From 2ec96e508c0c1a0b47ea2cfb89a50e5831567cd1 Mon Sep 17 00:00:00 2001 From: Michael Drake Date: Mon, 9 May 2011 09:57:40 +0000 Subject: Put RISC OS filetype content handlers in their own directory. svn path=/trunk/netsurf/; revision=12336 --- riscos/content-handlers/sprite.c | 311 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 311 insertions(+) create mode 100644 riscos/content-handlers/sprite.c (limited to 'riscos/content-handlers/sprite.c') diff --git a/riscos/content-handlers/sprite.c b/riscos/content-handlers/sprite.c new file mode 100644 index 000000000..de65faca6 --- /dev/null +++ b/riscos/content-handlers/sprite.c @@ -0,0 +1,311 @@ +/* + * Copyright 2003 John M Bell + * + * 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 . + */ + +/** \file + * Content for image/x-riscos-sprite (RISC OS implementation). + * + * No conversion is necessary: we can render RISC OS sprites directly under + * RISC OS. + */ + +#include +#include +#include "oslib/osspriteop.h" +#include "utils/config.h" +#include "content/content_protected.h" +#include "desktop/plotters.h" +#include "riscos/gui.h" +#include "riscos/image.h" +#include "riscos/content-handlers/sprite.h" +#include "utils/config.h" +#include "utils/log.h" +#include "utils/messages.h" +#include "utils/talloc.h" +#include "utils/utils.h" + +#ifdef WITH_SPRITE + +typedef struct sprite_content { + struct content base; + + void *data; +} sprite_content; + +static nserror sprite_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); +static bool sprite_convert(struct content *c); +static void sprite_destroy(struct content *c); +static bool sprite_redraw(struct content *c, int x, int y, + int width, int height, const struct rect *clip, + float scale, colour background_colour, + bool repeat_x, bool repeat_y); +static nserror sprite_clone(const struct content *old, struct content **newc); +static content_type sprite_content_type(lwc_string *mime_type); + +static const content_handler sprite_content_handler = { + sprite_create, + NULL, + sprite_convert, + NULL, + sprite_destroy, + NULL, + NULL, + NULL, + sprite_redraw, + NULL, + NULL, + sprite_clone, + NULL, + sprite_content_type, + false +}; + +static const char *sprite_types[] = { + "image/x-riscos-sprite" +}; + +static lwc_string *sprite_mime_types[NOF_ELEMENTS(sprite_types)]; + +nserror sprite_init(void) +{ + uint32_t i; + lwc_error lerror; + nserror error; + + for (i = 0; i < NOF_ELEMENTS(sprite_mime_types); i++) { + lerror = lwc_intern_string(sprite_types[i], + strlen(sprite_types[i]), + &sprite_mime_types[i]); + if (lerror != lwc_error_ok) { + error = NSERROR_NOMEM; + goto error; + } + + error = content_factory_register_handler(sprite_mime_types[i], + &sprite_content_handler); + if (error != NSERROR_OK) + goto error; + } + + return NSERROR_OK; + +error: + sprite_fini(); + + return error; +} + +void sprite_fini(void) +{ + uint32_t i; + + for (i = 0; i < NOF_ELEMENTS(sprite_mime_types); i++) { + if (sprite_mime_types[i] != NULL) + lwc_string_unref(sprite_mime_types[i]); + } +} + +nserror sprite_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) +{ + sprite_content *sprite; + nserror error; + + sprite = talloc_zero(0, sprite_content); + if (sprite == NULL) + return NSERROR_NOMEM; + + error = content__init(&sprite->base, handler, imime_type, params, + llcache, fallback_charset, quirks); + if (error != NSERROR_OK) { + talloc_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. + */ + +bool sprite_convert(struct content *c) +{ + sprite_content *sprite = (sprite_content *) c; + os_error *error; + int w, h; + union content_msg_data msg_data; + const char *source_data; + unsigned long source_size; + const void *sprite_data; + char title[100]; + + source_data = content__get_source_data(c, &source_size); + + sprite_data = source_data - 4; + osspriteop_area *area = (osspriteop_area*) sprite_data; + sprite->data = area; + + /* check for bad data */ + if ((int)source_size + 4 != area->used) { + msg_data.error = messages_get("BadSprite"); + content_broadcast(c, CONTENT_MSG_ERROR, msg_data); + return false; + } + + error = xosspriteop_read_sprite_info(osspriteop_PTR, + (osspriteop_area *)0x100, + (osspriteop_id) ((char *) area + area->first), + &w, &h, NULL, NULL); + if (error) { + LOG(("xosspriteop_read_sprite_info: 0x%x: %s", + error->errnum, error->errmess)); + msg_data.error = error->errmess; + content_broadcast(c, CONTENT_MSG_ERROR, msg_data); + return false; + } + + c->width = w; + c->height = h; + snprintf(title, sizeof(title), messages_get("SpriteTitle"), c->width, + c->height, source_size); + content__set_title(c, title); + content_set_ready(c); + content_set_done(c); + /* Done: update status bar */ + content_set_status(c, ""); + return true; +} + + +/** + * Destroy a CONTENT_SPRITE and free all resources it owns. + */ + +void sprite_destroy(struct content *c) +{ + /* do not free c->data.sprite.data at it is simply a pointer to + * 4 bytes beforec->source_data. */ +} + + +/** + * Redraw a CONTENT_SPRITE. + */ + +bool sprite_redraw(struct content *c, int x, int y, + int width, int height, const struct rect *clip, + float scale, colour background_colour, + bool repeat_x, bool repeat_y) +{ + sprite_content *sprite = (sprite_content *) c; + + if (plot.flush && !plot.flush()) + return false; + + return image_redraw(sprite->data, + ro_plot_origin_x + x * 2, + ro_plot_origin_y - y * 2, + width, height, + c->width, + c->height, + background_colour, + false, false, false, + IMAGE_PLOT_OS); +} + +nserror sprite_clone(const struct content *old, struct content **newc) +{ + sprite_content *sprite; + nserror error; + + sprite = talloc_zero(0, sprite_content); + if (sprite == NULL) + return NSERROR_NOMEM; + + error = content__clone(old, &sprite->base); + if (error != NSERROR_OK) { + content_destroy(&sprite->base); + return error; + } + + /* Simply rerun convert */ + if (old->status == CONTENT_STATUS_READY || + old->status == CONTENT_STATUS_DONE) { + if (sprite_convert(&sprite->base) == false) { + content_destroy(&sprite->base); + return NSERROR_CLONE_FAILED; + } + } + + *newc = (struct content *) sprite; + + return NSERROR_OK; +} + +content_type sprite_content_type(lwc_string *mime_type) +{ + return CONTENT_IMAGE; +} + +#endif + + +/** + * Returns the bit depth of a sprite + * + * \param s sprite + * \return depth in bpp + */ + +byte sprite_bpp(const osspriteop_header *s) +{ + /* bit 31 indicates the presence of a full alpha channel + * rather than a binary mask */ + int type = ((unsigned)s->mode >> osspriteop_TYPE_SHIFT) & 15; + byte bpp = 0; + + switch (type) { + case osspriteop_TYPE_OLD: + { + bits psr; + int val; + if (!xos_read_mode_variable(s->mode, + os_MODEVAR_LOG2_BPP, &val, &psr) && + !(psr & _C)) + bpp = 1 << val; + } + break; + case osspriteop_TYPE1BPP: bpp = 1; break; + case osspriteop_TYPE2BPP: bpp = 2; break; + case osspriteop_TYPE4BPP: bpp = 4; break; + case osspriteop_TYPE8BPP: bpp = 8; break; + case osspriteop_TYPE16BPP: bpp = 16; break; + case osspriteop_TYPE32BPP: bpp = 32; break; + case osspriteop_TYPE_CMYK: bpp = 32; break; + } + return bpp; +} -- cgit v1.2.3