GLImage.hh

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#ifndef GLTEXTURE_HH
#define GLTEXTURE_HH
 
#include "BaseImage.hh"
#include "GLUtil.hh"
#include "span.hh"
#include <cstdint>
#include <string>
 
class SDLSurfacePtr;
 
namespace openmsx {
 
class GLImage final : public BaseImage
{
public:
        GLImage(OutputSurface& output, const std::string& filename);
        GLImage(OutputSurface& output, SDLSurfacePtr image);
        GLImage(OutputSurface& output, const std::string& filename, float scaleFactor);
        GLImage(OutputSurface& output, const std::string& filename, gl::ivec2 size);
        GLImage(OutputSurface& output, gl::ivec2 size, unsigned rgba);
        GLImage(OutputSurface& output, gl::ivec2 size, span<const unsigned, 4> rgba,
                int borderSize, unsigned borderRGBA);
 
        void draw(OutputSurface& output, gl::ivec2 pos,
                  uint8_t r, uint8_t g, uint8_t b, uint8_t alpha) override;
 
private:
        void initBuffers();
 
private:
        gl::BufferObject vbo[3];
        gl::BufferObject elementsBuffer;
        gl::Texture texture; // must come after size
        int borderSize;
        int bgA[4], borderA;
        uint8_t bgR[4], bgG[4], bgB[4];
        uint8_t borderR, borderG, borderB;
};
 
} // namespace openmsx
 
#endif