#include <string.h>
#include <stdlib.h>
#include "msg.h"
#include "image.hh"
#include "imgbuf.hh"
#include "web.hh"
#include "dicache.h"
#include "dpng.h"
#include "dgif.h"
#include "djpeg.h"
#include "dsvg.h"

Include dependency graph for dicache.c:

Macros
#define	I_RGB 0

Enumerations
enum	{ DIC_Gif , DIC_Png , DIC_Jpeg , DIC_Svg }

Functions
static int	Dicache_entry_cmp (const void v1, const void v2)
	Compare function for image entries.

void	a_Dicache_init (void)
	Initialize dicache data.

static DICacheEntry *	Dicache_entry_new (void)
	Create, and initialize a new, empty, dicache entry.

static DICacheEntry *	Dicache_add_entry (const DilloUrl *Url)
	Add a new entry in the dicache (a single URL may have several entries)

DICacheEntry *	a_Dicache_get_entry (const DilloUrl *Url, int version)
	Search a particular version of a URL in the Dicache.

static void	Dicache_remove (const DilloUrl *Url, int version)
	Actually free a dicache entry, given the URL and the version number.

void	a_Dicache_unref (const DilloUrl *Url, int version)
	Unrefs the counter of a dicache entry (it counts cache clients).

DICacheEntry *	a_Dicache_ref (const DilloUrl *Url, int version)
	Refs the counter of a dicache entry.

void	a_Dicache_invalidate_entry (const DilloUrl *Url)
	Invalidate this entry.

void	a_Dicache_set_parms (DilloUrl url, int version, DilloImage Image, uint_t width, uint_t height, DilloImgType type, double gamma)
	Set image's width, height & type.

void	a_Dicache_set_cmap (DilloUrl url, int version, int bg_color, const uchar_t cmap, uint_t num_colors, int num_colors_max, int bg_index)
	Implement the set_cmap method for the Image.

void	a_Dicache_new_scan (const DilloUrl *url, int version)
	Reset for a new scan from a multiple-scan image.

void	a_Dicache_write (DilloUrl url, int version, const uchar_t buf, uint_t Y)
	Implement the write method (Write a scan line into the Dicache entry) buf: row buffer Y : row number.

void	a_Dicache_close (DilloUrl url, int version, CacheClient_t Client)
	Implement the close method of the decoding process.

static void *	Dicache_image (int ImgType, const char MimeType, void Ptr, CA_Callback_t Call, void *Data)
	Generic MIME handler for GIF, JPEG, PNG and SVG.

void *	a_Dicache_png_image (const char Type, void Ptr, CA_Callback_t Call, void *Data)
	PNG wrapper for Dicache_image()

void *	a_Dicache_gif_image (const char Type, void Ptr, CA_Callback_t Call, void *Data)
	GIF wrapper for Dicache_image()

void *	a_Dicache_jpeg_image (const char Type, void Ptr, CA_Callback_t Call, void *Data)
	JPEG wrapper for Dicache_image()

void *	a_Dicache_svg_image (const char Type, void Ptr, CA_Callback_t Call, void *Data)
	SVG wrapper for Dicache_image()

void	a_Dicache_callback (int Op, CacheClient_t *Client)
	This function is a cache client; (but feeds its clients from dicache)

void	a_Dicache_cleanup (void)
	Free the imgbuf (RGB data) of unused entries.

void	a_Dicache_freeall (void)
	Deallocate memory used by dicache module (Call this one at exit time, with no cache clients queued)

Variables
static Dlist *	CachedIMGs = NULL
	List of DICacheEntry.

static uint_t	dicache_size_total

Macro Definition Documentation

◆ I_RGB

#define I_RGB 0

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

Enumerator
DIC_Gif
DIC_Png
DIC_Jpeg
DIC_Svg

Definition at line 27 of file dicache.c.

Function Documentation

◆ a_Dicache_callback()

void a_Dicache_callback	(	int	Op,
		CacheClient_t *	Client
	)

This function is a cache client; (but feeds its clients from dicache)

Definition at line 454 of file dicache.c.

References a_Bitvec_clear_bit, a_Bitvec_get_bit(), a_Bw_close_client(), a_Dicache_close(), a_Dicache_get_entry(), a_Image_abort(), a_Image_close(), a_Image_set_parms(), a_Image_write(), DICacheEntry::BitVec, _DilloImage::BitVec, CacheClient::BufSize, _DilloWeb::bw, CA_Abort, CA_Close, CA_Send, DICacheEntry::DecodedSize, DICacheEntry::Decoder, DIC_Close, DIC_Last, DIC_SetParms, DIC_Write, dReturn_if_fail, DICacheEntry::height, _DilloImage::height, _DilloWeb::Image, CacheClient::Key, DICacheEntry::ScanNumber, _DilloImage::ScanNumber, DICacheEntry::State, DICacheEntry::type, DICacheEntry::url, _DilloWeb::url, DICacheEntry::v_imgbuf, CacheClient::Version, DICacheEntry::version, CacheClient::Web, and DICacheEntry::width.

Referenced by Dicache_image().

◆ a_Dicache_cleanup()

void a_Dicache_cleanup ( void )

Free the imgbuf (RGB data) of unused entries.

Definition at line 522 of file dicache.c.

References _MSG, a_Imgbuf_last_reference(), CachedIMGs, Dicache_remove(), dList_length(), dList_nth_data(), DICacheEntry::RefCount, DICacheEntry::SurvCleanup, DICacheEntry::url, DICacheEntry::v_imgbuf, and DICacheEntry::version.

Referenced by Cache_process_queue().

◆ a_Dicache_close()

void a_Dicache_close	(	DilloUrl *	url,
		int	version,
		CacheClient_t *	Client
	)

Implement the close method of the decoding process.

Definition at line 329 of file dicache.c.

References _MSG, a_Bw_close_client(), a_Dicache_get_entry(), a_Dicache_unref(), _DilloWeb::bw, DICacheEntry::cmap, DICacheEntry::Decoder, DICacheEntry::DecoderData, dFree(), DIC_Close, dReturn_if_fail, CacheClient::Key, DICacheEntry::RefCount, DICacheEntry::State, DICacheEntry::v_imgbuf, and CacheClient::Web.

Referenced by a_Dicache_callback(), and Png_close().

◆ a_Dicache_freeall()

void a_Dicache_freeall ( void )

Deallocate memory used by dicache module (Call this one at exit time, with no cache clients queued)

Definition at line 548 of file dicache.c.

References a_Bitvec_free(), a_Imgbuf_unref(), a_Url_free(), DICacheEntry::BitVec, CachedIMGs, DICacheEntry::cmap, dFree(), dicache_size_total, dList_free(), dList_length(), dList_nth_data(), dList_remove_fast(), DICacheEntry::TotalSize, DICacheEntry::url, and DICacheEntry::v_imgbuf.

Referenced by main().

◆ a_Dicache_get_entry()

DICacheEntry * a_Dicache_get_entry	(	const DilloUrl *	Url,
		int	version
	)

Search a particular version of a URL in the Dicache.

Returns: a pointer to the entry if found; NULL otherwise.

Notes: DIC_Last means last version of the image. version zero is not allowed.

Definition at line 130 of file dicache.c.

References CachedIMGs, DIC_Last, Dicache_entry_cmp(), DIF_Valid, dList_find_sorted(), dReturn_val_if_fail, DICacheEntry::Flags, DICacheEntry::url, and DICacheEntry::version.

Referenced by a_Cache_stop_client(), a_Dicache_callback(), a_Dicache_close(), a_Dicache_invalidate_entry(), a_Dicache_new_scan(), a_Dicache_ref(), a_Dicache_set_cmap(), a_Dicache_set_parms(), a_Dicache_unref(), a_Dicache_write(), and Dicache_image().

◆ a_Dicache_gif_image()

void * a_Dicache_gif_image	(	const char *	Type,
		void *	Ptr,
		CA_Callback_t *	Call,
		void **	Data
	)

GIF wrapper for Dicache_image()

Definition at line 427 of file dicache.c.

References DIC_Gif, and Dicache_image().

Referenced by a_Mime_init().

◆ a_Dicache_init()

void a_Dicache_init ( void )

Initialize dicache data.

Definition at line 65 of file dicache.c.

References CachedIMGs, dicache_size_total, and dList_new().

Referenced by main().

◆ a_Dicache_invalidate_entry()

void a_Dicache_invalidate_entry ( const DilloUrl * Url )

Invalidate this entry.

This is used for the reloading mechanism. Can't erase current versions, but a_Dicache_get_entry(url, DIC_Last) must return NULL.

Definition at line 212 of file dicache.c.

References a_Dicache_get_entry(), DIC_Last, and DICacheEntry::Flags.

Referenced by Cache_entry_remove().

◆ a_Dicache_jpeg_image()

void * a_Dicache_jpeg_image	(	const char *	Type,
		void *	Ptr,
		CA_Callback_t *	Call,
		void **	Data
	)

JPEG wrapper for Dicache_image()

Definition at line 436 of file dicache.c.

References DIC_Jpeg, and Dicache_image().

Referenced by a_Mime_init().

◆ a_Dicache_new_scan()

void a_Dicache_new_scan	(	const DilloUrl *	url,
		int	version
	)

Reset for a new scan from a multiple-scan image.

Definition at line 286 of file dicache.c.

References _MSG, a_Bitvec_clear(), a_Dicache_get_entry(), a_Imgbuf_new_scan(), DICacheEntry::BitVec, DIC_SetParms, dReturn_if_fail, MSG, DICacheEntry::ScanNumber, DICacheEntry::State, and DICacheEntry::v_imgbuf.

Referenced by Png_datarow_callback().

◆ a_Dicache_png_image()

void * a_Dicache_png_image	(	const char *	Type,
		void *	Ptr,
		CA_Callback_t *	Call,
		void **	Data
	)

PNG wrapper for Dicache_image()

Definition at line 418 of file dicache.c.

References DIC_Png, and Dicache_image().

Referenced by a_Mime_init().

◆ a_Dicache_ref()

DICacheEntry * a_Dicache_ref	(	const DilloUrl *	Url,
		int	version
	)

Refs the counter of a dicache entry.

Definition at line 197 of file dicache.c.

References a_Dicache_get_entry(), and DICacheEntry::RefCount.

Referenced by Dicache_image().

◆ a_Dicache_set_cmap()

void a_Dicache_set_cmap	(	DilloUrl *	url,
		int	version,
		int	bg_color,
		const uchar_t *	cmap,
		uint_t	num_colors,
		int	num_colors_max,
		int	bg_index
	)

Implement the set_cmap method for the Image.

Definition at line 262 of file dicache.c.

References _MSG, a_Dicache_get_entry(), DICacheEntry::cmap, dFree(), DIC_SetCmap, dNew0, dReturn_if_fail, and DICacheEntry::State.

◆ a_Dicache_set_parms()

void a_Dicache_set_parms	(	DilloUrl *	url,
		int	version,
		DilloImage *	Image,
		uint_t	width,
		uint_t	height,
		DilloImgType	type,
		double	gamma
	)

Set image's width, height & type.

'width' and 'height' come from the image data.
HTML width and height attrs are handled with setNonCssHint.
CSS sizing is handled by the CSS engine.

Definition at line 228 of file dicache.c.

References _MSG, a_Bitvec_new(), a_Dicache_get_entry(), a_Imgbuf_new(), DICacheEntry::BitVec, DIC_SetParms, dicache_size_total, dReturn_if_fail, DICacheEntry::height, I_RGB, _DilloImage::layout, DICacheEntry::RefCount, DICacheEntry::State, DICacheEntry::TotalSize, DICacheEntry::type, URL_STR, DICacheEntry::v_imgbuf, DICacheEntry::version, and DICacheEntry::width.

Referenced by Png_datainfo_callback().

◆ a_Dicache_svg_image()

void * a_Dicache_svg_image	(	const char *	Type,
		void *	Ptr,
		CA_Callback_t *	Call,
		void **	Data
	)

SVG wrapper for Dicache_image()

Definition at line 445 of file dicache.c.

References DIC_Svg, and Dicache_image().

Referenced by a_Mime_init().

◆ a_Dicache_unref()

void a_Dicache_unref	(	const DilloUrl *	Url,
		int	version
	)

Unrefs the counter of a dicache entry (it counts cache clients).

If there're no clients and no imgbuf, remove the entry. Otherwise, let a_Dicache_cleanup() do the job later (keeping it cached meanwhile for e.g. reload, repush, back/fwd).

Definition at line 180 of file dicache.c.

References _MSG, a_Dicache_get_entry(), a_Imgbuf_last_reference(), Dicache_remove(), DICacheEntry::RefCount, DICacheEntry::State, and DICacheEntry::v_imgbuf.

Referenced by a_Cache_stop_client(), and a_Dicache_close().