Remove sigvis.

This will be replaced with a more complete solution later.

Public issue #105.

.gitmodules

-[submodule "tools/external/dred"]
-	path = tools/external/dred
-	url = https://github.com/dr-soft/dred

tests/ma_resampling.c

-// We're using sigvis for visualizations. This will include miniaudio for us, so no need to include miniaudio in this file.
-#define NO_SIGVIS
 
 #define MA_NO_SSE2
 #define MA_NO_AVX2
 
-#ifdef NO_SIGVIS
-    #define MINIAUDIO_IMPLEMENTATION
-    #include "../miniaudio.h"
-#else
-    #define MINI_SIGVIS_IMPLEMENTATION
-    #include "../tools/mini_sigvis/mini_sigvis.h" // <-- Includes miniaudio.
-#endif
+#define MINIAUDIO_IMPLEMENTATION
+#include "../miniaudio.h"
 
 // There is a usage pattern for resampling that miniaudio does not properly support which is where the client continuously
 // reads samples until ma_src_read() returns 0. The problem with this pattern is that is consumes the samples sitting
@@ -137,66 +130,6 @@ int main(int argc, char** argv)
         return -1;
     }
 
-
-
-#ifndef NO_SIGVIS
-    msigvis_context sigvis;
-    result = msigvis_init(&sigvis);
-    if (result != MA_SUCCESS) {
-        printf("Failed to initialize mini_sigvis context.\n");
-        return -1;
-    }
-
-    msigvis_screen screen;
-    result = msigvis_screen_init(&sigvis, 1280, 720, &screen);
-    if (result != MA_SUCCESS) {
-        printf("Failed to initialize mini_sigvis screen.\n");
-        return -2;
-    }
-    
-    msigvis_screen_show(&screen);
-
-
-    msigvis_channel channelSineWave;
-    result = msigvis_channel_init(&sigvis, ma_format_f32, sampleRateOut, &channelSineWave);
-    if (result != MA_SUCCESS) {
-        printf("Failed to initialize mini_sigvis channel.\n");
-        return -3;
-    }
-
-    float testSamples[40960];
-    float* pFramesF32 = testSamples;
-
-    // To reproduce the case we are needing to test, we need to read from the SRC in a very specific way. We keep looping
-    // until we've read the requested frame count, however we have an inner loop that keeps running until ma_src_read()
-    // returns 0, in which case we need to reload the SRC's input data and keep going.
-    ma_uint32 totalFramesRead = 0;
-    while (totalFramesRead < ma_countof(testSamples)) {
-        ma_uint32 maxFramesToRead = 128;
-        ma_uint32 framesToRead = ma_countof(testSamples);
-        if (framesToRead > maxFramesToRead) {
-            framesToRead = maxFramesToRead;
-        }
-
-        ma_uint32 framesRead = (ma_uint32)ma_src_read_deinterleaved(&src, framesToRead, (void**)&pFramesF32, NULL);
-        if (framesRead == 0) {
-            reload_src_input();
-        }
-
-        totalFramesRead += framesRead;
-        pFramesF32 += framesRead;
-    }
-
-    msigvis_channel_push_samples(&channelSineWave, ma_countof(testSamples), testSamples);
-    msigvis_screen_add_channel(&screen, &channelSineWave);
-
-
-    int exitCode = msigvis_run(&sigvis);
-
-    msigvis_screen_uninit(&screen);
-    msigvis_uninit(&sigvis);
-#else
-
     result = ma_device_start(&device);
     if (result != MA_SUCCESS) {
         return -2;
@@ -205,7 +138,6 @@ int main(int argc, char** argv)
     printf("Press Enter to quit...\n");
     getchar();
     ma_device_uninit(&device);
-#endif
 
     return 0;
 }

dred @ f18b0c5d

-Subproject commit f18b0c5d9245560d529af9ba6fc9691ec7cad34e

tools/mini_sigvis/README.md

-This is a simple library for visualizing signals. This readme will be updated later when the library stabilizes.
\ No newline at end of file