//////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2004-2012, Industrial Light & Magic, a division of Lucasfilm
// Entertainment Company Ltd. Portions contributed and copyright held by
// others as indicated. 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
// any other contributors to this software 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,
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// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//////////////////////////////////////////////////////////////////////////////
#include <ImfRgbaFile.h>
#include <ImfArray.h>
#include <ImfThreading.h>
#include "IlmThread.h"
#include "ImathMath.h"
#include <stdio.h>
#include <assert.h>
#include <algorithm>
using namespace OPENEXR_IMF_NAMESPACE;
using namespace std;
using namespace IMATH_NAMESPACE;
namespace {
void
fillPixelsColor (Array2D <Rgba> &pixels, int w, int h)
{
for (int y = 0; y < h; ++y)
{
for (int x = 0; x < w; ++x)
{
Rgba &p = pixels[y][x];
p.r = 0.8 + 0.5 * sin (x * 0.05);
p.g = 0.8 + 0.5 * sin (x * 0.02 + y * 0.02);
p.b = 0.8 + 0.5 * sin (y * 0.03);
float t = 0.8 + 0.5 * sin (x * 0.05 - y * 0.05);
p.r *= t;
p.g *= t;
p.b *= t;
p.a = t;
}
}
}
void
fillPixelsGray (Array2D <Rgba> &pixels, int w, int h)
{
for (int y = 0; y < h; ++y)
{
for (int x = 0; x < w; ++x)
{
Rgba &p = pixels[y][x];
p.r = 0.8 + 0.5 * sin (x * 0.05 - y * 0.05);
p.g = p.r;
p.b = p.r;
p.a = 0.5 + 0.5 * cos (x * 0.05 - y * 0.05);
}
}
}
void
writeReadYca (const char fileName[],
const Box2i &dw,
RgbaChannels channels,
LineOrder writeOrder,
LineOrder readOrder,
void (* fillPixels) (Array2D <Rgba> &pixels, int w, int h))
{
int w = dw.max.x - dw.min.x + 1;
int h = dw.max.y - dw.min.y + 1;
Array2D <Rgba> pixels1 (h, w);
Array2D <Rgba> pixels2 (h, w);
cout << w << " by " << h << " pixels, "
"channels " << channels << ", "
"write order " << writeOrder << ", "
"read order " << readOrder <<
endl;
fillPixels (pixels1, w, h);
cout << "writing " << flush;
{
RgbaOutputFile out (fileName,
dw, dw, // display window, data window
channels,
1, // pixelAspectRatio
V2f (0, 0), // screenWindowCenter
1, // screenWindowWidth
writeOrder);
out.setYCRounding (9, 9);
out.setFrameBuffer (&pixels1[-dw.min.y][-dw.min.x], 1, w);
out.writePixels (h);
}
cout << "reading " << flush;
{
RgbaInputFile in (fileName);
in.setFrameBuffer (&pixels2[-dw.min.y][-dw.min.x], 1, w);
switch (readOrder)
{
case INCREASING_Y:
for (int y = dw.min.y; y <= dw.max.y; ++y)
in.readPixels (y);
break;
case DECREASING_Y:
for (int y = dw.max.y; y >= dw.min.y; --y)
in.readPixels (y);
break;
case RANDOM_Y:
assert (h % 5 != 0);
for (int i = 0; i < h; ++i)
{
int y = dw.min.y + (i * 5) % h;
in.readPixels (y);
}
break;
}
}
cout << "comparing" << endl;
for (int y = 0; y < h; ++y)
{
for (int x = 0; x < w; ++x)
{
const Rgba &p1 = pixels1[y][x];
const Rgba &p2 = pixels2[y][x];
if (channels & WRITE_C)
{
float p1Max = max (p1.r, max (p1.g, p1.b));
float p2Max = max (p2.r, max (p2.g, p2.b));
assert (equalWithAbsError (p1Max, p2Max, 0.03f));
}
else
{
assert (p1.g == p2.g);
}
if (channels & WRITE_A)
{
assert (p1.a == p2.a);
}
}
}
remove (fileName);
}
} // namespace
void
testYca (const std::string &tempDir)
{
try
{
cout << "Testing luminance/chroma input and output" << endl;
std::string fileName = tempDir + "imf_test_yca.exr";
Box2i dataWindow[6];
dataWindow[0] = Box2i (V2i (0, 0), V2i (1, 17));
dataWindow[1] = Box2i (V2i (0, 0), V2i (5, 17));
dataWindow[2] = Box2i (V2i (0, 0), V2i (17, 1));
dataWindow[3] = Box2i (V2i (0, 0), V2i (17, 5));
dataWindow[4] = Box2i (V2i (0, 0), V2i (1, 1));
dataWindow[5] = Box2i (V2i (-18, -28), V2i (247, 255));
int maxThreads = ILMTHREAD_NAMESPACE::supportsThreads()? 3: 0;
for (int n = 0; n <= maxThreads; ++n)
{
if (ILMTHREAD_NAMESPACE::supportsThreads())
{
setGlobalThreadCount (n);
cout << "\nnumber of threads: " << globalThreadCount() << endl;
}
for (int i = 0; i < 6; ++i)
{
for (int writeOrder = INCREASING_Y;
writeOrder <= DECREASING_Y;
++writeOrder)
{
for (int readOrder = INCREASING_Y;
readOrder <= RANDOM_Y;
++readOrder)
{
writeReadYca (fileName.c_str(), dataWindow[i],
WRITE_YCA,
LineOrder (writeOrder),
LineOrder (readOrder),
fillPixelsColor);
writeReadYca (fileName.c_str(), dataWindow[i],
WRITE_YC,
LineOrder (writeOrder),
LineOrder (readOrder),
fillPixelsColor);
writeReadYca (fileName.c_str(), dataWindow[i],
WRITE_YA,
LineOrder (writeOrder),
LineOrder (readOrder),
fillPixelsGray);
writeReadYca (fileName.c_str(), dataWindow[i],
WRITE_Y,
LineOrder (writeOrder),
LineOrder (readOrder),
fillPixelsGray);
}
}
}
}
cout << "ok\n" << endl;
}
catch (const std::exception &e)
{
cerr << "ERROR -- caught exception: " << e.what() << endl;
assert (false);
}
}