This segfault in a nasty way ...

src/custom_sfml_audio/open_music.cpp

@@ -1,5 +1,6 @@
 #include "open_music.hpp"
 
+#include <cstddef>
 #include <cstdint>
 #include <fstream>
 #include <algorithm>
@@ -166,7 +167,7 @@ bool OpenMusic::onGetData(SoundStream::Chunk& data) {
     current_offset += data.sampleCount;
 
     // Check if we have stopped obtaining samples or reached either the EOF or the loop end point
-    return (data.sampleCount != 0) && (current_offset < m_file.getSampleCount()) && !(current_offset == loopEnd && m_loopSpan.length != 0);
+    return (data.sampleCount != 0) && (static_cast<std::size_t>(current_offset) < m_file.getSampleCount()) && !(current_offset == loopEnd && m_loopSpan.length != 0);
 }
 
 

src/custom_sfml_audio/precise_sound_stream.hpp

@@ -20,8 +20,10 @@ struct PreciseSoundStream : public OpenSoundStream {
 };
 
 template<class T>
-sf::Uint64 time_to_samples(sf::Time position, T sample_rate, T channel_count) {
-    return ((static_cast<sf::Uint64>(position.asMicroseconds()) * sample_rate * channel_count) + 500000) / 1000000;
+std::int64_t time_to_samples(sf::Time position, T sample_rate, T channel_count) {
+    const auto signed_sample_rate = static_cast<std::int64_t>(sample_rate);
+    const auto signed_channel_count = static_cast<std::int64_t>(channel_count);
+    return ((static_cast<std::int64_t>(position.asMicroseconds()) * signed_sample_rate * signed_channel_count) + 500000) / 1000000;
 };
 
 template<class T>

src/custom_sfml_audio/synced_sound_streams.cpp

@@ -21,18 +21,6 @@
 #include "imgui.h"
 #include "precise_sound_stream.hpp"
 
-#ifdef _MSC_VER
-    #pragma warning(disable: 4355) // 'this' used in base member initializer list
-#endif
-
-#if defined(__APPLE__)
-    #if defined(__clang__)
-        #pragma clang diagnostic ignored "-Wdeprecated-declarations"
-    #elif defined(__GNUC__)
-        #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
-    #endif
-#endif
-
 
 void InternalStream::clear_queue() {
     // Get the number of buffers still in the queue

src/custom_sfml_audio/synced_sound_streams.hpp

@@ -34,7 +34,7 @@ struct Buffers {
     // Format of the internal sound buffers
     sf::Int32 m_format = 0;
     // Number of samples processed since beginning of the stream
-    sf::Uint64 m_samplesProcessed = 0;
+    std::int64_t m_samplesProcessed = 0;
     // If buffer is an "end buffer", holds next seek position, else NoLoop. For play offset calculation.
     std::array<sf::Int64, BufferCount> m_bufferSeeks = {0, 0, 0};
 };

src/editor_state.cpp

@@ -370,11 +370,7 @@ void EditorState::set_playback_position(std::variant<sf::Time, Fraction> newPosi
     previous_playback_position = playback_position;
     playback_position = newPosition;
     const auto now = current_time();
-    if (now >= sf::Time::Zero and now < editable_range.end) {
     audio.setPlayingOffset(now);
-    } else {
-        stop();
-    }
 };
 
 sf::Time EditorState::get_precise_playback_position() {
@@ -1170,6 +1166,7 @@ void EditorState::display_timing_menu() {
             if (chart_state) {
                 chart_state->density_graph.should_recompute = true;
             }
+            reload_editable_range();
         }
     }
     ImGui::End();
@@ -1394,8 +1391,10 @@ void EditorState::reload_editable_range() {
 Interval<sf::Time> EditorState::choose_editable_range() {
     Interval<sf::Time> new_range{sf::Time::Zero, sf::Time::Zero};
     if (music.has_value()) {
-        // If there is music, allow editing up to the end, but no further
+        // If there is music, allow editing from beat zero (which might be at
+        // a negative time in seconds) and up to the end, but no further
         // You've put notes *after* the end of the music ? fuck 'em.
+        new_range += applicable_timing->time_at(0);
         new_range += (**music).getDuration();
         return new_range;
     } else {

src/widgets/linear_view.cpp

@@ -307,8 +307,8 @@ void LinearView::draw_in_waveform_mode(LinearView::DrawArgs& args) {
     const auto frac_chunk_at_cursor = static_cast<std::int64_t>(std::floor(
         static_cast<double>(sample_at_cursor) / waveform.channel_count / chunk_sizes.fractional
     ));
-    const auto first_chunk = frac_chunk_at_cursor - static_cast<std::int64_t>(sizes.cursor_height);
-    const auto end_chunk = first_chunk + static_cast<std::int64_t>(work_rect.GetHeight());
+    const std::int64_t first_chunk = frac_chunk_at_cursor - static_cast<std::int64_t>(sizes.cursor_height);
+    const std::int64_t end_chunk = first_chunk + static_cast<std::int64_t>(work_rect.GetHeight());
     const AffineTransform<float> seconds_to_pixels_proportional {
         0,
         1,