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Diffstat (limited to 'src/libEGL/Display.cpp')
| -rw-r--r-- | src/libEGL/Display.cpp | 537 |
1 files changed, 537 insertions, 0 deletions
diff --git a/src/libEGL/Display.cpp b/src/libEGL/Display.cpp new file mode 100644 index 00000000..8f2af794 --- /dev/null +++ b/src/libEGL/Display.cpp @@ -0,0 +1,537 @@ +// +// 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(); +} + +} |