reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 1 | /* |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 2 | * Copyright 2011 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 6 | */ |
| 7 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 8 | #ifndef GrGpu_DEFINED |
| 9 | #define GrGpu_DEFINED |
| 10 | |
kkinnunen | cabe20c | 2015-06-01 01:37:26 -0700 | [diff] [blame] | 11 | #include "GrPipelineBuilder.h" |
joshualitt | 79f8fae | 2014-10-28 17:59:26 -0700 | [diff] [blame] | 12 | #include "GrProgramDesc.h" |
kkinnunen | cabe20c | 2015-06-01 01:37:26 -0700 | [diff] [blame] | 13 | #include "GrStencil.h" |
bsalomon | 6c9cd55 | 2016-01-22 07:17:34 -0800 | [diff] [blame] | 14 | #include "GrSwizzle.h" |
cdalton | 28f45b9 | 2016-03-07 13:58:26 -0800 | [diff] [blame] | 15 | #include "GrAllocator.h" |
bsalomon | 045802d | 2015-10-20 07:58:01 -0700 | [diff] [blame] | 16 | #include "GrTextureParamsAdjuster.h" |
cblume | 55f2d2d | 2016-02-26 13:20:48 -0800 | [diff] [blame] | 17 | #include "GrTypes.h" |
kkinnunen | cabe20c | 2015-06-01 01:37:26 -0700 | [diff] [blame] | 18 | #include "GrXferProcessor.h" |
sugoi@google.com | 12b4e27 | 2012-12-06 20:13:11 +0000 | [diff] [blame] | 19 | #include "SkPath.h" |
cblume | 55f2d2d | 2016-02-26 13:20:48 -0800 | [diff] [blame] | 20 | #include "SkTArray.h" |
sugoi@google.com | 12b4e27 | 2012-12-06 20:13:11 +0000 | [diff] [blame] | 21 | |
kkinnunen | cabe20c | 2015-06-01 01:37:26 -0700 | [diff] [blame] | 22 | class GrBatchTracker; |
cdalton | 397536c | 2016-03-25 12:15:03 -0700 | [diff] [blame] | 23 | class GrBuffer; |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 24 | class GrContext; |
reed | f9ad558 | 2015-06-25 21:29:25 -0700 | [diff] [blame] | 25 | class GrGLContext; |
egdaniel | 0e1853c | 2016-03-17 11:35:45 -0700 | [diff] [blame] | 26 | class GrMesh; |
bsalomon | e64eb57 | 2015-05-07 11:35:55 -0700 | [diff] [blame] | 27 | class GrNonInstancedVertices; |
bsalomon@google.com | 64aef2b | 2012-06-11 15:36:13 +0000 | [diff] [blame] | 28 | class GrPath; |
cdalton | b85a0aa | 2014-07-21 15:32:44 -0700 | [diff] [blame] | 29 | class GrPathRange; |
bsalomon@google.com | 3008519 | 2011-08-19 15:42:31 +0000 | [diff] [blame] | 30 | class GrPathRenderer; |
| 31 | class GrPathRendererChain; |
kkinnunen | cabe20c | 2015-06-01 01:37:26 -0700 | [diff] [blame] | 32 | class GrPathRendering; |
egdaniel | 8dd688b | 2015-01-22 10:16:09 -0800 | [diff] [blame] | 33 | class GrPipeline; |
joshualitt | 873ad0e | 2015-01-20 09:08:51 -0800 | [diff] [blame] | 34 | class GrPrimitiveProcessor; |
kkinnunen | cabe20c | 2015-06-01 01:37:26 -0700 | [diff] [blame] | 35 | class GrRenderTarget; |
egdaniel | 8dc7c3a | 2015-04-16 11:22:42 -0700 | [diff] [blame] | 36 | class GrStencilAttachment; |
kkinnunen | cabe20c | 2015-06-01 01:37:26 -0700 | [diff] [blame] | 37 | class GrSurface; |
| 38 | class GrTexture; |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 39 | |
joshualitt | 3322fa4 | 2014-11-07 08:48:51 -0800 | [diff] [blame] | 40 | class GrGpu : public SkRefCnt { |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 41 | public: |
| 42 | /** |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 43 | * Create an instance of GrGpu that matches the specified backend. If the requested backend is |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 44 | * not supported (at compile-time or run-time) this returns nullptr. The context will not be |
bsalomon@google.com | 6e4e650 | 2013-02-25 20:12:45 +0000 | [diff] [blame] | 45 | * fully constructed and should not be used by GrGpu until after this function returns. |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 46 | */ |
bsalomon | 682c269 | 2015-05-22 14:01:46 -0700 | [diff] [blame] | 47 | static GrGpu* Create(GrBackend, GrBackendContext, const GrContextOptions&, GrContext* context); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 48 | |
| 49 | //////////////////////////////////////////////////////////////////////////// |
| 50 | |
bsalomon@google.com | 6e4e650 | 2013-02-25 20:12:45 +0000 | [diff] [blame] | 51 | GrGpu(GrContext* context); |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 52 | ~GrGpu() override; |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 53 | |
joshualitt | 3322fa4 | 2014-11-07 08:48:51 -0800 | [diff] [blame] | 54 | GrContext* getContext() { return fContext; } |
| 55 | const GrContext* getContext() const { return fContext; } |
| 56 | |
| 57 | /** |
| 58 | * Gets the capabilities of the draw target. |
| 59 | */ |
bsalomon | 4b91f76 | 2015-05-19 09:29:46 -0700 | [diff] [blame] | 60 | const GrCaps* caps() const { return fCaps.get(); } |
joshualitt | 3322fa4 | 2014-11-07 08:48:51 -0800 | [diff] [blame] | 61 | |
kkinnunen | cabe20c | 2015-06-01 01:37:26 -0700 | [diff] [blame] | 62 | GrPathRendering* pathRendering() { return fPathRendering.get(); } |
kkinnunen | ccdaa04 | 2014-08-20 01:36:23 -0700 | [diff] [blame] | 63 | |
bsalomon | 6e2aad4 | 2016-04-01 11:54:31 -0700 | [diff] [blame] | 64 | enum class DisconnectType { |
| 65 | // No cleanup should be attempted, immediately cease making backend API calls |
| 66 | kAbandon, |
| 67 | // Free allocated resources (not known by GrResourceCache) before returning and |
| 68 | // ensure no backend backend 3D API calls will be made after disconnect() returns. |
| 69 | kCleanup, |
| 70 | }; |
| 71 | |
| 72 | // Called by GrContext when the underlying backend context is already or will be destroyed |
| 73 | // before GrContext. |
| 74 | virtual void disconnect(DisconnectType); |
bsalomon | c8dc1f7 | 2014-08-21 13:02:13 -0700 | [diff] [blame] | 75 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 76 | /** |
| 77 | * The GrGpu object normally assumes that no outsider is setting state |
| 78 | * within the underlying 3D API's context/device/whatever. This call informs |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame] | 79 | * the GrGpu that the state was modified and it shouldn't make assumptions |
| 80 | * about the state. |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 81 | */ |
mtklein | b9eb4ac | 2015-02-02 18:26:03 -0800 | [diff] [blame] | 82 | void markContextDirty(uint32_t state = kAll_GrBackendState) { fResetBits |= state; } |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 83 | |
| 84 | /** |
bsalomon | 6d467ec | 2014-11-18 07:36:19 -0800 | [diff] [blame] | 85 | * Creates a texture object. If kRenderTarget_GrSurfaceFlag the texture can |
| 86 | * be used as a render target by calling GrTexture::asRenderTarget(). Not all |
| 87 | * pixel configs can be used as render targets. Support for configs as textures |
bsalomon | 4b91f76 | 2015-05-19 09:29:46 -0700 | [diff] [blame] | 88 | * or render targets can be checked using GrCaps. |
bsalomon@google.com | 1da0746 | 2011-03-10 14:51:57 +0000 | [diff] [blame] | 89 | * |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 90 | * @param desc describes the texture to be created. |
bsalomon | 5236cf4 | 2015-01-14 10:42:08 -0800 | [diff] [blame] | 91 | * @param budgeted does this texture count against the resource cache budget? |
cblume | 55f2d2d | 2016-02-26 13:20:48 -0800 | [diff] [blame] | 92 | * @param texels array of mipmap levels containing texel data to load. |
| 93 | * Each level begins with full-size palette data for paletted textures. |
| 94 | * For compressed formats the level contains the compressed pixel data. |
| 95 | * Otherwise, it contains width*height texels. If there is only one |
| 96 | * element and it contains nullptr fPixels, texture data is |
| 97 | * uninitialized. |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 98 | * @return The texture object if successful, otherwise nullptr. |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 99 | */ |
bsalomon | 5ec26ae | 2016-02-25 08:33:02 -0800 | [diff] [blame] | 100 | GrTexture* createTexture(const GrSurfaceDesc& desc, SkBudgeted budgeted, |
cblume | 55f2d2d | 2016-02-26 13:20:48 -0800 | [diff] [blame] | 101 | const SkTArray<GrMipLevel>& texels); |
| 102 | |
| 103 | /** |
bsalomon | e699d0c | 2016-03-09 06:25:15 -0800 | [diff] [blame] | 104 | * Simplified createTexture() interface for when there is no initial texel data to upload. |
cblume | 55f2d2d | 2016-02-26 13:20:48 -0800 | [diff] [blame] | 105 | */ |
bsalomon | e699d0c | 2016-03-09 06:25:15 -0800 | [diff] [blame] | 106 | GrTexture* createTexture(const GrSurfaceDesc& desc, SkBudgeted budgeted) { |
| 107 | return this->createTexture(desc, budgeted, SkTArray<GrMipLevel>()); |
| 108 | } |
| 109 | |
| 110 | /** Simplified createTexture() interface for when there is only a base level */ |
| 111 | GrTexture* createTexture(const GrSurfaceDesc& desc, SkBudgeted budgeted, const void* level0Data, |
| 112 | size_t rowBytes) { |
| 113 | SkASSERT(level0Data); |
| 114 | GrMipLevel level = { level0Data, rowBytes }; |
| 115 | SkSTArray<1, GrMipLevel> array; |
| 116 | array.push_back() = level; |
| 117 | return this->createTexture(desc, budgeted, array); |
| 118 | } |
bsalomon | d331259 | 2016-03-04 07:06:43 -0800 | [diff] [blame] | 119 | |
bsalomon@google.com | e269f21 | 2011-11-07 13:29:52 +0000 | [diff] [blame] | 120 | /** |
ericrk | f7b8b8a | 2016-02-24 14:49:51 -0800 | [diff] [blame] | 121 | * Implements GrTextureProvider::wrapBackendTexture |
bsalomon@google.com | e269f21 | 2011-11-07 13:29:52 +0000 | [diff] [blame] | 122 | */ |
bsalomon | 6dc6f5f | 2015-06-18 09:12:16 -0700 | [diff] [blame] | 123 | GrTexture* wrapBackendTexture(const GrBackendTextureDesc&, GrWrapOwnership); |
bsalomon@google.com | e269f21 | 2011-11-07 13:29:52 +0000 | [diff] [blame] | 124 | |
| 125 | /** |
brianosman | 436d985 | 2016-02-25 13:40:42 -0800 | [diff] [blame] | 126 | * Implements GrTextureProvider::wrapBackendRenderTarget |
bsalomon@google.com | e269f21 | 2011-11-07 13:29:52 +0000 | [diff] [blame] | 127 | */ |
bsalomon | 6dc6f5f | 2015-06-18 09:12:16 -0700 | [diff] [blame] | 128 | GrRenderTarget* wrapBackendRenderTarget(const GrBackendRenderTargetDesc&, GrWrapOwnership); |
bsalomon@google.com | e269f21 | 2011-11-07 13:29:52 +0000 | [diff] [blame] | 129 | |
| 130 | /** |
ericrk | f7b8b8a | 2016-02-24 14:49:51 -0800 | [diff] [blame] | 131 | * Implements GrTextureProvider::wrapBackendTextureAsRenderTarget |
| 132 | */ |
kkinnunen | 49c4c22 | 2016-04-01 04:50:37 -0700 | [diff] [blame] | 133 | GrRenderTarget* wrapBackendTextureAsRenderTarget(const GrBackendTextureDesc&); |
ericrk | f7b8b8a | 2016-02-24 14:49:51 -0800 | [diff] [blame] | 134 | |
| 135 | /** |
cdalton | 397536c | 2016-03-25 12:15:03 -0700 | [diff] [blame] | 136 | * Creates a buffer. |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 137 | * |
cdalton | 397536c | 2016-03-25 12:15:03 -0700 | [diff] [blame] | 138 | * @return the buffer if successful, otherwise nullptr. |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 139 | */ |
mtklein | 044d3c1 | 2016-04-06 18:24:34 -0700 | [diff] [blame] | 140 | GrBuffer* createBuffer(GrBufferType, size_t size, GrAccessPattern); |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 141 | |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 142 | /** |
bsalomon@google.com | 75f9f25 | 2012-01-31 13:35:56 +0000 | [diff] [blame] | 143 | * Resolves MSAA. |
| 144 | */ |
| 145 | void resolveRenderTarget(GrRenderTarget* target); |
| 146 | |
bsalomon | f067451 | 2015-07-28 13:26:15 -0700 | [diff] [blame] | 147 | /** Info struct returned by getReadPixelsInfo about performing intermediate draws before |
bsalomon | 3982602 | 2015-07-23 08:07:21 -0700 | [diff] [blame] | 148 | reading pixels for performance or correctness. */ |
| 149 | struct ReadPixelTempDrawInfo { |
| 150 | /** If the GrGpu is requesting that the caller do a draw to an intermediate surface then |
| 151 | this is descriptor for the temp surface. The draw should always be a rect with |
| 152 | dst 0,0,w,h. */ |
| 153 | GrSurfaceDesc fTempSurfaceDesc; |
| 154 | /** Indicates whether there is a performance advantage to using an exact match texture |
| 155 | (in terms of width and height) for the intermediate texture instead of approximate. */ |
| 156 | bool fUseExactScratch; |
bsalomon | 6c9cd55 | 2016-01-22 07:17:34 -0800 | [diff] [blame] | 157 | /** Swizzle to apply during the draw. This is used to compensate for either feature or |
| 158 | performance limitations in the underlying 3D API. */ |
| 159 | GrSwizzle fSwizzle; |
| 160 | /** The config that should be used to read from the temp surface after the draw. This may be |
| 161 | different than the original read config in order to compensate for swizzling. The |
| 162 | read data will effectively be in the original read config. */ |
| 163 | GrPixelConfig fReadConfig; |
bsalomon | 3982602 | 2015-07-23 08:07:21 -0700 | [diff] [blame] | 164 | }; |
bsalomon | 6c9cd55 | 2016-01-22 07:17:34 -0800 | [diff] [blame] | 165 | |
bsalomon | 3982602 | 2015-07-23 08:07:21 -0700 | [diff] [blame] | 166 | /** Describes why an intermediate draw must/should be performed before readPixels. */ |
| 167 | enum DrawPreference { |
| 168 | /** On input means that the caller would proceed without draw if the GrGpu doesn't request |
| 169 | one. |
| 170 | On output means that the GrGpu is not requesting a draw. */ |
| 171 | kNoDraw_DrawPreference, |
| 172 | /** Means that the client would prefer a draw for performance of the readback but |
| 173 | can satisfy a straight readPixels call on the inputs without an intermediate draw. |
| 174 | getReadPixelsInfo will never set the draw preference to this value but may leave |
| 175 | it set. */ |
| 176 | kCallerPrefersDraw_DrawPreference, |
| 177 | /** On output means that GrGpu would prefer a draw for performance of the readback but |
| 178 | can satisfy a straight readPixels call on the inputs without an intermediate draw. The |
| 179 | caller of getReadPixelsInfo should never specify this on intput. */ |
| 180 | kGpuPrefersDraw_DrawPreference, |
| 181 | /** On input means that the caller requires a draw to do a transformation and there is no |
| 182 | CPU fallback. |
| 183 | On output means that GrGpu can only satisfy the readPixels request if the intermediate |
| 184 | draw is performed. |
| 185 | */ |
| 186 | kRequireDraw_DrawPreference |
| 187 | }; |
| 188 | |
bsalomon | f067451 | 2015-07-28 13:26:15 -0700 | [diff] [blame] | 189 | /** |
| 190 | * Used to negotiate whether and how an intermediate draw should or must be performed before |
| 191 | * a readPixels call. If this returns false then GrGpu could not deduce an intermediate draw |
| 192 | * that would allow a successful readPixels call. The passed width, height, and rowBytes, |
| 193 | * must be non-zero and already reflect clipping to the src bounds. |
| 194 | */ |
| 195 | bool getReadPixelsInfo(GrSurface* srcSurface, int readWidth, int readHeight, size_t rowBytes, |
| 196 | GrPixelConfig readConfig, DrawPreference*, ReadPixelTempDrawInfo*); |
| 197 | |
cblume | 6121405 | 2016-01-26 09:10:48 -0800 | [diff] [blame] | 198 | /** Info struct returned by getWritePixelsInfo about performing an intermediate draw in order |
bsalomon | f067451 | 2015-07-28 13:26:15 -0700 | [diff] [blame] | 199 | to write pixels to a GrSurface for either performance or correctness reasons. */ |
| 200 | struct WritePixelTempDrawInfo { |
| 201 | /** If the GrGpu is requesting that the caller upload to an intermediate surface and draw |
| 202 | that to the dst then this is the descriptor for the intermediate surface. The caller |
| 203 | should upload the pixels such that the upper left pixel of the upload rect is at 0,0 in |
| 204 | the intermediate surface.*/ |
| 205 | GrSurfaceDesc fTempSurfaceDesc; |
bsalomon | 6c9cd55 | 2016-01-22 07:17:34 -0800 | [diff] [blame] | 206 | /** Swizzle to apply during the draw. This is used to compensate for either feature or |
| 207 | performance limitations in the underlying 3D API. */ |
| 208 | GrSwizzle fSwizzle; |
| 209 | /** The config that should be specified when uploading the *original* data to the temp |
| 210 | surface before the draw. This may be different than the original src data config in |
| 211 | order to compensate for swizzling that will occur when drawing. */ |
| 212 | GrPixelConfig fWriteConfig; |
bsalomon | f067451 | 2015-07-28 13:26:15 -0700 | [diff] [blame] | 213 | }; |
bsalomon | 3982602 | 2015-07-23 08:07:21 -0700 | [diff] [blame] | 214 | |
bsalomon@google.com | 75f9f25 | 2012-01-31 13:35:56 +0000 | [diff] [blame] | 215 | /** |
bsalomon | f067451 | 2015-07-28 13:26:15 -0700 | [diff] [blame] | 216 | * Used to negotiate whether and how an intermediate surface should be used to write pixels to |
| 217 | * a GrSurface. If this returns false then GrGpu could not deduce an intermediate draw |
| 218 | * that would allow a successful transfer of the src pixels to the dst. The passed width, |
| 219 | * height, and rowBytes, must be non-zero and already reflect clipping to the dst bounds. |
bsalomon@google.com | 0a97be2 | 2011-11-08 19:20:57 +0000 | [diff] [blame] | 220 | */ |
cblume | ed82800 | 2016-02-16 13:00:01 -0800 | [diff] [blame] | 221 | bool getWritePixelsInfo(GrSurface* dstSurface, int width, int height, |
bsalomon | f067451 | 2015-07-28 13:26:15 -0700 | [diff] [blame] | 222 | GrPixelConfig srcConfig, DrawPreference*, WritePixelTempDrawInfo*); |
bsalomon@google.com | a85449d | 2011-11-19 02:36:05 +0000 | [diff] [blame] | 223 | |
| 224 | /** |
bsalomon@google.com | a04e8e8 | 2012-08-27 12:53:13 +0000 | [diff] [blame] | 225 | * Reads a rectangle of pixels from a render target. |
bsalomon@google.com | c436499 | 2011-11-07 15:54:49 +0000 | [diff] [blame] | 226 | * |
bsalomon | 6cb3cbe | 2015-07-30 07:34:27 -0700 | [diff] [blame] | 227 | * @param surface The surface to read from |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 228 | * @param left left edge of the rectangle to read (inclusive) |
| 229 | * @param top top edge of the rectangle to read (inclusive) |
| 230 | * @param width width of rectangle to read in pixels. |
| 231 | * @param height height of rectangle to read in pixels. |
| 232 | * @param config the pixel config of the destination buffer |
| 233 | * @param buffer memory to read the rectangle into. |
bsalomon@google.com | c698097 | 2011-11-02 19:57:21 +0000 | [diff] [blame] | 234 | * @param rowBytes the number of bytes between consecutive rows. Zero |
| 235 | * means rows are tightly packed. |
bsalomon@google.com | c436499 | 2011-11-07 15:54:49 +0000 | [diff] [blame] | 236 | * @param invertY buffer should be populated bottom-to-top as opposed |
| 237 | * to top-to-bottom (skia's usual order) |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame] | 238 | * |
| 239 | * @return true if the read succeeded, false if not. The read can fail |
| 240 | * because of a unsupported pixel config or because no render |
| 241 | * target is currently set. |
| 242 | */ |
bsalomon | 6cb3cbe | 2015-07-30 07:34:27 -0700 | [diff] [blame] | 243 | bool readPixels(GrSurface* surface, |
bsalomon@google.com | 669fdc4 | 2011-04-05 17:08:27 +0000 | [diff] [blame] | 244 | int left, int top, int width, int height, |
senorblanco@chromium.org | 3cb406b | 2013-02-05 19:50:46 +0000 | [diff] [blame] | 245 | GrPixelConfig config, void* buffer, size_t rowBytes); |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 246 | |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 247 | /** |
bsalomon | 6cb3cbe | 2015-07-30 07:34:27 -0700 | [diff] [blame] | 248 | * Updates the pixels in a rectangle of a surface. |
bsalomon@google.com | a85449d | 2011-11-19 02:36:05 +0000 | [diff] [blame] | 249 | * |
bsalomon | 6cb3cbe | 2015-07-30 07:34:27 -0700 | [diff] [blame] | 250 | * @param surface The surface to write to. |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 251 | * @param left left edge of the rectangle to write (inclusive) |
| 252 | * @param top top edge of the rectangle to write (inclusive) |
| 253 | * @param width width of rectangle to write in pixels. |
| 254 | * @param height height of rectangle to write in pixels. |
| 255 | * @param config the pixel config of the source buffer |
cblume | 55f2d2d | 2016-02-26 13:20:48 -0800 | [diff] [blame] | 256 | * @param texels array of mipmap levels containing texture data |
| 257 | */ |
| 258 | bool writePixels(GrSurface* surface, |
| 259 | int left, int top, int width, int height, |
| 260 | GrPixelConfig config, |
| 261 | const SkTArray<GrMipLevel>& texels); |
| 262 | |
| 263 | /** |
| 264 | * This function is a shim which creates a SkTArray<GrMipLevel> of size 1. |
| 265 | * It then calls writePixels with that SkTArray. |
| 266 | * |
| 267 | * @param buffer memory to read pixels from. |
| 268 | * @param rowBytes number of bytes between consecutive rows. Zero |
| 269 | * means rows are tightly packed. |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 270 | */ |
bsalomon | 6cb3cbe | 2015-07-30 07:34:27 -0700 | [diff] [blame] | 271 | bool writePixels(GrSurface* surface, |
| 272 | int left, int top, int width, int height, |
| 273 | GrPixelConfig config, const void* buffer, |
| 274 | size_t rowBytes); |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 275 | |
joshualitt | 3322fa4 | 2014-11-07 08:48:51 -0800 | [diff] [blame] | 276 | /** |
cdalton | 397536c | 2016-03-25 12:15:03 -0700 | [diff] [blame] | 277 | * Updates the pixels in a rectangle of a surface using a buffer |
jvanverth | 17aa047 | 2016-01-05 10:41:27 -0800 | [diff] [blame] | 278 | * |
cdalton | 397536c | 2016-03-25 12:15:03 -0700 | [diff] [blame] | 279 | * @param surface The surface to write to. |
| 280 | * @param left left edge of the rectangle to write (inclusive) |
| 281 | * @param top top edge of the rectangle to write (inclusive) |
| 282 | * @param width width of rectangle to write in pixels. |
| 283 | * @param height height of rectangle to write in pixels. |
| 284 | * @param config the pixel config of the source buffer |
| 285 | * @param transferBuffer GrBuffer to read pixels from (type must be "kCpuToGpu") |
| 286 | * @param offset offset from the start of the buffer |
| 287 | * @param rowBytes number of bytes between consecutive rows. Zero |
| 288 | * means rows are tightly packed. |
jvanverth | 17aa047 | 2016-01-05 10:41:27 -0800 | [diff] [blame] | 289 | */ |
| 290 | bool transferPixels(GrSurface* surface, |
| 291 | int left, int top, int width, int height, |
cdalton | 397536c | 2016-03-25 12:15:03 -0700 | [diff] [blame] | 292 | GrPixelConfig config, GrBuffer* transferBuffer, |
jvanverth | 17aa047 | 2016-01-05 10:41:27 -0800 | [diff] [blame] | 293 | size_t offset, size_t rowBytes); |
| 294 | |
| 295 | /** |
egdaniel | 51c8d40 | 2015-08-06 10:54:13 -0700 | [diff] [blame] | 296 | * Clear the passed in render target. Ignores the draw state and clip. |
joshualitt | 3322fa4 | 2014-11-07 08:48:51 -0800 | [diff] [blame] | 297 | */ |
egdaniel | 51c8d40 | 2015-08-06 10:54:13 -0700 | [diff] [blame] | 298 | void clear(const SkIRect& rect, GrColor color, GrRenderTarget* renderTarget); |
joshualitt | 3322fa4 | 2014-11-07 08:48:51 -0800 | [diff] [blame] | 299 | |
| 300 | |
bsalomon | 6d467ec | 2014-11-18 07:36:19 -0800 | [diff] [blame] | 301 | void clearStencilClip(const SkIRect& rect, bool insideClip, GrRenderTarget* renderTarget); |
joshualitt | 3322fa4 | 2014-11-07 08:48:51 -0800 | [diff] [blame] | 302 | |
| 303 | /** |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 304 | * Discards the contents render target. nullptr indicates that the current render target should |
joshualitt | 3322fa4 | 2014-11-07 08:48:51 -0800 | [diff] [blame] | 305 | * be discarded. |
| 306 | **/ |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 307 | virtual void discard(GrRenderTarget* = nullptr) = 0; |
joshualitt | 3322fa4 | 2014-11-07 08:48:51 -0800 | [diff] [blame] | 308 | |
| 309 | /** |
| 310 | * This is can be called before allocating a texture to be a dst for copySurface. It will |
bsalomon | f90a02b | 2014-11-26 12:28:00 -0800 | [diff] [blame] | 311 | * populate the origin, config, and flags fields of the desc such that copySurface can |
| 312 | * efficiently succeed. It should only succeed if it can allow copySurface to perform a copy |
| 313 | * that would be more effecient than drawing the src to a dst render target. |
joshualitt | 3322fa4 | 2014-11-07 08:48:51 -0800 | [diff] [blame] | 314 | */ |
joshualitt | 1c73548 | 2015-07-13 08:08:25 -0700 | [diff] [blame] | 315 | virtual bool initCopySurfaceDstDesc(const GrSurface* src, GrSurfaceDesc* desc) const = 0; |
joshualitt | 6db519c | 2014-10-29 08:48:18 -0700 | [diff] [blame] | 316 | |
bsalomon@google.com | 80d09b9 | 2011-11-05 21:21:13 +0000 | [diff] [blame] | 317 | // After the client interacts directly with the 3D context state the GrGpu |
| 318 | // must resync its internal state and assumptions about 3D context state. |
| 319 | // Each time this occurs the GrGpu bumps a timestamp. |
| 320 | // state of the 3D context |
| 321 | // At 10 resets / frame and 60fps a 64bit timestamp will overflow in about |
| 322 | // a billion years. |
| 323 | typedef uint64_t ResetTimestamp; |
| 324 | |
| 325 | // This timestamp is always older than the current timestamp |
| 326 | static const ResetTimestamp kExpiredTimestamp = 0; |
| 327 | // Returns a timestamp based on the number of times the context was reset. |
| 328 | // This timestamp can be used to lazily detect when cached 3D context state |
| 329 | // is dirty. |
bsalomon | 6d467ec | 2014-11-18 07:36:19 -0800 | [diff] [blame] | 330 | ResetTimestamp getResetTimestamp() const { return fResetTimestamp; } |
bsalomon@google.com | 80d09b9 | 2011-11-05 21:21:13 +0000 | [diff] [blame] | 331 | |
bsalomon | f90a02b | 2014-11-26 12:28:00 -0800 | [diff] [blame] | 332 | // Called to perform a surface to surface copy. Fallbacks to issuing a draw from the src to dst |
| 333 | // take place at the GrDrawTarget level and this function implement faster copy paths. The rect |
| 334 | // and point are pre-clipped. The src rect and implied dst rect are guaranteed to be within the |
| 335 | // src/dst bounds and non-empty. |
joshualitt | 1cbdcde | 2015-08-21 11:53:29 -0700 | [diff] [blame] | 336 | bool copySurface(GrSurface* dst, |
| 337 | GrSurface* src, |
| 338 | const SkIRect& srcRect, |
| 339 | const SkIPoint& dstPoint); |
joshualitt | 3322fa4 | 2014-11-07 08:48:51 -0800 | [diff] [blame] | 340 | |
cdalton | 28f45b9 | 2016-03-07 13:58:26 -0800 | [diff] [blame] | 341 | struct MultisampleSpecs { |
| 342 | // Nonzero ID that uniquely identifies these multisample specs. |
| 343 | uint8_t fUniqueID; |
| 344 | // The actual number of samples the GPU will run. NOTE: this value can be greater than the |
| 345 | // the render target's sample count. |
| 346 | int fEffectiveSampleCnt; |
| 347 | // If sample locations are supported, contains the subpixel locations at which the GPU will |
| 348 | // sample. Pixel center is at (.5, .5) and (0, 0) indicates the top left corner. |
| 349 | SkAutoTDeleteArray<const SkPoint> fSampleLocations; |
| 350 | }; |
| 351 | |
| 352 | // Finds a render target's multisample specs. The stencil settings are only needed to flush the |
| 353 | // draw state prior to querying multisample information; they should not have any effect on the |
| 354 | // multisample information itself. |
| 355 | const MultisampleSpecs& getMultisampleSpecs(GrRenderTarget*, const GrStencilSettings&); |
| 356 | |
egdaniel | 0e1853c | 2016-03-17 11:35:45 -0700 | [diff] [blame] | 357 | // We pass in an array of meshCount GrMesh to the draw. The backend should loop over each |
| 358 | // GrMesh object and emit a draw for it. Each draw will use the same GrPipeline and |
bsalomon | 7dbd45d | 2016-03-23 10:40:53 -0700 | [diff] [blame] | 359 | // GrPrimitiveProcessor. This may fail if the draw would exceed any resource limits (e.g. |
| 360 | // number of vertex attributes is too large). |
| 361 | bool draw(const GrPipeline&, |
egdaniel | 0e1853c | 2016-03-17 11:35:45 -0700 | [diff] [blame] | 362 | const GrPrimitiveProcessor&, |
| 363 | const GrMesh*, |
| 364 | int meshCount); |
bsalomon | 3e79124 | 2014-12-17 13:43:13 -0800 | [diff] [blame] | 365 | |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 366 | // Called by drawtarget when flushing. |
jvanverth | d2d2eb9 | 2016-02-17 14:04:46 -0800 | [diff] [blame] | 367 | // Provides a hook for post-flush actions (e.g. PLS reset and Vulkan command buffer submits). |
| 368 | virtual void finishDrawTarget() {} |
ethannicholas | 2279325 | 2016-01-30 09:59:10 -0800 | [diff] [blame] | 369 | |
mtklein | b9eb4ac | 2015-02-02 18:26:03 -0800 | [diff] [blame] | 370 | /////////////////////////////////////////////////////////////////////////// |
| 371 | // Debugging and Stats |
| 372 | |
| 373 | class Stats { |
| 374 | public: |
| 375 | #if GR_GPU_STATS |
| 376 | Stats() { this->reset(); } |
| 377 | |
bsalomon | b12ea41 | 2015-02-02 21:19:50 -0800 | [diff] [blame] | 378 | void reset() { |
| 379 | fRenderTargetBinds = 0; |
| 380 | fShaderCompilations = 0; |
| 381 | fTextureCreates = 0; |
| 382 | fTextureUploads = 0; |
jvanverth | 17aa047 | 2016-01-05 10:41:27 -0800 | [diff] [blame] | 383 | fTransfersToTexture = 0; |
egdaniel | 8dc7c3a | 2015-04-16 11:22:42 -0700 | [diff] [blame] | 384 | fStencilAttachmentCreates = 0; |
joshualitt | 87a5c9f | 2015-09-08 13:42:05 -0700 | [diff] [blame] | 385 | fNumDraws = 0; |
bsalomon | 1d417a8 | 2016-03-23 11:50:26 -0700 | [diff] [blame] | 386 | fNumFailedDraws = 0; |
bsalomon | b12ea41 | 2015-02-02 21:19:50 -0800 | [diff] [blame] | 387 | } |
mtklein | b9eb4ac | 2015-02-02 18:26:03 -0800 | [diff] [blame] | 388 | |
| 389 | int renderTargetBinds() const { return fRenderTargetBinds; } |
| 390 | void incRenderTargetBinds() { fRenderTargetBinds++; } |
| 391 | int shaderCompilations() const { return fShaderCompilations; } |
| 392 | void incShaderCompilations() { fShaderCompilations++; } |
bsalomon | b12ea41 | 2015-02-02 21:19:50 -0800 | [diff] [blame] | 393 | int textureCreates() const { return fTextureCreates; } |
| 394 | void incTextureCreates() { fTextureCreates++; } |
| 395 | int textureUploads() const { return fTextureUploads; } |
| 396 | void incTextureUploads() { fTextureUploads++; } |
jvanverth | 17aa047 | 2016-01-05 10:41:27 -0800 | [diff] [blame] | 397 | int transfersToTexture() const { return fTransfersToTexture; } |
| 398 | void incTransfersToTexture() { fTransfersToTexture++; } |
egdaniel | 8dc7c3a | 2015-04-16 11:22:42 -0700 | [diff] [blame] | 399 | void incStencilAttachmentCreates() { fStencilAttachmentCreates++; } |
joshualitt | 87a5c9f | 2015-09-08 13:42:05 -0700 | [diff] [blame] | 400 | void incNumDraws() { fNumDraws++; } |
bsalomon | 1d417a8 | 2016-03-23 11:50:26 -0700 | [diff] [blame] | 401 | void incNumFailedDraws() { ++fNumFailedDraws; } |
mtklein | b9eb4ac | 2015-02-02 18:26:03 -0800 | [diff] [blame] | 402 | void dump(SkString*); |
joshualitt | e45c81c | 2015-12-02 09:05:37 -0800 | [diff] [blame] | 403 | void dumpKeyValuePairs(SkTArray<SkString>* keys, SkTArray<double>* values); |
bsalomon | 1d417a8 | 2016-03-23 11:50:26 -0700 | [diff] [blame] | 404 | int numDraws() const { return fNumDraws; } |
| 405 | int numFailedDraws() const { return fNumFailedDraws; } |
mtklein | b9eb4ac | 2015-02-02 18:26:03 -0800 | [diff] [blame] | 406 | private: |
| 407 | int fRenderTargetBinds; |
| 408 | int fShaderCompilations; |
bsalomon | b12ea41 | 2015-02-02 21:19:50 -0800 | [diff] [blame] | 409 | int fTextureCreates; |
| 410 | int fTextureUploads; |
jvanverth | 17aa047 | 2016-01-05 10:41:27 -0800 | [diff] [blame] | 411 | int fTransfersToTexture; |
egdaniel | 8dc7c3a | 2015-04-16 11:22:42 -0700 | [diff] [blame] | 412 | int fStencilAttachmentCreates; |
joshualitt | 87a5c9f | 2015-09-08 13:42:05 -0700 | [diff] [blame] | 413 | int fNumDraws; |
bsalomon | 1d417a8 | 2016-03-23 11:50:26 -0700 | [diff] [blame] | 414 | int fNumFailedDraws; |
mtklein | b9eb4ac | 2015-02-02 18:26:03 -0800 | [diff] [blame] | 415 | #else |
joshualitt | e45c81c | 2015-12-02 09:05:37 -0800 | [diff] [blame] | 416 | void dump(SkString*) {} |
| 417 | void dumpKeyValuePairs(SkTArray<SkString>*, SkTArray<double>*) {} |
mtklein | b9eb4ac | 2015-02-02 18:26:03 -0800 | [diff] [blame] | 418 | void incRenderTargetBinds() {} |
| 419 | void incShaderCompilations() {} |
bsalomon | b12ea41 | 2015-02-02 21:19:50 -0800 | [diff] [blame] | 420 | void incTextureCreates() {} |
| 421 | void incTextureUploads() {} |
jvanverth | 17aa047 | 2016-01-05 10:41:27 -0800 | [diff] [blame] | 422 | void incTransfersToTexture() {} |
egdaniel | 8dc7c3a | 2015-04-16 11:22:42 -0700 | [diff] [blame] | 423 | void incStencilAttachmentCreates() {} |
joshualitt | 87a5c9f | 2015-09-08 13:42:05 -0700 | [diff] [blame] | 424 | void incNumDraws() {} |
bsalomon | 1d417a8 | 2016-03-23 11:50:26 -0700 | [diff] [blame] | 425 | void incNumFailedDraws() {} |
mtklein | b9eb4ac | 2015-02-02 18:26:03 -0800 | [diff] [blame] | 426 | #endif |
| 427 | }; |
| 428 | |
| 429 | Stats* stats() { return &fStats; } |
| 430 | |
bsalomon | 67d7620 | 2015-11-11 12:40:42 -0800 | [diff] [blame] | 431 | /** Creates a texture directly in the backend API without wrapping it in a GrTexture. This is |
| 432 | only to be used for testing (particularly for testing the methods that import an externally |
| 433 | created texture into Skia. Must be matched with a call to deleteTestingOnlyTexture(). */ |
jvanverth | 8895792 | 2015-07-14 11:02:52 -0700 | [diff] [blame] | 434 | virtual GrBackendObject createTestingOnlyBackendTexture(void* pixels, int w, int h, |
bsalomon | e63ffef | 2016-02-05 07:17:34 -0800 | [diff] [blame] | 435 | GrPixelConfig config) = 0; |
bsalomon | 67d7620 | 2015-11-11 12:40:42 -0800 | [diff] [blame] | 436 | /** Check a handle represents an actual texture in the backend API that has not been freed. */ |
| 437 | virtual bool isTestingOnlyBackendTexture(GrBackendObject) const = 0; |
| 438 | /** If ownership of the backend texture has been transferred pass true for abandonTexture. This |
| 439 | will do any necessary cleanup of the handle without freeing the texture in the backend |
| 440 | API. */ |
| 441 | virtual void deleteTestingOnlyBackendTexture(GrBackendObject, |
bsalomon | e63ffef | 2016-02-05 07:17:34 -0800 | [diff] [blame] | 442 | bool abandonTexture = false) = 0; |
jvanverth | 672bb7f | 2015-07-13 07:19:57 -0700 | [diff] [blame] | 443 | |
egdaniel | ec00d94 | 2015-09-14 12:56:10 -0700 | [diff] [blame] | 444 | // width and height may be larger than rt (if underlying API allows it). |
| 445 | // Returns nullptr if compatible sb could not be created, otherwise the caller owns the ref on |
| 446 | // the GrStencilAttachment. |
| 447 | virtual GrStencilAttachment* createStencilAttachmentForRenderTarget(const GrRenderTarget*, |
| 448 | int width, |
| 449 | int height) = 0; |
| 450 | // clears target's entire stencil buffer to 0 |
| 451 | virtual void clearStencil(GrRenderTarget* target) = 0; |
bsalomon | 6bc1b5f | 2015-02-23 09:06:38 -0800 | [diff] [blame] | 452 | |
bsalomon | 6dea83f | 2015-12-03 12:58:06 -0800 | [diff] [blame] | 453 | // draws an outline rectangle for debugging/visualization purposes. |
| 454 | virtual void drawDebugWireRect(GrRenderTarget*, const SkIRect&, GrColor) = 0; |
bsalomon | 045802d | 2015-10-20 07:58:01 -0700 | [diff] [blame] | 455 | |
bsalomon | e179a91 | 2016-01-20 06:18:10 -0800 | [diff] [blame] | 456 | // Determines whether a texture will need to be rescaled in order to be used with the |
| 457 | // GrTextureParams. This variation is called when the caller will create a new texture using the |
| 458 | // texture provider from a non-texture src (cpu-backed image, ...). |
bsalomon | 045802d | 2015-10-20 07:58:01 -0700 | [diff] [blame] | 459 | bool makeCopyForTextureParams(int width, int height, const GrTextureParams&, |
bsalomon | e179a91 | 2016-01-20 06:18:10 -0800 | [diff] [blame] | 460 | GrTextureProducer::CopyParams*) const; |
| 461 | |
| 462 | // Like the above but this variation should be called when the caller is not creating the |
| 463 | // original texture but rather was handed the original texture. It adds additional checks |
| 464 | // relevant to original textures that were created external to Skia via |
| 465 | // GrTextureProvider::wrap methods. |
| 466 | bool makeCopyForTextureParams(GrTexture* texture, const GrTextureParams& params, |
| 467 | GrTextureProducer::CopyParams* copyParams) const { |
| 468 | if (this->makeCopyForTextureParams(texture->width(), texture->height(), params, |
| 469 | copyParams)) { |
| 470 | return true; |
| 471 | } |
| 472 | return this->onMakeCopyForTextureParams(texture, params, copyParams); |
| 473 | } |
bsalomon | 045802d | 2015-10-20 07:58:01 -0700 | [diff] [blame] | 474 | |
jvanverth | 672bb7f | 2015-07-13 07:19:57 -0700 | [diff] [blame] | 475 | // This is only to be used in GL-specific tests. |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 476 | virtual const GrGLContext* glContextForTesting() const { return nullptr; } |
bsalomon | 993a421 | 2015-05-29 11:37:25 -0700 | [diff] [blame] | 477 | |
joshualitt | 8fd844f | 2015-12-02 13:36:47 -0800 | [diff] [blame] | 478 | // This is only to be used by testing code |
| 479 | virtual void resetShaderCacheForTesting() const {} |
| 480 | |
joshualitt | d53a827 | 2014-11-10 16:03:14 -0800 | [diff] [blame] | 481 | protected: |
bsalomon@google.com | d302f14 | 2011-03-03 13:54:13 +0000 | [diff] [blame] | 482 | // Functions used to map clip-respecting stencil tests into normal |
| 483 | // stencil funcs supported by GPUs. |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame] | 484 | static GrStencilFunc ConvertStencilFunc(bool stencilInClip, |
bsalomon@google.com | d302f14 | 2011-03-03 13:54:13 +0000 | [diff] [blame] | 485 | GrStencilFunc func); |
| 486 | static void ConvertStencilFuncAndMask(GrStencilFunc func, |
| 487 | bool clipInStencil, |
| 488 | unsigned int clipBit, |
| 489 | unsigned int userBits, |
| 490 | unsigned int* ref, |
| 491 | unsigned int* mask); |
| 492 | |
bsalomon | f067451 | 2015-07-28 13:26:15 -0700 | [diff] [blame] | 493 | static void ElevateDrawPreference(GrGpu::DrawPreference* preference, |
| 494 | GrGpu::DrawPreference elevation) { |
| 495 | GR_STATIC_ASSERT(GrGpu::kCallerPrefersDraw_DrawPreference > GrGpu::kNoDraw_DrawPreference); |
| 496 | GR_STATIC_ASSERT(GrGpu::kGpuPrefersDraw_DrawPreference > |
| 497 | GrGpu::kCallerPrefersDraw_DrawPreference); |
| 498 | GR_STATIC_ASSERT(GrGpu::kRequireDraw_DrawPreference > |
| 499 | GrGpu::kGpuPrefersDraw_DrawPreference); |
| 500 | *preference = SkTMax(*preference, elevation); |
| 501 | } |
| 502 | |
joshualitt | 93316b9 | 2015-10-23 09:08:08 -0700 | [diff] [blame] | 503 | void handleDirtyContext() { |
| 504 | if (fResetBits) { |
| 505 | this->resetContext(); |
| 506 | } |
| 507 | } |
| 508 | |
mtklein | b9eb4ac | 2015-02-02 18:26:03 -0800 | [diff] [blame] | 509 | Stats fStats; |
| 510 | SkAutoTDelete<GrPathRendering> fPathRendering; |
joshualitt | 3322fa4 | 2014-11-07 08:48:51 -0800 | [diff] [blame] | 511 | // Subclass must initialize this in its constructor. |
bsalomon | 4b91f76 | 2015-05-19 09:29:46 -0700 | [diff] [blame] | 512 | SkAutoTUnref<const GrCaps> fCaps; |
joshualitt | 3322fa4 | 2014-11-07 08:48:51 -0800 | [diff] [blame] | 513 | |
bsalomon@google.com | 02ddc8b | 2013-01-28 15:35:28 +0000 | [diff] [blame] | 514 | private: |
bsalomon@google.com | b635d39 | 2011-11-05 12:47:43 +0000 | [diff] [blame] | 515 | // called when the 3D context state is unknown. Subclass should emit any |
bsalomon@google.com | c8f7f47 | 2012-06-18 13:44:51 +0000 | [diff] [blame] | 516 | // assumed 3D context state and dirty any state cache. |
bsalomon@google.com | 0a208a1 | 2013-06-28 18:57:35 +0000 | [diff] [blame] | 517 | virtual void onResetContext(uint32_t resetBits) = 0; |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame] | 518 | |
bsalomon | cb02b38 | 2015-08-12 11:14:50 -0700 | [diff] [blame] | 519 | // Called before certain draws in order to guarantee coherent results from dst reads. |
| 520 | virtual void xferBarrier(GrRenderTarget*, GrXferBarrierType) = 0; |
| 521 | |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 522 | // overridden by backend-specific derived class to create objects. |
egdaniel | b0e1be2 | 2015-04-22 13:27:39 -0700 | [diff] [blame] | 523 | // Texture size and sample size will have already been validated in base class before |
| 524 | // onCreateTexture/CompressedTexture are called. |
| 525 | virtual GrTexture* onCreateTexture(const GrSurfaceDesc& desc, |
| 526 | GrGpuResource::LifeCycle lifeCycle, |
cblume | 55f2d2d | 2016-02-26 13:20:48 -0800 | [diff] [blame] | 527 | const SkTArray<GrMipLevel>& texels) = 0; |
egdaniel | b0e1be2 | 2015-04-22 13:27:39 -0700 | [diff] [blame] | 528 | virtual GrTexture* onCreateCompressedTexture(const GrSurfaceDesc& desc, |
| 529 | GrGpuResource::LifeCycle lifeCycle, |
cblume | 55f2d2d | 2016-02-26 13:20:48 -0800 | [diff] [blame] | 530 | const SkTArray<GrMipLevel>& texels) = 0; |
| 531 | |
bsalomon | 6dc6f5f | 2015-06-18 09:12:16 -0700 | [diff] [blame] | 532 | virtual GrTexture* onWrapBackendTexture(const GrBackendTextureDesc&, GrWrapOwnership) = 0; |
| 533 | virtual GrRenderTarget* onWrapBackendRenderTarget(const GrBackendRenderTargetDesc&, |
| 534 | GrWrapOwnership) = 0; |
kkinnunen | 49c4c22 | 2016-04-01 04:50:37 -0700 | [diff] [blame] | 535 | virtual GrRenderTarget* onWrapBackendTextureAsRenderTarget(const GrBackendTextureDesc&) = 0; |
mtklein | 044d3c1 | 2016-04-06 18:24:34 -0700 | [diff] [blame] | 536 | virtual GrBuffer* onCreateBuffer(GrBufferType, size_t size, GrAccessPattern) = 0; |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame] | 537 | |
bsalomon | 63b2196 | 2014-11-05 07:05:34 -0800 | [diff] [blame] | 538 | // overridden by backend-specific derived class to perform the clear. |
egdaniel | 51c8d40 | 2015-08-06 10:54:13 -0700 | [diff] [blame] | 539 | virtual void onClear(GrRenderTarget*, const SkIRect& rect, GrColor color) = 0; |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame] | 540 | |
joshualitt | 6db519c | 2014-10-29 08:48:18 -0700 | [diff] [blame] | 541 | // Overridden by backend specific classes to perform a clear of the stencil clip bits. This is |
| 542 | // ONLY used by the the clip target |
mtklein | b9eb4ac | 2015-02-02 18:26:03 -0800 | [diff] [blame] | 543 | virtual void onClearStencilClip(GrRenderTarget*, const SkIRect& rect, bool insideClip) = 0; |
joshualitt | 6db519c | 2014-10-29 08:48:18 -0700 | [diff] [blame] | 544 | |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 545 | // overridden by backend-specific derived class to perform the draw call. |
egdaniel | 0e1853c | 2016-03-17 11:35:45 -0700 | [diff] [blame] | 546 | virtual void onDraw(const GrPipeline&, |
| 547 | const GrPrimitiveProcessor&, |
| 548 | const GrMesh*, |
| 549 | int meshCount) = 0; |
bsalomon | 3e79124 | 2014-12-17 13:43:13 -0800 | [diff] [blame] | 550 | |
bsalomon | e179a91 | 2016-01-20 06:18:10 -0800 | [diff] [blame] | 551 | virtual bool onMakeCopyForTextureParams(GrTexture* texture, const GrTextureParams&, |
| 552 | GrTextureProducer::CopyParams*) const { return false; } |
| 553 | |
bsalomon | f067451 | 2015-07-28 13:26:15 -0700 | [diff] [blame] | 554 | virtual bool onGetReadPixelsInfo(GrSurface* srcSurface, int readWidth, int readHeight, |
| 555 | size_t rowBytes, GrPixelConfig readConfig, DrawPreference*, |
| 556 | ReadPixelTempDrawInfo*) = 0; |
cblume | ed82800 | 2016-02-16 13:00:01 -0800 | [diff] [blame] | 557 | virtual bool onGetWritePixelsInfo(GrSurface* dstSurface, int width, int height, |
bsalomon | f067451 | 2015-07-28 13:26:15 -0700 | [diff] [blame] | 558 | GrPixelConfig srcConfig, DrawPreference*, |
| 559 | WritePixelTempDrawInfo*) = 0; |
| 560 | |
bsalomon | 6cb3cbe | 2015-07-30 07:34:27 -0700 | [diff] [blame] | 561 | // overridden by backend-specific derived class to perform the surface read |
| 562 | virtual bool onReadPixels(GrSurface*, |
egdaniel | 6d901da | 2015-07-30 12:02:15 -0700 | [diff] [blame] | 563 | int left, int top, |
| 564 | int width, int height, |
bsalomon@google.com | c436499 | 2011-11-07 15:54:49 +0000 | [diff] [blame] | 565 | GrPixelConfig, |
| 566 | void* buffer, |
senorblanco@chromium.org | 3cb406b | 2013-02-05 19:50:46 +0000 | [diff] [blame] | 567 | size_t rowBytes) = 0; |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame] | 568 | |
bsalomon | 6cb3cbe | 2015-07-30 07:34:27 -0700 | [diff] [blame] | 569 | // overridden by backend-specific derived class to perform the surface write |
| 570 | virtual bool onWritePixels(GrSurface*, |
| 571 | int left, int top, int width, int height, |
cblume | 55f2d2d | 2016-02-26 13:20:48 -0800 | [diff] [blame] | 572 | GrPixelConfig config, |
| 573 | const SkTArray<GrMipLevel>& texels) = 0; |
bsalomon@google.com | 6f37951 | 2011-11-16 20:36:03 +0000 | [diff] [blame] | 574 | |
jvanverth | 17aa047 | 2016-01-05 10:41:27 -0800 | [diff] [blame] | 575 | // overridden by backend-specific derived class to perform the surface write |
| 576 | virtual bool onTransferPixels(GrSurface*, |
| 577 | int left, int top, int width, int height, |
cdalton | 397536c | 2016-03-25 12:15:03 -0700 | [diff] [blame] | 578 | GrPixelConfig config, GrBuffer* transferBuffer, |
jvanverth | 17aa047 | 2016-01-05 10:41:27 -0800 | [diff] [blame] | 579 | size_t offset, size_t rowBytes) = 0; |
| 580 | |
bsalomon@google.com | 16e3dde | 2012-10-25 18:43:28 +0000 | [diff] [blame] | 581 | // overridden by backend-specific derived class to perform the resolve |
bsalomon@google.com | 75f9f25 | 2012-01-31 13:35:56 +0000 | [diff] [blame] | 582 | virtual void onResolveRenderTarget(GrRenderTarget* target) = 0; |
| 583 | |
joshualitt | 1cbdcde | 2015-08-21 11:53:29 -0700 | [diff] [blame] | 584 | // overridden by backend specific derived class to perform the copy surface |
| 585 | virtual bool onCopySurface(GrSurface* dst, |
| 586 | GrSurface* src, |
| 587 | const SkIRect& srcRect, |
| 588 | const SkIPoint& dstPoint) = 0; |
| 589 | |
cdalton | 28f45b9 | 2016-03-07 13:58:26 -0800 | [diff] [blame] | 590 | // overridden by backend specific derived class to perform the multisample queries |
| 591 | virtual void onGetMultisampleSpecs(GrRenderTarget*, |
| 592 | const GrStencilSettings&, |
| 593 | int* effectiveSampleCnt, |
| 594 | SkAutoTDeleteArray<SkPoint>* sampleLocations) = 0; |
| 595 | |
bsalomon@google.com | b635d39 | 2011-11-05 12:47:43 +0000 | [diff] [blame] | 596 | void resetContext() { |
bsalomon@google.com | 0a208a1 | 2013-06-28 18:57:35 +0000 | [diff] [blame] | 597 | this->onResetContext(fResetBits); |
| 598 | fResetBits = 0; |
bsalomon@google.com | b635d39 | 2011-11-05 12:47:43 +0000 | [diff] [blame] | 599 | ++fResetTimestamp; |
| 600 | } |
| 601 | |
bsalomon@google.com | 02ddc8b | 2013-01-28 15:35:28 +0000 | [diff] [blame] | 602 | ResetTimestamp fResetTimestamp; |
bsalomon@google.com | 0a208a1 | 2013-06-28 18:57:35 +0000 | [diff] [blame] | 603 | uint32_t fResetBits; |
cdalton | 28f45b9 | 2016-03-07 13:58:26 -0800 | [diff] [blame] | 604 | SkTArray<const MultisampleSpecs*, true> fMultisampleSpecsMap; |
| 605 | GrTAllocator<MultisampleSpecs> fMultisampleSpecsAllocator; |
joshualitt | 3322fa4 | 2014-11-07 08:48:51 -0800 | [diff] [blame] | 606 | // The context owns us, not vice-versa, so this ptr is not ref'ed by Gpu. |
| 607 | GrContext* fContext; |
bsalomon@google.com | 02ddc8b | 2013-01-28 15:35:28 +0000 | [diff] [blame] | 608 | |
kkinnunen | cabe20c | 2015-06-01 01:37:26 -0700 | [diff] [blame] | 609 | friend class GrPathRendering; |
joshualitt | 3322fa4 | 2014-11-07 08:48:51 -0800 | [diff] [blame] | 610 | typedef SkRefCnt INHERITED; |
reed@google.com | ac10a2d | 2010-12-22 21:39:39 +0000 | [diff] [blame] | 611 | }; |
| 612 | |
| 613 | #endif |