Line data    Source code

       1             : /*
       2             :  * Copyright 2015 Google Inc.
       3             :  *
       4             :  * Use of this source code is governed by a BSD-style license that can be
       5             :  * found in the LICENSE file.
       6             :  */
       7             : 
       8             : #include "gl/GrGLVaryingHandler.h"
       9             : 
      10             : #include "gl/GrGLGpu.h"
      11             : #include "gl/builders/GrGLProgramBuilder.h"
      12             : 
      13             : 
      14           0 : GrGLSLVaryingHandler::VaryingHandle GrGLVaryingHandler::addPathProcessingVarying(
      15             :                                                                        const char* name,
      16             :                                                                        GrGLSLVertToFrag* v,
      17             :                                                                        GrSLPrecision fsPrecision) {
      18             : #ifdef SK_DEBUG
      19           0 :     GrGLProgramBuilder* glPB = (GrGLProgramBuilder*) fProgramBuilder;
      20             :     // This call is not used for non-NVPR backends.
      21           0 :     SkASSERT(glPB->gpu()->glCaps().shaderCaps()->pathRenderingSupport() &&
      22             :              glPB->fPrimProc.isPathRendering() &&
      23             :              !glPB->fPrimProc.willUseGeoShader() &&
      24             :              glPB->fPrimProc.numAttribs() == 0);
      25             : #endif
      26           0 :     this->addVarying(name, v, fsPrecision);
      27           0 :     auto varyingInfo = fPathProcVaryingInfos.push_back();
      28           0 :     varyingInfo.fLocation = fPathProcVaryingInfos.count() - 1;
      29           0 :     return VaryingHandle(varyingInfo.fLocation);
      30             : }
      31             : 
      32           0 : void GrGLVaryingHandler::onFinalize() {
      33           0 :     SkASSERT(fPathProcVaryingInfos.empty() || fPathProcVaryingInfos.count() == fFragInputs.count());
      34           0 :     for (int i = 0; i < fPathProcVaryingInfos.count(); ++i) {
      35           0 :         fPathProcVaryingInfos[i].fVariable = fFragInputs[i];
      36             :     }
      37           0 : }