101 lines
2.9 KiB
C++
101 lines
2.9 KiB
C++
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/*
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* Copyright (C) Texas Instruments Incorporated - http://www.ti.com/
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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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#include <log/log.h>
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#include <drm/drm_fourcc.h>
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#include <hardware/hwcomposer.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include "drmfb.h"
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#include "format.h"
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#include "img_gralloc1_public.h"
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DRMFramebuffer::DRMFramebuffer(int drm_fd, buffer_handle_t handle, bool is_overlay) :
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bo(), pitches(), offsets()
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{
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if (!handle)
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return;
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uint32_t gem_handle;
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IMG_native_handle_t* img_hnd = (IMG_native_handle_t*)handle;
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int ret = drmPrimeFDToHandle(drm_fd, img_hnd->fd[0], &gem_handle);
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if (ret) {
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ALOGE("Failed to get DRM buffer object from handle");
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return;
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}
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this->width = img_hnd->iWidth;
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this->height = img_hnd->iHeight;
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this->format = convert_hal_to_drm_format(img_hnd->iFormat, true);
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this->bo[0] = gem_handle;
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this->pitches[0] = ALIGN(img_hnd->iWidth, HW_ALIGN) * get_format_bpp(img_hnd->iFormat) >> 3;
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this->offsets[0] = 0;
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this->drm_fd = drm_fd;
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if (is_overlay) {
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switch (this->format) {
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case DRM_FORMAT_NV12:
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this->bo[1] = gem_handle;
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this->pitches[0] = ALIGN(img_hnd->iWidth, HW_ALIGN);
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this->pitches[1] = this->pitches[0];
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this->offsets[1] = this->pitches[0] * img_hnd->iHeight;
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break;
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case DRM_FORMAT_ARGB8888:
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case DRM_FORMAT_XRGB8888:
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case DRM_FORMAT_RGB565:
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break;
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default:
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ALOGE("Bad format for overlay");
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return;
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}
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}
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ret = drmModeAddFB2(drm_fd, this->width, this->height,
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this->format, this->bo,
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this->pitches, this->offsets,
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&this->fb_id, 0);
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if (ret) {
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ALOGE("Could not create DRM frame buffer %d", ret);
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return;
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}
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}
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DRMFramebuffer::~DRMFramebuffer()
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{
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if (this->fb_id) {
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if (drmModeRmFB(this->drm_fd, this->fb_id))
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ALOGE("Failed to remove DRM frame buffer");
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}
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for (size_t i = 0; i < 4; i++) {
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if (this->bo[i]) {
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struct drm_gem_close close_args = {
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close_args.handle = this->bo[i],
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close_args.pad = 0,
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};
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int ret = drmIoctl(this->drm_fd, DRM_IOCTL_GEM_CLOSE, &close_args);
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if (ret) {
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ALOGE("Failed to close GEM handle");
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return;
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}
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}
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}
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}
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