webp.c File Reference

implementation of content handling for image/webp More...

#include <stdbool.h>
#include <stdlib.h>
#include <setjmp.h>
#include <webp/decode.h>
#include "utils/utils.h"
#include "utils/log.h"
#include "utils/messages.h"
#include "netsurf/bitmap.h"
#include "content/llcache.h"
#include "content/content_protected.h"
#include "content/content_factory.h"
#include "desktop/gui_internal.h"
#include "desktop/bitmap.h"
#include "image/image_cache.h"
#include "webp.h"

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Functions
static nserror	webp_create (const content_handler *handler, lwc_string *imime_type, const struct http_parameter *params, llcache_handle *llcache, const char *fallback_charset, bool quirks, struct content **c)
	Content create entry point. More...
static struct bitmap *	webp_cache_convert (struct content *c)
	create a bitmap from webp content. More...
static bool	webp_convert (struct content *c)
	Convert the webp source data content. More...
static nserror	webp_clone (const struct content *old, struct content **new_c)
	Clone content. More...
	CONTENT_FACTORY_REGISTER_TYPES (nswebp, webp_types, webp_content_handler)

Variables
static const content_handler	webp_content_handler
static const char *	webp_types []

Detailed Description

implementation of content handling for image/webp

This implementation uses the google webp library. Image cache handling is performed by the generic NetSurf handler.

Definition in file webp.c.

Function Documentation

CONTENT_FACTORY_REGISTER_TYPES()

CONTENT_FACTORY_REGISTER_TYPES	(	nswebp	,
		webp_types	,
		webp_content_handler
	)

webp_cache_convert()

static struct bitmap * webp_cache_convert ( struct content *  c )

static

create a bitmap from webp content.

Definition at line 90 of file webp.c.

References netsurf_table::bitmap, bitmap(), bitmap_format_to_client(), BITMAP_LAYOUT_A8R8G8B8, BITMAP_LAYOUT_B8G8R8A8, BITMAP_LAYOUT_R8G8B8A8, BITMAP_NONE, BITMAP_OPAQUE, content__get_source_data(), gui_bitmap_table::create, gui_bitmap_table::destroy, fallthrough, gui_bitmap_table::get_buffer, gui_bitmap_table::get_rowstride, guit, bitmap_fmt::layout, gui_bitmap_table::modified, bitmap_fmt::pma, and bitmap::rowstride.

Referenced by webp_convert().

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webp_clone()

static nserror webp_clone ( const struct content *  old, struct content **  new_c  )

static

Clone content.

Definition at line 214 of file webp.c.

References content__clone(), content_destroy(), CONTENT_STATUS_DONE, CONTENT_STATUS_READY, NSERROR_CLONE_FAILED, NSERROR_NOMEM, NSERROR_OK, content::status, and webp_convert().

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webp_convert()

static bool webp_convert ( struct content *  c )

static

Convert the webp source data content.

This ensures there is valid webp source data in the content object and then adds it to the image cache ready to be converted on demand.

Parameters

c	The webp content object

Returns

true on successful processing of teh webp content else false

Definition at line 183 of file webp.c.

References content__get_source_data(), content_set_done(), content_set_ready(), content::height, height, image_cache_add(), NSLOG, content::size, webp_cache_convert(), content::width, and width.

Referenced by webp_clone().

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webp_create()

static nserror webp_create ( const content_handler *  handler, lwc_string *  imime_type, const struct http_parameter *  params, llcache_handle *  llcache, const char *  fallback_charset, bool  quirks, struct content **  c  )

static

Content create entry point.

create a content object for the webp

Definition at line 53 of file webp.c.

References content__init(), content::fallback_charset, content::handler, llcache, NSERROR_NOMEM, NSERROR_OK, and content::quirks.

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Variable Documentation

webp_content_handler

const content_handler webp_content_handler

static

Initial value:

= {
        .create = webp_create,
        .data_complete = webp_convert,
        .destroy = image_cache_destroy,
        .redraw = image_cache_redraw,
        .clone = webp_clone,
        .get_internal = image_cache_get_internal,
        .type = image_cache_content_type,
        .is_opaque = image_cache_is_opaque,
        .no_share = false,
}

Definition at line 244 of file webp.c.

webp_types

const char* webp_types[]

static

Initial value:

= {
        "image/webp"
}

Definition at line 256 of file webp.c.