mirror of https://github.com/mpv-player/mpv
240 lines
6.0 KiB
C
240 lines
6.0 KiB
C
/*
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* vesa_lvo.c
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*
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* Copyright (C) Nick Kurshev <nickols_k@mail.ru> - Oct 2001
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*
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* You can redistribute this file under terms and conditions
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* of GNU General Public licence v2.
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*
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* This file contains vo_vesa interface to Linux Video Overlay.
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* (Partly based on vo_mga.c from mplayer's package)
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*/
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#include <inttypes.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "vesa_lvo.h"
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#include "img_format.h"
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#include "../drivers/mga_vid.h" /* <- should be changed to "linux/'something'.h" */
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#include "fastmemcpy.h"
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#include "../mmx_defs.h"
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#define WIDTH_ALIGN 32 /* should be 16 for radeons */
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#define NUM_FRAMES 2
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static uint8_t *frames[NUM_FRAMES];
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static int lvo_handler = -1;
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static uint8_t *lvo_mem = NULL;
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static uint8_t next_frame;
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static mga_vid_config_t mga_vid_config;
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static unsigned image_bpp,image_height,image_width;
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#define PIXEL_SIZE() ((video_mode_info.BitsPerPixel+7)/8)
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#define SCREEN_LINE_SIZE(pixel_size) (video_mode_info.XResolution*(pixel_size) )
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#define IMAGE_LINE_SIZE(pixel_size) (image_width*(pixel_size))
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int vlvo_init(const char *drvname,unsigned src_width,unsigned src_height,
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unsigned x_org,unsigned y_org,unsigned dst_width,
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unsigned dst_height,unsigned format,unsigned dest_bpp)
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{
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size_t i,awidth;
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lvo_handler = open(drvname,O_RDWR);
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if(lvo_handler == -1)
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{
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printf("Couldn't open %s\n",drvname);
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return -1;
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}
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image_width = src_width;
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image_height = src_height;
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mga_vid_config.version=MGA_VID_VERSION;
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mga_vid_config.format=format;
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awidth = (src_width + (WIDTH_ALIGN-1)) & ~(WIDTH_ALIGN-1);
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switch(format){
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case IMGFMT_YV12:
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case IMGFMT_I420:
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case IMGFMT_IYUV:
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image_bpp=16;
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mga_vid_config.frame_size = awidth*src_height+(awidth*src_height)/2;
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break;
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case IMGFMT_YUY2:
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case IMGFMT_UYVY:
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image_bpp=16;
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mga_vid_config.frame_size = awidth*src_height*2;
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break;
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case IMGFMT_RGB15:
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case IMGFMT_BGR15:
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case IMGFMT_RGB16:
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case IMGFMT_BGR16:
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image_bpp=16;
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mga_vid_config.frame_size = awidth*src_height*2;
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break;
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case IMGFMT_RGB24:
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case IMGFMT_BGR24:
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image_bpp=24;
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mga_vid_config.frame_size = awidth*src_height*3;
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break;
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case IMGFMT_RGB32:
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case IMGFMT_BGR32:
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image_bpp=32;
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mga_vid_config.frame_size = awidth*src_height*4;
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break;
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default:
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printf("vesa_lvo: invalid output format %s(%0X)\n",vo_format_name(format),format);
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return -1;
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}
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mga_vid_config.colkey_on=0;
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mga_vid_config.src_width = src_width;
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mga_vid_config.src_height= src_height;
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mga_vid_config.dest_width = dst_width;
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mga_vid_config.dest_height= dst_height;
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mga_vid_config.x_org=x_org;
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mga_vid_config.y_org=y_org;
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mga_vid_config.num_frames=NUM_FRAMES;
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if (ioctl(lvo_handler,MGA_VID_CONFIG,&mga_vid_config))
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{
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perror("Error in mga_vid_config ioctl()");
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printf("Your mga_vid driver version is incompatible with this MPlayer version!\n");
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return -1;
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}
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ioctl(lvo_handler,MGA_VID_ON,0);
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frames[0] = (char*)mmap(0,mga_vid_config.frame_size*mga_vid_config.num_frames,PROT_WRITE,MAP_SHARED,lvo_handler,0);
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for(i=1;i<NUM_FRAMES;i++)
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frames[i] = frames[i-1] + mga_vid_config.frame_size;
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next_frame = 0;
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lvo_mem = frames[next_frame];
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/*clear the buffer*/
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memset(frames[0],0x80,mga_vid_config.frame_size*mga_vid_config.num_frames);
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return 0;
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}
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void vlvo_term( void )
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{
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ioctl( lvo_handler,MGA_VID_OFF,0 );
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munmap(frames[0],mga_vid_config.frame_size*mga_vid_config.num_frames);
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if(lvo_handler != -1) close(lvo_handler);
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}
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uint32_t vlvo_draw_slice(uint8_t *image[], int stride[], int w,int h,int x,int y)
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{
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#if 0
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/* original vo_mga stuff */
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uint8_t *src;
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uint8_t *dest;
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uint32_t bespitch,bespitch2,srcpitch;
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int i;
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bespitch = (mga_vid_config.src_width + (WIDTH_ALIGN-1)) & ~(WIDTH_ALIGN-1);
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bespitch2 = bespitch/2;
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dest = lvo_mem + bespitch * y + x;
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src = image[0];
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for(i=0;i<h;i++){
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memcpy(dest,src,w);
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src+=stride[0];
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dest += bespitch;
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}
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w/=2;h/=2;x/=2;y/=2;
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dest = lvo_mem + bespitch*mga_vid_config.src_height + bespitch2 * y + x;
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src = image[1];
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for(i=0;i<h;i++){
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memcpy(dest,src,w);
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src+=stride[1];
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dest += bespitch2;
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}
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dest = lvo_mem + bespitch*mga_vid_config.src_height
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+ bespitch*mga_vid_config.src_height / 4
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+ bespitch2 * y + x;
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src = image[2];
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for(i=0;i<h;i++){
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memcpy(dest,src,w);
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src+=stride[2];
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dest += bespitch2;
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}
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#else
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/* vo_xv stuff: slightly better for YV12 on radeon_vid */
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uint8_t *src;
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uint8_t *dst;
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int i;
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dst = lvo_mem + image_width * y + x;
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src = image[0];
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if(w==stride[0] && w==image_width) memcpy(dst,src,w*h);
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else
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for(i=0;i<h;i++)
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{
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memcpy(dst,src,w);
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src+=stride[0];
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dst+=image_width;
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}
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x/=2;y/=2;w/=2;h/=2;
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dst = lvo_mem + image_width * image_height + image_width/2 * y + x;
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src = image[2];
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if(w==stride[2] && w==image_width/2) memcpy(dst,src,w*h);
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else
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for(i=0;i<h;i++)
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{
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memcpy(dst,src,w);
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src+=stride[2];
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dst+=image_width/2;
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}
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dst = lvo_mem + image_width * image_height * 5 / 4 + image_width/2 * y + x;
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src = image[1];
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if(w==stride[1] && w==image_width/2) memcpy(dst,src,w*h);
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else
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for(i=0;i<h;i++)
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{
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memcpy(dst,src,w);
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src+=stride[1];
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dst+=image_width/2;
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}
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#endif
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return 0;
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}
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uint32_t vlvo_draw_frame(uint8_t *src[])
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{
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size_t i, ssize;
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uint8_t *dest;
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const uint8_t *sptr;
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ssize = IMAGE_LINE_SIZE((image_bpp+7)/8);
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dest = lvo_mem;
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sptr = src[0];
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for(i=0;i<image_height;i++)
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{
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memcpy(dest,sptr,ssize);
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sptr += ssize;
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dest += ssize;
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}
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}
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void vlvo_flip_page(void)
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{
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ioctl(lvo_handler,MGA_VID_FSEL,&next_frame);
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next_frame=(next_frame+1)%mga_vid_config.num_frames;
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lvo_mem=frames[next_frame];
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}
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void vlvo_draw_osd(void)
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{
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/* TODO: hw support */
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}
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uint32_t vlvo_query_info(uint32_t format)
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{
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return 1;
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}
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