mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-12-28 06:49:41 +03:00
0d811963c1
The semantic patch tool appears to have missed some difficult to reason about callsites which have now been manually cleaned up
259 lines
6.2 KiB
C
259 lines
6.2 KiB
C
/*
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* Copyright 2008 James Shaw <js102@zepler.net>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** \file
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* Content for image/x-riscos-sprite (librosprite implementation).
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*
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*/
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#include <stdbool.h>
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#include <stdlib.h>
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#include <librosprite.h>
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#include "utils/log.h"
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#include "utils/messages.h"
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#include "content/content_protected.h"
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#include "desktop/gui_internal.h"
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#include "desktop/plotters.h"
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#include "image/bitmap.h"
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#include "image/nssprite.h"
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typedef struct nssprite_content {
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struct content base;
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struct bitmap *bitmap; /**< Created NetSurf bitmap */
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struct rosprite_area* sprite_area;
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} nssprite_content;
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#define ERRCHK(x) do { \
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rosprite_error err = x; \
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if (err == ROSPRITE_EOF) { \
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LOG("Got ROSPRITE_EOF when loading sprite file"); \
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return false; \
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} else if (err == ROSPRITE_BADMODE) { \
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LOG("Got ROSPRITE_BADMODE when loading sprite file"); \
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return false; \
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} else if (err == ROSPRITE_OK) { \
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} else { \
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return false; \
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} \
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} while(0)
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static nserror nssprite_create(const content_handler *handler,
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lwc_string *imime_type, const http_parameter *params,
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llcache_handle *llcache, const char *fallback_charset,
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bool quirks, struct content **c)
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{
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nssprite_content *sprite;
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nserror error;
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sprite = calloc(1, sizeof(nssprite_content));
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if (sprite == NULL)
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return NSERROR_NOMEM;
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error = content__init(&sprite->base, handler, imime_type, params,
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llcache, fallback_charset, quirks);
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if (error != NSERROR_OK) {
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free(sprite);
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return error;
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}
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*c = (struct content *) sprite;
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return NSERROR_OK;
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}
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/**
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* Convert a CONTENT_SPRITE for display.
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*
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* No conversion is necessary. We merely read the sprite dimensions.
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*/
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static bool nssprite_convert(struct content *c)
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{
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nssprite_content *nssprite = (nssprite_content *) c;
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union content_msg_data msg_data;
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struct rosprite_mem_context* ctx;
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const char *data;
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unsigned long size;
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char *title;
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data = content__get_source_data(c, &size);
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ERRCHK(rosprite_create_mem_context((uint8_t *) data, size, &ctx));
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struct rosprite_area* sprite_area;
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ERRCHK(rosprite_load(rosprite_mem_reader, ctx, &sprite_area));
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rosprite_destroy_mem_context(ctx);
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nssprite->sprite_area = sprite_area;
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assert(sprite_area->sprite_count > 0);
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struct rosprite* sprite = sprite_area->sprites[0];
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nssprite->bitmap = guit->bitmap->create(sprite->width, sprite->height, BITMAP_NEW);
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if (!nssprite->bitmap) {
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msg_data.error = messages_get("NoMemory");
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content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
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return false;
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}
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uint32_t* imagebuf = (uint32_t *)guit->bitmap->get_buffer(nssprite->bitmap);
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if (!imagebuf) {
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msg_data.error = messages_get("NoMemory");
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content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
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return false;
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}
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unsigned char *spritebuf = (unsigned char *)sprite->image;
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/* reverse byte order of each word */
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for (uint32_t y = 0; y < sprite->height; y++) {
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for (uint32_t x = 0; x < sprite->width; x++) {
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int offset = 4 * (y * sprite->width + x);
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*imagebuf = (spritebuf[offset] << 24) |
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(spritebuf[offset + 1] << 16) |
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(spritebuf[offset + 2] << 8) |
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(spritebuf[offset + 3]);
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imagebuf++;
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}
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}
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c->width = sprite->width;
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c->height = sprite->height;
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/* set title text */
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title = messages_get_buff("SpriteTitle",
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nsurl_access_leaf(llcache_handle_get_url(c->llcache)),
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c->width, c->height);
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if (title != NULL) {
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content__set_title(c, title);
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free(title);
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}
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guit->bitmap->modified(nssprite->bitmap);
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content_set_ready(c);
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content_set_done(c);
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content_set_status(c, ""); /* Done: update status bar */
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return true;
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}
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/**
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* Destroy a CONTENT_SPRITE and free all resources it owns.
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*/
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static void nssprite_destroy(struct content *c)
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{
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nssprite_content *nssprite = (nssprite_content *) c;
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if (nssprite->sprite_area != NULL)
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rosprite_destroy_sprite_area(nssprite->sprite_area);
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if (nssprite->bitmap != NULL)
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guit->bitmap->destroy(nssprite->bitmap);
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}
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/**
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* Redraw a CONTENT_SPRITE.
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*/
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static bool nssprite_redraw(struct content *c, struct content_redraw_data *data,
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const struct rect *clip, const struct redraw_context *ctx)
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{
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nssprite_content *nssprite = (nssprite_content *) c;
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bitmap_flags_t flags = BITMAPF_NONE;
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if (data->repeat_x)
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flags |= BITMAPF_REPEAT_X;
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if (data->repeat_y)
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flags |= BITMAPF_REPEAT_Y;
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return ctx->plot->bitmap(data->x, data->y, data->width, data->height,
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nssprite->bitmap, data->background_colour, flags);
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}
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static nserror nssprite_clone(const struct content *old, struct content **newc)
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{
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nssprite_content *sprite;
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nserror error;
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sprite = calloc(1, sizeof(nssprite_content));
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if (sprite == NULL)
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return NSERROR_NOMEM;
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error = content__clone(old, &sprite->base);
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if (error != NSERROR_OK) {
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content_destroy(&sprite->base);
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return error;
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}
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/* Simply replay convert */
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if (old->status == CONTENT_STATUS_READY ||
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old->status == CONTENT_STATUS_DONE) {
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if (nssprite_convert(&sprite->base) == false) {
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content_destroy(&sprite->base);
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return NSERROR_CLONE_FAILED;
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}
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}
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*newc = (struct content *) sprite;
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return NSERROR_OK;
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}
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static void *nssprite_get_internal(const struct content *c, void *context)
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{
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nssprite_content *nssprite = (nssprite_content *) c;
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return nssprite->bitmap;
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}
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static content_type nssprite_content_type(void)
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{
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return CONTENT_IMAGE;
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}
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static const content_handler nssprite_content_handler = {
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.create = nssprite_create,
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.data_complete = nssprite_convert,
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.destroy = nssprite_destroy,
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.redraw = nssprite_redraw,
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.clone = nssprite_clone,
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.get_internal = nssprite_get_internal,
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.type = nssprite_content_type,
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.no_share = false,
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};
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static const char *nssprite_types[] = {
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"image/x-riscos-sprite"
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};
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CONTENT_FACTORY_REGISTER_TYPES(nssprite, nssprite_types, nssprite_content_handler);
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