1 /* 2 * Copyright (c) 2016, The Linux Foundation. All rights reserved. 3 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above 10 * copyright notice, this list of conditions and the following 11 * disclaimer in the documentation and/or other materials provided 12 * with the distribution. 13 * * Neither the name of The Linux Foundation nor the names of its 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #ifndef __GR_DEVICE_IMPL_H__ 31 #define __GR_DEVICE_IMPL_H__ 32 33 #include <hardware/hardware.h> 34 #include <hardware/gralloc1.h> 35 #include "gr_buf_mgr.h" 36 37 struct private_module_t { 38 hw_module_t base; 39 }; 40 41 #define GRALLOC_IMPL(exp) reinterpret_cast<GrallocImpl const *>(exp) 42 43 namespace gralloc1 { 44 45 class GrallocImpl : public gralloc1_device_t { 46 public: 47 explicit GrallocImpl(const private_module_t *module); 48 ~GrallocImpl(); 49 bool Init(); 50 static int CloseDevice(hw_device_t *device); 51 static void GetCapabilities(struct gralloc1_device *device, uint32_t *out_count, 52 int32_t * /*gralloc1_capability_t*/ out_capabilities); 53 static gralloc1_function_pointer_t GetFunction( 54 struct gralloc1_device *device, int32_t /*gralloc1_function_descriptor_t*/ descriptor); 55 56 private: 57 static inline gralloc1_error_t CheckDeviceAndDescriptor(gralloc1_device_t *device, 58 gralloc1_buffer_descriptor_t descriptor); 59 static inline gralloc1_error_t CheckDeviceAndHandle(gralloc1_device_t *device, 60 buffer_handle_t buffer); 61 static gralloc1_error_t CreateBufferDescriptor(gralloc1_device_t *device, 62 gralloc1_buffer_descriptor_t *out_descriptor); 63 static gralloc1_error_t DestroyBufferDescriptor(gralloc1_device_t *device, 64 gralloc1_buffer_descriptor_t descriptor); 65 static gralloc1_error_t SetConsumerUsage(gralloc1_device_t *device, 66 gralloc1_buffer_descriptor_t descriptor, 67 gralloc1_consumer_usage_t usage); 68 static gralloc1_error_t SetBufferDimensions(gralloc1_device_t *device, 69 gralloc1_buffer_descriptor_t descriptor, 70 uint32_t width, uint32_t height); 71 static gralloc1_error_t SetColorFormat(gralloc1_device_t *device, 72 gralloc1_buffer_descriptor_t descriptor, int32_t format); 73 static gralloc1_error_t SetProducerUsage(gralloc1_device_t *device, 74 gralloc1_buffer_descriptor_t descriptor, 75 gralloc1_producer_usage_t usage); 76 static gralloc1_error_t GetBackingStore(gralloc1_device_t *device, buffer_handle_t buffer, 77 gralloc1_backing_store_t *out_store); 78 static gralloc1_error_t GetConsumerUsage(gralloc1_device_t *device, buffer_handle_t buffer, 79 gralloc1_consumer_usage_t *out_usage); 80 static gralloc1_error_t GetBufferDimensions(gralloc1_device_t *device, buffer_handle_t buffer, 81 uint32_t *out_width, uint32_t *out_height); 82 static gralloc1_error_t GetColorFormat(gralloc1_device_t *device, buffer_handle_t descriptor, 83 int32_t *outFormat); 84 static gralloc1_error_t GetProducerUsage(gralloc1_device_t *device, buffer_handle_t buffer, 85 gralloc1_producer_usage_t *out_usage); 86 static gralloc1_error_t GetBufferStride(gralloc1_device_t *device, buffer_handle_t buffer, 87 uint32_t *out_stride); 88 static gralloc1_error_t AllocateBuffers(gralloc1_device_t *device, uint32_t num_dptors, 89 const gralloc1_buffer_descriptor_t *descriptors, 90 buffer_handle_t *out_buffers); 91 static gralloc1_error_t RetainBuffer(gralloc1_device_t *device, buffer_handle_t buffer); 92 static gralloc1_error_t ReleaseBuffer(gralloc1_device_t *device, buffer_handle_t buffer); 93 static gralloc1_error_t getNumFlexPlanes(gralloc1_device_t *device, buffer_handle_t buffer, 94 uint32_t *out_num_planes); 95 static gralloc1_error_t LockBuffer(gralloc1_device_t *device, buffer_handle_t buffer, 96 gralloc1_producer_usage_t prod_usage, 97 gralloc1_consumer_usage_t cons_usage, 98 const gralloc1_rect_t *access_region, void **out_data, 99 int32_t acquire_fence); 100 static gralloc1_error_t LockFlex(gralloc1_device_t *device, buffer_handle_t buffer, 101 gralloc1_producer_usage_t prod_usage, 102 gralloc1_consumer_usage_t cons_usage, 103 const gralloc1_rect_t *access_region, 104 struct android_flex_layout *out_flex_layout, 105 int32_t acquireFence); 106 /* TODO(user) : LOCK_YCBCR changed to LOCK_FLEX but structure is not known yet. 107 * Need to implement after clarification from Google. 108 static gralloc1_error_t LockYCbCrBuffer(gralloc1_device_t* device, buffer_handle_t buffer, 109 gralloc1_producer_usage_t producerUsage, gralloc1_consumer_usage_t consumerUsage, 110 const gralloc1_rect_t* Region, struct android_ycbcr* outYCbCr, int32_t* outAcquireFence); 111 */ 112 static gralloc1_error_t UnlockBuffer(gralloc1_device_t *device, buffer_handle_t buffer, 113 int32_t *release_fence); 114 static gralloc1_error_t Gralloc1Perform(gralloc1_device_t *device, int operation, ...); 115 116 BufferManager *buf_mgr_ = NULL; 117 }; 118 119 } // namespace gralloc1 120 121 #endif // __GR_DEVICE_IMPL_H__ 122