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This commit is contained in:
Brian Paul 2000-09-14 23:13:51 +00:00
parent 23316033db
commit 64a23a0f9c
2 changed files with 13 additions and 5 deletions
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9
src/mesa/main/dd.h
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@ -1,4 +1,4 @@
/* $Id: dd.h,v 1.31 2000/09/08 21:44:55 brianp Exp $ */
/* $Id: dd.h,v 1.32 2000/09/14 23:13:51 brianp Exp $ */
/*
* Mesa 3-D graphics library
@ -856,8 +856,11 @@ struct dd_function_table {
void (*RegisterVB)( struct vertex_buffer *VB );
void (*UnregisterVB)( struct vertex_buffer *VB );
/* Do any processing (eg allocate memory) required to set up a new
* vertex_buffer.
/* When Mesa creates a new vertex buffer it calls Driver.RegisterVB()
* so the device driver can allocate its own vertex buffer data and
* hook it to the VB->driver_data pointer.
* When Mesa destroys a vertex buffer it calls Driver.UnegisterVB()
* so the driver can deallocate its own data attached to VB->driver_data.
*/

9
src/mesa/main/image.c
View file

@ -1,4 +1,4 @@
/* $Id: image.c,v 1.40 2000/09/12 21:10:25 brianp Exp $ */
/* $Id: image.c,v 1.41 2000/09/14 23:13:51 brianp Exp $ */
/*
* Mesa 3-D graphics library
@ -63,6 +63,11 @@ const struct gl_pixelstore_attrib _mesa_native_packing = {
/*
* Flip the 8 bits in each byte of the given array.
*
* XXX try this trick to flip bytes someday:
* v = ((v & 0x55555555) << 1) | ((v >> 1) & 0x55555555);
* v = ((v & 0x33333333) << 2) | ((v >> 2) & 0x33333333);
* v = ((v & 0x0f0f0f0f) << 4) | ((v >> 4) & 0x0f0f0f0f);
*/
static void
flip_bytes( GLubyte *p, GLuint n )
@ -70,7 +75,7 @@ flip_bytes( GLubyte *p, GLuint n )
register GLuint i, a, b;
for (i=0;i<n;i++) {
b = (GLuint) p[i];
b = (GLuint) p[i]; /* words are often faster than bytes */
a = ((b & 0x01) << 7) |
((b & 0x02) << 5) |
((b & 0x04) << 3) |