X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmath%2Fm_matrix.c;h=9d51021feda88cc88c20ac9c099936aa574e6a7e;hb=bd7f7aac56d3703f3d0fd55cd20f86f6c431b030;hp=b9f22d796b7bad31dd800c10d370cc9a1bad234d;hpb=56ccdf7e30f5bc1bc6b71d49bad2a9049ae170c4;p=mesa.git

diff --git a/src/mesa/math/m_matrix.c b/src/mesa/math/m_matrix.c
index b9f22d796b7..9d51021feda 100644
--- a/src/mesa/math/m_matrix.c
+++ b/src/mesa/math/m_matrix.c
@@ -1,6 +1,5 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.3
  *
  * Copyright (C) 1999-2005  Brian Paul   All Rights Reserved.
  *
@@ -17,9 +16,10 @@
  * 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.
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
  */
 
 
@@ -34,6 +34,7 @@
  */
 
 
+#include "c99_math.h"
 #include "main/glheader.h"
 #include "main/imports.h"
 #include "main/macros.h"
@@ -376,9 +377,9 @@ static GLboolean invert_matrix_general( GLmatrix *mat )
    r3[7] = 1.0, r3[4] = r3[5] = r3[6] = 0.0;
 
    /* choose pivot - or die */
-   if (FABSF(r3[0])>FABSF(r2[0])) SWAP_ROWS(r3, r2);
-   if (FABSF(r2[0])>FABSF(r1[0])) SWAP_ROWS(r2, r1);
-   if (FABSF(r1[0])>FABSF(r0[0])) SWAP_ROWS(r1, r0);
+   if (fabsf(r3[0])>fabsf(r2[0])) SWAP_ROWS(r3, r2);
+   if (fabsf(r2[0])>fabsf(r1[0])) SWAP_ROWS(r2, r1);
+   if (fabsf(r1[0])>fabsf(r0[0])) SWAP_ROWS(r1, r0);
    if (0.0 == r0[0])  return GL_FALSE;
 
    /* eliminate first variable     */
@@ -396,8 +397,8 @@ static GLboolean invert_matrix_general( GLmatrix *mat )
    if (s != 0.0) { r1[7] -= m1 * s; r2[7] -= m2 * s; r3[7] -= m3 * s; }
 
    /* choose pivot - or die */
-   if (FABSF(r3[1])>FABSF(r2[1])) SWAP_ROWS(r3, r2);
-   if (FABSF(r2[1])>FABSF(r1[1])) SWAP_ROWS(r2, r1);
+   if (fabsf(r3[1])>fabsf(r2[1])) SWAP_ROWS(r3, r2);
+   if (fabsf(r2[1])>fabsf(r1[1])) SWAP_ROWS(r2, r1);
    if (0.0 == r1[1])  return GL_FALSE;
 
    /* eliminate second variable */
@@ -410,7 +411,7 @@ static GLboolean invert_matrix_general( GLmatrix *mat )
    s = r1[7]; if (0.0 != s) { r2[7] -= m2 * s; r3[7] -= m3 * s; }
 
    /* choose pivot - or die */
-   if (FABSF(r3[2])>FABSF(r2[2])) SWAP_ROWS(r3, r2);
+   if (fabsf(r3[2])>fabsf(r2[2])) SWAP_ROWS(r3, r2);
    if (0.0 == r2[2])  return GL_FALSE;
 
    /* eliminate third variable */
@@ -508,7 +509,7 @@ static GLboolean invert_matrix_3d_general( GLmatrix *mat )
 
    det = pos + neg;
 
-   if (FABSF(det) < 1e-25)
+   if (fabsf(det) < 1e-25)
       return GL_FALSE;
 
    det = 1.0F / det;
@@ -1069,7 +1070,7 @@ _math_matrix_scale( GLmatrix *mat, GLfloat x, GLfloat y, GLfloat z )
    m[2] *= x;   m[6] *= y;   m[10] *= z;
    m[3] *= x;   m[7] *= y;   m[11] *= z;
 
-   if (FABSF(x - y) < 1e-8 && FABSF(x - z) < 1e-8)
+   if (fabsf(x - y) < 1e-8 && fabsf(x - z) < 1e-8)
       mat->flags |= MAT_FLAG_UNIFORM_SCALE;
    else
       mat->flags |= MAT_FLAG_GENERAL_SCALE;
@@ -1110,15 +1111,15 @@ _math_matrix_translate( GLmatrix *mat, GLfloat x, GLfloat y, GLfloat z )
  * Transforms Normalized Device Coords to window/Z values.
  */
 void
-_math_matrix_viewport(GLmatrix *m, GLint x, GLint y, GLint width, GLint height,
-                      GLfloat zNear, GLfloat zFar, GLfloat depthMax)
+_math_matrix_viewport(GLmatrix *m, const double scale[3],
+                      const double translate[3], double depthMax)
 {
-   m->m[MAT_SX] = (GLfloat) width / 2.0F;
-   m->m[MAT_TX] = m->m[MAT_SX] + x;
-   m->m[MAT_SY] = (GLfloat) height / 2.0F;
-   m->m[MAT_TY] = m->m[MAT_SY] + y;
-   m->m[MAT_SZ] = depthMax * ((zFar - zNear) / 2.0F);
-   m->m[MAT_TZ] = depthMax * ((zFar - zNear) / 2.0F + zNear);
+   m->m[MAT_SX] = scale[0];
+   m->m[MAT_TX] = translate[0];
+   m->m[MAT_SY] = scale[1];
+   m->m[MAT_TY] = translate[1];
+   m->m[MAT_SZ] = depthMax*scale[2];
+   m->m[MAT_TZ] = depthMax*translate[2];
    m->flags = MAT_FLAG_GENERAL_SCALE | MAT_FLAG_TRANSLATION;
    m->type = MATRIX_3D_NO_ROT;
 }
@@ -1468,10 +1469,10 @@ _math_matrix_loadf( GLmatrix *mat, const GLfloat *m )
 void
 _math_matrix_ctr( GLmatrix *m )
 {
-   m->m = (GLfloat *) _mesa_align_malloc( 16 * sizeof(GLfloat), 16 );
+   m->m = _mesa_align_malloc( 16 * sizeof(GLfloat), 16 );
    if (m->m)
       memcpy( m->m, Identity, sizeof(Identity) );
-   m->inv = (GLfloat *) _mesa_align_malloc( 16 * sizeof(GLfloat), 16 );
+   m->inv = _mesa_align_malloc( 16 * sizeof(GLfloat), 16 );
    if (m->inv)
       memcpy( m->inv, Identity, sizeof(Identity) );
    m->type = MATRIX_IDENTITY;
@@ -1488,14 +1489,11 @@ _math_matrix_ctr( GLmatrix *m )
 void
 _math_matrix_dtr( GLmatrix *m )
 {
-   if (m->m) {
-      _mesa_align_free( m->m );
-      m->m = NULL;
-   }
-   if (m->inv) {
-      _mesa_align_free( m->inv );
-      m->inv = NULL;
-   }
+   _mesa_align_free( m->m );
+   m->m = NULL;
+
+   _mesa_align_free( m->inv );
+   m->inv = NULL;
 }
 
 /*@}*/