GrDrawState.h revision f271cc7183fe48ac64d2d9a454eb013c91b42d53
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 119381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com#include "GrColor.h" 129381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com#include "GrMatrix.h" 132e3d144dfdbc4596d33baef7396316f88f412cc8bsalomon@google.com#include "GrRefCnt.h" 149381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com#include "GrSamplerState.h" 159381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com#include "GrStencil.h" 1664aef2bacd1f5c25ffd9347aabd6265c9b60c0f4bsalomon@google.com#include "GrTexture.h" 179ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com#include "GrRenderTarget.h" 181e8f016305805d4d8cad74aba3a21b78486f9d6ftomhudson@google.com#include "effects/GrSingleTextureEffect.h" 199381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com 209381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com#include "SkXfermode.h" 219381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com 22af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.comclass GrPaint; 239381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com 242e3d144dfdbc4596d33baef7396316f88f412cc8bsalomon@google.comclass GrDrawState : public GrRefCnt { 252e3d144dfdbc4596d33baef7396316f88f412cc8bsalomon@google.compublic: 26fa35e3ddcc9d130ce87c927218bdf27879c38711reed@google.com SK_DECLARE_INST_COUNT(GrDrawState) 27d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 289381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com /** 299381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * Number of texture stages. Each stage takes as input a color and 309381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * 2D texture coordinates. The color input to the first enabled stage is the 319381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * per-vertex color or the constant color (setColor/setAlpha) if there are 329381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * no per-vertex colors. For subsequent stages the input color is the output 339381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * color from the previous enabled stage. The output color of each stage is 349381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * the input color modulated with the result of a texture lookup. Texture 359381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * lookups are specified by a texture a sampler (setSamplerState). Texture 369381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * coordinates for each stage come from the vertices based on a 379381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * GrVertexLayout bitfield. The output fragment color is the output color of 389381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * the last enabled stage. The presence or absence of texture coordinates 399381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * for each stage in the vertex layout indicates whether a stage is enabled 409381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * or not. 41bf5cad4e9c5808493b35cb9b0000a2d36b7f9b78robertphillips@google.com * 42bf5cad4e9c5808493b35cb9b0000a2d36b7f9b78robertphillips@google.com * Stages 0 through GrPaint::kTotalStages-1 are reserved for setting up 43d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * the draw (i.e., textures and filter masks). Stages GrPaint::kTotalStages 44dfdb7e5240276493077b7c6e1f3cc8b8a0e195babsalomon@google.com * through kNumStages-2 are earmarked for use by GrTextContext and 45dfdb7e5240276493077b7c6e1f3cc8b8a0e195babsalomon@google.com * GrPathRenderer-derived classes. kNumStages-1 is earmarked for clipping 46dfdb7e5240276493077b7c6e1f3cc8b8a0e195babsalomon@google.com * by GrClipMaskManager. 479381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com */ 489381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com enum { 49580711694654b8edc70028d09c4211445b661466twiz@google.com kNumStages = 5, 509381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com kMaxTexCoords = kNumStages 519381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com }; 529381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com 53d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com GrDrawState() 549ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com : fRenderTarget(NULL) { 559ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com 5652a5dcb43b5acbde377f664807b0f75af8bb1666bsalomon@google.com this->reset(); 5752a5dcb43b5acbde377f664807b0f75af8bb1666bsalomon@google.com } 5846f7afb9867200b568c21736da8a8bbb56b20e30bsalomon@google.com 59d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com GrDrawState(const GrDrawState& state) 609ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com : fRenderTarget(NULL) { 619ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com 6246f7afb9867200b568c21736da8a8bbb56b20e30bsalomon@google.com *this = state; 6346f7afb9867200b568c21736da8a8bbb56b20e30bsalomon@google.com } 6446f7afb9867200b568c21736da8a8bbb56b20e30bsalomon@google.com 659ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com virtual ~GrDrawState() { 667d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com this->disableStages(); 679ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com GrSafeSetNull(fRenderTarget); 689ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com } 699ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com 7052a5dcb43b5acbde377f664807b0f75af8bb1666bsalomon@google.com /** 717d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com * Resets to the default state. 726f261bed0252e3f3caa595798364e0bf12a2573absalomon@google.com * Sampler states *will* be modified: textures or GrEffect objects will be released. 73d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com */ 7452a5dcb43b5acbde377f664807b0f75af8bb1666bsalomon@google.com void reset() { 759ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com 767d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com this->disableStages(); 7752a5dcb43b5acbde377f664807b0f75af8bb1666bsalomon@google.com 7852a5dcb43b5acbde377f664807b0f75af8bb1666bsalomon@google.com fColor = 0xffffffff; 79861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fViewMatrix.reset(); 80861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com GrSafeSetNull(fRenderTarget); 8147059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com fSrcBlend = kOne_GrBlendCoeff; 8247059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com fDstBlend = kZero_GrBlendCoeff; 83861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fBlendConstant = 0x0; 84861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fFlagBits = 0x0; 85861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fVertexEdgeType = kHairLine_EdgeType; 86861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fStencilSettings.setDisabled(); 87861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fFirstCoverageStage = kNumStages; 88861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fCoverage = 0xffffffff; 89861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fColorFilterMode = SkXfermode::kDst_Mode; 90861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fColorFilterColor = 0x0; 91861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fDrawFace = kBoth_DrawFace; 92af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.com } 93af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.com 94af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.com /** 95af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.com * Initializes the GrDrawState based on a GrPaint. Note that GrDrawState 961e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com * encompasses more than GrPaint. Aspects of GrDrawState that have no 97af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.com * GrPaint equivalents are not modified. GrPaint has fewer stages than 98af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.com * GrDrawState. The extra GrDrawState stages are disabled. 99af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.com */ 100af84e748cedbf43e2d0e8d2eac9b7800c8d8ca19bsalomon@google.com void setFromPaint(const GrPaint& paint); 1018f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 1028f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 1038f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name Color 1048f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 1058f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 1068f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 1078f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Sets color for next draw to a premultiplied-alpha color. 1088f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 1098f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param color the color to set. 1108f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 1118f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void setColor(GrColor color) { fColor = color; } 1128f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 1138f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrColor getColor() const { return fColor; } 1148f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 1158f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 1168f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Sets the color to be used for the next draw to be 1178f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * (r,g,b,a) = (alpha, alpha, alpha, alpha). 1188f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 1198f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param alpha The alpha value to set as the color. 1208f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 1218f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void setAlpha(uint8_t a) { 1228f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com this->setColor((a << 24) | (a << 16) | (a << 8) | a); 1238f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 1248f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 1258f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 1268f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Add a color filter that can be represented by a color and a mode. Applied 1278f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * after color-computing texture stages. 1288f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 1298f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void setColorFilter(GrColor c, SkXfermode::Mode mode) { 1308f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fColorFilterColor = c; 1318f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fColorFilterMode = mode; 1328f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 1338f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 1348f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrColor getColorFilterColor() const { return fColorFilterColor; } 1358f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com SkXfermode::Mode getColorFilterMode() const { return fColorFilterMode; } 1368f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 1375b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com /** 1385b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com * Constructor sets the color to be 'color' which is undone by the destructor. 1395b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com */ 1405b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com class AutoColorRestore : public ::GrNoncopyable { 1415b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com public: 1425b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com AutoColorRestore(GrDrawState* drawState, GrColor color) { 1435b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com fDrawState = drawState; 1445b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com fOldColor = fDrawState->getColor(); 1455b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com fDrawState->setColor(color); 1465b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com } 1475b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com ~AutoColorRestore() { 1485b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com fDrawState->setColor(fOldColor); 1495b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com } 1505b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com private: 1515b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com GrDrawState* fDrawState; 1525b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com GrColor fOldColor; 1535b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com }; 1545b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com 1558f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 1568f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 1578f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 1582401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com /// @name Coverage 1592401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com //// 1602401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com 1612401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com /** 162d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * Sets a constant fractional coverage to be applied to the draw. The 1632401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com * initial value (after construction or reset()) is 0xff. The constant 1642401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com * coverage is ignored when per-vertex coverage is provided. 1652401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com */ 1662401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com void setCoverage(uint8_t coverage) { 1672401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com fCoverage = GrColorPackRGBA(coverage, coverage, coverage, coverage); 1682401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com } 1692401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com 1702401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com /** 1712401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com * Version of above that specifies 4 channel per-vertex color. The value 1722401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com * should be premultiplied. 1732401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com */ 1742401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com void setCoverage4(GrColor coverage) { 1752401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com fCoverage = coverage; 1762401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com } 1772401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com 1782401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com GrColor getCoverage() const { 1792401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com return fCoverage; 1802401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com } 1812401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com 1822401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com /// @} 1832401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com 1842401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 1858f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name Textures 1868f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 1878f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 1888f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 1891e8f016305805d4d8cad74aba3a21b78486f9d6ftomhudson@google.com * Creates a GrSingleTextureEffect. 1901e8f016305805d4d8cad74aba3a21b78486f9d6ftomhudson@google.com */ 1911e8f016305805d4d8cad74aba3a21b78486f9d6ftomhudson@google.com void createTextureEffect(int stage, GrTexture* texture) { 1926f261bed0252e3f3caa595798364e0bf12a2573absalomon@google.com GrAssert(!this->getSampler(stage).getEffect()); 1936f261bed0252e3f3caa595798364e0bf12a2573absalomon@google.com this->sampler(stage)->setEffect( 1941e8f016305805d4d8cad74aba3a21b78486f9d6ftomhudson@google.com SkNEW_ARGS(GrSingleTextureEffect, (texture)))->unref(); 1951e8f016305805d4d8cad74aba3a21b78486f9d6ftomhudson@google.com } 196dfdb7e5240276493077b7c6e1f3cc8b8a0e195babsalomon@google.com void createTextureEffect(int stage, GrTexture* texture, const GrMatrix& matrix) { 1976f261bed0252e3f3caa595798364e0bf12a2573absalomon@google.com GrAssert(!this->getSampler(stage).getEffect()); 198f271cc7183fe48ac64d2d9a454eb013c91b42d53bsalomon@google.com GrEffect* effect = SkNEW_ARGS(GrSingleTextureEffect, (texture)); 199f271cc7183fe48ac64d2d9a454eb013c91b42d53bsalomon@google.com this->sampler(stage)->setEffect(effect, matrix)->unref(); 200dfdb7e5240276493077b7c6e1f3cc8b8a0e195babsalomon@google.com } 201dfdb7e5240276493077b7c6e1f3cc8b8a0e195babsalomon@google.com void createTextureEffect(int stage, GrTexture* texture, 202dfdb7e5240276493077b7c6e1f3cc8b8a0e195babsalomon@google.com const GrMatrix& matrix, 203dfdb7e5240276493077b7c6e1f3cc8b8a0e195babsalomon@google.com const GrTextureParams& params) { 2046f261bed0252e3f3caa595798364e0bf12a2573absalomon@google.com GrAssert(!this->getSampler(stage).getEffect()); 205f271cc7183fe48ac64d2d9a454eb013c91b42d53bsalomon@google.com GrEffect* effect = SkNEW_ARGS(GrSingleTextureEffect, (texture, params)); 206f271cc7183fe48ac64d2d9a454eb013c91b42d53bsalomon@google.com this->sampler(stage)->setEffect(effect, matrix)->unref(); 2071ce49fc91714ce8974d11246d29ebe7b97b5fe98bsalomon@google.com } 2081ce49fc91714ce8974d11246d29ebe7b97b5fe98bsalomon@google.com 2091e8f016305805d4d8cad74aba3a21b78486f9d6ftomhudson@google.com 2107d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com bool stagesDisabled() { 2117d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com for (int i = 0; i < kNumStages; ++i) { 2126f261bed0252e3f3caa595798364e0bf12a2573absalomon@google.com if (NULL != fSamplerStates[i].getEffect()) { 2137d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com return false; 2147d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com } 2157d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com } 2163eee8fbe0f280bc1dea59dc0b0ebd8021b51137ftomhudson@google.com return true; 2177d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com } 218676e66096c60615bac52f365111596de5c4ca8a6tomhudson@google.com 219676e66096c60615bac52f365111596de5c4ca8a6tomhudson@google.com void disableStage(int index) { 2206f261bed0252e3f3caa595798364e0bf12a2573absalomon@google.com fSamplerStates[index].setEffect(NULL); 221676e66096c60615bac52f365111596de5c4ca8a6tomhudson@google.com } 222676e66096c60615bac52f365111596de5c4ca8a6tomhudson@google.com 223972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com /** 224f271cc7183fe48ac64d2d9a454eb013c91b42d53bsalomon@google.com * Release all the GrEffects referred to by this draw state. 225972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com */ 2267d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com void disableStages() { 227972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com for (int i = 0; i < kNumStages; ++i) { 228676e66096c60615bac52f365111596de5c4ca8a6tomhudson@google.com this->disableStage(i); 229972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com } 230972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com } 231972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com 2327d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com class AutoStageDisable : public ::GrNoncopyable { 233972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com public: 2347d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com AutoStageDisable(GrDrawState* ds) : fDrawState(ds) {} 2357d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com ~AutoStageDisable() { 236972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com if (NULL != fDrawState) { 2377d6afdd795eb4c7ce8f5a327117cfdba5f957ddbtomhudson@google.com fDrawState->disableStages(); 238972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com } 239972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com } 240972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com private: 241972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com GrDrawState* fDrawState; 242972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com }; 243972265db219ce25b5159879c75e6c62efaf0fa79robertphillips@google.com 2448f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 2458f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 2468f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 2478f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name Samplers 2488f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 2498f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 2508f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 2518f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Returns the current sampler for a stage. 2528f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 2538f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com const GrSamplerState& getSampler(int stage) const { 2548f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrAssert((unsigned)stage < kNumStages); 2558f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com return fSamplerStates[stage]; 2568f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 2578f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 2588f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 2598f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Writable pointer to a stage's sampler. 2608f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 2618f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrSamplerState* sampler(int stage) { 2628f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrAssert((unsigned)stage < kNumStages); 2638f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com return fSamplerStates + stage; 2648f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 2658f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 2668f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 267288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com * Called when the source coord system is changing. preConcat gives the transformation from the 268288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com * old coord system to the new coord system. 2698f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 270288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com void preConcatSamplerMatrices(const GrMatrix& preConcat) { 2718f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com for (int i = 0; i < kNumStages; ++i) { 272e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com if (this->isStageEnabled(i)) { 273288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com fSamplerStates[i].preConcatCoordChange(preConcat); 2748f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 2758f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 2768f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 2778f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 278e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com /** 279288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com * Called when the source coord system is changing. preConcatInverse is the inverse of the 280288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com * transformation from the old coord system to the new coord system. Returns false if the matrix 281288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com * cannot be inverted. 282e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com */ 283288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com bool preConcatSamplerMatricesWithInverse(const GrMatrix& preConcatInverse) { 284e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com GrMatrix inv; 285e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com bool computed = false; 286e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com for (int i = 0; i < kNumStages; ++i) { 287e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com if (this->isStageEnabled(i)) { 288288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com if (!computed && !preConcatInverse.invert(&inv)) { 289e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com return false; 290e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com } else { 291e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com computed = true; 292e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com } 293288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com fSamplerStates[i].preConcatCoordChange(preConcatInverse); 294e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com } 295e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com } 296e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com return true; 297e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com } 298e3d3216fe17b6afb2e613271b5246a2766e12df6bsalomon@google.com 2998f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 3008f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 3018f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 3028f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name Coverage / Color Stages 3038f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 3048f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 3058f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 3068f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * A common pattern is to compute a color with the initial stages and then 3078f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * modulate that color by a coverage value in later stage(s) (AA, mask- 308d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * filters, glyph mask, etc). Color-filters, xfermodes, etc should be 309d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * computed based on the pre-coverage-modulated color. The division of 310d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * stages between color-computing and coverage-computing is specified by 3118f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * this method. Initially this is kNumStages (all stages 3128f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * are color-computing). 3138f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 3148f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void setFirstCoverageStage(int firstCoverageStage) { 3158f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrAssert((unsigned)firstCoverageStage <= kNumStages); 316d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com fFirstCoverageStage = firstCoverageStage; 3178f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 3188f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 3198f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 3208f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Gets the index of the first coverage-computing stage. 3218f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 3228f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com int getFirstCoverageStage() const { 323d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com return fFirstCoverageStage; 3248f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 3258f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 3268f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com ///@} 3278f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 3288f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 3298f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name Blending 3308f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 3318f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 3328f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 3331e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com * Sets the blending function coefficients. 3348f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 3358f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * The blend function will be: 3368f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * D' = sat(S*srcCoef + D*dstCoef) 3378f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 3388f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * where D is the existing destination color, S is the incoming source 3398f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * color, and D' is the new destination color that will be written. sat() 3408f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * is the saturation function. 3418f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 3421e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com * @param srcCoef coefficient applied to the src color. 3431e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com * @param dstCoef coefficient applied to the dst color. 3448f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 3458f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void setBlendFunc(GrBlendCoeff srcCoeff, GrBlendCoeff dstCoeff) { 3468f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fSrcBlend = srcCoeff; 3478f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fDstBlend = dstCoeff; 3488f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com #if GR_DEBUG 3498f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com switch (dstCoeff) { 35047059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com case kDC_GrBlendCoeff: 35147059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com case kIDC_GrBlendCoeff: 35247059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com case kDA_GrBlendCoeff: 35347059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com case kIDA_GrBlendCoeff: 3548f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrPrintf("Unexpected dst blend coeff. Won't work correctly with" 3558f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com "coverage stages.\n"); 3568f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com break; 3578f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com default: 3588f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com break; 3598f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 3608f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com switch (srcCoeff) { 36147059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com case kSC_GrBlendCoeff: 36247059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com case kISC_GrBlendCoeff: 36347059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com case kSA_GrBlendCoeff: 36447059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com case kISA_GrBlendCoeff: 3658f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrPrintf("Unexpected src blend coeff. Won't work correctly with" 3668f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com "coverage stages.\n"); 3678f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com break; 3688f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com default: 3698f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com break; 3708f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 3718f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com #endif 3728f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 3738f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 3748f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrBlendCoeff getSrcBlendCoeff() const { return fSrcBlend; } 3758f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrBlendCoeff getDstBlendCoeff() const { return fDstBlend; } 3768f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 3778f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void getDstBlendCoeff(GrBlendCoeff* srcBlendCoeff, 3788f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrBlendCoeff* dstBlendCoeff) const { 3798f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com *srcBlendCoeff = fSrcBlend; 3808f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com *dstBlendCoeff = fDstBlend; 3818f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 3828f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 3838f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 3848f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Sets the blending function constant referenced by the following blending 3851e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com * coefficients: 38647059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com * kConstC_GrBlendCoeff 38747059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com * kIConstC_GrBlendCoeff 38847059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com * kConstA_GrBlendCoeff 38947059542e7aa153926377456a6c611e55c8e428cbsalomon@google.com * kIConstA_GrBlendCoeff 3908f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 3918f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param constant the constant to set 3928f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 3938f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void setBlendConstant(GrColor constant) { fBlendConstant = constant; } 3948f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 3958f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 3968f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Retrieves the last value set by setBlendConstant() 3978f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @return the blending constant value 3988f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 3998f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrColor getBlendConstant() const { return fBlendConstant; } 4008f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 4018f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 4028f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 4038f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 4048f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name View Matrix 4058f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 4068f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 4078f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 408a72eef322c686954cdffa849dc26d8133b802f1drobertphillips@google.com * Sets the matrix applied to vertex positions. 4098f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 4108f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * In the post-view-matrix space the rectangle [0,w]x[0,h] 4118f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * fully covers the render target. (w and h are the width and height of the 4128f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * the rendertarget.) 4138f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 4148f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void setViewMatrix(const GrMatrix& m) { fViewMatrix = m; } 4158f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 4168f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 4178f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Gets a writable pointer to the view matrix. 4188f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 4198f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrMatrix* viewMatrix() { return &fViewMatrix; } 4208f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 4218f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 4228f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Multiplies the current view matrix by a matrix 4238f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 4248f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * After this call V' = V*m where V is the old view matrix, 4258f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * m is the parameter to this function, and V' is the new view matrix. 4268f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * (We consider positions to be column vectors so position vector p is 4278f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * transformed by matrix X as p' = X*p.) 4288f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 4298f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param m the matrix used to modify the view matrix. 4308f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 4318f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void preConcatViewMatrix(const GrMatrix& m) { fViewMatrix.preConcat(m); } 4328f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 4338f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 4348f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Multiplies the current view matrix by a matrix 4358f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 4368f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * After this call V' = m*V where V is the old view matrix, 4378f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * m is the parameter to this function, and V' is the new view matrix. 4388f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * (We consider positions to be column vectors so position vector p is 4398f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * transformed by matrix X as p' = X*p.) 4408f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 4418f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param m the matrix used to modify the view matrix. 4428f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 4438f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void postConcatViewMatrix(const GrMatrix& m) { fViewMatrix.postConcat(m); } 4448f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 4458f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 4468f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Retrieves the current view matrix 4478f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @return the current view matrix. 4488f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 4498f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com const GrMatrix& getViewMatrix() const { return fViewMatrix; } 4508f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 4518f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 4528f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Retrieves the inverse of the current view matrix. 4538f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 4548f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * If the current view matrix is invertible, return true, and if matrix 4558f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * is non-null, copy the inverse into it. If the current view matrix is 4568f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * non-invertible, return false and ignore the matrix parameter. 4578f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 4588f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param matrix if not null, will receive a copy of the current inverse. 4598f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 4608f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com bool getViewInverse(GrMatrix* matrix) const { 4618f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com // TODO: determine whether we really need to leave matrix unmodified 4628f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com // at call sites when inversion fails. 4638f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrMatrix inverse; 4648f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com if (fViewMatrix.invert(&inverse)) { 4658f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com if (matrix) { 4668f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com *matrix = inverse; 4678f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 4688f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com return true; 4698f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 4708f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com return false; 4718f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 4728f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 4735b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com //////////////////////////////////////////////////////////////////////////// 4745b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com 4755b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com /** 4762fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com * Preconcats the current view matrix and restores the previous view matrix in the destructor. 4772fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com * Stage matrices are automatically adjusted to compensate. 4785b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com */ 4798f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com class AutoViewMatrixRestore : public ::GrNoncopyable { 4808f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com public: 4818f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com AutoViewMatrixRestore() : fDrawState(NULL) {} 4822fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 4832fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com AutoViewMatrixRestore(GrDrawState* ds, 4842fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com const GrMatrix& preconcatMatrix, 4852fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com uint32_t explicitCoordStageMask = 0) { 4868f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fDrawState = NULL; 4872fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com this->set(ds, preconcatMatrix, explicitCoordStageMask); 4888f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 4892fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 4902fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com ~AutoViewMatrixRestore() { this->restore(); } 4912fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 492a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com /** 493a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com * Can be called prior to destructor to restore the original matrix. 494a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com */ 4952fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com void restore(); 496f467ce7bc33af5f496e0619387551aedec6d2517skia.committer@gmail.com 4972fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com void set(GrDrawState* drawState, 4982fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com const GrMatrix& preconcatMatrix, 4992fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com uint32_t explicitCoordStageMask = 0); 5002fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 501ded4f4b163f5aa19c22c871178c55ecb34623846bsalomon@google.com bool isSet() const { return NULL != fDrawState; } 5022fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 5038f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com private: 504288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com GrDrawState* fDrawState; 505288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com GrMatrix fViewMatrix; 506288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com GrSamplerState::SavedCoordChange fSavedCoordChanges[GrDrawState::kNumStages]; 507288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com uint32_t fRestoreMask; 5089381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com }; 5099381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com 5105b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com //////////////////////////////////////////////////////////////////////////// 5115b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com 5125b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com /** 5132fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com * This sets the view matrix to identity and adjusts stage matrices to compensate. The 5142fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com * destructor undoes the changes, restoring the view matrix that was set before the 5152fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com * constructor. It is similar to passing the inverse of the current view matrix to 5162fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com * AutoViewMatrixRestore, but lazily computes the inverse only if necessary. 5175b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com */ 5185b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com class AutoDeviceCoordDraw : ::GrNoncopyable { 5195b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com public: 5202fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com AutoDeviceCoordDraw() : fDrawState(NULL) {} 5215b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com /** 5222fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com * If a stage's texture matrix is applied to explicit per-vertex coords, rather than to 5232fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com * positions, then we don't want to modify its matrix. The explicitCoordStageMask is used 5242fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com * to specify such stages. 5255b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com */ 5265b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com AutoDeviceCoordDraw(GrDrawState* drawState, 5272fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com uint32_t explicitCoordStageMask = 0) { 5282fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com fDrawState = NULL; 5292fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com this->set(drawState, explicitCoordStageMask); 5302fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com } 5312fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 532a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com ~AutoDeviceCoordDraw() { this->restore(); } 533a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com 5342fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com bool set(GrDrawState* drawState, uint32_t explicitCoordStageMask = 0); 5352fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 536a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com /** 537a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com * Returns true if this object was successfully initialized on to a GrDrawState. It may 538a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com * return false because a non-default constructor or set() were never called or because 539a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com * the view matrix was not invertible. 540a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com */ 5415b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com bool succeeded() const { return NULL != fDrawState; } 5422fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 543a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com /** 544a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com * Returns the matrix that was set previously set on the drawState. This is only valid 545a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com * if succeeded returns true. 546a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com */ 547a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com const GrMatrix& getOriginalMatrix() const { 548a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com GrAssert(this->succeeded()); 549a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com return fViewMatrix; 550a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com } 5512fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 552a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com /** 553a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com * Can be called prior to destructor to restore the original matrix. 554a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com */ 555a834746cc1bd92301fd0840a221ca1623c0bbb29bsalomon@google.com void restore(); 5562fdcdeb86788206c23410109b3e2b7976747fd11bsalomon@google.com 5575b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com private: 558288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com GrDrawState* fDrawState; 559288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com GrMatrix fViewMatrix; 560288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com GrSamplerState::SavedCoordChange fSavedCoordChanges[GrDrawState::kNumStages]; 561288d9549b42a4eb934e814790f2b7a81f017a9c5bsalomon@google.com uint32_t fRestoreMask; 5625b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com }; 5635b3e890c376f2211218c43edd11939cfc78fd60absalomon@google.com 5648f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 5658f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 5668f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 5678f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name Render Target 5688f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 5698f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 5708f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 5718f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Sets the rendertarget used at the next drawing call 5728f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 5738f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param target The render target to set. 5748f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 575d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com void setRenderTarget(GrRenderTarget* target) { 5769ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com GrSafeAssign(fRenderTarget, target); 5779ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com } 5788f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 5798f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 5808f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Retrieves the currently set rendertarget. 5818f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 5828f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @return The currently set render target. 5838f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 5848f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com const GrRenderTarget* getRenderTarget() const { return fRenderTarget; } 5858f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrRenderTarget* getRenderTarget() { return fRenderTarget; } 5868f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 5878f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com class AutoRenderTargetRestore : public ::GrNoncopyable { 5888f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com public: 589cadbcb8e536f89babb4e165bfdca18384e97d582bsalomon@google.com AutoRenderTargetRestore() : fDrawState(NULL), fSavedTarget(NULL) {} 5908f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com AutoRenderTargetRestore(GrDrawState* ds, GrRenderTarget* newTarget) { 5918f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fDrawState = NULL; 5927460b378d68217167013ca889a4cdcae742908e7robertphillips@google.com fSavedTarget = NULL; 5938f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com this->set(ds, newTarget); 5948f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 5959ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com ~AutoRenderTargetRestore() { this->restore(); } 5969ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com 5979ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com void restore() { 5988f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com if (NULL != fDrawState) { 5998f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fDrawState->setRenderTarget(fSavedTarget); 6009ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com fDrawState = NULL; 6018f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 6029ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com GrSafeSetNull(fSavedTarget); 6039ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com } 6049ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com 6059ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com void set(GrDrawState* ds, GrRenderTarget* newTarget) { 6069ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com this->restore(); 6079ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com 6088f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com if (NULL != ds) { 6099ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com GrAssert(NULL == fSavedTarget); 6108f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fSavedTarget = ds->getRenderTarget(); 6119ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com SkSafeRef(fSavedTarget); 6128f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com ds->setRenderTarget(newTarget); 6139ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com fDrawState = ds; 6148f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 6158f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 6168f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com private: 6178f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrDrawState* fDrawState; 6188f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrRenderTarget* fSavedTarget; 6198f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com }; 6208f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 6218f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 6228f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 6238f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 6248f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name Stencil 6258f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 6268f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 6278f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 6288f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Sets the stencil settings to use for the next draw. 6298f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Changing the clip has the side-effect of possibly zeroing 6308f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * out the client settable stencil bits. So multipass algorithms 6318f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * using stencil should not change the clip between passes. 6328f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param settings the stencil settings to use. 6338f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 6348f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void setStencil(const GrStencilSettings& settings) { 6358f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fStencilSettings = settings; 6368f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 6378f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 6388f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 6398f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Shortcut to disable stencil testing and ops. 6408f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 6418f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void disableStencil() { 6428f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fStencilSettings.setDisabled(); 6438f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 6448f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 6458f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com const GrStencilSettings& getStencil() const { return fStencilSettings; } 6468f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 6478f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com GrStencilSettings* stencil() { return &fStencilSettings; } 6488f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 6498f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 6508f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 6518f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 6528f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com // @name Edge AA 6531e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com // Edge equations can be specified to perform anti-aliasing. Because the 6547ffe6810c6787f7a353ef3fe8fab3fc6440aae19bsalomon@google.com // edges are specified as per-vertex data, vertices that are shared by 6557ffe6810c6787f7a353ef3fe8fab3fc6440aae19bsalomon@google.com // multiple edges must be split. 6568f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com // 6578f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 6588f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 6598f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 6609381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * When specifying edges as vertex data this enum specifies what type of 6619381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * edges are in use. The edges are always 4 GrScalars in memory, even when 6629381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com * the edge type requires fewer than 4. 66393c9660cd158c5d0cab0ba4223e4257f699d5bb8bsalomon@google.com * 66493c9660cd158c5d0cab0ba4223e4257f699d5bb8bsalomon@google.com * TODO: Fix the fact that HairLine and Circle edge types use y-down coords. 66593c9660cd158c5d0cab0ba4223e4257f699d5bb8bsalomon@google.com * (either adjust in VS or use origin_upper_left in GLSL) 6669381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com */ 6679381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com enum VertexEdgeType { 6689381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com /* 1-pixel wide line 6699381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com 2D implicit line eq (a*x + b*y +c = 0). 4th component unused */ 6709381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com kHairLine_EdgeType, 671d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com /* Quadratic specified by u^2-v canonical coords (only 2 67269cc6ad20ed03f35f9d3c8119a2c32187669a22bbsalomon@google.com components used). Coverage based on signed distance with negative 67393c9660cd158c5d0cab0ba4223e4257f699d5bb8bsalomon@google.com being inside, positive outside. Edge specified in window space 67493c9660cd158c5d0cab0ba4223e4257f699d5bb8bsalomon@google.com (y-down) */ 67569cc6ad20ed03f35f9d3c8119a2c32187669a22bbsalomon@google.com kQuad_EdgeType, 67669cc6ad20ed03f35f9d3c8119a2c32187669a22bbsalomon@google.com /* Same as above but for hairline quadratics. Uses unsigned distance. 67769cc6ad20ed03f35f9d3c8119a2c32187669a22bbsalomon@google.com Coverage is min(0, 1-distance). */ 67869cc6ad20ed03f35f9d3c8119a2c32187669a22bbsalomon@google.com kHairQuad_EdgeType, 67993c9660cd158c5d0cab0ba4223e4257f699d5bb8bsalomon@google.com /* Circle specified as center_x, center_y, outer_radius, inner_radius 68093c9660cd158c5d0cab0ba4223e4257f699d5bb8bsalomon@google.com all in window space (y-down). */ 68193c9660cd158c5d0cab0ba4223e4257f699d5bb8bsalomon@google.com kCircle_EdgeType, 68269cc6ad20ed03f35f9d3c8119a2c32187669a22bbsalomon@google.com 68369cc6ad20ed03f35f9d3c8119a2c32187669a22bbsalomon@google.com kVertexEdgeTypeCnt 6849381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com }; 6859381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com 6869381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com /** 687d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com * Determines the interpretation per-vertex edge data when the 6888f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * kEdge_VertexLayoutBit is set (see GrDrawTarget). When per-vertex edges 6898f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * are not specified the value of this setting has no effect. 6908f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 6918f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void setVertexEdgeType(VertexEdgeType type) { 69269cc6ad20ed03f35f9d3c8119a2c32187669a22bbsalomon@google.com GrAssert(type >=0 && type < kVertexEdgeTypeCnt); 6938f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fVertexEdgeType = type; 6948f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 6958f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 69652a5dcb43b5acbde377f664807b0f75af8bb1666bsalomon@google.com VertexEdgeType getVertexEdgeType() const { return fVertexEdgeType; } 6978f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 6988f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 6998f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 7008f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 7018f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name State Flags 7028f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 7038f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 7048f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 7058f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Flags that affect rendering. Controlled using enable/disableState(). All 7068f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * default to disabled. 7078f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 7088f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com enum StateBits { 7098f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 7108f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Perform dithering. TODO: Re-evaluate whether we need this bit 7118f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 7128f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kDither_StateBit = 0x01, 7138f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 7148f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Perform HW anti-aliasing. This means either HW FSAA, if supported 7158f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * by the render target, or smooth-line rendering if a line primitive 7168f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * is drawn and line smoothing is supported by the 3D API. 7178f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 7188f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kHWAntialias_StateBit = 0x02, 7198f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 7208f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Draws will respect the clip, otherwise the clip is ignored. 7218f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 7228f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kClip_StateBit = 0x04, 7238f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 7248f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Disables writing to the color buffer. Useful when performing stencil 7258f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * operations. 7268f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 7278f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kNoColorWrites_StateBit = 0x08, 7280342a85091fd430c90a142d155dc9642aa729d9ebsalomon@google.com 7298f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com // Users of the class may add additional bits to the vector 7308f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kDummyStateBit, 7318f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kLastPublicStateBit = kDummyStateBit-1, 7328f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com }; 7338f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 7348f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void resetStateFlags() { 7358f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fFlagBits = 0; 7360fec61d19ca9088d54f58bd0a67150171b83d66cbsalomon@google.com } 7370fec61d19ca9088d54f58bd0a67150171b83d66cbsalomon@google.com 7388f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 7398f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Enable render state settings. 7408f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 7411e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com * @param stateBits bitfield of StateBits specifying the states to enable 7428f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 7438f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void enableState(uint32_t stateBits) { 7448f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fFlagBits |= stateBits; 7458f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 7460fec61d19ca9088d54f58bd0a67150171b83d66cbsalomon@google.com 7478f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 7488f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Disable render state settings. 7498f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * 7501e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com * @param stateBits bitfield of StateBits specifying the states to disable 7518f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 7528f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void disableState(uint32_t stateBits) { 7538f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fFlagBits &= ~(stateBits); 7548f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 7550fec61d19ca9088d54f58bd0a67150171b83d66cbsalomon@google.com 756d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com /** 757d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com * Enable or disable stateBits based on a boolean. 758d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com * 7591e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com * @param stateBits bitfield of StateBits to enable or disable 760d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com * @param enable if true enable stateBits, otherwise disable 761d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com */ 762d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com void setState(uint32_t stateBits, bool enable) { 763d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com if (enable) { 764d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com this->enableState(stateBits); 765d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com } else { 766d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com this->disableState(stateBits); 767d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com } 768d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com } 769d5d69ffaea117428972db48796f7e75f0d1dab34bsalomon@google.com 7708f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com bool isDitherState() const { 7718f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com return 0 != (fFlagBits & kDither_StateBit); 7728f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 7730fec61d19ca9088d54f58bd0a67150171b83d66cbsalomon@google.com 7748f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com bool isHWAntialiasState() const { 7758f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com return 0 != (fFlagBits & kHWAntialias_StateBit); 7768f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 7770fec61d19ca9088d54f58bd0a67150171b83d66cbsalomon@google.com 7788f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com bool isClipState() const { 7798f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com return 0 != (fFlagBits & kClip_StateBit); 7808f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 7810fec61d19ca9088d54f58bd0a67150171b83d66cbsalomon@google.com 7828f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com bool isColorWriteDisabled() const { 7838f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com return 0 != (fFlagBits & kNoColorWrites_StateBit); 7848f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 7858f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 7868f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com bool isStateFlagEnabled(uint32_t stateBit) const { 7878f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com return 0 != (stateBit & fFlagBits); 7888f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 7898f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 7908f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 7918f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 7928f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 7938f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @name Face Culling 7948f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com //// 7958f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 7968f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com enum DrawFace { 797978c8c61ba1e792567e9d8e6629c2c4ee59727b7bsalomon@google.com kInvalid_DrawFace = -1, 798978c8c61ba1e792567e9d8e6629c2c4ee59727b7bsalomon@google.com 7998f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kBoth_DrawFace, 8008f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kCCW_DrawFace, 8018f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com kCW_DrawFace, 8028f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com }; 8038f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 8048f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 8058f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Controls whether clockwise, counterclockwise, or both faces are drawn. 8068f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @param face the face(s) to draw. 8078f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 8088f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com void setDrawFace(DrawFace face) { 809978c8c61ba1e792567e9d8e6629c2c4ee59727b7bsalomon@google.com GrAssert(kInvalid_DrawFace != face); 8108f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com fDrawFace = face; 8118f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com } 8128f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 8138f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /** 8148f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * Gets whether the target is drawing clockwise, counterclockwise, 8158f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * or both faces. 8168f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com * @return the current draw face(s). 8178f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com */ 81852a5dcb43b5acbde377f664807b0f75af8bb1666bsalomon@google.com DrawFace getDrawFace() const { return fDrawFace; } 819d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 8208f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /// @} 8218f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 8228f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com /////////////////////////////////////////////////////////////////////////// 82362b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com 824f13f58804659175925042a291304d483a4fd9278tomhudson@google.com bool isStageEnabled(int s) const { 825f13f58804659175925042a291304d483a4fd9278tomhudson@google.com GrAssert((unsigned)s < kNumStages); 8266f261bed0252e3f3caa595798364e0bf12a2573absalomon@google.com return (NULL != fSamplerStates[s].getEffect()); 827f13f58804659175925042a291304d483a4fd9278tomhudson@google.com } 828f13f58804659175925042a291304d483a4fd9278tomhudson@google.com 82962b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com // Most stages are usually not used, so conditionals here 83062b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com // reduce the expected number of bytes touched by 50%. 8319381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com bool operator ==(const GrDrawState& s) const { 832861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com if (fColor != s.fColor || 833861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com !s.fViewMatrix.cheapEqualTo(fViewMatrix) || 834861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fRenderTarget != s.fRenderTarget || 835861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fSrcBlend != s.fSrcBlend || 836861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fDstBlend != s.fDstBlend || 837861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fBlendConstant != s.fBlendConstant || 838861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fFlagBits != s.fFlagBits || 839861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fVertexEdgeType != s.fVertexEdgeType || 840861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fStencilSettings != s.fStencilSettings || 841861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fFirstCoverageStage != s.fFirstCoverageStage || 842861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fCoverage != s.fCoverage || 843861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fColorFilterMode != s.fColorFilterMode || 844861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fColorFilterColor != s.fColorFilterColor || 845861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fDrawFace != s.fDrawFace) { 8468fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com return false; 8478fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com } 84862b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com 84962b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com for (int i = 0; i < kNumStages; i++) { 850f2f8fc37265a6ef06897117451a3a9238287c13bbsalomon@google.com bool enabled = this->isStageEnabled(i); 851f2f8fc37265a6ef06897117451a3a9238287c13bbsalomon@google.com if (enabled != s.isStageEnabled(i)) { 852f2f8fc37265a6ef06897117451a3a9238287c13bbsalomon@google.com return false; 853f2f8fc37265a6ef06897117451a3a9238287c13bbsalomon@google.com } 854f2f8fc37265a6ef06897117451a3a9238287c13bbsalomon@google.com if (enabled && this->fSamplerStates[i] != s.fSamplerStates[i]) { 85562b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com return false; 85662b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com } 85762b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com } 85862b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com return true; 8599381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com } 8609381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com bool operator !=(const GrDrawState& s) const { return !(*this == s); } 86162b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com 862d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com // Most stages are usually not used, so conditionals here 86362b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com // reduce the expected number of bytes touched by 50%. 86462b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com GrDrawState& operator =(const GrDrawState& s) { 865861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fColor = s.fColor; 8668fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com fViewMatrix = s.fViewMatrix; 867861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com SkRefCnt_SafeAssign(fRenderTarget, s.fRenderTarget); 868861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fSrcBlend = s.fSrcBlend; 869861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fDstBlend = s.fDstBlend; 870861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fBlendConstant = s.fBlendConstant; 871861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fFlagBits = s.fFlagBits; 872861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fVertexEdgeType = s.fVertexEdgeType; 873861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fStencilSettings = s.fStencilSettings; 874861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fFirstCoverageStage = s.fFirstCoverageStage; 875861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fCoverage = s.fCoverage; 876861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fColorFilterMode = s.fColorFilterMode; 877861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fColorFilterColor = s.fColorFilterColor; 878861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com fDrawFace = s.fDrawFace; 8798fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com 88062b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com for (int i = 0; i < kNumStages; i++) { 881e742bf0ab19659145325ac894f7e0b78c8efbd89tomhudson@google.com if (s.isStageEnabled(i)) { 88202b1ea24fd1152cb5a93e05b4d78700740140db6tomhudson@google.com this->fSamplerStates[i] = s.fSamplerStates[i]; 88362b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com } 88462b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com } 8859ec075366ed94802a142fc5e948d19a774f85b43robertphillips@google.com 88662b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com return *this; 88762b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com } 88862b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.com 88962b09687857c923b1044be0aef4dd900f8379b22tomhudson@google.comprivate: 8902e3d144dfdbc4596d33baef7396316f88f412cc8bsalomon@google.com 8911e269b5a08610da13c3aee23809bb45b17e7b663bsalomon@google.com // These fields are roughly sorted by decreasing likelihood of being different in op== 892861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com GrColor fColor; 893861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com GrMatrix fViewMatrix; 894861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com GrRenderTarget* fRenderTarget; 895861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com GrBlendCoeff fSrcBlend; 896861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com GrBlendCoeff fDstBlend; 897861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com GrColor fBlendConstant; 898861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com uint32_t fFlagBits; 899c077d1eaa8322087f3cc954c3b2e9af7fef103fcrobertphillips@google.com VertexEdgeType fVertexEdgeType; 90052a5dcb43b5acbde377f664807b0f75af8bb1666bsalomon@google.com GrStencilSettings fStencilSettings; 90169ffcf0d34878be7a1d2493785bf4df363199b10robertphillips@google.com int fFirstCoverageStage; 9022401ae8fd3c1f6282f571b5a7e0a499e9f4c09abbsalomon@google.com GrColor fCoverage; 90352a5dcb43b5acbde377f664807b0f75af8bb1666bsalomon@google.com SkXfermode::Mode fColorFilterMode; 904861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com GrColor fColorFilterColor; 905861b3a28c3cad66040805140de8c06ad6fceb5dabsalomon@google.com DrawFace fDrawFace; 9068fe84b53a64b5d92f3aabdd8e7fc7b2ee15c0a75bsalomon@google.com 9078f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com // This field must be last; it will not be copied or compared 9088f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com // if the corresponding fTexture[] is NULL. 90952a5dcb43b5acbde377f664807b0f75af8bb1666bsalomon@google.com GrSamplerState fSamplerStates[kNumStages]; 9108f9cbd62ec108d410b91155dcf6a4789c641246fbsalomon@google.com 911fa35e3ddcc9d130ce87c927218bdf27879c38711reed@google.com typedef GrRefCnt INHERITED; 9129381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com}; 9139381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com 9149381363050ec9d3e724076a8e9152bfa9a8de1d1tomhudson@google.com#endif 915