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sceDisplaySetBrightness and sceDisplayDisable sample

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sakya

Joined: 28 Apr 2006
Posts: 190

Posted: Mon Jul 09, 2007 7:32 pm Post subject: sceDisplaySetBrightness and sceDisplayDisable sample

Hi! :)

Since it seems I wasn't the only one to have problems with these functions, here's a simple program that uses sceDisplaySetBrightness/sceDisplayGetBrightness and sceDisplayDisable/sceDisplayEnable

Code:

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

PSP_MODULE_INFO("Brightness Test ", 0x1000, 1, 1);
PSP_MAIN_THREAD_ATTR(0);

void sceDisplay_driver_9E3C6DC6(int a0,int a1);//a0 0-100,a1 = 0/1 (set to 0)
#define sceDisplaySetBrightness sceDisplay_driver_9E3C6DC6
void sceDisplay_driver_31C4BAA8(int *a0,int *a1);
#define sceDisplayGetBrightness sceDisplay_driver_31C4BAA8
int sceDisplayEnable(void);
int sceDisplayDisable(void);

//Flag for exit from loop when user exits with HOME:
static int runningFlag = 1;

// TWILIGHT ZONE! <do doo do doo>
/* Exit callback */
int exit_callback(int arg1, int arg2, void *common) {
runningFlag = 0;
sceKernelExitGame();
return 0;
}

/* Callback thread */
int CallbackThread(SceSize args, void *argp) {
int cbid;

cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
sceKernelRegisterExitCallback(cbid);

sceKernelSleepThreadCB();

return 0;
}

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

thid = sceKernelCreateThread("update_thread", CallbackThread, 0x11, 0xFA0, PSP_THREAD_ATTR_USER, 0);
if(thid >= 0) {
sceKernelStartThread(thid, 0, 0);
}

return thid;
}
// END OF TWILIGHT ZONE! <do doo do do>

int main() {
      scePowerSetClockFrequency(222, 222, 111);

SetupCallbacks();

      sceDisplaySetFrameBuf(NULL,0,PSP_DISPLAY_PIXEL_FORMAT_4444, PSP_DISPLAY_SETBUF_IMMEDIATE);

pspDebugScreenInit();
      pspDebugScreenSetTextColor(0xffffff);
      pspDebugScreenSetBackColor(0x000000);
      pspDebugScreenSetXY(0, 0);
      pspDebugScreenPrintf("Brightness test");

      static int curBrightness = 0;
      static int displayStatus = 1;

      SceCtrlData pad;
      sceCtrlSetSamplingMode(PSP_CTRL_MODE_ANALOG);

      sceDisplayGetBrightness(&curBrightness, 0);

      pspDebugScreenSetXY(0, 22);
      pspDebugScreenPrintf("Press START to turn display on/off");
      pspDebugScreenSetXY(0, 23);
      pspDebugScreenPrintf("Press L or R to change brightness");
      pspDebugScreenSetXY(0, 24);
      pspDebugScreenPrintf("Press TRIANGLE to exit");

      while(runningFlag) {
      pspDebugScreenSetXY(0, 15);
      pspDebugScreenPrintf("Current brightness: %3.3i", curBrightness);

      sceCtrlReadBufferPositive(&pad, 1);
      if(pad.Buttons & PSP_CTRL_LTRIGGER) {
         if (curBrightness > 0){
            sceDisplaySetBrightness(--curBrightness, 0);
            sceKernelDelayThread(100000);
         }
      }else if(pad.Buttons & PSP_CTRL_RTRIGGER) {
         if (curBrightness < 100){
            sceDisplaySetBrightness(++curBrightness, 0);
            sceKernelDelayThread(100000);
         }
      }else if(pad.Buttons & PSP_CTRL_START) {
         if (displayStatus == 1){
            sceDisplayDisable();
            displayStatus = 0;
         }else{
            sceDisplayEnable();
            displayStatus = 1;
         }
         sceKernelDelayThread(400000);
      }else if(pad.Buttons & PSP_CTRL_TRIANGLE) {
         break;
      }
      }
      sceKernelExitGame();
      return(0);
}

Makefile:

Code:

TARGET = bright
OBJS = main.o
CFLAGS = -O3 -G0 -Wall
CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS = $(CFLAGS)
LIBDIR =

LIBS = -lpspgu -lpspdisplay_driver -lpsppower
LDFLAGS =
EXTRA_TARGETS = EBOOT.PBP
PSP_EBOOT_TITLE = Brightness Test
PSPSDK=$(shell psp-config --pspsdk-path)
include $(PSPSDK)/lib/build.mak

Maybe it's usefull for someone else. :)
Thanks to Art for his help.

Just a question: the program works fine, but compiling it I get an "implicit declaration of function 'sceDisplayDisable'" but cannot find any header file with sceDisplayDisable declared in my sdk...

EDIT: fixed code, no more "implicit declaration..." warning. ;)

Ciaooo
Sakya

Last edited by sakya on Wed Aug 01, 2007 9:49 pm; edited 2 times in total

Art

Joined: 09 Nov 2005
Posts: 647

Posted: Tue Jul 10, 2007 12:57 am Post subject:

Add this:

Code:

int sceDisplayEnable(void);
int sceDisplayDisable(void);

after

Code:

void sceDisplay_driver_9E3C6DC6(int a0,int a1);//a0 0-100,a1 = 0/1 (set to 0)
#define sceDisplaySetBrightness sceDisplay_driver_9E3C6DC6
void sceDisplay_driver_31C4BAA8(int *a0,int *a1);
#define sceDisplayGetBrightness sceDisplay_driver_31C4BAA8

Art.

sakya

Joined: 28 Apr 2006
Posts: 190

Posted: Tue Jul 10, 2007 1:06 am Post subject:

Hi! :) Many thanks (again). :) Edited the first message. Ciaooo Sakya

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