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-rw-r--r--src/3rdparty/angle/src/libANGLE/renderer/IndexRangeCache.h53
1 files changed, 53 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libANGLE/renderer/IndexRangeCache.h b/src/3rdparty/angle/src/libANGLE/renderer/IndexRangeCache.h
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+++ b/src/3rdparty/angle/src/libANGLE/renderer/IndexRangeCache.h
@@ -0,0 +1,53 @@
+//
+// Copyright (c) 2013 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// IndexRangeCache.h: Defines the rx::IndexRangeCache class which stores information about
+// ranges of indices.
+
+#ifndef LIBANGLE_RENDERER_INDEXRANGECACHE_H_
+#define LIBANGLE_RENDERER_INDEXRANGECACHE_H_
+
+#include "common/angleutils.h"
+#include "common/mathutil.h"
+
+#include "angle_gl.h"
+
+#include <map>
+
+namespace rx
+{
+
+class IndexRangeCache
+{
+ public:
+ void addRange(GLenum type, unsigned int offset, GLsizei count, const RangeUI &range);
+ bool findRange(GLenum type, unsigned int offset, GLsizei count, RangeUI *rangeOut) const;
+
+ void invalidateRange(unsigned int offset, unsigned int size);
+ void clear();
+
+ static RangeUI ComputeRange(GLenum type, const GLvoid *indices, GLsizei count);
+
+ private:
+ struct IndexRange
+ {
+ GLenum type;
+ unsigned int offset;
+ GLsizei count;
+
+ IndexRange();
+ IndexRange(GLenum type, intptr_t offset, GLsizei count);
+
+ bool operator<(const IndexRange& rhs) const;
+ };
+
+ typedef std::map<IndexRange, RangeUI> IndexRangeMap;
+ IndexRangeMap mIndexRangeCache;
+};
+
+}
+
+#endif // LIBANGLE_RENDERER_INDEXRANGECACHE_H_