DisplayImpl.h - mozsearch

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//

// Copyright 2014 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.

//

// DisplayImpl.h: Implementation methods of egl::Display

#ifndef LIBANGLE_RENDERER_DISPLAYIMPL_H_

#define LIBANGLE_RENDERER_DISPLAYIMPL_H_

#include "common/Optional.h"

#include "common/angleutils.h"

#include "libANGLE/Caps.h"

#include "libANGLE/Config.h"

#include "libANGLE/Error.h"

#include "libANGLE/Observer.h"

#include "libANGLE/Stream.h"

#include "libANGLE/Version.h"

#include "libANGLE/renderer/EGLImplFactory.h"

#include "platform/Feature.h"

#include <set>

#include <vector>

namespace angle

struct FrontendFeatures;

}  // namespace angle

namespace egl

class AttributeMap;

class BlobCache;

class Display;

struct DisplayState;

struct Config;

class Surface;

class ImageSibling;

class Thread;

}  // namespace egl

namespace gl

class Context;

}  // namespace gl

namespace rx

class SurfaceImpl;

class ImageImpl;

struct ConfigDesc;

class DeviceImpl;

class StreamProducerImpl;

class ShareGroupImpl : angle::NonCopyable

  public:

    ShareGroupImpl() : mAnyContextWithRobustness(false) {}

    virtual ~ShareGroupImpl() {}

    virtual void onDestroy(const egl::Display *display) {}

    void onRobustContextAdd() { mAnyContextWithRobustness = true; }

    bool hasAnyContextWithRobustness() const { return mAnyContextWithRobustness; }

  private:

    // Whether any context in the share group has robustness enabled.  If any context in the share

    // group is robust, any program created in any context of the share group must have robustness

    // enabled.  This is because programs are shared between the share group contexts.

    bool mAnyContextWithRobustness;

};

class DisplayImpl : public EGLImplFactory, public angle::Subject

  public:

    DisplayImpl(const egl::DisplayState &state);

    ~DisplayImpl() override;

    virtual egl::Error initialize(egl::Display *display) = 0;

    virtual void terminate()                             = 0;

    virtual egl::Error prepareForCall();

    virtual egl::Error releaseThread();

    virtual egl::Error makeCurrent(egl::Display *display,

                                   egl::Surface *drawSurface,

                                   egl::Surface *readSurface,

                                   gl::Context *context) = 0;

    virtual egl::ConfigSet generateConfigs() = 0;

    virtual bool testDeviceLost()                                     = 0;

    virtual egl::Error restoreLostDevice(const egl::Display *display) = 0;

    virtual bool isValidNativeWindow(EGLNativeWindowType window) const = 0;

    virtual egl::Error validateClientBuffer(const egl::Config *configuration,

                                            EGLenum buftype,

                                            EGLClientBuffer clientBuffer,

                                            const egl::AttributeMap &attribs) const;

    virtual egl::Error validateImageClientBuffer(const gl::Context *context,

                                                 EGLenum target,

                                                 EGLClientBuffer clientBuffer,

                                                 const egl::AttributeMap &attribs) const;

    virtual egl::Error validatePixmap(const egl::Config *config,

                                      EGLNativePixmapType pixmap,

                                      const egl::AttributeMap &attributes) const;

    virtual std::string getRendererDescription()                  = 0;

    virtual std::string getVendorString()                         = 0;

    virtual std::string getVersionString(bool includeFullVersion) = 0;

    virtual DeviceImpl *createDevice();

    virtual egl::Error waitClient(const gl::Context *context)                = 0;

    virtual egl::Error waitNative(const gl::Context *context, EGLint engine) = 0;

    virtual gl::Version getMaxSupportedESVersion() const                     = 0;

    virtual gl::Version getMaxConformantESVersion() const                    = 0;

    // If desktop GL is not supported in any capacity for a given backend, this returns None.

    virtual Optional<gl::Version> getMaxSupportedDesktopVersion() const = 0;

    const egl::Caps &getCaps() const;

    virtual void setBlobCacheFuncs(EGLSetBlobFuncANDROID set, EGLGetBlobFuncANDROID get) {}

    const egl::DisplayExtensions &getExtensions() const;

    void setBlobCache(egl::BlobCache *blobCache) { mBlobCache = blobCache; }

    egl::BlobCache *getBlobCache() const { return mBlobCache; }

    virtual void initializeFrontendFeatures(angle::FrontendFeatures *features) const {}

    virtual void populateFeatureList(angle::FeatureList *features) = 0;

    const egl::DisplayState &getState() const { return mState; }

    virtual egl::Error handleGPUSwitch();

    virtual egl::Error forceGPUSwitch(EGLint gpuIDHigh, EGLint gpuIDLow);

    virtual bool isX11() const;

    virtual bool isWayland() const;

    virtual bool isGBM() const;

    virtual bool supportsDmaBufFormat(EGLint format) const;

    virtual egl::Error queryDmaBufFormats(EGLint max_formats, EGLint *formats, EGLint *num_formats);

    virtual egl::Error queryDmaBufModifiers(EGLint format,

                                            EGLint max_modifiers,

                                            EGLuint64KHR *modifiers,

                                            EGLBoolean *external_only,

                                            EGLint *num_modifiers);

    GLuint getNextSurfaceID() override;

  protected:

    const egl::DisplayState &mState;

  private:

    virtual void generateExtensions(egl::DisplayExtensions *outExtensions) const = 0;

    virtual void generateCaps(egl::Caps *outCaps) const                          = 0;

    mutable bool mExtensionsInitialized;

    mutable egl::DisplayExtensions mExtensions;

    mutable bool mCapsInitialized;

    mutable egl::Caps mCaps;

    egl::BlobCache *mBlobCache;

    rx::AtomicSerialFactory mNextSurfaceID;

};

}  // namespace rx

#endif  // LIBANGLE_RENDERER_DISPLAYIMPL_H_