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make gp2x mp3 playback functional (need to unpack and compile helix decoder separately in platform/common/helix)

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kub 2019-03-18 23:14:07 +01:00 • committed by kub
parent c79d0bb90f
commit 340e528ff8
13 changed files with 274 additions and 59 deletions
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39
platform/gp2x/code940/Makefile
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@ -1,17 +1,23 @@
# you may or may not need to change this
#devkit_path = x:/stuff/dev/devkitgp2x/
devkit_path ?= $(HOME)/opt/devkitGP2X/
lgcc_path = $(devkit_path)lib/gcc/arm-linux/4.0.3/
CROSS = arm-linux-
#devkit_path ?= $(HOME)/opt/devkitGP2X/
#lgcc_path = $(devkit_path)lib/gcc/arm-linux/4.0.3/
#CROSS = $(devkit_path)bin/arm-linux-
#devkit_path ?= $(HOME)/opt/open2x
#lgcc_path = $(devkit_path)/gcc-4.1.1-glibc-2.3.6/lib/gcc/arm-open2x-linux/4.1.1/
#CROSS ?= $(devkit_path)/gcc-4.1.1-glibc-2.3.6/bin/arm-open2x-linux-
#devkit_path ?= $(HOME)/opt/arm-unknown-linux-gnu
#lgcc_path = $(HOME)/opt/open2x/gcc-4.1.1-glibc-2.3.6/lib/gcc/arm-open2x-linux/4.1.1/
#CROSS ?= $(devkit_path)/bin/arm-unknown-linux-gnu-
lgcc_path = $(HOME)/opt/open2x/gcc-4.1.1-glibc-2.3.6/lib/gcc/arm-open2x-linux/4.1.1/
CROSS ?= arm-linux-gnueabi-
# settings
#up = 1
CFLAGS += -O2 -Wall -fomit-frame-pointer -fstrict-aliasing -ffast-math
CFLAGS += -I../.. -I. -D__GP2X__ -DARM
CFLAGS += -mcpu=arm940t -mtune=arm940t
LDFLAGS = -static -s -e code940 -Ttext 0x0 -L$(lgcc_path) -lgcc
CFLAGS += -O2 -Wall -mno-thumb-interwork -fstrict-aliasing -ffast-math
CFLAGS += -I../../common/helix/pub -I../../.. -I. -D__GP2X__ -DARM
CFLAGS += -mcpu=arm940t -mtune=arm940t -mabi=apcs-gnu -mfloat-abi=soft -mfpu=fpa
LDFLAGS = -static -e code940 -Ttext 0x0 -L$(lgcc_path) -lgcc
GCC = $(CROSS)gcc
STRIP = $(CROSS)strip
@ -36,7 +42,9 @@ all: $(BIN)
# stuff for 940 core
# init, emu_control, emu
OBJS940 += 940init.o 940.o 940ym2612.o memcpy.o misc_arm.o mp3.o
OBJS940 += 940init.o 940.o 940ym2612.o misc_arm.o mp3_sync.o
# the asm memcpy code crashes job LOAD2 on 940. Possibly a globbered reg?
# OBJS940 += memcpy.o
# the asm code seems to be faster when run on 920, but not on 940 for some reason
# OBJS940 += ../../Pico/sound/ym2612_asm.o
@ -44,12 +52,13 @@ OBJS940 += 940init.o 940.o 940ym2612.o memcpy.o misc_arm.o mp3.o
OBJS940 += uClibc/memset.o uClibc/s_floor.o uClibc/e_pow.o uClibc/e_sqrt.o uClibc/s_fabs.o
OBJS940 += uClibc/s_scalbn.o uClibc/s_copysign.o uClibc/k_sin.o uClibc/k_cos.o uClibc/s_sin.o
OBJS940 += uClibc/e_rem_pio2.o uClibc/k_rem_pio2.o uClibc/e_log.o uClibc/wrappers.o
LIBHELIX ?= ../../common/helix/$(notdir $(CROSS))helix_mp3.a
$(BIN) : code940.elf
@echo ">>>" $@
$(OBJCOPY) -O binary $< $@
code940.elf : $(OBJS940) ../../common/helix/$(CROSS)helix-mp3.a
code940.elf : $(OBJS940) $(LIBHELIX)
@echo ">>>" $@
$(LD) $^ $(LDFLAGS) -o $@ -Map code940.map
@ -64,8 +73,12 @@ misc_arm.o : ../../../pico/misc_arm.s
@echo ">>>" $@
$(GCC) $(CFLAGS) -DEXTERNAL_YM2612 -c $< -o $@
../../common/helix/helix_mp3.a:
@make -C ../../common/helix/
mp3_sync.o: ../../common/mp3_sync.c
@echo ">>>" $@
$(GCC) $(CFLAGS) -Os -DCODE940 -c $< -o $@
$(LIBHELIX):
@$(MAKE) -C ../../common/helix/ CROSS=$(CROSS)
up: $(BIN)
@ -82,7 +95,7 @@ tidy:
##
OBJSMP3T = mp3test.o ../gp2x.o ../asmutils.o ../usbjoy.o
mp3test.gpe : $(OBJSMP3T) ../helix/helix_mp3.a
mp3test.gpe : $(OBJSMP3T) $(LIBHELIX)
$(GCC) -static -o $@ $^
$(STRIP) $@
@cp -v $@ /mnt/gp2x/mnt/sd