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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 <log/log.h>
#include <ui/GraphicBufferMapper.h>
#define UNUSED(x) (void)(x)
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;
}
int DrmHwcNativeHandle::CopyBufferHandle(buffer_handle_t handle, int width,
int height, int layerCount, int format,
int usage, int stride) {
native_handle_t *handle_copy;
GraphicBufferMapper &gm(GraphicBufferMapper::get());
int ret;
#ifdef HWC2_USE_OLD_GB_IMPORT
UNUSED(width);
UNUSED(height);
UNUSED(layerCount);
UNUSED(format);
UNUSED(usage);
UNUSED(stride);
ret = gm.importBuffer(handle, const_cast<buffer_handle_t *>(&handle_copy));
#else
ret = gm.importBuffer(handle, width, height, layerCount, format, usage,
stride, const_cast<buffer_handle_t *>(&handle_copy));
#endif
if (ret) {
ALOGE("Failed to import buffer handle %d", ret);
return ret;
}
Clear();
handle_ = handle_copy;
return 0;
}
DrmHwcNativeHandle::~DrmHwcNativeHandle() {
Clear();
}
void DrmHwcNativeHandle::Clear() {
if (handle_ != NULL) {
GraphicBufferMapper &gm(GraphicBufferMapper::get());
int ret = gm.freeBuffer(handle_);
if (ret) {
ALOGE("Failed to free buffer handle %d", ret);
}
handle_ = NULL;
}
}
int DrmHwcLayer::ImportBuffer(Importer *importer) {
int ret = buffer.ImportBuffer(sf_handle, importer);
if (ret)
return ret;
const hwc_drm_bo *bo = buffer.operator->();
unsigned int layer_count;
for (layer_count = 0; layer_count < HWC_DRM_BO_MAX_PLANES; ++layer_count)
if (bo->gem_handles[layer_count] == 0)
break;
ret = handle.CopyBufferHandle(sf_handle, bo->width, bo->height, layer_count,
bo->hal_format, bo->usage, bo->pixel_stride);
if (ret)
return ret;
gralloc_buffer_usage = bo->usage;
return 0;
}
int DrmHwcLayer::InitFromDrmHwcLayer(DrmHwcLayer *src_layer,
Importer *importer) {
blending = src_layer->blending;
sf_handle = src_layer->sf_handle;
acquire_fence = -1;
display_frame = src_layer->display_frame;
alpha = src_layer->alpha;
source_crop = src_layer->source_crop;
transform = src_layer->transform;
return ImportBuffer(importer);
}
void DrmHwcLayer::SetSourceCrop(hwc_frect_t const &crop) {
source_crop = crop;
}
void DrmHwcLayer::SetDisplayFrame(hwc_rect_t const &frame) {
display_frame = frame;
}
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;
}
}
} // namespace android
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