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GPU (Intel): adds comments

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李通洲
2026-06-27 09:15:39 +08:00
parent e0d141ecf6
commit e0ae1ac1a2
1 changed files with 5 additions and 2 deletions
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src/detection/gpu/gpu_intel.c
+5 -2
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@@ -66,7 +66,10 @@ const char* ffDetectIntelGpuInfo(const FFGpuDriverCondition* cond, FFGpuDriverRe
}
uint32_t deviceCount = 0;
if (igclData.ffctlEnumerateDevices(igclData.apiHandle, &deviceCount, NULL)) {
// ctlEnumerateDevices MUST be called with deviceCount = 0 and devices = NULL first,
// otherwise it will be silently ignored and return CTL_RESULT_SUCCESS with deviceCount and devices unmodified.
// VERY STRANGE BEHAVIOR
if (igclData.ffctlEnumerateDevices(igclData.apiHandle, &deviceCount, NULL) != CTL_RESULT_SUCCESS) {
return "ctlEnumerateDevices(NULL) failed";
}
if (deviceCount == 0) {
@@ -74,7 +77,7 @@ const char* ffDetectIntelGpuInfo(const FFGpuDriverCondition* cond, FFGpuDriverRe
}
FF_AUTO_FREE ctl_device_adapter_handle_t* devices = malloc(deviceCount * sizeof(*devices));
if (igclData.ffctlEnumerateDevices(igclData.apiHandle, &deviceCount, devices)) {
if (igclData.ffctlEnumerateDevices(igclData.apiHandle, &deviceCount, devices) != CTL_RESULT_SUCCESS) {
return "ctlEnumerateDevices(devices) failed";
}