Initial import

diff --git a/Makefile b/Makefile
new file mode 100644 (file)
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 (file)
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;
+}