/*
* Copyright 2008 James Shaw <js102@zepler.net>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/** \file
* Content for image/x-riscos-sprite (librosprite implementation).
*
*/
#include <assert.h>
#include <string.h>
#include <stdlib.h>
#include <librosprite.h>
#include "utils/config.h"
#include "content/content_protected.h"
#include "desktop/plotters.h"
#include "image/bitmap.h"
#include "image/nssprite.h"
#include "utils/log.h"
#include "utils/messages.h"
#include "utils/utils.h"
typedef struct nssprite_content {
struct content base;
struct bitmap *bitmap; /**< Created NetSurf bitmap */
struct rosprite_area* sprite_area;
} nssprite_content;
#define ERRCHK(x) do { \
rosprite_error err = x; \
if (err == ROSPRITE_EOF) { \
LOG(("Got ROSPRITE_EOF when loading sprite file")); \
return false; \
} else if (err == ROSPRITE_BADMODE) { \
LOG(("Got ROSPRITE_BADMODE when loading sprite file")); \
return false; \
} else if (err == ROSPRITE_OK) { \
} else { \
return false; \
} \
} while(0)
static nserror nssprite_create(const content_handler *handler,
lwc_string *imime_type, const http_parameter *params,
llcache_handle *llcache, const char *fallback_charset,
bool quirks, struct content **c)
{
nssprite_content *sprite;
nserror error;
sprite
= calloc(1, sizeof(nssprite_content
)); if (sprite == NULL)
return NSERROR_NOMEM;
error = content__init(&sprite->base, handler, imime_type, params,
llcache, fallback_charset, quirks);
if (error != NSERROR_OK) {
return error;
}
*c = (struct content *) sprite;
return NSERROR_OK;
}
/**
* Convert a CONTENT_SPRITE for display.
*
* No conversion is necessary. We merely read the sprite dimensions.
*/
static bool nssprite_convert(struct content *c)
{
nssprite_content *nssprite = (nssprite_content *) c;
union content_msg_data msg_data;
struct rosprite_mem_context* ctx;
const char *data;
unsigned long size;
char *title;
data = content__get_source_data(c, &size);
ERRCHK(rosprite_create_mem_context((uint8_t *) data, size, &ctx));
struct rosprite_area* sprite_area;
ERRCHK(rosprite_load(rosprite_mem_reader, ctx, &sprite_area));
rosprite_destroy_mem_context(ctx);
nssprite->sprite_area = sprite_area;
assert(sprite_area
->sprite_count
> 0);
struct rosprite* sprite = sprite_area->sprites[0];
nssprite->bitmap = bitmap_create(sprite->width, sprite->height, BITMAP_NEW);
if (!nssprite->bitmap) {
msg_data.error = messages_get("NoMemory");
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
}
uint32_t* imagebuf = (uint32_t *)bitmap_get_buffer(nssprite->bitmap);
if (!imagebuf) {
msg_data.error = messages_get("NoMemory");
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
}
unsigned char *spritebuf = (unsigned char *)sprite->image;
/* reverse byte order of each word */
for (uint32_t y = 0; y < sprite->height; y++) {
for (uint32_t x = 0; x < sprite->width; x++) {
int offset = 4 * (y * sprite->width + x);
*imagebuf = (spritebuf[offset] << 24) |
(spritebuf[offset + 1] << 16) |
(spritebuf[offset + 2] << 8) |
(spritebuf[offset + 3]);
imagebuf++;
}
}
c->width = sprite->width;
c->height = sprite->height;
/* set title text */
title = messages_get_buff("SpriteTitle",
nsurl_access_leaf(llcache_handle_get_url(c->llcache)),
c->width, c->height);
if (title != NULL) {
content__set_title(c, title);
}
bitmap_modified(nssprite->bitmap);
content_set_ready(c);
content_set_done(c);
content_set_status(c, ""); /* Done: update status bar */
return true;
}
/**
* Destroy a CONTENT_SPRITE and free all resources it owns.
*/
static void nssprite_destroy(struct content *c)
{
nssprite_content *nssprite = (nssprite_content *) c;
if (nssprite->sprite_area != NULL)
rosprite_destroy_sprite_area(nssprite->sprite_area);
if (nssprite->bitmap != NULL)
bitmap_destroy(nssprite->bitmap);
}
/**
* Redraw a CONTENT_SPRITE.
*/
static bool nssprite_redraw(struct content *c, struct content_redraw_data *data,
const struct rect *clip, const struct redraw_context *ctx)
{
nssprite_content *nssprite = (nssprite_content *) c;
bitmap_flags_t flags = BITMAPF_NONE;
if (data->repeat_x)
flags |= BITMAPF_REPEAT_X;
if (data->repeat_y)
flags |= BITMAPF_REPEAT_Y;
return ctx->plot->bitmap(data->x, data->y, data->width, data->height,
nssprite->bitmap, data->background_colour, flags);
}
static nserror nssprite_clone(const struct content *old, struct content **newc)
{
nssprite_content *sprite;
nserror error;
sprite
= calloc(1, sizeof(nssprite_content
)); if (sprite == NULL)
return NSERROR_NOMEM;
error = content__clone(old, &sprite->base);
if (error != NSERROR_OK) {
content_destroy(&sprite->base);
return error;
}
/* Simply replay convert */
if (old->status == CONTENT_STATUS_READY ||
old->status == CONTENT_STATUS_DONE) {
if (nssprite_convert(&sprite->base) == false) {
content_destroy(&sprite->base);
return NSERROR_CLONE_FAILED;
}
}
*newc = (struct content *) sprite;
return NSERROR_OK;
}
static void *nssprite_get_internal(const struct content *c, void *context)
{
nssprite_content *nssprite = (nssprite_content *) c;
return nssprite->bitmap;
}
static content_type nssprite_content_type(void)
{
return CONTENT_IMAGE;
}
static const content_handler nssprite_content_handler = {
.create = nssprite_create,
.data_complete = nssprite_convert,
.destroy = nssprite_destroy,
.redraw = nssprite_redraw,
.clone = nssprite_clone,
.get_internal = nssprite_get_internal,
.type = nssprite_content_type,
.no_share = false,
};
static const char *nssprite_types[] = {
"image/x-riscos-sprite"
};
CONTENT_FACTORY_REGISTER_TYPES(nssprite, nssprite_types, nssprite_content_handler);