1 files changed, 101 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/com32/lib/sys/vesa/fmtpixel.c b/contrib/syslinux-4.02/com32/lib/sys/vesa/fmtpixel.c
new file mode 100644
index 0000000..381fc21
--- /dev/null
+++ b/contrib/syslinux-4.02/com32/lib/sys/vesa/fmtpixel.c
@@ -0,0 +1,101 @@
+/* ----------------------------------------------------------------------- *
+ *
+ *   Copyright 2006-2008 H. Peter Anvin - All Rights Reserved
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * fmtpixel.c
+ *
+ * Functions to format a single pixel
+ */
+
+#include <inttypes.h>
+#include "video.h"
+
+/*
+ * Format a sequence of pixels.  The first argument is the line buffer;
+ * we can use it to write up to 4 bytes past the end of the last pixel.
+ * Return the place we should be copying from, this is usually the
+ * buffer address, but doesn't *have* to be.
+ */
+
+static const void *format_pxf_bgra32(void *ptr, const uint32_t * p, size_t n)
+{
+    (void)ptr;
+    (void)n;
+    return p;			/* No conversion needed! */
+}
+
+static const void *format_pxf_bgr24(void *ptr, const uint32_t * p, size_t n)
+{
+    char *q = ptr;
+
+    while (n--) {
+	*(uint32_t *) q = *p++;
+	q += 3;
+    }
+    return ptr;
+}
+
+static const void *format_pxf_le_rgb16_565(void *ptr, const uint32_t * p,
+					   size_t n)
+{
+    uint32_t bgra;
+    uint16_t *q = ptr;
+
+    while (n--) {
+	bgra = *p++;
+	*q++ =
+	    ((bgra >> 3) & 0x1f) +
+	    ((bgra >> (2 + 8 - 5)) & (0x3f << 5)) +
+	    ((bgra >> (3 + 16 - 11)) & (0x1f << 11));
+    }
+    return ptr;
+}
+
+static const void *format_pxf_le_rgb15_555(void *ptr, const uint32_t * p,
+					   size_t n)
+{
+    uint32_t bgra;
+    uint16_t *q = ptr;
+
+    while (n--) {
+	bgra = *p++;
+	*q++ =
+	    ((bgra >> 3) & 0x1f) +
+	    ((bgra >> (2 + 8 - 5)) & (0x1f << 5)) +
+	    ((bgra >> (3 + 16 - 10)) & (0x1f << 10));
+    }
+    return ptr;
+}
+
+__vesacon_format_pixels_t __vesacon_format_pixels;
+
+const __vesacon_format_pixels_t __vesacon_format_pixels_list[PXF_NONE] = {
+    [PXF_BGRA32] = format_pxf_bgra32,
+    [PXF_BGR24] = format_pxf_bgr24,
+    [PXF_LE_RGB16_565] = format_pxf_le_rgb16_565,
+    [PXF_LE_RGB15_555] = format_pxf_le_rgb15_555,
+};