/**
* ファイルロード[拡張子自動判別]
* @param filepath ファイルフルパス
* @retval true 成功
* @retval false 失敗
*/
bool Load(const char* filename)
{
bool result = false;
m_image.Clear();
std::string path(filename);
std::string::size_type pos = path.rfind('.');
if (pos != std::string::npos)
{
const std::string ext = make_lowercase(path.substr(pos+1));
if (ext == "png")
{
result = LoadPNG(path);
}
else if (ext == "jpg" || ext == "jpeg")
{
result = LoadJPG(path);
}
else if (ext == "tga")
{
result = LoadTGA(path);
}
else if (ext == "hdr")
{
result = LoadHDR(path);
}
else if (ext == "exr" || ext == "EXR")
{
result = LoadEXR(path);
}
}
return result;
}
void InfiniteAreaLight::readExr(std::string const& filename) {
// std::cout << "Reading EXR: " << filename << std::endl;
const char* err = nullptr;
int ret = LoadEXR(&data, &width, &height, filename.c_str(), &err);
if (ret != TINYEXR_SUCCESS) {
if (err) {
fprintf(stderr, "ERR : %s\n", err);
FreeEXRErrorMessage(err); // release memory of error message.
}
}
}
int main(int argc, char** argv)
{
float *rgba;
const char* err;
int width;
int height;
if (argc < 2) {
return EXIT_FAILURE;
}
int ret = LoadEXR(&rgba, &width, &height, argv[1], &err);
return ret;
}
static RGBSpectrum *ReadImageEXR(const std::string &name, int *width,
int *height) {
float *pixels;
const char *err;
if (LoadEXR(&pixels, width, height, name.c_str(), &err)) {
Error("Unable to read \"%s\": %s", name.c_str(), err);
return nullptr;
}
RGBSpectrum *ret = new RGBSpectrum[*width * *height];
int rOffset = 0;
for (int y = 0; y < *height; ++y) {
int pOffset = (*height - 1 - y) * *width;
for (int x = 0; x < *width; ++x, ++pOffset, ++rOffset)
ret[rOffset] = RGBSpectrum::FromRGB(&pixels[4 * pOffset]);
}
return ret;
}
