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/*
* TARGA video output
*
* This video output module writes TARGA uncompressed files in 15, 24 and 32
* bit BGR format.
*
* to select the output format use the format filter:
* mplayer -vo tga -vf format=bgr15 ...
* mplayer -vo tga -vf format=bgr24 ...
* mplayer -vo tga -vf format=bgr32 ...
*
* The 16 bit files are loaded without problem from Gimp and ImageMagick but
* give an error with entice (a visualizer from the enlightenment package
* that uses the imlib2 package).
*
* In 32-bit mode the alpha channel is set to 255 (0xff). For big-endian
* machines, TGA_ALPHA32 changes from 0xff000000 to 0x000000ff, and
* TGA_SHIFT32 from 0 to 8.
*
* I need to fill the alpha channel because entice considers that alpha
* channel (and displays nothing, only the background!), but ImageMagick
* (the program display) or gimp doesn't care.
*
* Maybe it is possible (with a compilation switch) to avoid the fill of
* the alpha channel and work outside MPlayer (if needed).
*
* Daniele Forghieri ( guru@digitalfantasy.it )
*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <math.h>
#include "config.h"
#include "mp_msg.h"
#include "video_out.h"
#include "video_out_internal.h"
static const vo_info_t info =
{
"Targa output",
"tga",
"Daniele Forghieri - guru@digitalfantasy.it",
""
};
const LIBVO_EXTERN (tga)
/* locals vars */
static int frame_num = 0;
static void tga_make_header(uint8_t *h, int dx, int dy, int bpp)
{
int i;
for(i = 0; i < 18; i++) {
switch (i) {
case 2:
*h = 0x02;
break;
case 12:
*h = dx & 0xff;
break;
case 13:
*h = (dx >> 8) & 0xff;
break;
case 14:
*h = dy & 0xff;
break;
case 15:
*h = (dy >> 8) & 0xff;
break;
case 16:
*h = bpp;
break;
case 17:
*h = 0x20;
break;
default:
*h = 0;
}
++h;
}
}
static int write_tga( char *file, int bpp, int dx, int dy, uint8_t *buf, int stride)
{
int er;
FILE *fo;
fo = fopen(file, "wb");
if (fo != NULL) {
uint8_t hdr[18];
er = 0;
tga_make_header(hdr, dx, dy, bpp);
if (fwrite(hdr, sizeof(hdr), 1, fo) == 1) {
int wb;
wb = ((bpp + 7) / 8) * dx;
while (dy-- > 0) {
if (fwrite(buf, wb, 1, fo) != 1) {
er = 4;
break;
}
buf += stride;
}
}
else {
er = 2;
}
fclose(fo);
}
else {
er = 1;
}
if (er) {
fprintf(stderr, "Error writing file [%s]\n", file);
}
return er;
}
static uint32_t draw_image(mp_image_t* mpi)
{
char file[20 + 1];
snprintf (file, 20, "%08d.tga", ++frame_num);
write_tga( file,
mpi->bpp,
mpi->w,
mpi->h,
mpi->planes[0],
mpi->stride[0]);
return VO_TRUE;
}
static int config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format)
{
return 0;
}
static void draw_osd(void)
{
}
static void flip_page (void)
{
return;
}
static int draw_slice(uint8_t *srcimg[], int stride[], int w,int h,int x,int y)
{
return -1;
}
static int draw_frame(uint8_t * src[])
{
return -1;
}
static int query_format(uint32_t format)
{
switch(format){
case IMGFMT_BGR15LE:
case IMGFMT_BGR24:
case IMGFMT_BGRA:
return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW;
}
return 0;
}
static void uninit(void)
{
}
static void check_events(void)
{
}
static int preinit(const char *arg)
{
if(arg) {
mp_tmsg(MSGT_VO,MSGL_WARN, "[VO_TGA] Unknown subdevice: %s.\n",arg);
return ENOSYS;
}
return 0;
}
static int control(uint32_t request, void *data)
{
switch (request) {
case VOCTRL_DRAW_IMAGE:
return draw_image(data);
case VOCTRL_QUERY_FORMAT:
return query_format(*((uint32_t*)data));
}
return VO_NOTIMPL;
}
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