Initial commit: MSXgl 1.4.1 with mazegame project

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-29 22:50:20 +02:00
commit f3340e86c6
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+// ────────────────────────────────────────────────────────────────────────────
+// MSXgl example (multi-song lVGM): embeds two tracks and switches between them
+// with SPACE. Built from two .lvgm files exported by the MSX MML Music Generator.
+// Make the headers with:  node tools/bin2c.mjs a.lvgm music1_lvgm.h g_Music1
+//                         node tools/bin2c.mjs b.lvgm music2_lvgm.h g_Music2
+//
+// Build (from MSXgl/projects/samples/): bash build.sh s_mymusic_multi
+// Run:  openmsx -machine C-BIOS_MSX2+ -ext fmpac -cart out/s_mymusic_multi.rom
+//       (-ext fmpac is needed for any MSX-Music/FM track)
+// ────────────────────────────────────────────────────────────────────────────
+#include "msxgl.h"
+#include "psg.h"
+#include "vgm/lvgm_player.h"
+#if (LVGM_USE_SCC)
+	#include "scc.h"
+#endif
+#if (LVGM_USE_MSXMUSIC)
+	#include "msx-music.h"
+#endif
+#if (LVGM_USE_MSXAUDIO)
+	#include "msx-audio.h"
+#endif
+
+#include "music1_lvgm.h" // g_Music1
+#include "music2_lvgm.h" // g_Music2
+
+#define MSX_GL "\x02\x03\x04\x05"
+#include "font/font_mgl_sample8.h"
+
+const u8* const g_Songs[2] = { g_Music1, g_Music2 };
+const c8* const g_Names[2] = { "1. Title (PSG)   ", "2. Title (FM)    " };
+u8 g_Cur = 0;
+
+//-----------------------------------------------------------------------------
+void PlaySong(u8 idx)
+{
+	g_Cur = idx;
+	LVGM_Stop();
+	LVGM_Play(g_Songs[idx], TRUE);
+
+	Print_SetPosition(0, 5);
+	Print_DrawFormat("Now playing: %s\n", g_Names[idx]);
+	Print_DrawFormat("PSG:%c  MSX-Music:%c        \n",
+		(LVGM_GetDevices() & LVGM_CHIP_PSG) ? '\x0C' : '\x0B',
+		(LVGM_GetDevices() & LVGM_CHIP_OPLL) ? '\x0C' : '\x0B');
+}
+
+//-----------------------------------------------------------------------------
+void main()
+{
+	VDP_SetMode(VDP_MODE_SCREEN1);
+	VDP_SetColor2(COLOR_BLACK, COLOR_WHITE);
+	VDP_ClearVRAM();
+	VDP_EnableVBlank(TRUE);
+
+	#if (LVGM_USE_SCC)
+		SCC_Initialize();
+	#endif
+	#if (LVGM_USE_MSXMUSIC)
+		MSXMusic_Initialize();
+	#endif
+	#if (LVGM_USE_MSXAUDIO)
+		MSXAudio_Initialize();
+	#endif
+
+	Print_SetTextFont(g_Font_MGL_Sample8, 1);
+	Print_DrawText(MSX_GL " MY MSX MUSIC x2");
+	Print_DrawLineH(0, 1, 32);
+	Print_SetPosition(0, 3);
+	Print_DrawText("SPACE = switch track");
+
+	PlaySong(0);
+
+	u8 prev = 0xFF;
+	u8 anim = 0;
+	while (1)
+	{
+		Halt();
+		LVGM_Decode();
+		#if (PSG_ACCESS == PSG_INDIRECT)
+		PSG_Apply();
+		#endif
+
+		u8 row8 = Keyboard_Read(8);
+		if (IS_KEY_PRESSED(row8, KEY_SPACE) && !IS_KEY_PRESSED(prev, KEY_SPACE))
+			PlaySong(g_Cur ^ 1);
+		prev = row8;
+
+		Print_SetPosition(31, 0);
+		Print_DrawChar("|/-\\"[(anim++ >> 3) & 3]);
+	}
+}