151 lines
4.3 KiB
C++
151 lines
4.3 KiB
C++
// Copyright (C) 2002-2009 Nikolaus Gebhardt
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#ifndef __C_IMAGE_H_INCLUDED__
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#define __C_IMAGE_H_INCLUDED__
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#include "IImage.h"
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#include "rect.h"
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namespace irr
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{
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namespace video
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{
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//! IImage implementation with a lot of special image operations for
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//! 16 bit A1R5G5B5/32 Bit A8R8G8B8 images, which are used by the SoftwareDevice.
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class CImage : public IImage
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{
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public:
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//! constructor from another image with format change
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CImage(ECOLOR_FORMAT format, IImage* imageToCopy);
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//! constructor from raw image data
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//! \param useForeignMemory: If true, the image will use the data pointer
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//! directly and own it from now on, which means it will also try to delete [] the
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//! data when the image will be destructed. If false, the memory will by copied.
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CImage(ECOLOR_FORMAT format, const core::dimension2d<u32>& size,
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void* data, bool ownForeignMemory=true, bool deleteMemory = true);
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//! constructor for empty image
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CImage(ECOLOR_FORMAT format, const core::dimension2d<u32>& size);
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//! constructor using a part from another image
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CImage(IImage* imageToCopy,
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const core::position2d<s32>& pos, const core::dimension2d<u32>& size);
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//! destructor
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virtual ~CImage();
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//! Lock function.
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virtual void* lock()
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{
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return Data;
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}
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//! Unlock function.
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virtual void unlock() {}
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//! Returns width and height of image data.
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virtual const core::dimension2d<u32>& getDimension() const;
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//! Returns bits per pixel.
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virtual u32 getBitsPerPixel() const;
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//! Returns bytes per pixel
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virtual u32 getBytesPerPixel() const;
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//! Returns image data size in bytes
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virtual u32 getImageDataSizeInBytes() const;
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//! Returns image data size in pixels
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virtual u32 getImageDataSizeInPixels() const;
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//! returns mask for red value of a pixel
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virtual u32 getRedMask() const;
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//! returns mask for green value of a pixel
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virtual u32 getGreenMask() const;
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//! returns mask for blue value of a pixel
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virtual u32 getBlueMask() const;
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//! returns mask for alpha value of a pixel
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virtual u32 getAlphaMask() const;
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//! returns a pixel
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virtual SColor getPixel(u32 x, u32 y) const;
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//! sets a pixel
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virtual void setPixel(u32 x, u32 y, const SColor &color );
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//! returns the color format
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virtual ECOLOR_FORMAT getColorFormat() const;
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//! returns pitch of image
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virtual u32 getPitch() const { return Pitch; }
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//! copies this surface into another, scaling it to fit.
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virtual void copyToScaling(void* target, u32 width, u32 height, ECOLOR_FORMAT format, u32 pitch=0);
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//! copies this surface into another, scaling it to fit.
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virtual void copyToScaling(IImage* target);
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//! copies this surface into another
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virtual void copyTo(IImage* target, const core::position2d<s32>& pos=core::position2d<s32>(0,0));
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//! copies this surface into another
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virtual void copyTo(IImage* target, const core::position2d<s32>& pos, const core::rect<s32>& sourceRect, const core::rect<s32>* clipRect=0);
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//! copies this surface into another, using the alpha mask, an cliprect and a color to add with
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virtual void copyToWithAlpha(IImage* target, const core::position2d<s32>& pos,
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const core::rect<s32>& sourceRect, const SColor &color,
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const core::rect<s32>* clipRect = 0);
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//! copies this surface into another, scaling it to fit, appyling a box filter
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virtual void copyToScalingBoxFilter(IImage* target, s32 bias = 0);
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//! fills the surface with black or white
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virtual void fill(const SColor &color);
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//! draws a rectangle
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void drawRectangle(const core::rect<s32>& rect, const SColor &color);
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//! draws a line from to
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void drawLine(const core::position2d<s32>& from, const core::position2d<s32>& to, const SColor &color);
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static u32 getBitsPerPixelFromFormat(ECOLOR_FORMAT format);
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private:
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//! assumes format and size has been set and creates the rest
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void initData();
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void setBitMasks();
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inline SColor getPixelBox ( s32 x, s32 y, s32 fx, s32 fy, s32 bias ) const;
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void* Data;
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core::dimension2d<u32> Size;
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u32 BitsPerPixel;
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u32 BytesPerPixel;
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u32 Pitch;
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ECOLOR_FORMAT Format;
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bool DeleteMemory;
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u32 RedMask;
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u32 GreenMask;
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u32 BlueMask;
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u32 AlphaMask;
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};
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} // end namespace video
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} // end namespace irr
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#endif
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