Texture.h

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#pragma once
#include "common/Export.h"
 
 
#include <cstdint>
#include <string>
#include "graphics/Drawable.h"
#include "graphics/TextureSampler.h"
 
namespace eve::graphics {
 
class Graphics;
 
class EVENGINE_API_BACKENDS Texture : public Drawable {
public:
    Texture();
    ~Texture() override;
 
    void draw(Graphics *gfx, const glm::mat4 &matrix) const override;
    void drawOcclusion(Graphics *gfx, const glm::mat4 &matrix) const override;
 
    int getWidth() const;
    int getHeight() const;
    int getPixelWidth() const;
    int getPixelHeight() const;
    int getMipmapCount() const;
    const TextureSampler &getSampler() const { return sampler; }
    void setAlphaConvention(const std::string &value) {
        premultipliedAlpha_ = value == "premultiplied";
    }
    std::string getAlphaConvention() const {
        return premultipliedAlpha_ ? "premultiplied" : "straight";
    }
    bool hasPremultipliedAlpha() const { return premultipliedAlpha_; }
 
    void *gpuHandle = nullptr;
 
    int width = 0;
    int height = 0;
    int depth = 1;
    int layers = 1;
    int mipmapCount = 1;
    int pixelWidth = 0;
    int pixelHeight = 0;
    TextureSampler sampler{};
 
    void markDeferredFilePixels(Graphics *graphics);
    void clearDeferredFilePixels();
    bool hasDeferredFilePixels() const { return filePixelsPending_; }
 
private:
    void realizeFilePixelsIfNeeded() const;
    Graphics *graphics_ = nullptr;
    bool filePixelsPending_ = false;
    bool premultipliedAlpha_ = false;
};
 
}  // namespace eve::graphics