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      1 /*
      2  * Copyright 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef __VK_ANDROID_NATIVE_BUFFER_H__
     18 #define __VK_ANDROID_NATIVE_BUFFER_H__
     19 
     20 #include <system/window.h>
     21 #include <vulkan/vulkan.h>
     22 
     23 #ifdef __cplusplus
     24 extern "C" {
     25 #endif
     26 
     27 #define VK_ANDROID_native_buffer 1
     28 
     29 #define VK_ANDROID_NATIVE_BUFFER_EXTENSION_NUMBER 11
     30 #define VK_ANDROID_NATIVE_BUFFER_SPEC_VERSION     5
     31 #define VK_ANDROID_NATIVE_BUFFER_EXTENSION_NAME   "VK_ANDROID_native_buffer"
     32 
     33 #define VK_ANDROID_NATIVE_BUFFER_ENUM(type,id)    ((type)(1000000000 + (1000 * (VK_ANDROID_NATIVE_BUFFER_EXTENSION_NUMBER - 1)) + (id)))
     34 #define VK_STRUCTURE_TYPE_NATIVE_BUFFER_ANDROID   VK_ANDROID_NATIVE_BUFFER_ENUM(VkStructureType, 0)
     35 
     36 typedef struct {
     37     VkStructureType             sType; // must be VK_STRUCTURE_TYPE_NATIVE_BUFFER_ANDROID
     38     const void*                 pNext;
     39 
     40     // Buffer handle and stride returned from gralloc alloc()
     41     buffer_handle_t             handle;
     42     int                         stride;
     43 
     44     // Gralloc format and usage requested when the buffer was allocated.
     45     int                         format;
     46     int                         usage;
     47 } VkNativeBufferANDROID;
     48 
     49 typedef VkResult (VKAPI_PTR *PFN_vkGetSwapchainGrallocUsageANDROID)(VkDevice device, VkFormat format, VkImageUsageFlags imageUsage, int* grallocUsage);
     50 typedef VkResult (VKAPI_PTR *PFN_vkAcquireImageANDROID)(VkDevice device, VkImage image, int nativeFenceFd, VkSemaphore semaphore, VkFence fence);
     51 typedef VkResult (VKAPI_PTR *PFN_vkQueueSignalReleaseImageANDROID)(VkQueue queue, uint32_t waitSemaphoreCount, const VkSemaphore* pWaitSemaphores, VkImage image, int* pNativeFenceFd);
     52 
     53 #ifndef VK_NO_PROTOTYPES
     54 VKAPI_ATTR VkResult VKAPI_CALL vkGetSwapchainGrallocUsageANDROID(
     55     VkDevice            device,
     56     VkFormat            format,
     57     VkImageUsageFlags   imageUsage,
     58     int*                grallocUsage
     59 );
     60 VKAPI_ATTR VkResult VKAPI_CALL vkAcquireImageANDROID(
     61     VkDevice            device,
     62     VkImage             image,
     63     int                 nativeFenceFd,
     64     VkSemaphore         semaphore,
     65     VkFence             fence
     66 );
     67 VKAPI_ATTR VkResult VKAPI_CALL vkQueueSignalReleaseImageANDROID(
     68     VkQueue             queue,
     69     uint32_t            waitSemaphoreCount,
     70     const VkSemaphore*  pWaitSemaphores,
     71     VkImage             image,
     72     int*                pNativeFenceFd
     73 );
     74 // -- DEPRECATED --
     75 VKAPI_ATTR VkResult VKAPI_CALL vkImportNativeFenceANDROID(
     76     VkDevice            device,
     77     VkSemaphore         semaphore,
     78     int                 nativeFenceFd
     79 );
     80 VKAPI_ATTR VkResult VKAPI_CALL vkQueueSignalNativeFenceANDROID(
     81     VkQueue             queue,
     82     int*                pNativeFenceFd
     83 );
     84 // ----------------
     85 #endif
     86 
     87 #ifdef __cplusplus
     88 }
     89 #endif
     90 
     91 #endif // __VK_ANDROID_NATIVE_BUFFER_H__
     92