netscape-revival
include/il.h
/* -*- Mode: C; tab-width: 4 -*-
* il.h --- Exported image library interface
* Copyright © 1997 Netscape Communications Corporation, all rights reserved.
*
* $Id: il.h,v 1.78.38.1 1997/03/06 13:34:26 jwz Exp $
*/
/*
* global defines for image lib users
*/
#ifndef _IL_H
#define _IL_H
#include "ntypes.h"
#define IL_UNKNOWN 0
#define IL_GIF 1
#define IL_XBM 2
#define IL_JPEG 3
#define IL_PPM 4
#define IL_NOTFOUND 256
struct IL_IRGB_struct {
uint8 index, attr;
uint8 red, green, blue;
};
/* attr values */
#define IL_ATTR_RDONLY 0
#define IL_ATTR_RW 1
#define IL_ATTR_TRANSPARENT 2
#define IL_ATTR_HONOR_INDEX 4
struct IL_RGB_struct {
uint8 red, green, blue, pad;
/* windows requires the fourth byte & many compilers pad it anyway */
};
#undef ABS
#define ABS(x) (((x) < 0) ? -(x) : (x))
/* A fast, but stupid, perceptually-weighted color distance function */
#define IL_COLOR_DISTANCE(r1, r2, g1, g2, b1, b2) \
((ABS((g1) - (g2)) << 2) + (ABS((r1) - (r2)) << 1) + (ABS((b1) - (b2))))
/* We don't distinguish between colors that are "closer" together
than this. The appropriate setting is a subjective matter. */
#define IL_CLOSE_COLOR_THRESHOLD 6
struct IL_Image_struct {
void XP_HUGE *bits;
int width, height;
int widthBytes, maskWidthBytes;
int depth, bytesPerPixel;
int colors;
int unique_colors; /* Number of non-duplicated colors in colormap */
IL_RGB *map;
IL_IRGB *transparent;
void XP_HUGE *mask;
int validHeight; /* number of valid scanlines */
void *platformData; /* used by platform-specific FE */
Bool has_mask;
Bool hasUniqueColormap;
};
/* FE fixed image icons */
#define IL_IMAGE_FIRST 0x11
#define IL_IMAGE_DELAYED 0x11
#define IL_IMAGE_NOT_FOUND 0x12
#define IL_IMAGE_BAD_DATA 0x13
#define IL_IMAGE_INSECURE 0x14
#define IL_IMAGE_EMBED 0x15
#define IL_IMAGE_LAST 0x15
#define IL_NEWS_FIRST 0x21
#define IL_NEWS_CATCHUP 0x21
#define IL_NEWS_CATCHUP_THREAD 0x22
#define IL_NEWS_FOLLOWUP 0x23
#define IL_NEWS_GOTO_NEWSRC 0x24
#define IL_NEWS_NEXT_ART 0x25
#define IL_NEWS_NEXT_ART_GREY 0x26
#define IL_NEWS_NEXT_THREAD 0x27
#define IL_NEWS_NEXT_THREAD_GREY 0x28
#define IL_NEWS_POST 0x29
#define IL_NEWS_PREV_ART 0x2A
#define IL_NEWS_PREV_ART_GREY 0x2B
#define IL_NEWS_PREV_THREAD 0x2C
#define IL_NEWS_PREV_THREAD_GREY 0x2D
#define IL_NEWS_REPLY 0x2E
#define IL_NEWS_RTN_TO_GROUP 0x2F
#define IL_NEWS_SHOW_ALL_ARTICLES 0x30
#define IL_NEWS_SHOW_UNREAD_ARTICLES 0x31
#define IL_NEWS_SUBSCRIBE 0x32
#define IL_NEWS_UNSUBSCRIBE 0x33
#define IL_NEWS_FILE 0x34
#define IL_NEWS_FOLDER 0x35
#define IL_NEWS_FOLLOWUP_AND_REPLY 0x36
#define IL_NEWS_LAST 0x36
#define IL_GOPHER_FIRST 0x41
#define IL_GOPHER_TEXT 0x41
#define IL_GOPHER_IMAGE 0x42
#define IL_GOPHER_BINARY 0x43
#define IL_GOPHER_SOUND 0x44
#define IL_GOPHER_MOVIE 0x45
#define IL_GOPHER_FOLDER 0x46
#define IL_GOPHER_SEARCHABLE 0x47
#define IL_GOPHER_TELNET 0x48
#define IL_GOPHER_UNKNOWN 0x49
#define IL_GOPHER_LAST 0x49
#define IL_EDIT_FIRST 0x60
#define IL_EDIT_NAMED_ANCHOR 0x61
#define IL_EDIT_FORM_ELEMENT 0x62
#define IL_EDIT_UNSUPPORTED_TAG 0x63
#define IL_EDIT_UNSUPPORTED_END_TAG 0x64
#define IL_EDIT_JAVA 0x65
#define IL_EDIT_PLUGIN 0x66
#define IL_EDIT_LAST 0x66
/* Security Advisor and S/MIME icons */
#define IL_SA_FIRST 0x70
#define IL_SA_SIGNED 0x71
#define IL_SA_ENCRYPTED 0x72
#define IL_SA_NONENCRYPTED 0x73
#define IL_SA_SIGNED_BAD 0x74
#define IL_SA_ENCRYPTED_BAD 0x75
#define IL_SMIME_ATTACHED 0x76
#define IL_SMIME_SIGNED 0x77
#define IL_SMIME_ENCRYPTED 0x78
#define IL_SMIME_ENC_SIGNED 0x79
#define IL_SMIME_SIGNED_BAD 0x7A
#define IL_SMIME_ENCRYPTED_BAD 0x7B
#define IL_SMIME_ENC_SIGNED_BAD 0x7C
#define IL_SA_LAST 0x7C
XP_BEGIN_PROTOS
extern NET_StreamClass * IL_NewStream (FO_Present_Types format_out,
void *data_obj, URL_Struct *URL_s,
MWContext *context);
extern NET_StreamClass * IL_ViewStream (FO_Present_Types format_out,
void *data_obj, URL_Struct *URL_s,
MWContext *context);
extern int IL_GetImage(const char* url, MWContext* client,
LO_ImageStruct *clientData, NET_ReloadMethod reload);
extern Bool IL_FreeImage (MWContext *context, IL_Image *portableImage,
LO_ImageStruct *lo_image);
extern Bool IL_ReplaceImage (MWContext *context, LO_ImageStruct *new_lo_image,
LO_ImageStruct *old_lo_image);
extern IL_IRGB *IL_UpdateColorMap(MWContext *context, IL_IRGB *in,
int in_colors, int free_colors,
int *out_colors, IL_IRGB *transparent);
extern int IL_RealizeDefaultColormap(MWContext *context, IL_IRGB *bgcolor,
int max_colors);
extern int IL_EnableTrueColor(MWContext *context, int bitsperpixel,
int rshift, int gshift, int bshift,
int rbits, int gbits, int bbits,
IL_IRGB *transparent,
int wild_wacky_rounding);
extern int IL_GreyScale(MWContext *context, int depth, IL_IRGB *transparent);
extern int IL_InitContext(MWContext *cx);
extern void IL_SetPreferences(MWContext *context, Bool incrementalDisplay,
IL_DitherMode dither_mode);
extern void IL_StartPage(MWContext *context);
extern void IL_EndPage(MWContext *context);
extern void IL_DeleteImages(MWContext *cx);
extern void IL_SamePage(MWContext *cx);
extern int IL_Type(const char *buf, int32 len);
extern void IL_DisableScaling(MWContext *cx);
extern void IL_DisableLowSrc(MWContext *cx);
extern void IL_SetByteOrder(MWContext *cx, Bool ls_bit_first,
Bool ls_byte_first);
extern int IL_SetTransparent(MWContext *cx, IL_IRGB *transparent);
extern void IL_NoMoreImages(MWContext *cx);
extern uint32 IL_ShrinkCache(void);
extern uint32 IL_GetCacheSize(void);
extern void IL_Shutdown(void);
extern Bool IL_PreferredStream(URL_Struct *urls);
extern void IL_UnCache(IL_Image *img);
extern int IL_ColormapTag(const char *image_url, MWContext* cx);
extern void IL_SetColorRenderMode(MWContext *cx,
IL_ColorRenderMode color_render_mode);
extern void IL_ReduceImageCacheSizeTo(uint32 new_size);
extern int IL_DisplayMemCacheInfoAsHTML(FO_Present_Types format_out,
URL_Struct *urls,
MWContext *cx);
extern void IL_ScourContext(MWContext *cx);
extern void IL_SetImageCacheSize(uint32 new_size);
extern char *IL_HTMLImageInfo(char *url_address);
extern void IL_UseDefaultColormapThisPage(MWContext *cx);
extern void IL_InterruptContext(MWContext *cx);
extern Bool IL_AreThereLoopingImagesForContext(MWContext *cx);
XP_END_PROTOS
#endif /* _IL_H */