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