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Change dma routine a bit. allow games in autoinit mode to fill dma buffer at the last moment.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2888
This commit is contained in:
Peter Veenstra 2007-06-14 18:06:59 +00:00
parent bc067b8752
commit 1773cb623f
1 changed files with 6 additions and 4 deletions
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10
src/hardware/sblaster.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: sblaster.cpp,v 1.64 2007-06-14 08:23:46 qbix79 Exp $ */
/* $Id: sblaster.cpp,v 1.65 2007-06-14 18:06:59 qbix79 Exp $ */
#include <iomanip>
#include <sstream>
@ -355,9 +355,11 @@ INLINE Bit8u decode_ADPCM_3_sample(Bit8u sample,Bit8u & reference,Bits& scale) {
static void GenerateDMASound(Bitu size) {
Bitu read=0;Bitu done=0;Bitu i=0;
if (sb.dma.left<=sb.dma.min) {
size=sb.dma.left;
}
if(sb.dma.autoinit) {
if (sb.dma.left <= size) size = sb.dma.left;
} else if (sb.dma.left <= sb.dma.min) size = sb.dma.left;
switch (sb.dma.mode) {
case DSP_DMA_2:
read=sb.dma.chan->Read(size,sb.dma.buf.b8);