raze/source/blood/src/screen.cpp
2019-09-20 00:42:45 +02:00

286 lines
7.2 KiB
C++

//-------------------------------------------------------------------------
/*
Copyright (C) 2010-2019 EDuke32 developers and contributors
Copyright (C) 2019 Nuke.YKT
This file is part of NBlood.
NBlood is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License version 2
as published by the Free Software Foundation.
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.
*/
//-------------------------------------------------------------------------
#include <string.h>
#include "a.h"
#include "build.h"
#include "colmatch.h"
#include "common_game.h"
#include "blood.h"
#include "config.h"
#include "resource.h"
#include "screen.h"
LOADITEM PLU[15] = {
{ 0, "NORMAL" },
{ 1, "SATURATE" },
{ 2, "BEAST" },
{ 3, "TOMMY" },
{ 4, "SPIDER3" },
{ 5, "GRAY" },
{ 6, "GRAYISH" },
{ 7, "SPIDER1" },
{ 8, "SPIDER2" },
{ 9, "FLAME" },
{ 10, "COLD" },
{ 11, "P1" },
{ 12, "P2" },
{ 13, "P3" },
{ 14, "P4" }
};
LOADITEM PAL[5] = {
{ 0, "BLOOD" },
{ 1, "WATER" },
{ 2, "BEAST" },
{ 3, "SEWER" },
{ 4, "INVULN1" }
};
bool DacInvalid = true;
static char(*gammaTable)[256];
RGB curDAC[256];
RGB baseDAC[256];
static RGB fromDAC[256];
static RGB toRGB;
static RGB *palTable[5];
static int curPalette;
static int curGamma;
int gGammaLevels;
bool gFogMode = false;
void scrResetPalette(void)
{
paletteSetColorTable(0, (uint8_t*)palTable[0]);
}
void gSetDacRange(int start, int end, RGB *pPal)
{
UNREFERENCED_PARAMETER(start);
UNREFERENCED_PARAMETER(end);
if (videoGetRenderMode() == REND_CLASSIC)
{
memcpy(palette, pPal, sizeof(palette));
videoSetPalette(gBrightness>>2, 0, 0);
}
}
void scrLoadPLUs(void)
{
if (gFogMode)
{
DICTNODE *pFog = gSysRes.Lookup("FOG", "FLU");
if (!pFog)
ThrowError("FOG.FLU not found");
palookup[0] = (char*)gSysRes.Lock(pFog);
for (int i = 0; i < 15; i++)
palookup[PLU[i].id] = palookup[0];
parallaxvisibility = 3072;
return;
}
for (int i = 0; i < 15; i++)
{
DICTNODE *pPlu = gSysRes.Lookup(PLU[i].name, "PLU");
if (!pPlu)
ThrowError("%s.PLU not found", PLU[i].name);
if (pPlu->size / 256 != 64)
ThrowError("Incorrect PLU size");
palookup[PLU[i].id] = (char*)gSysRes.Lock(pPlu);
}
#ifdef USE_OPENGL
palookupfog[1].r = 255;
palookupfog[1].g = 255;
palookupfog[1].b = 255;
#endif
}
#ifdef USE_OPENGL
glblend_t const bloodglblend =
{
{
{ 1.f/3.f, BLENDFACTOR_SRC_ALPHA, BLENDFACTOR_ONE_MINUS_SRC_ALPHA, 0 },
{ 2.f/3.f, BLENDFACTOR_SRC_ALPHA, BLENDFACTOR_ONE_MINUS_SRC_ALPHA, 0 },
},
};
#endif
void scrLoadPalette(void)
{
paletteloaded = 0;
initprintf("Loading palettes\n");
for (int i = 0; i < 5; i++)
{
DICTNODE *pPal = gSysRes.Lookup(PAL[i].name, "PAL");
if (!pPal)
ThrowError("%s.PAL not found (RFF files may be wrong version)", PAL[i].name);
palTable[PAL[i].id] = (RGB*)gSysRes.Lock(pPal);
paletteSetColorTable(PAL[i].id, (uint8_t*)palTable[PAL[i].id]);
}
memcpy(palette, palTable[0], sizeof(palette));
numshades = 64;
paletteloaded |= PALETTE_MAIN;
scrLoadPLUs();
paletteloaded |= PALETTE_SHADE;
initprintf("Loading translucency table\n");
DICTNODE *pTrans = gSysRes.Lookup("TRANS", "TLU");
if (!pTrans)
ThrowError("TRANS.TLU not found");
blendtable[0] = (char*)gSysRes.Lock(pTrans);
paletteloaded |= PALETTE_TRANSLUC;
#ifdef USE_OPENGL
for (auto & x : glblend)
x = bloodglblend;
#endif
initfastcolorlookup_palette(palette);
palettePostLoadTables();
}
void scrSetPalette(int palId)
{
curPalette = palId;
scrSetGamma(0/*curGamma*/);
}
void scrSetGamma(int nGamma)
{
dassert(nGamma < gGammaLevels);
curGamma = nGamma;
for (int i = 0; i < 256; i++)
{
baseDAC[i].red = gammaTable[curGamma][palTable[curPalette][i].red];
baseDAC[i].green = gammaTable[curGamma][palTable[curPalette][i].green];
baseDAC[i].blue = gammaTable[curGamma][palTable[curPalette][i].blue];
}
DacInvalid = 1;
}
void scrSetupFade(char red, char green, char blue)
{
memcpy(fromDAC, curDAC, sizeof(fromDAC));
toRGB.red = red;
toRGB.green = green;
toRGB.blue = blue;
}
void scrSetupUnfade(void)
{
memcpy(fromDAC, baseDAC, sizeof(fromDAC));
}
void scrFadeAmount(int amount)
{
for (int i = 0; i < 256; i++)
{
curDAC[i].red = interpolate(fromDAC[i].red, toRGB.red, amount);
curDAC[i].green = interpolate(fromDAC[i].green, toRGB.green, amount);
curDAC[i].blue = interpolate(fromDAC[i].blue, toRGB.blue, amount);
}
gSetDacRange(0, 256, curDAC);
}
void scrSetDac(void)
{
if (DacInvalid)
gSetDacRange(0, 256, baseDAC);
DacInvalid = 0;
}
void scrInit(void)
{
initprintf("Initializing engine\n");
#ifdef USE_OPENGL
glrendmode = REND_POLYMOST;
#endif
engineInit();
curPalette = 0;
curGamma = 0;
initprintf("Loading gamma correction table\n");
DICTNODE *pGamma = gSysRes.Lookup("gamma", "DAT");
if (!pGamma)
ThrowError("Gamma table not found");
gGammaLevels = pGamma->size / 256;
gammaTable = (char(*)[256])gSysRes.Lock(pGamma);
}
void scrUnInit(void)
{
memset(palookup, 0, sizeof(palookup));
memset(blendtable, 0, sizeof(blendtable));
engineUnInit();
}
void scrSetGameMode(int vidMode, int XRes, int YRes, int nBits)
{
videoResetMode();
//videoSetGameMode(vidMode, XRes, YRes, nBits, 0);
if (videoSetGameMode(vidMode, XRes, YRes, nBits, 0) < 0)
{
initprintf("Failure setting video mode %dx%dx%d %s! Trying next mode...\n", XRes, YRes,
nBits, vidMode ? "fullscreen" : "windowed");
int resIdx = 0;
for (int i=0; i < validmodecnt; i++)
{
if (validmode[i].xdim == XRes && validmode[i].ydim == YRes)
{
resIdx = i;
break;
}
}
int const savedIdx = resIdx;
int bpp = nBits;
while (videoSetGameMode(0, validmode[resIdx].xdim, validmode[resIdx].ydim, bpp, 0) < 0)
{
initprintf("Failure setting video mode %dx%dx%d windowed! Trying next mode...\n",
validmode[resIdx].xdim, validmode[resIdx].ydim, bpp);
if (++resIdx == validmodecnt)
{
if (bpp == 8)
ThrowError("Fatal error: unable to set any video mode!");
resIdx = savedIdx;
bpp = 8;
}
}
gSetup.xdim = validmode[resIdx].xdim;
gSetup.ydim = validmode[resIdx].ydim;
gSetup.bpp = bpp;
}
videoClearViewableArea(0);
scrNextPage();
scrSetPalette(curPalette);
}
void scrNextPage(void)
{
videoNextPage();
}