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- started separating the texture class from the image format handlers.

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Christoph Oelckers 2018-12-08 23:28:35 +01:00
commit 5eab944157
16 changed files with 297 additions and 129 deletions
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src/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 "v_video.h"
#include "bitmap.h"
#include "image.h"
//===========================================================================
//
// the default just returns an empty texture.
//
//===========================================================================
TArray<uint8_t> FImageSource::Get8BitPixels(bool alphatex)
{
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::CopyPixels(FBitmap *bmp)
{
PalEntry *palette = screen->GetPalette();
for(int i=1;i<256;i++) palette[i].a = 255; // set proper alpha values
auto ppix = Get8BitPixels(false); // should use composition cache
bmp->CopyPixelData(0, 0, ppix.Data(), Width, Height, Height, 1, 0, palette, nullptr);
for(int i=1;i<256;i++) palette[i].a = 0;
return 0;
}
int FImageSource::CopyTranslatedPixels(FBitmap *bmp, PalEntry *remap)
{
auto ppix = Get8BitPixels(false); // should use composition cache
bmp->CopyPixelData(0, 0, ppix.Data(), Width, Height, Height, 1, 0, remap, nullptr);
return 0;
}