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siberianstar
Joined: 22 Jun 2006
Posts: 70
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 Posted: Mon Jul 10, 2006 7:22 am Post subject: Loading texture GU |
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Hello,
I'm reading that texture data must be aligned to 16bytes, what means ?
| Code: |
/**
* Set current texturemap
*
* Textures may reside in main RAM, but it has a huge speed-penalty. Swizzle textures
* to get maximum speed.
*
* @note Data must be aligned to 1 quad word (16 bytes)
*
* @param mipmap - Mipmap level
* @param width - Width of texture (must be a power of 2)
* @param height - Height of texture (must be a power of 2)
* @param tbw - Texture Buffer Width (block-aligned)
* @param tbp - Texture buffer pointer (16 byte aligned)
**/
void sceGuTexImage(int mipmap, int width, int height, int tbw, const void* tbp);
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Kojima
Joined: 26 Jun 2006
Posts: 275
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| Posted: Tue Jul 11, 2006 11:52 pm Post subject: |
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It means you have to allocate your memory aligned to 16 bytes.
Do this,
void * _buf = memalign(16,TexWidth*TexHeight*3);
or similar. 16 = how many bytes to align it to.
If you need for a non dynamic allocation, use atrribute align 16 |
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