gfx/skia/trunk/src/gpu/gl/SkGLContextHelper.cpp@129ffea94266
gfx/skia/trunk/src/gpu/gl/SkGLContextHelper.cpp
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
2 /*
3 * Copyright 2013 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 #include "gl/SkGLContextHelper.h"
9 #include "GrGLUtil.h"
11 SkGLContextHelper::SkGLContextHelper()
12 : fFBO(0)
13 , fColorBufferID(0)
14 , fDepthStencilBufferID(0)
15 , fGL(NULL) {
16 }
18 SkGLContextHelper::~SkGLContextHelper() {
20 if (fGL) {
21 // TODO: determine why DeleteFramebuffers is generating a GL error in tests
22 SK_GL_NOERRCHECK(*this, DeleteFramebuffers(1, &fFBO));
23 SK_GL_NOERRCHECK(*this, DeleteRenderbuffers(1, &fColorBufferID));
24 SK_GL_NOERRCHECK(*this, DeleteRenderbuffers(1, &fDepthStencilBufferID));
25 }
27 SkSafeUnref(fGL);
28 }
30 bool SkGLContextHelper::init(int width, int height) {
31 if (fGL) {
32 fGL->unref();
33 this->destroyGLContext();
34 }
36 fGL = this->createGLContext();
37 if (fGL) {
38 const GrGLubyte* temp;
40 if (!fGL->validate()) {
41 fGL = NULL;
42 this->destroyGLContext();
43 return false;
44 }
46 SK_GL_RET(*this, temp, GetString(GR_GL_VERSION));
47 const char* versionStr = reinterpret_cast<const char*>(temp);
48 GrGLVersion version = GrGLGetVersionFromString(versionStr);
50 // clear any existing GL erorrs
51 GrGLenum error;
52 do {
53 SK_GL_RET(*this, error, GetError());
54 } while (GR_GL_NO_ERROR != error);
56 SK_GL(*this, GenFramebuffers(1, &fFBO));
57 SK_GL(*this, BindFramebuffer(GR_GL_FRAMEBUFFER, fFBO));
58 SK_GL(*this, GenRenderbuffers(1, &fColorBufferID));
59 SK_GL(*this, BindRenderbuffer(GR_GL_RENDERBUFFER, fColorBufferID));
60 if (kGLES_GrGLStandard == this->gl()->fStandard) {
61 SK_GL(*this, RenderbufferStorage(GR_GL_RENDERBUFFER,
62 GR_GL_RGBA8,
63 width, height));
64 } else {
65 SK_GL(*this, RenderbufferStorage(GR_GL_RENDERBUFFER,
66 GR_GL_RGBA,
67 width, height));
68 }
69 SK_GL(*this, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
70 GR_GL_COLOR_ATTACHMENT0,
71 GR_GL_RENDERBUFFER,
72 fColorBufferID));
73 SK_GL(*this, GenRenderbuffers(1, &fDepthStencilBufferID));
74 SK_GL(*this, BindRenderbuffer(GR_GL_RENDERBUFFER, fDepthStencilBufferID));
76 // Some drivers that support packed depth stencil will only succeed
77 // in binding a packed format an FBO. However, we can't rely on packed
78 // depth stencil being available.
79 bool supportsPackedDepthStencil;
80 if (kGLES_GrGLStandard == this->gl()->fStandard) {
81 supportsPackedDepthStencil = version >= GR_GL_VER(3,0) ||
82 this->hasExtension("GL_OES_packed_depth_stencil");
83 } else {
84 supportsPackedDepthStencil = version >= GR_GL_VER(3,0) ||
85 this->hasExtension("GL_EXT_packed_depth_stencil") ||
86 this->hasExtension("GL_ARB_framebuffer_object");
87 }
89 if (supportsPackedDepthStencil) {
90 // ES2 requires sized internal formats for RenderbufferStorage
91 // On Desktop we let the driver decide.
92 GrGLenum format = kGLES_GrGLStandard == this->gl()->fStandard ?
93 GR_GL_DEPTH24_STENCIL8 :
94 GR_GL_DEPTH_STENCIL;
95 SK_GL(*this, RenderbufferStorage(GR_GL_RENDERBUFFER,
96 format,
97 width, height));
98 SK_GL(*this, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
99 GR_GL_DEPTH_ATTACHMENT,
100 GR_GL_RENDERBUFFER,
101 fDepthStencilBufferID));
102 } else {
103 GrGLenum format = kGLES_GrGLStandard == this->gl()->fStandard ? GR_GL_STENCIL_INDEX8 :
104 GR_GL_STENCIL_INDEX;
105 SK_GL(*this, RenderbufferStorage(GR_GL_RENDERBUFFER,
106 format,
107 width, height));
108 }
109 SK_GL(*this, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
110 GR_GL_STENCIL_ATTACHMENT,
111 GR_GL_RENDERBUFFER,
112 fDepthStencilBufferID));
113 SK_GL(*this, Viewport(0, 0, width, height));
114 SK_GL(*this, ClearStencil(0));
115 SK_GL(*this, Clear(GR_GL_STENCIL_BUFFER_BIT));
117 SK_GL_RET(*this, error, GetError());
118 GrGLenum status;
119 SK_GL_RET(*this, status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER));
121 if (GR_GL_FRAMEBUFFER_COMPLETE != status ||
122 GR_GL_NO_ERROR != error) {
123 fFBO = 0;
124 fColorBufferID = 0;
125 fDepthStencilBufferID = 0;
126 fGL->unref();
127 fGL = NULL;
128 this->destroyGLContext();
129 return false;
130 } else {
131 return true;
132 }
133 }
134 return false;
135 }
