122 lines
2.8 KiB
C
122 lines
2.8 KiB
C
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/*
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* Copyright (C) 2020-2023 ArtInChip Technology Co., Ltd.
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*
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* Authors: <qi.xu@artinchip.com>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <linux/fb.h>
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#include <video/artinchip_fb.h>
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#include <sys/ioctl.h>
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#include <fcntl.h>
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#include <string.h>
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#include <gst/gst.h>
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#include "gstaicfb.h"
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int gst_aicfb_open()
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{
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int fd;
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fd = open("/dev/fb0", O_RDWR);
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if (fd < 0) {
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GST_ERROR_OBJECT(NULL, "open fb0 failed!");
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return -1;
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}
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return fd;
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}
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void gst_aicfb_close(int fd)
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{
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struct aicfb_layer_data layer = {0};
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//* disable layer
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layer.enable = 0;
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if(ioctl(fd, AICFB_UPDATE_LAYER_CONFIG, &layer) < 0)
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GST_ERROR_OBJECT(NULL, "fb ioctl() AICFB_UPDATE_LAYER_CONFIG failed!");
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close(fd);
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}
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int gst_get_screeninfo(int fd, int *width, int *height)
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{
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struct mpp_size s = {0};
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if (ioctl(fd, FBIOGET_FSCREENINFO, &s) == -1) {
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GST_ERROR_OBJECT(NULL, "read fixed information failed!");
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return -1;
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}
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*width = s.width;
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*height = s.height;
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return 0;
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}
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int gst_aicfb_render(int fd, struct mpp_buf* buf)
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{
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int ret = 0;
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int i;
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int dmabuf_num = 0;
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struct aicfb_alpha_config alpha = {0};
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struct aicfb_layer_data layer = {0};
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struct dma_buf_info dmabuf_fd[3];
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alpha.layer_id = 1;
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alpha.enable = 1;
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alpha.mode = 1;
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alpha.value = 0;
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ret = ioctl(fd, AICFB_UPDATE_ALPHA_CONFIG, &alpha);
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if (ret < 0)
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GST_ERROR_OBJECT(NULL, "fb ioctl() AICFB_UPDATE_ALPHA_CONFIG failed!");
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layer.layer_id = AICFB_LAYER_TYPE_VIDEO;
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layer.enable = 1;
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layer.scale_size.width = buf->size.width;
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layer.scale_size.height= buf->size.height;
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layer.pos.x = 0;
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layer.pos.y = 0;
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memcpy(&layer.buf, buf, sizeof(struct mpp_buf));
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if (buf->format == MPP_FMT_ARGB_8888) {
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dmabuf_num = 1;
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} else if (buf->format == MPP_FMT_RGBA_8888) {
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dmabuf_num = 1;
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} else if (buf->format == MPP_FMT_RGB_888) {
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dmabuf_num = 1;
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} else if (buf->format == MPP_FMT_YUV420P) {
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dmabuf_num = 3;
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} else if (buf->format == MPP_FMT_YUV444P) {
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dmabuf_num = 3;
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} else if (buf->format == MPP_FMT_YUV422P) {
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dmabuf_num = 3;
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} else if (buf->format == MPP_FMT_YUV400) {
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dmabuf_num = 1;
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} else {
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GST_ERROR_OBJECT(NULL, "no support picture foramt %d, default argb8888", buf->format);
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}
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//* add dmabuf to de driver
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for(i=0; i<dmabuf_num; i++) {
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dmabuf_fd[i].fd = buf->fd[i];
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if (ioctl(fd, AICFB_ADD_DMABUF, &dmabuf_fd[i]) < 0)
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GST_ERROR_OBJECT(NULL, "fb ioctl() AICFB_UPDATE_LAYER_CONFIG failed!");
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}
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//* update layer config (it is async interface)
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if (ioctl(fd, AICFB_UPDATE_LAYER_CONFIG, &layer) < 0)
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GST_ERROR_OBJECT(NULL, "fb ioctl() AICFB_UPDATE_LAYER_CONFIG failed!");
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//* wait vsync (wait layer config)
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ioctl(fd, AICFB_WAIT_FOR_VSYNC, NULL);
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//* remove dmabuf to de driver
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for(i=0; i<dmabuf_num; i++) {
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if (ioctl(fd, AICFB_RM_DMABUF, &dmabuf_fd[i]) < 0)
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GST_ERROR_OBJECT(NULL, "fb ioctl() AICFB_UPDATE_LAYER_CONFIG failed!");
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}
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return 0;
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}
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