From 2d8db39301349f67e17fc1b21e5d33d5f44cd521 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Tue, 27 Jun 2000 22:10:00 +0000
Subject: [PATCH] added aligned memory allocations (Gareth Hughes)

---
 src/mesa/main/context.c | 26 +++++++++++++-------------
 src/mesa/main/matrix.c  | 23 +++++++++++++++--------
 src/mesa/main/matrix.h  |  6 +++---
 src/mesa/x86/3dnow.c    |  4 ++--
 src/mesa/x86/x86.c      | 11 +++++------
 5 files changed, 38 insertions(+), 32 deletions(-)

diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 7ed7f12..eb9ed31 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -1,4 +1,4 @@
-/* $Id: context.c,v 1.72 2000/06/27 21:42:13 brianp Exp $ */
+/* $Id: context.c,v 1.73 2000/06/27 22:10:00 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -1391,7 +1391,7 @@ _mesa_initialize_context( GLcontext *ctx,
 
    ctx->PB = gl_alloc_pb();
    if (!ctx->PB) {
-      FREE( ctx->VB );
+      ALIGN_FREE( ctx->VB );
       FREE( ctx );
       return GL_FALSE;
    }
@@ -1404,9 +1404,9 @@ _mesa_initialize_context( GLcontext *ctx,
       /* allocate new group of display lists */
       ctx->Shared = alloc_shared_state();
       if (!ctx->Shared) {
-         FREE(ctx->VB);
-         FREE(ctx->PB);
-         FREE(ctx);
+         ALIGN_FREE( ctx->VB );
+         FREE( ctx->PB );
+         FREE( ctx );
          return GL_FALSE;
       }
    }
@@ -1436,9 +1436,9 @@ _mesa_initialize_context( GLcontext *ctx,
 
    if (!alloc_proxy_textures(ctx)) {
       free_shared_state(ctx, ctx->Shared);
-      FREE(ctx->VB);
-      FREE(ctx->PB);
-      FREE(ctx);
+      ALIGN_FREE( ctx->VB );
+      FREE( ctx->PB );
+      FREE( ctx );
       return GL_FALSE;
    }
 
@@ -1465,11 +1465,11 @@ _mesa_initialize_context( GLcontext *ctx,
    ctx->Save = (struct _glapi_table *) CALLOC(dispatchSize * sizeof(void*));
    if (!ctx->Exec || !ctx->Save) {
       free_shared_state(ctx, ctx->Shared);
-      FREE(ctx->VB);
-      FREE(ctx->PB);
+      ALIGN_FREE( ctx->VB );
+      FREE( ctx->PB );
       if (ctx->Exec)
-         FREE(ctx->Exec);
-      FREE(ctx);
+         FREE( ctx->Exec );
+      FREE( ctx );
    }
    _mesa_init_exec_table(ctx->Exec, dispatchSize);
    _mesa_init_dlist_table(ctx->Save, dispatchSize);
@@ -1612,7 +1612,7 @@ gl_free_context_data( GLcontext *ctx )
    /* Free cache of immediate buffers. */
    while (ctx->nr_im_queued-- > 0) {
       struct immediate * next = ctx->freed_im_queue->next;
-      FREE( ctx->freed_im_queue );
+      ALIGN_FREE( ctx->freed_im_queue );
       ctx->freed_im_queue = next;
    }
    gl_extensions_dtr(ctx);
diff --git a/src/mesa/main/matrix.c b/src/mesa/main/matrix.c
index 5eb5bb4..5db2542 100644
--- a/src/mesa/main/matrix.c
+++ b/src/mesa/main/matrix.c
@@ -1,4 +1,4 @@
-/* $Id: matrix.c,v 1.17 2000/04/08 18:57:45 brianp Exp $ */
+/* $Id: matrix.c,v 1.18 2000/06/27 22:10:00 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -1562,16 +1562,23 @@ void gl_calculate_model_project_matrix( GLcontext *ctx )
 
 void gl_matrix_ctr( GLmatrix *m )
 {
+   if ( m->m == 0 ) {
+      m->m = (GLfloat *) ALIGN_MALLOC( 16 * sizeof(GLfloat), 16 );
+   }
+   MEMCPY( m->m, Identity, sizeof(Identity) );
    m->inv = 0;
-   MEMCPY( m->m, Identity, sizeof(Identity));
    m->type = MATRIX_IDENTITY;
    m->flags = MAT_DIRTY_DEPENDENTS;
 }
 
 void gl_matrix_dtr( GLmatrix *m )
 {
-   if (m->inv != 0) {
-      FREE(m->inv);
+   if ( m->m != 0 ) {
+      ALIGN_FREE( m->m );
+      m->m = 0;
+   }
+   if ( m->inv != 0 ) {
+      ALIGN_FREE( m->inv );
       m->inv = 0;
    }
 }
@@ -1579,7 +1586,7 @@ void gl_matrix_dtr( GLmatrix *m )
 #if 0
 void gl_matrix_set_identity( GLmatrix *m )
 {
-   MEMCPY( m->m, Identity, sizeof(Identity));
+   MEMCPY( m->m, Identity, sizeof(Identity) );
    m->type = MATRIX_IDENTITY;
    m->flags = MAT_DIRTY_DEPENDENTS;
 }
@@ -1587,15 +1594,15 @@ void gl_matrix_set_identity( GLmatrix *m )
 
 void gl_matrix_alloc_inv( GLmatrix *m )
 {
-   if (m->inv == 0) {
-      m->inv = (GLfloat *)MALLOC(16*sizeof(GLfloat));
+   if ( m->inv == 0 ) {
+      m->inv = (GLfloat *) ALIGN_MALLOC( 16 * sizeof(GLfloat), 16 );
       MEMCPY( m->inv, Identity, 16 * sizeof(GLfloat) );
    }
 }
 
 void gl_matrix_copy( GLmatrix *to, const GLmatrix *from )
 {
-   MEMCPY( to->m, from->m, sizeof(Identity));
+   MEMCPY( to->m, from->m, sizeof(Identity) );
    to->flags = from->flags | MAT_DIRTY_DEPENDENTS;
    to->type = from->type;
 
diff --git a/src/mesa/main/matrix.h b/src/mesa/main/matrix.h
index d0fcdab..b142afb 100644
--- a/src/mesa/main/matrix.h
+++ b/src/mesa/main/matrix.h
@@ -1,4 +1,4 @@
-/* $Id: matrix.h,v 1.5 1999/12/10 20:01:06 brianp Exp $ */
+/* $Id: matrix.h,v 1.6 2000/06/27 22:10:00 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -34,8 +34,8 @@
 
 
 typedef struct {
-   GLfloat m[16];
-   GLfloat *inv;		/* optional */
+   GLfloat *m;			/* 16-byte aligned */
+   GLfloat *inv;		/* optional, 16-byte aligned */
    GLuint flags;
    GLuint type;
 } GLmatrix;
diff --git a/src/mesa/x86/3dnow.c b/src/mesa/x86/3dnow.c
index f61e369..dd085b6 100644
--- a/src/mesa/x86/3dnow.c
+++ b/src/mesa/x86/3dnow.c
@@ -1,4 +1,4 @@
-/* $Id: 3dnow.c,v 1.4 2000/06/14 21:55:11 brianp Exp $ */
+/* $Id: 3dnow.c,v 1.5 2000/06/27 22:10:01 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -50,7 +50,7 @@
 
 
 #define XFORM_ARGS      GLvector4f *to_vec,             \
-                        const GLmatrix *mat,            \
+                        const GLfloat m[16],            \
                         const GLvector4f *from_vec,     \
                         const GLubyte *mask,            \
                         const GLubyte flag
diff --git a/src/mesa/x86/x86.c b/src/mesa/x86/x86.c
index d6c4f31..2db200d 100644
--- a/src/mesa/x86/x86.c
+++ b/src/mesa/x86/x86.c
@@ -1,4 +1,4 @@
-/* $Id: x86.c,v 1.7 2000/05/26 16:17:00 brianp Exp $ */
+/* $Id: x86.c,v 1.8 2000/06/27 22:10:01 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -37,23 +37,23 @@
 #include "x86.h"
 
 #ifdef USE_X86_ASM
-extern void _ASMAPI gl_v16_x86_cliptest_points4(GLfloat *first_vert,
+extern void _ASMAPI gl_v16_x86_cliptest_points4( GLfloat *first_vert,
 					GLfloat *last_vert,
 					GLubyte *or_mask,
 					GLubyte *and_mask,
 					GLubyte *clip_mask );
 
   
-extern void _ASMAPI gl_v16_x86_general_xform(GLfloat *dest,
+extern void _ASMAPI gl_v16_x86_general_xform( GLfloat *dest,
 				     const GLfloat *m,
 				     const GLfloat *src,
 				     GLuint src_stride,
-				     GLuint count);
+					      GLuint count );
 #endif
 
 
 #define XFORM_ARGS 	GLvector4f *to_vec, 		\
-			const GLmatrix *mat, 		\
+			const GLfloat m[16], 		\
 			const GLvector4f *from_vec, 	\
 			const GLubyte *mask, 		\
 			const GLubyte flag
@@ -118,7 +118,6 @@ void gl_init_x86_asm_transforms( void )
    gl_test_all_transform_functions("x86");
 #endif
 
-
    gl_cliptest_points4_v16 = gl_v16_x86_cliptest_points4;
    gl_xform_points3_v16_general = gl_v16_x86_general_xform;
 #endif
-- 
2.7.4