170 lines
6.3 KiB
C++
170 lines
6.3 KiB
C++
/* _______ __ __ __ ______ __ __ _______ __ __
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* / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
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* / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
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* / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
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* / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
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* /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
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* \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
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*
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* Copyright (c) 2004, 2005, 2006, 2007 Olof Naessén and Per Larsson
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*
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* Js_./
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* Per Larsson a.k.a finalman _RqZ{a<^_aa
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* Olof Naessén a.k.a jansem/yakslem _asww7!uY`> )\a//
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* _Qhm`] _f "'c 1!5m
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* Visit: http://guichan.darkbits.org )Qk<P ` _: :+' .' "{[
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* .)j(] .d_/ '-( P . S
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* License: (BSD) <Td/Z <fP"5(\"??"\a. .L
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* Redistribution and use in source and _dV>ws?a-?' ._/L #'
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* binary forms, with or without )4d[#7r, . ' )d`)[
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* modification, are permitted provided _Q-5'5W..j/?' -?!\)cam'
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* that the following conditions are met: j<<WP+k/);. _W=j f
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* 1. Redistributions of source code must .$%w\/]Q . ."' . mj$
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* retain the above copyright notice, ]E.pYY(Q]>. a J@\
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* this list of conditions and the j(]1u<sE"L,. . ./^ ]{a
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* following disclaimer. 4'_uomm\. )L);-4 (3=
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* 2. Redistributions in binary form must )_]X{Z('a_"a7'<a"a, ]"[
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* reproduce the above copyright notice, #}<]m7`Za??4,P-"'7. ).m
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* this list of conditions and the ]d2e)Q(<Q( ?94 b- LQ/
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* following disclaimer in the <B!</]C)d_, '(<' .f. =C+m
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* documentation and/or other materials .Z!=J ]e []('-4f _ ) -.)m]'
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* provided with the distribution. .w[5]' _[ /.)_-"+? _/ <W"
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* 3. Neither the name of Guichan nor the :$we` _! + _/ . j?
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* names of its contributors may be used =3)= _f (_yQmWW$#( "
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* to endorse or promote products derived - W, sQQQQmZQ#Wwa]..
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* from this software without specific (js, \[QQW$QWW#?!V"".
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* prior written permission. ]y:.<\.. .
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* -]n w/ ' [.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT )/ )/ !
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* HOLDERS AND CONTRIBUTORS "AS IS" AND ANY < (; sac , '
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, ]^ .- %
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF c < r
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR aga< <La
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 5% )P'-3L
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR _bQf` y`..)a
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, ,J?4P'.P"_(\?d'.,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES _Pa,)!f/<[]/ ?"
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT _2-..:. .r+_,.. .
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ?a.<%"' " -'.a_ _,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ^
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef GCN_OPENGLIMAGE_HPP
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#define GCN_OPENGLIMAGE_HPP
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#if defined (_WIN32)
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#if defined (DELETE)
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#undef DELETE
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#endif
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#endif
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#if defined (__APPLE__)
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#include <OpenGL/gl.h>
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#else
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#include <SDL_opengl.h>
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#endif
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#include <string>
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#include "guisan/color.hpp"
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#include "guisan/platform.hpp"
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#include "guisan/image.hpp"
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namespace gcn
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{
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/**
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* OpenGL implementation of Image.
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*/
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class GCN_EXTENSION_DECLSPEC OpenGLImage : public Image
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{
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public:
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/**
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* Constructor. Loads an image from an array of pixels. The pixel array is
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* is copied in the constructor and should thus be freed after the constructor
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* has been called.
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*
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* NOTE: The functions getPixel and putPixel are only guaranteed to work
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* before an image has been converted to display format.
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*
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* @param pixels to load from.
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* @param width the width of the image.
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* @param height the height of the image.
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* @param convertToDisplayFormat true if the image should be converted
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* to display, false otherwise.
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*/
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OpenGLImage(unsigned int* pixels, int width, int height, bool convertToDisplayFormat = true);
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/**
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* Constructor. Load an image from an OpenGL texture handle. The width
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* and height specifies the size of the "interesting" part of the
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* texture, the real width and height of the texture are assumed to
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* be the closest higher power of two.
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*
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* @param textureHandle the texture handle from which to load.
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* @param width the width of the image.
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* @param height the height of the image.
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* @param autoFree true if the surface should automatically be deleted.
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*/
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OpenGLImage(GLuint textureHandle, int width, int height, bool autoFree);
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/**
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* Destructor.
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*/
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virtual ~OpenGLImage();
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/**
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* Gets the OpenGL texture handle for the image.
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*
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* @return the OpenGL texture handle for the image.
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*/
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[[nodiscard]] virtual GLuint getTextureHandle() const;
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/**
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* Gets the width of texture.
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*
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* @return the width of the texture.
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*/
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[[nodiscard]] virtual int getTextureWidth() const;
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/**
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* Gets the height of the texture.
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*
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* @return the height of the texture.
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*/
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[[nodiscard]] virtual int getTextureHeight() const;
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// Inherited from Image
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void free() override;
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[[nodiscard]] int getWidth() const override;
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[[nodiscard]] int getHeight() const override;
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Color getPixel(int x, int y) override;
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void putPixel(int x, int y, const Color& color) override;
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void convertToDisplayFormat() override;
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protected:
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GLuint mTextureHandle;
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unsigned int* mPixels;
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bool mAutoFree;
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int mWidth;
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int mHeight;
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int mTextureWidth;
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int mTextureHeight;
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};
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}
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#endif // end GCN_OPENGLIMAGE_HPP
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