mirror of
https://github.com/mpv-player/mpv
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2c949a1c25
15 bpp tga format is little endian. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@31720 b3059339-0415-0410-9bf9-f77b7e298cf2
232 lines
4.9 KiB
C
232 lines
4.9 KiB
C
/*
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* TARGA video output
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*
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* This video output module writes TARGA uncompressed files in 15, 24 and 32
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* bit BGR format.
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*
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* to select the output format use the format filter:
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* mplayer -vo tga -vf format=bgr15 ...
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* mplayer -vo tga -vf format=bgr24 ...
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* mplayer -vo tga -vf format=bgr32 ...
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*
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* The 16 bit files are loaded without problem from Gimp and ImageMagick but
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* give an error with entice (a visualizer from the enlightenment package
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* that uses the imlib2 package).
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*
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* In 32-bit mode the alpha channel is set to 255 (0xff). For big-endian
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* machines, TGA_ALPHA32 changes from 0xff000000 to 0x000000ff, and
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* TGA_SHIFT32 from 0 to 8.
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*
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* I need to fill the alpha channel because entice considers that alpha
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* channel (and displays nothing, only the background!), but ImageMagick
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* (the program display) or gimp doesn't care.
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*
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* Maybe it is possible (with a compilation switch) to avoid the fill of
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* the alpha channel and work outside MPlayer (if needed).
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*
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* Daniele Forghieri ( guru@digitalfantasy.it )
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*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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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 <errno.h>
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#include <math.h>
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#include "config.h"
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#include "mp_msg.h"
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#include "video_out.h"
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#include "video_out_internal.h"
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static const vo_info_t info =
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{
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"Targa output",
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"tga",
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"Daniele Forghieri - guru@digitalfantasy.it",
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""
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};
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const LIBVO_EXTERN (tga)
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/* locals vars */
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static int frame_num = 0;
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static void tga_make_header(uint8_t *h, int dx, int dy, int bpp)
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{
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int i;
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for(i = 0; i < 18; i++) {
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switch (i) {
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case 2:
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*h = 0x02;
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break;
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case 12:
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*h = dx & 0xff;
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break;
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case 13:
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*h = (dx >> 8) & 0xff;
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break;
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case 14:
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*h = dy & 0xff;
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break;
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case 15:
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*h = (dy >> 8) & 0xff;
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break;
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case 16:
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*h = bpp;
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break;
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case 17:
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*h = 0x20;
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break;
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default:
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*h = 0;
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}
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++h;
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}
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}
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static int write_tga( char *file, int bpp, int dx, int dy, uint8_t *buf, int stride)
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{
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int er;
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FILE *fo;
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fo = fopen(file, "wb");
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if (fo != NULL) {
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uint8_t hdr[18];
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er = 0;
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tga_make_header(hdr, dx, dy, bpp);
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if (fwrite(hdr, sizeof(hdr), 1, fo) == 1) {
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int wb;
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wb = ((bpp + 7) / 8) * dx;
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while (dy-- > 0) {
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if (fwrite(buf, wb, 1, fo) != 1) {
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er = 4;
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break;
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}
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buf += stride;
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}
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}
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else {
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er = 2;
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}
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fclose(fo);
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}
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else {
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er = 1;
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}
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if (er) {
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fprintf(stderr, "Error writing file [%s]\n", file);
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}
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return er;
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}
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static uint32_t draw_image(mp_image_t* mpi)
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{
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char file[20 + 1];
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snprintf (file, 20, "%08d.tga", ++frame_num);
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write_tga( file,
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mpi->bpp,
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mpi->w,
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mpi->h,
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mpi->planes[0],
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mpi->stride[0]);
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return VO_TRUE;
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}
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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)
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{
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return 0;
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}
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static void draw_osd(void)
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{
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}
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static void flip_page (void)
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{
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return;
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}
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static int draw_slice(uint8_t *srcimg[], int stride[], int w,int h,int x,int y)
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{
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return -1;
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}
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static int draw_frame(uint8_t * src[])
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{
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return -1;
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}
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static int query_format(uint32_t format)
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{
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switch(format){
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case IMGFMT_BGR15LE:
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case IMGFMT_BGR24:
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case IMGFMT_BGRA:
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return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW;
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}
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return 0;
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}
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static void uninit(void)
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{
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}
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static void check_events(void)
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{
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}
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static int preinit(const char *arg)
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{
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if(arg) {
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mp_tmsg(MSGT_VO,MSGL_WARN, "[VO_TGA] Unknown subdevice: %s.\n",arg);
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return ENOSYS;
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}
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return 0;
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}
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static int control(uint32_t request, void *data)
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{
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switch (request) {
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case VOCTRL_DRAW_IMAGE:
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return draw_image(data);
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case VOCTRL_QUERY_FORMAT:
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return query_format(*((uint32_t*)data));
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}
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return VO_NOTIMPL;
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}
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