From 7c9d99334705498932a272f68f74121953d4974a Mon Sep 17 00:00:00 2001
From: Brecht Van Lommel <brechtvanlommel@pandora.be>
Date: Mon, 4 Feb 2013 16:12:37 +0000
Subject: Fix cycles intersection issue with overlapping faces on windows 32
 bit and CPU without SSE3 support, due to 80 bit precision float register
 being used for one bounding box but not the one next to it.

---
 intern/cycles/kernel/kernel_sse3.cpp | 60 ++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 intern/cycles/kernel/kernel_sse3.cpp

(limited to 'intern/cycles/kernel/kernel_sse3.cpp')

diff --git a/intern/cycles/kernel/kernel_sse3.cpp b/intern/cycles/kernel/kernel_sse3.cpp
new file mode 100644
index 00000000000..9a8b389cf68
--- /dev/null
+++ b/intern/cycles/kernel/kernel_sse3.cpp
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2011, Blender Foundation.
+ *
+ * This program 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; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+/* Optimized CPU kernel entry points. This file is compiled with SSE3
+ * optimization flags and nearly all functions inlined, while kernel.cpp
+ * is compiled without for other CPU's. */
+
+#ifdef WITH_OPTIMIZED_KERNEL
+
+#include "kernel.h"
+#include "kernel_compat_cpu.h"
+#include "kernel_math.h"
+#include "kernel_types.h"
+#include "kernel_globals.h"
+#include "kernel_film.h"
+#include "kernel_path.h"
+#include "kernel_displace.h"
+
+CCL_NAMESPACE_BEGIN
+
+/* Path Tracing */
+
+void kernel_cpu_sse3_path_trace(KernelGlobals *kg, float *buffer, unsigned int *rng_state, int sample, int x, int y, int offset, int stride)
+{
+	kernel_path_trace(kg, buffer, rng_state, sample, x, y, offset, stride);
+}
+
+/* Tonemapping */
+
+void kernel_cpu_sse3_tonemap(KernelGlobals *kg, uchar4 *rgba, float *buffer, int sample, int resolution, int x, int y, int offset, int stride)
+{
+	kernel_film_tonemap(kg, rgba, buffer, sample, resolution, x, y, offset, stride);
+}
+
+/* Shader Evaluate */
+
+void kernel_cpu_sse3_shader(KernelGlobals *kg, uint4 *input, float4 *output, int type, int i)
+{
+	kernel_shader_evaluate(kg, input, output, (ShaderEvalType)type, i);
+}
+
+CCL_NAMESPACE_END
+
+#endif
+
-- 
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