73 lines
2.6 KiB
C
73 lines
2.6 KiB
C
/*
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* Copyright 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HWVULKAN_H
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#define ANDROID_HWVULKAN_H
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#include <hardware/hardware.h>
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#include <vulkan/vulkan.h>
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__BEGIN_DECLS
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#define HWVULKAN_HARDWARE_MODULE_ID "vulkan"
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#define HWVULKAN_MODULE_API_VERSION_0_1 HARDWARE_MODULE_API_VERSION(0, 1)
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#define HWVULKAN_DEVICE_API_VERSION_0_1 HARDWARE_DEVICE_API_VERSION_2(0, 1, 0)
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#define HWVULKAN_DEVICE_0 "vk0"
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typedef struct hwvulkan_module_t {
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struct hw_module_t common;
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} hwvulkan_module_t;
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/* Dispatchable Vulkan object handles must be pointers, which must point to
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* instances of hwvulkan_dispatch_t (potentially followed by additional
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* implementation-defined data). On return from the creation function, the
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* 'magic' field must contain HWVULKAN_DISPATCH_MAGIC; the loader will overwrite
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* the 'vtbl' field.
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*
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* NOTE: The magic value and the layout of hwvulkan_dispatch_t match the LunarG
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* loader used on platforms, to avoid pointless annoying differences for
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* multi-platform drivers. Don't change them without a good reason. If there is
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* an opportunity to change it, using a magic value that doesn't leave the
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* upper 32-bits zero on 64-bit platforms would be nice.
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*/
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#define HWVULKAN_DISPATCH_MAGIC 0x01CDC0DE
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typedef union {
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uintptr_t magic;
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const void* vtbl;
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} hwvulkan_dispatch_t;
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/* A hwvulkan_device_t corresponds to an ICD on other systems. Currently there
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* can only be one on a system (HWVULKAN_DEVICE_0). It is opened once per
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* process when the Vulkan API is first used; the hw_device_t::close() function
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* is called upon driver unloading. Any non-trivial resource allocation should
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* be done when the VkInstance is created rather than when the hwvulkan_device_t
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* is opened.
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*/
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typedef struct hwvulkan_device_t {
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struct hw_device_t common;
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PFN_vkEnumerateInstanceExtensionProperties
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EnumerateInstanceExtensionProperties;
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PFN_vkCreateInstance CreateInstance;
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PFN_vkGetInstanceProcAddr GetInstanceProcAddr;
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} hwvulkan_device_t;
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__END_DECLS
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#endif // ANDROID_HWVULKAN_H
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