gfx/gl/SharedSurfaceIO.cpp@129ffea94266 (annotated)
gfx/gl/SharedSurfaceIO.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.
| michael@0 | 1 | /* -*- Mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40; -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #include "SharedSurfaceIO.h" |
| michael@0 | 7 | #include "GLContextCGL.h" |
| michael@0 | 8 | #include "mozilla/gfx/MacIOSurface.h" |
| michael@0 | 9 | #include "mozilla/DebugOnly.h" |
| michael@0 | 10 | #include "ScopedGLHelpers.h" |
| michael@0 | 11 | |
| michael@0 | 12 | namespace mozilla { |
| michael@0 | 13 | namespace gl { |
| michael@0 | 14 | |
| michael@0 | 15 | using namespace gfx; |
| michael@0 | 16 | |
| michael@0 | 17 | /* static */ SharedSurface_IOSurface* |
| michael@0 | 18 | SharedSurface_IOSurface::Create(MacIOSurface* surface, GLContext *gl, bool hasAlpha) |
| michael@0 | 19 | { |
| michael@0 | 20 | MOZ_ASSERT(surface); |
| michael@0 | 21 | MOZ_ASSERT(gl); |
| michael@0 | 22 | |
| michael@0 | 23 | gfx::IntSize size(surface->GetWidth(), surface->GetHeight()); |
| michael@0 | 24 | return new SharedSurface_IOSurface(surface, gl, size, hasAlpha); |
| michael@0 | 25 | } |
| michael@0 | 26 | |
| michael@0 | 27 | void |
| michael@0 | 28 | SharedSurface_IOSurface::Fence() |
| michael@0 | 29 | { |
| michael@0 | 30 | mGL->MakeCurrent(); |
| michael@0 | 31 | mGL->fFlush(); |
| michael@0 | 32 | } |
| michael@0 | 33 | |
| michael@0 | 34 | bool |
| michael@0 | 35 | SharedSurface_IOSurface::ReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, |
| michael@0 | 36 | GLenum format, GLenum type, GLvoid *pixels) |
| michael@0 | 37 | { |
| michael@0 | 38 | // Calling glReadPixels when an IOSurface is bound to the current framebuffer |
| michael@0 | 39 | // can cause corruption in following glReadPixel calls (even if they aren't |
| michael@0 | 40 | // reading from an IOSurface). |
| michael@0 | 41 | // We workaround this by copying to a temporary texture, and doing the readback |
| michael@0 | 42 | // from that. |
| michael@0 | 43 | MOZ_ASSERT(mGL->IsCurrent()); |
| michael@0 | 44 | |
| michael@0 | 45 | |
| michael@0 | 46 | ScopedTexture destTex(mGL); |
| michael@0 | 47 | { |
| michael@0 | 48 | ScopedFramebufferForTexture srcFB(mGL, ProdTexture(), ProdTextureTarget()); |
| michael@0 | 49 | |
| michael@0 | 50 | ScopedBindFramebuffer bindFB(mGL, srcFB.FB()); |
| michael@0 | 51 | ScopedBindTexture bindTex(mGL, destTex.Texture()); |
| michael@0 | 52 | mGL->fCopyTexImage2D(LOCAL_GL_TEXTURE_2D, 0, |
| michael@0 | 53 | HasAlpha() ? LOCAL_GL_RGBA : LOCAL_GL_RGB, |
| michael@0 | 54 | x, y, |
| michael@0 | 55 | width, height, 0); |
| michael@0 | 56 | } |
| michael@0 | 57 | |
| michael@0 | 58 | ScopedFramebufferForTexture destFB(mGL, destTex.Texture()); |
| michael@0 | 59 | |
| michael@0 | 60 | ScopedBindFramebuffer bindFB(mGL, destFB.FB()); |
| michael@0 | 61 | mGL->fReadPixels(0, 0, width, height, format, type, pixels); |
| michael@0 | 62 | return true; |
| michael@0 | 63 | } |
| michael@0 | 64 | |
| michael@0 | 65 | static void |
| michael@0 | 66 | BackTextureWithIOSurf(GLContext* gl, GLuint tex, MacIOSurface* ioSurf) |
| michael@0 | 67 | { |
| michael@0 | 68 | MOZ_ASSERT(gl->IsCurrent()); |
| michael@0 | 69 | |
| michael@0 | 70 | ScopedBindTexture texture(gl, tex, LOCAL_GL_TEXTURE_RECTANGLE_ARB); |
| michael@0 | 71 | |
| michael@0 | 72 | gl->fTexParameteri(LOCAL_GL_TEXTURE_RECTANGLE_ARB, |
| michael@0 | 73 | LOCAL_GL_TEXTURE_MIN_FILTER, |
| michael@0 | 74 | LOCAL_GL_LINEAR); |
| michael@0 | 75 | gl->fTexParameteri(LOCAL_GL_TEXTURE_RECTANGLE_ARB, |
| michael@0 | 76 | LOCAL_GL_TEXTURE_MAG_FILTER, |
| michael@0 | 77 | LOCAL_GL_LINEAR); |
| michael@0 | 78 | gl->fTexParameteri(LOCAL_GL_TEXTURE_RECTANGLE_ARB, |
| michael@0 | 79 | LOCAL_GL_TEXTURE_WRAP_S, |
| michael@0 | 80 | LOCAL_GL_CLAMP_TO_EDGE); |
| michael@0 | 81 | gl->fTexParameteri(LOCAL_GL_TEXTURE_RECTANGLE_ARB, |
| michael@0 | 82 | LOCAL_GL_TEXTURE_WRAP_T, |
| michael@0 | 83 | LOCAL_GL_CLAMP_TO_EDGE); |
| michael@0 | 84 | |
| michael@0 | 85 | CGLContextObj cgl = GLContextCGL::Cast(gl)->GetCGLContext(); |
| michael@0 | 86 | MOZ_ASSERT(cgl); |
| michael@0 | 87 | |
| michael@0 | 88 | ioSurf->CGLTexImageIOSurface2D(cgl); |
| michael@0 | 89 | } |
| michael@0 | 90 | |
| michael@0 | 91 | SharedSurface_IOSurface::SharedSurface_IOSurface(MacIOSurface* surface, |
| michael@0 | 92 | GLContext* gl, |
| michael@0 | 93 | const gfx::IntSize& size, |
| michael@0 | 94 | bool hasAlpha) |
| michael@0 | 95 | : SharedSurface_GL(SharedSurfaceType::IOSurface, AttachmentType::GLTexture, gl, size, hasAlpha) |
| michael@0 | 96 | , mSurface(surface) |
| michael@0 | 97 | , mCurConsGL(nullptr) |
| michael@0 | 98 | , mConsTex(0) |
| michael@0 | 99 | { |
| michael@0 | 100 | gl->MakeCurrent(); |
| michael@0 | 101 | mProdTex = 0; |
| michael@0 | 102 | gl->fGenTextures(1, &mProdTex); |
| michael@0 | 103 | BackTextureWithIOSurf(gl, mProdTex, surface); |
| michael@0 | 104 | } |
| michael@0 | 105 | |
| michael@0 | 106 | GLuint |
| michael@0 | 107 | SharedSurface_IOSurface::ConsTexture(GLContext* consGL) |
| michael@0 | 108 | { |
| michael@0 | 109 | if (!mCurConsGL) { |
| michael@0 | 110 | mCurConsGL = consGL; |
| michael@0 | 111 | } |
| michael@0 | 112 | MOZ_ASSERT(consGL == mCurConsGL); |
| michael@0 | 113 | |
| michael@0 | 114 | if (!mConsTex) { |
| michael@0 | 115 | consGL->MakeCurrent(); |
| michael@0 | 116 | mConsTex = 0; |
| michael@0 | 117 | consGL->fGenTextures(1, &mConsTex); |
| michael@0 | 118 | BackTextureWithIOSurf(consGL, mConsTex, mSurface); |
| michael@0 | 119 | } |
| michael@0 | 120 | |
| michael@0 | 121 | return mConsTex; |
| michael@0 | 122 | } |
| michael@0 | 123 | |
| michael@0 | 124 | SharedSurface_IOSurface::~SharedSurface_IOSurface() |
| michael@0 | 125 | { |
| michael@0 | 126 | if (mProdTex) { |
| michael@0 | 127 | DebugOnly<bool> success = mGL->MakeCurrent(); |
| michael@0 | 128 | MOZ_ASSERT(success); |
| michael@0 | 129 | mGL->fDeleteTextures(1, &mProdTex); |
| michael@0 | 130 | mGL->fDeleteTextures(1, &mConsTex); // This will work if we're shared. |
| michael@0 | 131 | } |
| michael@0 | 132 | } |
| michael@0 | 133 | |
| michael@0 | 134 | SharedSurface* |
| michael@0 | 135 | SurfaceFactory_IOSurface::CreateShared(const gfx::IntSize& size) |
| michael@0 | 136 | { |
| michael@0 | 137 | bool hasAlpha = mReadCaps.alpha; |
| michael@0 | 138 | RefPtr<MacIOSurface> surf = |
| michael@0 | 139 | MacIOSurface::CreateIOSurface(size.width, size.height, 1.0, hasAlpha); |
| michael@0 | 140 | |
| michael@0 | 141 | if (!surf) { |
| michael@0 | 142 | NS_WARNING("Failed to create MacIOSurface."); |
| michael@0 | 143 | return nullptr; |
| michael@0 | 144 | } |
| michael@0 | 145 | |
| michael@0 | 146 | return SharedSurface_IOSurface::Create(surf, mGL, hasAlpha); |
| michael@0 | 147 | } |
| michael@0 | 148 | |
| michael@0 | 149 | } |
| michael@0 | 150 | } |
