whisper : add context param to disable gpu (#1293)

* whisper : check state->ctx_metal not null

* whisper : add whisper_context_params { use_gpu }

* whisper : new API with params & deprecate old API

* examples : use no-gpu param && whisper_init_from_file_with_params

* whisper.objc : enable metal & disable on simulator

* whisper.swiftui, metal : enable metal & support load default.metallib

* whisper.android : use new API

* bindings : use new API

* addon.node : fix build & test

* bindings : updata java binding

* bindings : add missing whisper_context_default_params_by_ref WHISPER_API for java

* metal : use SWIFTPM_MODULE_BUNDLE for GGML_SWIFT and reuse library load

* metal : move bundle var into block

* metal : use SWIFT_PACKAGE instead of GGML_SWIFT

* style : minor updates

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

examples/whisper.objc/whisper.objc/ViewController.m

@@ -61,7 +61,13 @@ void AudioInputCallback(void * inUserData,
         NSLog(@"Loading model from %@", modelPath);
 
         // create ggml context
-        stateInp.ctx = whisper_init_from_file([modelPath UTF8String]);
+
+        struct whisper_context_params cparams = whisper_context_default_params();
+#if TARGET_OS_SIMULATOR
+        cparams.use_gpu = false;
+        NSLog(@"Running on simulator, using CPU");
+#endif
+        stateInp.ctx = whisper_init_from_file_with_params([modelPath UTF8String], cparams);
 
         // check if the model was loaded successfully
         if (stateInp.ctx == NULL) {