1 files changed, 59 insertions, 0 deletions
diff --git a/tools/gslite/gslt_image.h b/tools/gslite/gslt_image.h
new file mode 100644
index 000000000..bdafb9a45
--- /dev/null
+++ b/tools/gslite/gslt_image.h
@@ -0,0 +1,59 @@
+/* Copyright (C) 2006 artofcode LLC.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* $Id: gslt_image.h 2713 2007-01-02 22:22:14Z henrys $*/
+/* gslt image loading interface */
+
+#ifndef gslt_image_INCLUDED
+#  define gslt_image_INCLUDED
+
+/* primary image object type */
+typedef struct gslt_image_s gslt_image_t;
+
+/* colorspace enumeration for image data */
+typedef enum {
+    GSLT_GRAY,
+    GSLT_GRAY_A,
+    GSLT_RGB,
+    GSLT_RGB_A,
+    GSLT_CMYK, 
+    GSLT_CMYK_A,
+    GSLT_UNDEFINED  /* sentinel for the last defined colorspace */
+} gslt_image_colorspace; 
+
+/* definition of the image object structure */
+struct gslt_image_s {
+    int width;	/* image width */
+    int height; /* image height */
+    int stride; /* byte offset between image data rows */
+    int components; /* number of components (channels) per pixel */
+    int bits;	/* bits per component */
+    int xres;	/* horizontal image resolution in pixels per meter */
+    int yres;	/* vertical image resolution in pixels per meter */
+    byte *samples; /* image data buffer */
+    gslt_image_colorspace colorspace; /* image pixel component mapping */
+};
+
+/* decode an image from a memory buffer */
+gslt_image_t *gslt_image_decode(gs_memory_t *mem, byte *buf, int len);
+
+/* free an image object when it is no longer needed */
+void gslt_image_free(gs_memory_t *mem, gslt_image_t *image);
+
+
+/* decode a memory buffer as a particular image format */
+gslt_image_t *gslt_image_decode_jpeg(gs_memory_t *mem, byte *buf, int len);
+gslt_image_t *gslt_image_decode_png( gs_memory_t *mem, byte *buf, int len);
+gslt_image_t *gslt_image_decode_tiff(gs_memory_t *mem, byte *buf, int len);
+
+#endif /* gslt_image_INCLUDED */