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-rwxr-xr-xsrc/png.c226
1 files changed, 0 insertions, 226 deletions
diff --git a/src/png.c b/src/png.c
deleted file mode 100755
index e86cfcb..0000000
--- a/src/png.c
+++ /dev/null
@@ -1,226 +0,0 @@
-/*
- FLAM3 - cosmic recursive fractal flames
- Copyright (C) 1992-2009 Spotworks LLC
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <png.h>
-#include <setjmp.h>
-
-#include "config.h"
-#include "img.h"
-#include "flam3.h"
-#include "private.h"
-
-#ifdef _WIN32
-#include <winsock.h> /* for htons */
-#else
-#include <arpa/inet.h>
-#endif
-
-void write_png(FILE *file, void *image, int width, int height, flam3_img_comments *fpc, int bpc) {
- png_structp png_ptr;
- png_infop info_ptr;
- png_text text[FLAM3_PNG_COM];
- size_t i;
- unsigned short testbe = 1;
- void **rows = malloc(sizeof(void *) * height);
- char *nick = getenv("nick");
- char *url = getenv("url");
- char *id = getenv("id");
- char *ai; /* For argi */
- int pngcom_enable = argi("enable_png_comments", 1);
-
- text[0].compression = PNG_TEXT_COMPRESSION_NONE;
- text[0].key = "flam3_version";
- text[0].text = flam3_version();
-
- text[1].compression = PNG_TEXT_COMPRESSION_NONE;
- text[1].key = "flam3_nickname";
- text[1].text = nick;
-
- text[2].compression = PNG_TEXT_COMPRESSION_NONE;
- text[2].key = "flam3_url";
- text[2].text = url;
-
- text[3].compression = PNG_TEXT_COMPRESSION_NONE;
- text[3].key = "flam3_id";
- text[3].text = id;
-
- text[4].compression = PNG_TEXT_COMPRESSION_NONE;
- text[4].key = "flam3_error_rate";
- text[4].text = fpc->badvals;
-
- text[5].compression = PNG_TEXT_COMPRESSION_NONE;
- text[5].key = "flam3_samples";
- text[5].text = fpc->numiters;
-
- text[6].compression = PNG_TEXT_COMPRESSION_NONE;
- text[6].key = "flam3_time";
- text[6].text = fpc->rtime;
-
- text[7].compression = PNG_TEXT_COMPRESSION_zTXt;
- text[7].key = "flam3_genome";
- text[7].text = fpc->genome;
-
- for (i = 0; i < height; i++)
- rows[i] = (unsigned char *)image + i * width * 4 * bpc;
-
- png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING,
- NULL, NULL, NULL);
- info_ptr = png_create_info_struct(png_ptr);
-
- if (setjmp(png_jmpbuf(png_ptr))) {
- fclose(file);
- png_destroy_write_struct(&png_ptr, &info_ptr);
- perror("writing file");
- return;
- }
- png_init_io(png_ptr, file);
-
- png_set_IHDR(png_ptr, info_ptr, width, height, 8*bpc,
- PNG_COLOR_TYPE_RGBA,
- PNG_INTERLACE_NONE,
- PNG_COMPRESSION_TYPE_BASE,
- PNG_FILTER_TYPE_BASE);
-
- if (pngcom_enable==1)
- png_set_text(png_ptr, info_ptr, text, FLAM3_PNG_COM);
-
- png_write_info(png_ptr, info_ptr);
-
- /* Must set this after the write_info */
- if (2==bpc && testbe != htons(testbe)) {
- png_set_swap(png_ptr);
- }
-
- png_write_image(png_ptr, (png_bytepp) rows);
- png_write_end(png_ptr, info_ptr);
- png_destroy_write_struct(&png_ptr, &info_ptr);
- free(rows);
-
-}
-
-#define SIG_CHECK_SIZE 8
-
-unsigned char *read_png(FILE *ifp, int *width, int *height) {
- unsigned char sig_buf [SIG_CHECK_SIZE];
- png_struct *png_ptr;
- png_info *info_ptr;
- png_byte **png_image = NULL;
- unsigned int linesize, x, y;
- unsigned char *p, *q;
-
- if (fread (sig_buf, 1, SIG_CHECK_SIZE, ifp) != SIG_CHECK_SIZE) {
- fprintf (stderr, "input file empty or too short\n");
- return 0;
- }
- if (png_sig_cmp (sig_buf, (png_size_t) 0, (png_size_t) SIG_CHECK_SIZE) != 0) {
- fprintf (stderr, "input file not a PNG file\n");
- return 0;
- }
-
- png_ptr = png_create_read_struct (PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
- if (png_ptr == NULL) {
- fprintf (stderr, "cannot allocate LIBPNG structure\n");
- return 0;
- }
- if (setjmp(png_jmpbuf(png_ptr))) {
- if (png_image) {
- for (y = 0 ; y < png_get_image_height(png_ptr, info_ptr) ; y++)
- free (png_image[y]);
- free (png_image);
- }
- png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
- perror("reading file");
- return 0;
- }
- info_ptr = png_create_info_struct (png_ptr);
- if (info_ptr == NULL) {
- png_destroy_read_struct (&png_ptr, (png_infopp)NULL, (png_infopp)NULL);
- fprintf (stderr, "cannot allocate LIBPNG structures\n");
- return 0;
- }
-
- png_init_io (png_ptr, ifp);
- png_set_sig_bytes (png_ptr, SIG_CHECK_SIZE);
- png_read_info (png_ptr, info_ptr);
-
- if (8 != png_get_bit_depth(png_ptr, info_ptr)) {
- fprintf(stderr, "bit depth type must be 8, not %d.\n",
- png_get_bit_depth(png_ptr, info_ptr));
- return 0;
- }
-
- *width = png_get_image_width(png_ptr, info_ptr);
- *height = png_get_image_height(png_ptr, info_ptr);
- p = q = malloc(4 * *width * *height);
- png_image = (png_byte **)malloc (*height * sizeof (png_byte*));
-
- linesize = *width;
- switch (png_get_color_type(png_ptr, info_ptr)) {
- case PNG_COLOR_TYPE_RGB:
- linesize *= 3;
- break;
- case PNG_COLOR_TYPE_RGBA:
- linesize *= 4;
- break;
- default:
- fprintf(stderr, "color type must be RGB or RGBA not %d.\n",
- png_get_color_type(png_ptr, info_ptr));
- return 0;
- }
-
- for (y = 0 ; y < *height ; y++) {
- png_image[y] = malloc (linesize);
- }
- png_read_image (png_ptr, png_image);
- png_read_end (png_ptr, info_ptr);
-
- for (y = 0 ; y < *height ; y++) {
- unsigned char *s = png_image[y];
- for (x = 0 ; x < *width ; x++) {
-
- switch (png_get_color_type(png_ptr, info_ptr)) {
- case PNG_COLOR_TYPE_RGB:
- p[0] = s[0];
- p[1] = s[1];
- p[2] = s[2];
- p[3] = 255;
- s += 3;
- p += 4;
- break;
- case PNG_COLOR_TYPE_RGBA:
- p[0] = s[0];
- p[1] = s[1];
- p[2] = s[2];
- p[3] = s[3];
- s += 4;
- p += 4;
- break;
- }
- }
- }
-
- for (y = 0 ; y < *height ; y++)
- free (png_image[y]);
- free (png_image);
- png_destroy_read_struct (&png_ptr, &info_ptr, (png_infopp)NULL);
-
- return q;
-}
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