GLImage.hh

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#ifndef GLTEXTURE_HH
#define GLTEXTURE_HH
 
#include "BaseImage.hh"
#include "GLUtil.hh"
#include <array>
#include <cstdint>
#include <span>
#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, uint32_t rgba);
        GLImage(OutputSurface& output, gl::ivec2 size, std::span<const uint32_t, 4> rgba,
                int borderSize, uint32_t 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:
        std::array<gl::BufferObject, 3> vbo;
        gl::BufferObject elementsBuffer;
        gl::Texture texture{gl::Null()}; // must come after size
        int borderSize{0};
        std::array<uint16_t, 4> bgA; // 0..256
        uint16_t borderA{0}; // 0..256
        std::array<uint8_t, 4> bgR, bgG, bgB;
        uint8_t borderR{0}, borderG{0}, borderB{0};
};
 
} // namespace openmsx
 
#endif