ptrdiff_t fbXStride;
ptrdiff_t fbYStride;
int minX;
int maxX;

bool mustConvertColor;
M44f fileToAces;
Expand Down Expand Up @@ -440,7 +440,7 @@ AcesInputFile::~AcesInputFile ()
}

void
AcesInputFile::setFrameBuffer (Rgba* base, size_t xStride, size_t yStride)
AcesInputFile::setFrameBuffer (Rgba* base, ptrdiff_t xStride, ptrdiff_t yStride)
{
_data->rgbaFile->setFrameBuffer (base, xStride, yStride);
_data->fbBase = base;
Expand Down
4 changes: 2 additions & 2 deletions src/lib/OpenEXR/ImfAcesFile.h
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Original file line number Diff line number Diff line change
Expand Up @@ -150,7 +150,7 @@ class IMF_EXPORT_TYPE AcesOutputFile
//------------------------------------------------

IMF_EXPORT
void setFrameBuffer (const Rgba* base, size_t xStride, size_t yStride);
void setFrameBuffer (const Rgba* base, ptrdiff_t xStride, ptrdiff_t yStride);

//-------------------------------------------------
// Write pixel data (see class Imf::OutputFile)
Expand Down Expand Up @@ -247,7 +247,7 @@ class IMF_EXPORT_TYPE AcesInputFile
//-----------------------------------------------------

IMF_EXPORT
void setFrameBuffer (Rgba* base, size_t xStride, size_t yStride);
void setFrameBuffer (Rgba* base, ptrdiff_t xStride, ptrdiff_t yStride);

//--------------------------------------------
// Read pixel data (see class Imf::InputFile)
Expand Down
10 changes: 5 additions & 5 deletions src/lib/OpenEXR/ImfCRgbaFile.cpp
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Expand Up @@ -947,7 +947,7 @@ ImfCloseOutputFile (ImfOutputFile* out)

int
ImfOutputSetFrameBuffer (
ImfOutputFile* out, const ImfRgba* base, size_t xStride, size_t yStride)
ImfOutputFile* out, const ImfRgba* base, ptrdiff_t xStride, ptrdiff_t yStride)
{
try
{
Expand Down Expand Up @@ -1043,8 +1043,8 @@ int
ImfTiledOutputSetFrameBuffer (
ImfTiledOutputFile* out,
const ImfRgba* base,
size_t xStride,
size_t yStride)
ptrdiff_t xStride,
ptrdiff_t yStride)
{
try
{
Expand Down Expand Up @@ -1165,7 +1165,7 @@ ImfCloseInputFile (ImfInputFile* in)

int
ImfInputSetFrameBuffer (
ImfInputFile* in, ImfRgba* base, size_t xStride, size_t yStride)
ImfInputFile* in, ImfRgba* base, ptrdiff_t xStride, ptrdiff_t yStride)
{
try
{
Expand Down Expand Up @@ -1245,7 +1245,7 @@ ImfCloseTiledInputFile (ImfTiledInputFile* in)

int
ImfTiledInputSetFrameBuffer (
ImfTiledInputFile* in, ImfRgba* base, size_t xStride, size_t yStride)
ImfTiledInputFile* in, ImfRgba* base, ptrdiff_t xStride, ptrdiff_t yStride)
{
try
{
Expand Down
10 changes: 5 additions & 5 deletions src/lib/OpenEXR/ImfCRgbaFile.h
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Original file line number Diff line number Diff line change
Expand Up @@ -297,7 +297,7 @@ int ImfCloseOutputFile (ImfOutputFile* out);

IMF_EXPORT
int ImfOutputSetFrameBuffer (
ImfOutputFile* out, const ImfRgba* base, size_t xStride, size_t yStride);
ImfOutputFile* out, const ImfRgba* base, ptrdiff_t xStride, ptrdiff_t yStride);

IMF_EXPORT
int ImfOutputWritePixels (ImfOutputFile* out, int numScanLines);
Expand Down Expand Up @@ -335,8 +335,8 @@ IMF_EXPORT
int ImfTiledOutputSetFrameBuffer (
ImfTiledOutputFile* out,
const ImfRgba* base,
size_t xStride,
size_t yStride);
ptrdiff_t xStride,
ptrdiff_t yStride);

IMF_EXPORT
int ImfTiledOutputWriteTile (
Expand Down Expand Up @@ -385,7 +385,7 @@ int ImfCloseInputFile (ImfInputFile* in);

IMF_EXPORT
int ImfInputSetFrameBuffer (
ImfInputFile* in, ImfRgba* base, size_t xStride, size_t yStride);
ImfInputFile* in, ImfRgba* base, ptrdiff_t xStride, ptrdiff_t yStride);

IMF_EXPORT
int ImfInputReadPixels (ImfInputFile* in, int scanLine1, int scanLine2);
Expand Down Expand Up @@ -414,7 +414,7 @@ int ImfCloseTiledInputFile (ImfTiledInputFile* in);

IMF_EXPORT
int ImfTiledInputSetFrameBuffer (
ImfTiledInputFile* in, ImfRgba* base, size_t xStride, size_t yStride);
ImfTiledInputFile* in, ImfRgba* base, ptrdiff_t xStride, ptrdiff_t yStride);

IMF_EXPORT
int
Expand Down
4 changes: 2 additions & 2 deletions src/lib/OpenEXR/ImfDeepFrameBuffer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -14,8 +14,8 @@ OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_ENTER
DeepSlice::DeepSlice (
PixelType t,
char* b,
size_t xst,
size_t yst,
ptrdiff_t xst,
ptrdiff_t yst,
size_t spst,
int xsm,
int ysm,
Expand Down
4 changes: 2 additions & 2 deletions src/lib/OpenEXR/ImfDeepFrameBuffer.h
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Original file line number Diff line number Diff line change
Expand Up @@ -49,8 +49,8 @@ struct IMF_EXPORT_TYPE DeepSlice : public Slice
DeepSlice (
PixelType type = HALF,
char* base = 0,
size_t xStride = 0,
size_t yStride = 0,
ptrdiff_t xStride = 0,
ptrdiff_t yStride = 0,
size_t sampleStride = 0,
int xSampling = 1,
int ySampling = 1,
Expand Down
12 changes: 6 additions & 6 deletions src/lib/OpenEXR/ImfDeepScanLineInputFile.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -62,8 +62,8 @@ struct InSliceInfo
PixelType typeInFile;
char* base;
char* pointerArrayBase;
size_t xPointerStride;
size_t yPointerStride;
ptrdiff_t xPointerStride;
ptrdiff_t yPointerStride;
size_t sampleStride;
int xSampling;
int ySampling;
Expand All @@ -75,8 +75,8 @@ struct InSliceInfo
PixelType typeInFrameBuffer = HALF,
char* base = NULL,
PixelType typeInFile = HALF,
size_t xPointerStride = 0,
size_t yPointerStride = 0,
ptrdiff_t xPointerStride = 0,
ptrdiff_t yPointerStride = 0,
size_t sampleStride = 0,
int xSampling = 1,
int ySampling = 1,
Expand All @@ -89,8 +89,8 @@ InSliceInfo::InSliceInfo (
PixelType tifb,
char* b,
PixelType tifl,
size_t xpst,
size_t ypst,
ptrdiff_t xpst,
ptrdiff_t ypst,
size_t spst,
int xsm,
int ysm,
Expand Down
12 changes: 6 additions & 6 deletions src/lib/OpenEXR/ImfDeepTiledInputFile.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -60,8 +60,8 @@ struct TInSliceInfo
PixelType typeInFrameBuffer;
PixelType typeInFile;
char* pointerArrayBase;
size_t xStride;
size_t yStride;
ptrdiff_t xStride;
ptrdiff_t yStride;
ptrdiff_t sampleStride;
bool fill;
bool skip;
Expand All @@ -73,8 +73,8 @@ struct TInSliceInfo
PixelType typeInFrameBuffer = HALF,
char* base = NULL,
PixelType typeInFile = HALF,
size_t xStride = 0,
size_t yStride = 0,
ptrdiff_t xStride = 0,
ptrdiff_t yStride = 0,
ptrdiff_t sampleStride = 0,
bool fill = false,
bool skip = false,
Expand All @@ -87,8 +87,8 @@ TInSliceInfo::TInSliceInfo (
PixelType tifb,
char* b,
PixelType tifl,
size_t xs,
size_t ys,
ptrdiff_t xs,
ptrdiff_t ys,
ptrdiff_t spst,
bool f,
bool s,
Expand Down
12 changes: 6 additions & 6 deletions src/lib/OpenEXR/ImfDeepTiledOutputFile.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -71,17 +71,17 @@ struct TOutSliceInfo
PixelType type;
const char* base;
size_t sampleStride;
size_t xStride;
size_t yStride;
ptrdiff_t xStride;
ptrdiff_t yStride;
bool zero;
int xTileCoords;
int yTileCoords;

TOutSliceInfo (
PixelType type = HALF,
size_t sampleStride = 0,
size_t xStride = 0,
size_t yStride = 0,
ptrdiff_t xStride = 0,
ptrdiff_t yStride = 0,
bool zero = false,
int xTileCoords = 0,
int yTileCoords = 0);
Expand All @@ -90,8 +90,8 @@ struct TOutSliceInfo
TOutSliceInfo::TOutSliceInfo (
PixelType t,
size_t spst,
size_t xStride,
size_t yStride,
ptrdiff_t xStride,
ptrdiff_t yStride,
bool z,
int xtc,
int ytc)
Expand Down
14 changes: 7 additions & 7 deletions src/lib/OpenEXR/ImfFrameBuffer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -22,8 +22,8 @@ OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_ENTER
Slice::Slice (
PixelType t,
char* b,
size_t xst,
size_t yst,
ptrdiff_t xst,
ptrdiff_t yst,
int xsm,
int ysm,
double fv,
Expand All @@ -49,8 +49,8 @@ Slice::Make (
const IMATH_NAMESPACE::V2i& origin,
int64_t w,
int64_t h,
size_t xStride,
size_t yStride,
ptrdiff_t xStride,
ptrdiff_t yStride,
int xSampling,
int ySampling,
double fillValue,
Expand All @@ -69,7 +69,7 @@ Slice::Make (
THROW (IEX_NAMESPACE::ArgExc, "Invalid pixel type.");
}
}
if (yStride == 0) yStride = static_cast<size_t> (w / xSampling) * xStride;
if (yStride == 0) yStride = (w / xSampling) * xStride;

// data window is an int, so force promote to higher type to avoid
// overflow for off y (degenerate size checks should be in
Expand Down Expand Up @@ -99,8 +99,8 @@ Slice::Make (
PixelType type,
const void* ptr,
const IMATH_NAMESPACE::Box2i& dataWindow,
size_t xStride,
size_t yStride,
ptrdiff_t xStride,
ptrdiff_t yStride,
int xSampling,
int ySampling,
double fillValue,
Expand Down
18 changes: 9 additions & 9 deletions src/lib/OpenEXR/ImfFrameBuffer.h
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Original file line number Diff line number Diff line change
Expand Up @@ -62,9 +62,9 @@ struct IMF_EXPORT_TYPE Slice
//
//---------------------------------------------------------------------

char* base;
size_t xStride;
size_t yStride;
char* base;
ptrdiff_t xStride;
ptrdiff_t yStride;

//--------------------------------------------
// Subsampling: pixel (x, y) is present in the
Expand Down Expand Up @@ -107,8 +107,8 @@ struct IMF_EXPORT_TYPE Slice
Slice (
PixelType type = HALF,
char* base = 0,
size_t xStride = 0,
size_t yStride = 0,
ptrdiff_t xStride = 0,
ptrdiff_t yStride = 0,
int xSampling = 1,
int ySampling = 1,
double fillValue = 0.0,
Expand All @@ -127,8 +127,8 @@ struct IMF_EXPORT_TYPE Slice
const IMATH_NAMESPACE::V2i& origin,
int64_t w,
int64_t h,
size_t xStride = 0,
size_t yStride = 0,
ptrdiff_t xStride = 0,
ptrdiff_t yStride = 0,
int xSampling = 1,
int ySampling = 1,
double fillValue = 0.0,
Expand All @@ -141,8 +141,8 @@ struct IMF_EXPORT_TYPE Slice
PixelType type,
const void* ptr,
const IMATH_NAMESPACE::Box2i& dataWindow,
size_t xStride = 0,
size_t yStride = 0,
ptrdiff_t xStride = 0,
ptrdiff_t yStride = 0,
int xSampling = 1,
int ySampling = 1,
double fillValue = 0.0,
Expand Down
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