Linux somewhat functional

src/CubicSDRDefs.h

@@ -13,10 +13,17 @@ const char filePathSeparator =
 #ifdef __APPLE__
 #define BUF_SIZE (16384*2)
 #define DEFAULT_SAMPLE_RATE 2000000
-#else
+#endif
+#ifdef __linux__
+#define BUF_SIZE (16384*6)
+#define DEFAULT_SAMPLE_RATE 2000000
+#endif
+
+#ifndef BUF_SIZE
 #define BUF_SIZE (16384*5)
 #define DEFAULT_SAMPLE_RATE 2500000
 #endif
+
 #define DEFAULT_FFT_SIZE 2048
 
 #define DEFAULT_FREQ 100000000

src/audio/AudioThread.cpp

@@ -4,7 +4,7 @@
 #include <algorithm>
 #include "DemodulatorThread.h"
 
-#ifdef __APPLE__
+#ifdef USE_MIXER
 std::map<int, AudioThread *> AudioThread::deviceController;
 std::map<int, std::thread *> AudioThread::deviceThread;
 #endif
@@ -12,18 +12,18 @@ std::map<int, std::thread *> AudioThread::deviceThread;
 AudioThread::AudioThread(AudioThreadInputQueue *inputQueue, DemodulatorThreadCommandQueue* threadQueueNotify) :
         currentInput(NULL), inputQueue(inputQueue), audioQueuePtr(0), underflowCount(0), terminated(false), active(false), outputDevice(-1), gain(
                 1.0), threadQueueNotify(threadQueueNotify) {
-#ifdef __APPLE__
+#ifdef USE_MIXER
     boundThreads = new std::vector<AudioThread *>;
 #endif
 }
 
 AudioThread::~AudioThread() {
-#ifdef __APPLE__
+#ifdef USE_MIXER
     delete boundThreads.load();
 #endif
 }
 
-#ifdef __APPLE__
+#ifdef USE_MIXER
 void AudioThread::bindThread(AudioThread *other) {
     if (std::find(boundThreads.load()->begin(), boundThreads.load()->end(), other) == boundThreads.load()->end()) {
         boundThreads.load()->push_back(other);
@@ -306,7 +306,7 @@ void AudioThread::setupDevice(int deviceId) {
 
     try {
 
-#ifdef __APPLE__
+#ifdef USE_MIXER
         if (deviceController.find(outputDevice.load()) != deviceController.end()) {
             deviceController[outputDevice.load()]->removeThread(this);
         }
@@ -388,12 +388,12 @@ void AudioThread::threadMain() {
         }
     }
 
-#if !__APPLE__
+#if !USE_MIXER
     AudioThreadInput dummy;
     inputQueue->push(&dummy);
 #endif
 
-#ifdef __APPLE__
+#ifdef USE_MIXER
     if (deviceController[parameters.deviceId] != this) {
         deviceController[parameters.deviceId]->removeThread(this);
     } else {
@@ -440,7 +440,7 @@ bool AudioThread::isActive() {
 }
 
 void AudioThread::setActive(bool state) {
-#ifdef __APPLE__
+#ifdef USE_MIXER
     AudioThreadInput *dummy;
     if (state && !active) {
         while (!inputQueue->empty()) {  // flush queue

src/audio/AudioThread.h

@@ -18,6 +18,14 @@
 #include "RtAudio.h"
 #include "DemodDefs.h"
 
+#ifdef __APPLE__
+#define USE_MIXER 1
+#endif
+
+#ifdef __linux__
+#define USE_MIXER 1
+#endif
+
 class AudioThreadInput: public ReferenceCounter {
 public:
     long long frequency;
@@ -90,7 +98,7 @@ private:
     AudioThreadCommandQueue cmdQueue;
     DemodulatorThreadCommandQueue* threadQueueNotify;
 
-#ifdef __APPLE__
+#ifdef USE_MIXER
 public:
     void bindThread(AudioThread *other);
     void removeThread(AudioThread *other);

src/visual/PrimaryGLContext.cpp

@@ -54,11 +54,13 @@ void PrimaryGLContext::CheckGLError() {
 PrimaryGLContext::PrimaryGLContext(wxGLCanvas *canvas, wxGLContext *sharedContext) :
         wxGLContext(canvas, sharedContext) {
     SetCurrent(*canvas);
+#ifndef __linux__
     // Pre-load fonts
     for (int i = 0; i < GLFONT_MAX; i++) {
         getFont((GLFontSize) i);
     }
     CheckGLError();
+#endif
 }
 
 GLFont &PrimaryGLContext::getFont(GLFontSize esize) {

src/visual/WaterfallContext.cpp

@@ -20,23 +20,6 @@ void WaterfallContext::Setup(int fft_size_in, int num_waterfall_lines_in) {
 
     waterfall_tex = new unsigned char[fft_size * waterfall_lines];
     memset(waterfall_tex, 0, fft_size * waterfall_lines);
-
-    glDisable(GL_CULL_FACE);
-    glDisable(GL_DEPTH_TEST);
-
-    glMatrixMode(GL_PROJECTION);
-    glLoadIdentity();
-
-    glGenTextures(1, &waterfall);
-
-    glEnable(GL_TEXTURE_2D);
-    glBindTexture(GL_TEXTURE_2D, waterfall);
-    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 }
 
 void WaterfallContext::refreshTheme() {
@@ -51,6 +34,19 @@ void WaterfallContext::refreshTheme() {
 
 void WaterfallContext::Draw(std::vector<float> &points) {
 
+	if (!waterfall) {
+	    glGenTextures(1, &waterfall);
+
+	    glEnable(GL_TEXTURE_2D);
+	    glBindTexture(GL_TEXTURE_2D, waterfall);
+	    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+
+	    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
+	    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
+	    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+	    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+	}
+
     if (activeTheme != ThemeMgr::mgr.currentTheme) {
         refreshTheme();
         activeTheme = ThemeMgr::mgr.currentTheme;