From 0fd2d56b0fc0ce74c5f3e5e23cb26b0d1a075ba1 Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Sun, 25 Dec 2011 17:27:22 +0100
Subject: mesa xkeyboard-config xserver git update 25 dec 2011

---
 mesalib/src/mesa/swrast/s_context.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'mesalib/src/mesa/swrast/s_context.h')

diff --git a/mesalib/src/mesa/swrast/s_context.h b/mesalib/src/mesa/swrast/s_context.h
index 446b990d9..af9e49ecb 100644
--- a/mesalib/src/mesa/swrast/s_context.h
+++ b/mesalib/src/mesa/swrast/s_context.h
@@ -422,5 +422,17 @@ _swrast_unmap_renderbuffers(struct gl_context *ctx);
 #define ATTRIB_LOOP_END } }
 
 
+/**
+ * Return the address of a pixel value in a mapped renderbuffer.
+ */
+static inline GLubyte *
+_swrast_pixel_address(struct gl_renderbuffer *rb, GLint x, GLint y)
+{
+   const GLint bpp = _mesa_get_format_bytes(rb->Format);
+   const GLint rowStride = rb->RowStride * bpp;
+   return (GLubyte *) rb->Data + y * rowStride + x * bpp;
+}
+
+
 
 #endif
-- 
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