DisplayNULL.cpp

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Author : Jonah Ryan-Davis
Date : 2021-02-04 16:40:36
Hash : 4968f6f2
Message : Move getRendererDescription from ContextImpl to DisplayImpl The other backend description strings are in DisplayImpl. This will help with caching the result of glGetString in the GL backend. Also Update the getters to not be const in order to allow caching. Bug: chromium:1173672 Change-Id: I43df35688762b23429f47f169c04482cf4cd089a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2676881 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>

src/libANGLE/renderer/null/DisplayNULL.cpp

//
// Copyright 2016 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.
//
// DisplayNULL.cpp:
//    Implements the class methods for DisplayNULL.
//

#include "libANGLE/renderer/null/DisplayNULL.h"

#include "common/debug.h"

#include "libANGLE/Display.h"
#include "libANGLE/renderer/null/ContextNULL.h"
#include "libANGLE/renderer/null/DeviceNULL.h"
#include "libANGLE/renderer/null/ImageNULL.h"
#include "libANGLE/renderer/null/SurfaceNULL.h"

namespace rx
{

DisplayNULL::DisplayNULL(const egl::DisplayState &state) : DisplayImpl(state) {}

DisplayNULL::~DisplayNULL() {}

egl::Error DisplayNULL::initialize(egl::Display *display)
{
    constexpr size_t kMaxTotalAllocationSize = 1 << 28;  // 256MB
    mAllocationTracker.reset(new AllocationTrackerNULL(kMaxTotalAllocationSize));

    return egl::NoError();
}

void DisplayNULL::terminate()
{
    mAllocationTracker.reset();
}

egl::Error DisplayNULL::makeCurrent(egl::Display *display,
                                    egl::Surface *drawSurface,
                                    egl::Surface *readSurface,
                                    gl::Context *context)
{
    // Ensure that the correct global DebugAnnotator is installed when the end2end tests change
    // the ANGLE back-end (done frequently).
    display->setGlobalDebugAnnotator();

    return egl::NoError();
}

egl::ConfigSet DisplayNULL::generateConfigs()
{
    egl::Config config;
    config.renderTargetFormat    = GL_RGBA8;
    config.depthStencilFormat    = GL_DEPTH24_STENCIL8;
    config.bufferSize            = 32;
    config.redSize               = 8;
    config.greenSize             = 8;
    config.blueSize              = 8;
    config.alphaSize             = 8;
    config.alphaMaskSize         = 0;
    config.bindToTextureRGB      = EGL_TRUE;
    config.bindToTextureRGBA     = EGL_TRUE;
    config.colorBufferType       = EGL_RGB_BUFFER;
    config.configCaveat          = EGL_NONE;
    config.conformant            = EGL_OPENGL_ES2_BIT | EGL_OPENGL_ES3_BIT;
    config.depthSize             = 24;
    config.level                 = 0;
    config.matchNativePixmap     = EGL_NONE;
    config.maxPBufferWidth       = 0;
    config.maxPBufferHeight      = 0;
    config.maxPBufferPixels      = 0;
    config.maxSwapInterval       = 1;
    config.minSwapInterval       = 1;
    config.nativeRenderable      = EGL_TRUE;
    config.nativeVisualID        = 0;
    config.nativeVisualType      = EGL_NONE;
    config.renderableType        = EGL_OPENGL_ES2_BIT | EGL_OPENGL_ES3_BIT;
    config.sampleBuffers         = 0;
    config.samples               = 0;
    config.stencilSize           = 8;
    config.surfaceType           = EGL_WINDOW_BIT | EGL_PBUFFER_BIT;
    config.optimalOrientation    = 0;
    config.transparentType       = EGL_NONE;
    config.transparentRedValue   = 0;
    config.transparentGreenValue = 0;
    config.transparentBlueValue  = 0;

    egl::ConfigSet configSet;
    configSet.add(config);
    return configSet;
}

bool DisplayNULL::testDeviceLost()
{
    return false;
}

egl::Error DisplayNULL::restoreLostDevice(const egl::Display *display)
{
    return egl::NoError();
}

bool DisplayNULL::isValidNativeWindow(EGLNativeWindowType window) const
{
    return true;
}

std::string DisplayNULL::getRendererDescription()
{
    return "NULL";
}

std::string DisplayNULL::getVendorString()
{
    return "NULL";
}

std::string DisplayNULL::getVersionString()
{
    return std::string();
}

DeviceImpl *DisplayNULL::createDevice()
{
    return new DeviceNULL();
}

egl::Error DisplayNULL::waitClient(const gl::Context *context)
{
    return egl::NoError();
}

egl::Error DisplayNULL::waitNative(const gl::Context *context, EGLint engine)
{
    return egl::NoError();
}

gl::Version DisplayNULL::getMaxSupportedESVersion() const
{
    return gl::Version(3, 2);
}

gl::Version DisplayNULL::getMaxConformantESVersion() const
{
    return getMaxSupportedESVersion();
}

SurfaceImpl *DisplayNULL::createWindowSurface(const egl::SurfaceState &state,
                                              EGLNativeWindowType window,
                                              const egl::AttributeMap &attribs)
{
    return new SurfaceNULL(state);
}

SurfaceImpl *DisplayNULL::createPbufferSurface(const egl::SurfaceState &state,
                                               const egl::AttributeMap &attribs)
{
    return new SurfaceNULL(state);
}

SurfaceImpl *DisplayNULL::createPbufferFromClientBuffer(const egl::SurfaceState &state,
                                                        EGLenum buftype,
                                                        EGLClientBuffer buffer,
                                                        const egl::AttributeMap &attribs)
{
    return new SurfaceNULL(state);
}

SurfaceImpl *DisplayNULL::createPixmapSurface(const egl::SurfaceState &state,
                                              NativePixmapType nativePixmap,
                                              const egl::AttributeMap &attribs)
{
    return new SurfaceNULL(state);
}

ImageImpl *DisplayNULL::createImage(const egl::ImageState &state,
                                    const gl::Context *context,
                                    EGLenum target,
                                    const egl::AttributeMap &attribs)
{
    return new ImageNULL(state);
}

rx::ContextImpl *DisplayNULL::createContext(const gl::State &state,
                                            gl::ErrorSet *errorSet,
                                            const egl::Config *configuration,
                                            const gl::Context *shareContext,
                                            const egl::AttributeMap &attribs)
{
    return new ContextNULL(state, errorSet, mAllocationTracker.get());
}

StreamProducerImpl *DisplayNULL::createStreamProducerD3DTexture(
    egl::Stream::ConsumerType consumerType,
    const egl::AttributeMap &attribs)
{
    UNIMPLEMENTED();
    return nullptr;
}

ShareGroupImpl *DisplayNULL::createShareGroup()
{
    return new ShareGroupNULL();
}

void DisplayNULL::generateExtensions(egl::DisplayExtensions *outExtensions) const
{
    outExtensions->createContextRobustness            = true;
    outExtensions->postSubBuffer                      = true;
    outExtensions->createContext                      = true;
    outExtensions->image                              = true;
    outExtensions->imageBase                          = true;
    outExtensions->glTexture2DImage                   = true;
    outExtensions->glTextureCubemapImage              = true;
    outExtensions->glTexture3DImage                   = true;
    outExtensions->glRenderbufferImage                = true;
    outExtensions->getAllProcAddresses                = true;
    outExtensions->flexibleSurfaceCompatibility       = true;
    outExtensions->directComposition                  = true;
    outExtensions->createContextNoError               = true;
    outExtensions->createContextWebGLCompatibility    = true;
    outExtensions->createContextBindGeneratesResource = true;
    outExtensions->swapBuffersWithDamage              = true;
    outExtensions->pixelFormatFloat                   = true;
    outExtensions->surfacelessContext                 = true;
    outExtensions->displayTextureShareGroup           = true;
    outExtensions->displaySemaphoreShareGroup         = true;
    outExtensions->createContextClientArrays          = true;
    outExtensions->programCacheControl                = true;
    outExtensions->robustResourceInitialization       = true;
}

void DisplayNULL::generateCaps(egl::Caps *outCaps) const
{
    outCaps->textureNPOT = true;
}

}  // namespace rx

kc3-lang/angle/src/libANGLE/renderer/null/DisplayNULL.cpp

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kc3-lang/angle /src/libANGLE/renderer/null/DisplayNULL.cpp