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https://github.com/libretro/scummvm.git
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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
129 lines
3.0 KiB
C++
129 lines
3.0 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_SURFACE_H
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#define TITANIC_DIRECT_DRAW_SURFACE_H
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#include "common/scummsys.h"
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#include "common/array.h"
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#include "graphics/managed_surface.h"
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#include "titanic/support/rect.h"
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namespace Titanic {
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class TitanicEngine;
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struct DDSurfaceDesc {
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int _w;
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int _h;
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int _bpp;
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int _flags;
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int _caps;
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DDSurfaceDesc(int w, int h, int bpp) : _w(w), _h(h), _bpp(bpp),
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_flags(0x1006), _caps(64) {}
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};
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class DirectDrawSurface {
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private:
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Graphics::ManagedSurface *_surface;
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DisposeAfterUse::Flag _disposeAfterUse;
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public:
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DirectDrawSurface();
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~DirectDrawSurface();
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/**
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* Create a surface
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*/
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void create(int w, int h, int bpp);
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/**
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* Create a surface based on a passed surface
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*/
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void create(Graphics::ManagedSurface *surface);
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/**
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* Frees the surface
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*/
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void free();
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/**
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* Return the size of the surface in ytes
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*/
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int getSize() const { return _surface->pitch * _surface->h; }
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/**
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* Return the surface width
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*/
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int getWidth() const { return _surface->w; }
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/**
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* Return the surface width
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*/
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int getHeight() const { return _surface->h; }
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/**
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* Return the surface pitch
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*/
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int getPitch() const { return _surface->pitch; }
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/**
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* Return the surface's format
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*/
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const Graphics::PixelFormat &getFormat() { return _surface->format; }
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/**
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* Lock the surface for access
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*/
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Graphics::ManagedSurface *lock(const Rect *bounds, int flags);
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/**
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* Unlocks the surface at the end of direct accesses
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*/
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void unlock();
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/**
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* Fills an area of the surfae with the specified color. If no bounds are passed,
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* then the entire surface is filled
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*/
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void fill(const Rect *bounds, uint32 color);
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/**
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* Fill an area with a specific color
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*/
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void fillRect(Rect *rect, byte r, byte g, byte b);
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/**
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* Copy data from a source surfcae into this one
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*/
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void blit(const Rect &destRect, DirectDrawSurface *srcSurface, Rect &srcRect);
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/**
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* Copy data from a source surfcae into this one
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*/
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void blit(const Point &destPos, DirectDrawSurface *srcSurface, Rect *bounds);
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};
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} // End of namespace Titanic
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#endif /* TITANIC_DIRECT_DRAW_SURFACE_H */
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