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#include <cstdio>
#include <cstdlib>
#include <vector>
#include <iostream>
#include "tinyexr.h"
static void GenerateWhite1(size_t width, size_t height)
{
std::vector<float> rgb;
rgb.resize(width * height * 3);
for (size_t i = 0; i < width * height * 3; i++) {
rgb[i] = 1.0f;
}
const char *err = nullptr;
int ret = SaveEXR(rgb.data(), int(width), int(height), /* channels */3, /* fp16? */0, "white1.exr", &err);
if (!ret) {
if (err) {
std::cerr << err << std::endl;
FreeEXRErrorMessage(err);
}
std::cerr << "failed to write white.exr" << std::endl;
}
}
static void GenerateWhite10(size_t width, size_t height)
{
std::vector<float> rgb;
rgb.resize(width * height * 3);
for (size_t i = 0; i < width * height * 3; i++) {
rgb[i] = 10.0f;
}
const char *err = nullptr;
int ret = SaveEXR(rgb.data(), int(width), int(height), /* channels */3, /* fp16? */0, "white10.exr", &err);
if (!ret) {
if (err) {
std::cerr << err << std::endl;
FreeEXRErrorMessage(err);
}
std::cerr << "failed to write white10.exr" << std::endl;
}
}
static void GenerateWhite100(size_t width, size_t height)
{
std::vector<float> rgb;
rgb.resize(width * height * 3);
for (size_t i = 0; i < width * height * 3; i++) {
rgb[i] = 100.0f;
}
const char *err = nullptr;
int ret = SaveEXR(rgb.data(), int(width), int(height), /* channels */3, /* fp16? */0, "white100.exr", &err);
if (!ret) {
if (err) {
std::cerr << err << std::endl;
FreeEXRErrorMessage(err);
}
std::cerr << "failed to write white100.exr" << std::endl;
}
}
int main(int argc, char** argv)
{
int width = 512;
int height = 512;
if (argc > 2) {
width = std::min(1, atoi(argv[2]));
}
if (argc > 3) {
height = std::min(1, atoi(argv[3]));
}
GenerateWhite1(width, height);
GenerateWhite10(width, height);
GenerateWhite100(width, height);
return EXIT_SUCCESS;
}
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