mirror of https://github.com/mosra/magnum.git
Squareys
10 years ago
committed by
Jonathan Hale
2 changed files with 325 additions and 0 deletions
@ -0,0 +1,164 @@
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/*
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This file is part of Magnum. |
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Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016 |
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Vladimír Vondruš <mosra@centrum.cz> |
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|
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Permission is hereby granted, free of charge, to any person obtaining a |
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copy of this software and associated documentation files (the "Software"), |
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to deal in the Software without restriction, including without limitation |
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the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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and/or sell copies of the Software, and to permit persons to whom the |
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Software is furnished to do so, subject to the following conditions: |
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|
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The above copyright notice and this permission notice shall be included |
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in all copies or substantial portions of the Software. |
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|
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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DEALINGS IN THE SOFTWARE. |
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*/ |
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#include "Context.h" |
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#include <Corrade/Utility/Arguments.h> |
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#include <Corrade/Utility/Assert.h> |
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#include <Corrade/Utility/String.h> |
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#include "vulkan.h" |
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PFN_vkCreateDebugReportCallbackEXT CreateDebugReportCallback; |
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PFN_vkDestroyDebugReportCallbackEXT DestroyDebugReportCallback; |
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PFN_vkDebugReportMessageEXT dbgBreakCallback; |
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VkDebugReportCallbackEXT msgCallback; |
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namespace Magnum { namespace Vk { |
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const char *validationLayerNames[] = |
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{ |
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// This is a meta layer that enables all of the standard
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// validation layers in the correct order :
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// threading, parameter_validation, device_limits, object_tracker, image, core_validation, swapchain, and unique_objects
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"VK_LAYER_LUNARG_standard_validation" |
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}; |
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Context* Context::_current = nullptr; |
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bool Context::hasCurrent() { return _current; } |
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Context& Context::current() { |
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CORRADE_ASSERT(_current, "Context::current(): no current context", *_current); |
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return *_current; |
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} |
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Context::Context(NoCreateT, Int argc, char** argv, void functionLoader()): _functionLoader{functionLoader}, _version{Version::None} { |
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Utility::Arguments args{"magnum"}; |
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args.parse(argc, argv); |
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} |
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Context::Context(Flags flags): _functionLoader{nullptr}, _version{Version::None}, _flags(flags) { |
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create(); |
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} |
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Context::Context(Context&& other): _version{std::move(other._version)}, |
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_flags{std::move(other._flags)} |
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{ |
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if(_current == &other) _current = this; |
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} |
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Context::~Context() { |
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if(_current == this) _current = nullptr; |
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if(_instance == nullptr) { |
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Error() << "No VkInstance to destroy"; |
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return; |
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} |
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if (_flags >= Flag::EnableValidation) { |
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DestroyDebugReportCallback(_instance, msgCallback, nullptr); |
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} |
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vkDestroyInstance(_instance, nullptr); |
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} |
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void Context::create() { |
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/* Hard exit if the context cannot be created */ |
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if(!tryCreate()) std::exit(1); |
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} |
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VkBool32 messageCallback(VkDebugReportFlagsEXT flags, VkDebugReportObjectTypeEXT objType, |
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uint64_t srcObject, size_t location, int32_t msgCode, const char* pLayerPrefix, const char* pMsg, void* pUserData) { |
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if (flags & VK_DEBUG_REPORT_ERROR_BIT_EXT) { |
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Error() << "[" << pLayerPrefix << "] Code" << msgCode << ":" << pMsg; |
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} else if (flags & VK_DEBUG_REPORT_WARNING_BIT_EXT) { |
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Warning() << "[" << pLayerPrefix << "] Code" << msgCode << ":" << pMsg; |
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} |
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return false; |
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} |
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bool Context::tryCreate() { |
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VkApplicationInfo appInfo = {}; |
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appInfo.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO; |
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appInfo.pApplicationName = "Vulkan Example"; |
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appInfo.pEngineName = "Magnum"; |
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appInfo.apiVersion = UnsignedInt(Version::Vulkan_1_0); |
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std::vector<const char*> enabledExtensions = { VK_KHR_SURFACE_EXTENSION_NAME }; |
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// Enable surface extensions depending on os
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//enabledExtensions.push_back(VK_KHR_WIN32_SURFACE_EXTENSION_NAME);
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VkInstanceCreateInfo instanceCreateInfo = {}; |
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instanceCreateInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO; |
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instanceCreateInfo.pNext = nullptr; |
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instanceCreateInfo.pApplicationInfo = &appInfo; |
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if (_flags >= Flag::EnableValidation) { |
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enabledExtensions.push_back(VK_EXT_DEBUG_REPORT_EXTENSION_NAME); |
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instanceCreateInfo.enabledLayerCount = 1; |
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instanceCreateInfo.ppEnabledLayerNames = validationLayerNames; |
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} |
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if (enabledExtensions.size() > 0) { |
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instanceCreateInfo.enabledExtensionCount = enabledExtensions.size(); |
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instanceCreateInfo.ppEnabledExtensionNames = enabledExtensions.data(); |
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} |
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VkResult ret = vkCreateInstance(&instanceCreateInfo, nullptr, &_instance); |
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if(ret != VK_SUCCESS) { |
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Error() << "Vulkan Instance creation failed with error" << ret; |
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return false; |
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} |
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_current = this; |
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/* setup debugging */ |
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if (_flags >= Flag::EnableValidation) { |
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CreateDebugReportCallback = (PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(_instance, "vkCreateDebugReportCallbackEXT"); |
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DestroyDebugReportCallback = (PFN_vkDestroyDebugReportCallbackEXT)vkGetInstanceProcAddr(_instance, "vkDestroyDebugReportCallbackEXT"); |
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dbgBreakCallback = (PFN_vkDebugReportMessageEXT)vkGetInstanceProcAddr(_instance, "vkDebugReportMessageEXT"); |
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VkDebugReportCallbackCreateInfoEXT dbgCreateInfo = {}; |
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dbgCreateInfo.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CREATE_INFO_EXT; |
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dbgCreateInfo.pfnCallback = (PFN_vkDebugReportCallbackEXT)messageCallback; |
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dbgCreateInfo.flags = VK_DEBUG_REPORT_ERROR_BIT_EXT | VK_DEBUG_REPORT_WARNING_BIT_EXT; |
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VkResult err = CreateDebugReportCallback( |
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_instance, |
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&dbgCreateInfo, |
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nullptr, |
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&msgCallback); |
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assert(!err); |
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} |
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return true; |
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} |
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bool Context::isVersionSupported(Version) const { |
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return true; |
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} |
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}} |
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#ifndef Magnum_Vk_Context_h |
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#define Magnum_Vk_Context_h |
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/*
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This file is part of Magnum. |
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|
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Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016 |
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Vladimír Vondruš <mosra@centrum.cz> |
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Copyright © 2016 Jonathan Hale <squareys@googlemail.com> |
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|
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Permission is hereby granted, free of charge, to any person obtaining a |
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copy of this software and associated documentation files (the "Software"), |
||||
to deal in the Software without restriction, including without limitation |
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the rights to use, copy, modify, merge, publish, distribute, sublicense, |
||||
and/or sell copies of the Software, and to permit persons to whom the |
||||
Software is furnished to do so, subject to the following conditions: |
||||
|
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The above copyright notice and this permission notice shall be included |
||||
in all copies or substantial portions of the Software. |
||||
|
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
||||
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
||||
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
||||
DEALINGS IN THE SOFTWARE. |
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*/ |
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/** @file
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* @brief Class @ref Magnum::Vk::Context |
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*/ |
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#include "vulkan.h" |
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#include <cstdlib> |
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#include <array> |
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#include <bitset> |
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#include <vector> |
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#include <Corrade/Containers/EnumSet.h> |
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#include "Magnum/Tags.h" |
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#include "Magnum/Magnum.h" |
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#include "Magnum/Vk/visibility.h" |
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#include "MagnumExternal/Optional/optional.hpp" |
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namespace Magnum { namespace Vk { |
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enum class Version: UnsignedInt { |
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None = 0, /**< No version */ |
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Vulkan_1_0 = VK_VERSION_1_0, /**< Vulkan 1.0 */ |
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}; |
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/**
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@brief Magnum context |
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Provides access to version and extension information. Instance available |
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through @ref Context::current() is automatically created during construction of |
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`*Application` classes in @ref Platform namespace. You can safely assume that |
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the instance is available during whole lifetime of `*Application` object. It's |
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also possible to create the context without using any `*Application` class |
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using @ref Platform::Context subclass, see @ref platform documentation for more |
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information. |
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## Command-line options |
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The context is configurable through command-line options, that are passed |
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either from the `Platform::*Application` classes or from the @ref Platform::Context |
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class. Usage: |
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<application> [--magnum-help] ... |
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Arguments: |
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- `...` -- main application arguments (see `-h` or `--help` for details) |
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- `--magnum-help` -- display this help message and exit |
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*/ |
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class MAGNUM_VK_EXPORT Context { |
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public: |
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/**
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* @brief Context flag |
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* |
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* @see @ref Flags, @ref flags(), |
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* @ref Platform::Sdl2Application::Configuration::setFlags() "Platform::*Application::Configuration::setFlags()" |
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*/ |
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enum class Flag: Int { |
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EnableValidation = 1, /**< Enable validation layer */ |
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}; |
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/**
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* @brief Context flags |
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* |
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* @see @ref flags() |
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*/ |
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typedef Containers::EnumSet<Flag> Flags; |
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/**
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* @brief Whether there is any current context |
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* |
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* @see @ref current() |
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*/ |
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static bool hasCurrent(); |
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/**
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* @brief Current context |
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* |
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* Expect that there is current context. |
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* @see @ref hasCurrent() |
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*/ |
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static Context& current(); |
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Context(Flags flags); |
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/** @brief Copying is not allowed */ |
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Context(const Context&) = delete; |
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/** @brief Move constructor */ |
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Context(Context&& other); |
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~Context(); |
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/** @brief Copying is not allowed */ |
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Context& operator=(const Context&) = delete; |
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/** @brief Move assignment is not allowed */ |
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Context& operator=(Context&&) = delete; |
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/** @brief Vulkan version */ |
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Version version() const { return _version; } |
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/** @brief Context flags */ |
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Flags flags() const { return _flags; } |
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/**
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* @brief Whether given Vulkan version is supported |
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* |
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* @see @ref MAGNUM_ASSERT_VERSION_SUPPORTED() |
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*/ |
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bool isVersionSupported(Version version) const; |
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VkInstance vkInstance() { |
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return _instance; |
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} |
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private: |
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MAGNUM_VK_LOCAL static Context* _current; |
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explicit Context(NoCreateT, Int argc, char** argv, void functionLoader()); |
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bool tryCreate(); |
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void create(); |
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void(*_functionLoader)(); |
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Version _version; |
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Flags _flags; |
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VkInstance _instance; |
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}; |
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}} |
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#endif |
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