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- added stripped down versions of GZDoom's texture classes

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We need something more manageable to deal with the textures - and the hightile code in particular needs a better backend to read the images.
This commit is contained in:
Christoph Oelckers 2019-10-05 19:28:05 +02:00
parent bedfc262c4
commit 1a5e64329f
25 changed files with 6137 additions and 6 deletions
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130
source/common/textures/image.cpp Normal file
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/*
** texture.cpp
** The base texture class
**
**---------------------------------------------------------------------------
** Copyright 2004-2007 Randy Heit
** Copyright 2006-2018 Christoph Oelckers
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. 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.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 "memarena.h"
#include "bitmap.h"
#include "image.h"
#include "files.h"
#include "cache1d.h"
int FImageSource::NextID;
//===========================================================================
//
// the default just returns an empty texture.
//
//===========================================================================
TArray<uint8_t> FImageSource::CreatePalettedPixels(int conversion)
{
TArray<uint8_t> Pixels(Width * Height, true);
memset(Pixels.Data(), 0, Width * Height);
return Pixels;
}
//===========================================================================
//
// FImageSource::CopyPixels
//
// this is the generic case that can handle
// any properly implemented texture for software rendering.
// Its drawback is that it is limited to the base palette which is
// why all classes that handle different palettes should subclass this
// method
//
//===========================================================================
int FImageSource::CopyTranslatedPixels(FBitmap *bmp, PalEntry *remap)
{
auto ppix = CreatePalettedPixels(false);
bmp->CopyPixelData(0, 0, ppix.Data(), Width, Height, Height, 1, 0, remap);
return 0;
}
int FImageSource::CopyPixels(FBitmap* bmp, int conversion)
{
return CopyTranslatedPixels(bmp, nullptr); // This should never get called for ART tiles.
}
//==========================================================================
//
//
//
//==========================================================================
typedef FImageSource * (*CreateFunc)(FileReader & file);
struct TexCreateInfo
{
CreateFunc TryCreate;
};
FImageSource *PNGImage_TryCreate(FileReader &);
FImageSource *JPEGImage_TryCreate(FileReader &);
FImageSource *DDSImage_TryCreate(FileReader &);
FImageSource *PCXImage_TryCreate(FileReader &);
FImageSource *TGAImage_TryCreate(FileReader &);
// Examines the lump contents to decide what type of texture to create,
// and creates the texture.
FImageSource * FImageSource::GetImage(const char *name)
{
static TexCreateInfo CreateInfo[] = {
{ PNGImage_TryCreate },
{ JPEGImage_TryCreate },
{ DDSImage_TryCreate },
{ PCXImage_TryCreate },
{ TGAImage_TryCreate },
{ nullptr }
};
auto data = kopenFileReader(name, 0);
if (!data.isOpen()) return nullptr;
for (size_t i = 0; CreateInfo[i].TryCreate; i++)
{
auto image = CreateInfo[i].TryCreate(data);
if (image != nullptr)
{
image->Name = name;
return image;
}
}
return nullptr;
}