raze-gles/source/glbackend/gl_palmanager.cpp

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/*
** gl_palmanager.cpp
** Palette management
**
**---------------------------------------------------------------------------
** Copyright 2019 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 <memory>
#include "m_crc32.h"
#include "glbackend.h"
#include "baselayer.h"
#include "resourcefile.h"
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#include "imagehelpers.h"
#include "v_font.h"
#include "palette.h"
#include "build.h"
//===========================================================================
//
// This class manages the hardware data for the indexed render mode.
//
//===========================================================================
PaletteManager::~PaletteManager()
{
DeleteAll();
}
//===========================================================================
//
//
//
//===========================================================================
void PaletteManager::DeleteAll()
{
for (auto& pal : palettetextures)
{
if (pal) delete pal;
pal = nullptr;
}
for (auto& pal : palswaptextures)
{
if (pal) delete pal;
pal = nullptr;
}
lastindex = ~0u;
lastsindex = ~0u;
}
//===========================================================================
//
//
//
//===========================================================================
void PaletteManager::BindPalette(int index)
{
auto palettedata = GPalette.GetTranslation(Translation_BasePalettes, index);
if (palettedata == nullptr)
{
index = 0;
palettedata = GPalette.GetTranslation(Translation_BasePalettes, index);
};
if (palettedata)
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{
if (index != lastindex)
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{
lastindex = index;
if (palettetextures[index] == nullptr)
{
auto p = GLInterface.NewTexture();
p->CreateTexture(256, 1, FHardwareTexture::TrueColor, false);
p->LoadTexture((uint8_t*)palettedata->Palette);
p->SetSampler(SamplerNoFilterClampXY);
palettetextures[index] = p;
}
inst->BindTexture(2, palettetextures[index]);
}
}
}
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//===========================================================================
//
//
//
//===========================================================================
void PaletteManager::BindPalswap(int index)
{
if (LookupTables[index].Len() == 0) index = 0;
if (LookupTables[index].Len() > 0)
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{
if (index != lastsindex)
{
lastsindex = index;
if (palswaptextures[index] == nullptr)
{
auto p = GLInterface.NewTexture();
p->CreateTexture(256, numshades, FHardwareTexture::Indexed, false);
p->LoadTexture((uint8_t*)LookupTables[index].GetChars());
p->SetSampler(SamplerNoFilterClampXY);
palswaptextures[index] = p;
}
inst->BindTexture(1, palswaptextures[index]);
inst->SetFadeColor(PalEntry(palookupfog[index].r, palookupfog[index].g, palookupfog[index].b));
}
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}
}
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