1 files changed, 138 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_debug_flush.h b/src/gallium/auxiliary/util/u_debug_flush.h
new file mode 100644
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+++ b/src/gallium/auxiliary/util/u_debug_flush.h
@@ -0,0 +1,138 @@
+/**************************************************************************
+ *
+ * Copyright 2012 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/**
+ * @file
+ * u_debug_flush.h - Header for debugging flush- and map- related issues.
+ * - Flush while synchronously mapped.
+ * - Command stream reference while synchronously mapped.
+ * - Synchronous map while referenced on command stream.
+ * - Recursive maps.
+ * - Unmap while not mapped.
+ *
+ * @author Thomas Hellstrom <[email protected]>
+ */
+#ifdef DEBUG
+
+#ifndef U_DEBUG_FLUSH_H_
+#define U_DEBUG_FLUSH_H_
+
+struct debug_flush_buf;
+struct debug_flush_ctx;
+
+/**
+ * Create a buffer (AKA allocation) representation.
+ *
+ * @param support_unsync Whether unsynchronous maps are truly supported.
+ * @param bt_depth Depth of backtrace to be captured for this buffer
+ * representation.
+ */
+struct debug_flush_buf *
+debug_flush_buf_create(boolean supports_unsync, unsigned bt_depth);
+
+/**
+ * Reference a buffer representation.
+ *
+ * @param dst Pointer copy destination
+ * @param src Pointer copy source (may be NULL).
+ *
+ * Replace a pointer to a buffer representation with proper refcounting.
+ */
+void
+debug_flush_buf_reference(struct debug_flush_buf **dst,
+                          struct debug_flush_buf *src);
+
+/**
+ * Create a context representation.
+ *
+ * @param catch_map_of_referenced Whether to catch synchronous maps of buffers
+ * already present on the command stream.
+ * @param bt_depth Depth of backtrace to be captured for this context
+ * representation.
+ */
+struct debug_flush_ctx *
+debug_flush_ctx_create(boolean catch_map_of_referenced, unsigned bt_depth);
+
+/**
+ * Destroy a context representation.
+ *
+ * @param fctx The context representation to destroy.
+ */
+void
+debug_flush_ctx_destroy(struct debug_flush_ctx *fctx);
+
+/**
+ * Map annotation
+ *
+ * @param fbuf The buffer representation to map.
+ * @param flags Pipebuffer flags for the map.
+ *
+ * Used to annotate a map of the buffer described by the buffer representation.
+ */
+void debug_flush_map(struct debug_flush_buf *fbuf, unsigned flags);
+
+/**
+ * Unmap annotation
+ *
+ * @param fbuf The buffer representation to map.
+ *
+ * Used to annotate an unmap of the buffer described by the
+ * buffer representation.
+ */
+void debug_flush_unmap(struct debug_flush_buf *fbuf);
+
+/**
+ * Might flush annotation
+ *
+ * @param fctx The context representation that might be flushed.
+ *
+ * Used to annotate a conditional (possible) flush of the given context.
+ */
+void debug_flush_might_flush(struct debug_flush_ctx *fctx);
+
+/**
+ * Flush annotation
+ *
+ * @param fctx The context representation that is flushed.
+ *
+ * Used to annotate a real flush of the given context.
+ */
+void debug_flush_flush(struct debug_flush_ctx *fctx);
+
+
+/**
+ * Flush annotation
+ *
+ * @param fctx The context representation that is flushed.
+ *
+ * Used to annotate a real flush of the given context.
+ */
+void debug_flush_cb_reference(struct debug_flush_ctx *fctx,
+                              struct debug_flush_buf *fbuf);
+
+#endif
+#endif