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106 lines
2.5 KiB
106 lines
2.5 KiB
/*
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* Copyright (C) 2015 The Android Open Source Project
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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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#ifndef ANDROID_DRM_FRAMEBUFFER_
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#define ANDROID_DRM_FRAMEBUFFER_
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#include <stdint.h>
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#include <sync/sync.h>
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#include <ui/GraphicBuffer.h>
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namespace android {
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struct DrmFramebuffer {
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DrmFramebuffer() : release_fence_fd_(-1) {
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}
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~DrmFramebuffer() {
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if (release_fence_fd() >= 0)
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close(release_fence_fd());
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}
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bool is_valid() {
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return buffer_ != NULL;
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}
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sp<GraphicBuffer> buffer() {
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return buffer_;
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}
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int release_fence_fd() {
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return release_fence_fd_;
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}
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void set_release_fence_fd(int fd) {
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if (release_fence_fd_ >= 0)
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close(release_fence_fd_);
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release_fence_fd_ = fd;
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}
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bool Allocate(uint32_t w, uint32_t h) {
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if (is_valid()) {
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if (buffer_->getWidth() == w && buffer_->getHeight() == h)
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return true;
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if (release_fence_fd_ >= 0) {
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if (sync_wait(release_fence_fd_, kReleaseWaitTimeoutMs) != 0) {
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ALOGE("Wait for release fence failed\n");
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return false;
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}
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}
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Clear();
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}
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buffer_ = new GraphicBuffer(w, h, PIXEL_FORMAT_RGB_888,
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GRALLOC_USAGE_HW_FB | GRALLOC_USAGE_HW_RENDER |
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GRALLOC_USAGE_HW_COMPOSER);
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release_fence_fd_ = -1;
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return is_valid();
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}
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void Clear() {
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if (!is_valid())
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return;
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if (release_fence_fd_ >= 0) {
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close(release_fence_fd_);
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release_fence_fd_ = -1;
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}
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buffer_.clear();
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}
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int WaitReleased(int timeout_milliseconds) {
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if (!is_valid())
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return 0;
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if (release_fence_fd_ < 0)
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return 0;
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int ret = sync_wait(release_fence_fd_, timeout_milliseconds);
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return ret;
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}
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// Somewhat arbitrarily chosen, but wanted to stay below 3000ms, which is the
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// system timeout
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static const int kReleaseWaitTimeoutMs = 1500;
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private:
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sp<GraphicBuffer> buffer_;
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int release_fence_fd_;
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};
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} // namespace android
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#endif // ANDROID_DRM_FRAMEBUFFER_
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