diff options
Diffstat (limited to 'drivers/jpg/loadjpeg.c')
-rw-r--r-- | drivers/jpg/loadjpeg.c | 341 |
1 files changed, 0 insertions, 341 deletions
diff --git a/drivers/jpg/loadjpeg.c b/drivers/jpg/loadjpeg.c deleted file mode 100644 index 82072d4272..0000000000 --- a/drivers/jpg/loadjpeg.c +++ /dev/null @@ -1,341 +0,0 @@ -/* - * Small jpeg decoder library - testing application - * - * Copyright (c) 2006, Luc Saillard <luc@saillard.org> - * All rights reserved. - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * - Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * - * - Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * - Neither the name of the author nor the names of its contributors may be - * used to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include "tinyjpeg.h" -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> - -#define snprintf(buf, size, fmt, ...) sprintf(buf, fmt, __VA_ARGS__) - -static void exitmessage(const char *message) __attribute__((noreturn)); -static void exitmessage(const char *message) -{ - printf("%s\n", message); - exit(0); -} - -static int filesize(FILE *fp) -{ - long pos; - fseek(fp, 0, SEEK_END); - pos = ftell(fp); - fseek(fp, 0, SEEK_SET); - return pos; -} - -/** - * Save a buffer in 24bits Targa format - * (BGR byte order) - */ -static void write_tga(const char *filename, int output_format, int width, int height, unsigned char **components) -{ - unsigned char targaheader[18]; - FILE *F; - char temp[1024]; - unsigned int bufferlen = width * height * 3; - unsigned char *rgb_data = components[0]; - - sprintf(temp, sizeof(temp), filename); - - memset(targaheader,0,sizeof(targaheader)); - - targaheader[12] = (unsigned char) (width & 0xFF); - targaheader[13] = (unsigned char) (width >> 8); - targaheader[14] = (unsigned char) (height & 0xFF); - targaheader[15] = (unsigned char) (height >> 8); - targaheader[17] = 0x20; /* Top-down, non-interlaced */ - targaheader[2] = 2; /* image type = uncompressed RGB */ - targaheader[16] = 24; - - if (output_format == TINYJPEG_FMT_RGB24) - { - unsigned char *data = rgb_data + bufferlen - 3; - do - { - unsigned char c = data[0]; - data[0] = data[2]; - data[2] = c; - data-=3; - } - while (data > rgb_data); - } - - F = fopen(temp, "wb"); - fwrite(targaheader, sizeof(targaheader), 1, F); - fwrite(rgb_data, 1, bufferlen, F); - fclose(F); -} - -/** - * Save a buffer in three files (.Y, .U, .V) useable by yuvsplittoppm - */ -static void write_yuv(const char *filename, int width, int height, unsigned char **components) -{ - FILE *F; - char temp[1024]; - - snprintf(temp, 1024, "%s.Y", filename); - F = fopen(temp, "wb"); - fwrite(components[0], width, height, F); - fclose(F); - snprintf(temp, 1024, "%s.U", filename); - F = fopen(temp, "wb"); - fwrite(components[1], width*height/4, 1, F); - fclose(F); - snprintf(temp, 1024, "%s.V", filename); - F = fopen(temp, "wb"); - fwrite(components[2], width*height/4, 1, F); - fclose(F); -} - -/** - * Save a buffer in grey image (pgm format) - */ -static void write_pgm(const char *filename, int width, int height, unsigned char **components) -{ - FILE *F; - char temp[1024]; - - snprintf(temp, 1024, "%s", filename); - F = fopen(temp, "wb"); - fprintf(F, "P5\n%d %d\n255\n", width, height); - fwrite(components[0], width, height, F); - fclose(F); -} - -/** - * Load one jpeg image, and try to decompress 1000 times, and save the result. - * This is mainly used for benchmarking the decoder, or to test if between each - * called of the library the DCT is corrected reset (a bug was found). - */ -int load_multiple_times(const char *filename, const char *outfilename, int output_format) -{ - FILE *fp; - int count, length_of_file; - unsigned int width, height; - unsigned char *buf; - struct jdec_private *jdec; - unsigned char *components[4]; - - jdec = tinyjpeg_init(); - count = 0; - - /* Load the Jpeg into memory */ - fp = fopen(filename, "rb"); - if (fp == NULL) - exitmessage("Cannot open filename\n"); - length_of_file = filesize(fp); - buf = (unsigned char *)malloc(length_of_file + 4); - fread(buf, length_of_file, 1, fp); - fclose(fp); - - while (count<1000) - { - if (tinyjpeg_parse_header(jdec, buf, length_of_file)<0) - exitmessage(tinyjpeg_get_errorstring(jdec)); - - tinyjpeg_decode(jdec, output_format); - - count++; - } - - /* - * Get address for each plane (not only max 3 planes is supported), and - * depending of the output mode, only some components will be filled - * RGB: 1 plane, YUV420P: 3 planes, GREY: 1 plane - */ - tinyjpeg_get_components(jdec, components); - tinyjpeg_get_size(jdec, &width, &height); - - /* Save it */ - switch (output_format) - { - case TINYJPEG_FMT_RGB24: - case TINYJPEG_FMT_BGR24: - write_tga(outfilename, output_format, width, height, components); - break; - case TINYJPEG_FMT_YUV420P: - write_yuv(outfilename, width, height, components); - break; - case TINYJPEG_FMT_GREY: - write_pgm(outfilename, width, height, components); - break; - } - - free(buf); - tinyjpeg_free(jdec); - return 0; -} - -/** - * Load one jpeg image, and decompress it, and save the result. - */ -int convert_one_image(const char *infilename, const char *outfilename, int output_format) -{ - FILE *fp; - unsigned int length_of_file; - unsigned int width, height; - unsigned char *buf; - struct jdec_private *jdec; - unsigned char *components[3]; - - /* Load the Jpeg into memory */ - fp = fopen(infilename, "rb"); - if (fp == NULL) - exitmessage("Cannot open filename\n"); - length_of_file = filesize(fp); - buf = (unsigned char *)malloc(length_of_file + 4); - if (buf == NULL) - exitmessage("Not enough memory for loading file\n"); - fread(buf, length_of_file, 1, fp); - fclose(fp); - - /* Decompress it */ - jdec = tinyjpeg_init(); - if (jdec == NULL) - exitmessage("Not enough memory to alloc the structure need for decompressing\n"); - - if (tinyjpeg_parse_header(jdec, buf, length_of_file)<0) - exitmessage(tinyjpeg_get_errorstring(jdec)); - - /* Get the size of the image */ - tinyjpeg_get_size(jdec, &width, &height); - - printf("Decoding JPEG image...\n"); - if (tinyjpeg_decode(jdec, output_format) < 0) - exitmessage(tinyjpeg_get_errorstring(jdec)); - - /* - * Get address for each plane (not only max 3 planes is supported), and - * depending of the output mode, only some components will be filled - * RGB: 1 plane, YUV420P: 3 planes, GREY: 1 plane - */ - tinyjpeg_get_components(jdec, components); - - /* Save it */ - switch (output_format) - { - case TINYJPEG_FMT_RGB24: - case TINYJPEG_FMT_BGR24: - write_tga(outfilename, output_format, width, height, components); - break; - case TINYJPEG_FMT_YUV420P: - write_yuv(outfilename, width, height, components); - break; - case TINYJPEG_FMT_GREY: - write_pgm(outfilename, width, height, components); - break; - } - - /* Only called this if the buffers were allocated by tinyjpeg_decode() */ - tinyjpeg_free(jdec); - /* else called just free(jdec); */ - - free(buf); - return 0; -} - -static void usage(void) -{ - fprintf(stderr, "Usage: loadjpeg [options] <input_filename.jpeg> <format> <output_filename>\n"); - fprintf(stderr, "options:\n"); - fprintf(stderr, " --benchmark - Convert 1000 times the same image\n"); - fprintf(stderr, "format:\n"); - fprintf(stderr, " yuv420p - output 3 files .Y,.U,.V\n"); - fprintf(stderr, " rgb24 - output a .tga image\n"); - fprintf(stderr, " bgr24 - output a .tga image\n"); - fprintf(stderr, " gray - output a .pgm image\n"); - exit(1); -} - -/** - * main - * - */ -int main(int argc, char *argv[]) -{ - int output_format = TINYJPEG_FMT_YUV420P; - char *output_filename, *input_filename; - clock_t start_time, finish_time; - unsigned int duration; - int current_argument; - int benchmark_mode = 0; - - if (argc < 3) - usage(); - - current_argument = 1; - while (1) - { - if (strcmp(argv[current_argument], "--benchmark")==0) - benchmark_mode = 1; - else - break; - current_argument++; - } - - if (argc < current_argument+2) - usage(); - - input_filename = argv[current_argument]; - if (strcmp(argv[current_argument+1],"yuv420p")==0) - output_format = TINYJPEG_FMT_YUV420P; - else if (strcmp(argv[current_argument+1],"rgb24")==0) - output_format = TINYJPEG_FMT_RGB24; - else if (strcmp(argv[current_argument+1],"bgr24")==0) - output_format = TINYJPEG_FMT_BGR24; - else if (strcmp(argv[current_argument+1],"grey")==0) - output_format = TINYJPEG_FMT_GREY; - else - exitmessage("Bad format: need to be one of yuv420p, rgb24, bgr24, grey\n"); - output_filename = argv[current_argument+2]; - - start_time = clock(); - - if (benchmark_mode) - load_multiple_times(input_filename, output_filename, output_format); - else - convert_one_image(input_filename, output_filename, output_format); - - finish_time = clock(); - duration = finish_time - start_time; - printf("Decoding finished in %u ticks\n", duration); - - return 0; -} - - - - |