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// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "GrallocAndroid.hpp"
#include "Debug.hpp"
#ifdef HAVE_GRALLOC1
#include <sync/sync.h>
#endif
GrallocModule *GrallocModule::getInstance()
{
static GrallocModule instance;
return &instance;
}
GrallocModule::GrallocModule()
{
const hw_module_t *module = nullptr;
hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module);
m_major_version = (module->module_api_version >> 8) & 0xff;
switch(m_major_version)
{
case 0:
m_module = reinterpret_cast<const gralloc_module_t*>(module);
break;
case 1:
#ifdef HAVE_GRALLOC1
gralloc1_open(module, &m_gralloc1_device);
m_gralloc1_lock = (GRALLOC1_PFN_LOCK) m_gralloc1_device->getFunction(m_gralloc1_device, GRALLOC1_FUNCTION_LOCK);
m_gralloc1_unlock = (GRALLOC1_PFN_UNLOCK)m_gralloc1_device->getFunction(m_gralloc1_device, GRALLOC1_FUNCTION_UNLOCK);
break;
#endif
default:
TRACE("unknown gralloc major version (%d)", m_major_version);
break;
}
}
int GrallocModule::lock(buffer_handle_t handle, int usage, int left, int top, int width, int height, void **vaddr)
{
switch(m_major_version)
{
case 0:
{
return m_module->lock(m_module, handle, usage, left, top, width, height, vaddr);
}
case 1:
#ifdef HAVE_GRALLOC1
{
gralloc1_rect_t outRect{};
outRect.left = left;
outRect.top = top;
outRect.width = width;
outRect.height = height;
return m_gralloc1_lock(m_gralloc1_device, handle, usage, usage, &outRect, vaddr, -1);
}
#endif
default:
{
TRACE("no gralloc module to lock");
return -1;
}
}
}
int GrallocModule::unlock(buffer_handle_t handle)
{
switch(m_major_version)
{
case 0:
{
return m_module->unlock(m_module, handle);
}
case 1:
#ifdef HAVE_GRALLOC1
{
int32_t fenceFd = -1;
int error = m_gralloc1_unlock(m_gralloc1_device, handle, &fenceFd);
if (!error)
{
sync_wait(fenceFd, -1);
close(fenceFd);
}
return error;
}
#endif
default:
{
TRACE("no gralloc module to unlock");
return -1;
}
}
}