mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-11-18 10:11:50 +00:00
304 lines
8.5 KiB
C++
304 lines
8.5 KiB
C++
/*
|
|
** 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"
|
|
#include "imagehelpers.h"
|
|
|
|
//===========================================================================
|
|
//
|
|
// The palette manager will contain all palettes being used for texture
|
|
// creation. It is also responsible for creating palette textures for indexed
|
|
// rendering.
|
|
//
|
|
//===========================================================================
|
|
|
|
PaletteManager::~PaletteManager()
|
|
{
|
|
DeleteAll();
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
//
|
|
//
|
|
//===========================================================================
|
|
|
|
void PaletteManager::DeleteAll()
|
|
{
|
|
for (auto& pal : palettes)
|
|
{
|
|
if (pal.paltexture) delete pal.paltexture;
|
|
}
|
|
for (auto& pal : palswaps)
|
|
{
|
|
if (pal.swaptexture) delete pal.swaptexture;
|
|
}
|
|
if (transientpalette.paltexture) delete transientpalette.paltexture;
|
|
if (palswapTexture) delete palswapTexture;
|
|
palswapTexture = nullptr;
|
|
transientpalette.paltexture = nullptr;
|
|
transientpalette.crc32 = -1;
|
|
palettes.Reset();
|
|
palswaps.Reset();
|
|
lastindex = ~0u;
|
|
lastsindex = ~0u;
|
|
memset(palettemap, 0, sizeof(palettemap));
|
|
memset(palswapmap, 0, sizeof(palswapmap));
|
|
memset(addshade, 0, sizeof(addshade));
|
|
memset(mulshade, 0, sizeof(mulshade));
|
|
numshades = 1;
|
|
|
|
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
// Adds a new palette while looking for duplicates.
|
|
//
|
|
//===========================================================================
|
|
|
|
unsigned PaletteManager::FindPalette(const uint8_t *paldata)
|
|
{
|
|
auto crc32 = CalcCRC32(paldata, 1024);
|
|
for (unsigned int i = 0; i< palettes.Size(); i++)
|
|
{
|
|
if (crc32 == palettes[i].crc32)
|
|
{
|
|
if (!memcmp(paldata, palettes[i].colors, 1024))
|
|
{
|
|
return i;
|
|
}
|
|
}
|
|
}
|
|
PaletteData pd;
|
|
memcpy(pd.colors, paldata, 1024);
|
|
pd.crc32 = crc32;
|
|
pd.paltexture = nullptr;
|
|
pd.shadesdone = false;
|
|
return palettes.Push(pd);
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
// Adds a new palette while looking for duplicates.
|
|
//
|
|
//===========================================================================
|
|
|
|
unsigned PaletteManager::FindPalswap(const uint8_t* paldata)
|
|
{
|
|
if (paldata == nullptr) return 0;
|
|
auto crc32 = CalcCRC32(paldata, 256 * numshades);
|
|
for (unsigned int i = 0; i < palswaps.Size(); i++)
|
|
{
|
|
if (crc32 == palswaps[i].crc32)
|
|
{
|
|
if (!memcmp(paldata, palswaps[i].lookup, 256 * numshades))
|
|
{
|
|
return i;
|
|
}
|
|
}
|
|
}
|
|
PalswapData pd;
|
|
pd.lookup = paldata;
|
|
pd.crc32 = crc32;
|
|
pd.swaptexture = nullptr;
|
|
return palswaps.Push(pd);
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
//
|
|
//
|
|
//===========================================================================
|
|
|
|
void PaletteManager::SetPalette(int index, const uint8_t* data, bool transient)
|
|
{
|
|
// New palettes may only be added if declared transient or on startup.
|
|
// Otherwise this would require a renderer reset to flush out the textures affected by the change.
|
|
|
|
if (index < 0 || index > 255) return; // invalid index - ignore.
|
|
if (transient)
|
|
{
|
|
// Transient palettes do not get stored in the list because it is assumed that they won't be needed for long.
|
|
// Only clear the texture if the palette is different.
|
|
if (memcmp(data, transientpalette.colors, 1024))
|
|
{
|
|
memcpy(transientpalette.colors, data, 1024);
|
|
if (transientpalette.paltexture) delete transientpalette.paltexture;
|
|
transientpalette.paltexture = nullptr;
|
|
}
|
|
transientpalette.crc32 = index;
|
|
palettemap[index] = 0;
|
|
return;
|
|
}
|
|
palettemap[index] = FindPalette(data);
|
|
if (index == 0)
|
|
{
|
|
ImageHelpers::SetPalette((PalEntry*)data); // Palette 0 is always the reference for downconverting images
|
|
}
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
//
|
|
//
|
|
//===========================================================================
|
|
|
|
void PaletteManager::BindPalette(int index)
|
|
{
|
|
if (index == transientpalette.crc32)
|
|
{
|
|
if (transientpalette.paltexture == nullptr)
|
|
{
|
|
auto p = GLInterface.NewTexture();
|
|
p->CreateTexture(256, 1, false, false);
|
|
p->LoadTexture((uint8_t*)transientpalette.colors);
|
|
p->SetSampler(Sampler2DNoFilter);
|
|
transientpalette.paltexture = p;
|
|
}
|
|
inst->BindTexture(2, transientpalette.paltexture);
|
|
}
|
|
else if (palettemap[index] < palettes.Size())
|
|
{
|
|
auto uindex = palettemap[index];
|
|
if (uindex != lastindex)
|
|
{
|
|
lastindex = uindex;
|
|
if (palettes[uindex].paltexture == nullptr)
|
|
{
|
|
auto p = GLInterface.NewTexture();
|
|
p->CreateTexture(256, 1, false, false);
|
|
p->LoadTexture((uint8_t*)palettes[uindex].colors);
|
|
p->SetSampler(Sampler2DNoFilter);
|
|
palettes[uindex].paltexture = p;
|
|
}
|
|
inst->BindTexture(2, palettes[uindex].paltexture);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
//
|
|
//
|
|
//===========================================================================
|
|
|
|
void PaletteManager::SetPalswapData(int index, const uint8_t* data, int numshades_)
|
|
{
|
|
if (index < 0 || index > 255) return; // invalid index - ignore.
|
|
numshades = numshades_;
|
|
palswapmap[index] = FindPalswap(data);
|
|
}
|
|
|
|
//===========================================================================
|
|
//
|
|
//
|
|
//
|
|
//===========================================================================
|
|
|
|
void PaletteManager::BindPalswap(int index)
|
|
{
|
|
if (palswapmap[index] < palswaps.Size())
|
|
{
|
|
auto uindex = palswapmap[index];
|
|
if (uindex != lastsindex)
|
|
{
|
|
lastsindex = uindex;
|
|
if (palswaps[uindex].swaptexture == nullptr)
|
|
{
|
|
auto p = GLInterface.NewTexture();
|
|
p->CreateTexture(256, numshades, true, false);
|
|
p->LoadTexture((uint8_t*)palswaps[uindex].lookup);
|
|
p->SetSampler(Sampler2DNoFilter);
|
|
palswaps[uindex].swaptexture = p;
|
|
}
|
|
inst->BindTexture(1, palswaps[uindex].swaptexture);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
int PaletteManager::LookupPalette(int palette, int palswap, bool brightmap)
|
|
{
|
|
int realpal = palettemap[palette];
|
|
int realswap = palswapmap[palswap];
|
|
int combined = (brightmap? 0x1000000 : 0) + realpal * 0x10000 + realswap;
|
|
int* combinedindex = swappedpalmap.CheckKey(combined);
|
|
if (combinedindex) return *combinedindex;
|
|
|
|
PaletteData* paldata = &palettes[realpal];
|
|
PalswapData* swapdata = &palswaps[realswap];
|
|
PalEntry swappedpalette[256];
|
|
if (!brightmap)
|
|
{
|
|
for (int i = 0; i < 255; i++)
|
|
{
|
|
int swapi = swapdata->lookup[i];
|
|
swappedpalette[i] = paldata->colors[swapi];
|
|
swappedpalette[i].a = 255;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bool found = false;
|
|
memset(swappedpalette, 0, sizeof(swappedpalette));
|
|
for (int i = 0; i < 255; i++)
|
|
{
|
|
int swapi = swapdata->lookup[i];
|
|
auto swapc = paldata->colors[swapi];
|
|
if (swapc.a)
|
|
{
|
|
found = true;
|
|
swappedpalette[i] = 0xffffffff;
|
|
}
|
|
}
|
|
if (!found)
|
|
{
|
|
swappedpalmap.Insert(combined, -1);
|
|
return -1;
|
|
}
|
|
}
|
|
swappedpalette[255] = 0;
|
|
int palid = FindPalette((uint8_t*)swappedpalette);
|
|
swappedpalmap.Insert(combined, palid);
|
|
return palid;
|
|
}
|