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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" |
| (...skipping 23 matching lines...) Expand all Loading... |
| 34 * cases scissoring is used to bound the range of the clip mask. | 34 * cases scissoring is used to bound the range of the clip mask. |
| 35 */ | 35 */ |
| 36 class GrClipMaskManager : SkNoncopyable { | 36 class GrClipMaskManager : SkNoncopyable { |
| 37 public: | 37 public: |
| 38 GrClipMaskManager() | 38 GrClipMaskManager() |
| 39 : fCurrClipMaskType(kNone_ClipMaskType) | 39 : fCurrClipMaskType(kNone_ClipMaskType) |
| 40 , fClipTarget(NULL) | 40 , fClipTarget(NULL) |
| 41 , fClipMode(kIgnoreClip_StencilClipMode) { | 41 , fClipMode(kIgnoreClip_StencilClipMode) { |
| 42 } | 42 } |
| 43 | 43 |
| 44 // The state of the scissor is controlled by the clip manager, no one else s
hould set | |
| 45 // Scissor state. This should really be on Gpu itself. We should revist th
is when GPU | |
| 46 // and drawtarget are separate | |
| 47 struct ScissorState { | |
| 48 ScissorState() : fEnabled(false) {} | |
| 49 void set(const SkIRect& rect) { fRect = rect; fEnabled = true; } | |
| 50 bool operator==(const ScissorState& other) const { | |
| 51 return fEnabled == other.fEnabled && | |
| 52 (false == fEnabled || fRect == other.fRect); | |
| 53 } | |
| 54 bool operator!=(const ScissorState& other) const { return !(*this == oth
er); } | |
| 55 bool fEnabled; | |
| 56 SkIRect fRect; | |
| 57 }; | |
| 58 | |
| 59 /** | 44 /** |
| 60 * Creates a clip mask if necessary as a stencil buffer or alpha texture | 45 * Creates a clip mask if necessary as a stencil buffer or alpha texture |
| 61 * and sets the GrGpu's scissor and stencil state. If the return is false | 46 * and sets the GrGpu's scissor and stencil state. If the return is false |
| 62 * then the draw can be skipped. The AutoRestoreEffects is initialized by | 47 * then the draw can be skipped. The AutoRestoreEffects is initialized by |
| 63 * the manager when it must install additional effects to implement the | 48 * the manager when it must install additional effects to implement the |
| 64 * clip. devBounds is optional but can help optimize clipping. | 49 * clip. devBounds is optional but can help optimize clipping. |
| 65 */ | 50 */ |
| 66 bool setupClipping(GrDrawState*, | 51 bool setupClipping(GrDrawState*, |
| 67 GrDrawState::AutoRestoreEffects*, | 52 GrDrawState::AutoRestoreEffects*, |
| 68 GrDrawState::AutoRestoreStencil*, | 53 GrDrawState::AutoRestoreStencil*, |
| 69 ScissorState*, | 54 GrScissorState*, |
| 70 const GrClipData* clipDataIn, | 55 const GrClipData* clipDataIn, |
| 71 const SkRect* devBounds); | 56 const SkRect* devBounds); |
| 72 | 57 |
| 73 /** | 58 /** |
| 74 * Purge resources to free up memory. TODO: This class shouldn't hold any lo
ng lived refs | 59 * Purge resources to free up memory. TODO: This class shouldn't hold any lo
ng lived refs |
| 75 * which will allow ResourceCache2 to automatically purge anything this clas
s has created. | 60 * which will allow ResourceCache2 to automatically purge anything this clas
s has created. |
| 76 */ | 61 */ |
| 77 void purgeResources(); | 62 void purgeResources(); |
| 78 | 63 |
| 79 bool isClipInStencil() const { | 64 bool isClipInStencil() const { |
| (...skipping 122 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 202 kAlpha_ClipMaskType, | 187 kAlpha_ClipMaskType, |
| 203 } fCurrClipMaskType; | 188 } fCurrClipMaskType; |
| 204 | 189 |
| 205 GrClipMaskCache fAACache; // cache for the AA path | 190 GrClipMaskCache fAACache; // cache for the AA path |
| 206 GrClipTarget* fClipTarget; | 191 GrClipTarget* fClipTarget; |
| 207 StencilClipMode fClipMode; | 192 StencilClipMode fClipMode; |
| 208 | 193 |
| 209 typedef SkNoncopyable INHERITED; | 194 typedef SkNoncopyable INHERITED; |
| 210 }; | 195 }; |
| 211 #endif // GrClipMaskManager_DEFINED | 196 #endif // GrClipMaskManager_DEFINED |
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