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194ab4981e
* PACKAGE: add & create `libretro-fake08` pkg * PACKAGE: optimize `libretro-fake08` on uClibc (patch) - disable audio by default here
88 lines
2.8 KiB
Diff
88 lines
2.8 KiB
Diff
From fb59413d4d6897ac47862a47e5cf8a9fb30df107 Mon Sep 17 00:00:00 2001
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From: Apaczer <94932128+Apaczer@users.noreply.github.com>
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Date: Thu, 20 Feb 2025 22:52:10 +0100
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Subject: [PATCH] LIBRETRO: add `audio_play` option
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---
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platform/libretro/libretro.cpp | 20 ++++++++++++++++++--
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platform/libretro/libretro_core_options.h | 11 +++++++++++
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2 files changed, 29 insertions(+), 2 deletions(-)
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diff --git a/platform/libretro/libretro.cpp b/platform/libretro/libretro.cpp
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index 47fa867..daeb526 100644
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--- a/platform/libretro/libretro.cpp
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+++ b/platform/libretro/libretro.cpp
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@@ -35,6 +35,7 @@ static retro_log_printf_t log_cb;
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const size_t audioBufferSize = SAMPLESPERFRAME * NUM_BUFFERS;
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int16_t audioBuffer[audioBufferSize];
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+int16_t audioBufferNULL[audioBufferSize];
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const int PicoScreenWidth = 128;
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const int PicoScreenHeight = 128;
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@@ -45,6 +46,8 @@ static int crop_h_right = 0;
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static int crop_v_top = 0;
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static int crop_v_bottom = 0;
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+static bool option_audio_fill_buffer = true;
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+
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const size_t screenBufferSize = PicoScreenWidth*PicoScreenHeight;
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uint16_t screenBuffer[screenBufferSize];
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@@ -72,6 +75,15 @@ static void check_variables(bool startup)
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struct retro_variable var = {0};
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int video_updated = 0;
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+ var.key = "audio_play";
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+ if (enviro_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
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+ {
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+ if (!strcmp(var.value, "enabled"))
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+ option_audio_fill_buffer = true;
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+ else if (!strcmp(var.value, "disabled"))
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+ option_audio_fill_buffer = false;
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+ }
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+
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var.key = "fake08_video_scale";
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if (enviro_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
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{
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@@ -404,8 +416,12 @@ EXPORT void retro_run()
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kDown = currKDown;
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if (frame % 2 == 0) {
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- _audio->FillAudioBuffer(&audioBuffer, 0, SAMPLESPERFRAME);
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- audio_batch_cb(audioBuffer, SAMPLESPERFRAME);
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+ if (option_audio_fill_buffer) {
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+ _audio->FillAudioBuffer(&audioBuffer, 0, SAMPLESPERFRAME);
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+ audio_batch_cb(audioBuffer, SAMPLESPERFRAME);
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+ } else {
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+ audio_batch_cb(audioBufferNULL, SAMPLESPERFRAME);
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+ }
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}
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}
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diff --git a/platform/libretro/libretro_core_options.h b/platform/libretro/libretro_core_options.h
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index 02c3a1a..af05ffc 100644
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--- a/platform/libretro/libretro_core_options.h
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+++ b/platform/libretro/libretro_core_options.h
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@@ -49,6 +49,17 @@ extern "C" {
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* frontend language definition */
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struct retro_core_option_definition option_defs_us[] = {
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+ {
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+ "audio_play",
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+ "Audio playback",
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+ "Enable or disable Audio playback for performance sake",
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+ {
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+ { "enabled", NULL },
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+ { "disabled", NULL },
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+ { NULL, NULL },
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+ },
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+ "enabled"
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+ },
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{
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"fake08_video_scale",
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"Video Scale",
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--
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2.45.2.windows.1
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