Surface.cpp

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Author : Stuart Morgan
Date : 2019-08-14 12:25:12
Hash : 9d737966
Message : Standardize copyright notices to project style For all "ANGLE Project" copyrights, standardize to the format specified by the style guide. Changes: - "Copyright (c)" and "Copyright(c)" changed to just "Copyright". - Removed the second half of date ranges ("Y1Y1-Y2Y2"->"Y1Y1"). - Fixed a small number of files that had no copyright date using the initial commit year from the version control history. - Fixed one instance of copyright being "The ANGLE Project" rather than "The ANGLE Project Authors" These changes are applied both to the copyright of source file, and where applicable to copyright statements that are generated by templates. BUG=angleproject:3811 Change-Id: I973dd65e4ef9deeba232d5be74c768256a0eb2e5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1754397 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
src/libANGLE/Surface.cpp
//
// Copyright 2002 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//

// Surface.cpp: Implements the egl::Surface class, representing a drawing surface
// such as the client area of a window, including any back buffers.
// Implements EGLSurface and related functionality. [EGL 1.4] section 2.2 page 3.

#include "libANGLE/Surface.h"

#include <EGL/eglext.h>

#include "libANGLE/Config.h"
#include "libANGLE/Context.h"
#include "libANGLE/Display.h"
#include "libANGLE/Framebuffer.h"
#include "libANGLE/Texture.h"
#include "libANGLE/Thread.h"
#include "libANGLE/formatutils.h"
#include "libANGLE/renderer/EGLImplFactory.h"
#include "libANGLE/trace.h"

namespace egl
{

SurfaceState::SurfaceState(const egl::Config *configIn, const AttributeMap &attributesIn)
    : label(nullptr), config(configIn), attributes(attributesIn), timestampsEnabled(false)
{}

SurfaceState::~SurfaceState() = default;

Surface::Surface(EGLint surfaceType,
                 const egl::Config *config,
                 const AttributeMap &attributes,
                 EGLenum buftype)
    : FramebufferAttachmentObject(),
      mState(config, attributes),
      mImplementation(nullptr),
      mRefCount(0),
      mDestroyed(false),
      mType(surfaceType),
      mBuftype(buftype),
      mPostSubBufferRequested(false),
      mLargestPbuffer(false),
      mGLColorspace(EGL_GL_COLORSPACE_LINEAR),
      mVGAlphaFormat(EGL_VG_ALPHA_FORMAT_NONPRE),
      mVGColorspace(EGL_VG_COLORSPACE_sRGB),
      mMipmapTexture(false),
      mMipmapLevel(0),
      mHorizontalResolution(EGL_UNKNOWN),
      mVerticalResolution(EGL_UNKNOWN),
      mMultisampleResolve(EGL_MULTISAMPLE_RESOLVE_DEFAULT),
      mFixedSize(false),
      mFixedWidth(0),
      mFixedHeight(0),
      mTextureFormat(TextureFormat::NoTexture),
      mTextureTarget(EGL_NO_TEXTURE),
      // FIXME: Determine actual pixel aspect ratio
      mPixelAspectRatio(static_cast<EGLint>(1.0 * EGL_DISPLAY_SCALING)),
      mRenderBuffer(EGL_BACK_BUFFER),
      mSwapBehavior(EGL_NONE),
      mOrientation(0),
      mTexture(nullptr),
      mColorFormat(config->renderTargetFormat),
      mDSFormat(config->depthStencilFormat),
      mInitState(gl::InitState::Initialized)
{
    mPostSubBufferRequested =
        (attributes.get(EGL_POST_SUB_BUFFER_SUPPORTED_NV, EGL_FALSE) == EGL_TRUE);
    mFlexibleSurfaceCompatibilityRequested =
        (attributes.get(EGL_FLEXIBLE_SURFACE_COMPATIBILITY_SUPPORTED_ANGLE, EGL_FALSE) == EGL_TRUE);

    if (mType == EGL_PBUFFER_BIT)
    {
        mLargestPbuffer = (attributes.get(EGL_LARGEST_PBUFFER, EGL_FALSE) == EGL_TRUE);
    }

    mGLColorspace =
        static_cast<EGLenum>(attributes.get(EGL_GL_COLORSPACE, EGL_GL_COLORSPACE_LINEAR));
    mVGAlphaFormat =
        static_cast<EGLenum>(attributes.get(EGL_VG_ALPHA_FORMAT, EGL_VG_ALPHA_FORMAT_NONPRE));
    mVGColorspace = static_cast<EGLenum>(attributes.get(EGL_VG_COLORSPACE, EGL_VG_COLORSPACE_sRGB));
    mMipmapTexture = (attributes.get(EGL_MIPMAP_TEXTURE, EGL_FALSE) == EGL_TRUE);

    mDirectComposition = (attributes.get(EGL_DIRECT_COMPOSITION_ANGLE, EGL_FALSE) == EGL_TRUE);

    mRobustResourceInitialization =
        (attributes.get(EGL_ROBUST_RESOURCE_INITIALIZATION_ANGLE, EGL_FALSE) == EGL_TRUE);
    if (mRobustResourceInitialization)
    {
        mInitState = gl::InitState::MayNeedInit;
    }

    mFixedSize = (attributes.get(EGL_FIXED_SIZE_ANGLE, EGL_FALSE) == EGL_TRUE);
    if (mFixedSize)
    {
        mFixedWidth  = static_cast<size_t>(attributes.get(EGL_WIDTH, 0));
        mFixedHeight = static_cast<size_t>(attributes.get(EGL_HEIGHT, 0));
    }

    if (mType != EGL_WINDOW_BIT)
    {
        mTextureFormat = attributes.getAsPackedEnum(EGL_TEXTURE_FORMAT, TextureFormat::NoTexture);
        mTextureTarget = static_cast<EGLenum>(attributes.get(EGL_TEXTURE_TARGET, EGL_NO_TEXTURE));
    }

    mOrientation = static_cast<EGLint>(attributes.get(EGL_SURFACE_ORIENTATION_ANGLE, 0));
}

Surface::~Surface() {}

rx::FramebufferAttachmentObjectImpl *Surface::getAttachmentImpl() const
{
    return mImplementation;
}

Error Surface::destroyImpl(const Display *display)
{
    if (mImplementation)
    {
        mImplementation->destroy(display);
    }

    ASSERT(!mTexture);

    SafeDelete(mImplementation);

    delete this;
    return NoError();
}

void Surface::postSwap(const gl::Context *context)
{
    if (mRobustResourceInitialization && mSwapBehavior != EGL_BUFFER_PRESERVED)
    {
        mInitState = gl::InitState::MayNeedInit;
        onStateChange(angle::SubjectMessage::SubjectChanged);
    }

    context->onPostSwap();
}

Error Surface::initialize(const Display *display)
{
    ANGLE_TRY(mImplementation->initialize(display));

    // Initialized here since impl is nullptr in the constructor.
    // Must happen after implementation initialize for Android.
    mSwapBehavior = mImplementation->getSwapBehavior();

    if (mBuftype == EGL_IOSURFACE_ANGLE)
    {
        GLenum internalFormat =
            static_cast<GLenum>(mState.attributes.get(EGL_TEXTURE_INTERNAL_FORMAT_ANGLE));
        GLenum type  = static_cast<GLenum>(mState.attributes.get(EGL_TEXTURE_TYPE_ANGLE));
        mColorFormat = gl::Format(internalFormat, type);
    }
    if (mBuftype == EGL_D3D_TEXTURE_ANGLE)
    {
        const angle::Format *colorFormat = mImplementation->getD3DTextureColorFormat();
        ASSERT(colorFormat != nullptr);
        GLenum internalFormat = colorFormat->fboImplementationInternalFormat;
        mColorFormat          = gl::Format(internalFormat, colorFormat->componentType);
        mGLColorspace         = EGL_GL_COLORSPACE_LINEAR;
        if (mColorFormat.info->colorEncoding == GL_SRGB)
        {
            mGLColorspace = EGL_GL_COLORSPACE_SRGB;
        }
    }

    if (mType == EGL_WINDOW_BIT && display->getExtensions().getFrameTimestamps)
    {
        mState.supportedCompositorTimings = mImplementation->getSupportedCompositorTimings();
        mState.supportedTimestamps        = mImplementation->getSupportedTimestamps();
    }

    return NoError();
}

Error Surface::makeCurrent(const gl::Context *context)
{
    ANGLE_TRY(mImplementation->makeCurrent(context));

    mRefCount++;
    return NoError();
}

Error Surface::unMakeCurrent(const gl::Context *context)
{
    ANGLE_TRY(mImplementation->unMakeCurrent(context));
    return releaseRef(context->getDisplay());
}

Error Surface::releaseRef(const Display *display)
{
    ASSERT(mRefCount > 0);
    mRefCount--;
    if (mRefCount == 0 && mDestroyed)
    {
        ASSERT(display);
        return destroyImpl(display);
    }

    return NoError();
}

Error Surface::onDestroy(const Display *display)
{
    mDestroyed = true;
    if (mRefCount == 0)
    {
        return destroyImpl(display);
    }
    return NoError();
}

void Surface::setLabel(EGLLabelKHR label)
{
    mState.label = label;
}

EGLLabelKHR Surface::getLabel() const
{
    return mState.label;
}

EGLint Surface::getType() const
{
    return mType;
}

Error Surface::swap(const gl::Context *context)
{
    ANGLE_TRACE_EVENT0("gpu.angle", "egl::Surface::swap");

    ANGLE_TRY(mImplementation->swap(context));
    postSwap(context);
    return NoError();
}

Error Surface::swapWithDamage(const gl::Context *context, EGLint *rects, EGLint n_rects)
{
    ANGLE_TRY(mImplementation->swapWithDamage(context, rects, n_rects));
    postSwap(context);
    return NoError();
}

Error Surface::postSubBuffer(const gl::Context *context,
                             EGLint x,
                             EGLint y,
                             EGLint width,
                             EGLint height)
{
    if (width == 0 || height == 0)
    {
        return egl::NoError();
    }

    return mImplementation->postSubBuffer(context, x, y, width, height);
}

Error Surface::setPresentationTime(EGLnsecsANDROID time)
{
    return mImplementation->setPresentationTime(time);
}

Error Surface::querySurfacePointerANGLE(EGLint attribute, void **value)
{
    return mImplementation->querySurfacePointerANGLE(attribute, value);
}

EGLint Surface::isPostSubBufferSupported() const
{
    return mPostSubBufferRequested && mImplementation->isPostSubBufferSupported();
}

void Surface::setSwapInterval(EGLint interval)
{
    mImplementation->setSwapInterval(interval);
}

void Surface::setMipmapLevel(EGLint level)
{
    // Level is set but ignored
    UNIMPLEMENTED();
    mMipmapLevel = level;
}

void Surface::setMultisampleResolve(EGLenum resolve)
{
    // Behaviour is set but ignored
    UNIMPLEMENTED();
    mMultisampleResolve = resolve;
}

void Surface::setSwapBehavior(EGLenum behavior)
{
    // Behaviour is set but ignored
    UNIMPLEMENTED();
    mSwapBehavior = behavior;
}

void Surface::setFixedWidth(EGLint width)
{
    mFixedWidth = width;
    mImplementation->setFixedWidth(width);
}

void Surface::setFixedHeight(EGLint height)
{
    mFixedHeight = height;
    mImplementation->setFixedHeight(height);
}

const Config *Surface::getConfig() const
{
    return mState.config;
}

EGLint Surface::getPixelAspectRatio() const
{
    return mPixelAspectRatio;
}

EGLenum Surface::getRenderBuffer() const
{
    return mRenderBuffer;
}

EGLenum Surface::getSwapBehavior() const
{
    return mSwapBehavior;
}

TextureFormat Surface::getTextureFormat() const
{
    return mTextureFormat;
}

EGLenum Surface::getTextureTarget() const
{
    return mTextureTarget;
}

bool Surface::getLargestPbuffer() const
{
    return mLargestPbuffer;
}

EGLenum Surface::getGLColorspace() const
{
    return mGLColorspace;
}

EGLenum Surface::getVGAlphaFormat() const
{
    return mVGAlphaFormat;
}

EGLenum Surface::getVGColorspace() const
{
    return mVGColorspace;
}

bool Surface::getMipmapTexture() const
{
    return mMipmapTexture;
}

EGLint Surface::getMipmapLevel() const
{
    return mMipmapLevel;
}

EGLint Surface::getHorizontalResolution() const
{
    return mHorizontalResolution;
}

EGLint Surface::getVerticalResolution() const
{
    return mVerticalResolution;
}

EGLenum Surface::getMultisampleResolve() const
{
    return mMultisampleResolve;
}

EGLint Surface::isFixedSize() const
{
    return mFixedSize;
}

EGLint Surface::getWidth() const
{
    return mFixedSize ? static_cast<EGLint>(mFixedWidth) : mImplementation->getWidth();
}

EGLint Surface::getHeight() const
{
    return mFixedSize ? static_cast<EGLint>(mFixedHeight) : mImplementation->getHeight();
}

Error Surface::bindTexImage(gl::Context *context, gl::Texture *texture, EGLint buffer)
{
    ASSERT(!mTexture);
    ANGLE_TRY(mImplementation->bindTexImage(context, texture, buffer));

    if (texture->bindTexImageFromSurface(context, this) == angle::Result::Stop)
    {
        return Error(EGL_BAD_SURFACE);
    }
    mTexture = texture;
    mRefCount++;

    return NoError();
}

Error Surface::releaseTexImage(const gl::Context *context, EGLint buffer)
{
    ASSERT(context);

    ANGLE_TRY(mImplementation->releaseTexImage(context, buffer));

    ASSERT(mTexture);
    ANGLE_TRY(ResultToEGL(mTexture->releaseTexImageFromSurface(context)));

    return releaseTexImageFromTexture(context);
}

Error Surface::getSyncValues(EGLuint64KHR *ust, EGLuint64KHR *msc, EGLuint64KHR *sbc)
{
    return mImplementation->getSyncValues(ust, msc, sbc);
}

Error Surface::releaseTexImageFromTexture(const gl::Context *context)
{
    ASSERT(mTexture);
    mTexture = nullptr;
    return releaseRef(context->getDisplay());
}

gl::Extents Surface::getAttachmentSize(const gl::ImageIndex & /*target*/) const
{
    return gl::Extents(getWidth(), getHeight(), 1);
}

gl::Format Surface::getAttachmentFormat(GLenum binding, const gl::ImageIndex &target) const
{
    return (binding == GL_BACK ? mColorFormat : mDSFormat);
}

GLsizei Surface::getAttachmentSamples(const gl::ImageIndex &target) const
{
    return getConfig()->samples;
}

bool Surface::isRenderable(const gl::Context *context,
                           GLenum binding,
                           const gl::ImageIndex &imageIndex) const
{
    return true;
}

GLuint Surface::getId() const
{
    UNREACHABLE();
    return 0;
}

gl::Framebuffer *Surface::createDefaultFramebuffer(const gl::Context *context)
{
    return new gl::Framebuffer(context, this);
}

gl::InitState Surface::initState(const gl::ImageIndex & /*imageIndex*/) const
{
    return mInitState;
}

void Surface::setInitState(const gl::ImageIndex & /*imageIndex*/, gl::InitState initState)
{
    mInitState = initState;
}

void Surface::setTimestampsEnabled(bool enabled)
{
    mImplementation->setTimestampsEnabled(enabled);
    mState.timestampsEnabled = enabled;
}

bool Surface::isTimestampsEnabled() const
{
    return mState.timestampsEnabled;
}

const SupportedCompositorTiming &Surface::getSupportedCompositorTimings() const
{
    return mState.supportedCompositorTimings;
}

Error Surface::getCompositorTiming(EGLint numTimestamps,
                                   const EGLint *names,
                                   EGLnsecsANDROID *values) const
{
    return mImplementation->getCompositorTiming(numTimestamps, names, values);
}

Error Surface::getNextFrameId(EGLuint64KHR *frameId) const
{
    return mImplementation->getNextFrameId(frameId);
}

const SupportedTimestamps &Surface::getSupportedTimestamps() const
{
    return mState.supportedTimestamps;
}

Error Surface::getFrameTimestamps(EGLuint64KHR frameId,
                                  EGLint numTimestamps,
                                  const EGLint *timestamps,
                                  EGLnsecsANDROID *values) const
{
    return mImplementation->getFrameTimestamps(frameId, numTimestamps, timestamps, values);
}

WindowSurface::WindowSurface(rx::EGLImplFactory *implFactory,
                             const egl::Config *config,
                             EGLNativeWindowType window,
                             const AttributeMap &attribs)
    : Surface(EGL_WINDOW_BIT, config, attribs)
{
    mImplementation = implFactory->createWindowSurface(mState, window, attribs);
}

WindowSurface::~WindowSurface() {}

PbufferSurface::PbufferSurface(rx::EGLImplFactory *implFactory,
                               const Config *config,
                               const AttributeMap &attribs)
    : Surface(EGL_PBUFFER_BIT, config, attribs)
{
    mImplementation = implFactory->createPbufferSurface(mState, attribs);
}

PbufferSurface::PbufferSurface(rx::EGLImplFactory *implFactory,
                               const Config *config,
                               EGLenum buftype,
                               EGLClientBuffer clientBuffer,
                               const AttributeMap &attribs)
    : Surface(EGL_PBUFFER_BIT, config, attribs, buftype)
{
    mImplementation =
        implFactory->createPbufferFromClientBuffer(mState, buftype, clientBuffer, attribs);
}

PbufferSurface::~PbufferSurface() {}

PixmapSurface::PixmapSurface(rx::EGLImplFactory *implFactory,
                             const Config *config,
                             NativePixmapType nativePixmap,
                             const AttributeMap &attribs)
    : Surface(EGL_PIXMAP_BIT, config, attribs)
{
    mImplementation = implFactory->createPixmapSurface(mState, nativePixmap, attribs);
}

PixmapSurface::~PixmapSurface() {}

// SurfaceDeleter implementation.

SurfaceDeleter::SurfaceDeleter(const Display *display) : mDisplay(display) {}

SurfaceDeleter::~SurfaceDeleter() {}

void SurfaceDeleter::operator()(Surface *surface)
{
    ANGLE_SWALLOW_ERR(surface->onDestroy(mDisplay));
}

}  // namespace egl
kc3-lang/angle/src/libANGLE/Surface.cpp

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kc3-lang/angle /src/libANGLE/Surface.cpp
