From 5b3e3be1759a3139dc3e7c56527aea325a7728ef Mon Sep 17 00:00:00 2001 From: arpi Date: Tue, 10 Sep 2002 20:59:52 +0000 Subject: TGA images (-mf on:type=tga) support patch by Tilman Sauerbeck git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7363 b3059339-0415-0410-9bf9-f77b7e298cf2 --- libmpcodecs/Makefile | 2 +- libmpcodecs/vd.c | 2 + libmpcodecs/vd_mtga.c | 274 ++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 277 insertions(+), 1 deletion(-) create mode 100644 libmpcodecs/vd_mtga.c (limited to 'libmpcodecs') diff --git a/libmpcodecs/Makefile b/libmpcodecs/Makefile index 68a13c1403..26e8e4ad02 100644 --- a/libmpcodecs/Makefile +++ b/libmpcodecs/Makefile @@ -5,7 +5,7 @@ LIBNAME = libmpcodecs.a LIBNAME2 = libmpencoders.a AUDIO_SRCS=dec_audio.c ad.c ad_liba52.c ad_acm.c ad_alaw.c ad_dk3adpcm.c ad_dshow.c ad_dvdpcm.c ad_ffmpeg.c ad_hwac3.c ad_imaadpcm.c ad_mp3lib.c ad_msadpcm.c ad_pcm.c ad_roqaudio.c ad_msgsm.c ad_faad.c ad_libvorbis.c ad_libmad.c ad_realaud.c ad_libdv.c -VIDEO_SRCS=dec_video.c vd.c vd_null.c vd_realvid.c vd_cinepak.c vd_qtrpza.c vd_ffmpeg.c vd_dshow.c vd_vfw.c vd_vfwex.c vd_odivx.c vd_divx4.c vd_raw.c vd_xanim.c vd_msvidc.c vd_fli.c vd_qtrle.c vd_qtsmc.c vd_roqvideo.c vd_cyuv.c vd_nuv.c vd_libmpeg2.c vd_msrle.c vd_huffyuv.c vd_mpegpes.c vd_svq1.c vd_xvid.c vd_libdv.c vd_lcl.c +VIDEO_SRCS=dec_video.c vd.c vd_null.c vd_realvid.c vd_cinepak.c vd_qtrpza.c vd_ffmpeg.c vd_dshow.c vd_vfw.c vd_vfwex.c vd_odivx.c vd_divx4.c vd_raw.c vd_xanim.c vd_msvidc.c vd_fli.c vd_qtrle.c vd_qtsmc.c vd_roqvideo.c vd_cyuv.c vd_nuv.c vd_libmpeg2.c vd_msrle.c vd_huffyuv.c vd_mpegpes.c vd_svq1.c vd_xvid.c vd_libdv.c vd_lcl.c vd_mtga.c VFILTER_SRCS=vf.c vf_vo.c vf_crop.c vf_expand.c vf_pp.c vf_scale.c vf_format.c vf_yuy2.c vf_flip.c vf_rgb2bgr.c vf_rotate.c vf_mirror.c vf_palette.c vf_lavc.c vf_dvbscale.c vf_cropdetect.c vf_test.c vf_noise.c vf_yvu9.c vf_rectangle.c vf_lavcdeint.c vf_eq.c vf_halfpack.c ENCODER_SRCS=ve.c ve_divx4.c ve_lavc.c ve_vfw.c ve_rawrgb.c ve_libdv.c NATIVE_SRCS=native/RTjpegN.c native/cinepak.c native/cyuv.c native/fli.c native/minilzo.c native/msvidc.c native/nuppelvideo.c native/qtrle.c native/qtrpza.c native/qtsmc.c native/roqav.c native/xa_gsm.c native/svq1.c diff --git a/libmpcodecs/vd.c b/libmpcodecs/vd.c index e60041a352..c8e6756008 100644 --- a/libmpcodecs/vd.c +++ b/libmpcodecs/vd.c @@ -46,6 +46,7 @@ extern vd_functions_t mpcodecs_vd_cyuv; extern vd_functions_t mpcodecs_vd_nuv; extern vd_functions_t mpcodecs_vd_mpng; extern vd_functions_t mpcodecs_vd_ijpg; +extern vd_functions_t mpcodecs_vd_mtga; extern vd_functions_t mpcodecs_vd_libmpeg2; extern vd_functions_t mpcodecs_vd_huffyuv; extern vd_functions_t mpcodecs_vd_mpegpes; @@ -93,6 +94,7 @@ vd_functions_t* mpcodecs_vd_drivers[] = { #ifdef HAVE_JPEG &mpcodecs_vd_ijpg, #endif + &mpcodecs_vd_mtga, &mpcodecs_vd_libmpeg2, &mpcodecs_vd_huffyuv, &mpcodecs_vd_mpegpes, diff --git a/libmpcodecs/vd_mtga.c b/libmpcodecs/vd_mtga.c new file mode 100644 index 0000000000..6455c97173 --- /dev/null +++ b/libmpcodecs/vd_mtga.c @@ -0,0 +1,274 @@ +/* author: Tilman Sauerbeck + * based on: XreaL's x_r_img_tga.* (http://www.sourceforge.net/projects/xreal/) + * libtarga.* + * xli's tga.* + */ + +#include +#include + +#include "config.h" +#include "mp_msg.h" + +#include "bswap.h" +#include "postproc/rgb2rgb.h" +#include "libvo/fastmemcpy.h" + +#include "vd_internal.h" + +static vd_info_t info = +{ + "TGA Images decoder", + "mtga", + "Tilman Sauerbeck", + "Tilman Sauerbeck", + "only 24bpp and 32bpp RGB targa files support so far" +}; + +LIBVD_EXTERN(mtga) + +typedef enum +{ + TGA_NO_DATA, + TGA_UNCOMP_PALETTED, + TGA_UNCOMP_TRUECOLOR, + TGA_UNCOMP_GRAYSCALE, + TGA_RLE_PALETTED = 9, + TGA_RLE_TRUECOLOR, + TGA_RLE_GRAYSCALE +} TGAImageType; + +typedef struct +{ + unsigned char id_len; + unsigned short img_type; + + unsigned short width; + unsigned short height; + + unsigned char bpp; + unsigned char origin; /* 0 = lower left, 1 = upper left */ +} TGAInfo; + +typedef struct +{ + /* red, green, blue, alpha */ + unsigned char r; + unsigned char g; + unsigned char b; + unsigned char a; +} ColorChannels; + + +static unsigned int out_fmt = 0; + +static int last_w = -1; +static int last_h = -1; +static int last_c = -1; + +/* to set/get/query special features/parameters */ +static int control(sh_video_t *sh, int cmd, void *arg, ...) +{ + return CONTROL_UNKNOWN; +} + +/* init driver */ +static int init(sh_video_t *sh) +{ + last_w = -1; + return 1; +} + + +/* uninit driver */ +static void uninit(sh_video_t *sh) +{ +} + + +/* decode a runlength-encoded tga */ +static void decode_rle_tga(TGAInfo info, unsigned char *data, mp_image_t **mpi) +{ + ColorChannels chans = {0, 0, 0, 0}; + unsigned char repetitions, packet_header, *final; + unsigned short row, col, i; + short modifier; + + + /* if img.origin is 0, we decode from bottom to top. if it's 1, we decode from top to bottom */ + row = (info.origin) ? 0 : info.height - 1; + modifier = (info.origin) ? 1 : -1; + + for (;;) + { + final = (*mpi)->planes[0] + (*mpi)->stride[0] * row; + + for (col = 0; col < info.width;) + { + packet_header = *data++; + repetitions = 1 + (packet_header & 0x7f); + + if (packet_header & 0x80) + { + chans.b = *data++; + chans.g = *data++; + chans.r = *data++; + chans.a = (info.bpp == 32) ? *data++ : 255; + + for (i = 0; i < repetitions; i++) + { + *final++ = chans.r; + *final++ = chans.g; + *final++ = chans.b; + *final++ = chans.a; + + col++; + } + } + else /* raw packet */ + { + for (i = 0; i < repetitions; i++) + { + chans.b = *data++; + chans.g = *data++; + chans.r = *data++; + + *final++ = chans.r; + *final++ = chans.g; + *final++ = chans.b; + *final++ = chans.a = (info.bpp == 32) ? *data++ : 255; + + col++; + } + } + } + + row = row + modifier; + + if ((!info.origin && !row) || (info.origin && row >= info.height)) + break; + } + + + return; +} + + +static void decode_uncompressed_tga(TGAInfo info, unsigned char *data, mp_image_t **mpi) +{ + ColorChannels chans; + unsigned short row, col; + unsigned char *final; + short modifier; + + + /* if img.origin is 0, we decode from bottom to top. if it's 1, we decode from top to bottom */ + row = (info.origin) ? 0 : info.height - 1; + modifier = (info.origin) ? 1 : -1; + + for (;;) + { + final = (*mpi)->planes[0] + (*mpi)->stride[0] * row; + + for (col = 0; col < info.width; col++) + { + chans.b = *data++; + chans.g = *data++; + chans.r = *data++; + + *final++ = chans.r; + *final++ = chans.g; + *final++ = chans.b; + *final++ = info.bpp == 32 ? *data++ : 255; + + } + + row = row + modifier; + + if ((!info.origin && !row) || (info.origin && row >= info.height)) + break; + } + + + return; +} + + +static short read_tga_header(unsigned char *buf, TGAInfo *info) +{ + (*info).id_len = buf[0]; + + (*info).img_type = buf[2]; + + /* targa data is always stored in little endian byte order */ + (*info).width = le2me_16(*(unsigned short *) &buf[12]); + (*info).height = le2me_16(*(unsigned short *) &buf[14]); + + (*info).bpp = buf[16]; + + (*info).origin = (buf[17] & 0x20) >> 5; + + /* FIXME check for valid targa data */ + + return 0; +} + + +/* decode a frame */ +static mp_image_t *decode(sh_video_t *sh, void *raw, int len, int flags) +{ + TGAInfo info; + unsigned char *data = raw; + mp_image_t *mpi; + + + if (len <= 0) + return NULL; /* skip frame */ + + read_tga_header(data, &info); /* read information about the file */ + + if (info.bpp == 24) + out_fmt = IMGFMT_RGB24; + else if (info.bpp == 32) + out_fmt = IMGFMT_RGB32; + else + { + mp_msg(MSGT_DECVIDEO, MSGL_INFO, "Unsupported TGA type!\n"); + return NULL; + } + + if (info.img_type != TGA_UNCOMP_TRUECOLOR && info.img_type != TGA_RLE_TRUECOLOR) /* not a true color image */ + { + mp_msg(MSGT_DECVIDEO, MSGL_INFO, "Unsupported TGA type: %i!\n", info.img_type); + return NULL; + } + + /* set data to the beginning of the image data */ + data = data + 18 + info.id_len; + + /* (re)init libvo if image parameters changed (width/height/colorspace) */ + if (last_w != info.width || last_h != info.height || last_c != out_fmt) + { + last_w = info.width; + last_h = info.height; + last_c = out_fmt; + + if (!out_fmt || !mpcodecs_config_vo(sh, info.width, info.height, out_fmt)) + return NULL; + } + + if (!(mpi = mpcodecs_get_image(sh, MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE, info.width, info.height))) + return NULL; + + /* finally decode the image */ + if (info.img_type == TGA_UNCOMP_TRUECOLOR) + decode_uncompressed_tga(info, data, &mpi); + else if (info.img_type == TGA_RLE_TRUECOLOR) + decode_rle_tga(info, data, &mpi); + else + mpi = NULL; + + + return mpi; +} + -- cgit v1.2.3