/* * xa_formats.c * * Copyright (C) 1996,1997 by Mark Podlipec. * All rights reserved. * * This software may be freely copied, modified and redistributed without * fee for non-commerical purposes provided that this copyright notice is * preserved intact on all copies and modified copies. * * There is no warranty or other guarantee of fitness of this software. * It is provided solely "as is". The author(s) disclaim(s) all * responsibility and liability with respect to this software's usage * or its effect upon hardware or computer systems. * */ #include "xanim.h" xaULONG Is_DL_File(); extern xaLONG Is_QT_File(); xaULONG IFF_Read_File(); xaULONG GIF_Read_Anim(); xaULONG TXT_Read_File(); xaULONG Fli_Read_File(); xaULONG DL_Read_File(); /* xaULONG PFX_Read_File(); */ xaULONG MOVI_Read_File(); xaULONG SET_Read_File(); xaULONG RLE_Read_File(); xaULONG AVI_Read_File(); xaULONG QT_Read_File(); xaULONG JFIF_Read_File(); xaULONG MPG_Read_File(); xaULONG JMOV_Read_File(); xaULONG ARM_Read_File(); xaULONG WAV_Read_File(); xaULONG AU_Read_File(); xaULONG DUM_Read_File(); #define XA_ID_FORM 0x464f524d #define XA_ID_LIST 0x4c495354 #define XA_ID_PROP 0x50524f50 #define XA_ID_GIF8 0x47494638 #define XA_ID_TXT9 0x74787439 #define XA_ID_MOVI 0x4D4F5649 #define XA_ID_xSce 0x78536365 #define XA_ID_neEd 0x6e654564 #define XA_ID_xMov 0x784d6f76 #define XA_ID_ieSe 0x69655365 #define XA_ID_1b3 0x000001b3 #define XA_ID_1ba 0x000001ba #define XA_ID_ARMo 0x41524D6F #define XA_ID_vie 0x76696500 #define XA_ID_J_MO 0x6A5F6D6F #define XA_ID_snd 0x2e736e64 #define XA_ID_RIFF 0x52494646 #define XA_ID_AVI 0x41564920 #define XA_ID_WAVE 0x57415645 #define BUFF_FILL_SIZE 0x20 extern xaULONG XA_BUF_Init_Fill(); #define BUFF_Extract_MSB32(xin,i) \ ( ((xaULONG)(xin->buf[i])<<24) | ((xaULONG)(xin->buf[i+1])<<16) \ | ((xaULONG)(xin->buf[i+2])<<8) | (xaULONG)(xin->buf[i+3]) ) xaULONG XA_Open_And_ID_File(anim) XA_ANIM_HDR *anim; { xaLONG ret; xaULONG anim_type, lw0,lw1,lw2,lw3; XA_INPUT *xin = anim->xin; if (xin == 0) return(NOFILE_ANIM); if (xin->Open_File(xin) == xaFALSE) return(NOFILE_ANIM); ret = XA_BUF_Init_Fill(xin, BUFF_FILL_SIZE); if (ret < BUFF_FILL_SIZE) { xin->Close_File(xin); return(NOFILE_ANIM); } lw0 = BUFF_Extract_MSB32(xin,0x00); lw1 = BUFF_Extract_MSB32(xin,0x04); lw2 = BUFF_Extract_MSB32(xin,0x08); lw3 = BUFF_Extract_MSB32(xin,0x0c); anim_type = UNKNOWN_ANIM; switch(lw0) { case XA_ID_FORM: case XA_ID_LIST: case XA_ID_PROP: anim_type = IFF_ANIM; anim->desc = "IFF"; anim->Read_File = IFF_Read_File; break; case XA_ID_GIF8: anim_type = GIF_ANIM; anim->desc = "GIF"; anim->Read_File = GIF_Read_Anim; break; case XA_ID_TXT9: anim_type = TXT_ANIM; anim->desc = "TXT91"; anim->Read_File = TXT_Read_File; break; case XA_ID_MOVI: anim_type = SGI_ANIM; anim->desc = "SGI Movie"; anim->Read_File = MOVI_Read_File; break; case XA_ID_1b3: case XA_ID_1ba: anim_type = MPG_ANIM; anim->desc = "MPEG"; anim->Read_File = MPG_Read_File; break; case XA_ID_snd: anim_type = AU_ANIM; anim->desc = "AU Audio"; anim->Read_File = AU_Read_File; break; case XA_ID_RIFF: switch(lw2) { case XA_ID_AVI: anim_type = AVI_ANIM; anim->desc = "RIFF AVI"; anim->Read_File = AVI_Read_File; break; case XA_ID_WAVE: anim_type = WAV_ANIM; anim->desc = "RIFF WAVE Audio"; anim->Read_File = WAV_Read_File; break; } break; case XA_ID_ARMo: if ( (lw1 & 0xffffff00) == XA_ID_vie) { anim_type = ARM_ANIM; anim->desc = "Replay Movie"; anim->Read_File = ARM_Read_File; } break; case XA_ID_J_MO: if ( (lw1 & 0xffffff00) == XA_ID_vie) { anim_type = JMOV_ANIM; anim->desc = "JPEG Movie"; anim->Read_File = JMOV_Read_File; } break; case XA_ID_xSce: case XA_ID_xMov: if ( ((lw0 == XA_ID_xSce) && (lw1 == XA_ID_neEd)) || ((lw0 == XA_ID_xMov) && (lw1 == XA_ID_ieSe)) ) { anim_type = SET_ANIM; anim->desc = "MovieSetter"; anim->Read_File = SET_Read_File; } break; } if (anim_type == UNKNOWN_ANIM) { xaULONG ls0 = (lw0 >> 16) & 0xffff; xaULONG ls2 = (lw1 >> 16) & 0xffff; if (ls0 == 0x52cc) /* RLE */ { anim_type = RLE_ANIM; anim->desc = "Utah Raster RLE"; anim->Read_File = RLE_Read_File; } else if (ls0 == 0xffd8) /* JFIF */ { anim_type = JFIF_ANIM; anim->desc = "JFIF Image"; anim->Read_File = JFIF_Read_File; } else if (ls2 == 0x11af) { anim_type = FLI_ANIM; anim->desc = "FLI"; anim->Read_File = Fli_Read_File; } else if (ls2 == 0x12af) { anim_type = FLI_ANIM; anim->desc = "FLC"; anim->Read_File = Fli_Read_File; } else if (lw1 == 0x52434847) /* RCHG PageFlipper PFX */ { anim_type = PFX_ANIM; anim->desc = "PageFlipper PFX"; anim->Read_File = 0; /* PFX_Read_File; */ } else { /* POD failure if not random */ if ( Is_QT_File(anim->name) == xaTRUE ) { anim_type = QT_ANIM; anim->desc = "Quicktime"; anim->Read_File = QT_Read_File; } else if ( Is_DL_File(xin) == xaTRUE) { anim_type = DL_ANIM; anim->desc = "DL Animation "; anim->Read_File = DL_Read_File; } } } return(anim_type); } xaULONG Is_DL_File(xin) XA_INPUT *xin; { xaULONG ret = xaFALSE; switch( xin->buf[0] ) { case 0x03: case 0x01: ret = xaTRUE; break; case 0x02: /* 0 <= x <= 3 since unsigned < 3 suffices */ if (xin->buf[1] <= 0x03) ret = xaTRUE; break; } return(ret); } /* * DL: BYTE0 => [0x01 | 0x03] * | BYTE0 => 0x02 && (BYTE1 => [0x00 | 0x01 | 0x02 | 0x03]) * * PFX: SKIP_LONG MSB_LONG => pfx_RCHG(0x52434847) * FLI: SKIP_LONG LSB_SHORT => [0xaf11 | 0xaf12] * JFIF: MSB_SHORT 0xFF 0xD8 * MPEG: MSB_LONG 0x000001b3 OR 0x000001ba * RLE: MSB_SHORT RLE_MAGIC 0x52cc * AVI: MSBLONG0 1 2 (0=>RIFF 0x52494646 3=>AVI 0x41564920 * WAV: """""" " " 3=>WAVE 0x57415645 * ARM: 1st 7 bytes ARMovie 0x41524D6F 0x76696500 * MOVI: MOVI 0x4D4F5649 * SET: "xSceneEd"itor 0x78536365 0x6e654564 * | "xMovieSe"tter 0x784d6f76 0x69655365 * JMOV: 1st 7 bytes "j_movie" 0x6A5F6D6F 0x76696500 * * */