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//
// Copyright (c) 2002-2013 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.
//
// Display.h: Defines the egl::Display class, representing the abstract
// display on which graphics are drawn. Implements EGLDisplay.
// [EGL 1.4] section 2.1.2 page 3.
#ifndef LIBANGLE_DISPLAY_H_
#define LIBANGLE_DISPLAY_H_
#include <set>
#include <vector>
#include "libANGLE/AttributeMap.h"
#include "libANGLE/Caps.h"
#include "libANGLE/Config.h"
#include "libANGLE/Error.h"
#include "libANGLE/LoggingAnnotator.h"
#include "libANGLE/MemoryProgramCache.h"
#include "libANGLE/Version.h"
namespace gl
{
class Context;
class TextureManager;
}
namespace rx
{
class DisplayImpl;
}
namespace egl
{
class Device;
class Image;
class Surface;
class Stream;
class Thread;
using SurfaceSet = std::set<Surface *>;
struct DisplayState final : private angle::NonCopyable
{
DisplayState();
~DisplayState();
SurfaceSet surfaceSet;
};
// Constant coded here as a sanity limit.
constexpr EGLAttrib kProgramCacheSizeAbsoluteMax = 0x4000000;
class Display final : angle::NonCopyable
{
public:
~Display();
Error initialize();
Error terminate();
static Display *GetDisplayFromDevice(Device *device, const AttributeMap &attribMap);
static Display *GetDisplayFromNativeDisplay(EGLNativeDisplayType nativeDisplay,
const AttributeMap &attribMap);
static void CleanupDisplays();
static const ClientExtensions &GetClientExtensions();
static const std::string &GetClientExtensionString();
std::vector<const Config *> getConfigs(const AttributeMap &attribs) const;
Error createWindowSurface(const Config *configuration,
EGLNativeWindowType window,
const AttributeMap &attribs,
Surface **outSurface);
Error createPbufferSurface(const Config *configuration,
const AttributeMap &attribs,
Surface **outSurface);
Error createPbufferFromClientBuffer(const Config *configuration,
EGLenum buftype,
EGLClientBuffer clientBuffer,
const AttributeMap &attribs,
Surface **outSurface);
Error createPixmapSurface(const Config *configuration,
NativePixmapType nativePixmap,
const AttributeMap &attribs,
Surface **outSurface);
Error createImage(const gl::Context *context,
EGLenum target,
EGLClientBuffer buffer,
const AttributeMap &attribs,
Image **outImage);
Error createStream(const AttributeMap &attribs, Stream **outStream);
Error createContext(const Config *configuration,
gl::Context *shareContext,
const AttributeMap &attribs,
gl::Context **outContext);
Error makeCurrent(Surface *drawSurface, Surface *readSurface, gl::Context *context);
Error destroySurface(Surface *surface);
void destroyImage(Image *image);
void destroyStream(Stream *stream);
Error destroyContext(gl::Context *context);
bool isInitialized() const;
bool isValidConfig(const Config *config) const;
bool isValidContext(const gl::Context *context) const;
bool isValidSurface(const Surface *surface) const;
bool isValidImage(const Image *image) const;
bool isValidStream(const Stream *stream) const;
bool isValidNativeWindow(EGLNativeWindowType window) const;
Error validateClientBuffer(const Config *configuration,
EGLenum buftype,
EGLClientBuffer clientBuffer,
const AttributeMap &attribs);
static bool isValidDisplay(const Display *display);
static bool isValidNativeDisplay(EGLNativeDisplayType display);
static bool hasExistingWindowSurface(EGLNativeWindowType window);
bool isDeviceLost() const;
bool testDeviceLost();
void notifyDeviceLost();
Error waitClient(const gl::Context *context) const;
Error waitNative(const gl::Context *context, EGLint engine) const;
const Caps &getCaps() const;
const DisplayExtensions &getExtensions() const;
const std::string &getExtensionString() const;
const std::string &getVendorString() const;
EGLint programCacheGetAttrib(EGLenum attrib) const;
Error programCacheQuery(EGLint index,
void *key,
EGLint *keysize,
void *binary,
EGLint *binarysize);
Error programCachePopulate(const void *key,
EGLint keysize,
const void *binary,
EGLint binarysize);
EGLint programCacheResize(EGLint limit, EGLenum mode);
const AttributeMap &getAttributeMap() const { return mAttributeMap; }
EGLNativeDisplayType getNativeDisplayId() const { return mDisplayId; }
rx::DisplayImpl *getImplementation() const { return mImplementation; }
Device *getDevice() const;
EGLenum getPlatform() const { return mPlatform; }
gl::Version getMaxSupportedESVersion() const;
const DisplayState &getState() const { return mState; }
gl::Context *getProxyContext() const { return mProxyContext.get(); }
private:
Display(EGLenum platform, EGLNativeDisplayType displayId, Device *eglDevice);
void setAttributes(rx::DisplayImpl *impl, const AttributeMap &attribMap);
Error restoreLostDevice();
void initDisplayExtensions();
void initVendorString();
DisplayState mState;
rx::DisplayImpl *mImplementation;
EGLNativeDisplayType mDisplayId;
AttributeMap mAttributeMap;
ConfigSet mConfigSet;
typedef std::set<gl::Context*> ContextSet;
ContextSet mContextSet;
typedef std::set<Image *> ImageSet;
ImageSet mImageSet;
typedef std::set<Stream *> StreamSet;
StreamSet mStreamSet;
bool mInitialized;
bool mDeviceLost;
Caps mCaps;
DisplayExtensions mDisplayExtensions;
std::string mDisplayExtensionString;
std::string mVendorString;
Device *mDevice;
EGLenum mPlatform;
angle::LoggingAnnotator mAnnotator;
gl::TextureManager *mTextureManager;
gl::MemoryProgramCache mMemoryProgramCache;
size_t mGlobalTextureShareGroupUsers;
// This gl::Context is a simple proxy to the Display for the GL back-end entry points
// that need access to implementation-specific data, like a Renderer object.
angle::UniqueObjectPointer<gl::Context, Display> mProxyContext;
};
} // namespace egl
#endif // LIBANGLE_DISPLAY_H_
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