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/*
* Copyright (C) 2016 The Android Open Source Project
*
* 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.
*/
#define ATRACE_TAG ATRACE_TAG_GRAPHICS
#define LOG_TAG "hwc-drm-utils"
#include "drmhwcomposer.h"
#include "platform.h"
#include <cutils/log.h>
namespace android {
const hwc_drm_bo *DrmHwcBuffer::operator->() const {
if (importer_ == NULL) {
ALOGE("Access of non-existent BO");
exit(1);
return NULL;
}
return &bo_;
}
void DrmHwcBuffer::Clear() {
if (importer_ != NULL) {
importer_->ReleaseBuffer(&bo_);
importer_ = NULL;
}
}
int DrmHwcBuffer::ImportBuffer(buffer_handle_t handle, Importer *importer) {
hwc_drm_bo tmp_bo;
int ret = importer->ImportBuffer(handle, &tmp_bo);
if (ret)
return ret;
if (importer_ != NULL) {
importer_->ReleaseBuffer(&bo_);
}
importer_ = importer;
bo_ = tmp_bo;
return 0;
}
static native_handle_t *dup_buffer_handle(buffer_handle_t handle) {
native_handle_t *new_handle =
native_handle_create(handle->numFds, handle->numInts);
if (new_handle == NULL)
return NULL;
const int *old_data = handle->data;
int *new_data = new_handle->data;
for (int i = 0; i < handle->numFds; i++) {
*new_data = dup(*old_data);
old_data++;
new_data++;
}
memcpy(new_data, old_data, sizeof(int) * handle->numInts);
return new_handle;
}
static void free_buffer_handle(native_handle_t *handle) {
int ret = native_handle_close(handle);
if (ret)
ALOGE("Failed to close native handle %d", ret);
ret = native_handle_delete(handle);
if (ret)
ALOGE("Failed to delete native handle %d", ret);
}
int DrmHwcNativeHandle::CopyBufferHandle(buffer_handle_t handle,
const gralloc_module_t *gralloc) {
native_handle_t *handle_copy = dup_buffer_handle(handle);
if (handle_copy == NULL) {
ALOGE("Failed to duplicate handle");
return -ENOMEM;
}
int ret = gralloc->registerBuffer(gralloc, handle_copy);
if (ret) {
ALOGE("Failed to register buffer handle %d", ret);
free_buffer_handle(handle_copy);
return ret;
}
Clear();
gralloc_ = gralloc;
handle_ = handle_copy;
return 0;
}
DrmHwcNativeHandle::~DrmHwcNativeHandle() {
Clear();
}
void DrmHwcNativeHandle::Clear() {
if (gralloc_ != NULL && handle_ != NULL) {
gralloc_->unregisterBuffer(gralloc_, handle_);
free_buffer_handle(handle_);
gralloc_ = NULL;
handle_ = NULL;
}
}
int DrmHwcLayer::InitFromHwcLayer(hwc_layer_1_t *sf_layer, Importer *importer,
const gralloc_module_t *gralloc) {
alpha = sf_layer->planeAlpha;
SetSourceCrop(sf_layer->sourceCropf);
SetDisplayFrame(sf_layer->displayFrame);
SetTransform(sf_layer->transform);
switch (sf_layer->blending) {
case HWC_BLENDING_NONE:
blending = DrmHwcBlending::kNone;
break;
case HWC_BLENDING_PREMULT:
blending = DrmHwcBlending::kPreMult;
break;
case HWC_BLENDING_COVERAGE:
blending = DrmHwcBlending::kCoverage;
break;
default:
ALOGE("Invalid blending in hwc_layer_1_t %d", sf_layer->blending);
return -EINVAL;
}
sf_handle = sf_layer->handle;
return ImportBuffer(importer, gralloc);
}
int DrmHwcLayer::ImportBuffer(Importer *importer,
const gralloc_module_t *gralloc) {
int ret = buffer.ImportBuffer(sf_handle, importer);
if (ret)
return ret;
ret = handle.CopyBufferHandle(sf_handle, gralloc);
if (ret)
return ret;
gralloc_buffer_usage = buffer.operator->()->usage;
return 0;
}
void DrmHwcLayer::SetSourceCrop(hwc_frect_t const &crop) {
source_crop = DrmHwcRect<float>(crop.left, crop.top, crop.right, crop.bottom);
}
void DrmHwcLayer::SetDisplayFrame(hwc_rect_t const &frame) {
display_frame =
DrmHwcRect<int>(frame.left, frame.top, frame.right, frame.bottom);
}
void DrmHwcLayer::SetTransform(int32_t sf_transform) {
transform = 0;
// 270* and 180* cannot be combined with flips. More specifically, they
// already contain both horizontal and vertical flips, so those fields are
// redundant in this case. 90* rotation can be combined with either horizontal
// flip or vertical flip, so treat it differently
if (sf_transform == HWC_TRANSFORM_ROT_270) {
transform = DrmHwcTransform::kRotate270;
} else if (sf_transform == HWC_TRANSFORM_ROT_180) {
transform = DrmHwcTransform::kRotate180;
} else {
if (sf_transform & HWC_TRANSFORM_FLIP_H)
transform |= DrmHwcTransform::kFlipH;
if (sf_transform & HWC_TRANSFORM_FLIP_V)
transform |= DrmHwcTransform::kFlipV;
if (sf_transform & HWC_TRANSFORM_ROT_90)
transform |= DrmHwcTransform::kRotate90;
}
}
}
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