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fix vst3 factoryCreateInstance

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This commit is contained in:
Stefano D'Angelo 2025-05-28 12:01:34 +02:00
parent b8469d8b86
commit 41c0b3e704
1 changed files with 6 additions and 21 deletions
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27
templates/vst3/src/vst3.c
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@ -265,7 +265,7 @@ static int stateRead(struct Steinberg_IBStream * state, char ** data, Steinberg_
}
typedef struct pluginInstance {
Steinberg_Vst_IComponentVtbl * vtblIComponent;
Steinberg_Vst_IComponentVtbl * vtblIComponent; // must stay first
Steinberg_Vst_IAudioProcessorVtbl * vtblIAudioProcessor;
Steinberg_Vst_IProcessContextRequirementsVtbl * vtblIProcessContextRequirements;
Steinberg_uint32 refs;
@ -1149,7 +1149,7 @@ static Steinberg_Vst_IProcessContextRequirementsVtbl pluginVtblIProcessContextRe
typedef struct plugView plugView;
typedef struct controller {
Steinberg_Vst_IEditControllerVtbl * vtblIEditController;
Steinberg_Vst_IEditControllerVtbl * vtblIEditController; // must stay first
Steinberg_Vst_IMidiMappingVtbl * vtblIMidiMapping;
#ifdef DATA_UI
//Steinberg_Vst_IConnectionPointVtbl * vtblIConnectionPoint;
@ -2419,25 +2419,10 @@ static Steinberg_tresult factoryCreateInstance(void *thisInterface, Steinberg_FI
TRACE("createInstance\n");
if (memcmp(cid, dataPluginCID, sizeof(Steinberg_TUID)) == 0) {
TRACE(" plugin\n");
size_t offset; // does it actually work like this? or is offset always 0? this seems to be correct and works...
if ((memcmp(iid, Steinberg_FUnknown_iid, sizeof(Steinberg_TUID)) == 0)
|| (memcmp(iid, Steinberg_IPluginBase_iid, sizeof(Steinberg_TUID)) != 0)
|| (memcmp(iid, Steinberg_Vst_IComponent_iid, sizeof(Steinberg_TUID)) != 0)) {
TRACE(" IComponent\n");
offset = offsetof(pluginInstance, vtblIComponent);
} else if (memcmp(iid, Steinberg_Vst_IAudioProcessor_iid, sizeof(Steinberg_TUID)) != 0) {
TRACE(" IAudioProcessor\n");
offset = offsetof(pluginInstance, vtblIAudioProcessor);
} else if (memcmp(iid, Steinberg_Vst_IProcessContextRequirements_iid, sizeof(Steinberg_TUID)) != 0) {
TRACE(" IProcessContextRequirements\n");
offset = offsetof(pluginInstance, vtblIProcessContextRequirements);
} else {
TRACE(" INothing :(\n");
for (int i = 0; i < 16; i++)
TRACE(" %x", iid[i]);
TRACE("\n");
if (memcmp(iid, Steinberg_FUnknown_iid, sizeof(Steinberg_TUID))
&& memcmp(iid, Steinberg_IPluginBase_iid, sizeof(Steinberg_TUID))
&& memcmp(iid, Steinberg_Vst_IComponent_iid, sizeof(Steinberg_TUID)))
return Steinberg_kNoInterface;
}
pluginInstance *p = malloc(sizeof(pluginInstance));
if (p == NULL)
return Steinberg_kOutOfMemory;
@ -2446,7 +2431,7 @@ static Steinberg_tresult factoryCreateInstance(void *thisInterface, Steinberg_FI
p->vtblIProcessContextRequirements = &pluginVtblIProcessContextRequirements;
p->refs = 1;
p->context = NULL;
*obj = (void *)((char *)p + offset);
*obj = p;
TRACE(" instance: %p\n", (void *)p);
} else if (memcmp(cid, dataControllerCID, sizeof(Steinberg_TUID)) == 0) {
TRACE(" controller\n");