skia/renderer/include/mac_utils.hpp

#ifndef _RIVE_MAC_UTILS_HPP_
#define _RIVE_MAC_UTILS_HPP_

#include "rive/rive_types.hpp"
#include <string>

#if defined(RIVE_BUILD_FOR_OSX)
    #include <ApplicationServices/ApplicationServices.h>
#elif defined(SK_BUILD_FOR_IOS)
    #include <CoreFoundation/CoreFoundation.h>
#endif

template <size_t N, typename T> class AutoSTArray {
    T m_storage[N];
    T* m_ptr;
    const size_t m_count;

public:
    AutoSTArray(size_t n) : m_count(n) {
        m_ptr = m_storage;
        if (n > N) {
            m_ptr = new T[n];
        }
    }
    ~AutoSTArray() {
        if (m_ptr != m_storage) {
            delete[] m_ptr;
        }
    }

    T* data() const { return m_ptr; }

    T& operator[](size_t index) {
        assert(index < m_count);
        return m_ptr[index];
    }
};

constexpr inline uint32_t make_tag(uint8_t a, uint8_t b, uint8_t c, uint8_t d) {
    return (a << 24) | (b << 16) | (c << 8) | d;
}

static inline std::string tag2str(uint32_t tag) {
    std::string str = "abcd";
    str[0] = (tag >> 24) & 0xFF;
    str[1] = (tag >> 16) & 0xFF;
    str[2] = (tag >>  8) & 0xFF;
    str[3] = (tag >>  0) & 0xFF;
    return str;
}

template <typename T> class AutoCF {
    T m_Obj;
public:
    AutoCF(T obj) : m_Obj(obj) {}
    ~AutoCF() { if (m_Obj) CFRelease(m_Obj); }

    operator T() const { return m_Obj; }
    operator bool() const { return m_Obj != nullptr; }
    T get() const { return m_Obj; }
};

static inline float find_float(CFDictionaryRef dict, const void* key) {
    auto num = (CFNumberRef)CFDictionaryGetValue(dict, key);
    assert(num);
    assert(CFNumberIsFloatType(num));
    float value = 0;
    CFNumberGetValue(num, kCFNumberFloat32Type, &value);
    return value;
}

static inline uint32_t find_u32(CFDictionaryRef dict, const void* key) {
    auto num = (CFNumberRef)CFDictionaryGetValue(dict, key);
    assert(num);
    assert(!CFNumberIsFloatType(num));
    uint32_t value = 0;
    CFNumberGetValue(num, kCFNumberSInt32Type, &value);
    return value;
}

static inline uint32_t number_as_u32(CFNumberRef num) {
    uint32_t value;
    CFNumberGetValue(num, kCFNumberSInt32Type, &value);
    return value;
}

static inline float number_as_float(CFNumberRef num) {
    float value;
    CFNumberGetValue(num, kCFNumberFloat32Type, &value);
    return value;
}

#endif