mesa: consolidate code in _mesa_update_array_max_element()

This commit is contained in:
Brian Paul
2011-04-06 14:16:57 -06:00
parent de4cb19a1c
commit 7b8830d81d
3 changed files with 35 additions and 63 deletions

View File

@@ -50,6 +50,7 @@
#include "arrayobj.h"
#include "macros.h"
#include "mtypes.h"
#include "varray.h"
#include "main/dispatch.h"
@@ -279,37 +280,6 @@ remove_array_object( struct gl_context *ctx, struct gl_array_object *obj )
/**
* Compute the index of the last array element that can be safely accessed
* in a vertex array. We can really only do this when the array lives in
* a VBO.
* The array->_MaxElement field will be updated.
* Later in glDrawArrays/Elements/etc we can do some bounds checking.
*/
static void
compute_max_element(struct gl_client_array *array)
{
if (array->BufferObj->Name) {
/* Compute the max element we can access in the VBO without going
* out of bounds.
*/
array->_MaxElement = ((GLsizeiptrARB) array->BufferObj->Size
- (GLsizeiptrARB) array->Ptr + array->StrideB
- array->_ElementSize) / array->StrideB;
if (0)
printf("%s Object %u Size %u MaxElement %u\n",
__FUNCTION__,
array->BufferObj->Name,
(GLuint) array->BufferObj->Size,
array->_MaxElement);
}
else {
/* user-space array, no idea how big it is */
array->_MaxElement = 2 * 1000 * 1000 * 1000; /* just a big number */
}
}
/**
* Helper for update_arrays().
* \return min(current min, array->_MaxElement).
@@ -317,7 +287,7 @@ compute_max_element(struct gl_client_array *array)
static GLuint
update_min(GLuint min, struct gl_client_array *array)
{
compute_max_element(array);
_mesa_update_array_max_element(array);
if (array->Enabled)
return MIN2(min, array->_MaxElement);
else