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