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| /* |
| * 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) { |
| free(sprite); |
| 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); |
| free(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); |