Initial revision

1 files changed, 79 insertions, 0 deletions

diff --git a/src/image.hh b/src/image.hh
new file mode 100644
index 00000000..fde51838
--- /dev/null
+++ b/src/image.hh
@@ -0,0 +1,79 @@
+#ifndef __IMAGE_HH__
+#define __IMAGE_HH__
+
+// The DilloImage data-structure and methods
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+#include "bitvec.h"
+#include "url.h"
+
+typedef struct _DilloImage DilloImage;
+
+typedef enum {
+   DILLO_IMG_TYPE_INDEXED,
+   DILLO_IMG_TYPE_RGB,
+   DILLO_IMG_TYPE_GRAY,
+   DILLO_IMG_TYPE_NOTSET    /* Initial value */
+} DilloImgType;
+
+/* These will reflect the Image's "state" */
+typedef enum {
+   IMG_Empty,      /* Just created the entry */
+   IMG_SetParms,   /* Parameters set */
+   IMG_SetCmap,    /* Color map set */
+   IMG_Write,      /* Feeding the entry */
+   IMG_Close,      /* Whole image got! */
+   IMG_Abort       /* Image transfer aborted */
+} ImageState;
+
+struct _DilloImage {
+   void *dw;
+
+   /* Parameters as told by image data */
+   uint_t width;
+   uint_t height;
+
+   const uchar_t *cmap;     /* Color map (only for indexed) */
+   DilloImgType in_type;   /* Image Type */
+   int32_t bg_color;        /* Background color */
+
+   int ProcessedBytes;    /* Amount of bytes already decoded */
+   bitvec_t *BitVec;       /* Bit vector for decoded rows */
+   ImageState State;
+
+   int RefCount;          /* Reference counter */
+};
+
+
+/*
+ * Function prototypes
+ */
+DilloImage *a_Image_new(int width, int height,
+                        const char *alt_text, int32_t bg_color);
+void a_Image_ref(DilloImage *Image);
+void a_Image_unref(DilloImage *Image);
+
+void a_Image_set_parms(DilloImage *Image, void *v_imgbuf, DilloUrl *url,
+                       int version, uint_t width, uint_t height,
+                       DilloImgType type);
+void a_Image_set_cmap(DilloImage *Image, const uchar_t *cmap);
+void a_Image_write(DilloImage *Image, void *v_imgbuf,
+                   const uchar_t *buf, uint_t y, int decode);
+void a_Image_close(DilloImage *Image);
+
+void a_Image_imgbuf_ref(void *v_imgbuf);
+void a_Image_imgbuf_unref(void *v_imgbuf);
+void *a_Image_imgbuf_new(void *v_dw, int img_type, int width, int height) ;
+int a_Image_imgbuf_last_reference(void *v_imgbuf);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __IMAGE_HH__ */
+