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// File: crn_texture_file_types.cpp
// See Copyright Notice and license at the end of inc/crnlib.h
#include "crn_core.h"
#include "crn_texture_file_types.h"
#include "crn_file_utils.h"
namespace crnlib {
const char* texture_file_types::get_extension(format fmt) {
CRNLIB_ASSERT(fmt < cNumFileFormats);
if (fmt >= cNumFileFormats)
return NULL;
static const char* extensions[cNumFileFormats] =
{
"dds",
"crn",
"ktx",
"tga",
"png",
"jpg",
"jpeg",
"bmp",
"gif",
"tif",
"tiff",
"ppm",
"pgm",
"psd",
"jp2",
"<clipboard>",
"<dragdrop>"};
return extensions[fmt];
}
texture_file_types::format texture_file_types::determine_file_format(const char* pFilename) {
dynamic_string ext;
if (!file_utils::split_path(pFilename, NULL, NULL, NULL, &ext))
return cFormatInvalid;
if (ext.is_empty())
return cFormatInvalid;
if (ext[0] == '.')
ext.right(1);
for (uint i = 0; i < cNumFileFormats; i++)
if (ext == get_extension(static_cast<format>(i)))
return static_cast<format>(i);
return cFormatInvalid;
}
bool texture_file_types::supports_mipmaps(format fmt) {
switch (fmt) {
case cFormatCRN:
case cFormatDDS:
case cFormatKTX:
return true;
default:
break;
}
return false;
}
bool texture_file_types::supports_alpha(format fmt) {
switch (fmt) {
case cFormatJPG:
case cFormatJPEG:
case cFormatGIF:
case cFormatJP2:
return false;
default:
break;
}
return true;
}
const char* get_texture_type_desc(texture_type t) {
switch (t) {
case cTextureTypeUnknown:
return "Unknown";
case cTextureTypeRegularMap:
return "2D map";
case cTextureTypeNormalMap:
return "Normal map";
case cTextureTypeVerticalCrossCubemap:
return "Vertical Cross Cubemap";
case cTextureTypeCubemap:
return "Cubemap";
default:
break;
}
CRNLIB_ASSERT(false);
return "?";
}
} // namespace crnlib
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