| // |
| // Copyright (c) 2002-2014 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. |
| // |
| |
| // 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 <sstream> |
| |
| #include "common/debug.h" |
| #include "common/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 |
| { |
| |
| typedef std::map<EGLNativeDisplayType, Display*> DisplayMap; |
| static DisplayMap *GetDisplayMap() |
| { |
| static DisplayMap displays; |
| return &displays; |
| } |
| |
| egl::Display *Display::getDisplay(EGLNativeDisplayType displayId, EGLint displayType) |
| { |
| DisplayMap *displays = GetDisplayMap(); |
| DisplayMap::const_iterator iter = displays->find(displayId); |
| if (iter != displays->end()) |
| { |
| return iter->second; |
| } |
| |
| // FIXME: Check if displayId is a valid display device context |
| |
| egl::Display *display = new egl::Display(displayId, displayType); |
| displays->insert(std::make_pair(displayId, display)); |
| |
| return display; |
| } |
| |
| Display::Display(EGLNativeDisplayType displayId, EGLint displayType) |
| : mDisplayId(displayId), |
| mRequestedDisplayType(displayType), |
| mRenderer(NULL) |
| { |
| } |
| |
| Display::~Display() |
| { |
| terminate(); |
| |
| DisplayMap *displays = GetDisplayMap(); |
| DisplayMap::iterator iter = displays->find(mDisplayId); |
| if (iter != displays->end()) |
| { |
| displays->erase(iter); |
| } |
| } |
| |
| bool Display::initialize() |
| { |
| if (isInitialized()) |
| { |
| return true; |
| } |
| |
| mRenderer = glCreateRenderer(this, mDisplayId, mRequestedDisplayType); |
| |
| if (!mRenderer) |
| { |
| terminate(); |
| return error(EGL_NOT_INITIALIZED, false); |
| } |
| |
| EGLint minSwapInterval = mRenderer->getMinSwapInterval(); |
| EGLint maxSwapInterval = mRenderer->getMaxSwapInterval(); |
| EGLint maxTextureSize = mRenderer->getRendererCaps().max2DTextureSize; |
| |
| rx::ConfigDesc *descList; |
| int numConfigs = mRenderer->generateConfigs(&descList); |
| ConfigSet configSet; |
| |
| for (int i = 0; i < numConfigs; ++i) |
| { |
| configSet.add(descList[i], minSwapInterval, maxSwapInterval, maxTextureSize, maxTextureSize); |
| } |
| |
| // 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; |
| } |
| |
| initDisplayExtensionString(); |
| 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; |
| |
| EGLint width = 0; |
| EGLint height = 0; |
| EGLint fixedSize = 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_WIDTH: |
| width = attribList[1]; |
| break; |
| case EGL_HEIGHT: |
| height = attribList[1]; |
| break; |
| case EGL_FIXED_SIZE_ANGLE: |
| fixedSize = 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 (width < 0 || height < 0) |
| { |
| return error(EGL_BAD_PARAMETER, EGL_NO_SURFACE); |
| } |
| |
| if (!fixedSize) |
| { |
| width = -1; |
| height = -1; |
| } |
| |
| 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, fixedSize, width, height, 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->getRendererExtensions().textureNPOT && (!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, EGLint clientVersion, const gl::Context *shareContext, bool notifyResets, bool robustAccess) |
| { |
| if (!mRenderer) |
| { |
| return EGL_NO_CONTEXT; |
| } |
| else if (mRenderer->testDeviceLost(false)) // Lost device |
| { |
| if (!restoreLostDevice()) |
| { |
| return error(EGL_CONTEXT_LOST, EGL_NO_CONTEXT); |
| } |
| } |
| |
| if (clientVersion > 2 && mRenderer->getMajorShaderModel() < 4) |
| { |
| return error(EGL_BAD_CONFIG, EGL_NO_CONTEXT); |
| } |
| |
| gl::Context *context = glCreateContext(clientVersion, shareContext, mRenderer, notifyResets, robustAccess); |
| mContextSet.insert(context); |
| |
| return success(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; |
| } |
| |
| std::string Display::generateClientExtensionString() |
| { |
| std::vector<std::string> extensions; |
| |
| extensions.push_back("EGL_EXT_client_extensions"); |
| |
| extensions.push_back("ANGLE_platform_angle"); |
| |
| if (supportsPlatformD3D()) |
| { |
| extensions.push_back("ANGLE_platform_angle_d3d"); |
| } |
| |
| if (supportsPlatformOpenGL()) |
| { |
| extensions.push_back("ANGLE_platform_angle_opengl"); |
| } |
| |
| std::ostringstream stream; |
| std::copy(extensions.begin(), extensions.end(), std::ostream_iterator<std::string>(stream, " ")); |
| return stream.str(); |
| } |
| |
| void Display::initDisplayExtensionString() |
| { |
| std::vector<std::string> extensions; |
| |
| // Multi-vendor (EXT) extensions |
| extensions.push_back("EGL_EXT_create_context_robustness"); |
| |
| // ANGLE-specific extensions |
| if (mRenderer->getShareHandleSupport()) |
| { |
| extensions.push_back("EGL_ANGLE_d3d_share_handle_client_buffer"); |
| extensions.push_back("EGL_ANGLE_surface_d3d_texture_2d_share_handle"); |
| } |
| |
| extensions.push_back("EGL_ANGLE_query_surface_pointer"); |
| extensions.push_back("EGL_ANGLE_window_fixed_size"); |
| |
| if (mRenderer->getPostSubBufferSupport()) |
| { |
| extensions.push_back("EGL_NV_post_sub_buffer"); |
| } |
| |
| // TODO: complete support for the EGL_KHR_create_context extension |
| extensions.push_back("EGL_KHR_create_context"); |
| |
| std::ostringstream stream; |
| std::copy(extensions.begin(), extensions.end(), std::ostream_iterator<std::string>(stream, " ")); |
| mDisplayExtensionString = stream.str(); |
| } |
| |
| const char *Display::getExtensionString(egl::Display *display) |
| { |
| if (display != EGL_NO_DISPLAY) |
| { |
| return display->mDisplayExtensionString.c_str(); |
| } |
| else |
| { |
| static std::string clientExtensions = generateClientExtensionString(); |
| return clientExtensions.c_str(); |
| } |
| } |
| |
| bool Display::supportsPlatformD3D() |
| { |
| #if defined(ANGLE_ENABLE_D3D9) || defined(ANGLE_ENABLE_D3D11) |
| return true; |
| #else |
| return false; |
| #endif |
| } |
| |
| bool Display::supportsPlatformOpenGL() |
| { |
| return false; |
| } |
| |
| 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(); |
| } |
| |
| } |