${CMAKE_CURRENT_SOURCE_DIR}/src/blue_noise.cpp
${CMAKE_CURRENT_SOURCE_DIR}/src/image.cpp
${CMAKE_CURRENT_SOURCE_DIR}/src/main.cpp
+ ${CMAKE_CURRENT_SOURCE_DIR}/src/arg_parse.cpp
)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wpedantic")
--- /dev/null
+#include "arg_parse.hpp"
+
+#include <cstring>
+#include <iostream>
+
+Args::Args()
+ : generate_blue_noise_(false),
+ use_opencl_(true),
+ overwrite_file_(false),
+ blue_noise_size_(32),
+ threads_(4),
+ output_filename_("output.png") {}
+
+void Args::DisplayHelp() {
+ std::cout
+ << "[-h | --help] [-b <size> | --blue-noise <size>] [--usecl | "
+ "--nousecl]\n"
+ " -h | --help\t\t\t\tDisplay this help text\n"
+ " -b <size> | --blue-noise <size>\tGenerate blue noise square with "
+ "size\n"
+ " --usecl | --nousecl\t\t\tUse/Disable OpenCL (enabled by default)\n"
+ " -t <int> | --threads <int>\t\tUse CPU thread count when not using "
+ "OpenCL\n"
+ " -o <filelname> | --output <filename>\tOutput filename to use\n"
+ " --overwrite\t\t\t\tEnable overwriting of file (default disabled)\n";
+}
+
+bool Args::ParseArgs(int argc, char **argv) {
+ --argc;
+ ++argv;
+ while (argc > 0) {
+ if (std::strcmp(argv[0], "-h") == 0 ||
+ std::strcmp(argv[0], "--help") == 0) {
+ DisplayHelp();
+ return true;
+ } else if (std::strcmp(argv[0], "--usecl") == 0) {
+ use_opencl_ = true;
+ } else if (std::strcmp(argv[0], "--nousecl") == 0) {
+ use_opencl_ = false;
+ } else if (std::strcmp(argv[0], "--overwrite") == 0) {
+ overwrite_file_ = true;
+ } else if (argc > 1 && (std::strcmp(argv[0], "-b") == 0 ||
+ std::strcmp(argv[0], "--blue-noise") == 0)) {
+ generate_blue_noise_ = true;
+ blue_noise_size_ = std::strtoul(argv[1], nullptr, 10);
+ if (blue_noise_size_ == 0) {
+ std::cout << "ERROR: Failed to parse size for blue-noise" << std::endl;
+ generate_blue_noise_ = false;
+ }
+ --argc;
+ ++argv;
+ } else if (argc > 1 && (std::strcmp(argv[0], "-t") == 0 ||
+ std::strcmp(argv[0], "--threads") == 0)) {
+ threads_ = std::strtoul(argv[1], nullptr, 10);
+ if (threads_ == 0) {
+ std::cout << "ERROR: Failed to parse thread count, using 4 by default"
+ << std::endl;
+ threads_ = 4;
+ }
+ --argc;
+ ++argv;
+ } else if (argc > 1 && (std::strcmp(argv[0], "-o") == 0 ||
+ std::strcmp(argv[0], "--output") == 0)) {
+ output_filename_ = std::string(argv[1]);
+ --argc;
+ ++argv;
+ } else {
+ std::cout << "WARNING: Ignoring invalid input \"" << argv[0] << "\""
+ << std::endl;
+ }
+ --argc;
+ ++argv;
+ }
+
+ return false;
+}
--- /dev/null
+#ifndef DITHERING_ARG_PARSE_HPP_
+#define DITHERING_ARG_PARSE_HPP_
+
+#include <string>
+
+struct Args {
+ Args();
+
+ static void DisplayHelp();
+
+ /// Returns true if help was printed
+ bool ParseArgs(int argc, char **argv);
+
+ bool generate_blue_noise_;
+ bool use_opencl_;
+ bool overwrite_file_;
+ unsigned int blue_noise_size_;
+ unsigned int threads_;
+ std::string output_filename_;
+};
+
+#endif
#ifndef NDEBUG
internal::write_filter(filter_out, width, "filter_out_start.pgm");
#endif
+ std::cout << "Begin BinaryArray generation loop\n";
while(true) {
-//#ifndef NDEBUG
+#ifndef NDEBUG
// if(++iterations % 10 == 0) {
printf("Iteration %d\n", ++iterations);
// }
-//#endif
+#endif
// get filter values
internal::compute_filter(pbp, width, height, count, filter_size,
filter_out, precomputed.get(), threads);
std::vector<bool> pbp_copy(pbp);
std::cout << "Ranking minority pixels...\n";
for (unsigned int i = pixel_count; i-- > 0;) {
+#ifndef NDEBUG
std::cout << i << ' ';
+#endif
internal::compute_filter(pbp, width, height, count, filter_size,
filter_out, precomputed.get(), threads);
std::tie(std::ignore, max) = internal::filter_minmax(filter_out, pbp);
}
std::cout << "\nRanking remainder of first half of pixels...\n";
for (unsigned int i = pixel_count; i < (unsigned int)((count + 1) / 2); ++i) {
+#ifndef NDEBUG
std::cout << i << ' ';
+#endif
internal::compute_filter(pbp, width, height, count, filter_size,
filter_out, precomputed.get(), threads);
std::tie(min, std::ignore) = internal::filter_minmax(filter_out, pbp);
std::cout << "\nRanking last half of pixels...\n";
std::vector<bool> reversed_pbp(pbp);
for (unsigned int i = (count + 1) / 2; i < (unsigned int)count; ++i) {
+#ifndef NDEBUG
std::cout << i << ' ';
+#endif
for(unsigned int i = 0; i < pbp.size(); ++i) {
reversed_pbp[i] = !pbp[i];
}
};
{
+#ifndef NDEBUG
printf("Inserting %d pixels into image of max count %d\n", pixel_count, count);
// generate image from randomized pbp
-#ifndef NDEBUG
FILE *random_noise_image = fopen("random_noise.pbm", "w");
fprintf(random_noise_image, "P1\n%d %d\n", width, height);
for(int y = 0; y < height; ++y) {
int iterations = 0;
+ std::cout << "Begin BinaryArray generation loop\n";
while(true) {
+#ifndef NDEBUG
printf("Iteration %d\n", ++iterations);
+#endif
if(!get_filter()) {
std::cerr << "OpenCL: Failed to execute do_filter\n";
}
if(iterations % 100 == 0) {
+#ifndef NDEBUG
std::cout << "max was " << max << ", second_min is " << second_min
<< std::endl;
// generate blue_noise image from pbp
-#ifndef NDEBUG
FILE *blue_noise_image = fopen("blue_noise.pbm", "w");
fprintf(blue_noise_image, "P1\n%d %d\n", width, height);
for(int y = 0; y < height; ++y) {
#endif
std::cout << "Generating dither_array...\n";
+#ifndef NDEBUG
std::unordered_set<unsigned int> set;
+#endif
std::vector<unsigned int> dither_array(count, 0);
int min, max;
{
std::vector<bool> pbp_copy(pbp);
std::cout << "Ranking minority pixels...\n";
for (unsigned int i = pixel_count; i-- > 0;) {
+#ifndef NDEBUG
std::cout << i << ' ';
+#endif
get_filter();
std::tie(std::ignore, max) = internal::filter_minmax(filter, pbp);
pbp.at(max) = false;
dither_array.at(max) = i;
+#ifndef NDEBUG
if (set.find(max) != set.end()) {
std::cout << "\nWARNING: Reusing index " << max << '\n';
} else {
set.insert(max);
}
+#endif
}
pbp = pbp_copy;
#ifndef NDEBUG
}
std::cout << "\nRanking remainder of first half of pixels...\n";
for (unsigned int i = pixel_count; i < (unsigned int)((count + 1) / 2); ++i) {
+#ifndef NDEBUG
std::cout << i << ' ';
+#endif
get_filter();
std::tie(min, std::ignore) = internal::filter_minmax(filter, pbp);
pbp.at(min) = true;
dither_array.at(min) = i;
+#ifndef NDEBUG
if (set.find(min) != set.end()) {
std::cout << "\nWARNING: Reusing index " << min << '\n';
} else {
set.insert(min);
}
+#endif
}
#ifndef NDEBUG
{
std::cout << "\nRanking last half of pixels...\n";
reversed_pbp = true;
for (unsigned int i = (count + 1) / 2; i < (unsigned int)count; ++i) {
+#ifndef NDEBUG
std::cout << i << ' ';
+#endif
get_filter();
std::tie(std::ignore, max) = internal::filter_minmax(filter, pbp);
pbp.at(max) = true;
dither_array.at(max) = i;
+#ifndef NDEBUG
if (set.find(max) != set.end()) {
std::cout << "\nWARNING: Reusing index " << max << '\n';
} else {
set.insert(max);
}
+#endif
}
std::cout << std::endl;
}
}
+#ifndef NDEBUG
std::cout << "rangeToBl: Got min == " << min << " and max == " << max << std::endl;
+#endif
max -= min;
-#include "blue_noise.hpp"
-
#include <iostream>
+#include <cstdio>
+
+#include "arg_parse.hpp"
+#include "blue_noise.hpp"
int main(int argc, char **argv) {
- std::cout << "Trying blue_noise..." << std::endl;
- image::Bl bl = dither::blue_noise(32, 32, 15, false);
- if(!bl.writeToFile(image::file_type::PNG, true, "blueNoiseOut.png")) {
- std::cout << "ERROR: Failed to write result to file\n";
- std::cout << "size is " << bl.getSize() << ", width is "
- << bl.getWidth() << ", height is " << bl.getHeight()
- << std::endl;
+ Args args;
+ if(args.ParseArgs(argc, argv)) {
+ return 0;
+ }
+
+ // validation
+ if (args.generate_blue_noise_) {
+ if (args.output_filename_.empty()) {
+ std::cout << "ERROR: Cannot generate blue-noise, output filename is not specified"
+ << std::endl;
+ Args::DisplayHelp();
+ return 1;
+ } else if (args.blue_noise_size_ < 16) {
+ std::cout << "ERROR: blue-noise size is too small"
+ << std::endl;
+ Args::DisplayHelp();
+ return 1;
+ } else if (!args.overwrite_file_) {
+ FILE *file = std::fopen(args.output_filename_.c_str(), "r");
+ if (file) {
+ std::fclose(file);
+ std::cout << "ERROR: overwrite not specified, but filename exists"
+ << std::endl;
+ Args::DisplayHelp();
+ return 1;
+ }
+ }
+ } else {
+ std::cout << "ERROR: No operation specified\n";
+ Args::DisplayHelp();
+ }
+
+ if (args.generate_blue_noise_) {
+ std::cout << "Generating blue_noise..." << std::endl;
+ image::Bl bl = dither::blue_noise(args.blue_noise_size_,
+ args.blue_noise_size_,
+ args.threads_,
+ args.use_opencl_);
+ if(!bl.writeToFile(image::file_type::PNG, args.overwrite_file_, args.output_filename_)) {
+ std::cout << "ERROR: Failed to write blue-noise to file\n";
+ }
}
return 0;
projects / blue_noise_generation / commitdiff