mirror of
https://github.com/scummvm/scummvm.git
synced 2026-06-20 05:45:29 +00:00
Paul Gilbert
63ec47e62f
Some of the game videos have alpha levels, which are lost if the surfaces are converted to 16-bit. This adds better support for creating 32-bit video surfaces, so the information won't be lost
96 lines
2.4 KiB
C++
96 lines
2.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef TITANIC_DIRECT_DRAW_H
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#define TITANIC_DIRECT_DRAW_H
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#include "common/scummsys.h"
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#include "common/array.h"
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#include "titanic/support/direct_draw_surface.h"
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namespace Titanic {
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class TitanicEngine;
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class DirectDraw {
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public:
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bool _windowed;
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int _width;
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int _height;
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int _bpp;
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int _numBackSurfaces;
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public:
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DirectDraw();
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/**
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* Sets a new display mode
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*/
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void setDisplayMode(int width, int height, int bpp, int refreshRate);
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/**
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* Logs diagnostic information
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*/
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void diagnostics();
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/**
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* Create a surface from a passed description record
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*/
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DirectDrawSurface *createSurfaceFromDesc(const DDSurfaceDesc &desc);
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};
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class DirectDrawManager {
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public:
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DirectDraw _directDraw;
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DirectDrawSurface *_mainSurface;
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DirectDrawSurface *_backSurfaces[2];
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public:
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DirectDrawManager(TitanicEngine *vm, bool windowed);
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/**
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* Initializes video surfaces
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* @param width Screen width
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* @param height Screen height
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* @param bpp Bits per pixel
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* @param numBackSurfaces Number of back surfaces
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*/
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void initVideo(int width, int height, int bpp, int numBackSurfaces);
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/**
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* Initializes the surfaces in windowed mode
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*/
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void initWindowed() { initFullScreen(); }
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/**
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* Initializes the surfaces for the screen
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*/
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void initFullScreen();
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/**
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* Create a surface
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*/
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DirectDrawSurface *createSurface(int w, int h, int bpp, int surfaceNum);
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};
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} // End of namespace Titanic
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#endif /* TITANIC_DIRECT_DRAW_H */
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