The Tor Browser / file comparison
comparison: gfx/gl/SharedSurfaceGralloc.cpp
gfx/gl/SharedSurfaceGralloc.cpp
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:bda4464a55b7 |
|---|---|
| 1 /* -*- Mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40; -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "mozilla/Preferences.h" | |
| 7 | |
| 8 #include "SharedSurfaceGralloc.h" | |
| 9 | |
| 10 #include "GLContext.h" | |
| 11 #include "SharedSurfaceGL.h" | |
| 12 #include "SurfaceFactory.h" | |
| 13 #include "GLLibraryEGL.h" | |
| 14 #include "mozilla/layers/GrallocTextureClient.h" | |
| 15 #include "mozilla/layers/ShadowLayers.h" | |
| 16 | |
| 17 #include "ui/GraphicBuffer.h" | |
| 18 #include "../layers/ipc/ShadowLayers.h" | |
| 19 #include "ScopedGLHelpers.h" | |
| 20 | |
| 21 #include "gfxPlatform.h" | |
| 22 #include "gfx2DGlue.h" | |
| 23 #include "gfxPrefs.h" | |
| 24 | |
| 25 #define DEBUG_GRALLOC | |
| 26 #ifdef DEBUG_GRALLOC | |
| 27 #define DEBUG_PRINT(...) do { printf_stderr(__VA_ARGS__); } while (0) | |
| 28 #else | |
| 29 #define DEBUG_PRINT(...) do { } while (0) | |
| 30 #endif | |
| 31 | |
| 32 using namespace mozilla; | |
| 33 using namespace mozilla::gfx; | |
| 34 using namespace gl; | |
| 35 using namespace layers; | |
| 36 using namespace android; | |
| 37 | |
| 38 SurfaceFactory_Gralloc::SurfaceFactory_Gralloc(GLContext* prodGL, | |
| 39 const SurfaceCaps& caps, | |
| 40 layers::ISurfaceAllocator* allocator) | |
| 41 : SurfaceFactory_GL(prodGL, SharedSurfaceType::Gralloc, caps) | |
| 42 { | |
| 43 if (caps.surfaceAllocator) { | |
| 44 allocator = caps.surfaceAllocator; | |
| 45 } | |
| 46 | |
| 47 MOZ_ASSERT(allocator); | |
| 48 | |
| 49 mAllocator = allocator; | |
| 50 } | |
| 51 | |
| 52 SharedSurface_Gralloc* | |
| 53 SharedSurface_Gralloc::Create(GLContext* prodGL, | |
| 54 const GLFormats& formats, | |
| 55 const gfx::IntSize& size, | |
| 56 bool hasAlpha, | |
| 57 ISurfaceAllocator* allocator) | |
| 58 { | |
| 59 GLLibraryEGL* egl = &sEGLLibrary; | |
| 60 MOZ_ASSERT(egl); | |
| 61 | |
| 62 DEBUG_PRINT("SharedSurface_Gralloc::Create -------\n"); | |
| 63 | |
| 64 if (!HasExtensions(egl, prodGL)) | |
| 65 return nullptr; | |
| 66 | |
| 67 gfxContentType type = hasAlpha ? gfxContentType::COLOR_ALPHA | |
| 68 : gfxContentType::COLOR; | |
| 69 | |
| 70 gfxImageFormat format | |
| 71 = gfxPlatform::GetPlatform()->OptimalFormatForContent(type); | |
| 72 | |
| 73 RefPtr<GrallocTextureClientOGL> grallocTC = | |
| 74 new GrallocTextureClientOGL( | |
| 75 allocator, | |
| 76 gfx::ImageFormatToSurfaceFormat(format), | |
| 77 gfx::BackendType::NONE, // we don't need to use it with a DrawTarget | |
| 78 TEXTURE_FLAGS_DEFAULT); | |
| 79 | |
| 80 if (!grallocTC->AllocateForGLRendering(size)) { | |
| 81 return nullptr; | |
| 82 } | |
| 83 | |
| 84 sp<GraphicBuffer> buffer = grallocTC->GetGraphicBuffer(); | |
| 85 | |
| 86 EGLDisplay display = egl->Display(); | |
| 87 EGLClientBuffer clientBuffer = buffer->getNativeBuffer(); | |
| 88 EGLint attrs[] = { | |
| 89 LOCAL_EGL_NONE, LOCAL_EGL_NONE | |
| 90 }; | |
| 91 EGLImage image = egl->fCreateImage(display, | |
| 92 EGL_NO_CONTEXT, | |
| 93 LOCAL_EGL_NATIVE_BUFFER_ANDROID, | |
| 94 clientBuffer, attrs); | |
| 95 if (!image) { | |
| 96 return nullptr; | |
| 97 } | |
| 98 | |
| 99 prodGL->MakeCurrent(); | |
| 100 GLuint prodTex = 0; | |
| 101 prodGL->fGenTextures(1, &prodTex); | |
| 102 ScopedBindTexture autoTex(prodGL, prodTex); | |
| 103 | |
| 104 prodGL->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MIN_FILTER, LOCAL_GL_LINEAR); | |
| 105 prodGL->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_MAG_FILTER, LOCAL_GL_LINEAR); | |
| 106 prodGL->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_S, LOCAL_GL_CLAMP_TO_EDGE); | |
| 107 prodGL->fTexParameteri(LOCAL_GL_TEXTURE_2D, LOCAL_GL_TEXTURE_WRAP_T, LOCAL_GL_CLAMP_TO_EDGE); | |
| 108 | |
| 109 prodGL->fEGLImageTargetTexture2D(LOCAL_GL_TEXTURE_2D, image); | |
| 110 | |
| 111 egl->fDestroyImage(display, image); | |
| 112 | |
| 113 SharedSurface_Gralloc *surf = new SharedSurface_Gralloc(prodGL, size, hasAlpha, egl, allocator, grallocTC, prodTex); | |
| 114 | |
| 115 DEBUG_PRINT("SharedSurface_Gralloc::Create: success -- surface %p, GraphicBuffer %p.\n", surf, buffer.get()); | |
| 116 | |
| 117 return surf; | |
| 118 } | |
| 119 | |
| 120 | |
| 121 bool | |
| 122 SharedSurface_Gralloc::HasExtensions(GLLibraryEGL* egl, GLContext* gl) | |
| 123 { | |
| 124 return egl->HasKHRImageBase() && | |
| 125 gl->IsExtensionSupported(GLContext::OES_EGL_image); | |
| 126 } | |
| 127 | |
| 128 SharedSurface_Gralloc::~SharedSurface_Gralloc() | |
| 129 { | |
| 130 | |
| 131 DEBUG_PRINT("[SharedSurface_Gralloc %p] destroyed\n", this); | |
| 132 | |
| 133 mGL->MakeCurrent(); | |
| 134 mGL->fDeleteTextures(1, &mProdTex); | |
| 135 } | |
| 136 | |
| 137 void | |
| 138 SharedSurface_Gralloc::Fence() | |
| 139 { | |
| 140 // We should be able to rely on genlock write locks/read locks. | |
| 141 // But they're broken on some configs, and even a glFinish doesn't | |
| 142 // work. glReadPixels seems to, though. | |
| 143 if (gfxPrefs::GrallocFenceWithReadPixels()) { | |
| 144 mGL->MakeCurrent(); | |
| 145 // read a 1x1 pixel | |
| 146 unsigned char pixels[4]; | |
| 147 mGL->fReadPixels(0, 0, 1, 1, LOCAL_GL_RGBA, LOCAL_GL_UNSIGNED_BYTE, &pixels[0]); | |
| 148 } | |
| 149 } | |
| 150 | |
| 151 bool | |
| 152 SharedSurface_Gralloc::WaitSync() | |
| 153 { | |
| 154 return true; | |
| 155 } |
