1 /*
2 * Copyright 2011 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 "GrGLRenderTarget.h"
9
10 #include "GrGpuGL.h"
11
12 #define GPUGL static_cast<GrGpuGL*>(getGpu())
13
14 #define GL_CALL(X) GR_GL_CALL(GPUGL->glInterface(), X)
15
init(const Desc & desc,const GrGLIRect & viewport,GrGLTexID * texID)16 void GrGLRenderTarget::init(const Desc& desc,
17 const GrGLIRect& viewport,
18 GrGLTexID* texID) {
19 fRTFBOID = desc.fRTFBOID;
20 fTexFBOID = desc.fTexFBOID;
21 fMSColorRenderbufferID = desc.fMSColorRenderbufferID;
22 fViewport = viewport;
23 fTexIDObj.reset(SkSafeRef(texID));
24 this->registerWithCache();
25 }
26
27 namespace {
MakeDesc(GrTextureFlags flags,int width,int height,GrPixelConfig config,int sampleCnt,GrSurfaceOrigin origin)28 GrTextureDesc MakeDesc(GrTextureFlags flags,
29 int width, int height,
30 GrPixelConfig config, int sampleCnt,
31 GrSurfaceOrigin origin) {
32 GrTextureDesc temp;
33 temp.fFlags = flags;
34 temp.fWidth = width;
35 temp.fHeight = height;
36 temp.fConfig = config;
37 temp.fSampleCnt = sampleCnt;
38 temp.fOrigin = origin;
39 return temp;
40 }
41
42 };
43
GrGLRenderTarget(GrGpuGL * gpu,const Desc & desc,const GrGLIRect & viewport,GrGLTexID * texID,GrGLTexture * texture)44 GrGLRenderTarget::GrGLRenderTarget(GrGpuGL* gpu,
45 const Desc& desc,
46 const GrGLIRect& viewport,
47 GrGLTexID* texID,
48 GrGLTexture* texture)
49 : INHERITED(gpu,
50 desc.fIsWrapped,
51 texture,
52 MakeDesc(kNone_GrTextureFlags,
53 viewport.fWidth, viewport.fHeight,
54 desc.fConfig, desc.fSampleCnt,
55 desc.fOrigin)) {
56 SkASSERT(texID);
57 SkASSERT(texture);
58 // FBO 0 can't also be a texture, right?
59 SkASSERT(0 != desc.fRTFBOID);
60 SkASSERT(0 != desc.fTexFBOID);
61
62 // we assume this is true, TODO: get rid of viewport as a param.
63 SkASSERT(viewport.fWidth == texture->width());
64 SkASSERT(viewport.fHeight == texture->height());
65
66 this->init(desc, viewport, texID);
67 }
68
GrGLRenderTarget(GrGpuGL * gpu,const Desc & desc,const GrGLIRect & viewport)69 GrGLRenderTarget::GrGLRenderTarget(GrGpuGL* gpu,
70 const Desc& desc,
71 const GrGLIRect& viewport)
72 : INHERITED(gpu,
73 desc.fIsWrapped,
74 NULL,
75 MakeDesc(kNone_GrTextureFlags,
76 viewport.fWidth, viewport.fHeight,
77 desc.fConfig, desc.fSampleCnt,
78 desc.fOrigin)) {
79 this->init(desc, viewport, NULL);
80 }
81
onRelease()82 void GrGLRenderTarget::onRelease() {
83 if (!this->isWrapped()) {
84 if (fTexFBOID) {
85 GL_CALL(DeleteFramebuffers(1, &fTexFBOID));
86 }
87 if (fRTFBOID && fRTFBOID != fTexFBOID) {
88 GL_CALL(DeleteFramebuffers(1, &fRTFBOID));
89 }
90 if (fMSColorRenderbufferID) {
91 GL_CALL(DeleteRenderbuffers(1, &fMSColorRenderbufferID));
92 }
93 }
94 fRTFBOID = 0;
95 fTexFBOID = 0;
96 fMSColorRenderbufferID = 0;
97 fTexIDObj.reset(NULL);
98 INHERITED::onRelease();
99 }
100
onAbandon()101 void GrGLRenderTarget::onAbandon() {
102 fRTFBOID = 0;
103 fTexFBOID = 0;
104 fMSColorRenderbufferID = 0;
105 if (fTexIDObj.get()) {
106 fTexIDObj->abandon();
107 fTexIDObj.reset(NULL);
108 }
109 INHERITED::onAbandon();
110 }
111