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driWaitForVBlank: Add support for secondary vertical blank.

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This commit is contained in:
Michel Dänzer
2006-09-28 14:03:41 +00:00
parent 6a2f5c6752
commit 7539fde334
2 changed files with 10 additions and 2 deletions
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src/mesa/drivers/dri/common/vblank.c
+8 -2
View File
@@ -326,9 +326,12 @@ driWaitForVBlank( const __DRIdrawablePrivate *priv, GLuint * vbl_seq,
deadline = original_seq + interval;
vbl.request.sequence = ((flags & VBLANK_FLAG_SYNC) != 0) ? 1 : 0;
vbl.request.type = DRM_VBLANK_RELATIVE;
if ( flags & VBLANK_FLAG_SECONDARY ) {
vbl.request.type |= DRM_VBLANK_SECONDARY;
}
vbl.request.sequence = ((flags & VBLANK_FLAG_SYNC) != 0) ? 1 : 0;
if ( do_wait( & vbl, vbl_seq, priv->driScreenPriv->fd ) != 0 ) {
return -1;
}
@@ -343,6 +346,9 @@ driWaitForVBlank( const __DRIdrawablePrivate *priv, GLuint * vbl_seq,
/* Wait until the target vertical blank. */
vbl.request.type = DRM_VBLANK_ABSOLUTE;
if ( flags & VBLANK_FLAG_SECONDARY ) {
vbl.request.type |= DRM_VBLANK_SECONDARY;
}
vbl.request.sequence = deadline;
if ( do_wait( & vbl, vbl_seq, priv->driScreenPriv->fd ) != 0 ) {
src/mesa/drivers/dri/common/vblank.h
+2
View File
@@ -42,6 +42,8 @@
*/
#define VBLANK_FLAG_NO_IRQ (1U << 7) /* DRM has no IRQ to wait on.
*/
#define VBLANK_FLAG_SECONDARY (1U << 8) /* Wait for secondary vblank.
*/
extern int driGetMSC32( __DRIscreenPrivate * priv, int64_t * count );
extern int driWaitForMSC32( __DRIdrawablePrivate *priv,