/*
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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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#define LOG_TAG "hwc-platform-drm-generic"
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#include "platformdrmgeneric.h"
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#include "drmdevice.h"
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#include "platform.h"
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#include <drm/drm_fourcc.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include <gralloc_handle.h>
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#include <hardware/gralloc.h>
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#include <log/log.h>
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namespace android {
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#ifdef USE_DRM_GENERIC_IMPORTER
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// static
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Importer *Importer::CreateInstance(DrmDevice *drm) {
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DrmGenericImporter *importer = new DrmGenericImporter(drm);
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if (!importer)
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return NULL;
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int ret = importer->Init();
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if (ret) {
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ALOGE("Failed to initialize the nv importer %d", ret);
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delete importer;
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return NULL;
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}
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return importer;
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}
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#endif
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DrmGenericImporter::DrmGenericImporter(DrmDevice *drm) : drm_(drm) {
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}
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DrmGenericImporter::~DrmGenericImporter() {
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}
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int DrmGenericImporter::Init() {
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int ret = hw_get_module(GRALLOC_HARDWARE_MODULE_ID,
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(const hw_module_t **)&gralloc_);
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if (ret) {
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ALOGE("Failed to open gralloc module");
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return ret;
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}
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return 0;
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}
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uint32_t DrmGenericImporter::ConvertHalFormatToDrm(uint32_t hal_format) {
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switch (hal_format) {
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case HAL_PIXEL_FORMAT_RGB_888:
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return DRM_FORMAT_BGR888;
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case HAL_PIXEL_FORMAT_BGRA_8888:
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return DRM_FORMAT_ARGB8888;
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case HAL_PIXEL_FORMAT_RGBX_8888:
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return DRM_FORMAT_XBGR8888;
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case HAL_PIXEL_FORMAT_RGBA_8888:
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return DRM_FORMAT_ABGR8888;
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case HAL_PIXEL_FORMAT_RGB_565:
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return DRM_FORMAT_BGR565;
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case HAL_PIXEL_FORMAT_YV12:
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return DRM_FORMAT_YVU420;
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default:
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ALOGE("Cannot convert hal format to drm format %u", hal_format);
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return -EINVAL;
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}
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}
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uint32_t DrmGenericImporter::DrmFormatToBitsPerPixel(uint32_t drm_format) {
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switch (drm_format) {
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case DRM_FORMAT_ARGB8888:
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case DRM_FORMAT_XBGR8888:
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case DRM_FORMAT_ABGR8888:
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return 32;
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case DRM_FORMAT_BGR888:
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return 24;
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case DRM_FORMAT_BGR565:
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return 16;
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case DRM_FORMAT_YVU420:
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return 12;
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default:
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ALOGE("Cannot convert hal format %u to bpp (returning 32)", drm_format);
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return 32;
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}
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}
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int DrmGenericImporter::ImportBuffer(buffer_handle_t handle, hwc_drm_bo_t *bo) {
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gralloc_handle_t *gr_handle = gralloc_handle(handle);
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if (!gr_handle)
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return -EINVAL;
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uint32_t gem_handle;
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int ret = drmPrimeFDToHandle(drm_->fd(), gr_handle->prime_fd, &gem_handle);
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if (ret) {
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ALOGE("failed to import prime fd %d ret=%d", gr_handle->prime_fd, ret);
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return ret;
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}
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memset(bo, 0, sizeof(hwc_drm_bo_t));
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bo->width = gr_handle->width;
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bo->height = gr_handle->height;
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bo->hal_format = gr_handle->format;
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bo->format = ConvertHalFormatToDrm(gr_handle->format);
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bo->usage = gr_handle->usage;
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bo->pixel_stride = (gr_handle->stride * 8) /
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DrmFormatToBitsPerPixel(bo->format);
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bo->pitches[0] = gr_handle->stride;
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bo->gem_handles[0] = gem_handle;
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bo->offsets[0] = 0;
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ret = drmModeAddFB2(drm_->fd(), bo->width, bo->height, bo->format,
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bo->gem_handles, bo->pitches, bo->offsets, &bo->fb_id, 0);
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if (ret) {
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ALOGE("could not create drm fb %d", ret);
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return ret;
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}
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return ret;
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}
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int DrmGenericImporter::ReleaseBuffer(hwc_drm_bo_t *bo) {
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if (bo->fb_id)
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if (drmModeRmFB(drm_->fd(), bo->fb_id))
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ALOGE("Failed to rm fb");
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struct drm_gem_close gem_close;
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memset(&gem_close, 0, sizeof(gem_close));
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for (int i = 0; i < HWC_DRM_BO_MAX_PLANES; i++) {
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if (!bo->gem_handles[i])
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continue;
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gem_close.handle = bo->gem_handles[i];
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int ret = drmIoctl(drm_->fd(), DRM_IOCTL_GEM_CLOSE, &gem_close);
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if (ret) {
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ALOGE("Failed to close gem handle %d %d", i, ret);
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} else {
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for (int j = i + 1; j < HWC_DRM_BO_MAX_PLANES; j++)
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if (bo->gem_handles[j] == bo->gem_handles[i])
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bo->gem_handles[j] = 0;
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bo->gem_handles[i] = 0;
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}
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}
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return 0;
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}
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bool DrmGenericImporter::CanImportBuffer(buffer_handle_t handle) {
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if (handle == NULL)
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return false;
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return true;
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}
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#ifdef USE_DRM_GENERIC_IMPORTER
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std::unique_ptr<Planner> Planner::CreateInstance(DrmDevice *) {
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std::unique_ptr<Planner> planner(new Planner);
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planner->AddStage<PlanStageGreedy>();
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return planner;
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}
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#endif
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}
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