From: Rob Clark <robcl...@freedesktop.org>
Required to implement EGL_ANDROID_native_fence_sync.
Signed-off-by: Rob Clark <robcl...@freedesktop.org>
---
include/GL/internal/dri_interface.h | 44 ++++++++++++++++++++++++++++++++++++-
1 file changed, 43 insertions(+), 1 deletion(-)
diff --git a/include/GL/internal/dri_interface.h
b/include/GL/internal/dri_interface.h
index 1c73cce..99c83ec 100644
--- a/include/GL/internal/dri_interface.h
+++ b/include/GL/internal/dri_interface.h
@@ -340,12 +340,19 @@ struct __DRI2throttleExtensionRec {
*/
#define __DRI2_FENCE "DRI2_Fence"
-#define __DRI2_FENCE_VERSION 1
+#define __DRI2_FENCE_VERSION 2
#define __DRI2_FENCE_TIMEOUT_INFINITE 0xffffffffffffffffllu
#define __DRI2_FENCE_FLAG_FLUSH_COMMANDS (1 << 0)
+/**
+ * \name Capabilities that might be returned by
__DRI2fenceExtensionRec::get_capabilities
+ */
+/*@{*/
+#define __DRI_FENCE_CAP_NATIVE_FD 1
+/*@}*/
+
struct __DRI2fenceExtensionRec {
__DRIextension base;
@@ -390,6 +397,41 @@ struct __DRI2fenceExtensionRec {
* sense with this function (right now there are none)
*/
void (*server_wait_sync)(__DRIcontext *ctx, void *fence, unsigned flags);
+
+ /**
+ * Query for general capabilities of the driver that concern fences.
+ * Returns a bitmask of __DRI_FENCE_CAP_x
+ *
+ * \since 2
+ */
+ unsigned (*get_capabilities)(__DRIscreen *screen);
+
+ /**
+ * Create an fd (file descriptor) associated fence. If the fence fd
+ * is -1, this behaves similarly to create_fence() except that when
+ * rendering is flushed the driver creates a fence fd. Otherwise,
+ * the driver wraps an existing fence fd.
+ *
+ * This is used to implement the EGL_ANDROID_native_fence_sync extension.
+ *
+ * \since 2
+ *
+ * \param ctx the context associated with the fence
+ * \param fd the fence fd or -1
+ */
+ void *(*create_fence_fd)(__DRIcontext *ctx, int fd);
+
+ /**
+ * For fences created with create_fence_fd(), after rendering is flushed,
+ * this retrieves the native fence fd. Caller takes ownership of the
+ * fd and will close() it when it is no longer needed.
+ *
+ * \since 2
+ *
+ * \param screen the screen associated with the fence
+ * \param fence the fence
+ */
+ int (*get_fence_fd)(__DRIscreen *screen, void *fence);
};
--
2.9.0.rc2
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