PSP开发[C++]接收按键控制

padctrl.cpp

#include <pspkernel.h>
#include <pspdebug.h> 
#include <pspdisplay.h>
#include <pspctrl.h>

#include <iostream>

PSP_MODULE_INFO("Hello World", 0, 1, 1); 

#define printf pspDebugScreenPrintf 

using namespace std;

/* Exit callback */
int exit_callback(int arg1, int arg2, void *common) {
          sceKernelExitGame();
          return 0;
}

/* Callback thread */
int CallbackThread(SceSize args, void *argp) {
          int cbid;
          //Create callback
          cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
          sceKernelRegisterExitCallback(cbid);
          
          //Sleep thread but service any callbacks as necessary. 
          sceKernelSleepThreadCB();

          return 0;
}

/* Sets up the callback thread and returns its thread id */
int SetupCallbacks() {
          int thid = 0;

          //Create a thread. 
          thid = sceKernelCreateThread("update_thread", CallbackThread, 0x11, 0xFA0, 0, 0);
          if(thid >= 0) {
                    //Start a created thread. 
                    sceKernelStartThread(thid, 0, 0);
          }

          return thid;
} 

int main(int argc, char **argv)
{
    //Initialise the debug screen. 
    pspDebugScreenInit();
    //setup callback; 
    SetupCallbacks(); 
    
    //按键struct 
    SceCtrlData pad; 
    
    printf("Press [X] To Start the Timer"); 
    
    while(1)
    {
        //Read buffer positive. 
        sceCtrlReadBufferPositive(&pad, 1); 
        
        if(pad.Buttons & PSP_CTRL_CROSS) 
        {
            printf("you pressed X");
                break;
        }
        //清屏 
        pspDebugScreenClear(); 
    }    
    
    //Sleep thread
    sceKernelSleepThread(); 
    
    return 0; 
}

makefile

TARGET = padctrl
OBJS = padctrl.o

BUILD_PRX = 1
PSP_FW_VERSION = 371

# C编译器参数 
CFLAGS = -O2 -G0 -Wall
# C++编译器参数 
CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti
# 汇编编译器参数 
ASFLAGS = $(CFLAGS)

# 引用的库 -l stdC++ 
LIBS = -lstdc++ 

EXTRA_TARGETS = EBOOT.PBP
PSP_EBOOT_TITLE = pad control

PSPSDK=$(shell psp-config --pspsdk-path)
include $(PSPSDK)/lib/build.mak 

 按键的枚举

PSP_CTRL_SELECT	Select button.
PSP_CTRL_START	Start button.
PSP_CTRL_UP	Up D-Pad button.
PSP_CTRL_RIGHT	Right D-Pad button.
PSP_CTRL_DOWN	Down D-Pad button.
PSP_CTRL_LEFT	Left D-Pad button.
PSP_CTRL_LTRIGGER	Left trigger.
PSP_CTRL_RTRIGGER	Right trigger.
PSP_CTRL_TRIANGLE	Triangle button.
PSP_CTRL_CIRCLE	Circle button.
PSP_CTRL_CROSS	Cross button.
PSP_CTRL_SQUARE	Square button.
PSP_CTRL_HOME	Home button.
PSP_CTRL_HOLD	Hold button.
PSP_CTRL_NOTE	Music Note button.

接收按键需要一个while(1)来接受系统事件。
然后通过sceCtrlReadBufferPositive(&pad, 1); 来读取按键内容。