From 480b2353d815540dca310edc8496da1d3f1b3295 Mon Sep 17 00:00:00 2001
From: Michael Drake <tlsa@netsurf-browser.org>
Date: Sun, 30 Sep 2012 09:40:46 +0100
Subject: Split 32bpp support into xrgba, xbgr, and common.  Should allow for
 BGR surfaces as well as RGB.

---
 src/plot/32bpp-xrgb8888.c | 74 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 src/plot/32bpp-xrgb8888.c

(limited to 'src/plot/32bpp-xrgb8888.c')

diff --git a/src/plot/32bpp-xrgb8888.c b/src/plot/32bpp-xrgb8888.c
new file mode 100644
index 0000000..548c970
--- /dev/null
+++ b/src/plot/32bpp-xrgb8888.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2009 Vincent Sanders <vince@simtec.co.uk>
+ * Copyright 2010 Michael Drake <tlsa@netsurf-browser.org>
+ *
+ * This file is part of libnsfb, http://www.netsurf-browser.org/
+ * Licenced under the MIT License,
+ *                http://www.opensource.org/licenses/mit-license.php
+ */
+
+#include <stdbool.h>
+#include <endian.h>
+#include <stdlib.h>
+
+#include "libnsfb.h"
+#include "libnsfb_plot.h"
+#include "libnsfb_plot_util.h"
+
+#include "nsfb.h"
+#include "plot.h"
+
+
+#define UNUSED __attribute__((unused)) 
+
+static inline uint32_t *get_xy_loc(nsfb_t *nsfb, int x, int y)
+{
+        return (void *)(nsfb->ptr + (y * nsfb->linelen) + (x << 2));
+}
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+static inline nsfb_colour_t pixel_to_colour(UNUSED nsfb_t *nsfb, uint32_t pixel)
+{
+        return (pixel >> 8) & ~0xFF000000U;
+}
+
+/* convert a colour value to a 32bpp pixel value ready for screen output */
+static inline uint32_t colour_to_pixel(UNUSED nsfb_t *nsfb, nsfb_colour_t c)
+{
+        return (c << 8);
+}
+#else /* __BYTE_ORDER == __BIG_ENDIAN */
+static inline nsfb_colour_t pixel_to_colour(UNUSED nsfb_t *nsfb, uint32_t pixel)
+{
+        return ((pixel & 0xFF) << 16) |
+                ((pixel & 0xFF00)) |
+                ((pixel & 0xFF0000) >> 16);
+}
+
+/* convert a colour value to a 32bpp pixel value ready for screen output */
+static inline uint32_t colour_to_pixel(UNUSED nsfb_t *nsfb, nsfb_colour_t c)
+{
+        return ((c & 0xff0000) >> 16) | (c & 0xff00) | ((c & 0xff) << 16);
+}
+#endif
+
+#define PLOT_TYPE uint32_t
+#define PLOT_LINELEN(ll) ((ll) >> 2)
+
+#include "32bpp-common.c"
+
+const nsfb_plotter_fns_t _nsfb_32bpp_xrgb8888_plotters = {
+        .line = line,
+        .fill = fill,
+        .point = point,
+        .bitmap = bitmap,
+        .glyph8 = glyph8,
+        .glyph1 = glyph1,
+        .readrect = readrect,
+};
+
+/*
+ * Local Variables:
+ * c-basic-offset:8
+ * End:
+ */
-- 
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