epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 2 | /* |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 3 | * Copyright 2010 Google Inc. |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
| 9 | |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 10 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 11 | #ifndef SkGpuDevice_DEFINED |
| 12 | #define SkGpuDevice_DEFINED |
| 13 | |
| 14 | #include "SkGr.h" |
reed@google.com | af951c9 | 2011-06-16 19:10:39 +0000 | [diff] [blame] | 15 | #include "SkBitmap.h" |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 16 | #include "SkDevice.h" |
| 17 | #include "SkRegion.h" |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 18 | #include "GrContext.h" |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 19 | |
| 20 | struct SkDrawProcs; |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 21 | struct GrSkDrawProcs; |
| 22 | class GrTextContext; |
| 23 | |
| 24 | /** |
| 25 | * Subclass of SkDevice, which directs all drawing to the GrGpu owned by the |
| 26 | * canvas. |
| 27 | */ |
bsalomon@google.com | 9182610 | 2011-03-21 19:51:57 +0000 | [diff] [blame] | 28 | class SK_API SkGpuDevice : public SkDevice { |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 29 | public: |
bsalomon@google.com | 2e7b43d | 2011-01-18 20:57:22 +0000 | [diff] [blame] | 30 | /** |
reed@google.com | af951c9 | 2011-06-16 19:10:39 +0000 | [diff] [blame] | 31 | * New device that will create an offscreen renderTarget based on the |
| 32 | * config, width, height. |
| 33 | * |
bsalomon@google.com | e97f085 | 2011-06-17 13:10:25 +0000 | [diff] [blame] | 34 | * usage is a special flag that should only be set by SkCanvas |
reed@google.com | af951c9 | 2011-06-16 19:10:39 +0000 | [diff] [blame] | 35 | * internally. |
bsalomon@google.com | 2e7b43d | 2011-01-18 20:57:22 +0000 | [diff] [blame] | 36 | */ |
bsalomon@google.com | e97f085 | 2011-06-17 13:10:25 +0000 | [diff] [blame] | 37 | SkGpuDevice(GrContext*, SkBitmap::Config, |
| 38 | int width, int height, |
| 39 | SkDevice::Usage usage = SkDevice::kGeneral_Usage); |
reed@google.com | af951c9 | 2011-06-16 19:10:39 +0000 | [diff] [blame] | 40 | |
| 41 | /** |
| 42 | * New device that will render to the specified renderTarget. |
| 43 | */ |
| 44 | SkGpuDevice(GrContext*, GrRenderTarget*); |
bsalomon@google.com | 2e7b43d | 2011-01-18 20:57:22 +0000 | [diff] [blame] | 45 | |
| 46 | /** |
bsalomon@google.com | f9046fe | 2011-06-17 15:10:21 +0000 | [diff] [blame] | 47 | * New device that will render to the texture (as a rendertarget). |
| 48 | * The GrTexture's asRenderTarget() must be non-NULL or device will not |
| 49 | * function. |
| 50 | */ |
| 51 | SkGpuDevice(GrContext*, GrTexture*); |
| 52 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 53 | virtual ~SkGpuDevice(); |
reed@google.com | 7b201d2 | 2011-01-11 18:59:23 +0000 | [diff] [blame] | 54 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 55 | GrContext* context() const { return fContext; } |
| 56 | |
| 57 | /** |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 58 | * Override from SkGpuDevice, so we can set our FBO to be the render target |
| 59 | * The canvas parameter must be a SkGpuCanvas |
| 60 | */ |
bsalomon@google.com | d302f14 | 2011-03-03 13:54:13 +0000 | [diff] [blame] | 61 | virtual void gainFocus(SkCanvas*, const SkMatrix&, const SkRegion&, |
| 62 | const SkClipStack& clipStack); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 63 | |
bsalomon@google.com | d9f826c | 2011-07-18 15:25:04 +0000 | [diff] [blame] | 64 | virtual SkGpuRenderTarget* accessRenderTarget() { |
| 65 | return (SkGpuRenderTarget*)fRenderTarget; |
| 66 | } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 67 | |
| 68 | // overrides from SkDevice |
| 69 | |
bsalomon@google.com | 398109c | 2011-04-14 18:40:27 +0000 | [diff] [blame] | 70 | virtual void clear(SkColor color); |
bsalomon@google.com | ace7bd5 | 2011-11-02 19:39:51 +0000 | [diff] [blame^] | 71 | virtual bool readPixels(const SkIRect& srcRect, SkBitmap* bitmap); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 72 | virtual void writePixels(const SkBitmap& bitmap, int x, int y); |
reed@google.com | 7b201d2 | 2011-01-11 18:59:23 +0000 | [diff] [blame] | 73 | |
tomhudson@google.com | 8a0b029 | 2011-09-13 14:41:06 +0000 | [diff] [blame] | 74 | virtual void setMatrixClip(const SkMatrix& matrix, const SkRegion& clip, |
| 75 | const SkClipStack&); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 76 | |
| 77 | virtual void drawPaint(const SkDraw&, const SkPaint& paint); |
| 78 | virtual void drawPoints(const SkDraw&, SkCanvas::PointMode mode, size_t count, |
| 79 | const SkPoint[], const SkPaint& paint); |
| 80 | virtual void drawRect(const SkDraw&, const SkRect& r, |
| 81 | const SkPaint& paint); |
| 82 | virtual void drawPath(const SkDraw&, const SkPath& path, |
| 83 | const SkPaint& paint, const SkMatrix* prePathMatrix, |
| 84 | bool pathIsMutable); |
| 85 | virtual void drawBitmap(const SkDraw&, const SkBitmap& bitmap, |
| 86 | const SkIRect* srcRectOrNull, |
| 87 | const SkMatrix& matrix, const SkPaint& paint); |
| 88 | virtual void drawSprite(const SkDraw&, const SkBitmap& bitmap, |
| 89 | int x, int y, const SkPaint& paint); |
| 90 | virtual void drawText(const SkDraw&, const void* text, size_t len, |
| 91 | SkScalar x, SkScalar y, const SkPaint& paint); |
| 92 | virtual void drawPosText(const SkDraw&, const void* text, size_t len, |
| 93 | const SkScalar pos[], SkScalar constY, |
| 94 | int scalarsPerPos, const SkPaint& paint); |
| 95 | virtual void drawTextOnPath(const SkDraw&, const void* text, size_t len, |
| 96 | const SkPath& path, const SkMatrix* matrix, |
| 97 | const SkPaint& paint); |
| 98 | virtual void drawVertices(const SkDraw&, SkCanvas::VertexMode, int vertexCount, |
| 99 | const SkPoint verts[], const SkPoint texs[], |
| 100 | const SkColor colors[], SkXfermode* xmode, |
| 101 | const uint16_t indices[], int indexCount, |
| 102 | const SkPaint& paint); |
| 103 | virtual void drawDevice(const SkDraw&, SkDevice*, int x, int y, |
| 104 | const SkPaint&); |
reed@google.com | f67e4cf | 2011-03-15 20:56:58 +0000 | [diff] [blame] | 105 | virtual bool filterTextFlags(const SkPaint& paint, TextFlags*); |
reed@google.com | 7b201d2 | 2011-01-11 18:59:23 +0000 | [diff] [blame] | 106 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 107 | virtual void flush() { fContext->flush(false); } |
reed@google.com | 7b201d2 | 2011-01-11 18:59:23 +0000 | [diff] [blame] | 108 | |
| 109 | /** |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 110 | * Make's this device's rendertarget current in the underlying 3D API. |
| 111 | * Also implicitly flushes. |
| 112 | */ |
| 113 | virtual void makeRenderTargetCurrent(); |
| 114 | |
| 115 | protected: |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 116 | typedef GrContext::TextureCacheEntry TexCache; |
bsalomon@google.com | e97f085 | 2011-06-17 13:10:25 +0000 | [diff] [blame] | 117 | enum TexType { |
| 118 | kBitmap_TexType, |
| 119 | kDeviceRenderTarget_TexType, |
| 120 | kSaveLayerDeviceRenderTarget_TexType |
| 121 | }; |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 122 | TexCache lockCachedTexture(const SkBitmap& bitmap, |
| 123 | const GrSamplerState& sampler, |
| 124 | TexType type = kBitmap_TexType); |
| 125 | void unlockCachedTexture(TexCache); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 126 | |
| 127 | class SkAutoCachedTexture { |
| 128 | public: |
| 129 | SkAutoCachedTexture(); |
| 130 | SkAutoCachedTexture(SkGpuDevice* device, |
| 131 | const SkBitmap& bitmap, |
| 132 | const GrSamplerState& sampler, |
| 133 | GrTexture** texture); |
| 134 | ~SkAutoCachedTexture(); |
| 135 | |
| 136 | GrTexture* set(SkGpuDevice*, const SkBitmap&, const GrSamplerState&); |
| 137 | |
| 138 | private: |
| 139 | SkGpuDevice* fDevice; |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 140 | TexCache fTex; |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 141 | }; |
| 142 | friend class SkAutoTexCache; |
| 143 | |
| 144 | private: |
| 145 | GrContext* fContext; |
bsalomon@google.com | 5782d71 | 2011-01-21 21:03:59 +0000 | [diff] [blame] | 146 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 147 | GrSkDrawProcs* fDrawProcs; |
| 148 | |
| 149 | // state for our offscreen render-target |
bsalomon@google.com | 50398bf | 2011-07-26 20:45:30 +0000 | [diff] [blame] | 150 | TexCache fCache; |
| 151 | GrTexture* fTexture; |
| 152 | GrRenderTarget* fRenderTarget; |
| 153 | bool fNeedClear; |
| 154 | bool fNeedPrepareRenderTarget; |
reed@google.com | 7b201d2 | 2011-01-11 18:59:23 +0000 | [diff] [blame] | 155 | |
bsalomon@google.com | f9046fe | 2011-06-17 15:10:21 +0000 | [diff] [blame] | 156 | // called from rt and tex cons |
| 157 | void initFromRenderTarget(GrContext*, GrRenderTarget*); |
| 158 | |
bsalomon@google.com | 5782d71 | 2011-01-21 21:03:59 +0000 | [diff] [blame] | 159 | // doesn't set the texture/sampler/matrix state |
| 160 | // caller needs to null out GrPaint's texture if |
| 161 | // non-textured drawing is desired. |
Scroggo | d757df2 | 2011-05-16 13:11:16 +0000 | [diff] [blame] | 162 | // Set constantColor to true if a constant color |
| 163 | // will be used. This is an optimization, and can |
| 164 | // always be set to false. constantColor should |
| 165 | // never be true if justAlpha is true. |
bsalomon@google.com | 5782d71 | 2011-01-21 21:03:59 +0000 | [diff] [blame] | 166 | bool skPaint2GrPaintNoShader(const SkPaint& skPaint, |
| 167 | bool justAlpha, |
Scroggo | d757df2 | 2011-05-16 13:11:16 +0000 | [diff] [blame] | 168 | GrPaint* grPaint, |
| 169 | bool constantColor); |
bsalomon@google.com | 5782d71 | 2011-01-21 21:03:59 +0000 | [diff] [blame] | 170 | |
| 171 | // uses the SkShader to setup paint, act used to |
| 172 | // hold lock on cached texture and free it when |
| 173 | // destroyed. |
Scroggo | d757df2 | 2011-05-16 13:11:16 +0000 | [diff] [blame] | 174 | // If there is no shader, constantColor will |
| 175 | // be passed to skPaint2GrPaintNoShader. Otherwise |
| 176 | // it is ignored. |
bsalomon@google.com | 5782d71 | 2011-01-21 21:03:59 +0000 | [diff] [blame] | 177 | bool skPaint2GrPaintShader(const SkPaint& skPaint, |
| 178 | SkAutoCachedTexture* act, |
| 179 | const SkMatrix& ctm, |
Scroggo | d757df2 | 2011-05-16 13:11:16 +0000 | [diff] [blame] | 180 | GrPaint* grPaint, |
| 181 | bool constantColor); |
bsalomon@google.com | 5782d71 | 2011-01-21 21:03:59 +0000 | [diff] [blame] | 182 | |
bsalomon@google.com | e97f085 | 2011-06-17 13:10:25 +0000 | [diff] [blame] | 183 | // override from SkDevice |
| 184 | virtual SkDevice* onCreateCompatibleDevice(SkBitmap::Config config, |
| 185 | int width, int height, |
| 186 | bool isOpaque, |
| 187 | Usage usage); |
| 188 | |
bsalomon@google.com | 5782d71 | 2011-01-21 21:03:59 +0000 | [diff] [blame] | 189 | SkDrawProcs* initDrawForText(GrTextContext*); |
bsalomon@google.com | c6cf723 | 2011-02-17 16:43:10 +0000 | [diff] [blame] | 190 | bool bindDeviceAsTexture(GrPaint* paint); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 191 | |
| 192 | void prepareRenderTarget(const SkDraw&); |
| 193 | void internalDrawBitmap(const SkDraw&, const SkBitmap&, |
bsalomon@google.com | 5782d71 | 2011-01-21 21:03:59 +0000 | [diff] [blame] | 194 | const SkIRect&, const SkMatrix&, GrPaint* grPaint); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 195 | |
| 196 | typedef SkDevice INHERITED; |
| 197 | }; |
| 198 | |
| 199 | #endif |
| 200 | |