Start utilities for drawing

[metawatch.git] / mw_utility.h

diff --git a/mw_utility.h b/mw_utility.h
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+/*
+ * (c) 2011 Siegen, Germany by Nils Faerber <nils.faerber@kernelconcepts.de>
+ *
+ * license LGPL
+ */
+
+#ifndef _MW_UTILITY_H
+#define _MW_UTILITY_H
+
+typedef struct {
+       unsigned int res_x;
+       unsigned int res_y;
+       unsigned char bpp;
+       void *pbuf;
+} mw_buffer;
+
+typedef enum {
+       MW_BLACK = 0,
+       MW_WHITE,
+} mw_color;
+
+mw_buffer *mw_alloc_pbuffer(unsigned int res_x, unsigned int res_y, unsigned int bpp);
+
+void mw_free_pbuffer(mw_buffer *mwbuf);
+
+void mw_dump_mw_buffer(mw_buffer *mwbuf);
+
+
+/* clear/fill entire buffer with color */
+void mw_buf_clear(mw_buffer *mwbuf, mw_color clr);
+
+/* draw a single pixel */
+void mw_buf_draw_pixel(mw_buffer *mwbuf, unsigned int x, unsigned int y, mw_color clr);
+
+
+#endif
+