Initial import of Dillo

2025-02-28 13:34:30 -05:00
parent bd4e3eebd8
commit 20fea64cb5
496 changed files with 156174 additions and 0 deletions
--- a/src/image.hh
+++ b/src/image.hh
@ -0,0 +1,102 @@
+/*
+ * File: image.hh
+ *
+ * Copyright (C) 2005-2007 Jorge Arellano Cid <jcid@dillo.org>,
+ *                         Sebastian Geerken  <sgeerken@dillo.org>
+ * Copyright (C) 2024 Rodrigo Arias Mallo <rodarima@gmail.com>
+ *
+ * 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.
+ */
+
+#ifndef __IMAGE_HH__
+#define __IMAGE_HH__
+
+/** @file
+ * The DilloImage data-structure and methods */
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+#include "bitvec.h"
+#include "url.h"
+
+/*
+ * Defines
+ */
+
+/** Arbitrary maximum for image size. To avoid image size-crafting attacks. */
+#define IMAGE_MAX_AREA (6000 * 6000)
+
+/*
+ * Types
+ */
+
+typedef struct _DilloImage DilloImage;
+
+typedef enum {
+   DILLO_IMG_TYPE_INDEXED,
+   DILLO_IMG_TYPE_RGB,
+   DILLO_IMG_TYPE_GRAY,
+   DILLO_IMG_TYPE_CMYK_INV,
+   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 *layout, *img_rndr;
+
+   /* Parameters as told by image data */
+   uint_t width;
+   uint_t height;
+
+   float dpi;               /**< Dots per inch */
+   int32_t bg_color;        /**< Background color */
+   int32_t fg_color;        /**< Foreground color */
+   bitvec_t *BitVec;        /**< Bit vector for decoded rows */
+   uint_t ScanNumber;       /**< Current decoding scan */
+   ImageState State;        /**< Processing status */
+
+   int RefCount;            /**< Reference counter */
+};
+
+
+/*
+ * Function prototypes
+ */
+DilloImage *a_Image_new(void *layout, void *img_rndr,
+                        int32_t bg_color, int32_t fg_color);
+DilloImage *a_Image_new_with_dw(void *layout, const char *alt_text,
+                                int32_t bg_color, int32_t fg_color);
+void *a_Image_get_dw(DilloImage *Image);
+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_write(DilloImage *Image, uint_t y);
+void a_Image_close(DilloImage *Image);
+void a_Image_abort(DilloImage *Image);
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __IMAGE_HH__ */
+