/*****************************************************************************/
// Copyright 2006-2012 Adobe Systems Incorporated
// All Rights Reserved.
//
// NOTICE: Adobe permits you to use, modify, and distribute this file in
// accordance with the terms of the Adobe license agreement accompanying it.
/*****************************************************************************/
/* $Id: //mondo/dng_sdk_1_4/dng_sdk/source/dng_utils.cpp#3 $ */
/* $DateTime: 2012/08/12 15:38:38 $ */
/* $Change: 842799 $ */
/* $Author: tknoll $ */
/*****************************************************************************/
#include "dng_utils.h"
#include "dng_area_task.h"
#include "dng_assertions.h"
#include "dng_bottlenecks.h"
#include "dng_exceptions.h"
#include "dng_host.h"
#include "dng_image.h"
#include "dng_flags.h"
#include "dng_point.h"
#include "dng_rect.h"
#include "dng_safe_arithmetic.h"
#include "dng_tag_types.h"
#include "dng_tile_iterator.h"
#if qMacOS
#include <TargetConditionals.h>
#if TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR
#include <MobileCoreServices/MobileCoreServices.h>
#else
#include <CoreServices/CoreServices.h>
#endif // TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR
#endif // qMacOS
#if qiPhone || qMacOS
// these provide timers
#include <mach/mach.h>
#include <mach/mach_time.h>
#endif
#if qWinOS
#include <windows.h>
#else
#include <sys/time.h>
#include <stdarg.h> // for va_start/va_end
#endif
/*****************************************************************************/
#if qDNGDebug
/*****************************************************************************/
#if qMacOS
#define DNG_DEBUG_BREAK __asm__ volatile ("int3")
#elif qWinOS
#if qDNG64Bit
// no inline assembly on Win 64-bit, so use DebugBreak
#define DNG_DEBUG_BREAK DebugBreak()
#else
#define DNG_DEBUG_BREAK __asm__ volatile ("int3")
#endif
#elif qiPhone
// simulator is running on Intel
#if qiPhoneSimulator
#define DNG_DEBUG_BREAK __asm__ volatile ("int3")
#else
// The debugger doesn't restore program counter after this is called.
// Caller must move program counter past line to continue.
// As of iOS5/xCode 4.2, recovery may not be possible.
#define DNG_DEBUG_BREAK __asm__ volatile ("bkpt 1")
#endif
#elif qAndroid
#define DNG_DEBUG_BREAK __asm__ volatile ("bkpt 1")
#elif qLinux
#define DNG_DEBUG_BREAK __asm__ volatile ("int3")
#else
#define DNG_DEBUG_BREAK
#endif
/*****************************************************************************/
bool gPrintAsserts = true;
bool gBreakOnAsserts = true;
/*****************************************************************************/
void dng_show_message (const char *s)
{
#if qDNGPrintMessages
// display the message
if (gPrintAsserts)
fprintf (stderr, "%s\n", s);
#elif qiPhone || qAndroid || qLinux
if (gPrintAsserts)
fprintf (stderr, "%s\n", s);
// iOS doesn't print a message to the console like DebugStr and MessageBox do, so we have to do both
// You'll have to advance the program counter manually past this statement
if (gBreakOnAsserts)
DNG_DEBUG_BREAK;
#elif qMacOS
if (gBreakOnAsserts)
{
// truncate the to 255 chars
char ss [256];
uint32 len = strlen (s);
if (len > 255)
len = 255;
strncpy (&(ss [1]), s, len );
ss [0] = (unsigned char) len;
DebugStr ((unsigned char *) ss);
}
else if (gPrintAsserts)
{
fprintf (stderr, "%s\n", s);
}
#elif qWinOS
// display a dialog
// This is not thread safe. Multiple message boxes can be launched.
// Should also be launched in its own thread so main msg queue isn't thrown off.
if (gBreakOnAsserts)
MessageBoxA (NULL, (LPSTR) s, NULL, MB_OK);
else if (gPrintAsserts)
fprintf (stderr, "%s\n", s);
#endif
}
/*****************************************************************************/
void dng_show_message_f (const char *fmt, ... )
{
char buffer [1024];
va_list ap;
va_start (ap, fmt);
vsnprintf (buffer, sizeof (buffer), fmt, ap);
va_end (ap);
dng_show_message (buffer);
}
/*****************************************************************************/
#endif
/*****************************************************************************/
uint32 ComputeBufferSize(uint32 pixelType, const dng_point &tileSize,
uint32 numPlanes, PaddingType paddingType)
{
// Convert tile size to uint32.
if (tileSize.h < 0 || tileSize.v < 0)
{
ThrowMemoryFull("Negative tile size");
}
const uint32 tileSizeH = static_cast<uint32>(tileSize.h);
const uint32 tileSizeV = static_cast<uint32>(tileSize.v);
const uint32 pixelSize = TagTypeSize(pixelType);
// Add padding to width if necessary.
uint32 paddedWidth = tileSizeH;
if (paddingType == pad16Bytes)
{
if (!RoundUpForPixelSize(paddedWidth, pixelSize, &paddedWidth))
{
ThrowMemoryFull("Arithmetic overflow computing buffer size");
}
}
// Compute buffer size.
uint32 bufferSize;
if (!SafeUint32Mult(paddedWidth, tileSizeV, &bufferSize) ||
!SafeUint32Mult(bufferSize, pixelSize, &bufferSize) ||
!SafeUint32Mult(bufferSize, numPlanes, &bufferSize))
{
ThrowMemoryFull("Arithmetic overflow computing buffer size");
}
return bufferSize;
}
/*****************************************************************************/
real64 TickTimeInSeconds ()
{
#if qWinOS
// One might think it prudent to cache the frequency here, however
// low-power CPU modes can, and do, change the value returned.
// Thus the frequencey needs to be retrieved each time.
// Note that the frequency changing can cause the return
// result to jump backwards, which is why the TickCountInSeconds
// (below) also exists.
// Just plug in laptop when doing timings to minimize this.
// QPC/QPH is a slow call compared to rtdsc.
#if qImagecore
// You should be plugged-in when measuring.
static real64 freqMultiplier = 0.0;
if (freqMultiplier == 0.0)
{
LARGE_INTEGER freq;
QueryPerformanceFrequency (&freq);
freqMultiplier = 1.0 / (real64) freq.QuadPart;
}
#else
LARGE_INTEGER freq;
QueryPerformanceFrequency (&freq);
real64 freqMultiplier = 1.0 / (real64) freq.QuadPart;
#endif // qImagecore
LARGE_INTEGER cycles;
QueryPerformanceCounter (&cycles);
return (real64) cycles.QuadPart * freqMultiplier;
#elif qiPhone || qMacOS
// this is switching Mac to high performance timer
// and this is also the timer for iPhone
// assume frequency is unchanging, requesting frequency every time call
// is too slow. multiple cores, different frequency ?
static real64 freqMultiplier = 0.0;
if (freqMultiplier == 0.0)
{
mach_timebase_info_data_t freq;
mach_timebase_info(&freq);
// converts from nanos to micros
// numer = 125, denom = 3 * 1000
freqMultiplier = ((real64)freq.numer / (real64)freq.denom) * 1.0e-9;
}
return mach_absolute_time() * freqMultiplier;
#elif qAndroid || qLinux
//this is a fast timer to nanos
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
return now.tv_sec + (real64)now.tv_nsec * 1.0e-9;
#else
// Perhaps a better call exists. (e.g. avoid adjtime effects)
struct timeval tv;
gettimeofday (&tv, NULL);
return tv.tv_sec + (real64)tv.tv_usec * 1.0e-6;
#endif
}
/*****************************************************************************/
real64 TickCountInSeconds ()
{
#if qWinOS
return GetTickCount () * (1.0 / 1000.0);
#elif qMacOS
#if TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR
// TODO: Needs implementation.
ThrowProgramError ("TickCountInSeconds() not implemented on iOS");
return 0;
#else
return TickCount () * (1.0 / 60.0);
#endif // TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR
#else
return TickTimeInSeconds ();
#endif
}
/*****************************************************************************/
bool gDNGShowTimers = true;
dng_timer::dng_timer (const char *message)
: fMessage (message )
, fStartTime (TickTimeInSeconds ())
{
}
/*****************************************************************************/
dng_timer::~dng_timer ()
{
if (!gDNGShowTimers)
return;
real64 totalTime = TickTimeInSeconds () - fStartTime;
fprintf (stderr, "%s: %0.3f sec\n", fMessage, totalTime);
}
/*****************************************************************************/
real64 MaxSquaredDistancePointToRect (const dng_point_real64 &point,
const dng_rect_real64 &rect)
{
real64 distSqr = DistanceSquared (point,
rect.TL ());
distSqr = Max_real64 (distSqr,
DistanceSquared (point,
rect.BL ()));
distSqr = Max_real64 (distSqr,
DistanceSquared (point,
rect.BR ()));
distSqr = Max_real64 (distSqr,
DistanceSquared (point,
rect.TR ()));
return distSqr;
}
/*****************************************************************************/
real64 MaxDistancePointToRect (const dng_point_real64 &point,
const dng_rect_real64 &rect)
{
return sqrt (MaxSquaredDistancePointToRect (point,
rect));
}
/*****************************************************************************/
dng_dither::dng_dither ()
: fNoiseBuffer ()
{
const uint32 kSeed = 1;
fNoiseBuffer.Allocate (kRNGSize2D * sizeof (uint16));
uint16 *buffer = fNoiseBuffer.Buffer_uint16 ();
uint32 seed = kSeed;
for (uint32 i = 0; i < kRNGSize2D; i++)
{
seed = DNG_Random (seed);
buffer [i] = (uint16) (seed);
}
}
/******************************************************************************/
const dng_dither & dng_dither::Get ()
{
static dng_dither dither;
return dither;
}
/*****************************************************************************/
void HistogramArea (dng_host & /* host */,
const dng_image &image,
const dng_rect &area,
uint32 *hist,
uint32 maxValue,
uint32 plane)
{
DNG_ASSERT (image.PixelType () == ttShort, "Unsupported pixel type");
DoZeroBytes (hist, (maxValue + 1) * (uint32) sizeof (uint32));
dng_rect tile;
dng_tile_iterator iter (image, area);
while (iter.GetOneTile (tile))
{
dng_const_tile_buffer buffer (image, tile);
const void *sPtr = buffer.ConstPixel (tile.t,
tile.l,
plane);
uint32 count0 = 1;
uint32 count1 = tile.H ();
uint32 count2 = tile.W ();
int32 step0 = 0;
int32 step1 = buffer.fRowStep;
int32 step2 = buffer.fColStep;
OptimizeOrder (sPtr,
buffer.fPixelSize,
count0,
count1,
count2,
step0,
step1,
step2);
DNG_ASSERT (count0 == 1, "OptimizeOrder logic error");
const uint16 *s1 = (const uint16 *) sPtr;
for (uint32 row = 0; row < count1; row++)
{
if (maxValue == 0x0FFFF && step2 == 1)
{
for (uint32 col = 0; col < count2; col++)
{
uint32 x = s1 [col];
hist [x] ++;
}
}
else
{
const uint16 *s2 = s1;
for (uint32 col = 0; col < count2; col++)
{
uint32 x = s2 [0];
if (x <= maxValue)
{
hist [x] ++;
}
s2 += step2;
}
}
s1 += step1;
}
}
}
/*****************************************************************************/
class dng_limit_float_depth_task: public dng_area_task
{
private:
const dng_image &fSrcImage;
dng_image &fDstImage;
uint32 fBitDepth;
real32 fScale;
public:
dng_limit_float_depth_task (const dng_image &srcImage,
dng_image &dstImage,
uint32 bitDepth,
real32 scale);
virtual dng_rect RepeatingTile1 () const
{
return fSrcImage.RepeatingTile ();
}
virtual dng_rect RepeatingTile2 () const
{
return fDstImage.RepeatingTile ();
}
virtual void Process (uint32 threadIndex,
const dng_rect &tile,
dng_abort_sniffer *sniffer);
};
/*****************************************************************************/
dng_limit_float_depth_task::dng_limit_float_depth_task (const dng_image &srcImage,
dng_image &dstImage,
uint32 bitDepth,
real32 scale)
: fSrcImage (srcImage)
, fDstImage (dstImage)
, fBitDepth (bitDepth)
, fScale (scale)
{
}
/*****************************************************************************/
void dng_limit_float_depth_task::Process (uint32 /* threadIndex */,
const dng_rect &tile,
dng_abort_sniffer * /* sniffer */)
{
dng_const_tile_buffer srcBuffer (fSrcImage, tile);
dng_dirty_tile_buffer dstBuffer (fDstImage, tile);
uint32 count0 = tile.H ();
uint32 count1 = tile.W ();
uint32 count2 = fDstImage.Planes ();
int32 sStep0 = srcBuffer.fRowStep;
int32 sStep1 = srcBuffer.fColStep;
int32 sStep2 = srcBuffer.fPlaneStep;
int32 dStep0 = dstBuffer.fRowStep;
int32 dStep1 = dstBuffer.fColStep;
int32 dStep2 = dstBuffer.fPlaneStep;
const void *sPtr = srcBuffer.ConstPixel (tile.t,
tile.l,
0);
void *dPtr = dstBuffer.DirtyPixel (tile.t,
tile.l,
0);
OptimizeOrder (sPtr,
dPtr,
srcBuffer.fPixelSize,
dstBuffer.fPixelSize,
count0,
count1,
count2,
sStep0,
sStep1,
sStep2,
dStep0,
dStep1,
dStep2);
const real32 *sPtr0 = (const real32 *) sPtr;
real32 *dPtr0 = ( real32 *) dPtr;
real32 scale = fScale;
bool limit16 = (fBitDepth == 16);
bool limit24 = (fBitDepth == 24);
for (uint32 index0 = 0; index0 < count0; index0++)
{
const real32 *sPtr1 = sPtr0;
real32 *dPtr1 = dPtr0;
for (uint32 index1 = 0; index1 < count1; index1++)
{
// If the scale is a NOP, and the data is packed solid, we can just do memory
// copy.
if (scale == 1.0f && sStep2 == 1 && dStep2 == 1)
{
if (dPtr1 != sPtr1) // srcImage != dstImage
{
memcpy (dPtr1, sPtr1, count2 * (uint32) sizeof (real32));
}
}
else
{
const real32 *sPtr2 = sPtr1;
real32 *dPtr2 = dPtr1;
for (uint32 index2 = 0; index2 < count2; index2++)
{
real32 x = sPtr2 [0];
x *= scale;
dPtr2 [0] = x;
sPtr2 += sStep2;
dPtr2 += dStep2;
}
}
// The data is now in the destination buffer.
if (limit16)
{
uint32 *dPtr2 = (uint32 *) dPtr1;
for (uint32 index2 = 0; index2 < count2; index2++)
{
uint32 x = dPtr2 [0];
uint16 y = DNG_FloatToHalf (x);
x = DNG_HalfToFloat (y);
dPtr2 [0] = x;
dPtr2 += dStep2;
}
}
else if (limit24)
{
uint32 *dPtr2 = (uint32 *) dPtr1;
for (uint32 index2 = 0; index2 < count2; index2++)
{
uint32 x = dPtr2 [0];
uint8 temp [3];
DNG_FloatToFP24 (x, temp);
x = DNG_FP24ToFloat (temp);
dPtr2 [0] = x;
dPtr2 += dStep2;
}
}
sPtr1 += sStep1;
dPtr1 += dStep1;
}
sPtr0 += sStep0;
dPtr0 += dStep0;
}
}
/******************************************************************************/
void LimitFloatBitDepth (dng_host &host,
const dng_image &srcImage,
dng_image &dstImage,
uint32 bitDepth,
real32 scale)
{
DNG_ASSERT (srcImage.PixelType () == ttFloat, "Floating point image expected");
DNG_ASSERT (dstImage.PixelType () == ttFloat, "Floating point image expected");
dng_limit_float_depth_task task (srcImage,
dstImage,
bitDepth,
scale);
host.PerformAreaTask (task, dstImage.Bounds ());
}
/*****************************************************************************/