GrDrawState.h revision 4647f9059825c062169d4d454c12640d82ae16c0
19381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com/* 29381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * Copyright 2011 Google Inc. 39381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * 49381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * Use of this source code is governed by a BSD-style license that can be 59381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * found in the LICENSE file. 69381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com */ 79381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com 89381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com#ifndef GrDrawState_DEFINED 99381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com#define GrDrawState_DEFINED 109381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com 112eaaefd7e6a58339b3f93333f1e9cc92252cc303bsalomon@google.com#include "GrBackendEffectFactory.h" 129381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com#include "GrColor.h" 1308283afc265f1153834256fc1012519813ba6b73bsalomon@google.com#include "GrEffectStage.h" 14cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com#include "GrRefCnt.h" 15cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com#include "GrRenderTarget.h" 169381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com#include "GrStencil.h" 17cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com#include "GrTemplates.h" 1864aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com#include "GrTexture.h" 1968b58c95384dd6c2fd389a5b4bbf8fc468819454bsalomon@google.com#include "effects/GrSimpleTextureEffect.h" 209381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com 21cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com#include "SkMatrix.h" 229381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com#include "SkXfermode.h" 239381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com 24af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.comclass GrPaint; 259381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com 269b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com/** 279b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * Types used to describe format of vertices in arrays 289b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com */ 299b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.comenum GrVertexAttribType { 309b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com kFloat_GrVertexAttribType = 0, 319b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com kVec2f_GrVertexAttribType, 329b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com kVec3f_GrVertexAttribType, 339b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com kVec4f_GrVertexAttribType, 349b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com kVec4ub_GrVertexAttribType, // vector of 4 unsigned bytes, e.g. colors 359b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 369b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com kLast_GrVertexAttribType = kVec4ub_GrVertexAttribType 379b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com}; 389b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.comstatic const int kGrVertexAttribTypeCount = kLast_GrVertexAttribType + 1; 399b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 409b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.comstruct GrVertexAttrib { 41f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com inline void set(GrVertexAttribType type, size_t offset) { 423b0d631cdfe2dcf59e7b7ea60d92566eade7bfc0jvanverth@google.com fType = type; fOffset = offset; 433b0d631cdfe2dcf59e7b7ea60d92566eade7bfc0jvanverth@google.com } 449b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com bool operator==(const GrVertexAttrib& other) const { 459b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com return fType == other.fType && fOffset == other.fOffset; 469b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com }; 479b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com bool operator!=(const GrVertexAttrib& other) const { return !(*this == other); } 489b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 499b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com GrVertexAttribType fType; 509b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com size_t fOffset; 519b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com}; 529b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 539b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.comtemplate <int N> 549b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.comclass GrVertexAttribArray : public SkSTArray<N, GrVertexAttrib, true> {}; 559b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 569b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com/** 579b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * Type used to describe how attributes bind to program usage 589b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com */ 599b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.comtypedef int GrAttribBindings; 609b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 612e3d144dfdbc4596d33baef7396316f88f412cc8bsalomon@google.comclass GrDrawState : public GrRefCnt { 622e3d144dfdbc4596d33baef7396316f88f412cc8bsalomon@google.compublic: 63fa35e3ddcc9d130ce87c927218bdf27879c38711reed@google.com SK_DECLARE_INST_COUNT(GrDrawState) 64d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 659381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com /** 661322134a3a7232e4ae3433733ed425fd9966bd5cbsalomon@google.com * Total number of effect stages. Each stage can host a GrEffect. A stage is enabled if it has a 671322134a3a7232e4ae3433733ed425fd9966bd5cbsalomon@google.com * GrEffect. The effect produces an output color in the fragment shader. It's inputs are the 681322134a3a7232e4ae3433733ed425fd9966bd5cbsalomon@google.com * output from the previous enabled stage and a position. The position is either derived from 691322134a3a7232e4ae3433733ed425fd9966bd5cbsalomon@google.com * the interpolated vertex positions or explicit per-vertex coords, depending upon the 709b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * GrAttribBindings used to draw. 71bf5cad4e9c5808493b35cb9b0000a2d36b7f9b78robertphillips@google.com * 721322134a3a7232e4ae3433733ed425fd9966bd5cbsalomon@google.com * The stages are divided into two sets, color-computing and coverage-computing. The final color 731322134a3a7232e4ae3433733ed425fd9966bd5cbsalomon@google.com * stage produces the final pixel color. The coverage-computing stages function exactly as the 741322134a3a7232e4ae3433733ed425fd9966bd5cbsalomon@google.com * color-computing but the output of the final coverage stage is treated as a fractional pixel 751322134a3a7232e4ae3433733ed425fd9966bd5cbsalomon@google.com * coverage rather than as input to the src/dst color blend step. 761322134a3a7232e4ae3433733ed425fd9966bd5cbsalomon@google.com * 771322134a3a7232e4ae3433733ed425fd9966bd5cbsalomon@google.com * The input color to the first enabled color-stage is either the constant color or interpolated 789b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * per-vertex colors, depending upon GrAttribBindings. The input to the first coverage stage is 794647f9059825c062169d4d454c12640d82ae16c0bsalomon@google.com * either a constant coverage (usually full-coverage) or interpolated per-vertex coverage. 801322134a3a7232e4ae3433733ed425fd9966bd5cbsalomon@google.com * 81cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com * See the documentation of kCoverageDrawing_StateBit for information about disabling the 82cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com * the color / coverage distinction. 83cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com * 841322134a3a7232e4ae3433733ed425fd9966bd5cbsalomon@google.com * Stages 0 through GrPaint::kTotalStages-1 are reserved for stages copied from the client's 851322134a3a7232e4ae3433733ed425fd9966bd5cbsalomon@google.com * GrPaint. Stages GrPaint::kTotalStages through kNumStages-2 are earmarked for use by 861322134a3a7232e4ae3433733ed425fd9966bd5cbsalomon@google.com * GrTextContext and GrPathRenderer-derived classes. kNumStages-1 is earmarked for clipping 87dfdb7e5240276493077b7c6e1f3cc8b8a0e195babsalomon@google.com * by GrClipMaskManager. 889381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com */ 899381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com enum { 90580711694654b8edc70028d09c4211445b661466twiz@google.com kNumStages = 5, 919381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com }; 929381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com 93ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrDrawState() { 9475847199c25121c9989e8dba103ac6002d2132d6reed@google.com#if GR_DEBUG 959b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com VertexAttributesUnitTest(); 9675847199c25121c9989e8dba103ac6002d2132d6reed@google.com#endif 9752a5dcb43b5acbde377f664807b0f75af8bb1666bsalomon@google.com this->reset(); 9852a5dcb43b5acbde377f664807b0f75af8bb1666bsalomon@google.com } 9946f7afb9867200b568c21736da8a8bbb56b20e30bsalomon@google.com 100ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrDrawState(const GrDrawState& state) { 10146f7afb9867200b568c21736da8a8bbb56b20e30bsalomon@google.com *this = state; 10246f7afb9867200b568c21736da8a8bbb56b20e30bsalomon@google.com } 10346f7afb9867200b568c21736da8a8bbb56b20e30bsalomon@google.com 1049ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com virtual ~GrDrawState() { 1057d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com this->disableStages(); 1069ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com } 1079ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com 10852a5dcb43b5acbde377f664807b0f75af8bb1666bsalomon@google.com /** 1097d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com * Resets to the default state. 11008283afc265f1153834256fc1012519813ba6b73bsalomon@google.com * GrEffects will be removed from all stages. 111d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com */ 11252a5dcb43b5acbde377f664807b0f75af8bb1666bsalomon@google.com void reset() { 1139ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com 1147d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com this->disableStages(); 11552a5dcb43b5acbde377f664807b0f75af8bb1666bsalomon@google.com 116ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fRenderTarget.reset(NULL); 117ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com 1189b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com this->setDefaultVertexAttribs(); 1199b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 120ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fColor = 0xffffffff; 121ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fViewMatrix.reset(); 122ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fSrcBlend = kOne_GrBlendCoeff; 123ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fDstBlend = kZero_GrBlendCoeff; 124ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fBlendConstant = 0x0; 125ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fFlagBits = 0x0; 126ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fStencilSettings.setDisabled(); 127ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fFirstCoverageStage = kNumStages; 128ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fCoverage = 0xffffffff; 129ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fColorFilterMode = SkXfermode::kDst_Mode; 130ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fColorFilterColor = 0x0; 131ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fDrawFace = kBoth_DrawFace; 132af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.com } 133af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.com 134af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.com /** 135af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.com * Initializes the GrDrawState based on a GrPaint. Note that GrDrawState 1361e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com * encompasses more than GrPaint. Aspects of GrDrawState that have no 137af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.com * GrPaint equivalents are not modified. GrPaint has fewer stages than 138af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.com * GrDrawState. The extra GrDrawState stages are disabled. 139af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.com */ 140af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.com void setFromPaint(const GrPaint& paint); 1418f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 1428f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 1439b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com /// @name Vertex Attributes 144cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com //// 145cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com 1469b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com enum { 1479b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com kVertexAttribCnt = 6, 148af3a3b9fb1f3be46082013a2d1977d12faf1f61crobertphillips@google.com }; 149cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com 1509b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com /** 151f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com * The format of vertices is represented as an array of vertex attribute 152f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com * pair, with each pair representing the type of the attribute and the 153f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com * offset in the vertex structure (see GrVertexAttrib, above). 154cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com * 1559b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * This will only set up the vertex geometry. To bind the attributes in 156f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com * the shaders, attribute indices and attribute bindings need to be set 1579b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * as well. 158cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com */ 159af3a3b9fb1f3be46082013a2d1977d12faf1f61crobertphillips@google.com 160af3a3b9fb1f3be46082013a2d1977d12faf1f61crobertphillips@google.com /** 161f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com * Sets vertex attributes for next draw. 162af3a3b9fb1f3be46082013a2d1977d12faf1f61crobertphillips@google.com * 163f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com * @param attribs the array of vertex attributes to set. 1649b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * @param count the number of attributes being set. 165f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com * limited to a count of kVertexAttribCnt. 166af3a3b9fb1f3be46082013a2d1977d12faf1f61crobertphillips@google.com */ 1679b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com void setVertexAttribs(const GrVertexAttrib attribs[], int count); 168af3a3b9fb1f3be46082013a2d1977d12faf1f61crobertphillips@google.com 1699b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com const GrVertexAttrib* getVertexAttribs() const { return fVertexAttribs.begin(); } 1709b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com int getVertexAttribCount() const { return fVertexAttribs.count(); } 1719b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 1729b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com size_t getVertexSize() const; 173af3a3b9fb1f3be46082013a2d1977d12faf1f61crobertphillips@google.com 174af3a3b9fb1f3be46082013a2d1977d12faf1f61crobertphillips@google.com /** 175f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com * Sets default vertex attributes for next draw. 176af3a3b9fb1f3be46082013a2d1977d12faf1f61crobertphillips@google.com * 1779b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * This will also set default vertex attribute indices and bindings 178af3a3b9fb1f3be46082013a2d1977d12faf1f61crobertphillips@google.com */ 1799b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com void setDefaultVertexAttribs(); 180af3a3b9fb1f3be46082013a2d1977d12faf1f61crobertphillips@google.com 181ff6ea2663f76aa85ec55ddd0f00ca7906f1bc4e3commit-bot@chromium.org bool validateVertexAttribs() const; 182ff6ea2663f76aa85ec55ddd0f00ca7906f1bc4e3commit-bot@chromium.org 1839b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com //////////////////////////////////////////////////////////////////////////// 1849b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com // Helpers for picking apart vertex attributes 185af3a3b9fb1f3be46082013a2d1977d12faf1f61crobertphillips@google.com 1869b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com // helper array to let us check the expected so we know what bound attrib indices 1879b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com // we care about 1889b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com static const size_t kVertexAttribSizes[kGrVertexAttribTypeCount]; 189cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com 190cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com /** 191cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com * Accessing positions, texture coords, or colors, of a vertex within an 192cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com * array is a hassle involving casts and simple math. These helpers exist 193cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com * to keep GrDrawTarget clients' code a bit nicer looking. 194cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com */ 195cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com 196cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com /** 197cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com * Gets a pointer to a GrPoint of a vertex's position or texture 198cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com * coordinate. 1999b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * @param vertices the vertex array 200cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com * @param vertexIndex the index of the vertex in the array 201cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com * @param vertexSize the size of each vertex in the array 202cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com * @param offset the offset in bytes of the vertex component. 203cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com * Defaults to zero (corresponding to vertex position) 204cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com * @return pointer to the vertex component as a GrPoint 205cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com */ 206cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com static GrPoint* GetVertexPoint(void* vertices, 207cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com int vertexIndex, 208cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com int vertexSize, 209cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com int offset = 0) { 210cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com intptr_t start = GrTCast<intptr_t>(vertices); 211cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com return GrTCast<GrPoint*>(start + offset + 212cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com vertexIndex * vertexSize); 213cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com } 214cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com static const GrPoint* GetVertexPoint(const void* vertices, 215cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com int vertexIndex, 216cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com int vertexSize, 217cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com int offset = 0) { 218cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com intptr_t start = GrTCast<intptr_t>(vertices); 219cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com return GrTCast<const GrPoint*>(start + offset + 220cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com vertexIndex * vertexSize); 221cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com } 222cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com 223cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com /** 224cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com * Gets a pointer to a GrColor inside a vertex within a vertex array. 225cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com * @param vertices the vetex array 226cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com * @param vertexIndex the index of the vertex in the array 227cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com * @param vertexSize the size of each vertex in the array 228cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com * @param offset the offset in bytes of the vertex color 229cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com * @return pointer to the vertex component as a GrColor 230cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com */ 231cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com static GrColor* GetVertexColor(void* vertices, 232cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com int vertexIndex, 233cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com int vertexSize, 234cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com int offset) { 235cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com intptr_t start = GrTCast<intptr_t>(vertices); 236cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com return GrTCast<GrColor*>(start + offset + 237cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com vertexIndex * vertexSize); 238cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com } 239cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com static const GrColor* GetVertexColor(const void* vertices, 240cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com int vertexIndex, 241cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com int vertexSize, 242cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com int offset) { 243cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com const intptr_t start = GrTCast<intptr_t>(vertices); 244cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com return GrTCast<const GrColor*>(start + offset + 245cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com vertexIndex * vertexSize); 246cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com } 247cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com 2489b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com /// @} 2499b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 2509b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com /////////////////////////////////////////////////////////////////////////// 2519b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com /// @name Attribute Bindings 2529b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com //// 2539b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 2549b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com /** 255f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com * The vertex data used by the current program is represented as a bitfield 256f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com * of flags. Programs always use positions and may also use texture 257c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * coordinates, per-vertex colors, per-vertex coverage and edge data. The 258c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * local coords accessible by effects may either come from positions or 259c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * be specified explicitly. 2609b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com */ 2619b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 2629b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com /** 2639b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * Additional Bits that can be specified in GrAttribBindings. 2649b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com */ 2659b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com enum AttribBindingsBits { 266c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com /** explicit local coords are provided (instead of using pre-view-matrix positions) */ 267c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com kLocalCoords_AttribBindingsBit = 0x1, 2689b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com /* program uses colors (GrColor) */ 269c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com kColor_AttribBindingsBit = 0x2, 2709b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com /* program uses coverage (GrColor) 2719b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com */ 272c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com kCoverage_AttribBindingsBit = 0x4, 2739b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com // for below assert 2749b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com kDummyAttribBindingsBit, 2759b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com kHighAttribBindingsBit = kDummyAttribBindingsBit - 1 2769b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com }; 2779b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com // make sure we haven't exceeded the number of bits in GrAttribBindings. 2789b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com GR_STATIC_ASSERT(kHighAttribBindingsBit < ((uint64_t)1 << 8*sizeof(GrAttribBindings))); 2799b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 2809b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com enum AttribBindings { 2819b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com kDefault_AttribBindings = 0 2829b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com }; 2839b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 2849b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com /** 2859b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * Sets attribute bindings for next draw. 2869b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * 2879b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * @param bindings the attribute bindings to set. 2889b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com */ 2899b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com void setAttribBindings(GrAttribBindings bindings) { fCommon.fAttribBindings = bindings; } 2909b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 2919b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com GrAttribBindings getAttribBindings() const { return fCommon.fAttribBindings; } 2929b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 2939b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com //////////////////////////////////////////////////////////////////////////// 2949b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com // Helpers for picking apart attribute bindings 2959b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 2969b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com /** 2979b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * Determines whether src alpha is guaranteed to be one for all src pixels 2989b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com */ 2999b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com bool srcAlphaWillBeOne(GrAttribBindings) const; 3009b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 3019b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com /** 3029b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * Determines whether the output coverage is guaranteed to be one for all pixels hit by a draw. 3039b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com */ 3049b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com bool hasSolidCoverage(GrAttribBindings) const; 3059b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 3069b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com static void VertexAttributesUnitTest(); 30791274b99722d9be62e077ab979c630c23cdd04b1skia.committer@gmail.com 3089b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com /// @} 3099b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 3109b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com /////////////////////////////////////////////////////////////////////////// 3119b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com /// @name Vertex Attribute Indices 3129b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com //// 3139b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 3149b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com /** 3159b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * Vertex attribute indices map the data set in the vertex attribute array 3169b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * to the bindings specified in the attribute bindings. Each binding type 317f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com * has an associated index in the attribute array. This index is used to 318f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com * look up the vertex attribute data from the array, and potentially as the 3199b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * attribute index if we're binding attributes in GL. 320f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com * 3219b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * Indices which do not have active attribute bindings will be ignored. 3229b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com */ 3239b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 3249b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com enum AttribIndex { 3259b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com kPosition_AttribIndex = 0, 3269b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com kColor_AttribIndex, 3279b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com kCoverage_AttribIndex, 328c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com kLocalCoords_AttribIndex, 3299b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 330c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com kLast_AttribIndex = kLocalCoords_AttribIndex 3319b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com }; 3329b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com static const int kAttribIndexCount = kLast_AttribIndex + 1; 3339b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 3349b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com // these are used when vertex color and coverage isn't set 3359b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com enum { 3369b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com kColorOverrideAttribIndexValue = GrDrawState::kVertexAttribCnt, 3379b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com kCoverageOverrideAttribIndexValue = GrDrawState::kVertexAttribCnt+1, 3389b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com }; 3399b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 3409b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com //////////////////////////////////////////////////////////////////////////// 341f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com // Helpers to set attribute indices. These should match the index in the 342f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com // current attribute index array. 3439b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 3449b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com /** 345f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com * Sets index for next draw. This is used to look up the offset 3469b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * from the current vertex attribute array and to bind the attributes. 3479b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * 3489b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * @param index the attribute index we're setting 3499b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com * @param value the value of the index 3509b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com */ 3519b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com void setAttribIndex(AttribIndex index, int value) { fAttribIndices[index] = value; } 3529b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 3539b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com int getAttribIndex(AttribIndex index) const { return fAttribIndices[index]; } 354cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com 355cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com /// @} 356cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com 357cc78238f0b6aa1a7b3fc767758d9eeef4c1bffa9jvanverth@google.com /////////////////////////////////////////////////////////////////////////// 3588f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name Color 3598f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 3608f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 3618f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 3628f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Sets color for next draw to a premultiplied-alpha color. 3638f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 3648f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param color the color to set. 3658f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 366ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com void setColor(GrColor color) { fCommon.fColor = color; } 3678f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 368ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrColor getColor() const { return fCommon.fColor; } 3698f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 3708f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 3718f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Sets the color to be used for the next draw to be 3728f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * (r,g,b,a) = (alpha, alpha, alpha, alpha). 3738f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 3748f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param alpha The alpha value to set as the color. 3758f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 3768f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void setAlpha(uint8_t a) { 3778f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com this->setColor((a << 24) | (a << 16) | (a << 8) | a); 3788f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 3798f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 3808f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 3818f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Add a color filter that can be represented by a color and a mode. Applied 382c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * after color-computing effect stages. 3838f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 3848f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void setColorFilter(GrColor c, SkXfermode::Mode mode) { 385ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fColorFilterColor = c; 386ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fColorFilterMode = mode; 3878f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 3888f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 389ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrColor getColorFilterColor() const { return fCommon.fColorFilterColor; } 390ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com SkXfermode::Mode getColorFilterMode() const { return fCommon.fColorFilterMode; } 3918f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 3925b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com /** 3935b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com * Constructor sets the color to be 'color' which is undone by the destructor. 3945b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com */ 3955b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com class AutoColorRestore : public ::GrNoncopyable { 3965b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com public: 39766a58aca8379a33ccc7572a31c74a3334d08b47csugoi@google.com AutoColorRestore() : fDrawState(NULL), fOldColor(0) {} 398d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 3995b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com AutoColorRestore(GrDrawState* drawState, GrColor color) { 400d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com fDrawState = NULL; 401d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com this->set(drawState, color); 402d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com } 403d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 404d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void reset() { 405d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com if (NULL != fDrawState) { 406d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com fDrawState->setColor(fOldColor); 407d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com fDrawState = NULL; 408d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com } 409d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com } 410d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 411d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com void set(GrDrawState* drawState, GrColor color) { 412d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com this->reset(); 4135b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com fDrawState = drawState; 4145b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com fOldColor = fDrawState->getColor(); 4155b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com fDrawState->setColor(color); 4165b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com } 417d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com 418d62e88e5af39347a8fc2a5abdf5feb67d7ea256dbsalomon@google.com ~AutoColorRestore() { this->reset(); } 4195b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com private: 4205b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com GrDrawState* fDrawState; 4215b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com GrColor fOldColor; 4225b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com }; 4235b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com 4248f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 4258f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 4268f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 4272401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com /// @name Coverage 4282401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com //// 4292401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com 4302401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com /** 431d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * Sets a constant fractional coverage to be applied to the draw. The 4322401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com * initial value (after construction or reset()) is 0xff. The constant 4332401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com * coverage is ignored when per-vertex coverage is provided. 4342401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com */ 4352401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com void setCoverage(uint8_t coverage) { 436ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fCoverage = GrColorPackRGBA(coverage, coverage, coverage, coverage); 4372401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com } 4382401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com 4392401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com /** 4402401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com * Version of above that specifies 4 channel per-vertex color. The value 4412401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com * should be premultiplied. 4422401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com */ 4432401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com void setCoverage4(GrColor coverage) { 444ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fCoverage = coverage; 4452401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com } 4462401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com 4472401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com GrColor getCoverage() const { 448ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com return fCommon.fCoverage; 4492401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com } 4502401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com 4512401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com /// @} 4522401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com 4532401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 454adc6536fe5baff2216fb76ecda6cc81c61109d5cbsalomon@google.com /// @name Effect Stages 4558f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 4568f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 45765eb4d5a210884cc92c43a8582cbd1ccbddcab57jvanverth@google.com const GrEffectRef* setEffect(int stageIdx, const GrEffectRef* effect) { 45865eb4d5a210884cc92c43a8582cbd1ccbddcab57jvanverth@google.com fStages[stageIdx].setEffect(effect); 45965eb4d5a210884cc92c43a8582cbd1ccbddcab57jvanverth@google.com return effect; 46065eb4d5a210884cc92c43a8582cbd1ccbddcab57jvanverth@google.com } 46101c34ee59906f729f6ca7d35f0c0e5e2f5e693feskia.committer@gmail.com 46291274b99722d9be62e077ab979c630c23cdd04b1skia.committer@gmail.com const GrEffectRef* setEffect(int stageIdx, const GrEffectRef* effect, 46365eb4d5a210884cc92c43a8582cbd1ccbddcab57jvanverth@google.com int attr0, int attr1 = -1) { 46465eb4d5a210884cc92c43a8582cbd1ccbddcab57jvanverth@google.com fStages[stageIdx].setEffect(effect, attr0, attr1); 465adc6536fe5baff2216fb76ecda6cc81c61109d5cbsalomon@google.com return effect; 466adc6536fe5baff2216fb76ecda6cc81c61109d5cbsalomon@google.com } 467adc6536fe5baff2216fb76ecda6cc81c61109d5cbsalomon@google.com 4688f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 469c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * Creates a GrSimpleTextureEffect that uses local coords as texture coordinates. 4701e8f016305805d4d8cad74aba3a21b78486f9d6ftomhudson@google.com */ 471b9086a026844e4cfd08b219e49ce3f12294cba98bsalomon@google.com void createTextureEffect(int stageIdx, GrTexture* texture, const SkMatrix& matrix) { 47208283afc265f1153834256fc1012519813ba6b73bsalomon@google.com GrAssert(!this->getStage(stageIdx).getEffect()); 47368b58c95384dd6c2fd389a5b4bbf8fc468819454bsalomon@google.com GrEffectRef* effect = GrSimpleTextureEffect::Create(texture, matrix); 474adc6536fe5baff2216fb76ecda6cc81c61109d5cbsalomon@google.com this->setEffect(stageIdx, effect)->unref(); 475dfdb7e5240276493077b7c6e1f3cc8b8a0e195babsalomon@google.com } 47608283afc265f1153834256fc1012519813ba6b73bsalomon@google.com void createTextureEffect(int stageIdx, 47708283afc265f1153834256fc1012519813ba6b73bsalomon@google.com GrTexture* texture, 478b9086a026844e4cfd08b219e49ce3f12294cba98bsalomon@google.com const SkMatrix& matrix, 479dfdb7e5240276493077b7c6e1f3cc8b8a0e195babsalomon@google.com const GrTextureParams& params) { 48008283afc265f1153834256fc1012519813ba6b73bsalomon@google.com GrAssert(!this->getStage(stageIdx).getEffect()); 48168b58c95384dd6c2fd389a5b4bbf8fc468819454bsalomon@google.com GrEffectRef* effect = GrSimpleTextureEffect::Create(texture, matrix, params); 482adc6536fe5baff2216fb76ecda6cc81c61109d5cbsalomon@google.com this->setEffect(stageIdx, effect)->unref(); 4831ce49fc91714ce8974d11246d29ebe7b97b5fe98bsalomon@google.com } 4841ce49fc91714ce8974d11246d29ebe7b97b5fe98bsalomon@google.com 4857d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com bool stagesDisabled() { 4867d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com for (int i = 0; i < kNumStages; ++i) { 48708283afc265f1153834256fc1012519813ba6b73bsalomon@google.com if (NULL != fStages[i].getEffect()) { 4887d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com return false; 4897d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com } 4907d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com } 4913eee8fbe0f280bc1dea59dc0b0ebd8021b51137ftomhudson@google.com return true; 4927d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com } 493676e66096c60615bac52f365111596de5c4ca8a6tomhudson@google.com 49491274b99722d9be62e077ab979c630c23cdd04b1skia.committer@gmail.com void disableStage(int stageIdx) { 49565eb4d5a210884cc92c43a8582cbd1ccbddcab57jvanverth@google.com this->setEffect(stageIdx, NULL); 496ff6ea2663f76aa85ec55ddd0f00ca7906f1bc4e3commit-bot@chromium.org } 497676e66096c60615bac52f365111596de5c4ca8a6tomhudson@google.com 498972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com /** 499f271cc7183fe48ac64d2d9a454eb013c91b42d53bsalomon@google.com * Release all the GrEffects referred to by this draw state. 500972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com */ 5017d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com void disableStages() { 502972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com for (int i = 0; i < kNumStages; ++i) { 503676e66096c60615bac52f365111596de5c4ca8a6tomhudson@google.com this->disableStage(i); 504972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com } 505972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com } 506972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com 5077d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com class AutoStageDisable : public ::GrNoncopyable { 508972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com public: 5097d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com AutoStageDisable(GrDrawState* ds) : fDrawState(ds) {} 5107d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com ~AutoStageDisable() { 511972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com if (NULL != fDrawState) { 5127d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com fDrawState->disableStages(); 513972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com } 514972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com } 515972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com private: 516972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com GrDrawState* fDrawState; 517972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com }; 518972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com 5198f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 52008283afc265f1153834256fc1012519813ba6b73bsalomon@google.com * Returns the current stage by index. 5218f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 52208283afc265f1153834256fc1012519813ba6b73bsalomon@google.com const GrEffectStage& getStage(int stageIdx) const { 52308283afc265f1153834256fc1012519813ba6b73bsalomon@google.com GrAssert((unsigned)stageIdx < kNumStages); 52408283afc265f1153834256fc1012519813ba6b73bsalomon@google.com return fStages[stageIdx]; 5258f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 5268f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 5278f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 528c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * Called when the source coord system is changing. This ensures that effects will see the 529c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * correct local coordinates. oldToNew gives the transformation from the old coord system in 530c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com * which the geometry was specified to the new coordinate system from which it will be rendered. 5318f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 532c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com void localCoordChange(const SkMatrix& oldToNew) { 533e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com for (int i = 0; i < kNumStages; ++i) { 534e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com if (this->isStageEnabled(i)) { 535c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com fStages[i].localCoordChange(oldToNew); 536e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com } 537e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com } 538e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com } 539e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com 5408f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 5418f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 5428f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 5438f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name Coverage / Color Stages 5448f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 5458f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 5468f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 5478f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * A common pattern is to compute a color with the initial stages and then 5488f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * modulate that color by a coverage value in later stage(s) (AA, mask- 549d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * filters, glyph mask, etc). Color-filters, xfermodes, etc should be 550d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * computed based on the pre-coverage-modulated color. The division of 551d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * stages between color-computing and coverage-computing is specified by 5528f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * this method. Initially this is kNumStages (all stages 5538f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * are color-computing). 5548f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 5558f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void setFirstCoverageStage(int firstCoverageStage) { 5568f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrAssert((unsigned)firstCoverageStage <= kNumStages); 557ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fFirstCoverageStage = firstCoverageStage; 5588f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 5598f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 5608f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 5618f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Gets the index of the first coverage-computing stage. 5628f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 5638f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com int getFirstCoverageStage() const { 564ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com return fCommon.fFirstCoverageStage; 5658f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 5668f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 5678f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com ///@} 5688f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 5698f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 5708f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name Blending 5718f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 5728f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 5738f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 5741e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com * Sets the blending function coefficients. 5758f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 5768f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * The blend function will be: 5778f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * D' = sat(S*srcCoef + D*dstCoef) 5788f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 5798f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * where D is the existing destination color, S is the incoming source 5808f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * color, and D' is the new destination color that will be written. sat() 5818f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * is the saturation function. 5828f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 5831e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com * @param srcCoef coefficient applied to the src color. 5841e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com * @param dstCoef coefficient applied to the dst color. 5858f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 5868f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void setBlendFunc(GrBlendCoeff srcCoeff, GrBlendCoeff dstCoeff) { 587ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fSrcBlend = srcCoeff; 588ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fDstBlend = dstCoeff; 5898f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com #if GR_DEBUG 5908f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com switch (dstCoeff) { 59147059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com case kDC_GrBlendCoeff: 59247059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com case kIDC_GrBlendCoeff: 59347059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com case kDA_GrBlendCoeff: 59447059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com case kIDA_GrBlendCoeff: 5958f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrPrintf("Unexpected dst blend coeff. Won't work correctly with" 5968f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com "coverage stages.\n"); 5978f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com break; 5988f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com default: 5998f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com break; 6008f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 6018f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com switch (srcCoeff) { 60247059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com case kSC_GrBlendCoeff: 60347059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com case kISC_GrBlendCoeff: 60447059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com case kSA_GrBlendCoeff: 60547059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com case kISA_GrBlendCoeff: 6068f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrPrintf("Unexpected src blend coeff. Won't work correctly with" 6078f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com "coverage stages.\n"); 6088f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com break; 6098f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com default: 6108f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com break; 6118f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 6128f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com #endif 6138f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 6148f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 615ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrBlendCoeff getSrcBlendCoeff() const { return fCommon.fSrcBlend; } 616ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrBlendCoeff getDstBlendCoeff() const { return fCommon.fDstBlend; } 6178f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 6188f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void getDstBlendCoeff(GrBlendCoeff* srcBlendCoeff, 6198f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrBlendCoeff* dstBlendCoeff) const { 620ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com *srcBlendCoeff = fCommon.fSrcBlend; 621ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com *dstBlendCoeff = fCommon.fDstBlend; 6228f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 6238f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 6248f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 6258f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Sets the blending function constant referenced by the following blending 6261e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com * coefficients: 62747059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com * kConstC_GrBlendCoeff 62847059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com * kIConstC_GrBlendCoeff 62947059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com * kConstA_GrBlendCoeff 63047059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com * kIConstA_GrBlendCoeff 6318f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 6328f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param constant the constant to set 6338f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 634ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com void setBlendConstant(GrColor constant) { fCommon.fBlendConstant = constant; } 6358f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 6368f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 6378f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Retrieves the last value set by setBlendConstant() 6388f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @return the blending constant value 6398f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 640ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrColor getBlendConstant() const { return fCommon.fBlendConstant; } 6418f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 6422b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com /** 6432b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * Determines whether multiplying the computed per-pixel color by the pixel's fractional 6442b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * coverage before the blend will give the correct final destination color. In general it 6452b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * will not as coverage is applied after blending. 6462b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com */ 6472b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com bool canTweakAlphaForCoverage() const; 6482b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com 6492b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com /** 6502b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * Optimizations for blending / coverage to that can be applied based on the current state. 6512b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com */ 6522b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com enum BlendOptFlags { 6532b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com /** 6542b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * No optimization 6552b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com */ 6562b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com kNone_BlendOpt = 0, 6572b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com /** 6582b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * Don't draw at all 6592b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com */ 6602b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com kSkipDraw_BlendOptFlag = 0x1, 6612b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com /** 6622b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * Emit the src color, disable HW blending (replace dst with src) 6632b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com */ 6642b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com kDisableBlend_BlendOptFlag = 0x2, 6652b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com /** 6662b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * The coverage value does not have to be computed separately from alpha, the the output 6672b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * color can be the modulation of the two. 6682b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com */ 6692b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com kCoverageAsAlpha_BlendOptFlag = 0x4, 6702b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com /** 6712b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * Instead of emitting a src color, emit coverage in the alpha channel and r,g,b are 6722b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * "don't cares". 6732b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com */ 6742b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com kEmitCoverage_BlendOptFlag = 0x8, 6752b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com /** 6762b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * Emit transparent black instead of the src color, no need to compute coverage. 6772b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com */ 6782b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com kEmitTransBlack_BlendOptFlag = 0x10, 6792b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com }; 6802b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com GR_DECL_BITFIELD_OPS_FRIENDS(BlendOptFlags); 6812b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com 6822b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com /** 6832b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * Determines what optimizations can be applied based on the blend. The coefficients may have 6842b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * to be tweaked in order for the optimization to work. srcCoeff and dstCoeff are optional 6852b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * params that receive the tweaked coefficients. Normally the function looks at the current 6862b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * state to see if coverage is enabled. By setting forceCoverage the caller can speculatively 6872b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * determine the blend optimizations that would be used if there was partial pixel coverage. 6882b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * 6892b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * Subclasses of GrDrawTarget that actually draw (as opposed to those that just buffer for 6902b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com * playback) must call this function and respect the flags that replace the output color. 6912b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com */ 6922b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com BlendOptFlags getBlendOpts(bool forceCoverage = false, 6932b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com GrBlendCoeff* srcCoeff = NULL, 6942b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com GrBlendCoeff* dstCoeff = NULL) const; 6952b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com 6968f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 6978f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 6988f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 6998f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name View Matrix 7008f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 7018f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 7028f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 703a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com * Sets the matrix applied to vertex positions. 7048f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 7058f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * In the post-view-matrix space the rectangle [0,w]x[0,h] 7068f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * fully covers the render target. (w and h are the width and height of the 707ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com * the render-target.) 7088f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 709ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com void setViewMatrix(const SkMatrix& m) { fCommon.fViewMatrix = m; } 7108f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 7118f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 7128f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Gets a writable pointer to the view matrix. 7138f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 714ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com SkMatrix* viewMatrix() { return &fCommon.fViewMatrix; } 7158f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 7168f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 7178f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Multiplies the current view matrix by a matrix 7188f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 7198f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * After this call V' = V*m where V is the old view matrix, 7208f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * m is the parameter to this function, and V' is the new view matrix. 7218f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * (We consider positions to be column vectors so position vector p is 7228f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * transformed by matrix X as p' = X*p.) 7238f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 7248f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param m the matrix used to modify the view matrix. 7258f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 726ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com void preConcatViewMatrix(const SkMatrix& m) { fCommon.fViewMatrix.preConcat(m); } 7278f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 7288f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 7298f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Multiplies the current view matrix by a matrix 7308f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 7318f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * After this call V' = m*V where V is the old view matrix, 7328f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * m is the parameter to this function, and V' is the new view matrix. 7338f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * (We consider positions to be column vectors so position vector p is 7348f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * transformed by matrix X as p' = X*p.) 7358f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 7368f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param m the matrix used to modify the view matrix. 7378f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 738ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com void postConcatViewMatrix(const SkMatrix& m) { fCommon.fViewMatrix.postConcat(m); } 7398f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 7408f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 7418f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Retrieves the current view matrix 7428f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @return the current view matrix. 7438f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 744ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com const SkMatrix& getViewMatrix() const { return fCommon.fViewMatrix; } 7458f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 7468f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 7478f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Retrieves the inverse of the current view matrix. 7488f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 7498f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * If the current view matrix is invertible, return true, and if matrix 7508f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * is non-null, copy the inverse into it. If the current view matrix is 7518f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * non-invertible, return false and ignore the matrix parameter. 7528f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 7538f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param matrix if not null, will receive a copy of the current inverse. 7548f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 755b9086a026844e4cfd08b219e49ce3f12294cba98bsalomon@google.com bool getViewInverse(SkMatrix* matrix) const { 7568f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com // TODO: determine whether we really need to leave matrix unmodified 7578f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com // at call sites when inversion fails. 758b9086a026844e4cfd08b219e49ce3f12294cba98bsalomon@google.com SkMatrix inverse; 759ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com if (fCommon.fViewMatrix.invert(&inverse)) { 7608f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com if (matrix) { 7618f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com *matrix = inverse; 7628f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 7638f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com return true; 7648f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 7658f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com return false; 7668f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 7678f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 7685b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com //////////////////////////////////////////////////////////////////////////// 7695b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com 7705b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com /** 7712fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com * Preconcats the current view matrix and restores the previous view matrix in the destructor. 772c196b522d06919885c6bbe28b7b06d2e5b2cb9bfbsalomon@google.com * Effect matrices are automatically adjusted to compensate. 7735b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com */ 7748f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com class AutoViewMatrixRestore : public ::GrNoncopyable { 7758f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com public: 7768f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com AutoViewMatrixRestore() : fDrawState(NULL) {} 7772fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 778c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com AutoViewMatrixRestore(GrDrawState* ds, const SkMatrix& preconcatMatrix) { 7798f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fDrawState = NULL; 780c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com this->set(ds, preconcatMatrix); 7818f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 7822fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 7832fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com ~AutoViewMatrixRestore() { this->restore(); } 7842fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 785a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com /** 786a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com * Can be called prior to destructor to restore the original matrix. 787a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com */ 7882fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com void restore(); 789f467ce7bc33af5f496e0619387551aedec6d2517skia.committer@gmail.com 790c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com void set(GrDrawState* drawState, const SkMatrix& preconcatMatrix); 7912fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 792ded4f4b163f5aa19c22c871178c55ecb34623846bsalomon@google.com bool isSet() const { return NULL != fDrawState; } 7932fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 7948f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com private: 795288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com GrDrawState* fDrawState; 796b9086a026844e4cfd08b219e49ce3f12294cba98bsalomon@google.com SkMatrix fViewMatrix; 79708283afc265f1153834256fc1012519813ba6b73bsalomon@google.com GrEffectStage::SavedCoordChange fSavedCoordChanges[GrDrawState::kNumStages]; 798288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com uint32_t fRestoreMask; 7999381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com }; 8009381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com 8015b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com //////////////////////////////////////////////////////////////////////////// 8025b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com 8035b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com /** 8042fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com * This sets the view matrix to identity and adjusts stage matrices to compensate. The 8052fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com * destructor undoes the changes, restoring the view matrix that was set before the 8062fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com * constructor. It is similar to passing the inverse of the current view matrix to 8072fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com * AutoViewMatrixRestore, but lazily computes the inverse only if necessary. 8085b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com */ 8095b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com class AutoDeviceCoordDraw : ::GrNoncopyable { 8105b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com public: 8112fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com AutoDeviceCoordDraw() : fDrawState(NULL) {} 8125b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com /** 8132fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com * If a stage's texture matrix is applied to explicit per-vertex coords, rather than to 8142fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com * positions, then we don't want to modify its matrix. The explicitCoordStageMask is used 8152fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com * to specify such stages. 8165b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com */ 817c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com AutoDeviceCoordDraw(GrDrawState* drawState) { 8182fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com fDrawState = NULL; 819c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com this->set(drawState); 8202fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com } 8212fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 822a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com ~AutoDeviceCoordDraw() { this->restore(); } 823a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com 824c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com bool set(GrDrawState* drawState); 8252fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 826a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com /** 827a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com * Returns true if this object was successfully initialized on to a GrDrawState. It may 828a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com * return false because a non-default constructor or set() were never called or because 829a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com * the view matrix was not invertible. 830a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com */ 8315b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com bool succeeded() const { return NULL != fDrawState; } 8322fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 833a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com /** 834a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com * Returns the matrix that was set previously set on the drawState. This is only valid 835a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com * if succeeded returns true. 836a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com */ 837b9086a026844e4cfd08b219e49ce3f12294cba98bsalomon@google.com const SkMatrix& getOriginalMatrix() const { 838a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com GrAssert(this->succeeded()); 839a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com return fViewMatrix; 840a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com } 8412fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 842a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com /** 843a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com * Can be called prior to destructor to restore the original matrix. 844a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com */ 845a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com void restore(); 8462fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 8475b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com private: 848288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com GrDrawState* fDrawState; 849b9086a026844e4cfd08b219e49ce3f12294cba98bsalomon@google.com SkMatrix fViewMatrix; 85008283afc265f1153834256fc1012519813ba6b73bsalomon@google.com GrEffectStage::SavedCoordChange fSavedCoordChanges[GrDrawState::kNumStages]; 851288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com uint32_t fRestoreMask; 8525b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com }; 8535b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com 8548f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 8558f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 8568f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 8578f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name Render Target 8588f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 8598f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 8608f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 861ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com * Sets the render-target used at the next drawing call 8628f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 8638f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param target The render target to set. 8648f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 865d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com void setRenderTarget(GrRenderTarget* target) { 866ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fRenderTarget.reset(SkSafeRef(target)); 8679ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com } 8688f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 8698f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 870ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com * Retrieves the currently set render-target. 8718f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 8728f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @return The currently set render target. 8738f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 874ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com const GrRenderTarget* getRenderTarget() const { return fRenderTarget.get(); } 875ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrRenderTarget* getRenderTarget() { return fRenderTarget.get(); } 8768f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 8778f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com class AutoRenderTargetRestore : public ::GrNoncopyable { 8788f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com public: 879cadbcb8e536f89babb4e165bfdca18384e97d582bsalomon@google.com AutoRenderTargetRestore() : fDrawState(NULL), fSavedTarget(NULL) {} 8808f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com AutoRenderTargetRestore(GrDrawState* ds, GrRenderTarget* newTarget) { 8818f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fDrawState = NULL; 8827460b378d68217167013ca889a4cdcae742908e7robertphillips@google.com fSavedTarget = NULL; 8838f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com this->set(ds, newTarget); 8848f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 8859ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com ~AutoRenderTargetRestore() { this->restore(); } 8869ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com 8879ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com void restore() { 8888f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com if (NULL != fDrawState) { 8898f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fDrawState->setRenderTarget(fSavedTarget); 8909ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com fDrawState = NULL; 8918f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 8929ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com GrSafeSetNull(fSavedTarget); 8939ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com } 8949ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com 8959ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com void set(GrDrawState* ds, GrRenderTarget* newTarget) { 8969ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com this->restore(); 8979ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com 8988f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com if (NULL != ds) { 8999ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com GrAssert(NULL == fSavedTarget); 9008f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fSavedTarget = ds->getRenderTarget(); 9019ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com SkSafeRef(fSavedTarget); 9028f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com ds->setRenderTarget(newTarget); 9039ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com fDrawState = ds; 9048f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 9058f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 9068f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com private: 9078f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrDrawState* fDrawState; 9088f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrRenderTarget* fSavedTarget; 9098f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com }; 9108f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 9118f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 9128f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 9138f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 9148f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name Stencil 9158f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 9168f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 9178f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 9188f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Sets the stencil settings to use for the next draw. 9198f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Changing the clip has the side-effect of possibly zeroing 9208f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * out the client settable stencil bits. So multipass algorithms 9218f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * using stencil should not change the clip between passes. 9228f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param settings the stencil settings to use. 9238f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 9248f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void setStencil(const GrStencilSettings& settings) { 925ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fStencilSettings = settings; 9268f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 9278f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 9288f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 9298f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Shortcut to disable stencil testing and ops. 9308f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 9318f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void disableStencil() { 932ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fStencilSettings.setDisabled(); 9338f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 9348f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 935ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com const GrStencilSettings& getStencil() const { return fCommon.fStencilSettings; } 9368f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 937ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrStencilSettings* stencil() { return &fCommon.fStencilSettings; } 9388f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 9398f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 9408f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 9418f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 9428f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name State Flags 9438f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 9448f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 9458f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 9468f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Flags that affect rendering. Controlled using enable/disableState(). All 9478f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * default to disabled. 9488f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 9498f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com enum StateBits { 9508f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 9518f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Perform dithering. TODO: Re-evaluate whether we need this bit 9528f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 9538f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kDither_StateBit = 0x01, 9548f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 955cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com * Perform HW anti-aliasing. This means either HW FSAA, if supported by the render target, 956cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com * or smooth-line rendering if a line primitive is drawn and line smoothing is supported by 957cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com * the 3D API. 9588f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 9598f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kHWAntialias_StateBit = 0x02, 9608f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 9618f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Draws will respect the clip, otherwise the clip is ignored. 9628f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 9638f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kClip_StateBit = 0x04, 9648f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 9658f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Disables writing to the color buffer. Useful when performing stencil 9668f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * operations. 9678f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 9688f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kNoColorWrites_StateBit = 0x08, 9690342a85091fd430c90a142d155dc9642aa729d9ebsalomon@google.com 970cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com /** 971cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com * Usually coverage is applied after color blending. The color is blended using the coeffs 972cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com * specified by setBlendFunc(). The blended color is then combined with dst using coeffs 973cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com * of src_coverage, 1-src_coverage. Sometimes we are explicitly drawing a coverage mask. In 974cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com * this case there is no distinction between coverage and color and the caller needs direct 975cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com * control over the blend coeffs. When set, there will be a single blend step controlled by 976cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com * setBlendFunc() which will use coverage*color as the src color. 977cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com */ 978cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com kCoverageDrawing_StateBit = 0x10, 979cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com 9808f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com // Users of the class may add additional bits to the vector 9818f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kDummyStateBit, 9828f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kLastPublicStateBit = kDummyStateBit-1, 9838f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com }; 9848f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 9858f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void resetStateFlags() { 986ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fFlagBits = 0; 9870fec61d19ca9088d54f58bd0a67150171b83d66cbsalomon@google.com } 9880fec61d19ca9088d54f58bd0a67150171b83d66cbsalomon@google.com 9898f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 9908f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Enable render state settings. 9918f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 9921e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com * @param stateBits bitfield of StateBits specifying the states to enable 9938f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 9948f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void enableState(uint32_t stateBits) { 995ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fFlagBits |= stateBits; 9968f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 9970fec61d19ca9088d54f58bd0a67150171b83d66cbsalomon@google.com 9988f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 9998f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Disable render state settings. 10008f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 10011e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com * @param stateBits bitfield of StateBits specifying the states to disable 10028f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 10038f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void disableState(uint32_t stateBits) { 1004ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fFlagBits &= ~(stateBits); 10058f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 10060fec61d19ca9088d54f58bd0a67150171b83d66cbsalomon@google.com 1007d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com /** 1008d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com * Enable or disable stateBits based on a boolean. 1009d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com * 10101e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com * @param stateBits bitfield of StateBits to enable or disable 1011d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com * @param enable if true enable stateBits, otherwise disable 1012d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com */ 1013d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com void setState(uint32_t stateBits, bool enable) { 1014d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com if (enable) { 1015d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com this->enableState(stateBits); 1016d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com } else { 1017d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com this->disableState(stateBits); 1018d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com } 1019d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com } 1020d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com 10218f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com bool isDitherState() const { 1022ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com return 0 != (fCommon.fFlagBits & kDither_StateBit); 10238f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 10240fec61d19ca9088d54f58bd0a67150171b83d66cbsalomon@google.com 10258f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com bool isHWAntialiasState() const { 1026ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com return 0 != (fCommon.fFlagBits & kHWAntialias_StateBit); 10278f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 10280fec61d19ca9088d54f58bd0a67150171b83d66cbsalomon@google.com 10298f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com bool isClipState() const { 1030ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com return 0 != (fCommon.fFlagBits & kClip_StateBit); 10318f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 10320fec61d19ca9088d54f58bd0a67150171b83d66cbsalomon@google.com 10338f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com bool isColorWriteDisabled() const { 1034ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com return 0 != (fCommon.fFlagBits & kNoColorWrites_StateBit); 10358f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 10368f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 1037cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com bool isCoverageDrawing() const { 1038ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com return 0 != (fCommon.fFlagBits & kCoverageDrawing_StateBit); 1039cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com } 1040cf939ae54842fc7408ee68a41427086962b4c3dcbsalomon@google.com 10418f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com bool isStateFlagEnabled(uint32_t stateBit) const { 1042ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com return 0 != (stateBit & fCommon.fFlagBits); 10438f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 10448f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 10458f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 10468f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 10478f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 10488f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name Face Culling 10498f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 10508f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 10518f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com enum DrawFace { 1052978c8c61ba1e792567e9d8e6629c2c4ee59727b7bsalomon@google.com kInvalid_DrawFace = -1, 1053978c8c61ba1e792567e9d8e6629c2c4ee59727b7bsalomon@google.com 10548f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kBoth_DrawFace, 10558f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kCCW_DrawFace, 10568f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kCW_DrawFace, 10578f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com }; 10588f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 10598f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 10608f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Controls whether clockwise, counterclockwise, or both faces are drawn. 10618f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param face the face(s) to draw. 10628f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 10638f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void setDrawFace(DrawFace face) { 1064978c8c61ba1e792567e9d8e6629c2c4ee59727b7bsalomon@google.com GrAssert(kInvalid_DrawFace != face); 1065ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon.fDrawFace = face; 10668f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 10678f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 10688f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 10698f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Gets whether the target is drawing clockwise, counterclockwise, 10708f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * or both faces. 10718f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @return the current draw face(s). 10728f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 1073ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com DrawFace getDrawFace() const { return fCommon.fDrawFace; } 1074d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 10758f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 10768f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 10778f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 107862b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com 1079f13f58804659175925042a291304d483a4fd9278tomhudson@google.com bool isStageEnabled(int s) const { 1080f13f58804659175925042a291304d483a4fd9278tomhudson@google.com GrAssert((unsigned)s < kNumStages); 108108283afc265f1153834256fc1012519813ba6b73bsalomon@google.com return (NULL != fStages[s].getEffect()); 1082f13f58804659175925042a291304d483a4fd9278tomhudson@google.com } 1083f13f58804659175925042a291304d483a4fd9278tomhudson@google.com 10849381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com bool operator ==(const GrDrawState& s) const { 1085ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com if (fRenderTarget.get() != s.fRenderTarget.get() || fCommon != s.fCommon) { 10868fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com return false; 10878fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } 1088ff6ea2663f76aa85ec55ddd0f00ca7906f1bc4e3commit-bot@chromium.org if (fVertexAttribs != s.fVertexAttribs) { 10899b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com return false; 10909b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com } 10919b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com for (int i = 0; i < kAttribIndexCount; ++i) { 1092c78188896e28a4ae49e406a7422b345ae177dafebsalomon@google.com if ((i == kPosition_AttribIndex || s.fCommon.fAttribBindings & (1 << i)) && 10939b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com fAttribIndices[i] != s.fAttribIndices[i]) { 10949b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com return false; 10959b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com } 10969b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com } 109762b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com for (int i = 0; i < kNumStages; i++) { 1098f2f8fc37265a6ef06897117451a3a9238287c13bbsalomon@google.com bool enabled = this->isStageEnabled(i); 1099f2f8fc37265a6ef06897117451a3a9238287c13bbsalomon@google.com if (enabled != s.isStageEnabled(i)) { 1100f2f8fc37265a6ef06897117451a3a9238287c13bbsalomon@google.com return false; 1101f2f8fc37265a6ef06897117451a3a9238287c13bbsalomon@google.com } 110208283afc265f1153834256fc1012519813ba6b73bsalomon@google.com if (enabled && this->fStages[i] != s.fStages[i]) { 110362b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com return false; 110462b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com } 110562b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com } 110662b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com return true; 11079381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com } 11089381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com bool operator !=(const GrDrawState& s) const { return !(*this == s); } 110962b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com 1110ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrDrawState& operator= (const GrDrawState& s) { 1111ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com this->setRenderTarget(s.fRenderTarget.get()); 1112ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon = s.fCommon; 11139b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com fVertexAttribs = s.fVertexAttribs; 11149b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com for (int i = 0; i < kAttribIndexCount; i++) { 11159b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com fAttribIndices[i] = s.fAttribIndices[i]; 11169b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com } 111762b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com for (int i = 0; i < kNumStages; i++) { 1118e742bf0ab19659145325ac894f7e0b78c8efbd89tomhudson@google.com if (s.isStageEnabled(i)) { 111908283afc265f1153834256fc1012519813ba6b73bsalomon@google.com this->fStages[i] = s.fStages[i]; 112062b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com } 112162b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com } 112262b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com return *this; 112362b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com } 112462b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com 112562b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.comprivate: 11262e3d144dfdbc4596d33baef7396316f88f412cc8bsalomon@google.com 1127ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com /** Fields that are identical in GrDrawState and GrDrawState::DeferredState. */ 1128ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com struct CommonState { 1129ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com // These fields are roughly sorted by decreasing likelihood of being different in op== 1130ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrColor fColor; 11319b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com GrAttribBindings fAttribBindings; 1132ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com SkMatrix fViewMatrix; 1133ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrBlendCoeff fSrcBlend; 1134ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrBlendCoeff fDstBlend; 1135ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrColor fBlendConstant; 1136ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com uint32_t fFlagBits; 1137ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrStencilSettings fStencilSettings; 1138ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com int fFirstCoverageStage; 1139ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrColor fCoverage; 1140ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com SkXfermode::Mode fColorFilterMode; 1141ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrColor fColorFilterColor; 1142ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com DrawFace fDrawFace; 1143ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com bool operator== (const CommonState& other) const { 1144ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com return fColor == other.fColor && 11459b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com fAttribBindings == other.fAttribBindings && 1146ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fViewMatrix.cheapEqualTo(other.fViewMatrix) && 1147ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fSrcBlend == other.fSrcBlend && 1148ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fDstBlend == other.fDstBlend && 1149ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fBlendConstant == other.fBlendConstant && 1150ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fFlagBits == other.fFlagBits && 1151ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fStencilSettings == other.fStencilSettings && 1152ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fFirstCoverageStage == other.fFirstCoverageStage && 1153ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCoverage == other.fCoverage && 1154ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fColorFilterMode == other.fColorFilterMode && 1155ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fColorFilterColor == other.fColorFilterColor && 1156ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fDrawFace == other.fDrawFace; 1157ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com } 1158ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com bool operator!= (const CommonState& other) const { return !(*this == other); } 1159ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com }; 1160ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com 1161ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com /** GrDrawState uses GrEffectStages to hold stage state which holds a ref on GrEffectRef. 1162ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com DeferredState must directly reference GrEffects, however. */ 1163ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com struct SavedEffectStage { 1164ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com SavedEffectStage() : fEffect(NULL) {} 1165ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com const GrEffect* fEffect; 1166ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrEffectStage::SavedCoordChange fCoordChange; 1167ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com }; 1168ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com 1169ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.compublic: 1170ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com /** 1171ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com * DeferredState contains all of the data of a GrDrawState but does not hold refs on GrResource 1172ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com * objects. Resources are allowed to hit zero ref count while in DeferredStates. Their internal 1173ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com * dispose mechanism returns them to the cache. This allows recycling resources through the 1174ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com * the cache while they are in a deferred draw queue. 1175ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com */ 1176ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com class DeferredState { 1177ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com public: 1178ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com DeferredState() : fRenderTarget(NULL) { 1179ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GR_DEBUGCODE(fInitialized = false;) 1180ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com } 1181ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com // TODO: Remove this when DeferredState no longer holds a ref to the RT 1182ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com ~DeferredState() { SkSafeUnref(fRenderTarget); } 1183ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com 1184ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com void saveFrom(const GrDrawState& drawState) { 1185ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fCommon = drawState.fCommon; 1186ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com // TODO: Here we will copy the GrRenderTarget pointer without taking a ref. 1187ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fRenderTarget = drawState.fRenderTarget.get(); 1188ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com SkSafeRef(fRenderTarget); 11899b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com fVertexAttribs = drawState.fVertexAttribs; 11909b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com for (int i = 0; i < kAttribIndexCount; i++) { 11919b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com fAttribIndices[i] = drawState.fAttribIndices[i]; 11929b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com } 1193ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com // Here we ref the effects directly rather than the effect-refs. TODO: When the effect- 1194ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com // ref gets fully unref'ed it will cause the underlying effect to unref its resources 1195ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com // and recycle them to the cache (if no one else is holding a ref to the resources). 1196ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com for (int i = 0; i < kNumStages; ++i) { 1197ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fStages[i].saveFrom(drawState.fStages[i]); 1198ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com } 1199ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GR_DEBUGCODE(fInitialized = true;) 1200ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com } 1201ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com 1202ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com void restoreTo(GrDrawState* drawState) { 1203ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GrAssert(fInitialized); 1204ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com drawState->fCommon = fCommon; 1205ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com drawState->setRenderTarget(fRenderTarget); 12069b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com drawState->fVertexAttribs = fVertexAttribs; 12079b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com for (int i = 0; i < kAttribIndexCount; i++) { 12089b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com drawState->fAttribIndices[i] = fAttribIndices[i]; 12099b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com } 1210ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com for (int i = 0; i < kNumStages; ++i) { 1211ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com fStages[i].restoreTo(&drawState->fStages[i]); 1212ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com } 1213ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com } 1214ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com 1215ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com bool isEqual(const GrDrawState& state) const { 1216ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com if (fRenderTarget != state.fRenderTarget.get() || fCommon != state.fCommon) { 1217ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com return false; 1218ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com } 12199b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com for (int i = 0; i < kAttribIndexCount; ++i) { 1220f140f18878215d6b4f21a94485cd1d2dbce8e976skia.committer@gmail.com if ((i == kPosition_AttribIndex || 12219b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com state.fCommon.fAttribBindings & kAttribIndexMasks[i]) && 12229b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com fAttribIndices[i] != state.fAttribIndices[i]) { 12239b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com return false; 12249b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com } 12259b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com } 1226ff6ea2663f76aa85ec55ddd0f00ca7906f1bc4e3commit-bot@chromium.org if (fVertexAttribs != state.fVertexAttribs) { 12279b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com return false; 12289b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com } 1229ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com for (int i = 0; i < kNumStages; ++i) { 1230dcd69bfca1d8e85ef5abc4e54f1e4b820d38e428bsalomon@google.com if (!fStages[i].isEqual(state.fStages[i])) { 1231ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com return false; 1232ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com } 1233ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com } 1234ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com return true; 1235ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com } 1236ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com 1237ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com private: 12389b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com GrRenderTarget* fRenderTarget; 12399b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com CommonState fCommon; 12409b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com int fAttribIndices[kAttribIndexCount]; 12419b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com GrVertexAttribArray<kVertexAttribCnt> fVertexAttribs; 12429b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com GrEffectStage::DeferredStage fStages[kNumStages]; 1243ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com 1244ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com GR_DEBUGCODE(bool fInitialized;) 1245ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com }; 1246ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.com 1247ca43208e4aaac817fbc8265542f995f24a3fb7bfbsalomon@google.comprivate: 12489b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com // helper array to let us check the current bindings so we know what bound attrib indices 12499b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com // we care about 12509b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com static const GrAttribBindings kAttribIndexMasks[kAttribIndexCount]; 12519b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com 12529b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com SkAutoTUnref<GrRenderTarget> fRenderTarget; 12539b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com CommonState fCommon; 12549b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com int fAttribIndices[kAttribIndexCount]; 12559b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com GrVertexAttribArray<kVertexAttribCnt> fVertexAttribs; 12569b855c7c95ce9fff7a447e4a6bdf8a469c1f3097jvanverth@google.com GrEffectStage fStages[kNumStages]; 12578f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 1258fa35e3ddcc9d130ce87c927218bdf27879c38711reed@google.com typedef GrRefCnt INHERITED; 12599381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com}; 12609381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com 12612b446734cfa8201e5478648988de86b646cb9544bsalomon@google.comGR_MAKE_BITFIELD_OPS(GrDrawState::BlendOptFlags); 12622b446734cfa8201e5478648988de86b646cb9544bsalomon@google.com 12639381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com#endif 1264