// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
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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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#include "GrallocAndroid.hpp"
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#include "Debug.hpp"
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#ifdef HAVE_GRALLOC1
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#include <sync/sync.h>
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#endif
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GrallocModule *GrallocModule::getInstance()
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{
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static GrallocModule instance;
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return &instance;
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}
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GrallocModule::GrallocModule()
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{
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const hw_module_t *module = nullptr;
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hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module);
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m_major_version = (module->module_api_version >> 8) & 0xff;
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switch(m_major_version)
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{
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case 0:
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m_module = reinterpret_cast<const gralloc_module_t*>(module);
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break;
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case 1:
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#ifdef HAVE_GRALLOC1
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gralloc1_open(module, &m_gralloc1_device);
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m_gralloc1_lock = (GRALLOC1_PFN_LOCK) m_gralloc1_device->getFunction(m_gralloc1_device, GRALLOC1_FUNCTION_LOCK);
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m_gralloc1_unlock = (GRALLOC1_PFN_UNLOCK)m_gralloc1_device->getFunction(m_gralloc1_device, GRALLOC1_FUNCTION_UNLOCK);
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break;
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#endif
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default:
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TRACE("unknown gralloc major version (%d)", m_major_version);
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break;
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}
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}
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int GrallocModule::lock(buffer_handle_t handle, int usage, int left, int top, int width, int height, void **vaddr)
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{
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switch(m_major_version)
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{
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case 0:
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{
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return m_module->lock(m_module, handle, usage, left, top, width, height, vaddr);
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}
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case 1:
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#ifdef HAVE_GRALLOC1
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{
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gralloc1_rect_t outRect{};
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outRect.left = left;
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outRect.top = top;
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outRect.width = width;
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outRect.height = height;
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return m_gralloc1_lock(m_gralloc1_device, handle, usage, usage, &outRect, vaddr, -1);
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}
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#endif
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default:
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{
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TRACE("no gralloc module to lock");
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return -1;
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}
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}
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}
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int GrallocModule::unlock(buffer_handle_t handle)
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{
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switch(m_major_version)
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{
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case 0:
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{
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return m_module->unlock(m_module, handle);
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}
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case 1:
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#ifdef HAVE_GRALLOC1
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{
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int32_t fenceFd = -1;
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int error = m_gralloc1_unlock(m_gralloc1_device, handle, &fenceFd);
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if (!error)
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{
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sync_wait(fenceFd, -1);
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close(fenceFd);
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}
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return error;
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}
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#endif
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default:
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{
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TRACE("no gralloc module to unlock");
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return -1;
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}
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}
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}
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