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#ifndef EAX_EAX_CALL_INCLUDED
#define EAX_EAX_CALL_INCLUDED
#include "AL/al.h"
#include "alnumeric.h"
#include "alspan.h"
#include "api.h"
#include "fx_slot_index.h"
enum class EaxCallType {
none,
get,
set,
}; // EaxCallType
enum class EaxCallPropertySetId {
none,
context,
fx_slot,
source,
fx_slot_effect,
}; // EaxCallPropertySetId
class EaxCall {
public:
EaxCall(
EaxCallType type,
const GUID& property_set_guid,
ALuint property_id,
ALuint property_source_id,
ALvoid* property_buffer,
ALuint property_size);
bool is_get() const noexcept { return mCallType == EaxCallType::get; }
bool is_deferred() const noexcept { return mIsDeferred; }
int get_version() const noexcept { return mVersion; }
EaxCallPropertySetId get_property_set_id() const noexcept { return mPropertySetId; }
ALuint get_property_id() const noexcept { return mPropertyId; }
ALuint get_property_al_name() const noexcept { return mPropertySourceId; }
EaxFxSlotIndex get_fx_slot_index() const noexcept { return mFxSlotIndex; }
template<typename TException, typename TValue>
TValue& get_value() const
{
if(mPropertyBufferSize < sizeof(TValue))
fail_too_small();
return *static_cast<TValue*>(mPropertyBuffer);
}
template<typename TValue>
al::span<TValue> get_values(size_t max_count) const
{
if(max_count == 0 || mPropertyBufferSize < sizeof(TValue))
fail_too_small();
const auto count = minz(mPropertyBufferSize / sizeof(TValue), max_count);
return {static_cast<TValue*>(mPropertyBuffer), count};
}
template<typename TValue>
al::span<TValue> get_values() const
{
return get_values<TValue>(~0_uz);
}
template<typename TException, typename TValue>
void set_value(const TValue& value) const
{
get_value<TException, TValue>() = value;
}
private:
const EaxCallType mCallType;
int mVersion;
EaxFxSlotIndex mFxSlotIndex;
EaxCallPropertySetId mPropertySetId;
bool mIsDeferred;
const ALuint mPropertyId;
const ALuint mPropertySourceId;
ALvoid*const mPropertyBuffer;
const ALuint mPropertyBufferSize;
[[noreturn]] static void fail(const char* message);
[[noreturn]] static void fail_too_small();
}; // EaxCall
EaxCall create_eax_call(
EaxCallType type,
const GUID* property_set_id,
ALuint property_id,
ALuint property_source_id,
ALvoid* property_buffer,
ALuint property_size);
#endif // !EAX_EAX_CALL_INCLUDED
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