#ifndef VLAB_CONTROL_H #define VLAB_CONTROL_H /* ** VLab hardware control stuff. ** © 2002 Kakace Productions ** */ #include /*------------------------------------------------------------------------------------------------*/ struct VLabInfos { UBYTE *vi_VLabAddress; /* Board's address */ ULONG vi_BoardType; /* 0 = VLab Classic, 65538 = VLab Y/C */ void (*vi_fSkipLuma)(void *VLabAddress, ULONG frame, ULONG count); void (*vi_fSkipChroma)(void *VLabAddress, ULONG frame, ULONG count); void (*vi_fGrabLuma)(void *VLabAddress, UBYTE *output, ULONG output_spacing, ULONG width, ULONG height, ULONG line_skip, ULONG flags); void (*vi_fGrabChroma)(void *VLabAddress, UBYTE *output, ULONG output_spacing, ULONG width, ULONG height, ULONG line_skip); ULONG vi_XPos; /* X position [0; 716] */ ULONG vi_YPos; /* Y position [0; 516] (NTSC) or [0; 616] (PAL) */ ULONG vi_Width; /* Scan width [4; 720] */ ULONG vi_Height; /* Scan height [4; 520] (NTSC) or [4; 620] (PAL) */ UBYTE *vi_YBuff; /* Y buffer : numPixels */ UBYTE *vi_UVBuff; /* UV buffer : sizeof(YBuff) / RATIO_YUV * 2 */ UBYTE vi_Flags; /* Various flags (see below) */ UBYTE vi_Video; /* Video standard (VIDEO_#?) */ UBYTE vi_Hue; /* Hue correction (NTSC) */ UBYTE vi_Pad; UWORD vi_ImageWidth; /* (current resolution) */ UWORD vi_ImageHeight; /* (current video-mode) */ }; extern struct VLabInfos VLabPrivate; /* ** sp_Flags definitions */ #define VLABF_VTR 1 /* 1 = VTR ON (Video Tape Recorder) */ #define VLABF_COLOR 4 /* 1 = Color image */ #define VLABF_LACE 8 /* 1 = Interlaced mode */ #define VLABF_HIRES 16 /* 1 = HiRes mode */ #define VLABF_PREFILTER 32 /* 1 = Luminance pre-filter OFF */ #define VLABF_BW_SOURCE 64 /* 1 = B&W source */ /* ** sp_Filters definitions ** Each definition matches the horizontal peaking register assignments (SAA9051) */ #define VLABF_BANDPASS_MASK 0x03 #define VLABF_BANDPASS_SHIFT 4 #define FILTER_BANDPASS_R(x) ((x >> VLABF_BANDPASS_SHIFT) & VLABF_BANDPASS_MASK) #define FILTER_BANDPASS_W(r,x) ((r & ~(VLABF_BANDPASS_MASK << VLABF_BANDPASS_SHIFT))|((x & VLABF_BANDPASS_MASK) << VLABF_BANDPASS_SHIFT)) #define VLABF_BANDPASS_41 0 /* 4.1 MHz */ #define VLABF_BANDPASS_38 1 /* 3.8 MHz */ #define VLABF_BANDPASS_26 2 /* 2.6 MHz */ #define VLABF_BANDPASS_29 3 /* 2.9 MHz */ #define VLABF_CORING_MASK 0x03 #define VLABF_CORING_SHIFT 2 #define FILTER_CORING_R(x) ((x >> VLABF_CORING_SHIFT) & VLABF_CORING_MASK) #define FILTER_CORING_W(r,x) ((r & ~(VLABF_CORING_MASK << VLABF_CORING_SHIFT))|((x & VLABF_CORING_MASK) << VLABF_CORING_SHIFT)) #define VLABF_CORING_OFF 0 #define VLABF_CORING_4BITS 1 #define VLABF_CORING_5BITS 2 #define VLABF_CORING_6BITS 3 #define VLABF_FACTOR_MASK 0x03 #define FILTER_FACTOR_R(x) (x & VLABF_FACTOR_MASK) #define FILTER_FACTOR_W(r,x) ((r & ~VLABF_FACTOR_MASK)|(x & VLABF_FACTOR_MASK)) #define VLABF_FACTOR_0 0 /* 0 */ #define VLABF_FACTOR_25 1 /* 0.25 */ #define VLABF_FACTOR_50 2 /* 0.50 */ #define VLABF_FACTOR_100 3 /* 1 */ /* ** Various constants. Some are fixed settings (hardware dependent). */ #define VLAB_MAXWIDTH 720 #define VLAB_MAXHEIGHT_PAL 620 #define VLAB_MAXHEIGHT_NTSC 520 #define VLAB_RATIO_YUV 4 #define VLAB_GAMMA_MIN -30 #define VLAB_GAMMA_MAX 30 #define VLAB_BRIGHT_MIN -40 #define VLAB_BRIGHT_MAX 40 #define VLAB_CONTRAST_MIN -40 #define VLAB_CONTRAST_MAX 40 enum VLab_VideoStd { /* ID Chrom. trap Colour carrier #lines */ VIDEO_PAL_B, /* 0 4.43 4 433 618.75 625 */ VIDEO_PAL_N, /* 1 4.43 3 582 056.25 625 */ VIDEO_525 = 2, /* 2 */ VIDEO_PAL_M, /* 2 4.43 3 575 611.49 525 */ VIDEO_NTSC_443, /* 3 3.58 4 433 618.75 525 */ VIDEO_NTSC_M /* 4 3.58 3 579 545.00 525 */ }; /*------------------------------------------------------------------------------------------------*/ /*========================================== PROTOTYPES ==========================================*/ /*------------------------------------------------------------------------------------------------*/ ULONG VLab_IdentifyHardware(void); int VLab_OwnHardware(void); void VLab_FreeHardware(void); int VLab_AllocateYUV(void); void VLab_FreeYUV(void); void VLab_ChangeInput(ULONG input); void VLab_ChangeVideo(ULONG videoStd); void VLab_ChangeHue(LONG hue); void VLab_ChangeFlags(ULONG flags); void VLab_ChangeFilters(ULONG filters); ULONG VLab_FrameWidth(ULONG flags); ULONG VLab_FrameHeight(ULONG video, ULONG flags); void VLab_LumaCorrection(LONG gamma, LONG brightness, LONG contrast); BOOL VLab_InitHardware(void); const char *VLab_GetErrorString(ULONG err); UBYTE VLab_WriteRegisters(void *VLabAddress, UBYTE *stream, ULONG length); UBYTE VLab_ReadStatus(void *VLabAddress); ULONG VLab_Grab(ULONG xpos, ULONG ypos, ULONG width, ULONG height, ULONG mode, BOOL color); UBYTE *VLab_GetYBuffer(void); /* ** VLab Classic specific functions. */ void VLab_SkipLuma(void *VLabAddress, ULONG frame, ULONG count); void VLab_SkipChroma(void *VLabAddress, ULONG frame, ULONG count); void VLab_GrabLuma(void *VLabAddress, UBYTE *output, ULONG output_spacing, ULONG width, ULONG height, ULONG line_skip, ULONG flags); void VLab_GrabChroma(void *VLabAddress, UBYTE *output, ULONG output_spacing, ULONG width, ULONG height, ULONG line_skip); /* ** VLab Y/C specific functions. */ void VLabYC_SkipLuma(void *VLabAddress, ULONG frame, ULONG count); void VLabYC_SkipChroma(void *VLabAddress, ULONG frame, ULONG count); void VLabYC_GrabLuma(void *VLabAddress, UBYTE *output, ULONG output_spacing, ULONG width, ULONG height, ULONG line_skip, ULONG flags); void VLabYC_GrabChroma(void *VLabAddress, UBYTE *output, ULONG output_spacing, ULONG width, ULONG height, ULONG line_skip); /* ** YUV to RGB conversion */ void VLab_YUV_to_RGB(UBYTE *buffer, ULONG numPix, ULONG mode); void VLab_411_to_RGB(UBYTE *yBuff, UBYTE *uvBuff, UBYTE *buffer, ULONG numPix); void VLab_211_to_RGB(UBYTE *yBuff, UBYTE *uvBuff, UBYTE *buffer, ULONG numPix); void VLab_111_to_RGB(UBYTE *yBuff, UBYTE *uvBuff, UBYTE *buffer, ULONG numPix); /* ** YUV to YUV422 conversion */ void VLab_YUV_to_Color(UBYTE *buffer, ULONG numPix, ULONG mode); void VLab_YUV_to_Grey(UBYTE *buffer, ULONG numPix); void VLab_211_to_422(UBYTE *yBuff, UBYTE *uvBuff, UBYTE *buffer, ULONG numPix); void VLab_111_to_422(UBYTE *yBuff, UBYTE *uvBuff, UBYTE *buffer, ULONG numPix); void VLab_Y_to_422(UBYTE *yBuff, UBYTE *buffer, ULONG numpix); /*------------------------------------------------------------------------------------------------*/ /* ** VLab_Grab() error codes. */ #define VLABERR_OK 0 /* No error */ #define VLABERR_BADPARAM 1 /* Bad parameter */ #define VLABERR_I2C 2 /* Communication error */ #define VLABERR_NOVIDEO 3 /* No video signal */ #define VLABERR_SCANNING 4 /* Timeout while scanning */ /* ** VLab_Grab() mode definitions. */ #define CAPTURE_HIRES 0x00 /* HiRes 4:1:1 */ #define CAPTURE_LORES 0x01 /* LoRes 2:1:1 */ #define CAPTURE_THUMBNAIL 0x02 /* Thumbnail 1:1:1 */ /*------------------------------------------------------------------------------------------------*/ #endif /* VLAB_CONTROL_H */