464 lines
11 KiB
C
464 lines
11 KiB
C
/*
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This file is part of Warzone 2100.
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Copyright (C) 1999-2004 Eidos Interactive
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Copyright (C) 2005-2007 Warzone Resurrection Project
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Warzone 2100 is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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Warzone 2100 is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Warzone 2100; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "lib/ivis_common/rendfunc.h"
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#include "lib/ivis_common/rendmode.h"
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#include "lib/ivis_common/piepalette.h"
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#include "lib/ivis_common/ivispatch.h"
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#include "lib/framework/fractions.h"
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#include "lib/ivis_common/pieclip.h"
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/***************************************************************************/
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/*
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* Local Variables
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*/
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/***************************************************************************/
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UBYTE aTransTable[256];
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UBYTE aTransTable2[256]; // 2 trans tabels so we can have 2 transparancy colours without slowdown.
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UBYTE aTransTable3[256]; // 3 trans tabels so we can have 3 transparancy colours without slowdown.
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UBYTE aTransTable4[256]; // 4 trans tabels so we can have 4 transparancy colours without slowdown.
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/* Set default transparency filter to green pass */
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UDWORD transFilter = TRANS_GREY;
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//static int g_mode = REND_UNDEFINED;
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static IMAGEFILE *MouseImageFile;
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static UWORD MouseImageID;
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/***************************************************************************/
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/*
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* Local ProtoTypes
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*/
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/***************************************************************************/
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void iVBlitPixelTransRect(UDWORD x0, UDWORD y0, UDWORD x1, UDWORD y1);
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/* Build a transparency look up table for the interface */
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static void pie_BuildTransTable(UDWORD tableNo);
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// dummy prototypes for pointer build functions
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void (*iV_pBox)(int x0, int y0, int x1, int y1, Uint32 colour);
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void (*iV_pBoxFill)(int x0, int y0, int x1, int y1, Uint32 colour);
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//*************************************************************************
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//*************************************************************************
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//*************************************************************************
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//*************************************************************************
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/***************************************************************************/
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/*
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* Source
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*/
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/***************************************************************************/
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//*************************************************************************
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void SetTransFilter(UDWORD rgb,UDWORD tablenumber)
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{
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transFilter = rgb;
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pie_BuildTransTable(tablenumber); /* Need to recalculate the transparency table */
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}
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//*************************************************************************
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void TransBoxFill(UDWORD x0, UDWORD y0, UDWORD x1, UDWORD y1)
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{
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UDWORD *screen;
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UDWORD fourPixels;
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UDWORD output;
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UDWORD width;
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UDWORD i,j;
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/* Note x1 must be greater than x0 */
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width = x1-x0;
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/* Not worth it, so use pixel version */
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if( (width) < 8)
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{
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iVBlitPixelTransRect(x0,y0,x1,y1);
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}
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else
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{
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/* Get a handle on the current back buffer */
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for(i=y0; i<y1; i++)
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{
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screen = (UDWORD *)(psRendSurface->buffer+psRendSurface->scantable[i] + x0);
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/* We need to go through width/4 times */
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for (j=x0; j<x1; j+=4)
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{
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fourPixels = *screen;
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output = (UDWORD)aTransTable[(UBYTE)((fourPixels & 0xff000000)>>24)];
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output = output<<8;
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output = output ^ (UDWORD)aTransTable[(UBYTE)((fourPixels & 0x00ff0000)>>16)];
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output = output<<8;
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output = output ^ (UDWORD)aTransTable[(UBYTE)((fourPixels & 0x0000ff00)>>8)];
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output = output<<8;
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output = output ^ (UDWORD)aTransTable[(UBYTE)(fourPixels & 0x000000ff)];
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*screen++ = output;
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}
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}
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}
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}
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//*************************************************************************
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void DrawImage(IMAGEFILE *ImageFile,UWORD ID,int x,int y)
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{
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IMAGEDEF *Image;
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iBitmap *Bmp;
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UDWORD Modulus;
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assert(ID < ImageFile->Header.NumImages);
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Image = &ImageFile->ImageDefs[ID];
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Modulus = ImageFile->TexturePages[Image->TPageID].width;
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Bmp = ImageFile->TexturePages[Image->TPageID].bmp;
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Bmp += ((UDWORD)Image->Tu) + ((UDWORD)Image->Tv) * Modulus;
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iV_ppBitmap(Bmp,
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x+Image->XOffset,y+Image->YOffset,
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Image->Width,Image->Height,Modulus);
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}
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//*************************************************************************
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void DrawImageRect(IMAGEFILE *ImageFile,UWORD ID,int x,int y,int x0,int y0,int Width,int Height)
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{
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UDWORD RepWidth = 1;
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UDWORD RepWidthRemain = 0;
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UDWORD RepHeight = 1;
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UDWORD RepHeightRemain = 0;
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BOOL Tiled = FALSE;
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UDWORD w,h;
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UDWORD tx,ty;
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IMAGEDEF *Image;
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iBitmap *Bmp;
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UDWORD Modulus;
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assert(ID < ImageFile->Header.NumImages);
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Image = &ImageFile->ImageDefs[ID];
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Modulus = ImageFile->TexturePages[Image->TPageID].width;
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Bmp = ImageFile->TexturePages[Image->TPageID].bmp;
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Bmp += ((UDWORD)Image->Tu) + ((UDWORD)Image->Tv) * Modulus;
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if(Width + x0 > Image->Width) {
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RepWidth = Width / Image->Width;
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RepWidthRemain = Width - RepWidth * Image->Width;
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Width = Image->Width;
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Tiled = TRUE;
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}
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if(Height+ y0 > Image->Height) {
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RepHeight = Height / Image->Height;
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RepHeightRemain = Height - RepHeight * Image->Height;
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Height = Image->Height;
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Tiled = TRUE;
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}
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if(Tiled) {
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ty = y;
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for(h=0; h<RepHeight; h++) {
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tx = x;
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for(w=0; w<RepWidth; w++) {
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iV_ppBitmap(Bmp,
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tx+Image->XOffset,ty+Image->YOffset,
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Width,Height,Modulus);
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tx += Width;
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}
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if(RepWidthRemain) {
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iV_ppBitmap(Bmp,
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tx+Image->XOffset,ty+Image->YOffset,
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RepWidthRemain,Height,Modulus);
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}
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ty += Height;
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}
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if(RepHeightRemain) {
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tx = x;
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for(w=0; w<RepWidth; w++) {
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iV_ppBitmap(Bmp,
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tx+Image->XOffset,ty+Image->YOffset,
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Width,RepHeightRemain,Modulus);
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tx += Width;
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}
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if(RepWidthRemain) {
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iV_ppBitmap(Bmp,
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tx+Image->XOffset,ty+Image->YOffset,
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RepWidthRemain,RepHeightRemain,Modulus);
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}
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}
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} else {
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iV_ppBitmap(Bmp,
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x+Image->XOffset,y+Image->YOffset,
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Width,Height,Modulus);
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}
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}
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//*************************************************************************
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void DrawTransImage(IMAGEFILE *ImageFile,UWORD ID,int x,int y)
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{
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IMAGEDEF *Image;
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iBitmap *Bmp;
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UDWORD Modulus;
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assert(ID < ImageFile->Header.NumImages);
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Image = &ImageFile->ImageDefs[ID];
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Modulus = ImageFile->TexturePages[Image->TPageID].width;
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Bmp = ImageFile->TexturePages[Image->TPageID].bmp;
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Bmp += ((UDWORD)Image->Tu) + ((UDWORD)Image->Tv) * Modulus;
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iV_ppBitmapTrans(Bmp,x+Image->XOffset,y+Image->YOffset,
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Image->Width,Image->Height,Modulus);
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}
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//*************************************************************************
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void DrawTransImageRect(IMAGEFILE *ImageFile,UWORD ID,int x,int y,int x0,int y0,int Width,int Height)
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{
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UDWORD RepWidth = 1;
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UDWORD RepWidthRemain = 0;
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UDWORD RepHeight = 1;
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UDWORD RepHeightRemain = 0;
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BOOL Tiled = FALSE;
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UDWORD w,h;
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UDWORD tx,ty;
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IMAGEDEF *Image;
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iBitmap *Bmp;
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UDWORD Modulus;
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assert(ID < ImageFile->Header.NumImages);
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Image = &ImageFile->ImageDefs[ID];
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Modulus = ImageFile->TexturePages[Image->TPageID].width;
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Bmp = ImageFile->TexturePages[Image->TPageID].bmp;
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Bmp += ((UDWORD)Image->Tu) + ((UDWORD)Image->Tv) * Modulus;
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if(Width + x0 > Image->Width) {
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RepWidth = Width / Image->Width;
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RepWidthRemain = Width - RepWidth * Image->Width;
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Width = Image->Width;
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Tiled = TRUE;
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}
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if(Height+ y0 > Image->Height) {
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RepHeight = Height / Image->Height;
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RepHeightRemain = Height - RepHeight * Image->Height;
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Height = Image->Height;
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Tiled = TRUE;
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}
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if(Tiled) {
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ty = y;
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for(h=0; h<RepHeight; h++) {
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tx = x;
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for(w=0; w<RepWidth; w++) {
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iV_ppBitmapTrans(Bmp,
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tx+Image->XOffset,ty+Image->YOffset,
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Width,Height,Modulus);
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tx += Width;
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}
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if(RepWidthRemain) {
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iV_ppBitmapTrans(Bmp,
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tx+Image->XOffset,ty+Image->YOffset,
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RepWidthRemain,Height,Modulus);
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}
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ty += Height;
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}
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if(RepHeightRemain) {
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tx = x;
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for(w=0; w<RepWidth; w++) {
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iV_ppBitmapTrans(Bmp,
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tx+Image->XOffset,ty+Image->YOffset,
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Width,RepHeightRemain,Modulus);
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tx += Width;
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}
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if(RepWidthRemain) {
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iV_ppBitmapTrans(Bmp,
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tx+Image->XOffset,ty+Image->YOffset,
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RepWidthRemain,RepHeightRemain,Modulus);
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}
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}
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} else {
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iV_ppBitmapTrans(Bmp,
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x+Image->XOffset,y+Image->YOffset,
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Width,Height,Modulus);
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}
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}
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//*************************************************************************
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void iV_SetMousePointer(IMAGEFILE *ImageFile,UWORD ImageID)
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{
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ASSERT( ImageID < ImageFile->Header.NumImages,"iV_SetMousePointer : Invalid image id" );
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MouseImageFile = ImageFile;
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MouseImageID = ImageID;
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}
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UDWORD iV_GetMouseFrame(void)
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{
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return MouseImageID;
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}
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void iV_DrawMousePointer(int x,int y)
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{
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iV_DrawImage(MouseImageFile,MouseImageID,x,y);
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}
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//*************************************************************************
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//
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// local functions
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//
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//*************************************************************************
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void iVBlitPixelTransRect(UDWORD x0, UDWORD y0, UDWORD x1, UDWORD y1)
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{
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UBYTE *screen;
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UBYTE present;
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UDWORD i,j;
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/* Do a horizontal strip at a time. We're going x inside y to take advantage of the scan table */
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for (i=y0; i<y1; i++)
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{
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/* Get this outside loop cos it's invariant to each scan line */
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screen = (UBYTE *)psRendSurface->buffer + psRendSurface->scantable[i] + x0;
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for(j=x0; j<x1; j++)
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{
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/* What colour is there at the moment? */
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present = *screen;
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/* Write in the new improved greener version */
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*screen++ = aTransTable[present];
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}
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}
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}
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//*************************************************************************
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static void pie_BuildTransTable(UDWORD tableNo)
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{
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UDWORD i;
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UBYTE red = 0, green = 0, blue = 0;
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iColour* psPalette = pie_GetGamePal();
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// Step through all the palette entries for the currently selected iVPALETTE
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for(i=0; i<256; i++)
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{
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switch (transFilter)
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{
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case TINT_BLUE:
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red = (psPalette[i].r * 5) / 8;
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blue = (psPalette[i].b * 7) / 8;
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green = (psPalette[i].g * 5) / 8;
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break;
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case TINT_DEEPBLUE:
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red = (psPalette[i].r * 3) / 8;
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blue = (psPalette[i].b * 5) / 8;
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green = (psPalette[i].g * 3) / 8;
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break;
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case TRANS_GREY:
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red = psPalette[i].r/2;
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blue = psPalette[i].b/2;
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green = psPalette[i].g/2;
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break;
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case TRANS_BLUE:
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red = psPalette[i].r/2;
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blue = psPalette[i].b;
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green = psPalette[i].g/2;
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break;
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case TRANS_BRITE:
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if( ((UDWORD)psPalette[i].r) + 50 >255)
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{
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red = 255;
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}
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else
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{
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red = (psPalette[i].r+50);
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}
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if( ((UDWORD)psPalette[i].b) + 50 >255)
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{
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blue = 255;
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}
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else
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{
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blue = (psPalette[i].b+50);
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}
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if( ((UDWORD)psPalette[i].g)+50 >255)
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{
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green = 255;
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}
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else
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{
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green = (psPalette[i].g+50);
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}
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break;
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default:
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ASSERT( FALSE,"Invalid transparency filter selection" );
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break;
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}
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if(tableNo == 0)
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{
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aTransTable[i] = pal_GetNearestColour(red,green,blue);
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}
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else if(tableNo == 1)
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{
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aTransTable2[i] = pal_GetNearestColour(red,green,blue);
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}
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else if(tableNo == 2)
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{
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aTransTable3[i] = pal_GetNearestColour(red,green,blue);
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}
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else
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{
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aTransTable4[i] = pal_GetNearestColour(red,green,blue);
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}
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}
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}
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