mirror of https://github.com/bjornbytes/lovr.git
Introduce -DUSE_OPENAL=0 CMake option which prevents inclusion of OpenAL
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mcc
parent
1f00948da0
commit
883883f0fa
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@ -164,28 +164,37 @@ else()
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endif()
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# OpenAL
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set(USE_OPENAL ON CACHE BOOL "If set to OFF, OpenAL is excluded and the behavior of lovr.audio is undefined")
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set(ALSOFT_UTILS OFF CACHE BOOL "")
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set(ALSOFT_EXAMPLES OFF CACHE BOOL "")
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set(ALSOFT_TESTS OFF CACHE BOOL "")
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if(EMSCRIPTEN)
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include_directories(deps/openal-soft/include)
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elseif(WIN32)
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add_subdirectory(deps/openal-soft openal)
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include_directories(deps/openal-soft/include)
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set_target_properties(OpenAL PROPERTIES COMPILE_FLAGS "/wd4005 /wd4098")
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set(LOVR_OPENAL OpenAL)
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else()
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pkg_search_module(OPENAL openal-soft)
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if (NOT OPENAL_FOUND)
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pkg_search_module(OPENAL openal)
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if(USE_OPENAL)
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add_definitions(-DUSE_OPENAL)
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set(LOVR_AUDIO_SRC src/audio/audio.c src/audio/source.c src/audio/microphone.c)
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if(EMSCRIPTEN)
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include_directories(deps/openal-soft/include)
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elseif(WIN32)
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add_subdirectory(deps/openal-soft openal)
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include_directories(deps/openal-soft/include)
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set_target_properties(OpenAL PROPERTIES COMPILE_FLAGS "/wd4005 /wd4098")
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set(LOVR_OPENAL OpenAL)
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else()
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pkg_search_module(OPENAL openal-soft)
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if (NOT OPENAL_FOUND)
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message(FATAL_ERROR "OpenAL not found.")
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pkg_search_module(OPENAL openal)
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if (NOT OPENAL_FOUND)
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message(FATAL_ERROR "OpenAL not found.")
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endif()
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endif()
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include_directories(${OPENAL_INCLUDE_DIRS})
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string(REPLACE ";" " " OPENAL_LDFLAGS_STR "${OPENAL_LDFLAGS}")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${OPENAL_LDFLAGS_STR}")
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set(LOVR_OPENAL ${OPENAL_LIBRARIES})
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endif()
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include_directories(${OPENAL_INCLUDE_DIRS})
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string(REPLACE ";" " " OPENAL_LDFLAGS_STR "${OPENAL_LDFLAGS}")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${OPENAL_LDFLAGS_STR}")
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set(LOVR_OPENAL ${OPENAL_LIBRARIES})
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else()
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set(LOVR_AUDIO_SRC src/audio/null.c)
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endif()
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# OpenGL
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@ -258,9 +267,6 @@ set(LOVR_SRC
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src/api/types/transform.c
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src/api/types/vertexData.c
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src/api/types/world.c
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src/audio/audio.c
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src/audio/microphone.c
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src/audio/source.c
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src/data/audioStream.c
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src/data/blob.c
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src/data/modelData.c
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@ -304,6 +310,7 @@ set(LOVR_SRC
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src/resources/shaders.c
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src/timer/timer.c
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src/util.c
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${LOVR_AUDIO_SRC}
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)
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# Conditional sources
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@ -1,15 +1,18 @@
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#include "audio/source.h"
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#include "audio/microphone.h"
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#include "lib/vec/vec.h"
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#ifdef USE_OPENAL
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#include <AL/al.h>
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#include <AL/alc.h>
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#include <AL/alext.h>
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#endif
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#include <stdbool.h>
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#pragma once
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#define MAX_MICROPHONES 8
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#ifdef USE_OPENAL
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typedef struct {
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bool initialized;
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ALCdevice* device;
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@ -20,6 +23,10 @@ typedef struct {
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float position[3];
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float velocity[3];
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} AudioState;
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#else
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typedef unsigned int AudioState;
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typedef unsigned int ALenum;
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#endif
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ALenum lovrAudioConvertFormat(int bitDepth, int channelCount);
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@ -1,11 +1,14 @@
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#include "util.h"
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#include "data/soundData.h"
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#if USE_OPENAL
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#include <AL/al.h>
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#include <AL/alc.h>
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#endif
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#include <stdbool.h>
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#pragma once
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#ifdef USE_OPENAL
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typedef struct {
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Ref ref;
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ALCdevice* device;
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@ -15,6 +18,9 @@ typedef struct {
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int bitDepth;
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int channelCount;
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} Microphone;
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#else
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typedef unsigned int Microphone;
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#endif
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Microphone* lovrMicrophoneCreate(const char* name, int samples, int sampleRate, int bitDepth, int channelCount);
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void lovrMicrophoneDestroy(void* ref);
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@ -0,0 +1,89 @@
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// "Null" implementation of all audio code for no-OpenAL mode
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// Currently, some of these functions may lead to crashes (IE by returning null values)
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// audio.c
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#include "audio/audio.h"
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ALenum lovrAudioConvertFormat(int bitDepth, int channelCount) { return 0; }
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void lovrAudioInit() {}
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void lovrAudioDestroy() {}
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void lovrAudioUpdate() {}
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void lovrAudioAdd(Source* source) {}
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void lovrAudioGetDopplerEffect(float* factor, float* speedOfSound) {}
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void lovrAudioGetMicrophoneNames(const char* names[MAX_MICROPHONES], uint8_t* count) {}
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void lovrAudioGetOrientation(float* angle, float* ax, float* ay, float* az) {}
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void lovrAudioGetPosition(float* x, float* y, float* z) {}
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void lovrAudioGetVelocity(float* x, float* y, float* z) {}
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float lovrAudioGetVolume() { return 0; }
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bool lovrAudioHas(Source* source) { return false; }
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bool lovrAudioIsSpatialized() { return false; }
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void lovrAudioPause() {}
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void lovrAudioResume() {}
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void lovrAudioRewind() {}
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void lovrAudioSetDopplerEffect(float factor, float speedOfSound) {}
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void lovrAudioSetOrientation(float angle, float ax, float ay, float az) {}
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void lovrAudioSetPosition(float x, float y, float z) {}
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void lovrAudioSetVelocity(float x, float y, float z) {}
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void lovrAudioSetVolume(float volume) {}
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void lovrAudioStop() {}
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// microphone.c
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#include "audio/microphone.h"
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Microphone* lovrMicrophoneCreate(const char* name, int samples, int sampleRate, int bitDepth, int channelCount) { return 0; }
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void lovrMicrophoneDestroy(void* ref) {}
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int lovrMicrophoneGetBitDepth(Microphone* microphone) { return 0; }
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int lovrMicrophoneGetChannelCount(Microphone* microphone) { return 0; }
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SoundData* lovrMicrophoneGetData(Microphone* microphone) { return NULL; }
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const char* lovrMicrophoneGetName(Microphone* microphone) { return NULL; }
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int lovrMicrophoneGetSampleCount(Microphone* microphone) { return 0; }
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int lovrMicrophoneGetSampleRate(Microphone* microphone) { return 0; }
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bool lovrMicrophoneIsRecording(Microphone* microphone) { return false; }
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void lovrMicrophoneStartRecording(Microphone* microphone) {}
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void lovrMicrophoneStopRecording(Microphone* microphone) {}
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// source.c
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#include "audio/source.h"
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Source* lovrSourceCreateStatic(SoundData* soundData) { return NULL; }
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Source* lovrSourceCreateStream(AudioStream* stream) { return NULL; }
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void lovrSourceDestroy(void* ref) {}
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SourceType lovrSourceGetType(Source* source) { return SOURCE_STATIC; }
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int lovrSourceGetBitDepth(Source* source) { return 0; }
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int lovrSourceGetChannelCount(Source* source) { return 0; }
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void lovrSourceGetCone(Source* source, float* innerAngle, float* outerAngle, float* outerGain) {}
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void lovrSourceGetDirection(Source* source, float* x, float* y, float* z) {}
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int lovrSourceGetDuration(Source* source) { return 0; }
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void lovrSourceGetFalloff(Source* source, float* reference, float* max, float* rolloff) {}
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float lovrSourceGetPitch(Source* source) { return 0; }
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void lovrSourceGetPosition(Source* source, float* x, float* y, float* z) {}
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void lovrSourceGetVelocity(Source* source, float* x, float* y, float* z) {}
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int lovrSourceGetSampleRate(Source* source) { return 0; }
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float lovrSourceGetVolume(Source* source) { return 0; }
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void lovrSourceGetVolumeLimits(Source* source, float* min, float* max) {}
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bool lovrSourceIsLooping(Source* source) { return false; }
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bool lovrSourceIsPaused(Source* source) { return false; }
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bool lovrSourceIsPlaying(Source* source) { return false; }
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bool lovrSourceIsRelative(Source* source) { return false; }
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bool lovrSourceIsStopped(Source* source) { return false; }
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void lovrSourcePause(Source* source) {}
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void lovrSourcePlay(Source* source) {}
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void lovrSourceResume(Source* source) {}
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void lovrSourceRewind(Source* source) {}
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void lovrSourceSeek(Source* source, int sample) {}
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void lovrSourceSetCone(Source* source, float inner, float outer, float outerGain) {}
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void lovrSourceSetDirection(Source* source, float x, float y, float z) {}
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void lovrSourceSetFalloff(Source* source, float reference, float max, float rolloff) {}
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void lovrSourceSetLooping(Source* source, bool isLooping) {}
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void lovrSourceSetPitch(Source* source, float pitch) {}
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void lovrSourceSetPosition(Source* source, float x, float y, float z) {}
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void lovrSourceSetRelative(Source* source, bool isRelative) {}
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void lovrSourceSetVelocity(Source* source, float x, float y, float z) {}
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void lovrSourceSetVolume(Source* source, float volume) {}
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void lovrSourceSetVolumeLimits(Source* source, float min, float max) {}
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void lovrSourceStop(Source* source) {}
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void lovrSourceStream(Source* source, ALuint* buffers, int count) {}
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int lovrSourceTell(Source* source) { return 0; }
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@ -1,8 +1,10 @@
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#include "data/audioStream.h"
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#include "data/soundData.h"
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#include "util.h"
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#ifdef USE_OPENAL
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#include <AL/al.h>
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#include <AL/alc.h>
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#endif
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#include <stdbool.h>
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#pragma once
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@ -19,6 +21,7 @@ typedef enum {
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UNIT_SAMPLES
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} TimeUnit;
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#ifdef USE_OPENAL
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typedef struct {
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Ref ref;
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SourceType type;
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@ -28,6 +31,11 @@ typedef struct {
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ALuint buffers[SOURCE_BUFFERS];
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bool isLooping;
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} Source;
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#else
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typedef struct { Ref ref; } Source;
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typedef unsigned int ALuint;
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#define ALC_HRTF_SOFT 0
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#endif
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Source* lovrSourceCreateStatic(SoundData* soundData);
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Source* lovrSourceCreateStream(AudioStream* stream);
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