Entry 56

The Audio screen's movies: ccSndMoviePlayer holds the desktop music around the stream

2026-09-23audiotest

Filescrates/piney-game/src/desktop.rs

52 played the desktop Audio screen's movies through the stream player, but no test covered them. The runtime also ignored the bgm the request carries for ccSndMoviePlayer, so the desktop music went on under the movie.

ccSndMoviePlayer(mode, bgm) (0x00180b30)

The slot. It works on one sequence slot: slot 1 when the desktop music is 27 or 7, slot 0 otherwise. The slot must exist (ccSnd +100 counts the loaded sequences).

Mode 0, before the movie, runs only if that slot is playing (sqStatus 1 or 3). It is ccSqStop:

• the sequencer off (command 0x20 + its MIDI port);
• its fade off;
• sqStatus 0.

Either way it sets ccSnd +98 to 1.

Mode 1, after the movie, runs unless that slot is playing, and is ccSqPlay:

• the synthesizer port's volume, the sequence's volume times the BGM volume over 256 (port 0 takes the SE volume instead);
• the sequencer located to tick 0 and played (command 0x110 + port);
• sqStatus 1.

piney-audio's sq_stop and sq_play already do both. So the runtime now sends SqStop(slot) when the movie starts and SqPlay(slot) when it ends.

Checked

audio_movie_plays_as_a_stream (piney-game) runs on a save with movies 1 and 2 unlocked (dtStrList) and clearFlag 1. It goes AUDIO, Movie, Movie 01, then checks:

• the movie starts as a stream, with SqStop(0) and frame rate 2;
• it draws in more than 30 of its first 60 frames;
• cancel and START end it, and SqPlay(0) follows;
• the frame rate is back to 1 and the desktop runs again.

piney-game has 9 tests, all passing; clippy and fmt are clean.