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 }
25
26 namespace {
MakeDesc(GrTextureFlags flags,int width,int height,GrPixelConfig config,int sampleCnt,GrSurfaceOrigin origin)27 GrTextureDesc MakeDesc(GrTextureFlags flags,
28 int width, int height,
29 GrPixelConfig config, int sampleCnt,
30 GrSurfaceOrigin origin) {
31 GrTextureDesc temp;
32 temp.fFlags = flags;
33 temp.fWidth = width;
34 temp.fHeight = height;
35 temp.fConfig = config;
36 temp.fSampleCnt = sampleCnt;
37 temp.fOrigin = origin;
38 return temp;
39 }
40
41 };
42
GrGLRenderTarget(GrGpuGL * gpu,const Desc & desc,const GrGLIRect & viewport,GrGLTexID * texID,GrGLTexture * texture)43 GrGLRenderTarget::GrGLRenderTarget(GrGpuGL* gpu,
44 const Desc& desc,
45 const GrGLIRect& viewport,
46 GrGLTexID* texID,
47 GrGLTexture* texture)
48 : INHERITED(gpu,
49 desc.fIsWrapped,
50 texture,
51 MakeDesc(kNone_GrTextureFlags,
52 viewport.fWidth, viewport.fHeight,
53 desc.fConfig, desc.fSampleCnt,
54 desc.fOrigin)) {
55 SkASSERT(NULL != texID);
56 SkASSERT(NULL != texture);
57 // FBO 0 can't also be a texture, right?
58 SkASSERT(0 != desc.fRTFBOID);
59 SkASSERT(0 != desc.fTexFBOID);
60
61 // we assume this is true, TODO: get rid of viewport as a param.
62 SkASSERT(viewport.fWidth == texture->width());
63 SkASSERT(viewport.fHeight == texture->height());
64
65 this->init(desc, viewport, texID);
66 }
67
GrGLRenderTarget(GrGpuGL * gpu,const Desc & desc,const GrGLIRect & viewport)68 GrGLRenderTarget::GrGLRenderTarget(GrGpuGL* gpu,
69 const Desc& desc,
70 const GrGLIRect& viewport)
71 : INHERITED(gpu,
72 desc.fIsWrapped,
73 NULL,
74 MakeDesc(kNone_GrTextureFlags,
75 viewport.fWidth, viewport.fHeight,
76 desc.fConfig, desc.fSampleCnt,
77 desc.fOrigin)) {
78 this->init(desc, viewport, NULL);
79 }
80
onRelease()81 void GrGLRenderTarget::onRelease() {
82 GPUGL->notifyRenderTargetDelete(this);
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 (NULL != fTexIDObj.get()) {
106 fTexIDObj->abandon();
107 fTexIDObj.reset(NULL);
108 }
109 INHERITED::onAbandon();
110 }
111