SDL render

[coldev]

sdl render , with problems
http://fenixworld.se32.com/e107_plugins ... 2.m8ee.zip

draw colors not correctly :
please help us..

this is code :
---------------------------------



void RecuperarSuperficieDibujo(char *puntero, int pitch)//recupera el render y lo dibuja en SDL
{

int ancho= Mitextura->getSize ().Width;
int alto= Mitextura->getSize ().Height;


s16 *MiZbuffer=(s16 *)Mitextura->lock ();

/*
int x,y;
for (x=1;x<ancho;x++)
for (y=1;y<alto;y++)
((s16 *)puntero)[x + pitch*y] = A1R5G5B5toA8R8G8B8(((s16*)MiZbuffer)[y*ancho + x]);
*/

int destPitch = pitch;
//s16* destData = reinterpret_cast<s16*>(puntero);
char *destData = (puntero);

for (int x=0; x<ancho; ++x)
for (int y=0; y<alto; ++y)
if (x < ancho && y < alto)
{
s16 c = MiZbuffer[y*ancho +x];
destData[y* destPitch + x] =
((c >> 10)&0x1F)<<11 |
((c >> 5)&0x1F) << 6 |
((c)&0x1F);
}


Mitextura->unlock ();
}

[hybrid]

What?
Maybe try to explain what your problem is, what the app should do and you translate the code comments. I'm not able to help here with the information as is.

[vitek]

Looks like he's trying to convert A1R5G5B5 data to R5G6B5. The big problem is that the destData pointer is only a byte and he's stuffing 16 bits of data in.

[hybrid]

Ok, in that case use 2*x to add.But be aware that this routine does not check the texture format, so you might meet very different formats as well.

[coldev]

Ok, in that case use 2*x to add.But be aware that this routine does not check the texture format, so you might meet very different formats as well.

in that part ? please write the code ..

thank you very much.

void Irrch2SDL(char *mypointer, int pitch)//draw in sdl
{

int width= Mitexture->getSize ().Width;
int height= Mitexture->getSize ().Height;


s16 *MiZbuffer=(s16 *)Mitexture->lock ();

/*
int x,y;
for (x=1;x<ancho;x++)
for (y=1;y<alto;y++)
((s16 *)mipointer)[x + pitch*y] = A1R5G5B5toA8R8G8B8(((s16*)MiZbuffer)[y*ancho + x]);
*/

int destPitch = pitch;
//s16* destData = reinterpret_cast<s16*>(puntero);
char *destData = (mypointer);

for (int x=0; x<width; ++x)
for (int y=0; y<height; ++y)
if (x < width && y < height)
{
s16 c = MiZbuffer[y*width +x];
destData[y* destPitch + x] =
((c >> 10)&0x1F)<<11 |
((c >> 5)&0x1F) << 6 |
((c)&0x1F);
}


Mitexture->unlock ();
}

[hybrid]

The very last use of x, but destPitch has to be correct also. Better use the s16* as currently commented out. Or check the ColorConverter methods available in Irrlicht. They do similar things with different byte sizes.