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CnC_Renegade/Code/wwlib/dib.cpp

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/*
** Command & Conquer Renegade(tm)
** Copyright 2025 Electronic Arts Inc.
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** 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, see <http://www.gnu.org/licenses/>.
*/
/***********************************************************************************************
*** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S ***
***********************************************************************************************
* *
* Project Name : Command & Conquer *
* *
* $Archive:: /G/wwlib/dib.cpp $*
* *
* $Author:: Eric_c $*
* *
* $Modtime:: 3/29/99 5:11p $*
* *
* $Revision:: 3 $*
* *
*---------------------------------------------------------------------------------------------*
* Functions: *
* DIB8C::DIB8Class -- constructor *
* DIB8C::~DIB8Class -- destructor *
* DIB8C::Clear -- clears the DIB *
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
#include "always.h"
#include "dib.h"
#include <math.h>
/***********************************************************************************************
* DIB8C::DIB8Class -- constructor *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 04/18/1997 GH : Created. *
*=============================================================================================*/
DIB8Class::DIB8Class(HWND hwnd,int width,int height,PaletteClass & pal):
IsZombie(false),
Info(NULL),
Handle(0),
Pixels(NULL),
Width(width),
Height(height),
PixelBase(NULL),
Pitch(NULL),
Surface(NULL)
{
// Allocate a BITMAPINFO structure
Info = (BITMAPINFO *) new char [sizeof(BITMAPINFO) + 256*sizeof(RGBQUAD)];
if (Info == NULL) {
IsZombie = true;
return;
}
// Describe the type of DIB we want.
Info->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
Info->bmiHeader.biWidth = width;
Info->bmiHeader.biHeight = -height; //ask for a top-down dib.
Info->bmiHeader.biPlanes = 1;
Info->bmiHeader.biBitCount = 8;
Info->bmiHeader.biCompression = BI_RGB;
Info->bmiHeader.biSizeImage = 0;
Info->bmiHeader.biXPelsPerMeter = 0;
Info->bmiHeader.biYPelsPerMeter = 0;
Info->bmiHeader.biClrUsed = 256;
Info->bmiHeader.biClrImportant = 256;
// Fill in the DIB's palette.
for (int i=0; i<256; i++) {
Info->bmiColors[i].rgbBlue = (unsigned char)pal[i].Get_Blue();
Info->bmiColors[i].rgbGreen = (unsigned char)pal[i].Get_Green();
Info->bmiColors[i].rgbRed = (unsigned char)pal[i].Get_Red();
Info->bmiColors[i].rgbReserved = 0;
}
// Create the DIB.
HDC hdc = GetDC(hwnd);
Handle = CreateDIBSection(hdc, Info, DIB_RGB_COLORS,(void**)&Pixels, NULL, 0);
ReleaseDC(hwnd, hdc);
if (!Handle) {
IsZombie = true;
return;
}
Width = Info->bmiHeader.biWidth;
Height = abs(Info->bmiHeader.biHeight);
Pitch = (Width + 3) & 0xfffffffC;
// Check if the DIB is bottom-up or top-down.
// (it better be top-down, thats what I'm asking for!!!)
if (Info->bmiHeader.biHeight > 0) {
// bottom-up DIB
PixelBase = (Pixels + (Height - 1) * Width);
Pitch = -Pitch;
} else {
// top-down DIB
PixelBase = Pixels;
Pitch = Pitch;
}
// Now, wrap a BSurface around the DIB.
int surfwid = abs(Pitch);
Surface = new BSurface(surfwid,Height,1,Pixels);
if (Surface == NULL) {
IsZombie = true;
return;
}
}
/***********************************************************************************************
* DIB8C::~DIB8Class -- destructor *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 04/18/1997 GH : Created. *
*=============================================================================================*/
DIB8Class::~DIB8Class(void)
{
if (Info) delete [] Info;
if (Handle) DeleteObject(Handle);
if (Surface) delete Surface;
}
/***********************************************************************************************
* DIB8C::Clear -- clears the DIB *
* *
* INPUT: *
* *
* OUTPUT: *
* *
* WARNINGS: *
* *
* HISTORY: *
* 04/18/1997 GH : Created. *
*=============================================================================================*/
void DIB8Class::Clear(unsigned char color)
{
if (Pixels) {
memset(Pixels, color, Width*Height);
}
}