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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 
GrGLPathRange(GrGpuGL * gpu,PathGenerator * pathGenerator,const SkStrokeRec & stroke)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 
GrGLPathRange(GrGpuGL * gpu,GrGLuint basePathID,int numPaths,size_t gpuMemorySize,const SkStrokeRec & stroke)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 
~GrGLPathRange()32 GrGLPathRange::~GrGLPathRange() {
33     this->release();
34 }
35 
onInitPath(int index,const SkPath & skPath) const36 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 
onRelease()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 
onAbandon()66 void GrGLPathRange::onAbandon() {
67     fBasePathID = 0;
68 
69     INHERITED::onAbandon();
70 }
71