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Side by Side Diff: src/gpu/GrYUVProvider.h

Issue 1716523002: Update Skia's YUV API (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 4 years, 10 months ago
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1 /* 1 /*
2 * Copyright 2015 Google Inc. 2 * Copyright 2015 Google Inc.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license that can be 4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file. 5 * found in the LICENSE file.
6 */ 6 */
7 7
8 #ifndef GrYUVProvider_DEFINED 8 #ifndef GrYUVProvider_DEFINED
9 #define GrYUVProvider_DEFINED 9 #define GrYUVProvider_DEFINED
10 10
11 #include "GrTypes.h" 11 #include "GrTypes.h"
12 #include "SkImageInfo.h" 12 #include "SkImageInfo.h"
13 #include "SkYUVSizeInfo.h"
13 14
14 class GrContext; 15 class GrContext;
15 class GrTexture; 16 class GrTexture;
16 17
17 /** 18 /**
18 * There are at least 2 different ways to extract/retrieve YUV planar data... 19 * There are at least 2 different ways to extract/retrieve YUV planar data...
19 * - SkPixelRef 20 * - SkPixelRef
20 * - SkImageGeneartor 21 * - SkImageGeneartor
21 * 22 *
22 * To share common functionality around using the planar data, we use this abst ract base-class 23 * To share common functionality around using the planar data, we use this abst ract base-class
(...skipping 19 matching lines...) Expand all
42 kY_Index = 0, 43 kY_Index = 0,
43 kU_Index = 1, 44 kU_Index = 1,
44 kV_Index = 2, 45 kV_Index = 2,
45 46
46 kPlaneCount = 3 47 kPlaneCount = 3
47 }; 48 };
48 49
49 // These are not meant to be called by a client, only by the implementation 50 // These are not meant to be called by a client, only by the implementation
50 51
51 /** 52 /**
52 * Return the 3 dimensions for each plane and return true. On failure, retu rn false and 53 * If decoding to YUV is supported, this returns true. Otherwise, this
53 * ignore the sizes parameter. Typical failure is that the provider does no t contain YUV 54 * returns false and does not modify any of the parameters.
54 * data, and may just be an RGB src. 55 *
56 * @param sizeInfo Output parameter indicating the sizes and required
57 * allocation widths of the Y, U, and V planes.
58 * @param colorSpace Output parameter.
55 */ 59 */
56 virtual bool onGetYUVSizes(SkISize sizes[kPlaneCount]) = 0; 60 virtual bool onQueryYUV8(YUVSizeInfo* sizeInfo, SkYUVColorSpace* colorSpace) const = 0;
57 61
58 /** 62 /**
59 * On success, return true, and set sizes, rowbytes and colorspace to the a ppropriate values. 63 * Returns true on success and false on failure.
60 * planes[] will have already been allocated by the client (based on the wo rst-case sizes 64 * This always attempts to perform a full decode. If the client only
61 * returned by onGetYUVSizes(). This method copies its planar data into tho se buffers. 65 * wants size, it should call onQueryYUV8().
62 * 66 *
63 * On failure, return false and ignore other parameters. 67 * @param sizeInfo Needs to exactly match the values returned by the
68 * query, except the WidthBytes may be larger than the
69 * recommendation (but not smaller).
70 * @param planes Memory for each of the Y, U, and V planes.
64 */ 71 */
65 virtual bool onGetYUVPlanes(SkISize sizes[kPlaneCount], void* planes[kPlaneC ount], 72 virtual bool onGetYUV8Planes(const YUVSizeInfo& sizeInfo, void* planes[kPlan eCount]) = 0;
66 size_t rowBytes[kPlaneCount], SkYUVColorSpace*) = 0;
67 }; 73 };
68 74
69 #endif 75 #endif
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