www.pudn.com > potemkin_sourceforPSP.rar > DSTexture.cpp

#include "stdafx.h" 
 
/* 
#include  
#include  
#include  
*/ 
 
#include "DSDisplay.h" 
#include "DSTexture.h" 
 
u16 lut_a3i5[256]; 
u16 lut_a5i3[256]; 
 
void TextureDecoder_Init() 
{ 
	for (int i=0; i<255; i++) 
	{ 
		int alpha = (int)((float(i>>5)/7.0f)*255.0f); 
		int intensity = (int)((float(i&0x1F)/31.0f)*255.0f); 
		lut_a3i5[i] = (alpha<<8) | intensity; 
 
		alpha = (int)((float(i>>3)/31.0f)*255.0f); 
		intensity = (int)((float(i&0x7)/7.0f)*255.0f); 
		lut_a5i3[i] = (alpha<<8) | intensity; 
	} 
} 
 
void TextureDecoder_Shutdown() 
{ 
 
} 
 
void TextureDecoder_Decode(u8 *dataptr, int format, int usize, int vsize) 
{ 
	switch (format)  
	{ 
	case TF_NONE: 
		LOG(G3D,"ERROR: Trying to decode a texture with format 0"); 
		break; 
	case TF_PALETTE_2BIT: 
		break; 
	case TF_PALETTE_4BIT: 
		break; 
	case TF_PALETTE_8BIT: 
		break; 
 
	case TF_A3I5: 
		break; 
 
	case TF_A5I3: 
		break; 
 
	case TF_COMPRESSED_4X4: 
		LOG(G3D,"Compressed textures are unsupported :("); 
		break; 
 
	case TF_DIRECT: 
		break; 
	} 
}