move image content handlers to accomodate core build changes

1 files changed, 259 insertions, 0 deletions

diff --git a/content/handlers/image/nssprite.c b/content/handlers/image/nssprite.c
new file mode 100644
index 000000000..fd651e0b0
--- /dev/null
+++ b/content/handlers/image/nssprite.c
@@ -0,0 +1,259 @@
+ /*
+ * 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 <stdbool.h>
+#include <stdlib.h>
+#include <librosprite.h>
+
+#include "utils/utils.h"
+#include "utils/log.h"
+#include "utils/messages.h"
+#include "content/content_protected.h"
+#include "desktop/gui_internal.h"
+#include "desktop/plotters.h"
+
+#include "bitmap.h"
+#include "nssprite.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 struct 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 = guit->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 *)guit->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);
+	}
+
+	guit->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)
+		guit->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);