Added the shared library bindings

CMakeLists.txt

@@ -10,6 +10,9 @@ endif()
 set(CMAKE_POLICY_DEFAULT_CMP0069 NEW) # To override the policy in abseil and benchmark
 set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
 
+# Enable PIC
+# set(POSITION_INDEPENDENT_CODE ON)
+
 if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND NOT ANDROID)
     set(USE_LIBCPP ON CACHE BOOL "Use libc++ with clang")
     add_compile_options(-stdlib=libc++)
@@ -18,7 +21,8 @@ if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND NOT ANDROID)
     add_link_options(-lc++abi)   # New command on CMake master, not in 3.12 release
 endif()
 
-if (UNIX) 
+if (UNIX)
+    add_compile_options(-fPIC)
     add_compile_options(-Wall)
     add_compile_options(-Wextra)
     add_compile_options(-ffast-math)

sfizz/CMakeLists.txt

@@ -59,7 +59,6 @@ target_sources(sfizz_parser PRIVATE Parser.cpp Opcode.cpp)
 target_include_directories(sfizz_parser PUBLIC .)
 target_link_libraries(sfizz_parser PRIVATE absl::strings)
 
-
 add_library(sfizz STATIC ${SFIZZ_SOURCES})
 target_link_libraries(sfizz PRIVATE sfizz_parser)
 target_include_directories(sfizz PUBLIC .)
@@ -74,3 +73,9 @@ target_link_libraries(sfizz PRIVATE sndfile absl::flat_hash_map)
 
 add_library(sfizz::parser ALIAS sfizz_parser)
 add_library(sfizz::sfizz ALIAS sfizz)
+
+add_library(sfizz_shared SHARED)
+set_target_properties(sfizz_shared PROPERTIES OUTPUT_NAME sfizz)
+# set_target_properties(sfizz_shared PROPERTIES POSITION_INDEPENDENT_CODE ON)
+target_sources(sfizz_shared PRIVATE sfizz.cpp)
+target_link_libraries(sfizz_shared sfizz::sfizz)

sfizz/sfizz.cpp

@@ -0,0 +1,136 @@
+// Copyright (c) 2019, Paul Ferrand
+// All rights reserved.
+
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+
+// 1. Redistributions of source code must retain the above copyright notice, this
+//    list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright notice,
+//    this list of conditions and the following disclaimer in the documentation
+//    and/or other materials provided with the distribution.
+
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "Synth.h"
+#include "sfizz.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+sfizz_synth_t* sfizz_create_synth()
+{
+    return reinterpret_cast<sfizz_synth_t*>(new sfz::Synth());
+}
+
+bool sfizz_load_file(sfizz_synth_t* synth, char* path)
+{
+    auto self = reinterpret_cast<sfz::Synth*>(synth);
+    return self->loadSfzFile(path);
+}
+
+void sfizz_free(sfizz_synth_t* synth)
+{
+    delete reinterpret_cast<sfz::Synth*>(synth);
+}
+
+int sfizz_get_num_regions(sfizz_synth_t* synth)
+{
+    auto self = reinterpret_cast<sfz::Synth*>(synth);
+    return self->getNumRegions();
+}
+int sfizz_get_num_groups(sfizz_synth_t* synth)
+{
+    auto self = reinterpret_cast<sfz::Synth*>(synth);
+    return self->getNumGroups();
+}
+int sfizz_get_num_masters(sfizz_synth_t* synth)
+{
+    auto self = reinterpret_cast<sfz::Synth*>(synth);
+    return self->getNumMasters();
+}
+int sfizz_get_num_curves(sfizz_synth_t* synth)
+{
+    auto self = reinterpret_cast<sfz::Synth*>(synth);
+    return self->getNumCurves();
+}
+int sfizz_get_num_preloaded_samples(sfizz_synth_t* synth)
+{
+    auto self = reinterpret_cast<sfz::Synth*>(synth);
+    return self->getNumPreloadedSamples();
+}
+int sfizz_get_num_active_voices(sfizz_synth_t* synth)
+{
+    auto self = reinterpret_cast<sfz::Synth*>(synth);
+    return self->getNumActiveVoices();
+}
+
+void sfizz_set_samples_per_block(sfizz_synth_t* synth, int samples_per_block)
+{
+    auto self = reinterpret_cast<sfz::Synth*>(synth);
+    self->setSamplesPerBlock(samples_per_block);
+}
+void sfizz_set_sample_rate(sfizz_synth_t* synth, float sample_rate)
+{
+    auto self = reinterpret_cast<sfz::Synth*>(synth);
+    self->setSampleRate(sample_rate);
+}
+
+void sfizz_send_note_on(sfizz_synth_t* synth, int delay, int channel, int note_number, char velocity)
+{
+    auto self = reinterpret_cast<sfz::Synth*>(synth);
+    self->noteOn(delay, channel, note_number, velocity);
+}
+void sfizz_send_note_off(sfizz_synth_t* synth, int delay, int channel, int note_number, char velocity)
+{
+    auto self = reinterpret_cast<sfz::Synth*>(synth);
+    self->noteOff(delay, channel, note_number, velocity);
+}
+void sfizz_send_cc(sfizz_synth_t* synth, int delay, int channel, int cc_number, char cc_value)
+{
+    auto self = reinterpret_cast<sfz::Synth*>(synth);
+    self->cc(delay, channel, cc_number, cc_value);
+}
+void sfizz_send_pitch_wheel(sfizz_synth_t* synth, int delay, int channel, int pitch)
+{
+    auto self = reinterpret_cast<sfz::Synth*>(synth);
+    self->pitchWheel(delay, channel, pitch);
+}
+void sfizz_send_aftertouch(sfizz_synth_t* synth, int delay, int channel, char aftertouch)
+{
+    auto self = reinterpret_cast<sfz::Synth*>(synth);
+    self->aftertouch(delay, channel, aftertouch);
+}
+void sfizz_send_tempo(sfizz_synth_t* synth, int delay, float seconds_per_quarter)
+{
+    auto self = reinterpret_cast<sfz::Synth*>(synth);
+    self->tempo(delay, seconds_per_quarter);
+}
+
+void sfizz_render_block(sfizz_synth_t* synth, float** channels, int num_channels, int num_frames)
+{
+    auto self = reinterpret_cast<sfz::Synth*>(synth);
+    // Only stereo output is supported for now
+    ASSERT(num_channels == 2);
+    self->renderBlock({{channels[0], channels[1]}, static_cast<size_t>(num_frames)});
+}
+
+void sfizz_force_garbage_collection(sfizz_synth_t* synth)
+{
+    auto self = reinterpret_cast<sfz::Synth*>(synth);
+    self->garbageCollect();
+}
+
+#ifdef __cplusplus
+}
+#endif

sfizz/sfizz.h

@@ -0,0 +1,60 @@
+// Copyright (c) 2019, Paul Ferrand
+// All rights reserved.
+
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+
+// 1. Redistributions of source code must retain the above copyright notice, this
+//    list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright notice,
+//    this list of conditions and the following disclaimer in the documentation
+//    and/or other materials provided with the distribution.
+
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct sfizz_synth_t sfizz_synth_t;
+
+sfizz_synth_t* sfizz_create_synth();
+void sfizz_free(sfizz_synth_t* synth);
+
+bool sfizz_load_file(sfizz_synth_t* synth, char* path);
+
+int sfizz_get_num_regions(sfizz_synth_t* synth);
+int sfizz_get_num_groups(sfizz_synth_t* synth);
+int sfizz_get_num_masters(sfizz_synth_t* synth);
+int sfizz_get_num_curves(sfizz_synth_t* synth);
+int sfizz_get_num_preloaded_samples(sfizz_synth_t* synth);
+int sfizz_get_num_active_voices(sfizz_synth_t* synth);
+
+void sfizz_set_samples_per_block(sfizz_synth_t* synth, int samples_per_block);
+void sfizz_set_sample_rate(sfizz_synth_t* synth, float sample_rate);
+
+void sfizz_send_note_on(sfizz_synth_t* synth, int delay, int channel, int note_number, char velocity);
+void sfizz_send_note_off(sfizz_synth_t* synth, int delay, int channel, int note_number, char velocity);
+void sfizz_send_cc(sfizz_synth_t* synth, int delay, int channel, int cc_number, char cc_value);
+void sfizz_send_pitch_wheel(sfizz_synth_t* synth, int delay, int channel, int pitch);
+void sfizz_send_aftertouch(sfizz_synth_t* synth, int delay, int channel, char aftertouch);
+void sfizz_send_tempo(sfizz_synth_t* synth, int delay, float seconds_per_quarter);
+
+void sfizz_render_block(sfizz_synth_t* synth, float** channels, int num_channels, int num_frames);
+
+void sfizz_force_garbage_collection(sfizz_synth_t* synth);
+
+#ifdef __cplusplus
+}
+#endif