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authormarha <marha@users.sourceforge.net>2009-10-08 13:15:52 +0000
committermarha <marha@users.sourceforge.net>2009-10-08 13:15:52 +0000
commita0c4815433ccd57322f4f7703ca35e9ccfa59250 (patch)
treef5213802ec12adb86ec3136001c1c29fe5343700 /mesalib/src/mesa/math/m_dotprod_tmp.h
parentc73dc01b6de45612b24dc2dd34fba24d81ebf46c (diff)
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Added MesaLib-7.6
Diffstat (limited to 'mesalib/src/mesa/math/m_dotprod_tmp.h')
-rw-r--r--mesalib/src/mesa/math/m_dotprod_tmp.h102
1 files changed, 102 insertions, 0 deletions
diff --git a/mesalib/src/mesa/math/m_dotprod_tmp.h b/mesalib/src/mesa/math/m_dotprod_tmp.h
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+
+/*
+ * Mesa 3-D graphics library
+ * Version: 3.5
+ *
+ * Copyright (C) 1999-2001 Brian Paul 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
+ * BRIAN PAUL 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.
+ */
+
+/*
+ * New (3.1) transformation code written by Keith Whitwell.
+ */
+
+
+/* Note - respects the stride of the output vector.
+ */
+static void TAG(dotprod_vec2)( GLfloat *out,
+ GLuint outstride,
+ const GLvector4f *coord_vec,
+ const GLfloat plane[4] )
+{
+ GLuint stride = coord_vec->stride;
+ GLfloat *coord = coord_vec->start;
+ GLuint count = coord_vec->count;
+
+ GLuint i;
+
+ const GLfloat plane0 = plane[0], plane1 = plane[1], plane3 = plane[3];
+
+ for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(out,outstride)) {
+ *out = (coord[0] * plane0 +
+ coord[1] * plane1 +
+ plane3);
+ }
+}
+
+static void TAG(dotprod_vec3)( GLfloat *out,
+ GLuint outstride,
+ const GLvector4f *coord_vec,
+ const GLfloat plane[4] )
+{
+ GLuint stride = coord_vec->stride;
+ GLfloat *coord = coord_vec->start;
+ GLuint count = coord_vec->count;
+
+ GLuint i;
+
+ const GLfloat plane0 = plane[0], plane1 = plane[1], plane2 = plane[2];
+ const GLfloat plane3 = plane[3];
+
+ for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(out,outstride)) {
+ *out = (coord[0] * plane0 +
+ coord[1] * plane1 +
+ coord[2] * plane2 +
+ plane3);
+ }
+}
+
+static void TAG(dotprod_vec4)( GLfloat *out,
+ GLuint outstride,
+ const GLvector4f *coord_vec,
+ const GLfloat plane[4] )
+{
+ GLuint stride = coord_vec->stride;
+ GLfloat *coord = coord_vec->start;
+ GLuint count = coord_vec->count;
+ GLuint i;
+
+ const GLfloat plane0 = plane[0], plane1 = plane[1], plane2 = plane[2];
+ const GLfloat plane3 = plane[3];
+
+ for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(out,outstride)) {
+ *out = (coord[0] * plane0 +
+ coord[1] * plane1 +
+ coord[2] * plane2 +
+ coord[3] * plane3);
+ }
+}
+
+
+static void TAG(init_dotprod)( void )
+{
+ _mesa_dotprod_tab[2] = TAG(dotprod_vec2);
+ _mesa_dotprod_tab[3] = TAG(dotprod_vec3);
+ _mesa_dotprod_tab[4] = TAG(dotprod_vec4);
+}