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#include "texmem.h"
#include "simple_list.h"
#include "imports.h"
#include "macros.h"
#include "intel_tex.h"
static GLuint
driLog2( GLuint n )
{
GLuint log2;
for ( log2 = 1 ; n > 1 ; log2++ ) {
n >>= 1;
}
return log2;
}
static void calculate_heap_size( driTexHeap * heap, unsigned size,
unsigned nr_regions, unsigned alignmentShift )
{
unsigned l;
l = driLog2( (size - 1) / nr_regions );
if ( l < alignmentShift )
{
l = alignmentShift;
}
heap->logGranularity = l;
heap->size = size & ~((1L << l) - 1);
}
GLboolean
intel_driReinitTextureHeap( driTexHeap *heap,
unsigned size )
{
driTextureObject *t, *tmp;
/* Kick out everything:
*/
foreach_s ( t, tmp, & heap->texture_objects ) {
if ( t->tObj != NULL ) {
driSwapOutTextureObject( t );
}
else {
driDestroyTextureObject( t );
}
}
/* Destroy the memory manager:
*/
mmDestroy( heap->memory_heap );
/* Recreate the memory manager:
*/
calculate_heap_size(heap, size, heap->nrRegions, heap->alignmentShift);
heap->memory_heap = mmInit( 0, heap->size );
if ( heap->memory_heap == NULL ) {
fprintf(stderr, "driReinitTextureHeap: couldn't recreate memory heap\n");
FREE( heap );
return GL_FALSE;
}
make_empty_list( & heap->texture_objects );
return GL_TRUE;
}
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