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EasyGen/libs/openexr-2.0.0/IlmImfTest/testTiledCompression.cpp

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///////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2004, Industrial Light & Magic, a division of Lucas
// Digital Ltd. LLC
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the name of Industrial Light & Magic nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "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 THE COPYRIGHT
// OWNER 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 "compareB44.h"
#include <ImfOutputFile.h>
#include <ImfInputFile.h>
#include <ImfTiledOutputFile.h>
#include <ImfTiledInputFile.h>
#include <ImfChannelList.h>
#include <ImfArray.h>
#include <half.h>
#include <ImathRandom.h>
#include <ImfTileDescriptionAttribute.h>
#include "compareFloat.h"
#include <stdio.h>
#include <assert.h>
#include "tmpDir.h"
using namespace OPENEXR_IMF_NAMESPACE;
using namespace std;
using namespace IMATH_NAMESPACE;
namespace {
void
fillPixels1 (Array2D<unsigned int> &pi,
Array2D<half> &ph,
Array2D<float> &pf,
int width,
int height)
{
cout << "only zeroes" << endl;
for (int y = 0; y < height; ++y)
for (int x = 0; x < width; ++x)
{
pi[y][x] = 0;
ph[y][x] = 0;
pf[y][x] = 0;
}
}
void
fillPixels2 (Array2D<unsigned int> &pi,
Array2D<half> &ph,
Array2D<float> &pf,
int width,
int height)
{
cout << "pattern 1" << endl;
for (int y = 0; y < height; ++y)
for (int x = 0; x < width; ++x)
{
pi[y][x] = (x + y) & 1;
ph[y][x] = pi[y][x];
pf[y][x] = pi[y][x];
}
}
void
fillPixels3 (Array2D<unsigned int> &pi,
Array2D<half> &ph,
Array2D<float> &pf,
int width,
int height)
{
cout << "pattern 2" << endl;
for (int y = 0; y < height; ++y)
for (int x = 0; x < width; ++x)
{
pi[y][x] = x % 100 + 100 * (y % 100);
ph[y][x] = sin (double (x)) + sin (y * 0.5);
pf[y][x] = sin (double (y)) + sin (x * 0.5);
}
}
void
fillPixels4 (Array2D<unsigned int> &pi,
Array2D<half> &ph,
Array2D<float> &pf,
int width,
int height)
{
cout << "random bits" << endl;
//
// Use of a union to extract the bit pattern from a float, as is
// done below, works only if int and float have the same size.
//
assert (sizeof (int) == sizeof (float));
Rand48 rand;
for (int y = 0; y < height; ++y)
for (int x = 0; x < width; ++x)
{
pi[y][x] = rand.nexti();
do
{
ph[y][x].setBits (rand.nexti());
}
while (ph[y][x].isNan());
union {int i; float f;} u;
do
{
u.i = rand.nexti();
pf[y][x] = u.f;
}
while (pf[y][x] != pf[y][x]);
}
}
void
writeRead (const Array2D<unsigned int> &pi1,
const Array2D<half> &ph1,
const Array2D<float> &pf1,
const char fileName[],
LineOrder lorder,
int width,
int height,
int xSize,
int ySize,
int xOffset,
int yOffset,
Compression comp)
{
//
// Write the pixel data in pi1, ph1 and ph2 to an
// image file using the specified compression type.
// Read the pixel data back
// from the file and verify that the data did not
// change.
//
cout << "compression " << comp << ":" << flush;
Header hdr ((Box2i (V2i (0, 0), // display window
V2i (width - 1, height -1))),
(Box2i (V2i (xOffset, yOffset), // data window
V2i (xOffset + width - 1, yOffset + height - 1))));
hdr.compression() = comp;
hdr.lineOrder() = lorder;
hdr.channels().insert ("I", Channel (UINT));
hdr.channels().insert ("H", Channel (HALF));
hdr.channels().insert ("F", Channel (FLOAT));
hdr.setTileDescription(TileDescription(xSize, ySize, ONE_LEVEL));
{
FrameBuffer fb;
fb.insert ("I", // name
Slice (UINT, // type
(char *) &pi1[-yOffset][-xOffset], // base
sizeof (pi1[0][0]), // xStride
sizeof (pi1[0][0]) * width) // yStride
);
fb.insert ("H", // name
Slice (HALF, // type
(char *) &ph1[-yOffset][-xOffset], // base
sizeof (ph1[0][0]), // xStride
sizeof (ph1[0][0]) * width) // yStride
);
fb.insert ("F", // name
Slice (FLOAT, // type
(char *) &pf1[-yOffset][-xOffset], // base
sizeof (pf1[0][0]), // xStride
sizeof (pf1[0][0]) * width) // yStride
);
cout << " writing" << flush;
remove (fileName);
TiledOutputFile out (fileName, hdr);
out.setFrameBuffer (fb);
out.writeTiles (0, out.numXTiles() - 1, 0, out.numYTiles() - 1);
}
{
cout << ", reading (whole file)" << flush;
TiledInputFile in (fileName);
const Box2i &dw = in.header().dataWindow();
int w = dw.max.x - dw.min.x + 1;
int h = dw.max.y - dw.min.y + 1;
int dwx = dw.min.x;
int dwy = dw.min.y;
Array2D<unsigned int> pi2 (h, w);
Array2D<half> ph2 (h, w);
Array2D<float> pf2 (h, w);
FrameBuffer fb;
fb.insert ("I", // name
Slice (UINT, // type
(char *) &pi2[-dwy][-dwx],// base
sizeof (pi2[0][0]), // xStride
sizeof (pi2[0][0]) * w) // yStride
);
fb.insert ("H", // name
Slice (HALF, // type
(char *) &ph2[-dwy][-dwx],// base
sizeof (ph2[0][0]), // xStride
sizeof (ph2[0][0]) * w) // yStride
);
fb.insert ("F", // name
Slice (FLOAT, // type
(char *) &pf2[-dwy][-dwx],// base
sizeof (pf2[0][0]), // xStride
sizeof (pf2[0][0]) * w) // yStride
);
in.setFrameBuffer (fb);
in.readTiles (0, in.numXTiles() - 1, 0, in.numYTiles() - 1);
cout << ", comparing (whole file)" << flush;
assert (in.header().displayWindow() == hdr.displayWindow());
assert (in.header().dataWindow() == hdr.dataWindow());
assert (in.header().pixelAspectRatio() == hdr.pixelAspectRatio());
assert (in.header().screenWindowCenter() == hdr.screenWindowCenter());
assert (in.header().screenWindowWidth() == hdr.screenWindowWidth());
assert (in.header().lineOrder() == hdr.lineOrder());
assert (in.header().compression() == hdr.compression());
ChannelList::ConstIterator hi = hdr.channels().begin();
ChannelList::ConstIterator ii = in.header().channels().begin();
while (hi != hdr.channels().end())
{
assert (!strcmp (hi.name(), ii.name()));
assert (hi.channel().type == ii.channel().type);
assert (hi.channel().xSampling == ii.channel().xSampling);
assert (hi.channel().ySampling == ii.channel().ySampling);
++hi;
++ii;
}
assert (ii == in.header().channels().end());
if (comp == B44_COMPRESSION || comp == B44A_COMPRESSION)
{
for (int y = 0; y < h; y += ySize)
{
for (int x = 0; x < w; x += xSize)
{
int nx = min (w - x, xSize);
int ny = min (h - y, ySize);
Array2D<half> ph3 (ny, nx);
Array2D<half> ph4 (ny, nx);
for (int y1 = 0; y1 < ny; ++y1)
{
for (int x1 = 0; x1 < nx; ++x1)
{
ph3[y1][x1] = ph1[y + y1][x + x1];
ph4[y1][x1] = ph2[y + y1][x + x1];
}
}
compareB44 (nx, ny, ph3, ph4);
}
}
}
for (int y = 0; y < h; ++y)
{
for (int x = 0; x < w; ++x)
{
assert (pi1[y][x] == pi2[y][x]);
if (comp != B44_COMPRESSION && comp != B44A_COMPRESSION)
assert (ph1[y][x] == ph2[y][x]);
assert (equivalent (pf1[y][x], pf2[y][x], comp));
}
}
}
{
cout << ", reading and comparing (tile-by-tile)" << flush;
TiledInputFile in (fileName);
Array2D<unsigned int> pi2 (ySize, xSize);
Array2D<half> ph2 (ySize, xSize);
Array2D<float> pf2 (ySize, xSize);
FrameBuffer fb;
fb.insert ("I", // name
Slice (UINT, // type
(char *) &pi2[0][0], // base
sizeof (pi2[0][0]), // xStride
sizeof (pi2[0][0]) * xSize, // yStride
1, // xSampling
1, // ySampling
0.0, // fillValue
true, // reuse tiles
true)
);
fb.insert ("H", // name
Slice (HALF, // type
(char *) &ph2[0][0], // base
sizeof (ph2[0][0]), // xStride
sizeof (ph2[0][0]) * xSize, // yStride
1, // xSampling
1, // ySampling
0.0, // fillValue
true, // reuse tiles
true)
);
fb.insert ("F", // name
Slice (FLOAT, // type
(char *) &pf2[0][0], // base
sizeof (pf2[0][0]), // xStride
sizeof (pf2[0][0]) * xSize, // yStride
1, // xSampling
1, // ySampling
0.0, // fillValue
true, // reuse tiles
true)
);
in.setFrameBuffer (fb);
assert (in.header().displayWindow() == hdr.displayWindow());
assert (in.header().dataWindow() == hdr.dataWindow());
assert (in.header().pixelAspectRatio() == hdr.pixelAspectRatio());
assert (in.header().screenWindowCenter() == hdr.screenWindowCenter());
assert (in.header().screenWindowWidth() == hdr.screenWindowWidth());
assert (in.header().lineOrder() == hdr.lineOrder());
assert (in.header().compression() == hdr.compression());
ChannelList::ConstIterator hi = hdr.channels().begin();
ChannelList::ConstIterator ii = in.header().channels().begin();
while (hi != hdr.channels().end())
{
assert (!strcmp (hi.name(), ii.name()));
assert (hi.channel().type == ii.channel().type);
assert (hi.channel().xSampling == ii.channel().xSampling);
assert (hi.channel().ySampling == ii.channel().ySampling);
++hi;
++ii;
}
assert (ii == in.header().channels().end());
for (int tileY = 0; tileY < in.numYTiles(); tileY++)
{
for (int tileX = 0; tileX < in.numXTiles(); ++tileX)
{
in.readTile (tileX, tileY);
IMATH_NAMESPACE::Box2i win = in.dataWindowForTile (tileX, tileY);
int oX = win.min.x - xOffset;
int oY = win.min.y - yOffset;
for (int y = 0, y2 = win.min.y; y < ySize && y2 <= win.max.y;
++y, y2++)
{
for (int x = 0, x2 = win.min.x;
x < xSize && x2 <= win.max.x; ++x, x2++)
{
assert (pi1[oY + y][oX + x] == pi2[y][x]);
if (comp != B44_COMPRESSION && comp != B44A_COMPRESSION)
{
assert (ph1[oY + y][oX + x] == ph2[y][x]);
}
assert (equivalent (pf1[oY + y][oX + x],
pf2[y][x], comp));
}
}
}
}
}
remove (fileName);
cout << endl;
}
void
writeRead (const Array2D<unsigned int> &pi,
const Array2D<half> &ph,
const Array2D<float> &pf,
int w,
int h,
int xs,
int ys,
int dx,
int dy)
{
const char *filename = IMF_TMP_DIR "imf_test_comp.exr";
for (int comp = 0; comp < NUM_COMPRESSION_METHODS; ++comp)
{
writeRead (pi, ph, pf,
filename,
LineOrder (0),
w, h,
xs, ys,
dx, dy,
Compression (comp));
}
}
} // namespace
void
testTiledCompression ()
{
try
{
cout << "Testing pixel data types and data "
"window offsets for tiled files" << endl;
const int W = 171;
const int H = 59;
const int DX[] = {-17, 0, 23};
const int DY[] = {-29, 0, 13};
const int XS = 15;
const int YS = 15;
Array2D<unsigned int> pi (H, W);
Array2D<half> ph (H, W);
Array2D<float> pf (H, W);
//
// If the following assertion fails, new pixel types have
// been added to the Imf library; testing code for the new
// pixel types should be added to this file.
//
assert (NUM_PIXELTYPES == 3);
for (int i = 0; i < 3; ++i)
{
cout << endl <<
"xOffset = " << DX[i] << ", "
"yOffset = " << DY[i] << endl;
fillPixels1 (pi, ph, pf, W, H);
writeRead (pi, ph, pf, W, H, XS, YS, DX[i], DY[i]);
fillPixels2 (pi, ph, pf, W, H);
writeRead (pi, ph, pf, W, H, XS, YS, DX[i], DY[i]);
fillPixels3 (pi, ph, pf, W, H);
writeRead (pi, ph, pf, W, H, XS, YS, DX[i], DY[i]);
fillPixels4 (pi, ph, pf, W, H);
writeRead (pi, ph, pf, W, H, XS, YS, DX[i], DY[i]);
}
cout << "ok\n" << endl;
}
catch (const std::exception &e)
{
cerr << "ERROR -- caught exception: " << e.what() << endl;
assert (false);
}
}
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