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authormarha <marha@users.sourceforge.net>2015-04-30 23:26:47 +0200
committermarha <marha@users.sourceforge.net>2015-04-30 23:29:47 +0200
commit055e5645a789d2822d3c4e5a3bc81ff6a969ff31 (patch)
tree8a923f19c3586f9341114be6c81784ab9018aef8 /gl/internal
parent0f7871ff824bcf064db3ab6bdfe26645ba6c8087 (diff)
parenta71d524ecad48837e0124a03124bc05f59a48be7 (diff)
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Merge remote-tracking branch 'origin/released'
Diffstat (limited to 'gl/internal')
-rw-r--r--gl/internal/dri_interface.h60
1 files changed, 60 insertions, 0 deletions
diff --git a/gl/internal/dri_interface.h b/gl/internal/dri_interface.h
index cd4c7d1c7..e139f01a0 100644
--- a/gl/internal/dri_interface.h
+++ b/gl/internal/dri_interface.h
@@ -87,6 +87,7 @@ typedef struct __DRIdri2ExtensionRec __DRIdri2Extension;
typedef struct __DRIdri2LoaderExtensionRec __DRIdri2LoaderExtension;
typedef struct __DRI2flushExtensionRec __DRI2flushExtension;
typedef struct __DRI2throttleExtensionRec __DRI2throttleExtension;
+typedef struct __DRI2fenceExtensionRec __DRI2fenceExtension;
typedef struct __DRIimageLoaderExtensionRec __DRIimageLoaderExtension;
@@ -341,6 +342,65 @@ struct __DRI2throttleExtensionRec {
enum __DRI2throttleReason reason);
};
+
+/**
+ * Extension for fences / synchronization objects.
+ */
+
+#define __DRI2_FENCE "DRI2_Fence"
+#define __DRI2_FENCE_VERSION 1
+
+#define __DRI2_FENCE_TIMEOUT_INFINITE 0xffffffffffffffffllu
+
+#define __DRI2_FENCE_FLAG_FLUSH_COMMANDS (1 << 0)
+
+struct __DRI2fenceExtensionRec {
+ __DRIextension base;
+
+ /**
+ * Create and insert a fence into the command stream of the context.
+ */
+ void *(*create_fence)(__DRIcontext *ctx);
+
+ /**
+ * Get a fence associated with the OpenCL event object.
+ * This can be NULL, meaning that OpenCL interoperability is not supported.
+ */
+ void *(*get_fence_from_cl_event)(__DRIscreen *screen, intptr_t cl_event);
+
+ /**
+ * Destroy a fence.
+ */
+ void (*destroy_fence)(__DRIscreen *screen, void *fence);
+
+ /**
+ * This function waits and doesn't return until the fence is signalled
+ * or the timeout expires. It returns true if the fence has been signaled.
+ *
+ * \param ctx the context where commands are flushed
+ * \param fence the fence
+ * \param flags a combination of __DRI2_FENCE_FLAG_xxx flags
+ * \param timeout the timeout in ns or __DRI2_FENCE_TIMEOUT_INFINITE
+ */
+ GLboolean (*client_wait_sync)(__DRIcontext *ctx, void *fence,
+ unsigned flags, uint64_t timeout);
+
+ /**
+ * This function enqueues a wait command into the command stream of
+ * the context and then returns. When the execution reaches the wait
+ * command, no further execution will be done in the context until
+ * the fence is signaled. This is a no-op if the device doesn't support
+ * parallel execution of contexts.
+ *
+ * \param ctx the context where the waiting is done
+ * \param fence the fence
+ * \param flags a combination of __DRI2_FENCE_FLAG_xxx flags that make
+ * sense with this function (right now there are none)
+ */
+ void (*server_wait_sync)(__DRIcontext *ctx, void *fence, unsigned flags);
+};
+
+
/*@}*/
/**