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projectM_SDL_main.cpp
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projectM_SDL_main.cpp
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/**
* projectM -- Milkdrop-esque visualisation SDK
* Copyright (C)2003-2019 projectM Team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* See 'LICENSE.txt' included within this release
*
* projectM-sdl
* This is an implementation of projectM using libSDL2
*
* main.cpp
* Authors: Created by Mischa Spiegelmock on 6/3/15.
*
*
* experimental Stereoscopic SBS driver functionality
* WASAPI looback implementation
*
*
*/
#if defined _MSC_VER
# include <direct.h>
#endif
#include <fstream>
#include <iostream>
#include <string>
#include "pmSDL.hpp"
#if OGL_DEBUG
void DebugLog(GLenum source,
GLenum type,
GLuint id,
GLenum severity,
GLsizei length,
const GLchar* message,
const void* userParam) {
/*if (type != GL_DEBUG_TYPE_OTHER)*/
{
std::cerr << " -- \n" << "Type: " <<
type << "; Source: " <<
source <<"; ID: " << id << "; Severity: " <<
severity << "\n" << message << "\n";
}
}
#endif
// return path to config file to use
std::string getConfigFilePath(std::string datadir_path) {
char* home = NULL;
std::string projectM_home;
std::string projectM_config = DATADIR_PATH;
projectM_config = datadir_path;
#ifdef _MSC_VER
home=getenv("USERPROFILE");
#else
home=getenv("HOME");
#endif
projectM_home = std::string(home);
projectM_home += "/.projectM";
// Create the ~/.projectM directory. If it already exists, mkdir will do nothing
#if defined _MSC_VER
_mkdir(projectM_home.c_str());
#else
mkdir(projectM_home.c_str(), 0755);
#endif
projectM_home += "/config.inp";
projectM_config += "/config.inp";
std::ifstream f_home(projectM_home);
std::ifstream f_config(projectM_config);
if (f_config.good() && !f_home.good()) {
std::ifstream f_src;
std::ofstream f_dst;
f_src.open(projectM_config, std::ios::in | std::ios::binary);
f_dst.open(projectM_home, std::ios::out | std::ios::binary);
f_dst << f_src.rdbuf();
f_dst.close();
f_src.close();
return std::string(projectM_home);
} else if (f_home.good()) {
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION, "created ~/.projectM/config.inp successfully\n");
return std::string(projectM_home);
} else if (f_config.good()) {
SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION, "Cannot create ~/.projectM/config.inp, using default config file\n");
return std::string(projectM_config);
} else {
SDL_LogWarn(SDL_LOG_CATEGORY_ERROR, "Using implementation defaults, your system is really messed up, I'm surprised we even got this far\n");
return "";
}
}
// ref https://blogs.msdn.microsoft.com/matthew_van_eerde/2008/12/16/sample-wasapi-loopback-capture-record-what-you-hear/
#ifdef WASAPI_LOOPBACK
HRESULT get_default_device(IMMDevice **ppMMDevice) {
HRESULT hr = S_OK;
IMMDeviceEnumerator *pMMDeviceEnumerator;
// activate a device enumerator
hr = CoCreateInstance(
__uuidof(MMDeviceEnumerator), NULL, CLSCTX_ALL,
__uuidof(IMMDeviceEnumerator),
(void**)&pMMDeviceEnumerator
);
if (FAILED(hr)) {
ERR(L"CoCreateInstance(IMMDeviceEnumerator) failed: hr = 0x%08x", hr);
return hr;
}
// get the default render endpoint
hr = pMMDeviceEnumerator->GetDefaultAudioEndpoint(eRender, eConsole, ppMMDevice);
if (FAILED(hr)) {
ERR(L"IMMDeviceEnumerator::GetDefaultAudioEndpoint failed: hr = 0x%08x", hr);
return hr;
}
return S_OK;
}
#endif /** WASAPI_LOOPBACK */
int main(int argc, char *argv[]) {
#ifndef WIN32
srand((int)(time(NULL)));
#endif
#ifdef WASAPI_LOOPBACK
HRESULT hr;
hr = CoInitialize(NULL);
if (FAILED(hr)) {
ERR(L"CoInitialize failed: hr = 0x%08x", hr);
}
IMMDevice *pMMDevice(NULL);
// open default device if not specified
if (NULL == pMMDevice) {
hr = get_default_device(&pMMDevice);
if (FAILED(hr)) {
return hr;
}
}
bool bInt16 = false;
UINT32 foo = 0;
PUINT32 pnFrames = &foo;
// activate an IAudioClient
IAudioClient *pAudioClient;
hr = pMMDevice->Activate(
__uuidof(IAudioClient),
CLSCTX_ALL, NULL,
(void**)&pAudioClient
);
if (FAILED(hr)) {
ERR(L"IMMDevice::Activate(IAudioClient) failed: hr = 0x%08x", hr);
return hr;
}
// get the default device periodicity
REFERENCE_TIME hnsDefaultDevicePeriod;
hr = pAudioClient->GetDevicePeriod(&hnsDefaultDevicePeriod, NULL);
if (FAILED(hr)) {
ERR(L"IAudioClient::GetDevicePeriod failed: hr = 0x%08x", hr);
return hr;
}
// get the default device format
WAVEFORMATEX *pwfx;
hr = pAudioClient->GetMixFormat(&pwfx);
if (FAILED(hr)) {
ERR(L"IAudioClient::GetMixFormat failed: hr = 0x%08x", hr);
return hr;
}
if (bInt16) {
// coerce int-16 wave format
// can do this in-place since we're not changing the size of the format
// also, the engine will auto-convert from float to int for us
switch (pwfx->wFormatTag) {
case WAVE_FORMAT_IEEE_FLOAT:
pwfx->wFormatTag = WAVE_FORMAT_PCM;
pwfx->wBitsPerSample = 16;
pwfx->nBlockAlign = pwfx->nChannels * pwfx->wBitsPerSample / 8;
pwfx->nAvgBytesPerSec = pwfx->nBlockAlign * pwfx->nSamplesPerSec;
break;
case WAVE_FORMAT_EXTENSIBLE:
{
// naked scope for case-local variable
PWAVEFORMATEXTENSIBLE pEx = reinterpret_cast<PWAVEFORMATEXTENSIBLE>(pwfx);
if (IsEqualGUID(KSDATAFORMAT_SUBTYPE_IEEE_FLOAT, pEx->SubFormat)) {
pEx->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
pEx->Samples.wValidBitsPerSample = 16;
pwfx->wBitsPerSample = 16;
pwfx->nBlockAlign = pwfx->nChannels * pwfx->wBitsPerSample / 8;
pwfx->nAvgBytesPerSec = pwfx->nBlockAlign * pwfx->nSamplesPerSec;
}
else {
ERR(L"%s", L"Don't know how to coerce mix format to int-16");
return E_UNEXPECTED;
}
}
break;
default:
ERR(L"Don't know how to coerce WAVEFORMATEX with wFormatTag = 0x%08x to int-16", pwfx->wFormatTag);
return E_UNEXPECTED;
}
}
UINT32 nBlockAlign = pwfx->nBlockAlign;
*pnFrames = 0;
// call IAudioClient::Initialize
// note that AUDCLNT_STREAMFLAGS_LOOPBACK and AUDCLNT_STREAMFLAGS_EVENTCALLBACK
// do not work together...
// the "data ready" event never gets set
// so we're going to do a timer-driven loop
hr = pAudioClient->Initialize(
AUDCLNT_SHAREMODE_SHARED,
AUDCLNT_STREAMFLAGS_LOOPBACK,
0, 0, pwfx, 0
);
if (FAILED(hr)) {
ERR(L"pAudioClient->Initialize error");
return hr;
}
// activate an IAudioCaptureClient
IAudioCaptureClient *pAudioCaptureClient;
hr = pAudioClient->GetService(
__uuidof(IAudioCaptureClient),
(void**)&pAudioCaptureClient
);
if (FAILED(hr)) {
ERR(L"pAudioClient->GetService error");
return hr;
}
// call IAudioClient::Start
hr = pAudioClient->Start();
if (FAILED(hr)) {
ERR(L"pAudioClient->Start error");
return hr;
}
bool bDone = false;
bool bFirstPacket = true;
UINT32 nPasses = 0;
#endif /** WASAPI_LOOPBACK */
#if UNLOCK_FPS
setenv("vblank_mode", "0", 1);
#endif
SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO);
if (! SDL_VERSION_ATLEAST(2, 0, 5)) {
SDL_Log("SDL version 2.0.5 or greater is required. You have %i.%i.%i", SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL);
return 1;
}
// default window size to usable bounds (e.g. minus menubar and dock)
SDL_Rect initialWindowBounds;
#if SDL_VERSION_ATLEAST(2, 0, 5)
// new and better
SDL_GetDisplayUsableBounds(0, &initialWindowBounds);
#else
SDL_GetDisplayBounds(0, &initialWindowBounds);
#endif
int width = initialWindowBounds.w;
int height = initialWindowBounds.h;
#ifdef USE_GLES
// use GLES 2.0 (this may need adjusting)
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
#else
// Disabling compatibility profile
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
#endif
SDL_Window *win = SDL_CreateWindow("projectM", 0, 0, width, height, SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
SDL_GL_GetDrawableSize(win,&width,&height);
#if STEREOSCOPIC_SBS
// enable stereo
if (SDL_GL_SetAttribute(SDL_GL_STEREO, 1) == 0)
{
SDL_Log("SDL_GL_STEREO: true");
}
// requires fullscreen mode
SDL_ShowCursor(false);
SDL_SetWindowFullscreen(win, SDL_WINDOW_FULLSCREEN);
#endif
SDL_GLContext glCtx = SDL_GL_CreateContext(win);
SDL_Log("GL_VERSION: %s", glGetString(GL_VERSION));
SDL_Log("GL_SHADING_LANGUAGE_VERSION: %s", glGetString(GL_SHADING_LANGUAGE_VERSION));
SDL_Log("GL_VENDOR: %s", glGetString(GL_VENDOR));
SDL_SetWindowTitle(win, "projectM Visualizer");
SDL_GL_MakeCurrent(win, glCtx); // associate GL context with main window
int avsync = SDL_GL_SetSwapInterval(-1); // try to enable adaptive vsync
if (avsync == -1) { // adaptive vsync not supported
SDL_GL_SetSwapInterval(1); // enable updates synchronized with vertical retrace
}
projectMSDL *app;
std::string base_path = DATADIR_PATH;
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION, "Using data directory: %s\n", base_path.c_str());
// load configuration file
std::string configFilePath = getConfigFilePath(base_path);
if (! configFilePath.empty()) {
// found config file, use it
app = new projectMSDL(configFilePath, 0);
SDL_Log("Using config from %s", configFilePath.c_str());
} else {
base_path = SDL_GetBasePath();
SDL_Log("Config file not found, using built-in settings. Data directory=%s\n", base_path.c_str());
// Get max refresh rate from attached displays to use as built-in max FPS.
int i = 0;
int maxRefreshRate = 0;
SDL_DisplayMode current;
for (i = 0; i < SDL_GetNumVideoDisplays(); ++i)
{
if (SDL_GetCurrentDisplayMode(i, ¤t) == 0)
{
if (current.refresh_rate > maxRefreshRate) maxRefreshRate = current.refresh_rate;
}
}
if (maxRefreshRate <= 60) maxRefreshRate = 60;
float heightWidthRatio = (float)height / (float)width;
projectM::Settings settings;
settings.windowWidth = width;
settings.windowHeight = height;
settings.meshX = 128;
settings.meshY = settings.meshX * heightWidthRatio;
settings.fps = maxRefreshRate;
settings.smoothPresetDuration = 3; // seconds
settings.presetDuration = 22; // seconds
settings.hardcutEnabled = true;
settings.hardcutDuration = 60;
settings.hardcutSensitivity = 1.0;
settings.beatSensitivity = 1.0;
settings.aspectCorrection = 1;
settings.shuffleEnabled = 1;
settings.softCutRatingsEnabled = 1; // ???
// get path to our app, use CWD or resource dir for presets/fonts/etc
settings.presetURL = base_path + "presets";
// settings.presetURL = base_path + "presets/presets_shader_test";
settings.menuFontURL = base_path + "fonts/Vera.ttf";
settings.titleFontURL = base_path + "fonts/Vera.ttf";
// init with settings
app = new projectMSDL(settings, 0);
}
// If our config or hard-coded settings create a resolution smaller than the monitors, then resize the SDL window to match.
if (height > app->getWindowHeight() || width > app->getWindowWidth()) {
SDL_SetWindowSize(win, app->getWindowWidth(),app->getWindowHeight());
SDL_SetWindowPosition(win, (width / 2)-(app->getWindowWidth()/2), (height / 2)-(app->getWindowHeight()/2));
} else if (height < app->getWindowHeight() || width < app->getWindowWidth()) {
// If our config is larger than our monitors resolution then reduce it.
SDL_SetWindowSize(win, width, height);
SDL_SetWindowPosition(win, 0, 0);
}
// Create a help menu specific to SDL
std::string modKey = "CTRL";
#if __APPLE__
modKey = "CMD";
#endif
std::string sdlHelpMenu = "\n"
"F1: This help menu""\n"
"F3: Show preset name""\n"
"F4: Show details and statistics""\n"
"F5: Show FPS""\n"
"L or SPACE: Lock/Unlock Preset""\n"
"R: Random preset""\n"
"N: Next preset""\n"
"P: Previous preset""\n"
"UP: Increase Beat Sensitivity""\n"
"DOWN: Decrease Beat Sensitivity""\n"
#ifdef PROJECTM_TOUCH_ENABLED
"Left Click: Drop Random Waveform on Screen""\n"
"Right Click: Remove Random Waveform""\n" +
modKey + "+Right Click: Remove All Random Waveforms""\n"
#endif
+ modKey + "+I: Audio Input (listen to next device)""\n" +
modKey + "+M: Change Monitor""\n" +
modKey + "+S: Stretch Monitors""\n" +
modKey + "+F: Fullscreen""\n" +
modKey + "+Q: Quit";
app->setHelpText(sdlHelpMenu.c_str());
app->init(win, &glCtx);
#if STEREOSCOPIC_SBS
app->toggleFullScreen();
#endif
#if OGL_DEBUG && !USE_GLES
glEnable(GL_DEBUG_OUTPUT);
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
glDebugMessageCallback(DebugLog, NULL);
#endif
#if !FAKE_AUDIO && !WASAPI_LOOPBACK
// get an audio input device
if (app->openAudioInput())
app->beginAudioCapture();
#endif
#ifdef WASAPI_LOOPBACK
// Default to WASAPI loopback if it was enabled at compilation.
app->wasapi = true;
// Notify that loopback capture was started.
SDL_Log("Opened audio capture loopback.");
#endif
#if TEST_ALL_PRESETS
uint buildErrors = 0;
for(unsigned int i = 0; i < app->getPlaylistSize(); i++) {
std::cout << i << "\t" << app->getPresetName(i) << std::endl;
app->selectPreset(i);
if (app->getErrorLoadingCurrentPreset()) {
buildErrors++;
}
}
if (app->getPlaylistSize()) {
fprintf(stdout, "Preset loading errors: %d/%d [%d%%]\n", buildErrors, app->getPlaylistSize(), (buildErrors*100) / app->getPlaylistSize());
}
delete app;
return PROJECTM_SUCCESS;
#endif
#if UNLOCK_FPS
int32_t frame_count = 0;
struct timespec now;
clock_gettime(CLOCK_MONOTONIC_RAW, &now);
int64_t start = ( ((int64_t)now.tv_sec * 1000L) + (now.tv_nsec / 1000000L) );
#endif
// standard main loop
int fps = app->settings().fps;
printf("fps: %d\n", fps);
if (fps <= 0)
fps = 60;
const Uint32 frame_delay = 1000/fps;
Uint32 last_time = SDL_GetTicks();
while (! app->done) {
app->renderFrame();
#if FAKE_AUDIO
app->fakeAudio = true;
#endif
// fakeAudio can also be enabled dynamically.
if (app->fakeAudio )
{
app->addFakePCM();
}
#ifdef WASAPI_LOOPBACK
if (app->wasapi) {
// drain data while it is available
nPasses++;
UINT32 nNextPacketSize;
for (
hr = pAudioCaptureClient->GetNextPacketSize(&nNextPacketSize);
SUCCEEDED(hr) && nNextPacketSize > 0;
hr = pAudioCaptureClient->GetNextPacketSize(&nNextPacketSize)
) {
// get the captured data
BYTE *pData;
UINT32 nNumFramesToRead;
DWORD dwFlags;
hr = pAudioCaptureClient->GetBuffer(
&pData,
&nNumFramesToRead,
&dwFlags,
NULL,
NULL
);
if (FAILED(hr)) {
return hr;
}
LONG lBytesToWrite = nNumFramesToRead * nBlockAlign;
/** Add the waveform data */
app->pcm()->addPCMfloat((float *)pData, nNumFramesToRead);
*pnFrames += nNumFramesToRead;
hr = pAudioCaptureClient->ReleaseBuffer(nNumFramesToRead);
if (FAILED(hr)) {
return hr;
}
bFirstPacket = false;
}
if (FAILED(hr)) {
return hr;
}
}
#endif /** WASAPI_LOOPBACK */
#if UNLOCK_FPS
frame_count++;
clock_gettime(CLOCK_MONOTONIC_RAW, &now);
if (( ((int64_t)now.tv_sec * 1000L) + (now.tv_nsec / 1000000L) ) - start > 5000) {
SDL_GL_DeleteContext(glCtx);
delete(app);
fprintf(stdout, "Frames[%d]\n", frame_count);
exit(0);
}
#else
app->pollEvent();
Uint32 elapsed = SDL_GetTicks() - last_time;
if (elapsed < frame_delay)
SDL_Delay(frame_delay - elapsed);
last_time = SDL_GetTicks();
#endif
}
SDL_GL_DeleteContext(glCtx);
#if !FAKE_AUDIO
if (!app->wasapi) // not currently using WASAPI, so we need to endAudioCapture.
app->endAudioCapture();
#endif
// Write back config with current app settings (if we loaded from a config file to begin with)
if (!configFilePath.empty()) {
projectM::writeConfig(configFilePath, app->settings());
}
delete app;
return PROJECTM_SUCCESS;
}