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-rw-r--r--image/rsvg.c326
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diff --git a/image/rsvg.c b/image/rsvg.c
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--- a/image/rsvg.c
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@@ -1,326 +0,0 @@
-/*
- * Copyright 2007 Rob Kendrick <rjek@netsurf-browser.org>
- *
- * 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 handler for image/svg using librsvg (implementation).
- *
- * SVG files are rendered to a NetSurf bitmap by creating a Cairo rendering
- * surface (content_rsvg_data.cs) over the bitmap's data, creating a Cairo
- * drawing context using that surface, and then passing that drawing context
- * to librsvg which then uses Cairo calls to plot the graphic to the bitmap.
- * We store this in content->bitmap, and then use the usual bitmap plotter
- * function to render it for redraw requests.
- */
-
-#include <stdlib.h>
-#include <stdbool.h>
-#include <assert.h>
-#include <string.h>
-#include <sys/types.h>
-
-#include <librsvg/rsvg.h>
-#ifndef RSVG_CAIRO_H
-#include <librsvg/rsvg-cairo.h>
-#endif
-
-#include "utils/log.h"
-#include "utils/utils.h"
-#include "utils/messages.h"
-#include "content/content_protected.h"
-#include "desktop/plotters.h"
-#include "desktop/gui_internal.h"
-
-#include "image/bitmap.h"
-#include "image/rsvg.h"
-
-typedef struct rsvg_content {
- struct content base;
-
- RsvgHandle *rsvgh; /**< Context handle for RSVG renderer */
- cairo_surface_t *cs; /**< The surface built inside a nsbitmap */
- cairo_t *ct; /**< Cairo drawing context */
- struct bitmap *bitmap; /**< Created NetSurf bitmap */
-} rsvg_content;
-
-static nserror rsvg_create_svg_data(rsvg_content *c)
-{
- union content_msg_data msg_data;
-
- c->rsvgh = NULL;
- c->cs = NULL;
- c->ct = NULL;
- c->bitmap = NULL;
-
- if ((c->rsvgh = rsvg_handle_new()) == NULL) {
- LOG("rsvg_handle_new() returned NULL.");
- msg_data.error = messages_get("NoMemory");
- content_broadcast(&c->base, CONTENT_MSG_ERROR, msg_data);
- return NSERROR_NOMEM;
- }
-
- return NSERROR_OK;
-}
-
-
-static nserror rsvg_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)
-{
- rsvg_content *svg;
- nserror error;
-
- svg = calloc(1, sizeof(rsvg_content));
- if (svg == NULL)
- return NSERROR_NOMEM;
-
- error = content__init(&svg->base, handler, imime_type, params,
- llcache, fallback_charset, quirks);
- if (error != NSERROR_OK) {
- free(svg);
- return error;
- }
-
- error = rsvg_create_svg_data(svg);
- if (error != NSERROR_OK) {
- free(svg);
- return error;
- }
-
- *c = (struct content *) svg;
-
- return NSERROR_OK;
-}
-
-
-static bool rsvg_process_data(struct content *c, const char *data,
- unsigned int size)
-{
- rsvg_content *d = (rsvg_content *) c;
- union content_msg_data msg_data;
- GError *err = NULL;
-
- if (rsvg_handle_write(d->rsvgh, (const guchar *)data, (gsize)size,
- &err) == FALSE) {
- LOG("rsvg_handle_write returned an error: %s", err->message);
- msg_data.error = err->message;
- content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
- return false;
- }
-
- return true;
-}
-
-/** Convert Cairo's ARGB output to NetSurf's favoured ABGR format. It converts
- * the data in-place.
- *
- * \param pixels Pixel data, in the form of ARGB. This will
- * be overwritten with new data in the form of ABGR.
- * \param width Width of the bitmap
- * \param height Height of the bitmap
- * \param rowstride Number of bytes to skip after each row (this
- * implementation requires this to be a multiple of 4.)
- */
-static inline void rsvg_argb_to_abgr(uint8_t *pixels,
- int width, int height, size_t rowstride)
-{
- uint8_t *p = pixels;
-
- for (int y = 0; y < height; y++) {
- for (int x = 0; x < width; x++) {
- /* Swap R and B */
- const uint8_t r = p[x+3];
-
- p[x+3] = p[x];
-
- p[x] = r;
- }
-
- p += rowstride;
- }
-}
-
-static bool rsvg_convert(struct content *c)
-{
- rsvg_content *d = (rsvg_content *) c;
- union content_msg_data msg_data;
- RsvgDimensionData rsvgsize;
- GError *err = NULL;
-
- if (rsvg_handle_close(d->rsvgh, &err) == FALSE) {
- LOG("rsvg_handle_close returned an error: %s", err->message);
- msg_data.error = err->message;
- content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
- return false;
- }
-
- assert(err == NULL);
-
- /* we should now be able to query librsvg for the natural size of the
- * graphic, so we can create our bitmap.
- */
-
- rsvg_handle_get_dimensions(d->rsvgh, &rsvgsize);
- c->width = rsvgsize.width;
- c->height = rsvgsize.height;
-
- if ((d->bitmap = guit->bitmap->create(c->width, c->height,
- BITMAP_NEW)) == NULL) {
- LOG("Failed to create bitmap for rsvg render.");
- msg_data.error = messages_get("NoMemory");
- content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
- return false;
- }
-
- if ((d->cs = cairo_image_surface_create_for_data(
- (unsigned char *)guit->bitmap->get_buffer(d->bitmap),
- CAIRO_FORMAT_ARGB32,
- c->width, c->height,
- guit->bitmap->get_rowstride(d->bitmap))) == NULL) {
- LOG("Failed to create Cairo image surface for rsvg render.");
- msg_data.error = messages_get("NoMemory");
- content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
- return false;
- }
-
- if ((d->ct = cairo_create(d->cs)) == NULL) {
- LOG("Failed to create Cairo drawing context for rsvg render.");
- msg_data.error = messages_get("NoMemory");
- content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
- return false;
- }
-
- rsvg_handle_render_cairo(d->rsvgh, d->ct);
- rsvg_argb_to_abgr(guit->bitmap->get_buffer(d->bitmap),
- c->width, c->height,
- guit->bitmap->get_rowstride(d->bitmap));
-
- guit->bitmap->modified(d->bitmap);
- content_set_ready(c);
- content_set_done(c);
- /* Done: update status bar */
- content_set_status(c, "");
-
- return true;
-}
-
-static bool rsvg_redraw(struct content *c, struct content_redraw_data *data,
- const struct rect *clip, const struct redraw_context *ctx)
-{
- rsvg_content *rsvgcontent = (rsvg_content *) c;
- bitmap_flags_t flags = BITMAPF_NONE;
-
- assert(rsvgcontent->bitmap != NULL);
-
- 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,
- rsvgcontent->bitmap, data->background_colour, flags);
-}
-
-static void rsvg_destroy(struct content *c)
-{
- rsvg_content *d = (rsvg_content *) c;
-
- if (d->bitmap != NULL) guit->bitmap->destroy(d->bitmap);
- if (d->rsvgh != NULL) g_object_unref(d->rsvgh);
- if (d->ct != NULL) cairo_destroy(d->ct);
- if (d->cs != NULL) cairo_surface_destroy(d->cs);
-
- return;
-}
-
-static nserror rsvg_clone(const struct content *old, struct content **newc)
-{
- rsvg_content *svg;
- nserror error;
- const char *data;
- unsigned long size;
-
- svg = calloc(1, sizeof(rsvg_content));
- if (svg == NULL)
- return NSERROR_NOMEM;
-
- error = content__clone(old, &svg->base);
- if (error != NSERROR_OK) {
- content_destroy(&svg->base);
- return error;
- }
-
- /* Simply replay create/process/convert */
- error = rsvg_create_svg_data(svg);
- if (error != NSERROR_OK) {
- content_destroy(&svg->base);
- return error;
- }
-
- data = content__get_source_data(&svg->base, &size);
- if (size > 0) {
- if (rsvg_process_data(&svg->base, data, size) == false) {
- content_destroy(&svg->base);
- return NSERROR_NOMEM;
- }
- }
-
- if (old->status == CONTENT_STATUS_READY ||
- old->status == CONTENT_STATUS_DONE) {
- if (rsvg_convert(&svg->base) == false) {
- content_destroy(&svg->base);
- return NSERROR_CLONE_FAILED;
- }
- }
-
- *newc = (struct content *) svg;
-
- return NSERROR_OK;
-}
-
-static void *rsvg_get_internal(const struct content *c, void *context)
-{
- rsvg_content *d = (rsvg_content *) c;
-
- return d->bitmap;
-}
-
-static content_type rsvg_content_type(void)
-{
- return CONTENT_IMAGE;
-}
-
-static const content_handler rsvg_content_handler = {
- .create = rsvg_create,
- .process_data = rsvg_process_data,
- .data_complete = rsvg_convert,
- .destroy = rsvg_destroy,
- .redraw = rsvg_redraw,
- .clone = rsvg_clone,
- .get_internal = rsvg_get_internal,
- .type = rsvg_content_type,
- .no_share = false,
-};
-
-static const char *rsvg_types[] = {
- "image/svg",
- "image/svg+xml"
-};
-
-CONTENT_FACTORY_REGISTER_TYPES(nsrsvg, rsvg_types, rsvg_content_handler);
-