Import foreign instruments

plugins/CMakeLists.txt

@@ -1,10 +1,15 @@
 add_library(plugins-common STATIC EXCLUDE_FROM_ALL
     "common/plugin/MessageUtils.h"
-    "common/plugin/MessageUtils.cpp")
+    "common/plugin/MessageUtils.cpp"
+    "common/plugin/ForeignInstrument.h"
+    "common/plugin/ForeignInstrument.cpp"
+    "common/plugin/foreign_instruments/AudioFile.h"
+    "common/plugin/foreign_instruments/AudioFile.cpp")
 target_include_directories(plugins-common PUBLIC "common")
 target_link_libraries(plugins-common
     PUBLIC sfizz::spin_mutex
-    PUBLIC absl::strings)
+    PUBLIC sfizz::filesystem absl::strings
+    PRIVATE sfizz::pugixml absl::memory)
 add_library(sfizz::plugins-common ALIAS plugins-common)
 
 if((SFIZZ_LV2 AND SFIZZ_LV2_UI) OR SFIZZ_VST)

plugins/common/plugin/ForeignInstrument.cpp

@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: BSD-2-Clause
+
+// This code is part of the sfizz library and is licensed under a BSD 2-clause
+// license. You should have receive a LICENSE.md file along with the code.
+// If not, contact the sfizz maintainers at https://github.com/sfztools/sfizz
+
+#include "ForeignInstrument.h"
+#include "foreign_instruments/AudioFile.h"
+
+namespace sfz {
+
+InstrumentFormatRegistry::InstrumentFormatRegistry()
+    : formats_ {
+            &AudioFileInstrumentFormat::getInstance(),
+      }
+{
+}
+
+InstrumentFormatRegistry& InstrumentFormatRegistry::getInstance()
+{
+    static InstrumentFormatRegistry registry;
+    return registry;
+}
+
+const InstrumentFormat* InstrumentFormatRegistry::getMatchingFormat(const fs::path& path) const
+{
+    const InstrumentFormat* resultFormat = nullptr;
+
+    for (const InstrumentFormat* currentFormat : formats_) {
+        if (currentFormat->matchesFilePath(path)) {
+            resultFormat = currentFormat;
+            break;
+        }
+    }
+
+    return resultFormat;
+}
+
+} // namespace sfz

plugins/common/plugin/ForeignInstrument.h

@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: BSD-2-Clause
+
+// This code is part of the sfizz library and is licensed under a BSD 2-clause
+// license. You should have receive a LICENSE.md file along with the code.
+// If not, contact the sfizz maintainers at https://github.com/sfztools/sfizz
+
+#pragma once
+#include <ghc/fs_std.hpp>
+#include <string>
+#include <vector>
+#include <memory>
+
+namespace sfz {
+
+class InstrumentFormat;
+class InstrumentImporter;
+
+/**
+ * Registry of known non-SFZ instrument formats
+ */
+class InstrumentFormatRegistry {
+private:
+    InstrumentFormatRegistry();
+
+public:
+    /**
+     * @brief Get the single instance of the registry
+     */
+    static InstrumentFormatRegistry& getInstance();
+
+    /**
+     * @brief Get a format which is able to handle a file which goes by the
+     * given path name, or null otherwise.
+     */
+    const InstrumentFormat* getMatchingFormat(const fs::path& path) const;
+
+private:
+    std::vector<const InstrumentFormat*> formats_;
+};
+
+/**
+ * Description of a non-SFZ instrument format
+ */
+class InstrumentFormat {
+public:
+    virtual ~InstrumentFormat() {}
+
+    /**
+     * @brief Get the name of the instrument format
+     */
+    virtual const char* name() const noexcept = 0;
+
+    /**
+     * @brief Checks whether this importer matches files of the given path
+     *
+     * This should check for a pattern like such as a file extension, but not
+     * examine the contents of the file itself.
+     */
+    virtual bool matchesFilePath(const fs::path& path) const = 0;
+
+    /**
+     * @brief Create a new importer for instrument files of this format
+     */
+    virtual std::unique_ptr<InstrumentImporter> createImporter() const = 0;
+};
+
+/**
+ * Importer of non-SFZ instruments
+ */
+class InstrumentImporter {
+public:
+    /**
+     * @brief Get the format that this importer converts from
+     */
+    virtual const InstrumentFormat* getFormat() const noexcept = 0;
+
+    /**
+     * @brief Process the file and convert to an equivalent SFZ string
+     */
+    virtual std::string convertToSfz(const fs::path& path) const = 0;
+};
+
+} // namespace sfz

plugins/common/plugin/foreign_instruments/AudioFile.cpp

@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: BSD-2-Clause
+
+// This code is part of the sfizz library and is licensed under a BSD 2-clause
+// license. You should have receive a LICENSE.md file along with the code.
+// If not, contact the sfizz maintainers at https://github.com/sfztools/sfizz
+
+#include "AudioFile.h"
+#include <absl/strings/match.h>
+#include <absl/strings/string_view.h>
+#include <absl/memory/memory.h>
+#include <locale>
+#include <sstream>
+
+namespace sfz {
+
+static const char* kRecognizedAudioExtensions[] = {
+    ".wav", ".flac", ".ogg", ".mp3", ".aif", ".aiff", ".aifc",
+};
+
+///
+AudioFileInstrumentFormat& AudioFileInstrumentFormat::getInstance()
+{
+    static AudioFileInstrumentFormat format;
+    return format;
+}
+
+const char* AudioFileInstrumentFormat::name() const noexcept
+{
+    return "Audio file";
+}
+
+bool AudioFileInstrumentFormat::matchesFilePath(const fs::path& path) const
+{
+    const std::string ext = path.extension().u8string();
+
+    for (absl::string_view knownExt : kRecognizedAudioExtensions) {
+        if (absl::EqualsIgnoreCase(ext, knownExt))
+            return true;
+    }
+
+    return false;
+}
+
+std::unique_ptr<InstrumentImporter> AudioFileInstrumentFormat::createImporter() const
+{
+    return absl::make_unique<AudioFileInstrumentImporter>();
+}
+
+///
+std::string AudioFileInstrumentImporter::convertToSfz(const fs::path& path) const
+{
+    std::ostringstream os;
+    os.imbue(std::locale::classic());
+    os << "<region>sample=" << path.filename().u8string();
+    return os.str();
+}
+
+const InstrumentFormat* AudioFileInstrumentImporter::getFormat() const noexcept
+{
+    return &AudioFileInstrumentFormat::getInstance();
+}
+
+} // namespace sfz

plugins/common/plugin/foreign_instruments/AudioFile.h

@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: BSD-2-Clause
+
+// This code is part of the sfizz library and is licensed under a BSD 2-clause
+// license. You should have receive a LICENSE.md file along with the code.
+// If not, contact the sfizz maintainers at https://github.com/sfztools/sfizz
+
+#pragma once
+#include "../ForeignInstrument.h"
+
+namespace sfz {
+
+class AudioFileInstrumentFormat : public InstrumentFormat {
+private:
+    AudioFileInstrumentFormat() noexcept = default;
+
+public:
+    static AudioFileInstrumentFormat& getInstance();
+    const char* name() const noexcept override;
+    bool matchesFilePath(const fs::path& path) const override;
+    std::unique_ptr<InstrumentImporter> createImporter() const override;
+};
+
+///
+class AudioFileInstrumentImporter : public InstrumentImporter {
+public:
+    std::string convertToSfz(const fs::path& path) const override;
+    const InstrumentFormat* getFormat() const noexcept override;
+};
+
+} // namespace sfz

plugins/editor/cmake/Vstgui.cmake

@@ -208,7 +208,9 @@ endif()
 
 if(CMAKE_SYSTEM_NAME STREQUAL "Windows")
     # higher C++ requirement on Windows
-    set_property(TARGET sfizz_vstgui PROPERTY CXX_STANDARD 14)
+    if(NOT CMAKE_CXX_STANDARD OR CMAKE_CXX_STANDARD LESS 14)
+        set_property(TARGET sfizz_vstgui PROPERTY CXX_STANDARD 14)
+    endif()
     # Windows 10 RS2 DDI for custom fonts
     target_compile_definitions(sfizz_vstgui PRIVATE "NTDDI_VERSION=0x0A000003")
     # disable custom fonts while dwrite3 API is unavailable in MinGW

plugins/editor/src/editor/Editor.cpp

@@ -1069,6 +1069,15 @@ void Editor::Impl::chooseSfzFile()
     fs->setTitle("Load SFZ file");
     fs->setDefaultExtension(CFileExtension("SFZ", "sfz"));
 
+    // also add extensions of importable files
+    fs->addFileExtension(CFileExtension("WAV", "wav"));
+    fs->addFileExtension(CFileExtension("FLAC", "flac"));
+    fs->addFileExtension(CFileExtension("OGG", "ogg"));
+    fs->addFileExtension(CFileExtension("MP3", "mp3"));
+    fs->addFileExtension(CFileExtension("AIF", "aif"));
+    fs->addFileExtension(CFileExtension("AIFF", "aiff"));
+    fs->addFileExtension(CFileExtension("AIFC", "aifc"));
+
     std::string initialDir = getFileChooserInitialDir(currentSfzFile_);
     if (!initialDir.empty())
         fs->setInitialDirectory(initialDir.c_str());

plugins/lv2/sfizz.cpp

@@ -34,6 +34,8 @@
 
 #include "sfizz_lv2.h"
 
+#include "plugin/ForeignInstrument.h"
+
 #include <lv2/atom/atom.h>
 #include <lv2/atom/forge.h>
 #include <lv2/atom/util.h>
@@ -1173,14 +1175,29 @@ sfizz_lv2_update_file_info(sfizz_plugin_t* self, const char *file_path)
 static bool
 sfizz_lv2_load_file(sfizz_plugin_t *self, const char *file_path)
 {
+    bool status;
+
     char buf[MAX_PATH_SIZE];
     if (file_path[0] == '\0')
     {
         sfizz_lv2_get_default_sfz_path(self, buf, MAX_PATH_SIZE);
         file_path = buf;
     }
 
-    bool status = sfizz_load_file(self->synth, file_path);
+    ///
+    const sfz::InstrumentFormatRegistry& formatRegistry = sfz::InstrumentFormatRegistry::getInstance();
+    const sfz::InstrumentFormat* format = formatRegistry.getMatchingFormat(file_path);
+
+    if (!format)
+        status = sfizz_load_file(self->synth, file_path);
+    else {
+        auto importer = format->createImporter();
+        std::string virtual_path = std::string(file_path) + ".sfz";
+        std::string sfz_text = importer->convertToSfz(file_path);
+        status = sfizz_load_string(self->synth, virtual_path.c_str(), sfz_text.c_str());
+    }
+
+    ///
     sfizz_lv2_update_file_info(self, file_path);
     return status;
 }

plugins/vst/SfizzFileScan.cpp

@@ -11,6 +11,9 @@
 #include <absl/strings/ascii.h>
 #include <absl/algorithm/container.h>
 #include <memory>
+#if defined(_WIN32)
+#include <windows.h>
+#endif
 
 // wait at least this much before refreshing the file rescan
 // it permits to not repeat the operation many times if many searches are

plugins/vst/SfizzSettings.cpp

@@ -5,6 +5,7 @@
 // If not, contact the sfizz maintainers at https://github.com/sfztools/sfizz
 
 #include "SfizzSettings.h"
+#include <memory>
 #include <cstdlib>
 
 std::string SfizzSettings::load_or(const char* key, absl::string_view defaultValue)

plugins/vst/SfizzVstProcessor.cpp

@@ -9,6 +9,7 @@
 #include "SfizzVstState.h"
 #include "SfizzVstParameters.h"
 #include "SfizzFileScan.h"
+#include "plugin/ForeignInstrument.h"
 #include "base/source/fstreamer.h"
 #include "pluginterfaces/vst/ivstevents.h"
 #include "pluginterfaces/vst/ivstparameterchanges.h"
@@ -621,8 +622,18 @@ void SfizzVstProcessor::receiveMessage(int delay, const char* path, const char*
 
 void SfizzVstProcessor::loadSfzFileOrDefault(sfz::Sfizz& synth, const std::string& filePath)
 {
-    if (!filePath.empty())
-        synth.loadSfzFile(filePath);
+    if (!filePath.empty()) {
+        const sfz::InstrumentFormatRegistry& formatRegistry = sfz::InstrumentFormatRegistry::getInstance();
+        const sfz::InstrumentFormat* format = formatRegistry.getMatchingFormat(filePath);
+        if (!format)
+            synth.loadSfzFile(filePath);
+        else {
+            auto importer = format->createImporter();
+            std::string virtualPath = filePath + ".sfz";
+            std::string sfzText = importer->convertToSfz(filePath);
+            synth.loadSfzString(virtualPath, sfzText);
+        }
+    }
     else
         synth.loadSfzString("default.sfz", defaultSfzText);
 }

plugins/vst/cmake/Vst3.cmake

@@ -36,7 +36,9 @@ function(plugin_add_vst3sdk NAME)
             "${VST3SDK_BASEDIR}/public.sdk/source/common/threadchecker_win32.cpp"
             "${VST3SDK_BASEDIR}/public.sdk/source/vst/vstgui_win32_bundle_support.cpp"
             "${VST3SDK_BASEDIR}/public.sdk/source/main/dllmain.cpp")
-        set_property(TARGET "${NAME}" PROPERTY CXX_STANDARD 14)
+        if(NOT CMAKE_CXX_STANDARD OR CMAKE_CXX_STANDARD LESS 14)
+            set_property(TARGET "${NAME}" PROPERTY CXX_STANDARD 14)
+        endif()
     elseif(APPLE)
         target_sources("${NAME}" PRIVATE
             "${VST3SDK_BASEDIR}/public.sdk/source/main/macmain.cpp")