The Tor Browser: gfx/angle/src/libEGL/Display.cpp@6474c204b198 (annotated)

gfx/angle/src/libEGL/Display.cpp@6474c204b198 (annotated)

gfx/angle/src/libEGL/Display.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 //
 // 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.cpp: Implements the egl::Display class, representing the abstract
 // display on which graphics are drawn. Implements EGLDisplay.
 // [EGL 1.4] section 2.1.2 page 3.
 #include "libEGL/Display.h"
 #include <algorithm>
 #include <map>
 #include <vector>
 #include "common/debug.h"
 #include "libGLESv2/mathutil.h"
 #include "libGLESv2/main.h"
 #include "libGLESv2/Context.h"
 #include "libGLESv2/renderer/SwapChain.h"
 #include "libEGL/main.h"
 #include "libEGL/Surface.h"
 namespace egl
 {
 namespace
 {
     typedef std::map<EGLNativeDisplayType, Display*> DisplayMap;
     DisplayMap displays;
 }
 egl::Display *Display::getDisplay(EGLNativeDisplayType displayId)
 {
     if (displays.find(displayId) != displays.end())
     {
         return displays[displayId];
     }
     // FIXME: Check if displayId is a valid display device context
     egl::Display *display = new egl::Display(displayId, (HDC)displayId);
     displays[displayId] = display;
     return display;
 }
 Display::Display(EGLNativeDisplayType displayId, HDC deviceContext) : mDc(deviceContext)
 {
     mDisplayId = displayId;
     mRenderer = NULL;
 }
 Display::~Display()
 {
     terminate();
     DisplayMap::iterator thisDisplay = displays.find(mDisplayId);
     if (thisDisplay != displays.end())
     {
         displays.erase(thisDisplay);
     }
 }
 bool Display::initialize()
 {
     if (isInitialized())
     {
         return true;
     }
     mRenderer = glCreateRenderer(this, mDc, mDisplayId);
     if (!mRenderer)
     {
         terminate();
         return error(EGL_NOT_INITIALIZED, false);
     }
     EGLint minSwapInterval = mRenderer->getMinSwapInterval();
     EGLint maxSwapInterval = mRenderer->getMaxSwapInterval();
     EGLint maxTextureWidth = mRenderer->getMaxTextureWidth();
     EGLint maxTextureHeight = mRenderer->getMaxTextureHeight();
     rx::ConfigDesc *descList;
     int numConfigs = mRenderer->generateConfigs(&descList);
     ConfigSet configSet;
     for (int i = 0; i < numConfigs; ++i)
         configSet.add(descList[i], minSwapInterval, maxSwapInterval,
                       maxTextureWidth, maxTextureHeight);
     // Give the sorted configs a unique ID and store them internally
     EGLint index = 1;
     for (ConfigSet::Iterator config = configSet.mSet.begin(); config != configSet.mSet.end(); config++)
     {
         Config configuration = *config;
         configuration.mConfigID = index;
         index++;
         mConfigSet.mSet.insert(configuration);
     }
     mRenderer->deleteConfigs(descList);
     descList = NULL;
     if (!isInitialized())
     {
         terminate();
         return false;
     }
     initExtensionString();
     initVendorString();
     return true;
 }
 void Display::terminate()
 {
     while (!mSurfaceSet.empty())
     {
         destroySurface(*mSurfaceSet.begin());
     }
     while (!mContextSet.empty())
     {
         destroyContext(*mContextSet.begin());
     }
     glDestroyRenderer(mRenderer);
     mRenderer = NULL;
 }
 bool Display::getConfigs(EGLConfig *configs, const EGLint *attribList, EGLint configSize, EGLint *numConfig)
 {
     return mConfigSet.getConfigs(configs, attribList, configSize, numConfig);
 }
 bool Display::getConfigAttrib(EGLConfig config, EGLint attribute, EGLint *value)
 {
     const egl::Config *configuration = mConfigSet.get(config);
     switch (attribute)
     {
       case EGL_BUFFER_SIZE:               *value = configuration->mBufferSize;             break;
       case EGL_ALPHA_SIZE:                *value = configuration->mAlphaSize;              break;
       case EGL_BLUE_SIZE:                 *value = configuration->mBlueSize;               break;
       case EGL_GREEN_SIZE:                *value = configuration->mGreenSize;              break;
       case EGL_RED_SIZE:                  *value = configuration->mRedSize;                break;
       case EGL_DEPTH_SIZE:                *value = configuration->mDepthSize;              break;
       case EGL_STENCIL_SIZE:              *value = configuration->mStencilSize;            break;
       case EGL_CONFIG_CAVEAT:             *value = configuration->mConfigCaveat;           break;
       case EGL_CONFIG_ID:                 *value = configuration->mConfigID;               break;
       case EGL_LEVEL:                     *value = configuration->mLevel;                  break;
       case EGL_NATIVE_RENDERABLE:         *value = configuration->mNativeRenderable;       break;
       case EGL_NATIVE_VISUAL_TYPE:        *value = configuration->mNativeVisualType;       break;
       case EGL_SAMPLES:                   *value = configuration->mSamples;                break;
       case EGL_SAMPLE_BUFFERS:            *value = configuration->mSampleBuffers;          break;
       case EGL_SURFACE_TYPE:              *value = configuration->mSurfaceType;            break;
       case EGL_TRANSPARENT_TYPE:          *value = configuration->mTransparentType;        break;
       case EGL_TRANSPARENT_BLUE_VALUE:    *value = configuration->mTransparentBlueValue;   break;
       case EGL_TRANSPARENT_GREEN_VALUE:   *value = configuration->mTransparentGreenValue;  break;
       case EGL_TRANSPARENT_RED_VALUE:     *value = configuration->mTransparentRedValue;    break;
       case EGL_BIND_TO_TEXTURE_RGB:       *value = configuration->mBindToTextureRGB;       break;
       case EGL_BIND_TO_TEXTURE_RGBA:      *value = configuration->mBindToTextureRGBA;      break;
       case EGL_MIN_SWAP_INTERVAL:         *value = configuration->mMinSwapInterval;        break;
       case EGL_MAX_SWAP_INTERVAL:         *value = configuration->mMaxSwapInterval;        break;
       case EGL_LUMINANCE_SIZE:            *value = configuration->mLuminanceSize;          break;
       case EGL_ALPHA_MASK_SIZE:           *value = configuration->mAlphaMaskSize;          break;
       case EGL_COLOR_BUFFER_TYPE:         *value = configuration->mColorBufferType;        break;
       case EGL_RENDERABLE_TYPE:           *value = configuration->mRenderableType;         break;
       case EGL_MATCH_NATIVE_PIXMAP:       *value = false; UNIMPLEMENTED();                 break;
       case EGL_CONFORMANT:                *value = configuration->mConformant;             break;
       case EGL_MAX_PBUFFER_WIDTH:         *value = configuration->mMaxPBufferWidth;        break;
       case EGL_MAX_PBUFFER_HEIGHT:        *value = configuration->mMaxPBufferHeight;       break;
       case EGL_MAX_PBUFFER_PIXELS:        *value = configuration->mMaxPBufferPixels;       break;
       default:
         return false;
     }
     return true;
 }
 EGLSurface Display::createWindowSurface(HWND window, EGLConfig config, const EGLint *attribList)
 {
     const Config *configuration = mConfigSet.get(config);
     EGLint postSubBufferSupported = EGL_FALSE;
     if (attribList)
     {
         while (*attribList != EGL_NONE)
         {
             switch (attribList[0])
             {
               case EGL_RENDER_BUFFER:
                 switch (attribList[1])
                 {
                   case EGL_BACK_BUFFER:
                     break;
                   case EGL_SINGLE_BUFFER:
                     return error(EGL_BAD_MATCH, EGL_NO_SURFACE);   // Rendering directly to front buffer not supported
                   default:
                     return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
                 }
                 break;
               case EGL_POST_SUB_BUFFER_SUPPORTED_NV:
                 postSubBufferSupported = attribList[1];
                 break;
               case EGL_VG_COLORSPACE:
                 return error(EGL_BAD_MATCH, EGL_NO_SURFACE);
               case EGL_VG_ALPHA_FORMAT:
                 return error(EGL_BAD_MATCH, EGL_NO_SURFACE);
               default:
                 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
             }
             attribList += 2;
         }
     }
     if (hasExistingWindowSurface(window))
     {
         return error(EGL_BAD_ALLOC, EGL_NO_SURFACE);
     }
     if (mRenderer->testDeviceLost(false))
     {
         if (!restoreLostDevice())
             return EGL_NO_SURFACE;
     }
     Surface *surface = new Surface(this, configuration, window, postSubBufferSupported);
     if (!surface->initialize())
     {
         delete surface;
         return EGL_NO_SURFACE;
     }
     mSurfaceSet.insert(surface);
     return success(surface);
 }
 EGLSurface Display::createOffscreenSurface(EGLConfig config, HANDLE shareHandle, const EGLint *attribList)
 {
     EGLint width = 0, height = 0;
     EGLenum textureFormat = EGL_NO_TEXTURE;
     EGLenum textureTarget = EGL_NO_TEXTURE;
     const Config *configuration = mConfigSet.get(config);
     if (attribList)
     {
         while (*attribList != EGL_NONE)
         {
             switch (attribList[0])
             {
               case EGL_WIDTH:
                 width = attribList[1];
                 break;
               case EGL_HEIGHT:
                 height = attribList[1];
                 break;
               case EGL_LARGEST_PBUFFER:
                 if (attribList[1] != EGL_FALSE)
                   UNIMPLEMENTED(); // FIXME
                 break;
               case EGL_TEXTURE_FORMAT:
                 switch (attribList[1])
                 {
                   case EGL_NO_TEXTURE:
                   case EGL_TEXTURE_RGB:
                   case EGL_TEXTURE_RGBA:
                     textureFormat = attribList[1];
                     break;
                   default:
                     return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
                 }
                 break;
               case EGL_TEXTURE_TARGET:
                 switch (attribList[1])
                 {
                   case EGL_NO_TEXTURE:
                   case EGL_TEXTURE_2D:
                     textureTarget = attribList[1];
                     break;
                   default:
                     return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
                 }
                 break;
               case EGL_MIPMAP_TEXTURE:
                 if (attribList[1] != EGL_FALSE)
                   return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
                 break;
               case EGL_VG_COLORSPACE:
                 return error(EGL_BAD_MATCH, EGL_NO_SURFACE);
               case EGL_VG_ALPHA_FORMAT:
                 return error(EGL_BAD_MATCH, EGL_NO_SURFACE);
               default:
                 return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
             }
             attribList += 2;
         }
     }
     if (width < 0 || height < 0)
     {
         return error(EGL_BAD_PARAMETER, EGL_NO_SURFACE);
     }
     if (width == 0 || height == 0)
     {
         return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
     }
     if (textureFormat != EGL_NO_TEXTURE && !mRenderer->getNonPower2TextureSupport() && (!gl::isPow2(width) || !gl::isPow2(height)))
     {
         return error(EGL_BAD_MATCH, EGL_NO_SURFACE);
     }
     if ((textureFormat != EGL_NO_TEXTURE && textureTarget == EGL_NO_TEXTURE) ||
         (textureFormat == EGL_NO_TEXTURE && textureTarget != EGL_NO_TEXTURE))
     {
         return error(EGL_BAD_MATCH, EGL_NO_SURFACE);
     }
     if (!(configuration->mSurfaceType & EGL_PBUFFER_BIT))
     {
         return error(EGL_BAD_MATCH, EGL_NO_SURFACE);
     }
     if ((textureFormat == EGL_TEXTURE_RGB && configuration->mBindToTextureRGB != EGL_TRUE) ||
         (textureFormat == EGL_TEXTURE_RGBA && configuration->mBindToTextureRGBA != EGL_TRUE))
     {
         return error(EGL_BAD_ATTRIBUTE, EGL_NO_SURFACE);
     }
     if (mRenderer->testDeviceLost(false))
     {
         if (!restoreLostDevice())
             return EGL_NO_SURFACE;
     }
     Surface *surface = new Surface(this, configuration, shareHandle, width, height, textureFormat, textureTarget);
     if (!surface->initialize())
     {
         delete surface;
         return EGL_NO_SURFACE;
     }
     mSurfaceSet.insert(surface);
     return success(surface);
 }
 EGLContext Display::createContext(EGLConfig configHandle, const gl::Context *shareContext, bool notifyResets, bool robustAccess)
 {
     if (!mRenderer)
     {
         return NULL;
     }
     else if (mRenderer->testDeviceLost(false))   // Lost device
     {
         if (!restoreLostDevice())
             return NULL;
     }
     gl::Context *context = glCreateContext(shareContext, mRenderer, notifyResets, robustAccess);
     mContextSet.insert(context);
     return context;
 }
 bool Display::restoreLostDevice()
 {
     for (ContextSet::iterator ctx = mContextSet.begin(); ctx != mContextSet.end(); ctx++)
     {
         if ((*ctx)->isResetNotificationEnabled())
             return false;   // If reset notifications have been requested, application must delete all contexts first
     }
     // Release surface resources to make the Reset() succeed
     for (SurfaceSet::iterator surface = mSurfaceSet.begin(); surface != mSurfaceSet.end(); surface++)
     {
         (*surface)->release();
     }
     if (!mRenderer->resetDevice())
     {
         return error(EGL_BAD_ALLOC, false);
     }
     // Restore any surfaces that may have been lost
     for (SurfaceSet::iterator surface = mSurfaceSet.begin(); surface != mSurfaceSet.end(); surface++)
     {
         (*surface)->resetSwapChain();
     }
     return true;
 }
 void Display::destroySurface(egl::Surface *surface)
 {
     delete surface;
     mSurfaceSet.erase(surface);
 }
 void Display::destroyContext(gl::Context *context)
 {
     glDestroyContext(context);
     mContextSet.erase(context);
 }
 void Display::notifyDeviceLost()
 {
     for (ContextSet::iterator context = mContextSet.begin(); context != mContextSet.end(); context++)
     {
         (*context)->markContextLost();
     }
     egl::error(EGL_CONTEXT_LOST);
 }
 void Display::recreateSwapChains()
 {
     for (SurfaceSet::iterator surface = mSurfaceSet.begin(); surface != mSurfaceSet.end(); surface++)
     {
         (*surface)->getSwapChain()->recreate();
     }
 }
 bool Display::isInitialized() const
 {
     return mRenderer != NULL && mConfigSet.size() > 0;
 }
 bool Display::isValidConfig(EGLConfig config)
 {
     return mConfigSet.get(config) != NULL;
 }
 bool Display::isValidContext(gl::Context *context)
 {
     return mContextSet.find(context) != mContextSet.end();
 }
 bool Display::isValidSurface(egl::Surface *surface)
 {
     return mSurfaceSet.find(surface) != mSurfaceSet.end();
 }
 bool Display::hasExistingWindowSurface(HWND window)
 {
     for (SurfaceSet::iterator surface = mSurfaceSet.begin(); surface != mSurfaceSet.end(); surface++)
     {
         if ((*surface)->getWindowHandle() == window)
         {
             return true;
         }
     }
     return false;
 }
 void Display::initExtensionString()
 {
     HMODULE swiftShader = GetModuleHandle(TEXT("swiftshader_d3d9.dll"));
     bool shareHandleSupported = mRenderer->getShareHandleSupport();
     mExtensionString = "";
     // Multi-vendor (EXT) extensions
     mExtensionString += "EGL_EXT_create_context_robustness ";
     // ANGLE-specific extensions
     if (shareHandleSupported)
     {
         mExtensionString += "EGL_ANGLE_d3d_share_handle_client_buffer ";
     }
     mExtensionString += "EGL_ANGLE_query_surface_pointer ";
     if (swiftShader)
     {
         mExtensionString += "EGL_ANGLE_software_display ";
     }
     if (shareHandleSupported)
     {
         mExtensionString += "EGL_ANGLE_surface_d3d_texture_2d_share_handle ";
     }
     if (mRenderer->getPostSubBufferSupport())
     {
         mExtensionString += "EGL_NV_post_sub_buffer";
     }
     std::string::size_type end = mExtensionString.find_last_not_of(' ');
     if (end != std::string::npos)
     {
         mExtensionString.resize(end+1);
     }
 }
 const char *Display::getExtensionString() const
 {
     return mExtensionString.c_str();
 }
 void Display::initVendorString()
 {
     mVendorString = "Google Inc.";
     LUID adapterLuid = {0};
     if (mRenderer && mRenderer->getLUID(&adapterLuid))
     {
         char adapterLuidString[64];
         sprintf_s(adapterLuidString, sizeof(adapterLuidString), " (adapter LUID: %08x%08x)", adapterLuid.HighPart, adapterLuid.LowPart);
         mVendorString += adapterLuidString;
     }
 }
 const char *Display::getVendorString() const
 {
     return mVendorString.c_str();
 }
 }

The Tor Browser / annotate

gfx/angle/src/libEGL/Display.cpp@6474c204b198 (annotated)

gfx/angle/src/libEGL/Display.cpp