forums.ps2dev.org Forum Index forums.ps2dev.org
Homebrew PS2, PSP & PS3 Development Discussions
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

3d-objects on psp ... what did i miss?

 
Post new topic   Reply to topic    forums.ps2dev.org Forum Index -> PSP Development
View previous topic :: View next topic  
Author Message
LuMo



Joined: 21 Aug 2005
Posts: 410
Location: Austria
PostPosted: Mon Jan 02, 2006 12:50 am    Post subject: 3d-objects on psp ... what did i miss? Reply with quote
hi there!
i tried to bring some models from pc to psp;
my first try was an rotating triangle, which worked really nice...
furter i try to load an model in my own format to psp...
the loading works fine (tested on pc and put out to screen[coordinates etc...])
when i put my code on psp it turns off.

here is my code; no clue whats wrong [noob]

Code:

#include <pspkernel.h>
#include <pspiofilemgr.h> //new
#include <malloc.h>
#include <pspdisplay.h>
#include <pspdebug.h>
#include <pspctrl.h>

#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <string.h>

#include <pspgu.h>
#include <pspgum.h>

PSP_MODULE_INFO("3D Mesh Test", 0, 1, 1);
PSP_MAIN_THREAD_ATTR(THREAD_ATTR_USER);

#define printf   pspDebugScreenPrintf

#define BUF_WIDTH (512)
#define SCR_WIDTH (480)
#define SCR_HEIGHT (272)
#define PIXEL_SIZE (4) /* change this if you change to another screenmode */
#define FRAME_SIZE (BUF_WIDTH * SCR_HEIGHT * PIXEL_SIZE)
#define ZBUF_SIZE (BUF_WIDTH SCR_HEIGHT * 2) /* zbuffer seems to be 16-bit? */


struct Vertex
{
   float u, v; //static UV-texture
   unsigned int color;// = 0xff7f0000; // AABBGGRR
   float x,y,z;
};

struct Point
{
   float x,y,z;
};


static unsigned int __attribute__((aligned(16))) list[262144];
unsigned short __attribute__((aligned(16))) *faces;
struct Point __attribute__((aligned(16))) *points;
struct Vertex __attribute__((aligned(16))) *vertices;
// add coloredpoints at v2
int SetupCallbacks();


int main(int argc, char* argv[])
{
   SceCtrlData pad;
   SetupCallbacks();


   /*
    load model code is here...
    which works fine
   */
   
   
   sceKernelDcacheWritebackAll();
   fclose(fd);


   // setup ctrl
   sceCtrlSetSamplingCycle(0);
   sceCtrlSetSamplingMode(PSP_CTRL_MODE_ANALOG);

   float rx = 0;
   float ry = 0;
   float rz = 0;
   float pz = -20;
   float px = 0;

   // setup GU
   sceGuInit();
   sceGuStart(GU_DIRECT,list);
   sceGuDrawBuffer(GU_PSM_8888,(void*)0,BUF_WIDTH);
   sceGuDispBuffer(SCR_WIDTH,SCR_HEIGHT,(void*)0x88000,BUF_WIDTH);
   sceGuDepthBuffer((void*)0x110000,BUF_WIDTH);
   sceGuOffset(2048 - (SCR_WIDTH/2),2048 - (SCR_HEIGHT/2));
   sceGuViewport(2048,2048,SCR_WIDTH,SCR_HEIGHT);
   sceGuDepthRange(0xc350,0x2710);
   sceGuScissor(0,0,SCR_WIDTH,SCR_HEIGHT);
   sceGuEnable(GU_SCISSOR_TEST);
   sceGuDepthFunc(GU_GEQUAL);
   sceGuEnable(GU_DEPTH_TEST);
   sceGuFrontFace(GU_CCW);
   sceGuShadeModel(GU_SMOOTH);
   sceGuEnable(GU_CULL_FACE);
   sceGuEnable(GU_TEXTURE_2D);
   sceGuEnable(GU_CLIP_PLANES);
   sceGuFinish();
   sceGuSync(0,0);

   sceDisplayWaitVblankStart();
   sceGuDisplay(GU_TRUE);

   // run sample

   for(;;)
   {
      sceCtrlReadBufferPositive(&pad, 1);
      if(pad.Buttons & PSP_CTRL_CIRCLE) break;

      sceGuStart(GU_DIRECT,list);

      // clear screen
      sceGuClearColor(0xff000000);
      sceGuClearDepth(0);
      sceGuClear(GU_COLOR_BUFFER_BIT|GU_DEPTH_BUFFER_BIT);

      // setup matrices for cube
      sceGumMatrixMode(GU_PROJECTION);
      sceGumLoadIdentity();
      sceGumPerspective(75.0f,16.0f/9.0f,0.5f,1000.0f);
      sceGumMatrixMode(GU_VIEW);
      sceGumLoadIdentity();
      sceGumMatrixMode(GU_MODEL);
      sceGumLoadIdentity();

      /* some pad movement here */
      ScePspFVector3 pos = { px, 0, pz };
      ScePspFVector3 rot = { rx * 1.00f * (M_PI/180.0f), ry * 1.00f * (M_PI/180.0f), rz * (M_PI/180.0f)};
      sceGumRotateXYZ(&rot);
      sceGumTranslate(&pos);

      // draw cube
      sceGumDrawArray(GU_TRIANGLES,GU_INDEX_16BIT|GU_NORMAL_32BITF|GU_VERTEX_32BITF|GU_TRANSFORM_3D,number_of_faces*3,faces,vertices);

      sceGuFinish();

      sceGuSync(0,0);
      sceDisplayWaitVblankStart();
      sceGuSwapBuffers();
   }

   sceGuTerm();

   sceKernelExitGame();
   return 0;
}

/* Exit callback */
int exit_callback(int arg1, int arg2, void *common)
{
   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, 0, 0);
   if(thid >= 0)
   {
      sceKernelStartThread(thid, 0, 0);
   }

   return thid;
}



further THIS is my makefile:
Code:

TARGET = mymeshtest
OBJS = mymeshtest.o

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

LIBDIR =
LDFLAGS =
LIBS= -lpspgum -lpspgu -lm

EXTRA_TARGETS = EBOOT.PBP
PSP_EBOOT_TITLE = 3dloadtest

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



thanks in advance
lumo
_________________
"Good artists copy, great artists steal."
Pablo Picasso
go2lumo.com
Back to top
View user's profile Send private message Visit poster's website
subbie



Joined: 05 May 2005
Posts: 122
PostPosted: Wed Jan 04, 2006 3:40 am    Post subject: Reply with quote
Not sure what is causing the crash but there is a bug in your draw.

struct Vertex
{
float u, v; //static UV-texture
unsigned int color;// = 0xff7f0000; // AABBGGRR
float x,y,z;
};


sceGumDrawArray(GU_TRIANGLES,GU_INDEX_16BIT|GU_NORMAL_32BITF|GU_VERTEX_32BITF|GU_TRANSFORM_3D,number_of_faces*3,faces,vertices);

Based on your Vertex format. Your flags should be "GU_INDEX_16BIT|GU_TEXTURE_32BITF|GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D". The flags help in telling it what to use and strides.

If say your vertex setup was like this.

struct Vertex
{
unsigned int color;// = 0xff7f0000; // AABBGGRR
float x,y,z;
};

your flags would be "GU_INDEX_16BIT|GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D".

There is a doc somewhere with the sdk to tell you the full order of the vertex setup if you want to add in normals or etc.
Back to top
View user's profile Send private message
LuMo



Joined: 21 Aug 2005
Posts: 410
Location: Austria
PostPosted: Wed Jan 04, 2006 3:51 am    Post subject: Reply with quote
"doc somewhere" ... thats my problem i was not able to find it
i tried your:
"GU_INDEX_16BIT|GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D"-flag with my struct:
Code:
struct Vertex
{
   unsigned int color;// = 0xff7f0000; //static AABBGGRR
   float x,y,z;
};

does not compile...
brings me the following error:
Quote:
/usr/local/pspdev/psp/sdk/include/pspgum.h:20: error: too few arguments to funct
ion 'void sceGumDrawArray(int, int, int, const void*, const void*)'
mymeshtest.cpp:218: error: at this point in file
make: *** [mymeshtest.o] Error 1


greets
lumo
_________________
"Good artists copy, great artists steal."
Pablo Picasso
go2lumo.com
Back to top
View user's profile Send private message Visit poster's website
subbie



Joined: 05 May 2005
Posts: 122
PostPosted: Wed Jan 04, 2006 6:32 am    Post subject: Reply with quote
LuMo wrote:
"doc somewhere" ... thats my problem i was not able to find it
i tried your:
"GU_INDEX_16BIT|GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D"-flag with my struct:
Code:
struct Vertex
{
   unsigned int color;// = 0xff7f0000; //static AABBGGRR
   float x,y,z;
};

does not compile...
brings me the following error:
Quote:
/usr/local/pspdev/psp/sdk/include/pspgum.h:20: error: too few arguments to funct
ion 'void sceGumDrawArray(int, int, int, const void*, const void*)'
mymeshtest.cpp:218: error: at this point in file
make: *** [mymeshtest.o] Error 1


greets
lumo


could you please copy and paste the exact source as there is probably a miss type.
Back to top
View user's profile Send private message
nullp01nter



Joined: 04 Jan 2006
Posts: 26
Location: Saxony/Germany
PostPosted: Wed Jan 04, 2006 7:54 am    Post subject: Reply with quote
@LuMo:Sounds like you copied "GU_INDEX_16BIT|GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D" as the _only_ parameter to the function. You have to keep the other parameters.
Try this:
Code:
sceGumDrawArray(GU_TRIANGLES,
        GU_INDEX_16BIT|GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_3D,
        number_of_faces*3,
        faces,
        vertices);


Hope this helps.

Thoralt
Back to top
View user's profile Send private message
LuMo



Joined: 21 Aug 2005
Posts: 410
Location: Austria
PostPosted: Wed Jan 04, 2006 11:02 pm    Post subject: Reply with quote
still crashes...
possibly i have an error in the way i try to display it...
i do not want to publish the code right now, until its done (and working)
so if anyone is willed to help me bugfixing i will give code away to him;
(i really want to get the code working soon cause i already bugged around with this for days now)
thanks in advance
lumo
_________________
"Good artists copy, great artists steal."
Pablo Picasso
go2lumo.com
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    forums.ps2dev.org Forum Index -> PSP Development All times are GMT + 10 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group