backends/opengl/image.hpp

// SPDX-License-Identifier: LGPL-2.1-or-later OR BSD-3-Clause
// SPDX-FileCopyrightText: 2004 - 2008 Olof Naessén and Per Larsson
// SPDX-FileCopyrightText: 2013 - 2026 Fifengine contributors
 
#ifndef INCLUDE_FIFECHAN_BACKENDS_OPENGL_IMAGE_HPP_
#define INCLUDE_FIFECHAN_BACKENDS_OPENGL_IMAGE_HPP_
 
// Standard library includes
#include <span>
#include <string>
#include <vector>
 
// Platform config include
#include "fifechan/platform.hpp"
 
#ifdef _WIN32
    #include <windows.h>
#endif // _WIN32
 
#ifdef __APPLE__
    #include <OpenGL/gl.h>
#else
    #include <GL/gl.h>
#endif // __APPLE__
 
// Project headers (subdirs before local)
#include "fifechan/color.hpp"
#include "fifechan/image.hpp"
 
namespace fcn::opengl
{
    class FIFEGUI_EXT_API Image : public fcn::Image
    {
        public:
            Image(std::span<unsigned int const> pixels, int width, int height, bool convertToDisplayFormat = true);

            Image(GLuint textureHandle, int width, int height, bool autoFree);
 
            ~Image() override;

 
            virtual GLuint getTextureHandle() const;

            virtual int getTextureWidth() const;

            virtual int getTextureHeight() const;
 
            // Inherited from Image
 
            void free() override;
 
            int getWidth() const override;
 
            int getHeight() const override;
 
            Color getPixel(int x, int y) override;
 
            void putPixel(int x, int y, Color const & color) override;
 
            void convertToDisplayFormat() override;
 
        protected:
            GLuint mTextureHandle;

            std::vector<unsigned int> mPixels;

            bool mAutoFree;

            int mWidth;

            int mHeight;

            int mTextureWidth;

            int mTextureHeight;
    };
} // namespace fcn::opengl
 
namespace fcn
{
    using OpenGLImage = fcn::opengl::Image;
} // namespace fcn
 
#endif // INCLUDE_FIFECHAN_BACKENDS_OPENGL_IMAGE_HPP_