added 3dengfx into the repo, probably not the correct version for this

[summerhack] / src / 3dengfx / src / gfx / image.h

diff --git a/src/3dengfx/src/gfx/image.h b/src/3dengfx/src/gfx/image.h
new file mode 100644 (file)
index 0000000..e4b178b
--- /dev/null
+++ b/src/3dengfx/src/gfx/image.h
@@ -0,0 +1,88 @@
+/*
+Copyright 2004 John Tsiombikas <nuclear@siggraph.org>
+
+This is a small image library.
+
+This library 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 2 of the License, or
+(at your option) any later version.
+
+This library 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 library; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+/* image file handling library
+ *
+ * author: John Tsiombikas 2003
+ * modified: John Tsiombikas 2004
+ */
+
+#ifndef IMAGE_H_
+#define IMAGE_H_
+
+#include "3dengfx_config.h"
+
+/* always compile support for image formats that
+ * don't create any library dependencies.
+ */
+#define IMGLIB_USE_TGA
+#define IMGLIB_USE_PPM
+
+/* for jpeg and png, make the default be to compile them in,
+ * unless explicitly disabled.
+ */
+#ifndef IMGLIB_NO_JPEG
+#define IMGLIB_USE_JPEG
+#endif /* IMGLIB_NO_JPEG */
+
+#ifndef IMGLIB_NO_PNG
+#define IMGLIB_USE_PNG
+#endif /* IMGLIB_NO_PNG */
+
+
+enum image_file_format {
+       IMG_FMT_PNG,
+       IMG_FMT_JPEG,
+       IMG_FMT_TGA,
+       IMG_FMT_PPM
+};
+
+enum {
+       IMG_SAVE_ALPHA          = 1,
+       IMG_SAVE_COMPRESS       = 2,
+       IMG_SAVE_INVERT         = 4
+};
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/* load_image() loads the specified image from file, returns the pixel data
+ * in 32bit mode, and changes xsz and ysz to the size of the image
+ */
+void *load_image(const char *fname, unsigned long *xsz, unsigned long *ysz);
+
+/* deallocate the image data with this function
+ * note: provided for consistency, simply calls free()
+ */
+void free_image(void *img);
+
+/* save the supplied image data in a file of the specified format */
+int save_image(const char *fname, void *pixels, unsigned long xsz, unsigned long ysz, enum image_file_format fmt);
+
+/* set/get save image options */
+void set_image_save_flags(unsigned int flags);
+unsigned int get_image_save_flags(void);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+       
+#endif /* IMAGE_H_ */