dolphin/Source/Core/VideoBackends/Vulkan/VulkanContext.h

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2016-08-13 12:57:50 +00:00
// Copyright 2016 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include <vector>
#include "Common/CommonTypes.h"
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#include "VideoBackends/Vulkan/Constants.h"
#include "VideoCommon/VideoConfig.h"
namespace Vulkan
{
class VulkanContext
{
public:
VulkanContext(VkInstance instance, VkPhysicalDevice physical_device);
~VulkanContext();
// Determines if the Vulkan validation layer is available on the system.
static bool CheckValidationLayerAvailablility();
// Helper method to create a Vulkan instance.
static VkInstance CreateVulkanInstance(bool enable_surface, bool enable_validation_layer);
// Returns a list of Vulkan-compatible GPUs.
using GPUList = std::vector<VkPhysicalDevice>;
static GPUList EnumerateGPUs(VkInstance instance);
// Populates backend/video config.
// These are public so that the backend info can be populated without creating a context.
static void PopulateBackendInfo(VideoConfig* config);
static void PopulateBackendInfoAdapters(VideoConfig* config, const GPUList& gpu_list);
static void PopulateBackendInfoFeatures(VideoConfig* config, VkPhysicalDevice gpu,
const VkPhysicalDeviceFeatures& features);
static void PopulateBackendInfoMultisampleModes(VideoConfig* config, VkPhysicalDevice gpu,
const VkPhysicalDeviceProperties& properties);
// Creates a Vulkan device context.
// This assumes that PopulateBackendInfo and PopulateBackendInfoAdapters has already
// been called for the specified VideoConfig.
static std::unique_ptr<VulkanContext> Create(VkInstance instance, VkPhysicalDevice gpu,
VkSurfaceKHR surface, VideoConfig* config,
bool enable_validation_layer);
// Enable/disable debug message runtime.
// In the future this could be hooked up to the Host GPU logging option.
bool EnableDebugReports();
void DisableDebugReports();
// Global state accessors
VkInstance GetVulkanInstance() const { return m_instance; }
VkPhysicalDevice GetPhysicalDevice() const { return m_physical_device; }
VkDevice GetDevice() const { return m_device; }
VkQueue GetGraphicsQueue() const { return m_graphics_queue; }
u32 GetGraphicsQueueFamilyIndex() const { return m_graphics_queue_family_index; }
const VkQueueFamilyProperties& GetGraphicsQueueProperties() const
{
return m_graphics_queue_properties;
}
const VkPhysicalDeviceMemoryProperties& GetDeviceMemoryProperties() const
{
return m_device_memory_properties;
}
const VkPhysicalDeviceProperties& GetDeviceProperties() const { return m_device_properties; }
const VkPhysicalDeviceFeatures& GetDeviceFeatures() const { return m_device_features; }
const VkPhysicalDeviceLimits& GetDeviceLimits() const { return m_device_properties.limits; }
// Support bits
bool SupportsAnisotropicFiltering() const
{
return m_device_features.samplerAnisotropy == VK_TRUE;
}
bool SupportsGeometryShaders() const { return m_device_features.geometryShader == VK_TRUE; }
bool SupportsDualSourceBlend() const { return m_device_features.dualSrcBlend == VK_TRUE; }
bool SupportsLogicOps() const { return m_device_features.logicOp == VK_TRUE; }
bool SupportsBoundingBox() const { return m_device_features.fragmentStoresAndAtomics == VK_TRUE; }
bool SupportsPreciseOcclusionQueries() const
{
return m_device_features.occlusionQueryPrecise == VK_TRUE;
}
// Helpers for getting constants
VkDeviceSize GetUniformBufferAlignment() const
{
return m_device_properties.limits.minUniformBufferOffsetAlignment;
}
VkDeviceSize GetTexelBufferAlignment() const
{
return m_device_properties.limits.minUniformBufferOffsetAlignment;
}
VkDeviceSize GetBufferImageGranularity() const
{
return m_device_properties.limits.bufferImageGranularity;
}
float GetMaxSamplerAnisotropy() const { return m_device_properties.limits.maxSamplerAnisotropy; }
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// Finds a memory type index for the specified memory properties and the bits returned by
// vkGetImageMemoryRequirements
bool GetMemoryType(u32 bits, VkMemoryPropertyFlags properties, u32* out_type_index);
u32 GetMemoryType(u32 bits, VkMemoryPropertyFlags properties);
// Finds a memory type for upload or readback buffers.
u32 GetUploadMemoryType(u32 bits, bool* is_coherent = nullptr);
u32 GetReadbackMemoryType(u32 bits, bool* is_coherent = nullptr, bool* is_cached = nullptr);
private:
using ExtensionList = std::vector<const char*>;
static bool SelectInstanceExtensions(ExtensionList* extension_list, bool enable_surface,
bool enable_validation_layer);
bool SelectDeviceExtensions(ExtensionList* extension_list, bool enable_surface,
bool enable_validation_layer);
bool SelectDeviceFeatures();
bool CreateDevice(VkSurfaceKHR surface, bool enable_validation_layer);
VkInstance m_instance = VK_NULL_HANDLE;
VkPhysicalDevice m_physical_device = VK_NULL_HANDLE;
VkDevice m_device = VK_NULL_HANDLE;
VkQueue m_graphics_queue = VK_NULL_HANDLE;
u32 m_graphics_queue_family_index = 0;
VkQueueFamilyProperties m_graphics_queue_properties = {};
VkDebugReportCallbackEXT m_debug_report_callback = VK_NULL_HANDLE;
VkPhysicalDeviceFeatures m_device_features = {};
VkPhysicalDeviceProperties m_device_properties = {};
VkPhysicalDeviceMemoryProperties m_device_memory_properties = {};
};
extern std::unique_ptr<VulkanContext> g_vulkan_context;
} // namespace Vulkan