src/third_party/skia/src/gpu/gl/GrGLPathRange.cpp

   1
   2 /*
   3  * Copyright 2014 Google Inc.
   4  *
   5  * Use of this source code is governed by a BSD-style license that can be
   6  * found in the LICENSE file.
   7  */
   8
   9 #include "GrGLPathRange.h"
  10 #include "GrGLPath.h"
  11 #include "GrGLPathRendering.h"
  12 #include "GrGpuGL.h"
  13
  14 GrGLPathRange::GrGLPathRange(GrGpuGL* gpu, PathGenerator* pathGenerator, const SkStrokeRec& stroke)
  15     : INHERITED(gpu, pathGenerator, stroke),
  16       fBasePathID(gpu->glPathRendering()->genPaths(this->getNumPaths())),
  17       fGpuMemorySize(0) {
  18     this->registerWithCache();
  19 }
  20
  21 GrGLPathRange::GrGLPathRange(GrGpuGL* gpu,
  22                              GrGLuint basePathID,
  23                              int numPaths,
  24                              size_t gpuMemorySize,
  25                              const SkStrokeRec& stroke)
  26     : INHERITED(gpu, numPaths, stroke),
  27       fBasePathID(basePathID),
  28       fGpuMemorySize(gpuMemorySize) {
  29     this->registerWithCache();
  30 }
  31
  32 GrGLPathRange::~GrGLPathRange() {
  33     this->release();
  34 }
  35
  36 void GrGLPathRange::onInitPath(int index, const SkPath& skPath) const {
  37     GrGpuGL* gpu = static_cast<GrGpuGL*>(this->getGpu());
  38     if (NULL == gpu) {
  39         return;
  40     }
  41
  42     // Make sure the path at this index hasn't been initted already.
  43     SkDEBUGCODE(
  44         GrGLboolean isPath;
  45         GR_GL_CALL_RET(gpu->glInterface(), isPath, IsPath(fBasePathID + index)));
  46     SkASSERT(GR_GL_FALSE == isPath);
  47
  48     GrGLPath::InitPathObject(gpu, fBasePathID + index, skPath, this->getStroke());
  49
  50     // TODO: Use a better approximation for the individual path sizes.
  51     fGpuMemorySize += 100;
  52 }
  53
  54 void GrGLPathRange::onRelease() {
  55     SkASSERT(this->getGpu());
  56
  57     if (0 != fBasePathID && !this->isWrapped()) {
  58         static_cast<GrGpuGL*>(this->getGpu())->glPathRendering()->deletePaths(fBasePathID,
  59                                                                               this->getNumPaths());
  60         fBasePathID = 0;
  61     }
  62
  63     INHERITED::onRelease();
  64 }
  65
  66 void GrGLPathRange::onAbandon() {
  67     fBasePathID = 0;
  68
  69     INHERITED::onAbandon();
  70 }