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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/** \file
* \ingroup imbdds
*/
/*
* This file is based on a similar file from the NVIDIA texture tools
* (http://nvidia-texture-tools.googlecode.com/)
*
* Original license from NVIDIA follows.
*/
// Copyright NVIDIA Corporation 2007 -- Ignacio Castano <icastano@nvidia.com>
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#pragma once
#include <ColorBlock.h>
#include <Common.h>
#include <Image.h>
#include <Stream.h>
struct DDSPixelFormat {
uint size;
uint flags;
uint fourcc;
uint bitcount;
uint rmask;
uint gmask;
uint bmask;
uint amask;
};
struct DDSCaps {
uint caps1;
uint caps2;
uint caps3;
uint caps4;
};
/// DDS file header for DX10.
struct DDSHeader10 {
uint dxgiFormat;
uint resourceDimension;
uint miscFlag;
uint arraySize;
uint reserved;
};
/// DDS file header.
struct DDSHeader {
uint fourcc;
uint size;
uint flags;
uint height;
uint width;
uint pitch;
uint depth;
uint mipmapcount;
uint reserved[11];
DDSPixelFormat pf;
DDSCaps caps;
uint notused;
DDSHeader10 header10;
// Helper methods.
DDSHeader();
void setWidth(uint w);
void setHeight(uint h);
void setDepth(uint d);
void setMipmapCount(uint count);
void setTexture2D();
void setTexture3D();
void setTextureCube();
void setLinearSize(uint size);
void setPitch(uint pitch);
void setFourCC(uint8 c0, uint8 c1, uint8 c2, uint8 c3);
void setFormatCode(uint code);
void setSwizzleCode(uint8 c0, uint8 c1, uint8 c2, uint8 c3);
void setPixelFormat(uint bitcount, uint rmask, uint gmask, uint bmask, uint amask);
void setDX10Format(uint format);
void setNormalFlag(bool b);
void setSrgbFlag(bool b);
void setHasAlphaFlag(bool b);
void setUserVersion(int version);
/*void swapBytes();*/
bool hasDX10Header() const;
uint signature() const;
uint toolVersion() const;
uint userVersion() const;
bool isNormalMap() const;
bool isSrgb() const;
bool hasAlpha() const;
uint d3d9Format() const;
};
/// DirectDraw Surface. (DDS)
class DirectDrawSurface {
public:
DirectDrawSurface(unsigned char *mem, uint size);
~DirectDrawSurface();
bool isValid() const;
bool isSupported() const;
bool hasAlpha() const;
uint mipmapCount() const;
uint fourCC() const;
uint width() const;
uint height() const;
uint depth() const;
bool isTexture1D() const;
bool isTexture2D() const;
bool isTexture3D() const;
bool isTextureCube() const;
void setNormalFlag(bool b);
void setHasAlphaFlag(bool b);
void setUserVersion(int version);
void mipmap(Image *img, uint f, uint m);
void *readData(uint &size);
// void mipmap(FloatImage *img, uint f, uint m);
void printInfo() const;
private:
uint blockSize() const;
uint faceSize() const;
uint mipmapSize(uint m) const;
uint offset(uint f, uint m);
void readLinearImage(Image *img);
void readBlockImage(Image *img);
void readBlock(ColorBlock *rgba);
private:
Stream stream; // memory where DDS file resides
DDSHeader header;
};
void mem_read(Stream &mem, DDSPixelFormat &pf);
void mem_read(Stream &mem, DDSCaps &caps);
void mem_read(Stream &mem, DDSHeader &header);
void mem_read(Stream &mem, DDSHeader10 &header);
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