* Authors:
* Ian Romanick <idr@us.ibm.com>
*/
-/* $XFree86:$ */
-#include "glheader.h"
+#include "main/glheader.h"
#include "xf86drm.h"
-#include "mtypes.h"
-#include "macros.h"
-#include "dd.h"
+#include "main/mtypes.h"
+#include "main/macros.h"
+#include "main/dd.h"
#include "vblank.h"
#include "xmlpool.h"
-static unsigned int msc_to_vblank(__DRIdrawablePrivate * dPriv, int64_t msc)
+static unsigned int msc_to_vblank(__DRIdrawable * dPriv, int64_t msc)
{
return (unsigned int)(msc - dPriv->msc_base + dPriv->vblank_base);
}
-static int64_t vblank_to_msc(__DRIdrawablePrivate * dPriv, unsigned int vblank)
+static int64_t vblank_to_msc(__DRIdrawable * dPriv, unsigned int vblank)
{
return (int64_t)(vblank - dPriv->vblank_base + dPriv->msc_base);
}
* \return Zero is returned on success. A negative errno value
* is returned on failure.
*/
-int driDrawableGetMSC32( __DRIscreenPrivate * priv,
- __DRIdrawablePrivate * dPriv,
+int driDrawableGetMSC32( __DRIscreen * priv,
+ __DRIdrawable * dPriv,
int64_t * count)
{
drmVBlank vbl;
return ret;
}
-/**
- * Get the current MSC refresh counter.
- *
- * Stores the 64-bit count of vertical refreshes since some (arbitrary)
- * point in time in \c count. Unless the value wraps around, which it
- * may, it will never decrease.
- *
- * \warning This function is called from \c glXGetVideoSyncSGI, which expects
- * a \c count of type \c unsigned (32-bit), and \c glXGetSyncValuesOML, which
- * expects a \c count of type \c int64_t (signed 64-bit). The kernel ioctl
- * currently always returns a \c sequence of type \c unsigned.
- *
- * Since this function doesn't take a drawable, it may end up getting the MSC
- * value from a pipe not associated with the caller's context, resuling in
- * undesired behavior.
- *
- * \param priv Pointer to the DRI screen private struct.
- * \param count Storage to hold MSC counter.
- * \return Zero is returned on success. A negative errno value
- * is returned on failure.
- */
-int driGetMSC32( __DRIscreenPrivate * priv, int64_t * count )
-{
- return driDrawableGetMSC32(priv, NULL, count);
-}
-
/****************************************************************************/
/**
* Wait for a specified refresh count. This implements most of the
* \return Zero on success or \c GLX_BAD_CONTEXT on failure.
*/
-int driWaitForMSC32( __DRIdrawablePrivate *priv,
+int driWaitForMSC32( __DRIdrawable *priv,
int64_t target_msc, int64_t divisor, int64_t remainder,
int64_t * msc )
{
if ( divisor != 0 ) {
- unsigned int target = (unsigned int)target_msc;
- unsigned int next = target;
- unsigned int r;
+ int64_t next = target_msc;
+ int64_t r;
int dont_wait = (target_msc == 0);
do {
*msc = vblank_to_msc(priv, vbl.reply.sequence);
- dont_wait = 0;
- if (target_msc != 0 && *msc == target)
+ if (!dont_wait && *msc == next)
break;
+ dont_wait = 0;
/* Assuming the wait-done test fails, the next refresh to wait for
* will be one that satisfies (MSC % divisor) == remainder. The
* If this refresh has already happened, we add divisor to obtain
* the next refresh after the current one that will satisfy it.
*/
- r = (*msc % (unsigned int)divisor);
- next = (*msc - r + (unsigned int)remainder);
- if (next <= *msc) next += (unsigned int)divisor;
+ r = ((uint64_t)*msc % divisor);
+ next = (*msc - r + remainder);
+ if (next <= *msc)
+ next += divisor;
- } while ( r != (unsigned int)remainder );
+ } while (r != remainder);
}
else {
/* If the \c divisor is zero, just wait until the MSC is greater
* the first time the \c drmWaitVBlank fails. If \c drmWaitVBlank is
* successful, \c vbl_seq will be set the sequence value in the reply.
*
- * \param vbl Pointer to drmVBlank packet desribing how to wait.
+ * \param vbl Pointer to drmVBlank packet describing how to wait.
* \param vbl_seq Location to store the current refresh counter.
* \param fd File descriptor use to call into the DRM.
* \return Zero on success or -1 on failure.
if ( first_time ) {
fprintf(stderr,
"%s: drmWaitVBlank returned %d, IRQs don't seem to be"
- " working correctly.\nTry running with LIBGL_THROTTLE_REFRESH"
- " and LIBL_SYNC_REFRESH unset.\n", __FUNCTION__, ret);
+ " working correctly.\nTry adjusting the vblank_mode"
+ " configuration parameter.\n", __FUNCTION__, ret);
first_time = GL_FALSE;
}
}
+/****************************************************************************/
+/**
+ * Returns the default swap interval of the given drawable.
+ */
+
+static unsigned
+driGetDefaultVBlankInterval( const __DRIdrawable *priv )
+{
+ if ( (priv->vblFlags & (VBLANK_FLAG_THROTTLE | VBLANK_FLAG_SYNC)) != 0 ) {
+ return 1;
+ }
+ else {
+ return 0;
+ }
+}
+
+
/****************************************************************************/
/**
* Sets the default swap interval when the drawable is first bound to a
* direct rendering context.
*/
-void driDrawableInitVBlank( __DRIdrawablePrivate *priv )
+void driDrawableInitVBlank( __DRIdrawable *priv )
{
- if ( priv->swap_interval == (unsigned)-1 ) {
+ if ( priv->swap_interval == (unsigned)-1 &&
+ !( priv->vblFlags & VBLANK_FLAG_NO_IRQ ) ) {
/* Get current vertical blank sequence */
drmVBlank vbl;
do_wait( &vbl, &priv->vblSeq, priv->driScreenPriv->fd );
priv->vblank_base = priv->vblSeq;
- priv->swap_interval =
- (priv->vblFlags & (VBLANK_FLAG_THROTTLE | VBLANK_FLAG_SYNC)) ? 1 : 0;
+ priv->swap_interval = driGetDefaultVBlankInterval( priv );
}
}
*/
unsigned
-driGetVBlankInterval( const __DRIdrawablePrivate *priv, GLuint flags )
+driGetVBlankInterval( const __DRIdrawable *priv )
{
- if ( (flags & VBLANK_FLAG_INTERVAL) != 0 ) {
+ if ( (priv->vblFlags & VBLANK_FLAG_INTERVAL) != 0 ) {
/* this must have been initialized when the drawable was first bound
* to a direct rendering context. */
assert ( priv->swap_interval != (unsigned)-1 );
return priv->swap_interval;
}
- else if ( (flags & (VBLANK_FLAG_THROTTLE | VBLANK_FLAG_SYNC)) != 0 ) {
- return 1;
- }
- else {
- return 0;
- }
+ else
+ return driGetDefaultVBlankInterval( priv );
}
*/
void
-driGetCurrentVBlank( const __DRIdrawablePrivate *priv, GLuint flags,
- GLuint *vbl_seq )
+driGetCurrentVBlank( __DRIdrawable *priv )
{
drmVBlank vbl;
vbl.request.type = DRM_VBLANK_RELATIVE;
- if ( flags & VBLANK_FLAG_SECONDARY ) {
+ if ( priv->vblFlags & VBLANK_FLAG_SECONDARY ) {
vbl.request.type |= DRM_VBLANK_SECONDARY;
}
vbl.request.sequence = 0;
- (void) do_wait( &vbl, vbl_seq, priv->driScreenPriv->fd );
+ (void) do_wait( &vbl, &priv->vblSeq, priv->driScreenPriv->fd );
}
/**
* Waits for the vertical blank for use with glXSwapBuffers.
*
- * \param vbl_seq Vertical blank sequence number (MSC) after the last buffer
- * swap. Updated after this wait.
- * \param flags \c VBLANK_FLAG bits that control how long to wait.
* \param missed_deadline Set to \c GL_TRUE if the MSC after waiting is later
- * than the "target" based on \c flags. The idea is that if
- * \c missed_deadline is set, then the application is not
- * achieving its desired framerate.
+ * than the "target" based on \c priv->vblFlags. The idea is
+ * that if \c missed_deadline is set, then the application is
+ * not achieving its desired framerate.
* \return Zero on success, -1 on error.
*/
int
-driWaitForVBlank( const __DRIdrawablePrivate *priv, GLuint * vbl_seq,
- GLuint flags, GLboolean * missed_deadline )
+driWaitForVBlank( __DRIdrawable *priv, GLboolean * missed_deadline )
{
drmVBlank vbl;
unsigned original_seq;
unsigned diff;
*missed_deadline = GL_FALSE;
- if ( (flags & (VBLANK_FLAG_INTERVAL |
- VBLANK_FLAG_THROTTLE |
- VBLANK_FLAG_SYNC)) == 0 ||
- (flags & VBLANK_FLAG_NO_IRQ) != 0 ) {
+ if ( (priv->vblFlags & (VBLANK_FLAG_INTERVAL |
+ VBLANK_FLAG_THROTTLE |
+ VBLANK_FLAG_SYNC)) == 0 ||
+ (priv->vblFlags & VBLANK_FLAG_NO_IRQ) != 0 ) {
return 0;
}
*
* VBLANK_FLAG_INTERVAL and VBLANK_FLAG_THROTTLE mean to wait for at
* least one vertical blank since the last wait. Since do_wait modifies
- * vbl_seq, we have to save the original value of vbl_seq for the
+ * priv->vblSeq, we have to save the original value of priv->vblSeq for the
* VBLANK_FLAG_INTERVAL / VBLANK_FLAG_THROTTLE calculation later.
*/
- original_seq = *vbl_seq;
- interval = driGetVBlankInterval(priv, flags);
+ original_seq = priv->vblSeq;
+ interval = driGetVBlankInterval(priv);
deadline = original_seq + interval;
vbl.request.type = DRM_VBLANK_RELATIVE;
- if ( flags & VBLANK_FLAG_SECONDARY ) {
+ if ( priv->vblFlags & VBLANK_FLAG_SECONDARY ) {
vbl.request.type |= DRM_VBLANK_SECONDARY;
}
- vbl.request.sequence = ((flags & VBLANK_FLAG_SYNC) != 0) ? 1 : 0;
+ vbl.request.sequence = ((priv->vblFlags & VBLANK_FLAG_SYNC) != 0) ? 1 : 0;
- if ( do_wait( & vbl, vbl_seq, priv->driScreenPriv->fd ) != 0 ) {
+ if ( do_wait( & vbl, &priv->vblSeq, priv->driScreenPriv->fd ) != 0 ) {
return -1;
}
- diff = *vbl_seq - deadline;
+ diff = priv->vblSeq - deadline;
/* No need to wait again if we've already reached the target */
if (diff <= (1 << 23)) {
- *missed_deadline = (flags & VBLANK_FLAG_SYNC) ? (diff > 0) : GL_TRUE;
+ *missed_deadline = (priv->vblFlags & VBLANK_FLAG_SYNC) ? (diff > 0) :
+ GL_TRUE;
return 0;
}
/* Wait until the target vertical blank. */
vbl.request.type = DRM_VBLANK_ABSOLUTE;
- if ( flags & VBLANK_FLAG_SECONDARY ) {
+ if ( priv->vblFlags & VBLANK_FLAG_SECONDARY ) {
vbl.request.type |= DRM_VBLANK_SECONDARY;
}
vbl.request.sequence = deadline;
- if ( do_wait( & vbl, vbl_seq, priv->driScreenPriv->fd ) != 0 ) {
+ if ( do_wait( & vbl, &priv->vblSeq, priv->driScreenPriv->fd ) != 0 ) {
return -1;
}
- diff = *vbl_seq - deadline;
+ diff = priv->vblSeq - deadline;
*missed_deadline = diff > 0 && diff <= (1 << 23);
return 0;
projects / mesa.git / blobdiff