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108 lines
2.7 KiB
C++
108 lines
2.7 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 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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*/
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#ifndef STARK_VISUAL_IMAGE_H
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#define STARK_VISUAL_IMAGE_H
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#include "engines/stark/visual/visual.h"
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#include "common/rect.h"
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#include "common/stream.h"
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namespace Graphics {
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struct Surface;
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}
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namespace Stark {
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namespace Gfx {
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class Driver;
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class SurfaceRenderer;
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class Bitmap;
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}
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/**
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* XMG (still image) renderer
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*/
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class VisualImageXMG : public Visual {
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public:
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static const VisualType TYPE = Visual::kImageXMG;
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explicit VisualImageXMG(Gfx::Driver *gfx);
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~VisualImageXMG() override;
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/**
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* Load the pixel data from a XMG image
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*/
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void load(Common::ReadStream *stream);
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/**
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* Load the size from an XMG image
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*/
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void readOriginalSize(Common::ReadStream *stream);
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/**
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* Load the pixel data from a PNG image
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*/
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bool loadPNG(Common::SeekableReadStream *stream);
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void render(const Common::Point &position, bool useOffset);
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void render(const Common::Point &position, bool useOffset, bool unscaled);
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/** Set an offset used when rendering */
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void setHotSpot(const Common::Point &hotspot);
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Common::Point getHotspot() const { return _hotspot; }
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/**
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* The fade level is added to the color value of each pixel
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*
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* It is a value between -1 and 1
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*/
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void setFadeLevel(float fadeLevel);
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/** Perform a transparency hit test on an image point */
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bool isPointSolid(const Common::Point &point) const;
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/** Get the width in pixels */
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int getWidth() const;
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/** Get the height in pixels */
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int getHeight() const;
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/** Get a read only pointer to the surface backing the image */
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const Graphics::Surface *getSurface() const;
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private:
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Graphics::Surface *multiplyColorWithAlpha(const Graphics::Surface *source);
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Gfx::Driver *_gfx;
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Gfx::SurfaceRenderer *_surfaceRenderer;
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Gfx::Bitmap *_bitmap;
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Graphics::Surface *_surface;
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Common::Point _hotspot;
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uint _originalWidth;
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uint _originalHeight;
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};
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} // End of namespace Stark
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#endif // STARK_VISUAL_IMAGE_H
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