forked from Green-Sky/tomato
Squashed 'external/qoi/qoi/' content from commit 30d15d79b7
git-subtree-dir: external/qoi/qoi
git-subtree-split: 30d15d79b7
This commit is contained in:
610
qoibench.c
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610
qoibench.c
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@@ -0,0 +1,610 @@
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/*
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Copyright (c) 2021, Dominic Szablewski - https://phoboslab.org
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SPDX-License-Identifier: MIT
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Simple benchmark suite for png, stbi and qoi
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Requires libpng, "stb_image.h" and "stb_image_write.h"
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Compile with:
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gcc qoibench.c -std=gnu99 -lpng -O3 -o qoibench
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*/
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#include <stdio.h>
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#include <dirent.h>
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#include <png.h>
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#define STB_IMAGE_IMPLEMENTATION
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#define STBI_ONLY_PNG
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#define STBI_NO_LINEAR
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#include "stb_image.h"
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#define STB_IMAGE_WRITE_IMPLEMENTATION
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#include "stb_image_write.h"
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#define QOI_IMPLEMENTATION
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#include "qoi.h"
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// -----------------------------------------------------------------------------
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// Cross platform high resolution timer
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// From https://gist.github.com/ForeverZer0/0a4f80fc02b96e19380ebb7a3debbee5
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#include <stdint.h>
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#if defined(__linux)
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#define HAVE_POSIX_TIMER
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#include <time.h>
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#ifdef CLOCK_MONOTONIC
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#define CLOCKID CLOCK_MONOTONIC
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#else
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#define CLOCKID CLOCK_REALTIME
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#endif
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#elif defined(__APPLE__)
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#define HAVE_MACH_TIMER
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#include <mach/mach_time.h>
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#elif defined(_WIN32)
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#endif
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static uint64_t ns() {
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static uint64_t is_init = 0;
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#if defined(__APPLE__)
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static mach_timebase_info_data_t info;
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if (0 == is_init) {
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mach_timebase_info(&info);
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is_init = 1;
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}
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uint64_t now;
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now = mach_absolute_time();
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now *= info.numer;
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now /= info.denom;
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return now;
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#elif defined(__linux)
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static struct timespec linux_rate;
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if (0 == is_init) {
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clock_getres(CLOCKID, &linux_rate);
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is_init = 1;
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}
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uint64_t now;
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struct timespec spec;
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clock_gettime(CLOCKID, &spec);
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now = spec.tv_sec * 1.0e9 + spec.tv_nsec;
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return now;
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#elif defined(_WIN32)
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static LARGE_INTEGER win_frequency;
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if (0 == is_init) {
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QueryPerformanceFrequency(&win_frequency);
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is_init = 1;
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}
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LARGE_INTEGER now;
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QueryPerformanceCounter(&now);
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return (uint64_t) ((1e9 * now.QuadPart) / win_frequency.QuadPart);
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#endif
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}
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#define STRINGIFY(x) #x
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#define TOSTRING(x) STRINGIFY(x)
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#define ERROR(...) printf("abort at line " TOSTRING(__LINE__) ": " __VA_ARGS__); printf("\n"); exit(1)
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// -----------------------------------------------------------------------------
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// libpng encode/decode wrappers
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// Seriously, who thought this was a good abstraction for an API to read/write
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// images?
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typedef struct {
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int size;
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int capacity;
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unsigned char *data;
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} libpng_write_t;
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void libpng_encode_callback(png_structp png_ptr, png_bytep data, png_size_t length) {
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libpng_write_t *write_data = (libpng_write_t*)png_get_io_ptr(png_ptr);
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if (write_data->size + length >= write_data->capacity) {
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ERROR("PNG write");
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}
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memcpy(write_data->data + write_data->size, data, length);
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write_data->size += length;
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}
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void *libpng_encode(void *pixels, int w, int h, int channels, int *out_len) {
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png_structp png = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
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if (!png) {
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ERROR("png_create_write_struct");
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}
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png_infop info = png_create_info_struct(png);
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if (!info) {
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ERROR("png_create_info_struct");
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}
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if (setjmp(png_jmpbuf(png))) {
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ERROR("png_jmpbuf");
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}
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// Output is 8bit depth, RGBA format.
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png_set_IHDR(
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png,
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info,
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w, h,
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8,
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channels == 3 ? PNG_COLOR_TYPE_RGB : PNG_COLOR_TYPE_RGBA,
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PNG_INTERLACE_NONE,
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PNG_COMPRESSION_TYPE_DEFAULT,
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PNG_FILTER_TYPE_DEFAULT
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);
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png_bytep row_pointers[h];
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for(int y = 0; y < h; y++){
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row_pointers[y] = ((unsigned char *)pixels + y * w * channels);
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}
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libpng_write_t write_data = {
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.size = 0,
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.capacity = w * h * channels,
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.data = malloc(w * h * channels)
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};
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png_set_rows(png, info, row_pointers);
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png_set_write_fn(png, &write_data, libpng_encode_callback, NULL);
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png_write_png(png, info, PNG_TRANSFORM_IDENTITY, NULL);
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png_destroy_write_struct(&png, &info);
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*out_len = write_data.size;
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return write_data.data;
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}
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typedef struct {
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int pos;
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int size;
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unsigned char *data;
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} libpng_read_t;
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void png_decode_callback(png_structp png, png_bytep data, png_size_t length) {
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libpng_read_t *read_data = (libpng_read_t*)png_get_io_ptr(png);
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if (read_data->pos + length > read_data->size) {
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ERROR("PNG read %ld bytes at pos %d (size: %d)", length, read_data->pos, read_data->size);
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}
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memcpy(data, read_data->data + read_data->pos, length);
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read_data->pos += length;
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}
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void png_warning_callback(png_structp png_ptr, png_const_charp warning_msg) {
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// Ignore warnings about sRGB profiles and such.
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}
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void *libpng_decode(void *data, int size, int *out_w, int *out_h) {
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png_structp png = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, png_warning_callback);
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if (!png) {
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ERROR("png_create_read_struct");
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}
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png_infop info = png_create_info_struct(png);
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if (!info) {
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ERROR("png_create_info_struct");
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}
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libpng_read_t read_data = {
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.pos = 0,
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.size = size,
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.data = data
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};
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png_set_read_fn(png, &read_data, png_decode_callback);
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png_set_sig_bytes(png, 0);
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png_read_info(png, info);
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png_uint_32 w, h;
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int bitDepth, colorType, interlaceType;
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png_get_IHDR(png, info, &w, &h, &bitDepth, &colorType, &interlaceType, NULL, NULL);
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// 16 bit -> 8 bit
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png_set_strip_16(png);
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// 1, 2, 4 bit -> 8 bit
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if (bitDepth < 8) {
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png_set_packing(png);
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}
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if (colorType & PNG_COLOR_MASK_PALETTE) {
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png_set_expand(png);
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}
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if (!(colorType & PNG_COLOR_MASK_COLOR)) {
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png_set_gray_to_rgb(png);
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}
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// set paletted or RGB images with transparency to full alpha so we get RGBA
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if (png_get_valid(png, info, PNG_INFO_tRNS)) {
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png_set_tRNS_to_alpha(png);
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}
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// make sure every pixel has an alpha value
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if (!(colorType & PNG_COLOR_MASK_ALPHA)) {
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png_set_filler(png, 255, PNG_FILLER_AFTER);
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}
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png_read_update_info(png, info);
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unsigned char* out = malloc(w * h * 4);
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*out_w = w;
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*out_h = h;
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// png_uint_32 rowBytes = png_get_rowbytes(png, info);
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png_bytep row_pointers[h];
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for (png_uint_32 row = 0; row < h; row++ ) {
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row_pointers[row] = (png_bytep)(out + (row * w * 4));
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}
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png_read_image(png, row_pointers);
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png_read_end(png, info);
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png_destroy_read_struct( &png, &info, NULL);
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return out;
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}
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// -----------------------------------------------------------------------------
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// stb_image encode callback
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void stbi_write_callback(void *context, void *data, int size) {
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int *encoded_size = (int *)context;
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*encoded_size += size;
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// In theory we'd need to do another malloc(), memcpy() and free() here to
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// be fair to the other decode functions...
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}
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// -----------------------------------------------------------------------------
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// function to load a whole file into memory
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void *fload(const char *path, int *out_size) {
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FILE *fh = fopen(path, "rb");
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if (!fh) {
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ERROR("Can't open file");
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}
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fseek(fh, 0, SEEK_END);
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int size = ftell(fh);
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fseek(fh, 0, SEEK_SET);
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void *buffer = malloc(size);
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if (!buffer) {
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ERROR("Malloc for %d bytes failed", size);
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}
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if (!fread(buffer, size, 1, fh)) {
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ERROR("Can't read file %s", path);
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}
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fclose(fh);
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*out_size = size;
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return buffer;
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}
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// -----------------------------------------------------------------------------
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// benchmark runner
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int opt_runs = 1;
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int opt_nopng = 0;
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int opt_nowarmup = 0;
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int opt_noverify = 0;
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int opt_nodecode = 0;
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int opt_noencode = 0;
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int opt_norecurse = 0;
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int opt_onlytotals = 0;
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enum {
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LIBPNG,
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STBI,
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QOI,
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BENCH_COUNT /* must be the last element */
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};
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static const char *const lib_names[BENCH_COUNT] = {
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// NOTE: pad with spaces so everything lines up properly
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[LIBPNG] = "libpng: ",
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[STBI] = "stbi: ",
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[QOI] = "qoi: ",
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};
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typedef struct {
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uint64_t size;
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uint64_t encode_time;
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uint64_t decode_time;
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} benchmark_lib_result_t;
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typedef struct {
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int count;
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uint64_t raw_size;
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uint64_t px;
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int w;
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int h;
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benchmark_lib_result_t libs[BENCH_COUNT];
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} benchmark_result_t;
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void benchmark_print_result(benchmark_result_t res) {
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res.px /= res.count;
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res.raw_size /= res.count;
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double px = res.px;
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printf(" decode ms encode ms decode mpps encode mpps size kb rate\n");
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for (int i = 0; i < BENCH_COUNT; ++i) {
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if (opt_nopng && (i == LIBPNG || i == STBI)) {
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continue;
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}
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res.libs[i].encode_time /= res.count;
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res.libs[i].decode_time /= res.count;
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res.libs[i].size /= res.count;
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printf(
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"%s %8.1f %8.1f %8.2f %8.2f %8ld %4.1f%%\n",
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lib_names[i],
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(double)res.libs[i].decode_time/1000000.0,
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(double)res.libs[i].encode_time/1000000.0,
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(res.libs[i].decode_time > 0 ? px / ((double)res.libs[i].decode_time/1000.0) : 0),
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(res.libs[i].encode_time > 0 ? px / ((double)res.libs[i].encode_time/1000.0) : 0),
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res.libs[i].size/1024,
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((double)res.libs[i].size/(double)res.raw_size) * 100.0
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);
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}
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printf("\n");
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}
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// Run __VA_ARGS__ a number of times and measure the time taken. The first
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// run is ignored.
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#define BENCHMARK_FN(NOWARMUP, RUNS, AVG_TIME, ...) \
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do { \
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uint64_t time = 0; \
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for (int i = NOWARMUP; i <= RUNS; i++) { \
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uint64_t time_start = ns(); \
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__VA_ARGS__ \
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uint64_t time_end = ns(); \
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if (i > 0) { \
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time += time_end - time_start; \
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} \
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} \
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AVG_TIME = time / RUNS; \
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} while (0)
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benchmark_result_t benchmark_image(const char *path) {
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int encoded_png_size;
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int encoded_qoi_size;
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int w;
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int h;
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int channels;
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// Load the encoded PNG, encoded QOI and raw pixels into memory
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if(!stbi_info(path, &w, &h, &channels)) {
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ERROR("Error decoding header %s", path);
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}
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||||
|
||||
if (channels != 3) {
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channels = 4;
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}
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void *pixels = (void *)stbi_load(path, &w, &h, NULL, channels);
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void *encoded_png = fload(path, &encoded_png_size);
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void *encoded_qoi = qoi_encode(pixels, &(qoi_desc){
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.width = w,
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.height = h,
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.channels = channels,
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.colorspace = QOI_SRGB
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}, &encoded_qoi_size);
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if (!pixels || !encoded_qoi || !encoded_png) {
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ERROR("Error encoding %s", path);
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||||
}
|
||||
|
||||
// Verify QOI Output
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||||
|
||||
if (!opt_noverify) {
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||||
qoi_desc dc;
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void *pixels_qoi = qoi_decode(encoded_qoi, encoded_qoi_size, &dc, channels);
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if (memcmp(pixels, pixels_qoi, w * h * channels) != 0) {
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||||
ERROR("QOI roundtrip pixel mismatch for %s", path);
|
||||
}
|
||||
free(pixels_qoi);
|
||||
}
|
||||
|
||||
|
||||
|
||||
benchmark_result_t res = {0};
|
||||
res.count = 1;
|
||||
res.raw_size = w * h * channels;
|
||||
res.px = w * h;
|
||||
res.w = w;
|
||||
res.h = h;
|
||||
|
||||
|
||||
// Decoding
|
||||
|
||||
if (!opt_nodecode) {
|
||||
if (!opt_nopng) {
|
||||
BENCHMARK_FN(opt_nowarmup, opt_runs, res.libs[LIBPNG].decode_time, {
|
||||
int dec_w, dec_h;
|
||||
void *dec_p = libpng_decode(encoded_png, encoded_png_size, &dec_w, &dec_h);
|
||||
free(dec_p);
|
||||
});
|
||||
|
||||
BENCHMARK_FN(opt_nowarmup, opt_runs, res.libs[STBI].decode_time, {
|
||||
int dec_w, dec_h, dec_channels;
|
||||
void *dec_p = stbi_load_from_memory(encoded_png, encoded_png_size, &dec_w, &dec_h, &dec_channels, 4);
|
||||
free(dec_p);
|
||||
});
|
||||
}
|
||||
|
||||
BENCHMARK_FN(opt_nowarmup, opt_runs, res.libs[QOI].decode_time, {
|
||||
qoi_desc desc;
|
||||
void *dec_p = qoi_decode(encoded_qoi, encoded_qoi_size, &desc, 4);
|
||||
free(dec_p);
|
||||
});
|
||||
}
|
||||
|
||||
|
||||
// Encoding
|
||||
if (!opt_noencode) {
|
||||
if (!opt_nopng) {
|
||||
BENCHMARK_FN(opt_nowarmup, opt_runs, res.libs[LIBPNG].encode_time, {
|
||||
int enc_size;
|
||||
void *enc_p = libpng_encode(pixels, w, h, channels, &enc_size);
|
||||
res.libs[LIBPNG].size = enc_size;
|
||||
free(enc_p);
|
||||
});
|
||||
|
||||
BENCHMARK_FN(opt_nowarmup, opt_runs, res.libs[STBI].encode_time, {
|
||||
int enc_size = 0;
|
||||
stbi_write_png_to_func(stbi_write_callback, &enc_size, w, h, channels, pixels, 0);
|
||||
res.libs[STBI].size = enc_size;
|
||||
});
|
||||
}
|
||||
|
||||
BENCHMARK_FN(opt_nowarmup, opt_runs, res.libs[QOI].encode_time, {
|
||||
int enc_size;
|
||||
void *enc_p = qoi_encode(pixels, &(qoi_desc){
|
||||
.width = w,
|
||||
.height = h,
|
||||
.channels = channels,
|
||||
.colorspace = QOI_SRGB
|
||||
}, &enc_size);
|
||||
res.libs[QOI].size = enc_size;
|
||||
free(enc_p);
|
||||
});
|
||||
}
|
||||
|
||||
free(pixels);
|
||||
free(encoded_png);
|
||||
free(encoded_qoi);
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
void benchmark_directory(const char *path, benchmark_result_t *grand_total) {
|
||||
DIR *dir = opendir(path);
|
||||
if (!dir) {
|
||||
ERROR("Couldn't open directory %s", path);
|
||||
}
|
||||
|
||||
struct dirent *file;
|
||||
|
||||
if (!opt_norecurse) {
|
||||
for (int i = 0; (file = readdir(dir)) != NULL; i++) {
|
||||
if (
|
||||
file->d_type & DT_DIR &&
|
||||
strcmp(file->d_name, ".") != 0 &&
|
||||
strcmp(file->d_name, "..") != 0
|
||||
) {
|
||||
char subpath[1024];
|
||||
snprintf(subpath, 1024, "%s/%s", path, file->d_name);
|
||||
benchmark_directory(subpath, grand_total);
|
||||
}
|
||||
}
|
||||
rewinddir(dir);
|
||||
}
|
||||
|
||||
benchmark_result_t dir_total = {0};
|
||||
|
||||
int has_shown_head = 0;
|
||||
for (int i = 0; (file = readdir(dir)) != NULL; i++) {
|
||||
if (strcmp(file->d_name + strlen(file->d_name) - 4, ".png") != 0) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!has_shown_head) {
|
||||
has_shown_head = 1;
|
||||
printf("## Benchmarking %s/*.png -- %d runs\n\n", path, opt_runs);
|
||||
}
|
||||
|
||||
char *file_path = malloc(strlen(file->d_name) + strlen(path)+8);
|
||||
sprintf(file_path, "%s/%s", path, file->d_name);
|
||||
|
||||
benchmark_result_t res = benchmark_image(file_path);
|
||||
|
||||
if (!opt_onlytotals) {
|
||||
printf("## %s size: %dx%d\n", file_path, res.w, res.h);
|
||||
benchmark_print_result(res);
|
||||
}
|
||||
|
||||
free(file_path);
|
||||
|
||||
dir_total.count++;
|
||||
dir_total.raw_size += res.raw_size;
|
||||
dir_total.px += res.px;
|
||||
for (int i = 0; i < BENCH_COUNT; ++i) {
|
||||
dir_total.libs[i].encode_time += res.libs[i].encode_time;
|
||||
dir_total.libs[i].decode_time += res.libs[i].decode_time;
|
||||
dir_total.libs[i].size += res.libs[i].size;
|
||||
}
|
||||
|
||||
grand_total->count++;
|
||||
grand_total->raw_size += res.raw_size;
|
||||
grand_total->px += res.px;
|
||||
for (int i = 0; i < BENCH_COUNT; ++i) {
|
||||
grand_total->libs[i].encode_time += res.libs[i].encode_time;
|
||||
grand_total->libs[i].decode_time += res.libs[i].decode_time;
|
||||
grand_total->libs[i].size += res.libs[i].size;
|
||||
}
|
||||
}
|
||||
closedir(dir);
|
||||
|
||||
if (dir_total.count > 0) {
|
||||
printf("## Total for %s\n", path);
|
||||
benchmark_print_result(dir_total);
|
||||
}
|
||||
}
|
||||
|
||||
int main(int argc, char **argv) {
|
||||
if (argc < 3) {
|
||||
printf("Usage: qoibench <iterations> <directory> [options]\n");
|
||||
printf("Options:\n");
|
||||
printf(" --nowarmup ... don't perform a warmup run\n");
|
||||
printf(" --nopng ...... don't run png encode/decode\n");
|
||||
printf(" --noverify ... don't verify qoi roundtrip\n");
|
||||
printf(" --noencode ... don't run encoders\n");
|
||||
printf(" --nodecode ... don't run decoders\n");
|
||||
printf(" --norecurse .. don't descend into directories\n");
|
||||
printf(" --onlytotals . don't print individual image results\n");
|
||||
printf("Examples\n");
|
||||
printf(" qoibench 10 images/textures/\n");
|
||||
printf(" qoibench 1 images/textures/ --nopng --nowarmup\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
for (int i = 3; i < argc; i++) {
|
||||
if (strcmp(argv[i], "--nowarmup") == 0) { opt_nowarmup = 1; }
|
||||
else if (strcmp(argv[i], "--nopng") == 0) { opt_nopng = 1; }
|
||||
else if (strcmp(argv[i], "--noverify") == 0) { opt_noverify = 1; }
|
||||
else if (strcmp(argv[i], "--noencode") == 0) { opt_noencode = 1; }
|
||||
else if (strcmp(argv[i], "--nodecode") == 0) { opt_nodecode = 1; }
|
||||
else if (strcmp(argv[i], "--norecurse") == 0) { opt_norecurse = 1; }
|
||||
else if (strcmp(argv[i], "--onlytotals") == 0) { opt_onlytotals = 1; }
|
||||
else { ERROR("Unknown option %s", argv[i]); }
|
||||
}
|
||||
|
||||
opt_runs = atoi(argv[1]);
|
||||
if (opt_runs <=0) {
|
||||
ERROR("Invalid number of runs %d", opt_runs);
|
||||
}
|
||||
|
||||
benchmark_result_t grand_total = {0};
|
||||
benchmark_directory(argv[2], &grand_total);
|
||||
|
||||
if (grand_total.count > 0) {
|
||||
printf("# Grand total for %s\n", argv[2]);
|
||||
benchmark_print_result(grand_total);
|
||||
}
|
||||
else {
|
||||
printf("No images found in %s\n", argv[2]);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
Reference in New Issue
Block a user