1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/angle/src/libGLESv2/renderer/IndexRangeCache.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,58 @@
1.4 +//
1.5 +// Copyright (c) 2013 The ANGLE Project Authors. All rights reserved.
1.6 +// Use of this source code is governed by a BSD-style license that can be
1.7 +// found in the LICENSE file.
1.8 +//
1.9 +
1.10 +// IndexRangeCache.h: Defines the rx::IndexRangeCache class which stores information about
1.11 +// ranges of indices.
1.12 +
1.13 +#ifndef LIBGLESV2_RENDERER_INDEXRANGECACHE_H_
1.14 +#define LIBGLESV2_RENDERER_INDEXRANGECACHE_H_
1.15 +
1.16 +#include "common/angleutils.h"
1.17 +
1.18 +namespace rx
1.19 +{
1.20 +
1.21 +class IndexRangeCache
1.22 +{
1.23 + public:
1.24 + void addRange(GLenum type, intptr_t offset, GLsizei count, unsigned int minIdx, unsigned int maxIdx,
1.25 + unsigned int streamOffset);
1.26 + bool findRange(GLenum type, intptr_t offset, GLsizei count, unsigned int *outMinIndex,
1.27 + unsigned int *outMaxIndex, unsigned int *outStreamOffset) const;
1.28 +
1.29 + void invalidateRange(unsigned int offset, unsigned int size);
1.30 + void clear();
1.31 +
1.32 + private:
1.33 + struct IndexRange
1.34 + {
1.35 + GLenum type;
1.36 + intptr_t offset;
1.37 + GLsizei count;
1.38 +
1.39 + IndexRange();
1.40 + IndexRange(GLenum type, intptr_t offset, GLsizei count);
1.41 +
1.42 + bool operator<(const IndexRange& rhs) const;
1.43 + };
1.44 +
1.45 + struct IndexBounds
1.46 + {
1.47 + unsigned int minIndex;
1.48 + unsigned int maxIndex;
1.49 + unsigned int streamOffset;
1.50 +
1.51 + IndexBounds();
1.52 + IndexBounds(unsigned int minIdx, unsigned int maxIdx, unsigned int offset);
1.53 + };
1.54 +
1.55 + typedef std::map<IndexRange, IndexBounds> IndexRangeMap;
1.56 + IndexRangeMap mIndexRangeCache;
1.57 +};
1.58 +
1.59 +}
1.60 +
1.61 +#endif LIBGLESV2_RENDERER_INDEXRANGECACHE_H
