feat: initial commit for spcPauseMusic and spcResumeMusic function

snes-examples/audio/music2/Makefile

@@ -0,0 +1,32 @@
+ifeq ($(strip $(PVSNESLIB_HOME)),)
+$(error "Please create an environment variable PVSNESLIB_HOME by following this guide: https://github.com/alekmaul/pvsneslib/wiki/Installation")
+endif
+
+# BEFORE including snes_rules :
+# list in AUDIOFILES all your .it files in the right order. It will build to generate soundbank file
+AUDIOFILES := res/pollen8.it
+# then define the path to generate soundbank data. The name can be different but do not forget to update your include in .c file !
+export SOUNDBANK := res/soundbank
+
+include ${PVSNESLIB_HOME}/devkitsnes/snes_rules
+
+.PHONY: bitmaps all
+
+#---------------------------------------------------------------------------------
+# ROMNAME is used in snes_rules file
+export ROMNAME := music2
+
+# to build musics, define SMCONVFLAGS with parameters you want
+SMCONVFLAGS	:= -s -o $(SOUNDBANK) -V -b 5
+musics: $(SOUNDBANK).obj
+
+all: musics bitmaps $(ROMNAME).sfc
+
+clean: cleanBuildRes cleanRom cleanGfx cleanAudio
+
+#---------------------------------------------------------------------------------
+pvsneslibfont.pic: pvsneslibfont.bmp
+	@echo convert font with no tile reduction ... $(notdir $@)
+	$(GFXCONV) -s 8 -o 2 -u 16 -p -e 1 -t bmp -i $<
+
+bitmaps : pvsneslibfont.pic

snes-examples/audio/music2/data.asm

@@ -0,0 +1,13 @@
+.include "hdr.asm"
+
+.section ".rodata1" superfree
+
+snesfont:
+.incbin "pvsneslibfont.pic"
+
+snespal:
+.incbin "pvsneslibfont.pal"
+
+.ends
+
+

snes-examples/audio/music2/hdr.asm

@@ -0,0 +1,46 @@
+;==LoRom==      ; We'll get to HiRom some other time.
+
+.MEMORYMAP                      ; Begin describing the system architecture.
+  SLOTSIZE $8000                ; The slot is $8000 bytes in size. More details on slots later.
+  DEFAULTSLOT 0                 ; There's only 1 slot in SNES, there are more in other consoles.
+  SLOT 0 $8000                  ; Defines Slot 0's starting address.
+  SLOT 1 $0 $2000
+  SLOT 2 $2000 $E000
+  SLOT 3 $0 $10000
+.ENDME          ; End MemoryMap definition
+
+.ROMBANKSIZE $8000              ; Every ROM bank is 32 KBytes in size
+.ROMBANKS 8                     ; 2 Mbits - Tell WLA we want to use 8 ROM Banks
+
+.SNESHEADER
+  ID "SNES"                     ; 1-4 letter string, just leave it as "SNES"
+
+  NAME "LIBSNES MUSIC DEMO   "  ; Program Title - can't be over 21 bytes,
+  ;    "123456789012345678901"  ; use spaces for unused bytes of the name.
+
+  SLOWROM
+  LOROM
+
+  CARTRIDGETYPE $00             ; $00 = ROM only $02 = ROM+SRAM, see WLA documentation for others
+  ROMSIZE $08                   ; $08 = 2 Mbits,  see WLA doc for more..
+  SRAMSIZE $00                  ; $00 = No Sram, $01 = 16 kbits, see WLA doc for more..
+  COUNTRY $01                   ; $01 = U.S.  $00 = Japan, that's all I know
+  LICENSEECODE $00              ; Just use $00
+  VERSION $00                   ; $00 = 1.00, $01 = 1.01, etc.
+.ENDSNES
+
+.SNESNATIVEVECTOR               ; Define Native Mode interrupt vector table
+  COP EmptyHandler
+  BRK EmptyHandler
+  ABORT EmptyHandler
+  NMI VBlank
+  IRQ EmptyHandler
+.ENDNATIVEVECTOR
+
+.SNESEMUVECTOR                  ; Define Emulation Mode interrupt vector table
+  COP EmptyHandler
+  ABORT EmptyHandler
+  NMI EmptyHandler
+  RESET tcc__start                   ; where execution starts
+  IRQBRK EmptyHandler
+.ENDEMUVECTOR

snes-examples/audio/music2/music2.c

@@ -0,0 +1,93 @@
+/*---------------------------------------------------------------------------------
+
+
+    Simple music demo with pause / resume function
+    -- alekmaul
+
+
+---------------------------------------------------------------------------------*/
+#include <snes.h>
+
+#include "res/soundbank.h"
+
+extern char snesfont, snespal;
+extern char SOUNDBANK__;
+
+unsigned short bgcolor = 0;
+
+u8  keyapressed = 0,keybpressed = 0;
+
+//---------------------------------------------------------------------------------
+int main(void)
+{
+    // Initialize sound engine (take some time)
+    spcBoot();
+
+    // Initialize text console with our font
+    consoleSetTextVramBGAdr(0x6800);
+    consoleSetTextVramAdr(0x3000);
+    consoleSetTextOffset(0x0100);
+    consoleInitText(0, 16 * 2, &snesfont, &snespal);
+
+    // Set give soundbank
+    spcSetBank(&SOUNDBANK__);
+
+    // Load music
+    spcLoad(MOD_POLLEN8);
+
+    // Init background
+    bgSetGfxPtr(0, 0x2000);
+    bgSetMapPtr(0, 0x6800, SC_32x32);
+
+    // Now Put in 16 color mode and disable Bgs except current
+    setMode(BG_MODE1, 0);
+    bgSetDisable(1);
+    bgSetDisable(2);
+
+    // Draw a wonderful text :P
+    consoleDrawText(5, 10, "Let's the music play !");
+    consoleDrawText(5, 12, "     A to PAUSE      ");
+    consoleDrawText(5, 13, "    B to RESUME      ");
+
+    // Wait for nothing :P
+    setScreenOn();
+
+    // Play file from the beginning
+    spcPlay(0);
+
+    // Wait for nothing :D !
+    while (1)
+    {
+        // Test key a (without repeating sound if still pressed)
+        if (padsCurrent(0) & KEY_A)
+        {
+            if (keyapressed == 0)
+            {
+                keyapressed = 1;
+                spcPauseMusic(); // Pause music and save position
+            }
+        }
+        else
+            keyapressed = 0;
+        if (padsCurrent(0) & KEY_B)
+        {
+            if (keybpressed == 0)
+            {
+                keybpressed = 1;
+                // stop current music and load music. We load 1st music just after effects, so number 1)
+                spcResumeMusic(); // Resume music at current position
+            }
+		}
+        else
+            keybpressed = 0;
+
+        // Update music / sfx stream and wait vbl
+        spcProcess();
+        WaitForVBlank();
+
+        // change background color
+        bgcolor++;
+        setPaletteColor(0x00, bgcolor);
+    }
+    return 0;
+}