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-rw-r--r--content/handlers/image/image.c159
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diff --git a/content/handlers/image/image.c b/content/handlers/image/image.c
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+/*
+ * Copyright 2011 John-Mark Bell <jmb@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/>.
+ */
+
+#include <stdbool.h>
+#include <stdlib.h>
+
+#include "utils/utils.h"
+#include "utils/log.h"
+#include "utils/messages.h"
+#include "content/content.h"
+#include "desktop/plotters.h"
+#include "desktop/gui_internal.h"
+
+#include "bitmap.h"
+#include "bmp.h"
+#include "gif.h"
+#include "ico.h"
+#include "jpeg.h"
+#include "nssprite.h"
+#include "png.h"
+#include "rsvg.h"
+#include "svg.h"
+#include "image.h"
+
+/**
+ * Initialise image content handlers
+ *
+ * \return NSERROR_OK on success, appropriate error otherwise.
+ */
+nserror image_init(void)
+{
+ nserror error = NSERROR_OK;
+
+#ifdef WITH_BMP
+ error = nsbmp_init();
+ if (error != NSERROR_OK)
+ return error;
+#endif
+
+#ifdef WITH_GIF
+ error = nsgif_init();
+ if (error != NSERROR_OK)
+ return error;
+#endif
+
+#ifdef WITH_BMP
+ error = nsico_init();
+ if (error != NSERROR_OK)
+ return error;
+#endif
+
+#ifdef WITH_JPEG
+ error = nsjpeg_init();
+ if (error != NSERROR_OK)
+ return error;
+#endif
+
+#ifdef WITH_PNG
+ error = nspng_init();
+ if (error != NSERROR_OK)
+ return error;
+#endif
+
+#ifdef WITH_NSSPRITE
+ error = nssprite_init();
+ if (error != NSERROR_OK)
+ return error;
+#endif
+
+ /* Prefer rsvg over libsvgtiny for svgs */
+#ifdef WITH_NS_SVG
+ error = svg_init();
+ if (error != NSERROR_OK)
+ return error;
+#endif
+#ifdef WITH_RSVG
+ error = nsrsvg_init();
+ if (error != NSERROR_OK)
+ return error;
+#endif
+
+ return error;
+}
+
+
+bool image_bitmap_plot(struct bitmap *bitmap,
+ struct content_redraw_data *data,
+ const struct rect *clip,
+ const struct redraw_context *ctx)
+{
+ bitmap_flags_t flags = BITMAPF_NONE;
+
+ int width;
+ int height;
+ unsigned char *pixel;
+ plot_style_t fill_style;
+ struct rect area;
+
+ width = guit->bitmap->get_width(bitmap);
+ if (width == 1) {
+ height = guit->bitmap->get_height(bitmap);
+ if (height == 1) {
+ /* optimise 1x1 bitmap plot */
+ pixel = guit->bitmap->get_buffer(bitmap);
+ fill_style.fill_colour = pixel_to_colour(pixel);
+
+ if (guit->bitmap->get_opaque(bitmap) ||
+ ((fill_style.fill_colour & 0xff000000) == 0xff000000)) {
+
+ area = *clip;
+
+ if (data->repeat_x != true) {
+ area.x0 = data->x;
+ area.x1 = data->x + data->width;
+ }
+
+ if (data->repeat_y != true) {
+ area.y0 = data->y;
+ area.y1 = data->y + data->height;
+ }
+
+ fill_style.stroke_type = PLOT_OP_TYPE_NONE;
+ fill_style.fill_type = PLOT_OP_TYPE_SOLID;
+
+ return ctx->plot->rectangle(area.x0, area.y0,
+ area.x1, area.y1,
+ &fill_style);
+
+ } else if ((fill_style.fill_colour & 0xff000000) == 0) {
+ /* transparent pixel used as spacer, skip it */
+ return true;
+ }
+ }
+ }
+
+ /* do the plot */
+ 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,
+ bitmap, data->background_colour, flags);
+}