[project @ 2003-09-10 22:46:56 by jmb]

It helps if you cvs add new files...

svn path=/import/netsurf/; revision=283

1 files changed, 111 insertions, 0 deletions

diff --git a/riscos/draw.c b/riscos/draw.c
new file mode 100644
index 000000000..b8a07e7f4
--- /dev/null
+++ b/riscos/draw.c
@@ -0,0 +1,111 @@
+/*
+ * This file is part of NetSurf, http://netsurf.sourceforge.net/
+ * Licensed under the GNU General Public License,
+ *                http://www.opensource.org/licenses/gpl-license
+ * Copyright 2003 John M Bell <jmb202@ecs.soton.ac.uk>
+ */
+
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+#include "netsurf/content/content.h"
+#include "netsurf/riscos/draw.h"
+#include "netsurf/utils/utils.h"
+#include "netsurf/utils/log.h"
+#include "oslib/drawfile.h"
+
+void draw_create(struct content *c)
+{
+	c->data.draw.data = xcalloc(0, 1);
+	c->data.draw.length = 0;
+}
+
+
+void draw_process_data(struct content *c, char *data, unsigned long size)
+{
+	c->data.draw.data = xrealloc(c->data.draw.data, c->data.draw.length + size);
+	memcpy(c->data.draw.data + c->data.draw.length, data, size);
+	c->data.draw.length += size;
+	c->size += size;
+}
+
+
+int draw_convert(struct content *c, unsigned int width, unsigned int height)
+{
+	os_error *error;
+	os_trfm *matrix = xcalloc(1, sizeof(os_trfm));
+	os_box *bbox = xcalloc(1, sizeof(os_box));
+
+        /* Full size image (1:1) */
+        matrix->entries[0][0] = 1 << 16;
+        matrix->entries[0][1] = 0;
+        matrix->entries[1][0] = 0;
+        matrix->entries[1][1] = 1 << 16;
+        matrix->entries[2][0] = 0;
+        matrix->entries[2][1] = 0;
+
+        /* BBox contents in Draw units (256*OS unit) */
+	error = xdrawfile_bbox(0, (drawfile_diagram*)(c->data.draw.data),
+	                       c->data.draw.length, matrix, bbox);
+
+        if (error) {
+                LOG(("error: %s", error->errmess));
+                xfree(matrix);
+                xfree(bbox);
+                return 1;
+        }
+
+        /* c->width & c->height stored as (OS units/2)
+           => divide by 512 to convert from draw units */
+	c->width = ((bbox->x1 - bbox->x0) / 512);
+	c->height = ((bbox->y1 - bbox->y0) / 512);
+	c->title = xcalloc(100, 1);
+	sprintf(c->title, "Draw image (%lux%lu, %lu bytes)", c->width,
+	                                c->height, c->data.draw.length);
+	c->status = CONTENT_STATUS_DONE;
+	xfree(matrix);
+	xfree(bbox);
+	return 0;
+}
+
+
+void draw_revive(struct content *c, unsigned int width, unsigned int height)
+{
+}
+
+
+void draw_reformat(struct content *c, unsigned int width, unsigned int height)
+{
+}
+
+
+void draw_destroy(struct content *c)
+{
+	xfree(c->data.draw.data);
+	xfree(c->title);
+}
+
+
+void draw_redraw(struct content *c, long x, long y,
+		unsigned long width, unsigned long height,
+		long clip_x0, long clip_y0, long clip_x1, long clip_y1)
+{
+        os_error *error;
+        unsigned int size;
+        os_box bbox;
+        os_trfm *matrix = xcalloc(1, sizeof(os_trfm));
+
+        /* Scaled image. Transform units (65536*OS units) */
+        matrix->entries[0][0] = ((width*65536) / (c->width*2));
+        matrix->entries[0][1] = 0;
+        matrix->entries[1][0] = 0;
+        matrix->entries[1][1] = ((height*65536) / (c->height*2));
+        /* Draw units. (x,y) = bottom left */
+        matrix->entries[2][0] = x * 256;
+        matrix->entries[2][1] = (y-height) * 256;
+
+	xdrawfile_render(0, (drawfile_diagram*)(c->data.draw.data),
+			c->data.draw.length, matrix, 0, 0);
+
+        xfree(matrix);
+}