inception

Author: meshula

.gitignore

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+build/

CMakeLists.txt

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+
+cmake_minimum_required (VERSION 3.4)
+project(LabSoundCDemo)
+
+# Don't report that sample file installation up to date
+set(CMAKE_INSTALL_MESSAGE LAZY)
+
+set(LABSOUNDCDEMO_ROOT ${CMAKE_CURRENT_SOURCE_DIR})
+configure_file("${LABSOUNDCDEMO_ROOT}/LabSoundDemo.config.h" "${LABSOUNDCDEMO_ROOT}/LabSoundDemo.h" @ONLY)
+
+find_package(LabSound)
+
+if (APPLE)
+    set(PLATFORM_LIBS
+        "-framework AudioToolbox"
+        "-framework AudioUnit"
+        "-framework Accelerate"
+        "-framework Cocoa"
+        "-framework CoreAudio"
+        "-framework Metal"
+        "-framework MetalKit"
+        "-framework QuartzCore"
+        )
+endif()
+
+add_executable(LabSoundCDemo 
+    labsound-c.h labsound-c.cpp 
+    tinycthread.h tinycthread.c 
+    LabSoundCDemo.c flecs.h flecs.c)
+set_property(TARGET LabSoundCDemo PROPERTY C_STANDARD 11)
+target_link_libraries(LabSoundCDemo Lab::Sound ${PLATFORM_LIBS})
+target_include_directories(LabSoundCDemo PRIVATE "${LABSOUNDDEMO_ROOT}")
+install(TARGETS LabSoundCDemo RUNTIME DESTINATION bin)

LabSoundCDemo.c

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+
+#include "labsound-c.h"
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include "tinycthread.h"
+
+void demo_sleep(LabSoundAPI* ls, float seconds) {
+    while (seconds > 1.f/60.f) {
+        ls_idle(ls);
+        thrd_sleep(&(struct timespec) {
+            .tv_sec = 0,
+            .tv_nsec = 1000000000 / 60 }, NULL);
+
+        seconds -= 1.f / 60.f;
+    }
+    if (seconds > 0.f) {
+        thrd_sleep(&(struct timespec) {
+            .tv_sec = 0,
+                .tv_nsec = (long)(1000000000.f * seconds)
+        }, NULL);
+    }
+    ls_idle(ls);
+}
+
+
+#define MAKE_SLICE(STR) \
+    static const char* STR##_slicestr = #STR;\
+    ls_StringSlice STR##_s = { STR##_slicestr, STR##_slicestr + sizeof(#STR) - 1 };
+
+int main(int argc, char** argcv)
+{
+    LabSoundAPI* ls = ls_create_api_1_0(ls_default_alloc);
+    const ls_NameArray* node_names = ls->node_names(ls);
+    if (!node_names)
+        return 1;
+
+    MAKE_SLICE(amplitude);
+    MAKE_SLICE(frequency);
+    MAKE_SLICE(detune);
+    MAKE_SLICE(Oscillator);
+
+    MAKE_SLICE(osc1);
+    MAKE_SLICE(osc2);
+    MAKE_SLICE(osc3);
+
+    //-------------------------------------------------------------------------
+    printf("test: list the registered nodes\n");
+
+    for (int i = 0; i < node_names->count; ++i) {
+        ls_StringSlice* s = &node_names->names[i];
+        printf("%.*s\n", (int) (s->end - s->start), s->start);
+    }
+
+    //-------------------------------------------------------------------------
+    printf("test: playing a 440 hz tone\n");
+
+    ls_Node osc = ls->node_create(ls, osc1_s, Oscillator_s);
+    ls_Node dest = ls->device_node(ls);
+
+    ls_Pin oscOut = ls->node_indexed_output(ls, osc, 0);
+    ls_Pin destIn = ls->node_indexed_input(ls, dest, 0);
+    ls_Connection connection1 = ls->connect_output_to_input(ls, destIn, oscOut);
+
+    ls->node_start(ls, osc, (ls_Seconds) { 0.f });
+
+    demo_sleep(ls, 0.5);
+    //-------------------------------------------------------------------------
+    printf("test: disconnect the oscillator (silence)\n");
+
+    ls->disconnect(ls, connection1);
+
+    demo_sleep(ls, 0.5f);
+    //-------------------------------------------------------------------------
+    printf("test: reconnect the oscillator, play at 220Hz\n");
+
+    ls_Pin frequency_osc1 = ls->node_parameter(ls, osc, frequency_s);
+    ls->set_float(ls, frequency_osc1, 220.f);
+    connection1 = ls->connect_output_to_input(ls, destIn, oscOut);
+
+    demo_sleep(ls, 0.5);
+    //-------------------------------------------------------------------------
+    printf("test: delete the oscillator while it's running (silence)\n");
+
+    ls->node_delete(ls, osc);
+
+    demo_sleep(ls, 0.5);
+    //-------------------------------------------------------------------------
+    printf("test: create and play an oscillator at 880\n");
+
+    osc = ls->node_create(ls, osc2_s, Oscillator_s);
+    frequency_osc1 = ls->node_parameter(ls, osc, frequency_s);
+    ls->set_float(ls, frequency_osc1, 880.f);
+    oscOut = ls->node_indexed_output(ls, osc, 0);
+    connection1 = ls->connect_output_to_input(ls, destIn, oscOut);
+    ls->node_start(ls, osc, (ls_Seconds) { 0.f });
+
+    demo_sleep(ls, 1);
+    //-------------------------------------------------------------------------
+    printf("test: modulate the oscillator at 440\n");
+
+    ls_Node osc2 = ls->node_create(ls, osc3_s, Oscillator_s);
+    ls_Pin frequency_osc2 = ls->node_parameter(ls, osc2, frequency_s);
+    ls->set_float(ls, frequency_osc2, 4.f);
+    ls_Pin amplitude_osc2 = ls->node_parameter(ls, osc2, amplitude_s);
+    ls->set_float(ls, amplitude_osc2, 40.f);
+    ls->set_float(ls, frequency_osc1, 440.f);
+
+    ls_Pin detune_osc1 = ls->node_parameter(ls, osc, detune_s);
+    ls_Pin osc2Out = ls->node_indexed_output(ls, osc2, 0);
+    ls_Connection connection2 = ls->connect_output_to_input(ls, detune_osc1, osc2Out);
+    ls->node_start(ls, osc2, (ls_Seconds) { 0.f });
+
+    demo_sleep(ls, 1000);
+    //-------------------------------------------------------------------------
+    printf("test: all complete\n");
+    return 0;
+}

LabSoundDemo.config.h

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+#ifndef LABSOUNDDEMOCONFIG_H
+#define LABSOUNDDEMOCONFIG_H
+
+const char* asset_base = "@CMAKE_INSTALL_PREFIX@/share/LabSound/";
+
+#endif

LabSoundDemo.h

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+#ifndef LABSOUNDDEMOCONFIG_H
+#define LABSOUNDDEMOCONFIG_H
+
+const char* asset_base = "C:/Projects/LabSound/install-ls2/share/LabSound/";
+
+#endif

README.md

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+Experimental C binding for LabSound.
+
+copyright (c) 2022 Nick Porcino
+MIT License
+

flecs-LICENSE

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+MIT License
+
+Copyright (c) 2019 Sander Mertens
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.