cmake: support building VST3 (#330)

* cmake: support building VST3

* cmake: let VST3 use the same bundle files as VST2

* Reposition the V3_API specifier for MSVC

* Disable VST3 on MSVC until fixed

cmake/DPF-plugin.cmake

@@ -154,7 +154,11 @@ function(dpf_add_plugin NAME)
     elseif(_target STREQUAL "vst2")
       dpf__build_vst2("${NAME}" "${_dgl_library}")
     elseif(_target STREQUAL "vst3")
-      dpf__build_vst3("${NAME}" "${_dgl_library}")
+      if(MSVC)
+        message(WARNING "TODO: VST3 is not supported on MSVC yet")
+      else()
+        dpf__build_vst3("${NAME}" "${_dgl_library}")
+      endif()
     else()
       message(FATAL_ERROR "Unrecognized target type for plugin: ${_target}")
     endif()
@@ -341,12 +345,61 @@ function(dpf__build_vst2 NAME DGL_LIBRARY)
   endif()
 endfunction()
 
+# dpf__determine_vst3_package_architecture
+# ------------------------------------------------------------------------------
+#
+# Determines the package architecture for a VST3 plugin target.
+#
+function(dpf__determine_vst3_package_architecture OUTPUT_VARIABLE)
+  # if set by variable, override the detection
+  if(DPF_VST3_ARCHITECTURE)
+    set("${OUTPUT_VARIABLE}" "${DPF_VST3_ARCHITECTURE}" PARENT_SCOPE)
+    return()
+  endif()
+
+  # not used on Apple, which supports universal binary
+  if(APPLE)
+    set("${OUTPUT_VARIABLE}" "universal" PARENT_SCOPE)
+    return()
+  endif()
+
+  # identify the target processor (special case of MSVC, problematic sometimes)
+  if(MSVC)
+    set(vst3_system_arch "${MSVC_CXX_ARCHITECTURE_ID}")
+  else()
+    set(vst3_system_arch "${CMAKE_SYSTEM_PROCESSOR}")
+  endif()
+
+  # transform the processor name to a format that VST3 recognizes
+  if(vst3_system_arch MATCHES "^(x86_64|amd64|AMD64|x64|X64)$")
+    set(vst3_package_arch "x86_64")
+  elseif(vst3_system_arch MATCHES "^(i.86|x86|X86)$")
+    if(WIN32)
+      set(vst3_package_arch "x86")
+    else()
+      set(vst3_package_arch "i386")
+    endif()
+  elseif(vst3_system_arch MATCHES "^(armv[3-8][a-z]*)$")
+    set(vst3_package_arch "${vst3_system_arch}")
+  elseif(vst3_system_arch MATCHES "^(aarch64)$")
+    set(vst3_package_arch "aarch64")
+  else()
+    message(FATAL_ERROR "We don't know this architecture for VST3: ${vst3_system_arch}.")
+  endif()
+
+  # TODO: the detections for Windows arm/arm64 when supported
+
+  set("${OUTPUT_VARIABLE}" "${vst3_package_arch}" PARENT_SCOPE)
+endfunction()
+
 # dpf__build_vst3
 # ------------------------------------------------------------------------------
 #
 # Add build rules for a VST3 plugin.
 #
 function(dpf__build_vst3 NAME DGL_LIBRARY)
+  dpf__determine_vst3_package_architecture(vst3_arch)
+
   dpf__create_dummy_source_list(_no_srcs)
 
   dpf__add_module("${NAME}-vst3" ${_no_srcs})
@@ -355,22 +408,30 @@ function(dpf__build_vst3 NAME DGL_LIBRARY)
   dpf__set_module_export_list("${NAME}-vst3" "vst3")
   target_link_libraries("${NAME}-vst3" PRIVATE "${NAME}-dsp" "${NAME}-ui")
   set_target_properties("${NAME}-vst3" PROPERTIES
-    LIBRARY_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/bin/$<0:>"
     ARCHIVE_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/obj/vst3/$<0:>"
-    OUTPUT_NAME "${NAME}-vst3"
+    OUTPUT_NAME "${NAME}"
     PREFIX "")
-  # TODO set correct output directory for VST3 packaging
-  #if(APPLE)
-    #set_target_properties("${NAME}-vst3" PROPERTIES
-      #LIBRARY_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/bin/${NAME}.vst3/Contents/MacOS/$<0:>"
-      #OUTPUT_NAME "${NAME}"
-      #SUFFIX "")
-    #set(INFO_PLIST_PROJECT_NAME "${NAME}")
-    #configure_file("${DPF_ROOT_DIR}/utils/plugin.vst3/Contents/Info.plist"
-      #"${PROJECT_BINARY_DIR}/bin/${NAME}.vst3/Contents/Info.plist" @ONLY)
-    #file(COPY "${DPF_ROOT_DIR}/utils/plugin.vst3/Contents/PkgInfo"
-      #DESTINATION "${PROJECT_BINARY_DIR}/bin/${NAME}.vst3/Contents")
-  #endif()
+
+  if(APPLE)
+    set_target_properties("${NAME}-vst3" PROPERTIES
+      LIBRARY_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/bin/${NAME}.vst3/Contents/MacOS/$<0:>"
+      SUFFIX "")
+  elseif(WIN32)
+    set_target_properties("${NAME}-vst3" PROPERTIES
+      LIBRARY_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/bin/${NAME}.vst3/Contents/${vst3_arch}-win/$<0:>")
+  else()
+    set_target_properties("${NAME}-vst3" PROPERTIES
+      LIBRARY_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/bin/${NAME}.vst3/Contents/${vst3_arch}-linux/$<0:>")
+  endif()
+
+  if(APPLE)
+    # Uses the same macOS bundle template as VST2
+    set(INFO_PLIST_PROJECT_NAME "${NAME}")
+    configure_file("${DPF_ROOT_DIR}/utils/plugin.vst/Contents/Info.plist"
+     "${PROJECT_BINARY_DIR}/bin/${NAME}.vst3/Contents/Info.plist" @ONLY)
+    file(COPY "${DPF_ROOT_DIR}/utils/plugin.vst/Contents/PkgInfo"
+     DESTINATION "${PROJECT_BINARY_DIR}/bin/${NAME}.vst3/Contents")
+  endif()
 endfunction()
 
 # dpf__add_dgl_cairo

distrho/src/DistrhoPluginVST3.cpp

@@ -106,8 +106,8 @@ static dpf_tuid dpf_tuid_view = { dpf_id_entry, dpf_id_view, 0, 0 };
 
 struct v3_attribute_list_utf8 {
     struct v3_funknown;
-    V3_API v3_result (*set_string_utf8)(void* self, const char* id, const char* string);
-    V3_API v3_result (*get_string_utf8)(void* self, const char* id, char* string, uint32_t size);
+    v3_result (V3_API *set_string_utf8)(void* self, const char* id, const char* string);
+    v3_result (V3_API *get_string_utf8)(void* self, const char* id, char* string, uint32_t size);
 };
 
 static constexpr const v3_tuid v3_attribute_list_utf8_iid =

distrho/src/DistrhoUIVST3.cpp

@@ -58,8 +58,8 @@ v3_message** dpf_message_create(const char* id);
 
 struct v3_attribute_list_utf8 {
     struct v3_funknown;
-    V3_API v3_result (*set_string_utf8)(void* self, const char* id, const char* string);
-    V3_API v3_result (*get_string_utf8)(void* self, const char* id, char* string, uint32_t size);
+    v3_result (V3_API *set_string_utf8)(void* self, const char* id, const char* string);
+    v3_result (V3_API *get_string_utf8)(void* self, const char* id, char* string, uint32_t size);
 };
 
 static constexpr const v3_tuid v3_attribute_list_utf8_iid =
@@ -542,7 +542,7 @@ struct dpf_plugin_view_content_scale : v3_plugin_view_content_scale_cpp {
     // ----------------------------------------------------------------------------------------------------------------
     // v3_funknown
 
-    static V3_API v3_result query_interface_fn(void* self, const v3_tuid iid, void** iface)
+    static v3_result V3_API query_interface_fn(void* self, const v3_tuid iid, void** iface)
     {
         d_stdout("dpf_plugin_view_content_scale::query_interface    => %p %s %p", self, tuid2str(iid), iface);
         *iface = NULL;
@@ -566,13 +566,13 @@ struct dpf_plugin_view_content_scale : v3_plugin_view_content_scale_cpp {
     }
 
     // there is only a single instance of this, so we don't have to care here
-    static V3_API uint32_t ref_fn(void*) { return 1; };
-    static V3_API uint32_t unref_fn(void*) { return 0; };
+    static uint32_t V3_API ref_fn(void*) { return 1; };
+    static uint32_t V3_API unref_fn(void*) { return 0; };
 
     // ----------------------------------------------------------------------------------------------------------------
     // v3_plugin_view_content_scale_steinberg
 
-    static V3_API v3_result set_content_scale_factor_fn(void* self, float factor)
+    static v3_result V3_API set_content_scale_factor_fn(void* self, float factor)
     {
         d_stdout("dpf_plugin_view::set_content_scale_factor => %p %f", self, factor);
         dpf_plugin_view_content_scale* const scale = *(dpf_plugin_view_content_scale**)self;

distrho/src/travesty/audio_processor.h

@@ -92,10 +92,10 @@ struct v3_process_setup {
 struct v3_param_value_queue {
 	struct v3_funknown;
 
-	V3_API v3_param_id (*get_param_id)(void* self);
-	V3_API int32_t (*get_point_count)(void* self);
-	V3_API v3_result (*get_point)(void* self, int32_t idx, int32_t* sample_offset, double* value);
-	V3_API v3_result (*add_point)(void* self, int32_t sample_offset, double value, int32_t* idx);
+	v3_param_id (V3_API *get_param_id)(void* self);
+	int32_t (V3_API *get_point_count)(void* self);
+	v3_result (V3_API *get_point)(void* self, int32_t idx, int32_t* sample_offset, double* value);
+	v3_result (V3_API *add_point)(void* self, int32_t sample_offset, double value, int32_t* idx);
 };
 
 static constexpr const v3_tuid v3_param_value_queue_iid =
@@ -104,9 +104,9 @@ static constexpr const v3_tuid v3_param_value_queue_iid =
 struct v3_param_changes {
 	struct v3_funknown;
 
-	V3_API int32_t (*get_param_count)(void* self);
-	V3_API struct v3_param_value_queue** (*get_param_data)(void* self, int32_t idx);
-	V3_API struct v3_param_value_queue** (*add_param_data)(void* self, v3_param_id* id, int32_t* index);
+	int32_t (V3_API *get_param_count)(void* self);
+	struct v3_param_value_queue** (V3_API *get_param_data)(void* self, int32_t idx);
+	struct v3_param_value_queue** (V3_API *add_param_data)(void* self, v3_param_id* id, int32_t* index);
 };
 
 static constexpr const v3_tuid v3_param_changes_iid =
@@ -183,7 +183,7 @@ enum {
 struct v3_process_context_requirements {
 	struct v3_funknown;
 
-	V3_API uint32_t (*get_process_context_requirements)(void* self);
+	uint32_t (V3_API *get_process_context_requirements)(void* self);
 };
 
 static constexpr const v3_tuid v3_process_context_requirements_iid =
@@ -224,15 +224,15 @@ struct v3_process_data {
 struct v3_audio_processor {
 	struct v3_funknown;
 
-	V3_API v3_result (*set_bus_arrangements)(void* self, v3_speaker_arrangement* inputs, int32_t num_inputs,
+	v3_result (V3_API *set_bus_arrangements)(void* self, v3_speaker_arrangement* inputs, int32_t num_inputs,
 	                                         v3_speaker_arrangement* outputs, int32_t num_outputs);
-	V3_API v3_result (*get_bus_arrangement)(void* self, int32_t bus_direction, int32_t idx, v3_speaker_arrangement*);
-	V3_API v3_result (*can_process_sample_size)(void* self, int32_t symbolic_sample_size);
-	V3_API uint32_t (*get_latency_samples)(void* self);
-	V3_API v3_result (*setup_processing)(void* self, struct v3_process_setup* setup);
-	V3_API v3_result (*set_processing)(void* self, v3_bool state);
-	V3_API v3_result (*process)(void* self, struct v3_process_data* data);
-	V3_API uint32_t (*get_tail_samples)(void* self);
+	v3_result (V3_API *get_bus_arrangement)(void* self, int32_t bus_direction, int32_t idx, v3_speaker_arrangement*);
+	v3_result (V3_API *can_process_sample_size)(void* self, int32_t symbolic_sample_size);
+	uint32_t (V3_API *get_latency_samples)(void* self);
+	v3_result (V3_API *setup_processing)(void* self, struct v3_process_setup* setup);
+	v3_result (V3_API *set_processing)(void* self, v3_bool state);
+	v3_result (V3_API *process)(void* self, struct v3_process_data* data);
+	uint32_t (V3_API *get_tail_samples)(void* self);
 };
 
 static constexpr const v3_tuid v3_audio_processor_iid =

distrho/src/travesty/base.h

@@ -160,9 +160,9 @@ enum {
  */
 
 struct v3_funknown {
-	V3_API v3_result (*query_interface)(void* self, const v3_tuid iid, void** obj);
-	V3_API uint32_t (*ref)(void* self);
-	V3_API uint32_t (*unref)(void* self);
+	v3_result (V3_API *query_interface)(void* self, const v3_tuid iid, void** obj);
+	uint32_t (V3_API *ref)(void* self);
+	uint32_t (V3_API *unref)(void* self);
 };
 
 static constexpr const v3_tuid v3_funknown_iid =
@@ -175,8 +175,8 @@ static constexpr const v3_tuid v3_funknown_iid =
 struct v3_plugin_base {
 	struct v3_funknown;
 
-	V3_API v3_result (*initialise)(void* self, struct v3_funknown* context);
-	V3_API v3_result (*terminate)(void* self);
+	v3_result (V3_API *initialise)(void* self, struct v3_funknown* context);
+	v3_result (V3_API *terminate)(void* self);
 };
 
 static constexpr const v3_tuid v3_plugin_base_iid =

distrho/src/travesty/bstream.h

@@ -27,10 +27,10 @@ enum v3_seek_mode {
 struct v3_bstream {
 	struct v3_funknown;
 
-	V3_API v3_result (*read)(void* self, void* buffer, int32_t num_bytes, int32_t* bytes_read);
-	V3_API v3_result (*write)(void* self, void* buffer, int32_t num_bytes, int32_t* bytes_written);
-	V3_API v3_result (*seek)(void* self, int64_t pos, int32_t seek_mode, int64_t* result);
-	V3_API v3_result (*tell)(void* self, int64_t* pos);
+	v3_result (V3_API *read)(void* self, void* buffer, int32_t num_bytes, int32_t* bytes_read);
+	v3_result (V3_API *write)(void* self, void* buffer, int32_t num_bytes, int32_t* bytes_written);
+	v3_result (V3_API *seek)(void* self, int64_t pos, int32_t seek_mode, int64_t* result);
+	v3_result (V3_API *tell)(void* self, int64_t* pos);
 };
 
 static constexpr const v3_tuid v3_bstream_iid =

distrho/src/travesty/component.h

@@ -91,17 +91,17 @@ struct v3_routing_info;
 struct v3_component {
 	struct v3_plugin_base;
 
-	V3_API v3_result (*get_controller_class_id)(void* self, v3_tuid class_id);
-	V3_API v3_result (*set_io_mode)(void* self, int32_t io_mode);
-	V3_API int32_t (*get_bus_count)(void* self, int32_t media_type, int32_t bus_direction);
-	V3_API v3_result (*get_bus_info)(void* self, int32_t media_type, int32_t bus_direction,
+	v3_result (V3_API *get_controller_class_id)(void* self, v3_tuid class_id);
+	v3_result (V3_API *set_io_mode)(void* self, int32_t io_mode);
+	int32_t (V3_API *get_bus_count)(void* self, int32_t media_type, int32_t bus_direction);
+	v3_result (V3_API *get_bus_info)(void* self, int32_t media_type, int32_t bus_direction,
                                      int32_t bus_idx, struct v3_bus_info* bus_info);
-	V3_API v3_result (*get_routing_info)(void* self, struct v3_routing_info* input, struct v3_routing_info* output);
-	V3_API v3_result (*activate_bus)(void* self, int32_t media_type, int32_t bus_direction,
+	v3_result (V3_API *get_routing_info)(void* self, struct v3_routing_info* input, struct v3_routing_info* output);
+	v3_result (V3_API *activate_bus)(void* self, int32_t media_type, int32_t bus_direction,
                                      int32_t bus_idx, v3_bool state);
-	V3_API v3_result (*set_active)(void* self, v3_bool state);
-	V3_API v3_result (*set_state)(void* self, struct v3_bstream **);
-	V3_API v3_result (*get_state)(void* self, struct v3_bstream **);
+	v3_result (V3_API *set_active)(void* self, v3_bool state);
+	v3_result (V3_API *set_state)(void* self, struct v3_bstream **);
+	v3_result (V3_API *get_state)(void* self, struct v3_bstream **);
 };
 
 static constexpr const v3_tuid v3_component_iid =

distrho/src/travesty/edit_controller.h

@@ -42,10 +42,10 @@ enum {
 struct v3_component_handler {
 	struct v3_funknown;
 
-	V3_API v3_result (*begin_edit)(void* self, v3_param_id);
-	V3_API v3_result (*perform_edit)(void* self, v3_param_id, double value_normalised);
-	V3_API v3_result (*end_edit)(void* self, v3_param_id);
-	V3_API v3_result (*restart_component)(void* self, int32_t flags);
+	v3_result (V3_API *begin_edit)(void* self, v3_param_id);
+	v3_result (V3_API *perform_edit)(void* self, v3_param_id, double value_normalised);
+	v3_result (V3_API *end_edit)(void* self, v3_param_id);
+	v3_result (V3_API *restart_component)(void* self, int32_t flags);
 };
 
 static constexpr const v3_tuid v3_component_handler_iid =
@@ -79,19 +79,19 @@ struct v3_param_info {
 struct v3_edit_controller {
 	struct v3_plugin_base;
 
-	V3_API v3_result (*set_component_state)(void* self, struct v3_bstream*);
-	V3_API v3_result (*set_state)(void* self, struct v3_bstream*);
-	V3_API v3_result (*get_state)(void* self, struct v3_bstream*);
-	V3_API int32_t (*get_parameter_count)(void* self);
-	V3_API v3_result (*get_parameter_info)(void* self, int32_t param_idx, struct v3_param_info*);
-	V3_API v3_result (*get_parameter_string_for_value)(void* self, v3_param_id, double normalised, v3_str_128 output);
-	V3_API v3_result (*get_parameter_value_for_string)(void* self, v3_param_id, int16_t* input, double* output);
-	V3_API double (*normalised_parameter_to_plain)(void* self, v3_param_id, double normalised);
-	V3_API double (*plain_parameter_to_normalised)(void* self, v3_param_id, double plain);
-	V3_API double (*get_parameter_normalised)(void* self, v3_param_id);
-	V3_API v3_result (*set_parameter_normalised)(void* self, v3_param_id, double normalised);
-	V3_API v3_result (*set_component_handler)(void* self, struct v3_component_handler**);
-	V3_API struct v3_plugin_view **(*create_view)(void* self, const char* name);
+	v3_result (V3_API *set_component_state)(void* self, struct v3_bstream*);
+	v3_result (V3_API *set_state)(void* self, struct v3_bstream*);
+	v3_result (V3_API *get_state)(void* self, struct v3_bstream*);
+	int32_t (V3_API *get_parameter_count)(void* self);
+	v3_result (V3_API *get_parameter_info)(void* self, int32_t param_idx, struct v3_param_info*);
+	v3_result (V3_API *get_parameter_string_for_value)(void* self, v3_param_id, double normalised, v3_str_128 output);
+	v3_result (V3_API *get_parameter_value_for_string)(void* self, v3_param_id, int16_t* input, double* output);
+	double (V3_API *normalised_parameter_to_plain)(void* self, v3_param_id, double normalised);
+	double (V3_API *plain_parameter_to_normalised)(void* self, v3_param_id, double plain);
+	double (V3_API *get_parameter_normalised)(void* self, v3_param_id);
+	v3_result (V3_API *set_parameter_normalised)(void* self, v3_param_id, double normalised);
+	v3_result (V3_API *set_component_handler)(void* self, struct v3_component_handler**);
+	struct v3_plugin_view** (V3_API *create_view)(void* self, const char* name);
 };
 
 static constexpr const v3_tuid v3_edit_controller_iid =

distrho/src/travesty/events.h

@@ -137,9 +137,9 @@ struct v3_event {
 struct v3_event_list {
 	struct v3_funknown;
 
-	V3_API uint32_t (*get_event_count)(void* self);
-	V3_API v3_result (*get_event)(void* self, int32_t idx, struct v3_event* event);
-	V3_API v3_result (*add_event)(void* self, struct v3_event* event);
+	uint32_t (V3_API *get_event_count)(void* self);
+	v3_result (V3_API *get_event)(void* self, int32_t idx, struct v3_event* event);
+	v3_result (V3_API *add_event)(void* self, struct v3_event* event);
 };
 
 static constexpr const v3_tuid v3_event_list_iid =

distrho/src/travesty/factory.h

@@ -39,10 +39,10 @@ struct v3_class_info {
 struct v3_plugin_factory {
 	struct v3_funknown;
 
-	V3_API v3_result (*get_factory_info)(void* self, struct v3_factory_info*);
-	V3_API int32_t (*num_classes)(void* self);
-	V3_API v3_result (*get_class_info)(void* self, int32_t idx, struct v3_class_info*);
-	V3_API v3_result (*create_instance)(void* self, const v3_tuid class_id, const v3_tuid iid, void** instance);
+	v3_result (V3_API *get_factory_info)(void* self, struct v3_factory_info*);
+	int32_t (V3_API *num_classes)(void* self);
+	v3_result (V3_API *get_class_info)(void* self, int32_t idx, struct v3_class_info*);
+	v3_result (V3_API *create_instance)(void* self, const v3_tuid class_id, const v3_tuid iid, void** instance);
 };
 
 static constexpr const v3_tuid v3_plugin_factory_iid =
@@ -67,7 +67,7 @@ struct v3_class_info_2 {
 struct v3_plugin_factory_2 {
 	struct v3_plugin_factory;
 
-	V3_API v3_result (*get_class_info_2)(void* self, int32_t idx, struct v3_class_info_2*);
+	v3_result (V3_API *get_class_info_2)(void* self, int32_t idx, struct v3_class_info_2*);
 };
 
 static constexpr const v3_tuid v3_plugin_factory_2_iid =
@@ -95,8 +95,8 @@ struct v3_class_info_3 {
 struct v3_plugin_factory_3 {
 	struct v3_plugin_factory_2;
 
-	V3_API v3_result (*get_class_info_utf16)(void* self, int32_t idx, struct v3_class_info_3*);
-	V3_API v3_result (*set_host_context)(void* self, struct v3_funknown* host);
+	v3_result (V3_API *get_class_info_utf16)(void* self, int32_t idx, struct v3_class_info_3*);
+	v3_result (V3_API *set_host_context)(void* self, struct v3_funknown* host);
 };
 
 static constexpr const v3_tuid v3_plugin_factory_3_iid =

distrho/src/travesty/message.h

@@ -27,14 +27,14 @@
 struct v3_attribute_list {
 	struct v3_funknown;
 
-	V3_API v3_result (*set_int)(void* self, const char* id, int64_t value);
-	V3_API v3_result (*get_int)(void* self, const char* id, int64_t* value);
-	V3_API v3_result (*set_float)(void* self, const char* id, double value);
-	V3_API v3_result (*get_float)(void* self, const char* id, double* value);
-	V3_API v3_result (*set_string)(void* self, const char* id, const int16_t* string);
-	V3_API v3_result (*get_string)(void* self, const char* id, int16_t* string, uint32_t size);
-	V3_API v3_result (*set_binary)(void* self, const char* id, const void* data, uint32_t size);
-	V3_API v3_result (*get_binary)(void* self, const char* id, const void** data, uint32_t* size);
+	v3_result (V3_API *set_int)(void* self, const char* id, int64_t value);
+	v3_result (V3_API *get_int)(void* self, const char* id, int64_t* value);
+	v3_result (V3_API *set_float)(void* self, const char* id, double value);
+	v3_result (V3_API *get_float)(void* self, const char* id, double* value);
+	v3_result (V3_API *set_string)(void* self, const char* id, const int16_t* string);
+	v3_result (V3_API *get_string)(void* self, const char* id, int16_t* string, uint32_t size);
+	v3_result (V3_API *set_binary)(void* self, const char* id, const void* data, uint32_t size);
+	v3_result (V3_API *get_binary)(void* self, const char* id, const void** data, uint32_t* size);
 };
 
 static constexpr const v3_tuid v3_attribute_list_iid =
@@ -47,9 +47,9 @@ static constexpr const v3_tuid v3_attribute_list_iid =
 struct v3_message {
 	struct v3_funknown;
 
-	V3_API const char* (*get_message_id)(void* self);
-	V3_API void (*set_message_id)(void* self, const char* id);
-	V3_API v3_attribute_list** (*get_attributes)(void* self);
+	const char* (V3_API *get_message_id)(void* self);
+	void (V3_API *set_message_id)(void* self, const char* id);
+	v3_attribute_list** (V3_API *get_attributes)(void* self);
 };
 
 static constexpr const v3_tuid v3_message_iid =
@@ -62,9 +62,9 @@ static constexpr const v3_tuid v3_message_iid =
 struct v3_connection_point {
 	struct v3_funknown;
 
-	V3_API v3_result (*connect)(void* self, struct v3_connection_point** other);
-	V3_API v3_result (*disconnect)(void* self, struct v3_connection_point** other);
-	V3_API v3_result (*notify)(void* self, struct v3_message** message);
+	v3_result (V3_API *connect)(void* self, struct v3_connection_point** other);
+	v3_result (V3_API *disconnect)(void* self, struct v3_connection_point** other);
+	v3_result (V3_API *notify)(void* self, struct v3_message** message);
 };
 
 static constexpr const v3_tuid v3_connection_point_iid =

distrho/src/travesty/view.h

@@ -50,18 +50,18 @@ struct v3_plugin_frame;
 struct v3_plugin_view {
 	struct v3_funknown;
 
-	V3_API v3_result (*is_platform_type_supported)(void* self, const char* platform_type);
-	V3_API v3_result (*attached)(void* self, void* parent, const char* platform_type);
-	V3_API v3_result (*removed)(void* self);
-	V3_API v3_result (*on_wheel)(void* self, float distance);
-	V3_API v3_result (*on_key_down)(void* self, int16_t key_char, int16_t key_code, int16_t modifiers);
-	V3_API v3_result (*on_key_up)(void* self, int16_t key_char, int16_t key_code, int16_t modifiers);
-	V3_API v3_result (*get_size)(void* self, struct v3_view_rect*);
-	V3_API v3_result (*on_size)(void* self, struct v3_view_rect*);
-	V3_API v3_result (*on_focus)(void* self, v3_bool state);
-	V3_API v3_result (*set_frame)(void* self, struct v3_plugin_frame**);
-	V3_API v3_result (*can_resize)(void* self);
-	V3_API v3_result (*check_size_constraint)(void* self, struct v3_view_rect*);
+	v3_result (V3_API *is_platform_type_supported)(void* self, const char* platform_type);
+	v3_result (V3_API *attached)(void* self, void* parent, const char* platform_type);
+	v3_result (V3_API *removed)(void* self);
+	v3_result (V3_API *on_wheel)(void* self, float distance);
+	v3_result (V3_API *on_key_down)(void* self, int16_t key_char, int16_t key_code, int16_t modifiers);
+	v3_result (V3_API *on_key_up)(void* self, int16_t key_char, int16_t key_code, int16_t modifiers);
+	v3_result (V3_API *get_size)(void* self, struct v3_view_rect*);
+	v3_result (V3_API *on_size)(void* self, struct v3_view_rect*);
+	v3_result (V3_API *on_focus)(void* self, v3_bool state);
+	v3_result (V3_API *set_frame)(void* self, struct v3_plugin_frame**);
+	v3_result (V3_API *can_resize)(void* self);
+	v3_result (V3_API *check_size_constraint)(void* self, struct v3_view_rect*);
 };
 
 static constexpr const v3_tuid v3_plugin_view_iid =
@@ -74,7 +74,7 @@ static constexpr const v3_tuid v3_plugin_view_iid =
 struct v3_plugin_frame {
 	struct v3_funknown;
 
-	V3_API v3_result (*resize_view)(void* self, struct v3_plugin_view**, struct v3_view_rect*);
+	v3_result (V3_API *resize_view)(void* self, struct v3_plugin_view**, struct v3_view_rect*);
 };
 
 static constexpr const v3_tuid v3_plugin_frame_iid =
@@ -88,7 +88,7 @@ static constexpr const v3_tuid v3_plugin_frame_iid =
 struct v3_plugin_view_content_scale {
 	struct v3_funknown;
 
-	V3_API v3_result (*set_content_scale_factor)(void* self, float factor);
+	v3_result (V3_API *set_content_scale_factor)(void* self, float factor);
 };
 
 static constexpr const v3_tuid v3_plugin_view_content_scale_iid =
@@ -101,7 +101,7 @@ static constexpr const v3_tuid v3_plugin_view_content_scale_iid =
 struct v3_plugin_view_parameter_finder {
 	struct v3_funknown;
 
-	V3_API v3_result (*find_parameter)(void* self, int32_t x, int32_t y, v3_param_id *);
+	v3_result (V3_API *find_parameter)(void* self, int32_t x, int32_t y, v3_param_id *);
 };
 
 static constexpr const v3_tuid v3_plugin_view_parameter_finder_iid =

examples/Info/CMakeLists.txt

@@ -2,7 +2,7 @@
 # ------------------------------ #
 
 dpf_add_plugin(d_info
-  TARGETS jack lv2 vst2
+  TARGETS jack lv2 vst2 vst3
   FILES_DSP
       InfoExamplePlugin.cpp
   FILES_UI

examples/Latency/CMakeLists.txt

@@ -2,7 +2,7 @@
 # ------------------------------ #
 
 dpf_add_plugin(d_latency
-  TARGETS ladspa lv2 vst2
+  TARGETS ladspa lv2 vst2 vst3
   FILES_DSP
       LatencyExamplePlugin.cpp)
 

examples/Meters/CMakeLists.txt

@@ -2,7 +2,7 @@
 # ------------------------------ #
 
 dpf_add_plugin(d_meters
-  TARGETS jack dssi lv2 vst2
+  TARGETS jack dssi lv2 vst2 vst3
   FILES_DSP
       ExamplePluginMeters.cpp
   FILES_UI

examples/MidiThrough/CMakeLists.txt

@@ -2,7 +2,7 @@
 # ------------------------------ #
 
 dpf_add_plugin(d_midiThrough
-  TARGETS jack lv2 vst2
+  TARGETS jack lv2 vst2 vst3
   FILES_DSP
       MidiThroughExamplePlugin.cpp)
 

examples/Parameters/CMakeLists.txt

@@ -2,7 +2,7 @@
 # ------------------------------ #
 
 dpf_add_plugin(d_parameters
-  TARGETS jack ladspa dssi lv2 vst2
+  TARGETS jack ladspa dssi lv2 vst2 vst3
   FILES_DSP
      ExamplePluginParameters.cpp
   FILES_UI

examples/States/CMakeLists.txt

@@ -2,7 +2,7 @@
 # ------------------------------ #
 
 dpf_add_plugin(d_states
-  TARGETS jack lv2 vst2
+  TARGETS jack lv2 vst2 vst3
   FILES_DSP
       ExamplePluginStates.cpp
   FILES_UI