diff options
Diffstat (limited to 'noiseutils')
| -rw-r--r-- | noiseutils/COPYING.txt | 504 | ||||
| -rw-r--r-- | noiseutils/noiseutils.cpp | 1298 | ||||
| -rw-r--r-- | noiseutils/noiseutils.h | 2540 | ||||
| -rw-r--r-- | noiseutils/readme.txt | 4 | ||||
| -rw-r--r-- | noiseutils/warnings.diff | 56 |
5 files changed, 0 insertions, 4402 deletions
diff --git a/noiseutils/COPYING.txt b/noiseutils/COPYING.txt deleted file mode 100644 index cbee875..0000000 --- a/noiseutils/COPYING.txt +++ /dev/null @@ -1,504 +0,0 @@ - GNU LESSER GENERAL PUBLIC LICENSE
- Version 2.1, February 1999
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diff --git a/noiseutils/noiseutils.cpp b/noiseutils/noiseutils.cpp deleted file mode 100644 index ddcac1b..0000000 --- a/noiseutils/noiseutils.cpp +++ /dev/null @@ -1,1298 +0,0 @@ -// noiseutils.cpp
-//
-// Copyright (C) 2003-2005 Jason Bevins
-//
-// This library is free software; you can redistribute it and/or modify it
-// under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation; either version 2.1 of the License, or (at
-// your option) any later version.
-//
-// This library is distributed in the hope that it will be useful, but WITHOUT
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-// FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
-// License (COPYING.txt) for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with this library; if not, write to the Free Software Foundation,
-// Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-//
-// The developer's email is jlbezigvins@gmzigail.com (for great email, take
-// off every 'zig'.)
-//
-
-#include <fstream>
-
-#include <noise/interp.h>
-#include <noise/mathconsts.h>
-
-#include "noiseutils.h"
-
-using namespace noise;
-using namespace noise::model;
-using namespace noise::module;
-
-// Bitmap header size.
-const int BMP_HEADER_SIZE = 54;
-
-// Direction of the light source, in compass degrees (0 = north, 90 = east,
-// 180 = south, 270 = east)
-const double DEFAULT_LIGHT_AZIMUTH = 45.0;
-
-// Amount of contrast between light and dark areas.
-const double DEFAULT_LIGHT_CONTRAST = 1.0;
-
-// Elevation of the light source above the horizon, in degrees (0 = on
-// horizon, 90 = directly overhead)
-const double DEFAULT_LIGHT_ELEVATION = 45.0;
-
-//////////////////////////////////////////////////////////////////////////////
-// Miscellaneous functions
-
-namespace noise
-{
-
- namespace utils
- {
-
- // Performs linear interpolation between two 8-bit channel values.
- inline noise::uint8 BlendChannel (const uint8 channel0,
- const uint8 channel1, float alpha)
- {
- float c0 = (float)channel0 / 255.0;
- float c1 = (float)channel1 / 255.0;
- return (noise::uint8)(((c1 * alpha) + (c0 * (1.0f - alpha))) * 255.0f);
- }
-
- // Performs linear interpolation between two colors and stores the result
- // in out.
- inline void LinearInterpColor (const Color& color0, const Color& color1,
- float alpha, Color& out)
- {
- out.alpha = BlendChannel (color0.alpha, color1.alpha, alpha);
- out.blue = BlendChannel (color0.blue , color1.blue , alpha);
- out.green = BlendChannel (color0.green, color1.green, alpha);
- out.red = BlendChannel (color0.red , color1.red , alpha);
- }
-
- // Unpacks a floating-point value into four bytes. This function is
- // specific to Intel machines. A portable version will come soon (I
- // hope.)
- inline noise::uint8* UnpackFloat (noise::uint8* bytes, float value)
- {
- noise::uint8* pBytes = (noise::uint8*)(&value);
- bytes[0] = *pBytes++;
- bytes[1] = *pBytes++;
- bytes[2] = *pBytes++;
- bytes[3] = *pBytes++;
- return bytes;
- }
-
- // Unpacks a 16-bit integer value into two bytes in little endian format.
- inline noise::uint8* UnpackLittle16 (noise::uint8* bytes,
- noise::uint16 integer)
- {
- bytes[0] = (noise::uint8)((integer & 0x00ff) );
- bytes[1] = (noise::uint8)((integer & 0xff00) >> 8 );
- return bytes;
- }
-
- // Unpacks a 32-bit integer value into four bytes in little endian format.
- inline noise::uint8* UnpackLittle32 (noise::uint8* bytes,
- noise::uint32 integer)
- {
- bytes[0] = (noise::uint8)((integer & 0x000000ff) );
- bytes[1] = (noise::uint8)((integer & 0x0000ff00) >> 8 );
- bytes[2] = (noise::uint8)((integer & 0x00ff0000) >> 16);
- bytes[3] = (noise::uint8)((integer & 0xff000000) >> 24);
- return bytes;
- }
-
- }
-
-}
-
-using namespace noise;
-
-using namespace noise::utils;
-
-//////////////////////////////////////////////////////////////////////////////
-// GradientColor class
-
-GradientColor::GradientColor ()
-{
- m_pGradientPoints = NULL;
-}
-
-GradientColor::~GradientColor ()
-{
- delete[] m_pGradientPoints;
-}
-
-void GradientColor::AddGradientPoint (double gradientPos,
- const Color& gradientColor)
-{
- // Find the insertion point for the new gradient point and insert the new
- // gradient point at that insertion point. The gradient point array will
- // remain sorted by gradient position.
- int insertionPos = FindInsertionPos (gradientPos);
- InsertAtPos (insertionPos, gradientPos, gradientColor);
-}
-
-void GradientColor::Clear ()
-{
- delete[] m_pGradientPoints;
- m_pGradientPoints = NULL;
- m_gradientPointCount = 0;
-}
-
-int GradientColor::FindInsertionPos (double gradientPos)
-{
- int insertionPos;
- for (insertionPos = 0; insertionPos < m_gradientPointCount;
- insertionPos++) {
- if (gradientPos < m_pGradientPoints[insertionPos].pos) {
- // We found the array index in which to insert the new gradient point.
- // Exit now.
- break;
- } else if (gradientPos == m_pGradientPoints[insertionPos].pos) {
- // Each gradient point is required to contain a unique gradient
- // position, so throw an exception.
- throw noise::ExceptionInvalidParam ();
- }
- }
- return insertionPos;
-}
-
-const Color& GradientColor::GetColor (double gradientPos) const
-{
- assert (m_gradientPointCount >= 2);
-
- // Find the first element in the gradient point array that has a gradient
- // position larger than the gradient position passed to this method.
- int indexPos;
- for (indexPos = 0; indexPos < m_gradientPointCount; indexPos++) {
- if (gradientPos < m_pGradientPoints[indexPos].pos) {
- break;
- }
- }
-
- // Find the two nearest gradient points so that we can perform linear
- // interpolation on the color.
- int index0 = ClampValue (indexPos - 1, 0, m_gradientPointCount - 1);
- int index1 = ClampValue (indexPos , 0, m_gradientPointCount - 1);
-
- // If some gradient points are missing (which occurs if the gradient
- // position passed to this method is greater than the largest gradient
- // position or less than the smallest gradient position in the array), get
- // the corresponding gradient color of the nearest gradient point and exit
- // now.
- if (index0 == index1) {
- m_workingColor = m_pGradientPoints[index1].color;
- return m_workingColor;
- }
-
- // Compute the alpha value used for linear interpolation.
- double input0 = m_pGradientPoints[index0].pos;
- double input1 = m_pGradientPoints[index1].pos;
- double alpha = (gradientPos - input0) / (input1 - input0);
-
- // Now perform the linear interpolation given the alpha value.
- const Color& color0 = m_pGradientPoints[index0].color;
- const Color& color1 = m_pGradientPoints[index1].color;
- LinearInterpColor (color0, color1, (float)alpha, m_workingColor);
- return m_workingColor;
-}
-
-void GradientColor::InsertAtPos (int insertionPos, double gradientPos,
- const Color& gradientColor)
-{
- // Make room for the new gradient point at the specified insertion position
- // within the gradient point array. The insertion position is determined by
- // the gradient point's position; the gradient points must be sorted by
- // gradient position within that array.
- GradientPoint* newGradientPoints;
- newGradientPoints = new GradientPoint[m_gradientPointCount + 1];
- for (int i = 0; i < m_gradientPointCount; i++) {
- if (i < insertionPos) {
- newGradientPoints[i] = m_pGradientPoints[i];
- } else {
- newGradientPoints[i + 1] = m_pGradientPoints[i];
- }
- }
- delete[] m_pGradientPoints;
- m_pGradientPoints = newGradientPoints;
- ++m_gradientPointCount;
-
- // Now that we've made room for the new gradient point within the array, add
- // the new gradient point.
- m_pGradientPoints[insertionPos].pos = gradientPos ;
- m_pGradientPoints[insertionPos].color = gradientColor;
-}
-
-//////////////////////////////////////////////////////////////////////////////
-// NoiseMap class
-
-NoiseMap::NoiseMap ()
-{
- InitObj ();
-}
-
-NoiseMap::NoiseMap (int width, int height)
-{
- InitObj ();
- SetSize (width, height);
-}
-
-NoiseMap::NoiseMap (const NoiseMap& rhs)
-{
- InitObj ();
- CopyNoiseMap (rhs);
-}
-
-NoiseMap::~NoiseMap ()
-{
- delete[] m_pNoiseMap;
-}
-
-NoiseMap& NoiseMap::operator= (const NoiseMap& rhs)
-{
- CopyNoiseMap (rhs);
-
- return *this;
-}
-
-void NoiseMap::Clear (float value)
-{
- if (m_pNoiseMap != NULL) {
- for (int y = 0; y < m_height; y++) {
- float* pDest = GetSlabPtr (0, y);
- for (int x = 0; x < m_width; x++) {
- *pDest++ = value;
- }
- }
- }
-}
-
-void NoiseMap::CopyNoiseMap (const NoiseMap& source)
-{
- // Resize the noise map buffer, then copy the slabs from the source noise
- // map buffer to this noise map buffer.
- SetSize (source.GetWidth (), source.GetHeight ());
- for (int y = 0; y < source.GetHeight (); y++) {
- const float* pSource = source.GetConstSlabPtr (0, y);
- float* pDest = GetSlabPtr (0, y);
- memcpy (pDest, pSource, (size_t)source.GetWidth () * sizeof (float));
- }
-
- // Copy the border value as well.
- m_borderValue = source.m_borderValue;
-}
-
-void NoiseMap::DeleteNoiseMapAndReset ()
-{
- delete[] m_pNoiseMap;
- InitObj ();
-}
-
-float NoiseMap::GetValue (int x, int y) const
-{
- if (m_pNoiseMap != NULL) {
- if (x >= 0 && x < m_width && y >= 0 && y < m_height) {
- return *(GetConstSlabPtr (x, y));
- }
- }
- // The coordinates specified are outside the noise map. Return the border
- // value.
- return m_borderValue;
-}
-
-void NoiseMap::InitObj ()
-{
- m_pNoiseMap = NULL;
- m_height = 0;
- m_width = 0;
- m_stride = 0;
- m_memUsed = 0;
- m_borderValue = 0.0;
-}
-
-void NoiseMap::ReclaimMem ()
-{
- size_t newMemUsage = CalcMinMemUsage (m_width, m_height);
- if (m_memUsed > newMemUsage) {
- // There is wasted memory. Create the smallest buffer that can fit the
- // data and copy the data to it.
- float* pNewNoiseMap = NULL;
- try {
- pNewNoiseMap = new float[newMemUsage];
- }
- catch (...) {
- throw noise::ExceptionOutOfMemory ();
- }
- memcpy (pNewNoiseMap, m_pNoiseMap, newMemUsage * sizeof (float));
- delete[] m_pNoiseMap;
- m_pNoiseMap = pNewNoiseMap;
- m_memUsed = newMemUsage;
- }
-}
-
-void NoiseMap::SetSize (int width, int height)
-{
- if (width < 0 || height < 0
- || width > RASTER_MAX_WIDTH || height > RASTER_MAX_HEIGHT) {
- // Invalid width or height.
- throw noise::ExceptionInvalidParam ();
- } else if (width == 0 || height == 0) {
- // An empty noise map was specified. Delete it and zero out the size
- // member variables.
- DeleteNoiseMapAndReset ();
- } else {
- // A new noise map size was specified. Allocate a new noise map buffer
- // unless the current buffer is large enough for the new noise map (we
- // don't want costly reallocations goin |