From 1171b5cd8a723ec46f4a3784e0a7e0a9f6fcbd4f Mon Sep 17 00:00:00 2001
From: Antonio Ospite <ospite@studenti.unina.it>
Date: Sat, 7 Sep 2013 13:24:35 +0200
Subject: [PATCH] Initial import
---
Makefile | 39 +++++++++++++++++
libturbojpeg1-mem-dest.c | 108 +++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 147 insertions(+)
create mode 100644 Makefile
create mode 100644 libturbojpeg1-mem-dest.c
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..ff2e4b6
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,39 @@
+CFLAGS = -std=c99 -pedantic -pedantic-errors -Wall -g3 -O2 -D_ANSI_SOURCE_
+CFLAGS += -fno-common \
+ -Wall \
+ -Wdeclaration-after-statement \
+ -Wextra \
+ -Wformat=2 \
+ -Winit-self \
+ -Winline \
+ -Wpacked \
+ -Wp,-D_FORTIFY_SOURCE=2 \
+ -Wpointer-arith \
+ -Wlarger-than-65500 \
+ -Wmissing-declarations \
+ -Wmissing-format-attribute \
+ -Wmissing-noreturn \
+ -Wmissing-prototypes \
+ -Wnested-externs \
+ -Wold-style-definition \
+ -Wredundant-decls \
+ -Wsign-compare \
+ -Wstrict-aliasing=2 \
+ -Wstrict-prototypes \
+ -Wswitch-enum \
+ -Wundef \
+ -Wunreachable-code \
+ -Wunsafe-loop-optimizations \
+ -Wunused-but-set-variable \
+ -Wwrite-strings
+
+
+LDLIBS += -lturbojpeg
+
+libturbojpeg1-mem-dest: libturbojpeg1-mem-dest.o
+
+clean:
+ rm -rf *~ *.o *.jpg libturbojpeg1-mem-dest
+
+test:
+ valgrind --leak-check=full --show-reachable=yes ./libturbojpeg1-mem-dest
diff --git a/libturbojpeg1-mem-dest.c b/libturbojpeg1-mem-dest.c
new file mode 100644
index 0000000..0cedb8e
--- /dev/null
+++ b/libturbojpeg1-mem-dest.c
@@ -0,0 +1,108 @@
+/*
+ * libturbojpeg1-mem-dest - an example about reusing the memory buffer with libturbojpeg1
+ *
+ * Copyright (C) 2013 Antonio Ospite <ospite@studenti.unina.it>
+ *
+ * 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 <time.h>
+#include <turbojpeg.h>
+
+#define WIDTH 800
+#define HEIGHT 480
+
+static unsigned char *new_image(void)
+{
+ unsigned char *image;
+ int i;
+
+ image = malloc(WIDTH * HEIGHT * 3 * sizeof(*image));
+ if (image == NULL) {
+ perror("malloc");
+ exit(EXIT_FAILURE);
+ }
+
+ for (i = 0; i < WIDTH * HEIGHT * 3; i++)
+ image[i] = rand() % 0xff;
+
+ return image;
+}
+
+int main(void)
+{
+ int i;
+ tjhandle jpeg_compressor;
+ unsigned char *out_buf;
+ unsigned long out_buf_size;
+ unsigned char *input_image;
+ int ret;
+
+ jpeg_compressor = tjInitCompress();
+ if (jpeg_compressor == NULL) {
+ fprintf(stderr, "tjInitCompress failed: %s\n", tjGetErrorStr());
+ return -1;
+ }
+
+ out_buf_size = tjBufSize(WIDTH, HEIGHT, TJSAMP_422);
+ ret = (int) out_buf_size;
+ if (ret < 0) {
+ fprintf(stderr, "tjBufSize failed: %s\n", tjGetErrorStr());
+ goto out_destroy_compressor;
+ }
+ out_buf = malloc(out_buf_size);
+
+ i = 0;
+ while(i++ < 10) {
+ input_image = new_image();
+
+ ret = tjCompress2(jpeg_compressor, input_image, WIDTH, 0, HEIGHT,
+ TJPF_RGB, &out_buf, &out_buf_size, TJSAMP_422,
+ 80, TJFLAG_NOREALLOC | TJFLAG_FASTDCT);
+ if (ret < 0) {
+ tjGetErrorStr();
+ fprintf(stderr, "tjCompress2 failed: %s\n", tjGetErrorStr());
+ free(input_image);
+ goto out_free_buffer;
+ }
+
+ free(input_image);
+
+ /* Is out_buf_size the number of bytes of the jpeg image, or the
+ * size of the allocated buffer? */
+ fprintf(stderr, "out_buf: %p out_buf_size: %ld\n", out_buf, out_buf_size);
+ {
+ char filename[256] = { 0 };
+ FILE *out_file;
+
+ snprintf(filename, sizeof(filename), "out%03d.jpg", i);
+ out_file = fopen(filename, "wb");
+ fwrite(out_buf, out_buf_size, 1, out_file);
+ fclose(out_file);
+ }
+ }
+
+ ret = 0;
+
+out_free_buffer:
+ free(out_buf);
+out_destroy_compressor:
+ ret = tjDestroy(jpeg_compressor);
+ if (ret < 0)
+ fprintf(stderr, "tjDestroy failed: %s\n", tjGetErrorStr());
+
+ return ret;
+}
--
2.1.4