EasyMessage V0.1 (Message Dialog Wrapper)

[jojojoris]

Today i made a simple wrapper for the Message Dialog.

You can use it if you want to. It should work on every psp with firmware 2.00 and higher.

NOTE:
You may use it if you want to but a little credit would be nice.

orginal+download

easymessage.h

Code:

/*
 * File:   easymessage.h
 * Author: joris
 *
 * Created on 18 augustus 2009, 19:39
 */

#ifndef _EASYMESSAGE_H
#define _EASYMESSAGE_H

#include <pspdisplay.h>
#include <pspgu.h>
#include <pspkernel.h>
#include <psputility.h>
#include <string.h>

class EasyMessage {
public:
    EasyMessage();
    virtual ~EasyMessage();

    /**
     * Shows A message.
     *
     * @param message - Message which will be displayed to the user
     * @param yesno - boolean wchich enables the yes/no user choice
     *
     * @return 1 of user pressed yes (only when yesno is set to TRUE, otherwise 0
     */
    int ShowMessage(const char * message, bool yesno);

    /**
     * Shows a psp error.
     *
     * NOTE:
     * Not all error codes shows a message.
     *
     * @param error - Error code
     */
    void ShowError(unsigned int error);

    /**
     * Sets the background color of the dialog.
     *
     * @param color - the background collor
     */
    void SetBGColor(unsigned int color);

    /** Inits the GU with the recommanded settings. Should be usable for most
     * applications. (compatible with intrafont)
     */
    void InitGU();

    /**
     * Terminates the GU.
     */
    void TermGU();
private:
    void _RunDialog();
    pspUtilityMsgDialogParams params;
    unsigned int bgcolor;
};

#endif /* _EASYMESSAGE_H */

easymessage.cpp

Code:

/*
 * File:   easymessage.cpp
 * Author: joris
 *
 * Created on 18 augustus 2009, 19:39
 */

#include "easymessage.h"

static unsigned int __attribute__((aligned(16))) list[262144];

EasyMessage::EasyMessage() {
    bgcolor = 0;
    memset(&params, 0, sizeof (params));
    params.base.size = sizeof (params);
    sceUtilityGetSystemParamInt(PSP_SYSTEMPARAM_ID_INT_LANGUAGE, &params.base.language); // Prompt language
    sceUtilityGetSystemParamInt(PSP_SYSTEMPARAM_ID_INT_UNKNOWN, &params.base.buttonSwap); // X/O button swap
    params.base.graphicsThread = 0x11;
    params.base.accessThread = 0x13;
    params.base.fontThread = 0x12;
    params.base.soundThread = 0x10;
}

EasyMessage::~EasyMessage() {
}

void EasyMessage::InitGU() {
    sceGuInit();
    sceGuStart(GU_DIRECT, list);
    sceGuDrawBuffer(GU_PSM_8888, (void*) 0, 512);
    sceGuDispBuffer(480, 272, (void*) 0x88000, 512);
    sceGuDepthBuffer((void*) 0x110000, 512);
    sceGuOffset(2048 - (480 / 2), 2048 - (272 / 2));
    sceGuViewport(2048, 2048, 480, 272);
    sceGuDepthRange(0xc350, 0x2710);
    sceGuScissor(0, 0, 480, 272);
    sceGuEnable(GU_SCISSOR_TEST);
    sceGuDepthFunc(GU_GEQUAL);
    sceGuEnable(GU_DEPTH_TEST);
    sceGuFrontFace(GU_CW);
    sceGuShadeModel(GU_SMOOTH);
    sceGuEnable(GU_CULL_FACE);
    sceGuEnable(GU_CLIP_PLANES);
    sceGuEnable(GU_BLEND);
    sceGuBlendFunc(GU_ADD, GU_SRC_ALPHA, GU_ONE_MINUS_SRC_ALPHA, 0, 0);
    sceGuFinish();
    sceGuSync(0, 0);

    sceDisplayWaitVblankStart();
    sceGuDisplay(GU_TRUE);
}

void EasyMessage::TermGU() {
    sceGuTerm();
}

void EasyMessage::SetBGColor(unsigned int color) {
    bgcolor = color;
}

int EasyMessage::ShowMessage(const char* message, bool yesno) {
    params.mode = PSP_UTILITY_MSGDIALOG_MODE_TEXT;
    params.options = PSP_UTILITY_MSGDIALOG_OPTION_TEXT;
    if (yesno)
        params.options |= PSP_UTILITY_MSGDIALOG_OPTION_YESNO_BUTTONS | PSP_UTILITY_MSGDIALOG_OPTION_DEFAULT_NO;
    strcpy(params.message, message);

    _RunDialog();

    if (params.buttonPressed == PSP_UTILITY_MSGDIALOG_RESULT_YES) return 1;
    else return 0;
}

void EasyMessage::ShowError(unsigned int error) {
    params.mode = PSP_UTILITY_MSGDIALOG_MODE_ERROR;
    params.options = PSP_UTILITY_MSGDIALOG_OPTION_ERROR;
    params.errorValue = error;
    _RunDialog();
}

void EasyMessage::_RunDialog() {
    sceUtilityMsgDialogInitStart(&params);
    for (;;) {
        sceGuStart(GU_DIRECT, list);
        sceGuClearColor(bgcolor);
        sceGuClearDepth(0);
        sceGuClear(GU_COLOR_BUFFER_BIT | GU_DEPTH_BUFFER_BIT);
        sceGuFinish();
        sceGuSync(0, 0);
        switch (sceUtilityMsgDialogGetStatus()) {

            case PSP_UTILITY_DIALOG_VISIBLE:
                sceUtilityMsgDialogUpdate(1);
                break;

            case PSP_UTILITY_DIALOG_QUIT:
                sceUtilityMsgDialogShutdownStart();
                break;

            case PSP_UTILITY_DIALOG_NONE:
                return;
        }
        sceDisplayWaitVblankStart();
        sceGuSwapBuffers();
    }
}

And because some people need a sample...

main.cpp

Code:

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

#include "easymessage.h"

PSP_MODULE_INFO("Inet Sample", 0, 1, 1);
PSP_MAIN_THREAD_ATTR(THREAD_ATTR_USER);

int main() {
    EasyMessage msg;

    msg.InitGU();
    if (msg.ShowMessage("This is a utility message dialog.\nAfter you acknowledge it, this program will\nshow an error message dialog.", 1))
        msg.ShowMessage("You answered YES.", 0);
    else msg.ShowMessage("You answered NO.", 0);

    msg.ShowError(0x80020001);

    msg.ShowMessage("Did you got scared?\n\nThis application will shut down.",0);

    sceKernelExitGame();
    return 0;
}

Makefile

Code:

TARGET = app
OBJS = main.o easymessage.o

INCDIR =
CFLAGS = -G0 -Wall -O2
CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS = $(CFLAGS)

LIBDIR =
LDFLAGS =
LIBS= -lstdc++ -lpspgu

BUILD_PRX=1

EXTRA_TARGETS = EBOOT.PBP
PSP_EBOOT_TITLE = EasyMessage Sample

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

[Arshia001]

Yet another useful release...Tell you what though,why don't you make them in C instead of C++?C would benefit many more people.
Anyhow,good work man.If you keep creating these wrappers,we may have a nice collection of them in the near future.

[jojojoris]

If you keep creating these wrappers,we may have a nice collection of them in the near future.

That's what i'm doin'

A C version would not be that hard i suppose.

[Noware]

Nice work, I like your C++ wrapping around here

Two minor thingies

1.) Make the pointer to the display list a member of your class, so you don't have the 1MB static overhead, also you can automatically call the TermGU() in your destructor

Code:

class EasyMessage {
public:
             EasyMessage()          : mDisplayList(NULL) { }
    virtual ~EasyMessage()          { TermGU(); }

    ...

    void    InitGU();
    void    TermGU()
    {
        if (mDisplayList!=NULL)
        {
            ... terminate GU ...

            free(mDisplayList);
            mDisplayList = NULL;
        }
    }

private:
    void*   mDisplayList;
}

2.) Hide the PSP stuff in your header i.e. change pspUtilityMsgDialogParams params; -> void* mParams; and cast it in your implementation.

In my project all headers are multi platform (and most cpp files), if some code relies on the PSP or Windows I postfix the cpp file with PSP or Win32. i.e.
File.h // global multi platform header
File.cpp // Common file implementation
FilePSP.cpp // PSP specific file implementation i.e. calls to sceIoOpen()/sceIORead() etc.
FileWin32.cpp // Windows specific file implementation i.e. calls to FileOpen(), etc

[EDIT]
@Arshia001

...why don't you make them in C instead of C++?C would benefit many more people.

Let them learn C++ instead and other OO languages, in the end it will give them more benefit

Noware

[jojojoris]

@noware It seems like you know a lot about c++ and programming and stuff like that. Are you a teacher or something. (I think you would be a lot better than those at my school)

[Noware]

AlphaDingDong made a comment about me in one of his funny moods, something about a squirrel

http://www.psp-programming.com/forums/index.php/topic,4395.msg33711.html#msg33711

Noware

[jojojoris]

AlphaDingDong made a comment about me in one of his funny moods, something about a squirrel

http://www.psp-programming.com/forums/index.php/topic,4395.msg33711.html#msg33711

Noware

Don't get it Are you teacher or a coder (a coder from Sony or another game developer)

I want to become someone like you 

[Noware]

Don't get it   Are you teacher or a coder (a coder from Sony or another game developer)

I want to become someone like you

I'm a human just like you

Noware

[Arshia001]

We already know he's a coder,but as Alpha said,he's a squirrel.Don't try worming info out of him,it won't work.

Let them learn C++ instead and other OO languages, in the end it will give them more benefit

Maybe you're right...