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authorKeith Whitwell <keith@tungstengraphics.com>2000-11-16 21:05:34 +0000
committerKeith Whitwell <keith@tungstengraphics.com>2000-11-16 21:05:34 +0000
commit23caf20169ac38436ee9c13914f1d6aa7cf6bb5e (patch)
tree21307f7bbcaf9ee1e841d7e7bee130570a7b5b95 /src/mesa/math/m_dotprod_tmp.h
parent179516673211a2350e479d5321840291f339f5dd (diff)
Move the transform and lighting code to two new directories
math: Provides basic matrix and vector functionality that might be useful to multiple software t&l implementations, and is used by core mesa to manage the Model, Project, etc matrices. tnl: The real transform & lighting code from core mesa, including everything from glVertex3f through vertex buffer handling, transformation, clipping, lighting and handoff to a driver for rasterization. The interfaces of these can be further tightened up, but the basic splitting up of state and code move is done.
Diffstat (limited to 'src/mesa/math/m_dotprod_tmp.h')
-rw-r--r--src/mesa/math/m_dotprod_tmp.h128
1 files changed, 128 insertions, 0 deletions
diff --git a/src/mesa/math/m_dotprod_tmp.h b/src/mesa/math/m_dotprod_tmp.h
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+++ b/src/mesa/math/m_dotprod_tmp.h
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+/* $Id: m_dotprod_tmp.h,v 1.1 2000/11/16 21:05:41 keithw Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version: 3.1
+ *
+ * Copyright (C) 1999 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)( GLvector4f *out_vec,
+ GLuint elt,
+ const GLvector4f *coord_vec,
+ const GLfloat plane[4],
+ const GLubyte mask[])
+{
+ GLuint stride = coord_vec->stride;
+ GLfloat *coord = coord_vec->start;
+ GLuint count = coord_vec->count;
+
+ GLuint outstride = out_vec->stride;
+ GLfloat *out = out_vec->start + elt;
+ GLuint i;
+
+ const GLfloat plane0 = plane[0], plane1 = plane[1], plane3 = plane[3];
+
+ (void) mask;
+
+ for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(out,outstride)) {
+ CULL_CHECK {
+ *out = (coord[0] * plane0 +
+ coord[1] * plane1 +
+ plane3);
+ }
+ }
+ out_vec->count = coord_vec->count;
+}
+
+static void TAG(dotprod_vec3)( GLvector4f *out_vec,
+ GLuint elt,
+ const GLvector4f *coord_vec,
+ const GLfloat plane[4],
+ const GLubyte mask[])
+{
+ GLuint stride = coord_vec->stride;
+ GLfloat *coord = coord_vec->start;
+ GLuint count = coord_vec->count;
+
+ GLuint outstride = out_vec->stride;
+ GLfloat *out = out_vec->start + elt;
+ GLuint i;
+
+ const GLfloat plane0 = plane[0], plane1 = plane[1], plane2 = plane[2];
+ const GLfloat plane3 = plane[3];
+
+ (void) mask;
+
+ for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(out,outstride)) {
+ CULL_CHECK {
+ *out = (coord[0] * plane0 +
+ coord[1] * plane1 +
+ coord[2] * plane2 +
+ plane3);
+ }
+ }
+ out_vec->count = coord_vec->count;
+}
+
+static void TAG(dotprod_vec4)( GLvector4f *out_vec,
+ GLuint elt,
+ const GLvector4f *coord_vec,
+ const GLfloat plane[4],
+ const GLubyte mask[])
+{
+ GLuint stride = coord_vec->stride;
+ GLfloat *coord = coord_vec->start;
+ GLuint count = coord_vec->count;
+
+ GLuint outstride = out_vec->stride;
+ GLfloat *out = out_vec->start + elt;
+ GLuint i;
+
+ const GLfloat plane0 = plane[0], plane1 = plane[1], plane2 = plane[2];
+ const GLfloat plane3 = plane[3];
+
+ (void) mask;
+
+ for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(out,outstride)) {
+ CULL_CHECK {
+ *out = (coord[0] * plane0 +
+ coord[1] * plane1 +
+ coord[2] * plane2 +
+ coord[3] * plane3);
+ }
+ }
+ out_vec->count = coord_vec->count;
+}
+
+
+static void TAG(init_dotprod)( void )
+{
+ gl_dotprod_tab[IDX&1][2] = TAG(dotprod_vec2);
+ gl_dotprod_tab[IDX&1][3] = TAG(dotprod_vec3);
+ gl_dotprod_tab[IDX&1][4] = TAG(dotprod_vec4);
+}