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/* |
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// Copyright (c) 2014 Intel Corporation |
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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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#include <HwcTrace.h> |
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#include <Drm.h> |
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#include <Hwcomposer.h> |
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#include <common/VsyncControl.h> |
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namespace android { |
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namespace intel { |
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VsyncControl::VsyncControl() |
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: IVsyncControl(), |
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mInitialized(false) |
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{ |
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} |
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VsyncControl::~VsyncControl() |
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{ |
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WARN_IF_NOT_DEINIT(); |
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} |
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bool VsyncControl::initialize() |
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{ |
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mInitialized = true; |
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return true; |
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} |
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void VsyncControl::deinitialize() |
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{ |
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mInitialized = false; |
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} |
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bool VsyncControl::control(int disp, bool enabled) |
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{ |
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ATRACE("disp = %d, enabled = %d", disp, enabled); |
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struct drm_psb_vsync_set_arg arg; |
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memset(&arg, 0, sizeof(struct drm_psb_vsync_set_arg)); |
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// pipe equals to disp |
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arg.vsync.pipe = disp; |
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if (enabled) { |
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arg.vsync_operation_mask = VSYNC_ENABLE; |
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} else { |
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arg.vsync_operation_mask = VSYNC_DISABLE; |
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} |
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Drm *drm = Hwcomposer::getInstance().getDrm(); |
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return drm->writeReadIoctl(DRM_PSB_VSYNC_SET, &arg, sizeof(arg)); |
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} |
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bool VsyncControl::wait(int disp, int64_t& timestamp) |
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{ |
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ATRACE("disp = %d", disp); |
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struct drm_psb_vsync_set_arg arg; |
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memset(&arg, 0, sizeof(struct drm_psb_vsync_set_arg)); |
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arg.vsync_operation_mask = VSYNC_WAIT; |
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// pipe equals to disp |
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arg.vsync.pipe = disp; |
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Drm *drm = Hwcomposer::getInstance().getDrm(); |
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bool ret = drm->writeReadIoctl(DRM_PSB_VSYNC_SET, &arg, sizeof(arg)); |
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timestamp = (int64_t)arg.vsync.timestamp; |
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return ret; |
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} |
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} // namespace intel |
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} // namespace android
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