include/rive/factory.hpp

/*
 * Copyright 2022 Rive
 */

#ifndef _RIVE_FACTORY_HPP_
#define _RIVE_FACTORY_HPP_

#include "rive/renderer.hpp"
#include "rive/render_text.hpp"
#include "rive/refcnt.hpp"
#include "rive/span.hpp"
#include "rive/math/aabb.hpp"
#include "rive/math/mat2d.hpp"

#include <cmath>
#include <stdio.h>
#include <cstdint>

namespace rive {

class RawPath;

class Factory {
public:
    Factory() {}
    virtual ~Factory() {}

    virtual rcp<RenderBuffer> makeBufferU16(Span<const uint16_t>) = 0;
    virtual rcp<RenderBuffer> makeBufferU32(Span<const uint32_t>) = 0;
    virtual rcp<RenderBuffer> makeBufferF32(Span<const float>) = 0;

    virtual rcp<RenderShader> makeLinearGradient(float sx,
                                                 float sy,
                                                 float ex,
                                                 float ey,
                                                 const ColorInt colors[], // [count]
                                                 const float stops[],     // [count]
                                                 size_t count) = 0;

    virtual rcp<RenderShader> makeRadialGradient(float cx,
                                                 float cy,
                                                 float radius,
                                                 const ColorInt colors[], // [count]
                                                 const float stops[],     // [count]
                                                 size_t count) = 0;

    // Returns a full-formed RenderPath -- can be treated as immutable
    // This call might swap out the arrays backing the points and verbs in the given RawPath, so the
    // caller can expect it to be in an undefined state upon return.
    virtual std::unique_ptr<RenderPath> makeRenderPath(RawPath&, FillRule) = 0;

    // Deprecated -- working to make RenderPath's immutable
    virtual std::unique_ptr<RenderPath> makeEmptyRenderPath() = 0;

    virtual std::unique_ptr<RenderPaint> makeRenderPaint() = 0;

    virtual std::unique_ptr<RenderImage> decodeImage(Span<const uint8_t>) = 0;

    virtual rcp<RenderFont> decodeFont(Span<const uint8_t>) { return nullptr; }

    // Non-virtual helpers

    std::unique_ptr<RenderPath> makeRenderPath(const AABB&);
};

} // namespace rive
#endif