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PACKAGE/DEFCONFIG: create&add libretro-fake08 (#155)

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* PACKAGE: add & create `libretro-fake08` pkg

* PACKAGE: optimize `libretro-fake08` on uClibc (patch)
- disable audio by default here
This commit is contained in:
Apaczer
2025-02-28 22:04:24 +01:00
committed by GitHub
parent f99d49da13
commit 194ab4981e
9 changed files with 164 additions and 0 deletions
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4
board/miyoo/main/gmenu2x/sections/cores/zblank.fake08.ra Normal file
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@@ -0,0 +1,4 @@
title=fake08
description=fake08 libretro core
exec=/mnt/emus/retroarch/fake08.sh
selectordir=/mnt/roms/PICO8

1
configs/miyoo_musl_defconfig
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@@ -203,6 +203,7 @@ BR2_PACKAGE_LIBRETRO_CAP32=y
BR2_PACKAGE_LIBRETRO_CHAILOVE=y
BR2_PACKAGE_LIBRETRO_DINOTHAWR=y
BR2_PACKAGE_LIBRETRO_ECWOLF=y
BR2_PACKAGE_LIBRETRO_FAKE08=y
BR2_PACKAGE_LIBRETRO_FCEUMM=y
BR2_PACKAGE_LIBRETRO_FMSX=y
BR2_PACKAGE_LIBRETRO_FREECHAF=y

1
configs/miyoo_uclibc_defconfig
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@@ -181,6 +181,7 @@ BR2_PACKAGE_LIBRETRO_CAP32=y
BR2_PACKAGE_LIBRETRO_CHAILOVE=y
BR2_PACKAGE_LIBRETRO_DINOTHAWR=y
BR2_PACKAGE_LIBRETRO_ECWOLF=y
BR2_PACKAGE_LIBRETRO_FAKE08=y
BR2_PACKAGE_LIBRETRO_FCEUMM=y
BR2_PACKAGE_LIBRETRO_FMSX=y
BR2_PACKAGE_LIBRETRO_FREECHAF=y

1
package/miyoo/retroarch/Config.in
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@@ -24,6 +24,7 @@ source "package/miyoo/retroarch/libretro-cap32/Config.in"
source "package/miyoo/retroarch/libretro-chailove/Config.in"
source "package/miyoo/retroarch/libretro-dinothawr/Config.in"
source "package/miyoo/retroarch/libretro-ecwolf/Config.in"
source "package/miyoo/retroarch/libretro-fake08/Config.in"
source "package/miyoo/retroarch/libretro-fceumm/Config.in"
source "package/miyoo/retroarch/libretro-fmsx/Config.in"
source "package/miyoo/retroarch/libretro-freechaf/Config.in"

87
package/miyoo/retroarch/libretro-fake08/0001-LIBRETRO-add-audio_play-option.patch Normal file
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@@ -0,0 +1,87 @@
From fb59413d4d6897ac47862a47e5cf8a9fb30df107 Mon Sep 17 00:00:00 2001
From: Apaczer <94932128+Apaczer@users.noreply.github.com>
Date: Thu, 20 Feb 2025 22:52:10 +0100
Subject: [PATCH] LIBRETRO: add `audio_play` option
---
platform/libretro/libretro.cpp | 20 ++++++++++++++++++--
platform/libretro/libretro_core_options.h | 11 +++++++++++
2 files changed, 29 insertions(+), 2 deletions(-)
diff --git a/platform/libretro/libretro.cpp b/platform/libretro/libretro.cpp
index 47fa867..daeb526 100644
--- a/platform/libretro/libretro.cpp
+++ b/platform/libretro/libretro.cpp
@@ -35,6 +35,7 @@ static retro_log_printf_t log_cb;
const size_t audioBufferSize = SAMPLESPERFRAME * NUM_BUFFERS;
int16_t audioBuffer[audioBufferSize];
+int16_t audioBufferNULL[audioBufferSize];
const int PicoScreenWidth = 128;
const int PicoScreenHeight = 128;
@@ -45,6 +46,8 @@ static int crop_h_right = 0;
static int crop_v_top = 0;
static int crop_v_bottom = 0;
+static bool option_audio_fill_buffer = true;
+
const size_t screenBufferSize = PicoScreenWidth*PicoScreenHeight;
uint16_t screenBuffer[screenBufferSize];
@@ -72,6 +75,15 @@ static void check_variables(bool startup)
struct retro_variable var = {0};
int video_updated = 0;
+ var.key = "audio_play";
+ if (enviro_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
+ {
+ if (!strcmp(var.value, "enabled"))
+ option_audio_fill_buffer = true;
+ else if (!strcmp(var.value, "disabled"))
+ option_audio_fill_buffer = false;
+ }
+
var.key = "fake08_video_scale";
if (enviro_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
@@ -404,8 +416,12 @@ EXPORT void retro_run()
kDown = currKDown;
if (frame % 2 == 0) {
- _audio->FillAudioBuffer(&audioBuffer, 0, SAMPLESPERFRAME);
- audio_batch_cb(audioBuffer, SAMPLESPERFRAME);
+ if (option_audio_fill_buffer) {
+ _audio->FillAudioBuffer(&audioBuffer, 0, SAMPLESPERFRAME);
+ audio_batch_cb(audioBuffer, SAMPLESPERFRAME);
+ } else {
+ audio_batch_cb(audioBufferNULL, SAMPLESPERFRAME);
+ }
}
}
diff --git a/platform/libretro/libretro_core_options.h b/platform/libretro/libretro_core_options.h
index 02c3a1a..af05ffc 100644
--- a/platform/libretro/libretro_core_options.h
+++ b/platform/libretro/libretro_core_options.h
@@ -49,6 +49,17 @@ extern "C" {
* frontend language definition */
struct retro_core_option_definition option_defs_us[] = {
+ {
+ "audio_play",
+ "Audio playback",
+ "Enable or disable Audio playback for performance sake",
+ {
+ { "enabled", NULL },
+ { "disabled", NULL },
+ { NULL, NULL },
+ },
+ "enabled"
+ },
{
"fake08_video_scale",
"Video Scale",
--
2.45.2.windows.1

29
package/miyoo/retroarch/libretro-fake08/0002-LIBRETRO-disable-audio-on-UCLIBC.patch Normal file
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@@ -0,0 +1,29 @@
From 9573ce039aa2ea1a9eb730b5b9e215cc7c4a9955 Mon Sep 17 00:00:00 2001
From: Apaczer <94932128+Apaczer@users.noreply.github.com>
Date: Sat, 22 Feb 2025 15:02:35 +0100
Subject: [PATCH] LIBRETRO: disable audio on UCLIBC
FillAudioBuffer() is botched here
---
platform/libretro/libretro_core_options.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/platform/libretro/libretro_core_options.h b/platform/libretro/libretro_core_options.h
index af05ffc..5399c6d 100644
--- a/platform/libretro/libretro_core_options.h
+++ b/platform/libretro/libretro_core_options.h
@@ -58,7 +58,11 @@ struct retro_core_option_definition option_defs_us[] = {
{ "disabled", NULL },
{ NULL, NULL },
},
+#if !defined(__UCLIBC__)
"enabled"
+#else
+ "disabled"
+#endif
},
{
"fake08_video_scale",
--
2.45.2.windows.1

11
package/miyoo/retroarch/libretro-fake08/Config.in Normal file
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@@ -0,0 +1,11 @@
config BR2_PACKAGE_LIBRETRO_FAKE08
bool "libretro-fake08"
depends on BR2_PACKAGE_RETROARCH
depends on BR2_INSTALL_LIBSTDCPP
help
A libretro PICO-8 emulator core.
https://github.com/jtothebell/fake-08
comment "LIBRETRO_FAKE08 needs a toolchain w/ C++"
depends on !BR2_INSTALL_LIBSTDCPP

2
package/miyoo/retroarch/libretro-fake08/libretro-fake08.hash Normal file
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@@ -0,0 +1,2 @@
# Locally calculated
sha256 659d2d522620317eaf57f7cf257c2f68e8bc7baf72654c7ed3887c77571a0572 libretro-fake08-0d26fd59103941e5f95e0ee665c6e0fb8c6b6f03-br1.tar.gz

28
package/miyoo/retroarch/libretro-fake08/libretro-fake08.mk Normal file
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@@ -0,0 +1,28 @@
################################################################################
#
# Fake-08
#
################################################################################
#Commit version of Sep 3, 2024
LIBRETRO_FAKE08_VERSION = 0d26fd59103941e5f95e0ee665c6e0fb8c6b6f03
LIBRETRO_FAKE08_SITE = https://github.com/jtothebell/fake-08.git
LIBRETRO_FAKE08_SITE_METHOD = git
LIBRETRO_FAKE08_GIT_SUBMODULES = YES
LIBRETRO_FAKE08_LICENSE = MIT
LIBRETRO_FAKE08_LICENSE_FILES = LICENSE.MD
define LIBRETRO_FAKE08_BUILD_CMDS
CFLAGS="$(TARGET_CFLAGS) $(COMPILER_COMMONS_CFLAGS) -D_NEED_FULL_PATH_" \
CXXFLAGS="$(TARGET_CXXFLAGS) $(COMPILER_COMMONS_CXXFLAGS)" \
LDFLAGS="$(TARGET_LDFLAGS) $(COMPILER_COMMONS_LDFLAGS)" \
$(MAKE) CXX="$(TARGET_CXX)" CC="$(TARGET_CC)" -C $(@D)/platform/libretro -f Makefile platform="unix"
endef
define LIBRETRO_FAKE08_INSTALL_TARGET_CMDS
mkdir -p "${BINARIES_DIR}/retroarch/cores"
$(INSTALL) -D $(@D)/platform/libretro/fake08_libretro.so \
$(TARGET_DIR)/usr/lib/libretro/fake08_libretro.so
endef
$(eval $(generic-package))