First Commit

externals/openal-soft/al/eax/call.cpp

@@ -0,0 +1,219 @@
+#include "config.h"
+#include "call.h"
+#include "exception.h"
+
+namespace {
+
+constexpr auto deferred_flag = 0x80000000U;
+
+class EaxCallException : public EaxException {
+public:
+    explicit EaxCallException(const char* message)
+        : EaxException{"EAX_CALL", message}
+    {}
+}; // EaxCallException
+
+} // namespace
+
+EaxCall::EaxCall(
+    EaxCallType type,
+    const GUID& property_set_guid,
+    ALuint property_id,
+    ALuint property_source_id,
+    ALvoid* property_buffer,
+    ALuint property_size)
+    : mCallType{type}, mVersion{0}, mPropertySetId{EaxCallPropertySetId::none}
+    , mIsDeferred{(property_id & deferred_flag) != 0}
+    , mPropertyId{property_id & ~deferred_flag}, mPropertySourceId{property_source_id}
+    , mPropertyBuffer{property_buffer}, mPropertyBufferSize{property_size}
+{
+    switch(mCallType)
+    {
+        case EaxCallType::get:
+        case EaxCallType::set:
+            break;
+
+        default:
+            fail("Invalid type.");
+    }
+
+    if (false)
+    {
+    }
+    else if (property_set_guid == EAXPROPERTYID_EAX40_Context)
+    {
+        mVersion = 4;
+        mPropertySetId = EaxCallPropertySetId::context;
+    }
+    else if (property_set_guid == EAXPROPERTYID_EAX50_Context)
+    {
+        mVersion = 5;
+        mPropertySetId = EaxCallPropertySetId::context;
+    }
+    else if (property_set_guid == DSPROPSETID_EAX20_ListenerProperties)
+    {
+        mVersion = 2;
+        mFxSlotIndex = 0u;
+        mPropertySetId = EaxCallPropertySetId::fx_slot_effect;
+    }
+    else if (property_set_guid == DSPROPSETID_EAX30_ListenerProperties)
+    {
+        mVersion = 3;
+        mFxSlotIndex = 0u;
+        mPropertySetId = EaxCallPropertySetId::fx_slot_effect;
+    }
+    else if (property_set_guid == EAXPROPERTYID_EAX40_FXSlot0)
+    {
+        mVersion = 4;
+        mFxSlotIndex = 0u;
+        mPropertySetId = EaxCallPropertySetId::fx_slot;
+    }
+    else if (property_set_guid == EAXPROPERTYID_EAX50_FXSlot0)
+    {
+        mVersion = 5;
+        mFxSlotIndex = 0u;
+        mPropertySetId = EaxCallPropertySetId::fx_slot;
+    }
+    else if (property_set_guid == EAXPROPERTYID_EAX40_FXSlot1)
+    {
+        mVersion = 4;
+        mFxSlotIndex = 1u;
+        mPropertySetId = EaxCallPropertySetId::fx_slot;
+    }
+    else if (property_set_guid == EAXPROPERTYID_EAX50_FXSlot1)
+    {
+        mVersion = 5;
+        mFxSlotIndex = 1u;
+        mPropertySetId = EaxCallPropertySetId::fx_slot;
+    }
+    else if (property_set_guid == EAXPROPERTYID_EAX40_FXSlot2)
+    {
+        mVersion = 4;
+        mFxSlotIndex = 2u;
+        mPropertySetId = EaxCallPropertySetId::fx_slot;
+    }
+    else if (property_set_guid == EAXPROPERTYID_EAX50_FXSlot2)
+    {
+        mVersion = 5;
+        mFxSlotIndex = 2u;
+        mPropertySetId = EaxCallPropertySetId::fx_slot;
+    }
+    else if (property_set_guid == EAXPROPERTYID_EAX40_FXSlot3)
+    {
+        mVersion = 4;
+        mFxSlotIndex = 3u;
+        mPropertySetId = EaxCallPropertySetId::fx_slot;
+    }
+    else if (property_set_guid == EAXPROPERTYID_EAX50_FXSlot3)
+    {
+        mVersion = 5;
+        mFxSlotIndex = 3u;
+        mPropertySetId = EaxCallPropertySetId::fx_slot;
+    }
+    else if (property_set_guid == DSPROPSETID_EAX20_BufferProperties)
+    {
+        mVersion = 2;
+        mPropertySetId = EaxCallPropertySetId::source;
+    }
+    else if (property_set_guid == DSPROPSETID_EAX30_BufferProperties)
+    {
+        mVersion = 3;
+        mPropertySetId = EaxCallPropertySetId::source;
+    }
+    else if (property_set_guid == EAXPROPERTYID_EAX40_Source)
+    {
+        mVersion = 4;
+        mPropertySetId = EaxCallPropertySetId::source;
+    }
+    else if (property_set_guid == EAXPROPERTYID_EAX50_Source)
+    {
+        mVersion = 5;
+        mPropertySetId = EaxCallPropertySetId::source;
+    }
+    else if (property_set_guid == DSPROPSETID_EAX_ReverbProperties)
+    {
+        mVersion = 1;
+        mFxSlotIndex = 0u;
+        mPropertySetId = EaxCallPropertySetId::fx_slot_effect;
+    }
+    else if (property_set_guid == DSPROPSETID_EAXBUFFER_ReverbProperties)
+    {
+        mVersion = 1;
+        mPropertySetId = EaxCallPropertySetId::source;
+    }
+    else
+    {
+        fail("Unsupported property set id.");
+    }
+
+    switch(mPropertyId)
+    {
+    case EAXCONTEXT_LASTERROR:
+    case EAXCONTEXT_SPEAKERCONFIG:
+    case EAXCONTEXT_EAXSESSION:
+    case EAXFXSLOT_NONE:
+    case EAXFXSLOT_ALLPARAMETERS:
+    case EAXFXSLOT_LOADEFFECT:
+    case EAXFXSLOT_VOLUME:
+    case EAXFXSLOT_LOCK:
+    case EAXFXSLOT_FLAGS:
+    case EAXFXSLOT_OCCLUSION:
+    case EAXFXSLOT_OCCLUSIONLFRATIO:
+        // EAX allow to set "defer" flag on immediate-only properties.
+        // If we don't clear our flag then "applyAllUpdates" in EAX context won't be called.
+        mIsDeferred = false;
+        break;
+    }
+
+    if(!mIsDeferred)
+    {
+        if(mPropertySetId != EaxCallPropertySetId::fx_slot && mPropertyId != 0)
+        {
+            if(mPropertyBuffer == nullptr)
+                fail("Null property buffer.");
+
+            if(mPropertyBufferSize == 0)
+                fail("Empty property.");
+        }
+    }
+
+    if(mPropertySetId == EaxCallPropertySetId::source && mPropertySourceId == 0)
+        fail("Null AL source id.");
+
+    if(mPropertySetId == EaxCallPropertySetId::fx_slot)
+    {
+        if(mPropertyId < EAXFXSLOT_NONE)
+            mPropertySetId = EaxCallPropertySetId::fx_slot_effect;
+    }
+}
+
+[[noreturn]] void EaxCall::fail(const char* message)
+{
+    throw EaxCallException{message};
+}
+
+[[noreturn]] void EaxCall::fail_too_small()
+{
+    fail("Property buffer too small.");
+}
+
+EaxCall create_eax_call(
+    EaxCallType type,
+    const GUID* property_set_id,
+    ALuint property_id,
+    ALuint property_source_id,
+    ALvoid* property_buffer,
+    ALuint property_size)
+{
+    if(!property_set_id)
+        throw EaxCallException{"Null property set ID."};
+
+    return EaxCall{
+        type,
+        *property_set_id,
+        property_id,
+        property_source_id,
+        property_buffer,
+        property_size
+    };
+}