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

Issue 815553003: Move ViewMatrix off of drawstate (Closed) Base URL: https://skia.googlesource.com/skia.git@remove-fragment-stage
Patch Set: more cleaning Created 5 years, 11 months ago
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1 /* 1 /*
2 * Copyright 2012 Google Inc. 2 * Copyright 2012 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 #ifndef GrClipMaskManager_DEFINED 7 #ifndef GrClipMaskManager_DEFINED
8 #define GrClipMaskManager_DEFINED 8 #define GrClipMaskManager_DEFINED
9 9
10 #include "GrClipMaskCache.h" 10 #include "GrClipMaskCache.h"
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106 GrReducedClip::InitialState initialState, 106 GrReducedClip::InitialState initialState,
107 const GrReducedClip::ElementList& elements, 107 const GrReducedClip::ElementList& elements,
108 const SkIRect& clipSpaceIBounds, 108 const SkIRect& clipSpaceIBounds,
109 const SkIPoint& clipSpaceToStencilOffset); 109 const SkIPoint& clipSpaceToStencilOffset);
110 110
111 // Creates an alpha mask of the clip. The mask is a rasterization of element s through the 111 // Creates an alpha mask of the clip. The mask is a rasterization of element s through the
112 // rect specified by clipSpaceIBounds. 112 // rect specified by clipSpaceIBounds.
113 GrTexture* createAlphaClipMask(int32_t elementsGenID, 113 GrTexture* createAlphaClipMask(int32_t elementsGenID,
114 GrReducedClip::InitialState initialState, 114 GrReducedClip::InitialState initialState,
115 const GrReducedClip::ElementList& elements, 115 const GrReducedClip::ElementList& elements,
116 const SkVector& clipToMaskOffset,
116 const SkIRect& clipSpaceIBounds); 117 const SkIRect& clipSpaceIBounds);
117 118
118 // Similar to createAlphaClipMask but it rasterizes in SW and uploads to the result texture. 119 // Similar to createAlphaClipMask but it rasterizes in SW and uploads to the result texture.
119 GrTexture* createSoftwareClipMask(int32_t elementsGenID, 120 GrTexture* createSoftwareClipMask(int32_t elementsGenID,
120 GrReducedClip::InitialState initialState, 121 GrReducedClip::InitialState initialState,
121 const GrReducedClip::ElementList& elements , 122 const GrReducedClip::ElementList& elements ,
123 const SkVector& clipToMaskOffset,
122 const SkIRect& clipSpaceIBounds); 124 const SkIRect& clipSpaceIBounds);
123 125
124 // Returns the cached mask texture if it matches the elementsGenID and the c lipSpaceIBounds. 126 // Returns the cached mask texture if it matches the elementsGenID and the c lipSpaceIBounds.
125 // Returns NULL if not found. 127 // Returns NULL if not found.
126 GrTexture* getCachedMaskTexture(int32_t elementsGenID, const SkIRect& clipSp aceIBounds); 128 GrTexture* getCachedMaskTexture(int32_t elementsGenID, const SkIRect& clipSp aceIBounds);
127 129
128 // Handles allocation (if needed) of a clip alpha-mask texture for both the sw-upload 130 // Handles allocation (if needed) of a clip alpha-mask texture for both the sw-upload
129 // or gpu-rendered cases. 131 // or gpu-rendered cases.
130 GrTexture* allocMaskTexture(int32_t elementsGenID, 132 GrTexture* allocMaskTexture(int32_t elementsGenID,
131 const SkIRect& clipSpaceIBounds, 133 const SkIRect& clipSpaceIBounds,
132 bool willUpload); 134 bool willUpload);
133 135
134 bool useSWOnlyPath(const GrDrawState*, const GrReducedClip::ElementList& ele ments); 136 bool useSWOnlyPath(const GrDrawState*,
137 const SkVector& clipToMaskOffset,
138 const GrReducedClip::ElementList& elements);
135 139
136 // Draws a clip element into the target alpha mask. The caller should have a lready setup the 140 // Draws a clip element into the target alpha mask. The caller should have a lready setup the
137 // desired blend operation. Optionally if the caller already selected a path renderer it can 141 // desired blend operation. Optionally if the caller already selected a path renderer it can
138 // be passed. Otherwise the function will select one if the element is a pat h. 142 // be passed. Otherwise the function will select one if the element is a pat h.
139 bool drawElement(GrDrawState*, 143 bool drawElement(GrDrawState*,
144 const SkMatrix& viewMatrix,
140 GrTexture* target, 145 GrTexture* target,
141 const SkClipStack::Element*, 146 const SkClipStack::Element*,
142 GrPathRenderer* pr = NULL); 147 GrPathRenderer* pr = NULL);
143 148
144 // Determines whether it is possible to draw the element to both the stencil buffer and the 149 // Determines whether it is possible to draw the element to both the stencil buffer and the
145 // alpha mask simultaneously. If so and the element is a path a compatible p ath renderer is 150 // alpha mask simultaneously. If so and the element is a path a compatible p ath renderer is
146 // also returned. 151 // also returned.
147 bool canStencilAndDrawElement(GrDrawState*, 152 bool canStencilAndDrawElement(GrDrawState*,
148 GrTexture* target, 153 GrTexture* target,
149 GrPathRenderer**, 154 GrPathRenderer**,
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186 kAlpha_ClipMaskType, 191 kAlpha_ClipMaskType,
187 } fCurrClipMaskType; 192 } fCurrClipMaskType;
188 193
189 GrClipMaskCache fAACache; // cache for the AA path 194 GrClipMaskCache fAACache; // cache for the AA path
190 GrClipTarget* fClipTarget; 195 GrClipTarget* fClipTarget;
191 StencilClipMode fClipMode; 196 StencilClipMode fClipMode;
192 197
193 typedef SkNoncopyable INHERITED; 198 typedef SkNoncopyable INHERITED;
194 }; 199 };
195 #endif // GrClipMaskManager_DEFINED 200 #endif // GrClipMaskManager_DEFINED
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