Add PS Vita backend.

2026-04-23 08:44:04 +02:00 · 2026-03-01 07:53:00 +10:00
parent d7ce0506f6
commit bc52a82903
5 changed files with 569 additions and 0 deletions
@@ -0,0 +1,37 @@
+cmake_minimum_required(VERSION 3.16)
+
+if(NOT DEFINED CMAKE_TOOLCHAIN_FILE)
+    if(DEFINED ENV{VITASDK})
+        set(CMAKE_TOOLCHAIN_FILE "$ENV{VITASDK}/share/vita.toolchain.cmake" CACHE PATH "toolchain file")
+    else()
+        message(FATAL_ERROR "Please define VITASDK to point to your SDK path!")
+    endif()
+endif()
+
+
+project(miniaudio_vita)
+include("${VITASDK}/share/vita.cmake" REQUIRED)
+
+set(VITA_APP_NAME "miniaudio_vita")
+set(VITA_TITLEID  "MINIAUDIO00001")
+set(VITA_VERSION  "01.00")
+
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu11")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+
+add_executable(${PROJECT_NAME}
+    miniaudio_vita.c
+)
+
+target_link_libraries(${PROJECT_NAME}
+    m
+    SceAudio_stub
+    SceDisplay_stub
+    SceCtrl_stub
+)
+
+vita_create_self(${PROJECT_NAME}.self ${PROJECT_NAME})
+vita_create_vpk(${PROJECT_NAME}.vpk ${VITA_TITLEID} ${PROJECT_NAME}.self
+    VERSION ${VITA_VERSION}
+    NAME ${VITA_APP_NAME}
+)
@@ -0,0 +1,114 @@
+/* Uncomment this and update the path to enable the debug screen. */
+/*#include "/opt/toolchains/vitasdk/samples/common/debugScreen.c"*/
+
+#if defined(DEBUG_SCREEN_H)
+#define HAS_DEBUG_SCREEN
+#endif
+
+#ifdef HAS_DEBUG_SCREEN
+#define printf psvDebugScreenPrintf
+#endif
+
+#define MA_DEBUG_OUTPUT
+#include "../../miniaudio.c"
+
+#include <psp2/ctrl.h>
+
+static void data_callback(ma_device* pDevice, void* pFramesOut, const void* pFramesIn, ma_uint32 frameCount)
+{
+    static int c = 0;
+
+    ma_data_source* pDataSource = (ma_data_source*)ma_device_get_user_data(pDevice);
+    ma_data_source_read_pcm_frames(pDataSource, pFramesOut, frameCount, NULL);
+
+    (void)pFramesIn;
+    (void)pDevice;
+}
+
+int main()
+{
+    ma_result result;
+    ma_device_config deviceConfig;
+    ma_device device;
+    ma_waveform waveform;
+    ma_decoder decoder;
+    SceCtrlData ctrlPeek, ctrlPress;
+
+    #ifdef HAS_DEBUG_SCREEN
+    psvDebugScreenInit();
+    #endif
+
+    deviceConfig = ma_device_config_init(ma_device_type_playback);
+    //deviceConfig.threadingMode      = MA_THREADING_MODE_SINGLE_THREADED;
+    deviceConfig.playback.format    = ma_format_s16;
+    deviceConfig.playback.channels  = 2;
+    deviceConfig.sampleRate         = 48000;
+    deviceConfig.dataCallback       = data_callback;
+    deviceConfig.pUserData          = &waveform;
+    deviceConfig.periodSizeInFrames = 1024;
+
+    #if 0
+    ma_device_backend_config backend = ma_device_backend_config_init(ma_device_backend_vita, NULL);
+    result = ma_device_init_ex(&backend, 1, NULL, &deviceConfig, &device);
+    #else
+    result = ma_device_init(NULL, &deviceConfig, &device);
+    #endif
+    if (result != MA_SUCCESS) {
+        return 1;
+    }
+
+    /* Initialize the waveform before starting the device. */
+    {
+        ma_waveform_config waveformConfig = ma_waveform_config_init(device.playback.format, device.playback.channels, device.sampleRate, ma_waveform_type_sine, 0.1f, 400);
+        ma_waveform_init(&waveformConfig, &waveform);
+    }
+
+    /* Decoder. */
+    #if 0
+    {
+        ma_decoder_config decoderConfig = ma_decoder_config_init(device.playback.format, device.playback.channels, device.sampleRate);
+        ma_decoder_init_file("test.mp3", &decoderConfig, &decoder);
+    }
+    #endif
+
+    result = ma_device_start(&device);
+    if (result != MA_SUCCESS) {
+        return 1;
+    }
+
+    for (;;) {
+        ctrlPress = ctrlPeek;
+		sceCtrlPeekBufferPositive(0, &ctrlPeek, 1);
+		ctrlPress.buttons = ctrlPeek.buttons & ~ctrlPress.buttons;
+
+        if(ctrlPress.buttons == SCE_CTRL_SQUARE) {
+            if (ma_device_is_started(&device)) {
+                printf("STOPPING\n");
+                ma_device_stop(&device);
+            } else {
+                printf("STARTING\n");
+                ma_device_start(&device);
+            }
+        }
+
+        if(ctrlPress.buttons == SCE_CTRL_CROSS) {
+            break;
+        }
+
+        if (ma_device_get_threading_mode(&device) == MA_THREADING_MODE_SINGLE_THREADED) {
+            ma_device_step(&device, MA_BLOCKING_MODE_NON_BLOCKING);
+
+            /*
+            I found that if I don't relax the CPU a bit I'll get glitching when running in vita3k. Maybe the loop is pinning the CPU
+            at 100% and starving the audio system?
+            */
+            ma_sleep(1);
+        } else {
+            ma_sleep(1);
+        }
+    }
+
+    ma_waveform_uninit(&waveform);
+    ma_device_uninit(&device);
+    return 0;
+}