diff options
Diffstat (limited to 'mesalib/src/mesa/math/m_vector.c')
| -rw-r--r-- | mesalib/src/mesa/math/m_vector.c | 368 |
1 files changed, 184 insertions, 184 deletions
diff --git a/mesalib/src/mesa/math/m_vector.c b/mesalib/src/mesa/math/m_vector.c index 7ca08f4c0..4bded31e0 100644 --- a/mesalib/src/mesa/math/m_vector.c +++ b/mesalib/src/mesa/math/m_vector.c @@ -1,184 +1,184 @@ -/*
- * 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.
- */
-
-
-#include "main/glheader.h"
-#include "main/imports.h"
-#include "main/macros.h"
-
-#include "m_vector.h"
-
-
-
-/**
- * Given a vector [count][4] of floats, set all the [][elt] values
- * to 0 (if elt = 0, 1, 2) or 1.0 (if elt = 3).
- */
-void
-_mesa_vector4f_clean_elem( GLvector4f *vec, GLuint count, GLuint elt )
-{
- static const GLubyte elem_bits[4] = {
- VEC_DIRTY_0,
- VEC_DIRTY_1,
- VEC_DIRTY_2,
- VEC_DIRTY_3
- };
- static const GLfloat clean[4] = { 0, 0, 0, 1 };
- const GLfloat v = clean[elt];
- GLfloat (*data)[4] = (GLfloat (*)[4])vec->start;
- GLuint i;
-
- for (i = 0; i < count; i++)
- data[i][elt] = v;
-
- vec->flags &= ~elem_bits[elt];
-}
-
-
-static const GLubyte size_bits[5] = {
- 0,
- VEC_SIZE_1,
- VEC_SIZE_2,
- VEC_SIZE_3,
- VEC_SIZE_4,
-};
-
-
-/**
- * Initialize GLvector objects.
- * \param v the vector object to initialize.
- * \param flags bitwise-OR of VEC_* flags
- * \param storage pointer to storage for the vector's data
- */
-void
-_mesa_vector4f_init( GLvector4f *v, GLbitfield flags, GLfloat (*storage)[4] )
-{
- v->stride = 4 * sizeof(GLfloat);
- v->size = 2; /* may change: 2-4 for vertices and 1-4 for texcoords */
- v->data = storage;
- v->start = (GLfloat *) storage;
- v->count = 0;
- v->flags = size_bits[4] | flags;
-}
-
-
-/**
- * Initialize GLvector objects and allocate storage.
- * \param v the vector object
- * \param flags bitwise-OR of VEC_* flags
- * \param count number of elements to allocate in vector
- * \param alignment desired memory alignment for the data (in bytes)
- */
-void
-_mesa_vector4f_alloc( GLvector4f *v, GLbitfield flags, GLuint count,
- GLuint alignment )
-{
- v->stride = 4 * sizeof(GLfloat);
- v->size = 2;
- v->storage = _mesa_align_malloc( count * 4 * sizeof(GLfloat), alignment );
- v->storage_count = count;
- v->start = (GLfloat *) v->storage;
- v->data = (GLfloat (*)[4]) v->storage;
- v->count = 0;
- v->flags = size_bits[4] | flags | VEC_MALLOC;
-}
-
-
-/**
- * Vector deallocation. Free whatever memory is pointed to by the
- * vector's storage field if the VEC_MALLOC flag is set.
- * DO NOT free the GLvector object itself, though.
- */
-void
-_mesa_vector4f_free( GLvector4f *v )
-{
- if (v->flags & VEC_MALLOC) {
- _mesa_align_free( v->storage );
- v->data = NULL;
- v->start = NULL;
- v->storage = NULL;
- v->flags &= ~VEC_MALLOC;
- }
-}
-
-
-/**
- * For debugging
- */
-void
-_mesa_vector4f_print( const GLvector4f *v, const GLubyte *cullmask,
- GLboolean culling )
-{
- static const GLfloat c[4] = { 0, 0, 0, 1 };
- static const char *templates[5] = {
- "%d:\t0, 0, 0, 1\n",
- "%d:\t%f, 0, 0, 1\n",
- "%d:\t%f, %f, 0, 1\n",
- "%d:\t%f, %f, %f, 1\n",
- "%d:\t%f, %f, %f, %f\n"
- };
-
- const char *t = templates[v->size];
- GLfloat *d = (GLfloat *)v->data;
- GLuint j, i = 0, count;
-
- printf("data-start\n");
- for (; d != v->start; STRIDE_F(d, v->stride), i++)
- printf(t, i, d[0], d[1], d[2], d[3]);
-
- printf("start-count(%u)\n", v->count);
- count = i + v->count;
-
- if (culling) {
- for (; i < count; STRIDE_F(d, v->stride), i++)
- if (cullmask[i])
- printf(t, i, d[0], d[1], d[2], d[3]);
- }
- else {
- for (; i < count; STRIDE_F(d, v->stride), i++)
- printf(t, i, d[0], d[1], d[2], d[3]);
- }
-
- for (j = v->size; j < 4; j++) {
- if ((v->flags & (1<<j)) == 0) {
-
- printf("checking col %u is clean as advertised ", j);
-
- for (i = 0, d = (GLfloat *) v->data;
- i < count && d[j] == c[j];
- i++, STRIDE_F(d, v->stride)) {
- /* no-op */
- }
-
- if (i == count)
- printf(" --> ok\n");
- else
- printf(" --> Failed at %u ******\n", i);
- }
- }
-}
+/* + * 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. + */ + + +#include "main/glheader.h" +#include "main/imports.h" +#include "main/macros.h" + +#include "m_vector.h" + + + +/** + * Given a vector [count][4] of floats, set all the [][elt] values + * to 0 (if elt = 0, 1, 2) or 1.0 (if elt = 3). + */ +void +_mesa_vector4f_clean_elem( GLvector4f *vec, GLuint count, GLuint elt ) +{ + static const GLubyte elem_bits[4] = { + VEC_DIRTY_0, + VEC_DIRTY_1, + VEC_DIRTY_2, + VEC_DIRTY_3 + }; + static const GLfloat clean[4] = { 0, 0, 0, 1 }; + const GLfloat v = clean[elt]; + GLfloat (*data)[4] = (GLfloat (*)[4])vec->start; + GLuint i; + + for (i = 0; i < count; i++) + data[i][elt] = v; + + vec->flags &= ~elem_bits[elt]; +} + + +static const GLubyte size_bits[5] = { + 0, + VEC_SIZE_1, + VEC_SIZE_2, + VEC_SIZE_3, + VEC_SIZE_4, +}; + + +/** + * Initialize GLvector objects. + * \param v the vector object to initialize. + * \param flags bitwise-OR of VEC_* flags + * \param storage pointer to storage for the vector's data + */ +void +_mesa_vector4f_init( GLvector4f *v, GLbitfield flags, GLfloat (*storage)[4] ) +{ + v->stride = 4 * sizeof(GLfloat); + v->size = 2; /* may change: 2-4 for vertices and 1-4 for texcoords */ + v->data = storage; + v->start = (GLfloat *) storage; + v->count = 0; + v->flags = size_bits[4] | flags; +} + + +/** + * Initialize GLvector objects and allocate storage. + * \param v the vector object + * \param flags bitwise-OR of VEC_* flags + * \param count number of elements to allocate in vector + * \param alignment desired memory alignment for the data (in bytes) + */ +void +_mesa_vector4f_alloc( GLvector4f *v, GLbitfield flags, GLuint count, + GLuint alignment ) +{ + v->stride = 4 * sizeof(GLfloat); + v->size = 2; + v->storage = _mesa_align_malloc( count * 4 * sizeof(GLfloat), alignment ); + v->storage_count = count; + v->start = (GLfloat *) v->storage; + v->data = (GLfloat (*)[4]) v->storage; + v->count = 0; + v->flags = size_bits[4] | flags | VEC_MALLOC; +} + + +/** + * Vector deallocation. Free whatever memory is pointed to by the + * vector's storage field if the VEC_MALLOC flag is set. + * DO NOT free the GLvector object itself, though. + */ +void +_mesa_vector4f_free( GLvector4f *v ) +{ + if (v->flags & VEC_MALLOC) { + _mesa_align_free( v->storage ); + v->data = NULL; + v->start = NULL; + v->storage = NULL; + v->flags &= ~VEC_MALLOC; + } +} + + +/** + * For debugging + */ +void +_mesa_vector4f_print( const GLvector4f *v, const GLubyte *cullmask, + GLboolean culling ) +{ + static const GLfloat c[4] = { 0, 0, 0, 1 }; + static const char *templates[5] = { + "%d:\t0, 0, 0, 1\n", + "%d:\t%f, 0, 0, 1\n", + "%d:\t%f, %f, 0, 1\n", + "%d:\t%f, %f, %f, 1\n", + "%d:\t%f, %f, %f, %f\n" + }; + + const char *t = templates[v->size]; + GLfloat *d = (GLfloat *)v->data; + GLuint j, i = 0, count; + + printf("data-start\n"); + for (; d != v->start; STRIDE_F(d, v->stride), i++) + printf(t, i, d[0], d[1], d[2], d[3]); + + printf("start-count(%u)\n", v->count); + count = i + v->count; + + if (culling) { + for (; i < count; STRIDE_F(d, v->stride), i++) + if (cullmask[i]) + printf(t, i, d[0], d[1], d[2], d[3]); + } + else { + for (; i < count; STRIDE_F(d, v->stride), i++) + printf(t, i, d[0], d[1], d[2], d[3]); + } + + for (j = v->size; j < 4; j++) { + if ((v->flags & (1<<j)) == 0) { + + printf("checking col %u is clean as advertised ", j); + + for (i = 0, d = (GLfloat *) v->data; + i < count && d[j] == c[j]; + i++, STRIDE_F(d, v->stride)) { + /* no-op */ + } + + if (i == count) + printf(" --> ok\n"); + else + printf(" --> Failed at %u ******\n", i); + } + } +} |