1 files changed, 164 insertions, 0 deletions
diff --git a/amiga/bitmap.c b/amiga/bitmap.c
new file mode 100644
index 000000000..4c270a170
--- /dev/null
+++ b/amiga/bitmap.c
@@ -0,0 +1,164 @@
+/*
+ * Copyright 2008 Chris Young <chris@unsatisfactorysoftware.co.uk>
+ *
+ * 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 "assert.h"
+#include "image/bitmap.h"
+#include "amiga/bitmap.h"
+#include <proto/exec.h>
+
+/**
+ * Create a bitmap.
+ *
+ * \param  width   width of image in pixels
+ * \param  height  width of image in pixels
+ * \param  state   a flag word indicating the initial state
+ * \return an opaque struct bitmap, or NULL on memory exhaustion
+ */
+
+struct bitmap *bitmap_create(int width, int height, unsigned int state)
+{
+	struct bitmap *bitmap;
+
+	DebugPrintF("creating bitmap\n");
+
+	bitmap = AllocVec(sizeof(struct bitmap),MEMF_CLEAR);
+	if(bitmap)
+	{
+		bitmap->pixdata = AllocVec(width*height*4,MEMF_CLEAR);
+		bitmap->width = width;
+		bitmap->height = height;
+	}
+	return bitmap;
+}
+
+
+/**
+ * Return a pointer to the pixel data in a bitmap.
+ *
+ * \param  bitmap  a bitmap, as returned by bitmap_create()
+ * \return pointer to the pixel buffer
+ *
+ * The pixel data is packed as BITMAP_FORMAT, possibly with padding at the end
+ * of rows. The width of a row in bytes is given by bitmap_get_rowstride().
+ */
+
+char *bitmap_get_buffer(struct bitmap *bitmap)
+{
+	return bitmap->pixdata;
+}
+
+
+/**
+ * Find the width of a pixel row in bytes.
+ *
+ * \param  bitmap  a bitmap, as returned by bitmap_create()
+ * \return width of a pixel row in the bitmap
+ */
+
+size_t bitmap_get_rowstride(struct bitmap *bitmap)
+{
+	return (bitmap->width)*4;
+}
+
+
+/**
+ * Free a bitmap.
+ *
+ * \param  bitmap  a bitmap, as returned by bitmap_create()
+ */
+
+void bitmap_destroy(struct bitmap *bitmap)
+{
+	FreeVec(bitmap->pixdata);
+	FreeVec(bitmap);
+}
+
+
+/**
+ * Save a bitmap in the platform's native format.
+ *
+ * \param  bitmap  a bitmap, as returned by bitmap_create()
+ * \param  path    pathname for file
+ * \return true on success, false on error and error reported
+ */
+
+bool bitmap_save(struct bitmap *bitmap, const char *path, unsigned flags)
+{
+	return true;
+}
+
+
+/**
+ * The bitmap image has changed, so flush any persistant cache.
+ *
+ * \param  bitmap  a bitmap, as returned by bitmap_create()
+ */
+void bitmap_modified(struct bitmap *bitmap) {
+}
+
+
+/**
+ * The bitmap image can be suspended.
+ *
+ * \param  bitmap  	a bitmap, as returned by bitmap_create()
+ * \param  private_word	a private word to be returned later
+ * \param  suspend	the function to be called upon suspension
+ * \param  resume	the function to be called when resuming
+ */
+void bitmap_set_suspendable(struct bitmap *bitmap, void *private_word,
+		void (*invalidate)(struct bitmap *bitmap, void *private_word)) {
+}
+
+/**
+ * Sets whether a bitmap should be plotted opaque
+ *
+ * \param  bitmap  a bitmap, as returned by bitmap_create()
+ * \param  opaque  whether the bitmap should be plotted opaque
+ */
+void bitmap_set_opaque(struct bitmap *bitmap, bool opaque)
+{
+	assert(bitmap);
+/* todo: set bitmap as opaque */
+}
+
+
+/**
+ * Tests whether a bitmap has an opaque alpha channel
+ *
+ * \param  bitmap  a bitmap, as returned by bitmap_create()
+ * \return whether the bitmap is opaque
+ */
+bool bitmap_test_opaque(struct bitmap *bitmap)
+{
+	assert(bitmap);
+/* todo: test if bitmap as opaque */
+	return false;
+}
+
+
+/**
+ * Gets whether a bitmap should be plotted opaque
+ *
+ * \param  bitmap  a bitmap, as returned by bitmap_create()
+ */
+bool bitmap_get_opaque(struct bitmap *bitmap)
+{
+	assert(bitmap);
+/* todo: get whether bitmap is opaque */
+	return false;
+}