From a80ed8913a1eedecab0757194eacbefd7f1f081d Mon Sep 17 00:00:00 2001 From: arpi Date: Wed, 23 Oct 2002 00:26:27 +0000 Subject: -vop bmovl - BitMap OVerLay videofilter for MPlayer patch by Per Wigren TODO: -dr, MMX opt, fix alpha-only png, other colorspaces git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7856 b3059339-0415-0410-9bf9-f77b7e298cf2 --- libmpcodecs/vf_bmovl.c | 441 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 441 insertions(+) create mode 100644 libmpcodecs/vf_bmovl.c (limited to 'libmpcodecs/vf_bmovl.c') diff --git a/libmpcodecs/vf_bmovl.c b/libmpcodecs/vf_bmovl.c new file mode 100644 index 0000000000..b90e4bf6be --- /dev/null +++ b/libmpcodecs/vf_bmovl.c @@ -0,0 +1,441 @@ +/* vf_bmovl.c v0.9.1 - BitMap OVerLay videofilter for MPlayer + * + * (C) 2002 Per Wigren + * Licenced under the GNU General Public License + * + * Use MPlayer as a framebuffer to read bitmaps and commands from a FIFO + * and display them in the window. + * + * FIXME: INSTRUCTION IS OUT OF DATE!!! + * + * It understands the following format: + * COMMAND width height xpos ypos alpha clear + * + * Commands are: + * RGBA32 Followed by WIDTH*HEIGHT of raw RGBA32 data. + * BGRA32 Followed by WIDTH*HEIGHT of raw BGRA32 data. + * RGB24 Followed by WIDTH*HEIGHT of raw RGB24 data. + * ALPHA Set alpha for area. Values can be -255 to 255. + * 0 = No change + * CLEAR Zero area + * OPAQUE Disable all alpha transparency! + * Send an ALPHA command with 0's to enable again! + * HIDE Hide bitmap + * SHOW Show bitmap + * + * Arguments are: + * width, height Size of image/area + * xpos, ypos Start blitting at X/Y position + * alpha Set alpha difference. 0 means same as original. + * 255 makes everything opaque + * -255 makes everything transparent + * If you set this to -255 you can then send a sequence of + * ALPHA-commands to set the area to -225, -200, -175 etc + * for a nice fade-in-effect! ;) + * clear Clear the framebuffer before blitting. 1 means clear. + * If 0, the image will just be blitted on top of the old + * one, so you don't need to send 1,8MB of RGBA32 data + * everytime a small part of the screen is updated. + * + * Note that you always have to send all arguments, even if they are not + * used for a particular command! + * + * Arguments for the filter are hidden:opaque:fifo + * For example 1:0:/tmp/myfifo.fifo will start the filter hidden, transparent + * and use /tmp/myfifo.fifo as the fifo. + * + * If you find bugs, please send me patches! ;) + * + * This filter was developed for use in Freevo (http://freevo.sf.net), but + * anyone is free to use it! ;) + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include "mp_image.h" +#include "vf.h" +#include "img_format.h" + +#include "../libvo/fastmemcpy.h" + +#define IS_RAWIMG 0x100 +#define IS_IMG 0x200 + +#define NONE 0x000 +#define IMG_RGBA32 0x101 +#define IMG_ABGR32 0x102 +#define IMG_RGB24 0x103 +#define IMG_BGR24 0x104 +#define IMG_PNG 0x201 +#define CMD_CLEAR 0x001 +#define CMD_ALPHA 0x002 + +#define TRUE 1 +#define FALSE 0 + +#define MAX(a,b) ((a) > (b) ? (a) : (b)) +#define MIN(a,b) ((a) < (b) ? (a) : (b)) +#define INRANGE(a,b,c) ( ((a) < (b)) ? (b) : ( ((a) > (c)) ? (c) : (a) ) ) + +#define rgb2y(R,G,B) ( (0.257 * R) + (0.504 * G) + (0.098 * B) + 16 ) +#define rgb2u(R,G,B) ( -(0.148 * R) - (0.291 * G) + (0.439 * B) + 128 ) +#define rgb2v(R,G,B) ( (0.439 * R) - (0.368 * G) - (0.071 * B) + 128 ) + +#define DBG(a) (printf("DEBUG: %d\n", a)) + +struct vf_priv_s { + int w, h, x1, y1, x2, y2; + struct { + unsigned char *y, *u, *v, *a, *oa; + } bitmap; + int stream_fd; + fd_set stream_fdset; + int opaque, hidden; +}; + +static int +query_format(struct vf_instance_s* vf, unsigned int fmt){ + if(fmt==IMGFMT_YV12) return VFCAP_CSP_SUPPORTED; + return 0; +} + + +static int +config(struct vf_instance_s* vf, + int width, int height, int d_width, int d_height, + unsigned int flags, unsigned int outfmt) +{ + vf->priv->bitmap.y = malloc( width*height ); + vf->priv->bitmap.u = malloc( width*height/4 ); + vf->priv->bitmap.v = malloc( width*height/4 ); + vf->priv->bitmap.a = malloc( width*height ); + vf->priv->bitmap.oa = malloc( width*height ); + if(!( vf->priv->bitmap.y && + vf->priv->bitmap.u && + vf->priv->bitmap.v && + vf->priv->bitmap.a && + vf->priv->bitmap.oa )) { + fprintf(stderr, "vf_bmovl: Could not allocate memory for bitmap buffer: %s\n", strerror(errno) ); + exit(10); + } + + // Set default to black... + memset( vf->priv->bitmap.u, 128, width*height/4 ); + memset( vf->priv->bitmap.v, 128, width*height/4 ); + + vf->priv->w = vf->priv->x1 = width; + vf->priv->h = vf->priv->y1 = height; + vf->priv->y2 = vf->priv->x2 = 0; + + return vf_next_config(vf, width, height, d_width, d_height, flags, outfmt); +} + +static void +uninit(struct vf_instance_s *vf) +{ + if(vf->priv) { + free(vf->priv->bitmap.y); + free(vf->priv->bitmap.u); + free(vf->priv->bitmap.v); + free(vf->priv->bitmap.a); + free(vf->priv->bitmap.oa); + free(vf->priv); + } +} + +static int +_read_cmd(int fd, char *cmd, char *args) { + int done=FALSE, pos=0; + char tmp; + + while(!done) { + if(! read( fd, &tmp, 1 ) ) return FALSE; + if( (tmp>='A' && tmp<='Z') || (tmp>='0' && tmp<='9') ) + cmd[pos]=tmp; + else if(tmp == ' ') { + cmd[pos]='\0'; + done=TRUE; + } + else if(tmp == '\n') { + cmd[pos]='\0'; + args[0]='\0'; + return TRUE; + } + if(pos++>20) { + cmd[0]='\0'; + return TRUE; + } + } + done=FALSE; pos=0; + while(!done) { + if(! read( fd, &tmp, 1 ) ) return FALSE; + if( (tmp >= ' ') && (pos<100) ) args[pos]=tmp; + else { + args[pos]='\0'; + done=TRUE; + } + pos++; + } + return TRUE; +} + + +static int +put_image(struct vf_instance_s* vf, mp_image_t* mpi){ + int buf_x=0, buf_y=0, buf_pos=0; + int xpos=0, ypos=0, pos=0; + unsigned char red=0, green=0, blue=0; + int alpha; + mp_image_t* dmpi; + + dmpi = vf_get_image(vf->next, mpi->imgfmt, MP_IMGTYPE_TEMP, + MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE, + mpi->w, mpi->h); + + memcpy( dmpi->planes[0], mpi->planes[0], mpi->stride[0] * mpi->height); + memcpy( dmpi->planes[1], mpi->planes[1], mpi->stride[1] * mpi->chroma_height); + memcpy( dmpi->planes[2], mpi->planes[2], mpi->stride[2] * mpi->chroma_height); + + if(vf->priv->stream_fd >= 0) { + struct timeval tv; + + FD_SET( vf->priv->stream_fd, &vf->priv->stream_fdset ); + tv.tv_sec=0; tv.tv_usec=0; + + if( select( vf->priv->stream_fd+1, &vf->priv->stream_fdset, NULL, NULL, &tv ) > 0) { + // We've got new data from the FIFO + + char cmd[20], args[100]; + int imgw,imgh,imgx,imgy,clear,imgalpha,pxsz=1,command; + unsigned char *buffer = NULL; + + if(! _read_cmd( vf->priv->stream_fd, cmd, args) ) { + fprintf(stderr, "\nvf_bmovl: Error reading commands: %s\n\n", strerror(errno)); + exit(10); + } + printf("\nDEBUG: Got: %s+%s\n", cmd, args); + + command=NONE; + if ( strncmp(cmd,"RGBA32",6)==0 ) { pxsz=4; command = IMG_RGBA32; } + else if( strncmp(cmd,"ABGR32",6)==0 ) { pxsz=4; command = IMG_ABGR32; } + else if( strncmp(cmd,"RGB24" ,5)==0 ) { pxsz=3; command = IMG_RGB24; } + else if( strncmp(cmd,"BGR24" ,5)==0 ) { pxsz=3; command = IMG_BGR24; } + else if( strncmp(cmd,"CLEAR" ,5)==0 ) { pxsz=1; command = CMD_CLEAR; } + else if( strncmp(cmd,"ALPHA" ,5)==0 ) { pxsz=1; command = CMD_ALPHA; } + else if( strncmp(cmd,"OPAQUE",6)==0 ) vf->priv->opaque=TRUE; + else if( strncmp(cmd,"SHOW", 4)==0 ) vf->priv->hidden=FALSE; + else if( strncmp(cmd,"HIDE", 4)==0 ) vf->priv->hidden=TRUE; + else if( strncmp(cmd,"FLUSH" ,5)==0 ) return vf_next_put_image(vf, dmpi); + else { + fprintf(stderr, "\nvf_bmovl: Unknown command: '%s'. Ignoring.\n", cmd); + return vf_next_put_image(vf, dmpi); + } + + if(command == CMD_ALPHA) { + sscanf( args, "%d %d %d %d %d", &imgw, &imgh, &imgx, &imgy, &imgalpha); + printf("\nDEBUG: ALPHA: %d %d %d %d %d\n\n", + imgw, imgh, imgx, imgy, imgalpha); + if(imgw==0 && imgh==0) vf->priv->opaque=FALSE; + } + + if(command & IS_RAWIMG) { + sscanf( args, "%d %d %d %d %d %d", + &imgw, &imgh, &imgx, &imgy, &imgalpha, &clear); + printf("\nDEBUG: RAWIMG: %d %d %d %d %d %d\n\n", + imgw, imgh, imgx, imgy, imgalpha, clear); + + buffer = malloc(imgw*imgh*pxsz); + if(!buffer) { + fprintf(stderr, "\nvf_bmovl: Couldn't allocate temporary buffer! Skipping...\n\n"); + return vf_next_put_image(vf, dmpi); + } + printf("Got %d bytes...\n", read( vf->priv->stream_fd, buffer, (imgw*imgh*pxsz) ) ); + + if(clear) { + memset( vf->priv->bitmap.y, 0, vf->priv->w*vf->priv->h ); + memset( vf->priv->bitmap.u, 128, vf->priv->w*vf->priv->h/4 ); + memset( vf->priv->bitmap.v, 128, vf->priv->w*vf->priv->h/4 ); + memset( vf->priv->bitmap.a, 0, vf->priv->w*vf->priv->h ); + memset( vf->priv->bitmap.oa, 0, vf->priv->w*vf->priv->h ); + vf->priv->x1 = dmpi->width; + vf->priv->y1 = dmpi->height; + vf->priv->x2 = vf->priv->y2 = 0; + } + // Define how much of our bitmap that contains graphics! + vf->priv->x1 = MAX( 0, MIN(vf->priv->x1, imgx) ); + vf->priv->y1 = MAX( 0, MIN(vf->priv->y1, imgy) ); + vf->priv->x2 = MIN( vf->priv->w, MAX(vf->priv->x2, ( imgx + imgw)) ); + vf->priv->y2 = MIN( vf->priv->h, MAX(vf->priv->y2, ( imgy + imgh)) ); + } + + if( command == CMD_CLEAR ) { + sscanf( args, "%d %d %d %d", &imgw, &imgh, &imgx, &imgy); + printf("\nDEBUG: CLEAR: %d %d %d %d\n\n", imgw, imgh, imgx, imgy); + + for( ypos=imgy ; (ypos < (imgy+imgh)) && (ypos < vf->priv->y2) ; ypos++ ) { + memset( vf->priv->bitmap.y + (ypos*vf->priv->w) + imgx, 0, imgw ); + memset( vf->priv->bitmap.a + (ypos*vf->priv->w) + imgx, 0, imgw ); + memset( vf->priv->bitmap.oa + (ypos*vf->priv->w) + imgx, 0, imgw ); + if(ypos%2) { + memset( vf->priv->bitmap.u + ((ypos/2)*dmpi->stride[1]) + (imgx/2), 128, imgw/2 ); + memset( vf->priv->bitmap.v + ((ypos/2)*dmpi->stride[2]) + (imgx/2), 128, imgw/2 ); + } + } // Recalculate area that contains graphics + if( (imgx <= vf->priv->x1) && ( (imgw+imgx) >= vf->priv->x2) ) { + if( (imgy <= vf->priv->y1) && ( (imgy+imgh) >= vf->priv->y1) ) + vf->priv->y1 = imgy+imgh; + if( (imgy <= vf->priv->y2) && ( (imgy+imgh) >= vf->priv->y2) ) + vf->priv->y2 = imgy; + } + if( (imgy <= vf->priv->y1) && ( (imgy+imgh) >= vf->priv->y2) ) { + if( (imgx <= vf->priv->x1) && ( (imgx+imgw) >= vf->priv->x1) ) + vf->priv->x1 = imgx+imgw; + if( (imgx <= vf->priv->x2) && ( (imgx+imgw) >= vf->priv->x2) ) + vf->priv->x2 = imgx; + } + return vf_next_put_image(vf, dmpi); + } + + for( buf_y=0 ; (buf_y < imgh) && (buf_y < (vf->priv->h-imgy)) ; buf_y++ ) { + for( buf_x=0 ; (buf_x < (imgw*pxsz)) && (buf_x < ((vf->priv->w+imgx)*pxsz)) ; buf_x += pxsz ) { + if(command & IS_RAWIMG) buf_pos = (buf_y * imgw * pxsz) + buf_x; + pos = ((buf_y+imgy) * vf->priv->w) + ((buf_x/pxsz)+imgx); + + switch(command) { + case IMG_RGBA32: + red = buffer[buf_pos+0]; + green = buffer[buf_pos+1]; + blue = buffer[buf_pos+2]; + alpha = buffer[buf_pos+3]; + break; + case IMG_ABGR32: + alpha = buffer[buf_pos+0]; + blue = buffer[buf_pos+1]; + green = buffer[buf_pos+2]; + red = buffer[buf_pos+3]; + break; + case IMG_RGB24: + red = buffer[buf_pos+0]; + green = buffer[buf_pos+1]; + blue = buffer[buf_pos+2]; + alpha = 0xFF; + break; + case IMG_BGR24: + blue = buffer[buf_pos+0]; + green = buffer[buf_pos+1]; + red = buffer[buf_pos+2]; + alpha = 0xFF; + break; + case CMD_ALPHA: + vf->priv->bitmap.a[pos] = INRANGE((vf->priv->bitmap.oa[pos]+imgalpha),0,255); + break; + default: + fprintf(stderr, "vf_bmovl: Internal error!\n"); + exit( 10 ); + } + if( command & IS_RAWIMG ) { + vf->priv->bitmap.y[pos] = rgb2y(red,green,blue); + vf->priv->bitmap.oa[pos] = alpha; + vf->priv->bitmap.a[pos] = INRANGE((alpha+imgalpha),0,255); + if((buf_y%2) && ((buf_x/pxsz)%2)) { + pos = ( ((buf_y+imgy)/2) * dmpi->stride[1] ) + (((buf_x/pxsz)+imgx)/2); + vf->priv->bitmap.u[pos] = rgb2u(red,green,blue); + vf->priv->bitmap.v[pos] = rgb2v(red,green,blue); + } + } + } // for buf_x + } // for buf_y + free (buffer); + } else if(errno) fprintf(stderr, "\nvf_bmovl: Error %d in fifo: %s\n\n", errno, strerror(errno)); + } + + if(vf->priv->hidden) return vf_next_put_image(vf, dmpi); + + if(vf->priv->opaque) { // Just copy buffer memory to screen + for( ypos=vf->priv->y1 ; ypos < vf->priv->y2 ; ypos++ ) { + memcpy( dmpi->planes[0] + (ypos*dmpi->stride[0]) + vf->priv->x1, + vf->priv->bitmap.y + (ypos*vf->priv->w) + vf->priv->x1, + vf->priv->x2 - vf->priv->x1 ); + if(ypos%2) { + memcpy( dmpi->planes[1] + ((ypos/2)*dmpi->stride[1]) + (vf->priv->x1/2), + vf->priv->bitmap.u + (((ypos/2)*(vf->priv->w)/2)) + (vf->priv->x1/2), + (vf->priv->x2 - vf->priv->x1)/2 ); + memcpy( dmpi->planes[2] + ((ypos/2)*dmpi->stride[2]) + (vf->priv->x1/2), + vf->priv->bitmap.v + (((ypos/2)*(vf->priv->w)/2)) + (vf->priv->x1/2), + (vf->priv->x2 - vf->priv->x1)/2 ); + } + } + } else { // Blit the bitmap to the videoscreen, pixel for pixel + for( ypos=vf->priv->y1 ; ypos < vf->priv->y2 ; ypos++ ) { + for ( xpos=vf->priv->x1 ; xpos < vf->priv->x2 ; xpos++ ) { + pos = (ypos * dmpi->stride[0]) + xpos; + + alpha = vf->priv->bitmap.a[pos]; + + if (alpha == 0) continue; // Completly transparent pixel + + if (alpha == 255) { // Opaque pixel + dmpi->planes[0][pos] = vf->priv->bitmap.y[pos]; + if ((ypos%2) && (xpos%2)) { + pos = ( (ypos/2) * dmpi->stride[1] ) + (xpos/2); + dmpi->planes[1][pos] = vf->priv->bitmap.u[pos]; + dmpi->planes[2][pos] = vf->priv->bitmap.v[pos]; + } + } else { // Alphablended pixel + dmpi->planes[0][pos] = (dmpi->planes[0][pos]*(1.0-(alpha/255.0))) + (vf->priv->bitmap.y[pos]*(alpha/255.0)); + if ((ypos%2) && (xpos%2)) { + pos = ( (ypos/2) * dmpi->stride[1] ) + (xpos/2); + dmpi->planes[1][pos] = (dmpi->planes[1][pos]*(1.0-(alpha/255.0))) + (vf->priv->bitmap.u[pos]*(alpha/255.0)); + dmpi->planes[2][pos] = (dmpi->planes[2][pos]*(1.0-(alpha/255.0))) + (vf->priv->bitmap.v[pos]*(alpha/255.0)); + } + } + } // for xpos + } // for ypos + } // if !opaque + return vf_next_put_image(vf, dmpi); +} // put_image + +static int +vf_open(vf_instance_t* vf, char* args) +{ + char filename[1000]; + + vf->config = config; + vf->put_image = put_image; + vf->query_format = query_format; + vf->uninit = uninit; + + vf->priv = malloc(sizeof(struct vf_priv_s)); + + if( sscanf(args, "%d:%d:%s", &vf->priv->hidden, &vf->priv->opaque, filename) < 3 ) { + fprintf(stderr, "vf_bmovl: Bad arguments!\n"); + fprintf(stderr, "vf_bmovl: Arguments are 'bool hidden:bool opaque:string fifo'\n"); + exit(5); + } + + vf->priv->stream_fd = open(filename, O_RDWR); + if(vf->priv->stream_fd >= 0) { + FD_ZERO( &vf->priv->stream_fdset ); + printf("vf_bmovl: Opened fifo %s as FD %d\n", filename, vf->priv->stream_fd); + } else { + fprintf(stderr, "vf_bmovl: Error! Couldn't open FIFO %s: %s\n", filename, strerror(errno)); + vf->priv->stream_fd = -1; + } + + return TRUE; +} + +vf_info_t vf_info_bmovl = { + "Read bitmaps from a FIFO and display them in window", + "bmovl", + "Per Wigren", + "", + vf_open +}; -- cgit v1.2.3