173 lines
6.3 KiB
C++
173 lines
6.3 KiB
C++
/*
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** Command & Conquer Generals(tm)
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** Copyright 2025 Electronic Arts Inc.
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**
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** This program 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 3 of the License, or
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** (at your option) any later version.
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**
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** This program 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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**
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** You should have received a copy of the GNU General Public License
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** along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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// FILE: TexturePage.h ////////////////////////////////////////////////////////
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//-----------------------------------------------------------------------------
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//
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// Westwood Studios Pacific.
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//
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// Confidential Information
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// Copyright (C) 2001 - All Rights Reserved
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//
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//-----------------------------------------------------------------------------
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//
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// Project: ImagePacker
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//
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// File name: TexturePage.h
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//
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// Created: Colin Day, August 2001
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//
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// Desc: This class represents a texture that contains packed
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// images.
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//
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//-----------------------------------------------------------------------------
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///////////////////////////////////////////////////////////////////////////////
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#pragma once
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#ifndef __TEXTUREPAGE_H_
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#define __TEXTUREPAGE_H_
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// SYSTEM INCLUDES ////////////////////////////////////////////////////////////
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#include <stdlib.h>
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///////////////////////////////////////////////////////////////////////////////
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// USER INCLUDES //////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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#include "WWLib/Targa.h"
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#include "Lib/BaseType.h"
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#include "ImageInfo.h"
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// FORWARD REFERENCES /////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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// TYPE DEFINES ///////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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// TexturePage ----------------------------------------------------------------
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/** A texture page continaing multiple source images */
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//-----------------------------------------------------------------------------
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class TexturePage
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{
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public:
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enum
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{
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FREE = 0, ///< open pixel in the cavas
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USED = 1, ///< used pixel in the canvas
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};
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enum
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{
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READY = 0x00000001, ///< texture page here and OK
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PAGE_ERROR = 0x00000002, ///< error on page somewhere
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CANT_ALLOCATE_PACKED_IMAGE = 0x00000004, ///< couldn't generate final image
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CANT_ADD_IMAGE_DATA = 0x00000008, ///< couldn't add image data to page
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NO_TEXTURE_DATA = 0x00000010, ///< there was no image data to write
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ERROR_DURING_SAVE = 0x00000020, ///< couldn't save final file
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};
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TexturePage( Int width, Int height );
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~TexturePage( void );
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Bool addImage( ImageInfo *image ); ///< try to add image to this page
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void setID( Int id ); ///< set page id
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Int getID( void ); ///< get page id
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Bool generateTexture( void ); ///< generate the final packed texture
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Bool writeFile( char *baseFilename ); ///< write generated texture to file
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ImageInfo *getFirstImage( void ); ///< get the first image in the list
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Int getWidth( void ); ///< get width of texture page
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Int getHeight( void ); ///< get height of texture page
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// get rgb from final generated texture (putting this in for quick preview)
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void getPixel( Int x, Int y, Byte *r, Byte *g, Byte *b, Byte *a = NULL );
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TexturePage *m_next;
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TexturePage *m_prev;
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UnsignedInt m_status; ///< status bits
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protected:
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Bool spotUsed( Int x, Int y ); ///< is this spot used
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Bool lineUsed( Int sx, Int sy, Int ex, Int ey ); ///< is any spot on the line used
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/// build a region to try to fit given the position, size, and border options
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UnsignedInt buildFitRegion( IRegion2D *region,
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Int startX, Int startY,
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Int imageWidth, Int imageHeight,
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Int *xGutter, Int *yGutter,
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Bool allSidesBorder );
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void markRegionUsed( IRegion2D *region ); ///< mark this region as used
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/// add the actual image data of 'image' to the destination buffer
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Bool addImageData( Byte *destBuffer,
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Int destWidth,
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Int destHeight,
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Int destBPP,
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ImageInfo *image );
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/// extend edges of image outward into border if present
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void extendImageEdges( Byte *destBuffer,
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Int destWidth,
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Int destHeight,
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Int destBPP,
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ImageInfo *image,
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Bool extendAlpha );
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/// if the pixel at abolve/below row is open, extend pixel at src to its location
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void extendToRowIfOpen( char *src,
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Int buffWidth,
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Int buffBPP,
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Bool extendAlpha,
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Int imageHeight,
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UnsignedInt fitBits,
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Int srcX, Int srcY );
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Int m_id; ///< texture page ID
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ICoord2D m_size; ///< dimensions of texture page
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UnsignedByte *m_canvas; ///< as big as the texture page, a used spot is non zero
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ImageInfo *m_imageList; ///< list of images packed on this page
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Byte *m_packedImage; ///< final generated image data
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Targa *m_targa; ///< final packed image all in a nice little targa file
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};
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///////////////////////////////////////////////////////////////////////////////
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// INLINING ///////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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inline void TexturePage::setID( Int id ) { m_id = id; }
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inline Int TexturePage::getID( void ) { return m_id; }
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inline ImageInfo *TexturePage::getFirstImage( void ) { return m_imageList; }
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inline Int TexturePage::getWidth( void ) { return m_size.x; }
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inline Int TexturePage::getHeight( void ) { return m_size.y; }
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// EXTERNALS //////////////////////////////////////////////////////////////////
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#endif // __TEXTUREPAGE_H_
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