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/*
* Copyright (C) 2015 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 LOG_TAG "hwc-platform-drm-generic"
#include "drmresources.h"
#include "platform.h"
#include "platformdrmgeneric.h"
#include <drm/drm_fourcc.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#include <cutils/log.h>
#include <gralloc_drm_handle.h>
#include <hardware/gralloc.h>
#include <EGL/eglext.h>
namespace android {
#ifdef USE_DRM_GENERIC_IMPORTER
// static
Importer *Importer::CreateInstance(DrmResources *drm) {
DrmGenericImporter *importer = new DrmGenericImporter(drm);
if (!importer)
return NULL;
int ret = importer->Init();
if (ret) {
ALOGE("Failed to initialize the nv importer %d", ret);
delete importer;
return NULL;
}
return importer;
}
#endif
DrmGenericImporter::DrmGenericImporter(DrmResources *drm) : drm_(drm) {
}
DrmGenericImporter::~DrmGenericImporter() {
}
int DrmGenericImporter::Init() {
int ret = hw_get_module(GRALLOC_HARDWARE_MODULE_ID,
(const hw_module_t **)&gralloc_);
if (ret) {
ALOGE("Failed to open gralloc module");
return ret;
}
return 0;
}
uint32_t DrmGenericImporter::ConvertHalFormatToDrm(uint32_t hal_format) {
switch (hal_format) {
case HAL_PIXEL_FORMAT_RGB_888:
return DRM_FORMAT_BGR888;
case HAL_PIXEL_FORMAT_BGRA_8888:
return DRM_FORMAT_ARGB8888;
case HAL_PIXEL_FORMAT_RGBX_8888:
return DRM_FORMAT_XBGR8888;
case HAL_PIXEL_FORMAT_RGBA_8888:
return DRM_FORMAT_ABGR8888;
case HAL_PIXEL_FORMAT_RGB_565:
return DRM_FORMAT_BGR565;
case HAL_PIXEL_FORMAT_YV12:
return DRM_FORMAT_YVU420;
default:
ALOGE("Cannot convert hal format to drm format %u", hal_format);
return -EINVAL;
}
}
EGLImageKHR DrmGenericImporter::ImportImage(EGLDisplay egl_display, buffer_handle_t handle) {
gralloc_drm_handle_t *gr_handle = gralloc_drm_handle(handle);
if (!gr_handle)
return NULL;
EGLint attr[] = {
EGL_WIDTH, gr_handle->width,
EGL_HEIGHT, gr_handle->height,
EGL_LINUX_DRM_FOURCC_EXT, (EGLint)ConvertHalFormatToDrm(gr_handle->format),
EGL_DMA_BUF_PLANE0_FD_EXT, gr_handle->prime_fd,
EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0,
EGL_DMA_BUF_PLANE0_PITCH_EXT, gr_handle->stride,
EGL_NONE,
};
return eglCreateImageKHR(egl_display, EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, attr);
}
int DrmGenericImporter::ImportBuffer(buffer_handle_t handle, hwc_drm_bo_t *bo) {
gralloc_drm_handle_t *gr_handle = gralloc_drm_handle(handle);
if (!gr_handle)
return -EINVAL;
uint32_t gem_handle;
int ret = drmPrimeFDToHandle(drm_->fd(), gr_handle->prime_fd, &gem_handle);
if (ret) {
ALOGE("failed to import prime fd %d ret=%d", gr_handle->prime_fd, ret);
return ret;
}
memset(bo, 0, sizeof(hwc_drm_bo_t));
bo->width = gr_handle->width;
bo->height = gr_handle->height;
bo->format = ConvertHalFormatToDrm(gr_handle->format);
bo->pitches[0] = gr_handle->stride;
bo->gem_handles[0] = gem_handle;
bo->offsets[0] = 0;
ret = drmModeAddFB2(drm_->fd(), bo->width, bo->height, bo->format,
bo->gem_handles, bo->pitches, bo->offsets, &bo->fb_id, 0);
if (ret) {
ALOGE("could not create drm fb %d", ret);
return ret;
}
return ret;
}
int DrmGenericImporter::ReleaseBuffer(hwc_drm_bo_t *bo) {
if (bo->fb_id)
if (drmModeRmFB(drm_->fd(), bo->fb_id))
ALOGE("Failed to rm fb");
struct drm_gem_close gem_close;
memset(&gem_close, 0, sizeof(gem_close));
int num_gem_handles = sizeof(bo->gem_handles) / sizeof(bo->gem_handles[0]);
for (int i = 0; i < num_gem_handles; i++) {
if (!bo->gem_handles[i])
continue;
gem_close.handle = bo->gem_handles[i];
int ret = drmIoctl(drm_->fd(), DRM_IOCTL_GEM_CLOSE, &gem_close);
if (ret)
ALOGE("Failed to close gem handle %d %d", i, ret);
else
bo->gem_handles[i] = 0;
}
return 0;
}
#ifdef USE_DRM_GENERIC_IMPORTER
std::unique_ptr<Planner> Planner::CreateInstance(DrmResources *) {
std::unique_ptr<Planner> planner(new Planner);
planner->AddStage<PlanStageGreedy>();
return planner;
}
#endif
}
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