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Commit dc979249 authored by Peiyong Lin's avatar Peiyong Lin
Browse files

[SurfaceFlinger] Add GPU protected content support. 

BUG: 35315015
Test: Test with a hacked patch.
Test: Watch Youtube movie, verifed by force GPU composition.
Change-Id: I1130c3ce7b534bfc1efefdf5a70b23311e2de944
parent 616aca2f

libs/renderengine/gl/GLESRenderEngine.cpp

+85 −17
Original line number Diff line number Diff line
@@ -242,20 +242,34 @@ std::unique_ptr<GLESRenderEngine> GLESRenderEngine::create(int hwcFormat, uint32 


    bool useContextPriority = extensions.hasContextPriority() &&

            (featureFlags & RenderEngine::USE_HIGH_PRIORITY_CONTEXT);

    EGLContext ctxt = createEglContext(display, config, EGL_NO_CONTEXT, useContextPriority);

    EGLContext protectedContext = EGL_NO_CONTEXT;

    if (extensions.hasProtectedContent()) {

        protectedContext = createEglContext(display, config, nullptr, useContextPriority,

                                            Protection::PROTECTED);

        ALOGE_IF(protectedContext == EGL_NO_CONTEXT, "Can't create protected context");

    }



    EGLContext ctxt = createEglContext(display, config, protectedContext, useContextPriority,

                                       Protection::UNPROTECTED);



    // if can't create a GL context, we can only abort.

    LOG_ALWAYS_FATAL_IF(ctxt == EGL_NO_CONTEXT, "EGLContext creation failed");



    EGLSurface dummy = EGL_NO_SURFACE;

    if (!extensions.hasSurfacelessContext()) {

        dummy = createDummyEglPbufferSurface(display, config, hwcFormat);

        dummy = createDummyEglPbufferSurface(display, config, hwcFormat, Protection::UNPROTECTED);

        LOG_ALWAYS_FATAL_IF(dummy == EGL_NO_SURFACE, "can't create dummy pbuffer");

    }



    EGLBoolean success = eglMakeCurrent(display, dummy, dummy, ctxt);

    LOG_ALWAYS_FATAL_IF(!success, "can't make dummy pbuffer current");



    EGLSurface protectedDummy = EGL_NO_SURFACE;

    if (protectedContext != EGL_NO_CONTEXT && !extensions.hasSurfacelessContext()) {

        protectedDummy =

                createDummyEglPbufferSurface(display, config, hwcFormat, Protection::PROTECTED);

        ALOGE_IF(protectedDummy == EGL_NO_SURFACE, "can't create protected dummy pbuffer");

    }



    extensions.initWithGLStrings(glGetString(GL_VENDOR), glGetString(GL_RENDERER),

                                 glGetString(GL_VERSION), glGetString(GL_EXTENSIONS));
@@ -271,7 +285,8 @@ std::unique_ptr<GLESRenderEngine> GLESRenderEngine::create(int hwcFormat, uint32 
            break;

        case GLES_VERSION_2_0:

        case GLES_VERSION_3_0:

            engine = std::make_unique<GLESRenderEngine>(featureFlags, display, config, ctxt, dummy);

            engine = std::make_unique<GLESRenderEngine>(featureFlags, display, config, ctxt, dummy,

                                                        protectedContext, protectedDummy);

            break;

    }
@@ -326,12 +341,15 @@ EGLConfig GLESRenderEngine::chooseEglConfig(EGLDisplay display, int format, bool 
}



GLESRenderEngine::GLESRenderEngine(uint32_t featureFlags, EGLDisplay display, EGLConfig config,

                                   EGLContext ctxt, EGLSurface dummy)

                                   EGLContext ctxt, EGLSurface dummy, EGLContext protectedContext,

                                   EGLSurface protectedDummy)

      : renderengine::impl::RenderEngine(featureFlags),

        mEGLDisplay(display),

        mEGLConfig(config),

        mEGLContext(ctxt),

        mDummySurface(dummy),

        mProtectedEGLContext(protectedContext),

        mProtectedDummySurface(protectedDummy),

        mVpWidth(0),

        mVpHeight(0),

        mUseColorManagement(featureFlags & USE_COLOR_MANAGEMENT) {
@@ -341,6 +359,17 @@ GLESRenderEngine::GLESRenderEngine(uint32_t featureFlags, EGLDisplay display, EG 
    glPixelStorei(GL_UNPACK_ALIGNMENT, 4);

    glPixelStorei(GL_PACK_ALIGNMENT, 4);



    // Initialize protected EGL Context.

    if (mProtectedEGLContext != EGL_NO_CONTEXT) {

        EGLBoolean success = eglMakeCurrent(display, mProtectedDummySurface, mProtectedDummySurface,

                                            mProtectedEGLContext);

        ALOGE_IF(!success, "can't make protected context current");

        glPixelStorei(GL_UNPACK_ALIGNMENT, 4);

        glPixelStorei(GL_PACK_ALIGNMENT, 4);

        success = eglMakeCurrent(display, mDummySurface, mDummySurface, mEGLContext);

        LOG_ALWAYS_FATAL_IF(!success, "can't make default context current");

    }



    const uint16_t protTexData[] = {0};

    glGenTextures(1, &mProtectedTexName);

    glBindTexture(GL_TEXTURE_2D, mProtectedTexName);
@@ -395,7 +424,8 @@ std::unique_ptr<Image> GLESRenderEngine::createImage() { 
}



void GLESRenderEngine::primeCache() const {

    ProgramCache::getInstance().primeCache(mFeatureFlags & USE_COLOR_MANAGEMENT);

    ProgramCache::getInstance().primeCache(mInProtectedContext ? mProtectedEGLContext : mEGLContext,

                                           mFeatureFlags & USE_COLOR_MANAGEMENT);

}



bool GLESRenderEngine::isCurrent() const {
@@ -539,6 +569,7 @@ void GLESRenderEngine::bindExternalTextureImage(uint32_t texName, const Image& i 
    const GLenum target = GL_TEXTURE_EXTERNAL_OES;



    glBindTexture(target, texName);

    glTexParameteri(target, GL_TEXTURE_PROTECTED_EXT, glImage.isProtected() ? GL_TRUE : GL_FALSE);

    if (glImage.getEGLImage() != EGL_NO_IMAGE_KHR) {

        glEGLImageTargetTexture2DOES(target, static_cast<GLeglImageOES>(glImage.getEGLImage()));

    }
@@ -552,6 +583,8 @@ status_t GLESRenderEngine::bindFrameBuffer(Framebuffer* framebuffer) { 


    // Bind the texture and turn our EGLImage into a texture

    glBindTexture(GL_TEXTURE_2D, textureName);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_PROTECTED_EXT,

                    mInProtectedContext ? GL_TRUE : GL_FALSE);

    glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)eglImage);



    // Bind the Framebuffer to render into
@@ -584,6 +617,27 @@ void GLESRenderEngine::checkErrors() const { 
    } while (true);

}



bool GLESRenderEngine::supportsProtectedContent() const {

    return GLExtensions::getInstance().hasProtectedContent() &&

            mProtectedEGLContext != EGL_NO_CONTEXT;

}



bool GLESRenderEngine::useProtectedContext(bool useProtectedContext) {

    if (useProtectedContext == mInProtectedContext) {

        return true;

    }

    if (useProtectedContext && mProtectedEGLContext == EGL_NO_CONTEXT) {

        return false;

    }

    const EGLSurface surface = useProtectedContext ? mProtectedDummySurface : mDummySurface;

    const EGLContext context = useProtectedContext ? mProtectedEGLContext : mEGLContext;

    const bool success = eglMakeCurrent(mEGLDisplay, surface, surface, context) == EGL_TRUE;

    if (success) {

        mInProtectedContext = useProtectedContext;

    }

    return success;

}



status_t GLESRenderEngine::drawLayers(const DisplaySettings& /*settings*/,

                                      const std::vector<LayerSettings>& /*layers*/,

                                      ANativeWindowBuffer* const /*buffer*/,
@@ -822,7 +876,9 @@ void GLESRenderEngine::drawMesh(const Mesh& mesh) { 
                    Description::dataSpaceToTransferFunction(outputTransfer);

        }



        ProgramCache::getInstance().useProgram(managedState);

        ProgramCache::getInstance().useProgram(mInProtectedContext ? mProtectedEGLContext

                                                                   : mEGLContext,

                                               managedState);



        glDrawArrays(mesh.getPrimitive(), 0, mesh.getVertexCount());
@@ -833,7 +889,9 @@ void GLESRenderEngine::drawMesh(const Mesh& mesh) { 
            writePPM(out.str().c_str(), mVpWidth, mVpHeight);

        }

    } else {

        ProgramCache::getInstance().useProgram(mState);

        ProgramCache::getInstance().useProgram(mInProtectedContext ? mProtectedEGLContext

                                                                   : mEGLContext,

                                               mState);



        glDrawArrays(mesh.getPrimitive(), 0, mesh.getVertexCount());

    }
@@ -857,17 +915,18 @@ size_t GLESRenderEngine::getMaxViewportDims() const { 


void GLESRenderEngine::dump(std::string& result) {

    const GLExtensions& extensions = GLExtensions::getInstance();

    ProgramCache& cache = ProgramCache::getInstance();



    StringAppendF(&result, "EGL implementation : %s\n", extensions.getEGLVersion());

    StringAppendF(&result, "%s\n", extensions.getEGLExtensions());



    StringAppendF(&result, "GLES: %s, %s, %s\n", extensions.getVendor(), extensions.getRenderer(),

                  extensions.getVersion());

    StringAppendF(&result, "%s\n", extensions.getExtensions());



    StringAppendF(&result, "RenderEngine program cache size: %zu\n",

                  ProgramCache::getInstance().getSize());



    StringAppendF(&result, "RenderEngine is in protected context : %d\n", mInProtectedContext);

    StringAppendF(&result, "RenderEngine program cache size for unprotected context: %zu\n",

                  cache.getSize(mEGLContext));

    StringAppendF(&result, "RenderEngine program cache size for protected context: %zu\n",

                  cache.getSize(mProtectedEGLContext));

    StringAppendF(&result, "RenderEngine last dataspace conversion: (%s) to (%s)\n",

                  dataspaceDetails(static_cast<android_dataspace>(mDataSpace)).c_str(),

                  dataspaceDetails(static_cast<android_dataspace>(mOutputDataSpace)).c_str());
@@ -892,7 +951,8 @@ GLESRenderEngine::GlesVersion GLESRenderEngine::parseGlesVersion(const char* str 
}



EGLContext GLESRenderEngine::createEglContext(EGLDisplay display, EGLConfig config,

                                              EGLContext shareContext, bool useContextPriority) {

                                              EGLContext shareContext, bool useContextPriority,

                                              Protection protection) {

    EGLint renderableType = 0;

    if (config == EGL_NO_CONFIG) {

        renderableType = EGL_OPENGL_ES3_BIT;
@@ -911,13 +971,17 @@ EGLContext GLESRenderEngine::createEglContext(EGLDisplay display, EGLConfig conf 
    }



    std::vector<EGLint> contextAttributes;

    contextAttributes.reserve(5);

    contextAttributes.reserve(7);

    contextAttributes.push_back(EGL_CONTEXT_CLIENT_VERSION);

    contextAttributes.push_back(contextClientVersion);

    if (useContextPriority) {

        contextAttributes.push_back(EGL_CONTEXT_PRIORITY_LEVEL_IMG);

        contextAttributes.push_back(EGL_CONTEXT_PRIORITY_HIGH_IMG);

    }

    if (protection == Protection::PROTECTED) {

        contextAttributes.push_back(EGL_PROTECTED_CONTENT_EXT);

        contextAttributes.push_back(EGL_TRUE);

    }

    contextAttributes.push_back(EGL_NONE);



    EGLContext context = eglCreateContext(display, config, shareContext, contextAttributes.data());
@@ -938,17 +1002,21 @@ EGLContext GLESRenderEngine::createEglContext(EGLDisplay display, EGLConfig conf 
}



EGLSurface GLESRenderEngine::createDummyEglPbufferSurface(EGLDisplay display, EGLConfig config,

                                                          int hwcFormat) {

                                                          int hwcFormat, Protection protection) {

    EGLConfig dummyConfig = config;

    if (dummyConfig == EGL_NO_CONFIG) {

        dummyConfig = chooseEglConfig(display, hwcFormat, /*logConfig*/ true);

    }

    std::vector<EGLint> attributes;

    attributes.reserve(5);

    attributes.reserve(7);

    attributes.push_back(EGL_WIDTH);

    attributes.push_back(1);

    attributes.push_back(EGL_HEIGHT);

    attributes.push_back(1);

    if (protection == Protection::PROTECTED) {

        attributes.push_back(EGL_PROTECTED_CONTENT_EXT);

        attributes.push_back(EGL_TRUE);

    }

    attributes.push_back(EGL_NONE);



    return eglCreatePbufferSurface(display, dummyConfig, attributes.data());

libs/renderengine/gl/GLESRenderEngine.h

+11 −4
Original line number Diff line number Diff line
@@ -45,7 +45,8 @@ public: 
    static EGLConfig chooseEglConfig(EGLDisplay display, int format, bool logConfig);



    GLESRenderEngine(uint32_t featureFlags, // See RenderEngine::FeatureFlag

                     EGLDisplay display, EGLConfig config, EGLContext ctxt, EGLSurface dummy);

                     EGLDisplay display, EGLConfig config, EGLContext ctxt, EGLSurface dummy,

                     EGLContext protectedContext, EGLSurface protectedDummy);

    ~GLESRenderEngine() override;



    std::unique_ptr<Framebuffer> createFramebuffer() override;
@@ -68,6 +69,9 @@ public: 
    void unbindFrameBuffer(Framebuffer* framebuffer) override;

    void checkErrors() const override;



    bool isProtected() const override { return mInProtectedContext; }

    bool supportsProtectedContent() const override;

    bool useProtectedContext(bool useProtectedContext) override;

    status_t drawLayers(const DisplaySettings& settings, const std::vector<LayerSettings>& layers,

                        ANativeWindowBuffer* const buffer,

                        base::unique_fd* displayFence) const override;
@@ -112,20 +116,22 @@ private: 


    static GlesVersion parseGlesVersion(const char* str);

    static EGLContext createEglContext(EGLDisplay display, EGLConfig config,

                                       EGLContext shareContext, bool useContextPriority);

                                       EGLContext shareContext, bool useContextPriority,

                                       Protection protection);

    static EGLSurface createDummyEglPbufferSurface(EGLDisplay display, EGLConfig config,

                                                   int hwcFormat);

                                                   int hwcFormat, Protection protection);



    // A data space is considered HDR data space if it has BT2020 color space

    // with PQ or HLG transfer function.

    bool isHdrDataSpace(const ui::Dataspace dataSpace) const;

    bool needsXYZTransformMatrix() const;

    void setEGLHandles(EGLDisplay display, EGLConfig config, EGLContext ctxt, EGLSurface dummy);



    EGLDisplay mEGLDisplay;

    EGLConfig mEGLConfig;

    EGLContext mEGLContext;

    EGLSurface mDummySurface;

    EGLContext mProtectedEGLContext;

    EGLSurface mProtectedDummySurface;

    GLuint mProtectedTexName;

    GLint mMaxViewportDims[2];

    GLint mMaxTextureSize;
@@ -146,6 +152,7 @@ private: 
    mat4 mBt2020ToSrgb;

    mat4 mBt2020ToDisplayP3;



    bool mInProtectedContext = false;

    int32_t mFboHeight = 0;



    // Current dataspace of layer being rendered

libs/renderengine/gl/GLFramebuffer.cpp

+7 −2
Original line number Diff line number Diff line
@@ -39,7 +39,7 @@ GLFramebuffer::~GLFramebuffer() { 
    eglDestroyImageKHR(mEGLDisplay, mEGLImage);

}



bool GLFramebuffer::setNativeWindowBuffer(ANativeWindowBuffer* nativeBuffer) {

bool GLFramebuffer::setNativeWindowBuffer(ANativeWindowBuffer* nativeBuffer, bool isProtected) {

    if (mEGLImage != EGL_NO_IMAGE_KHR) {

        eglDestroyImageKHR(mEGLDisplay, mEGLImage);

        mEGLImage = EGL_NO_IMAGE_KHR;
@@ -48,8 +48,13 @@ bool GLFramebuffer::setNativeWindowBuffer(ANativeWindowBuffer* nativeBuffer) { 
    }



    if (nativeBuffer) {

        EGLint attributes[] = {

                isProtected ? EGL_PROTECTED_CONTENT_EXT : EGL_NONE,

                isProtected ? EGL_TRUE : EGL_NONE,

                EGL_NONE,

        };

        mEGLImage = eglCreateImageKHR(mEGLDisplay, EGL_NO_CONTEXT, EGL_NATIVE_BUFFER_ANDROID,

                                      nativeBuffer, nullptr);

                                      nativeBuffer, attributes);

        if (mEGLImage == EGL_NO_IMAGE_KHR) {

            return false;

        }

libs/renderengine/gl/GLFramebuffer.h

+1 −1
Original line number Diff line number Diff line
@@ -35,7 +35,7 @@ public: 
    explicit GLFramebuffer(const GLESRenderEngine& engine);

    ~GLFramebuffer() override;



    bool setNativeWindowBuffer(ANativeWindowBuffer* nativeBuffer) override;

    bool setNativeWindowBuffer(ANativeWindowBuffer* nativeBuffer, bool isProtected) override;

    EGLImageKHR getEGLImage() const { return mEGLImage; }

    uint32_t getTextureName() const { return mTextureName; }

    uint32_t getFramebufferName() const { return mFramebufferName; }

libs/renderengine/gl/GLImage.cpp

+1 −0
Original line number Diff line number Diff line
@@ -65,6 +65,7 @@ bool GLImage::setNativeWindowBuffer(ANativeWindowBuffer* buffer, bool isProtecte 
            ALOGE("failed to create EGLImage: %#x", eglGetError());

            return false;

        }

        mProtected = isProtected;

    }



    return true;