void Texture::Load(const u8 *file )
{
header = (Texture::Header *) file;
if (header->magic != MAGIC)
return; // bad header
u32 texture_count = header->num_textures;
// only support a single texture
if (texture_count > 1)
{
// Never saw it happen
texture_count = 1;
gprintf("texture count > 1\n");
}
// read textures
const TPL_Texture *tpl_list = (const TPL_Texture *) (file + header->header_size);
for(u32 i = 0; i < texture_count; i++)
{
// seek to texture header
const TPL_Texture_Header *texture = (const TPL_Texture_Header *) (file + tpl_list[i].texture_offset);
u8 mipmap = 0;
u8 bias_clamp = 0;
if(texture->max_lod > 0)
mipmap = GX_TRUE;
if(texture->lod_bias > 0.0f)
bias_clamp = GX_ENABLE;
// texture data
u8 *texture_data = (u8 *) (file + texture->offset);
// seek to/read palette header
if (tpl_list[i].palette_offset != 0)
{
palette = (TPL_Palette_Header *) (file + tpl_list[i].palette_offset);
// load the texture
GX_InitTexObjCI(&texobj, texture_data, texture->width, texture->height, texture->format,
texture->wrap_s, texture->wrap_t, mipmap, 0);
}
else
{
// load the texture
GX_InitTexObj(&texobj, texture_data, texture->width, texture->height, texture->format,
texture->wrap_s, texture->wrap_t, mipmap);
}
// filter mode
if(mipmap)
{
GX_InitTexObjLOD(&texobj, texture->min, texture->mag, texture->min_lod, texture->max_lod,
texture->lod_bias, bias_clamp, bias_clamp, texture->edge_lod);
}
}
loaded = true;
}
Image::Image(void* texture, u16 wd, u16 ht, u8 fmt, u8 wrap_s, u8 wrap_t, u8 mipmap, void* lut, u8 lut_fmt, u8 lut_name, u16 lut_size)
: img_ptr(texture),
tlut_ptr(lut),
width(wd),
height(ht),
format(fmt),
tlut_format(lut_fmt),
tlut_name(lut_name),
tlut_size(lut_size)
{
GX_InitTlutObj(&tlut_obj, tlut_ptr, tlut_format, tlut_size);
GX_InitTexObjCI(&obj, img_ptr, width, height, format, wrap_s, wrap_t, mipmap, tlut_name);
}
