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-rw-r--r--include/GL/internal/dri_interface.h25
-rw-r--r--src/mesa/drivers/dri/common/dri_util.c14
-rw-r--r--src/mesa/drivers/dri/common/dri_util.h9
3 files changed, 46 insertions, 2 deletions
diff --git a/include/GL/internal/dri_interface.h b/include/GL/internal/dri_interface.h
index 98402eae05..b47947380c 100644
--- a/include/GL/internal/dri_interface.h
+++ b/include/GL/internal/dri_interface.h
@@ -1107,6 +1107,16 @@ struct __DRIdri2LoaderExtensionRec {
#define __DRI_CTX_PRIORITY_HIGH 2
/**
+ * \name Context release behaviors.
+ */
+/*@{*/
+#define __DRI_CTX_ATTRIB_RELEASE_BEHAVIOR 5
+
+#define __DRI_CTX_RELEASE_BEHAVIOR_NONE 0
+#define __DRI_CTX_RELEASE_BEHAVIOR_FLUSH 1
+/*@}*/
+
+/**
* \name Reasons that __DRIdri2Extension::createContextAttribs might fail
*/
/*@{*/
@@ -1715,6 +1725,21 @@ typedef struct __DRInoErrorExtensionRec {
__DRIextension base;
} __DRInoErrorExtension;
+/*
+ * Flush control driver extension.
+ *
+ * Existence of this extension means the driver can accept the
+ * \c __DRI_CTX_ATTRIB_RELEASE_BEHAVIOR attribute in
+ * \c __DRIdri2ExtensionRec::createContextAttribs.
+ */
+#define __DRI2_FLUSH_CONTROL "DRI_FlushControl"
+#define __DRI2_FLUSH_CONTROL_VERSION 1
+
+typedef struct __DRI2flushControlExtensionRec __DRI2flushControlExtension;
+struct __DRI2flushControlExtensionRec {
+ __DRIextension base;
+};
+
/**
* DRI config options extension.
*
diff --git a/src/mesa/drivers/dri/common/dri_util.c b/src/mesa/drivers/dri/common/dri_util.c
index dc5260ca5b..d504751c39 100644
--- a/src/mesa/drivers/dri/common/dri_util.c
+++ b/src/mesa/drivers/dri/common/dri_util.c
@@ -361,6 +361,16 @@ driCreateContextAttribs(__DRIscreen *screen, int api,
ctx_config.attribute_mask |= __DRIVER_CONTEXT_ATTRIB_PRIORITY;
ctx_config.priority = attribs[i * 2 + 1];
break;
+ case __DRI_CTX_ATTRIB_RELEASE_BEHAVIOR:
+ if (attribs[i * 2 + 1] != __DRI_CTX_RELEASE_BEHAVIOR_FLUSH) {
+ ctx_config.attribute_mask |=
+ __DRIVER_CONTEXT_ATTRIB_RELEASE_BEHAVIOR;
+ ctx_config.release_behavior = attribs[i * 2 + 1];
+ } else {
+ ctx_config.attribute_mask &=
+ ~__DRIVER_CONTEXT_ATTRIB_RELEASE_BEHAVIOR;
+ }
+ break;
default:
/* We can't create a context that satisfies the requirements of an
* attribute that we don't understand. Return failure.
@@ -833,6 +843,10 @@ const __DRI2configQueryExtension dri2ConfigQueryExtension = {
.configQueryf = dri2ConfigQueryf,
};
+const __DRI2flushControlExtension dri2FlushControlExtension = {
+ .base = { __DRI2_FLUSH_CONTROL, 1 }
+};
+
void
dri2InvalidateDrawable(__DRIdrawable *drawable)
{
diff --git a/src/mesa/drivers/dri/common/dri_util.h b/src/mesa/drivers/dri/common/dri_util.h
index 3d9ec9d072..1881e3d0a7 100644
--- a/src/mesa/drivers/dri/common/dri_util.h
+++ b/src/mesa/drivers/dri/common/dri_util.h
@@ -67,6 +67,7 @@ extern const __DRIswrastExtension driSWRastExtension;
extern const __DRIdri2Extension driDRI2Extension;
extern const __DRI2configQueryExtension dri2ConfigQueryExtension;
extern const __DRIcopySubBufferExtension driCopySubBufferExtension;
+extern const __DRI2flushControlExtension dri2FlushControlExtension;
/**
* Description of the attributes used to create a config.
@@ -93,10 +94,14 @@ struct __DriverContextConfig {
/* Only valid if __DRIVER_CONTEXT_PRIORITY is set */
unsigned priority;
+
+ /* Only valid if __DRIVER_CONTEXT_ATTRIB_RELEASE_BEHAVIOR is set */
+ int release_behavior;
};
-#define __DRIVER_CONTEXT_ATTRIB_RESET_STRATEGY (1 << 0)
-#define __DRIVER_CONTEXT_ATTRIB_PRIORITY (1 << 1)
+#define __DRIVER_CONTEXT_ATTRIB_RESET_STRATEGY (1 << 0)
+#define __DRIVER_CONTEXT_ATTRIB_PRIORITY (1 << 1)
+#define __DRIVER_CONTEXT_ATTRIB_RELEASE_BEHAVIOR (1 << 2)
/**
* Driver callback functions.