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cd32_fmv.cpp
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cd32_fmv.cpp
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/*
* UAE - The Un*x Amiga Emulator
*
* CD32 FMV cartridge
*
* Copyright 2008-2014 Toni Wilen
*
*/
#include "sysconfig.h"
#include "sysdeps.h"
#include "options.h"
#include "memory.h"
#include "rommgr.h"
#include "custom.h"
#include "newcpu.h"
#include "zfile.h"
#include "cd32_fmv.h"
#include "uae.h"
#include "debug.h"
#include "custom.h"
#include "audio.h"
#include "devices.h"
#include "threaddep/thread.h"
#include "cda_play.h"
#include "archivers/mp2/kjmp2.h"
#include "mpeg2.h"
#include "mpeg2convert.h"
#define FMV_DEBUG 0
static int fmv_audio_debug = 0;
static int fmv_video_debug = 0;
#define DUMP_VIDEO 0
/*
0x200000 - 0x23FFFF ROM (256k)
0x240000 io/status (word)
0x2500xx L64111 audio decoder (word registers)
0x260000 CL450 data port (word)
0x2700xx CL450 video decoder (word registers)
0x280000 - 0x2FFFFF RAM (512k)
*/
#define ROM_BASE 0x000000
#define IO_BASE 0x040000
#define L64111_BASE 0x050000
#define CL450_DATA 0x060000
#define CL450_BASE 0x070000
#define RAM_BASE 0x080000
#define BANK_MASK 0x0F0000
// IO_BASE bits (read)
#define IO_CL450_IRQ 0x8000 // CL450INT_
#define IO_L64111_IRQ 0x4000 // L64111INT_
#define IO_CL450_FIFO_STATUS 0x0800 // CL450CFLEVEL
#define IO_L64111_FALF 0x0400 // L64111FALF
#define IO_L64111_FALE 0x0400 // L64111FALE
#define IO_L64111_FEMP 0x0400 // L64111FEMP
// IO_BASE bits (write)
#define IO_CL450_VIDEO 0x4000
#define IO_UNK2 0x2000
#define IO_UNK3 0x1000
// above three are set/cleared by ROM code
#define IO_L64111_MUTE 0x0200
// L64111 registers
#define A_DATA 0
#define A_CONTROL1 1
#define A_CONTROL2 2
#define A_CONTROL3 3
#define A_INT1 4
#define A_INT2 5
#define A_TCR 6
#define A_TORH 7
#define A_TORL 8
#define A_PARAM1 9
#define A_PARAM2 10
#define A_PARAM3 11
#define A_PRESENT1 12
#define A_PRESENT2 13
#define A_PRESENT3 14
#define A_PRESENT4 15
#define A_PRESENT5 16
#define A_FIFO 17
#define A_CB_STATUS 18
#define A_CB_WRITE 19
#define A_CB_READ 20
// L641111 status register 1
#define ANC_DATA_VALID 0x80
#define ANC_DATA_FIFO_OVFL 0x40
#define ANC_DATA_FIO_HFF 0x10
#define ERR_BUF_OVFL 0x08
// L641111 status register 2
#define SYNTAX_ERR_DET 0x40
#define PTS_AVAILABLE 0x20
#define SYNC_AUD 0x10
#define SYNC_SYS 0x08
#define FRAME_DETECT_IN 0x04
#define CRC_ERR 0x02
#define NEWLAST_FRAME 0x01
#define NEW_FRAME_S 0x01
#define LAST_FRAME_S 0x80
// status register 2 mask bits
#define NEW_FRAME 0x02
#define LAST_FRAME 0x01
// CL450 direct access registers
#define CMEM_control 0x80
#define CMEM_data 0x02
#define CMEM_dmactrl 0x84
#define CMEM_status 0x82
#define CPU_control 0x20
#define CPU_iaddr 0x3e
#define CPU_imem 0x42
#define CPU_int 0x54
#define CPU_intenb 0x26
#define CPU_pc 0x22
#define CPU_taddr 0x38
#define CPU_tmem 0x46
#define DRAM_refcnt 0xac
#define HOST_control 0x90
#define HOST_intvecr 0x9c
#define HOST_intvecw 0x98
#define HOST_newcmd 0x56
#define HOST_raddr 0x88
#define HOST_rdata 0x8c
#define HOST_scr0 0x92
#define HOST_scr1 0x94
#define HOST_scr2 0x96
#define VID_control 0xec
#define VID_regdata 0xee
#define VID_chrom 0x0a
#define VID_y 0x00
// CL450 indirect access registers
#define VID_sela 0x0
#define VID_selactive 0x8
#define VID_selaux 0xc
#define VID_selb 0x1
#define VID_selbor 0x9
#define VID_selGB 0xb
#define VID_selmode 0x7
#define VID_selR 0xA
// CL450 commands
#define CL_SetBlank 0x030f
#define CL_SetBorder 0x0407
#define CL_SetColorMode 0x0111
#define CL_SetInterruptMask 0x0104
#define CL_SetThresHold 0x0103
#define CL_SetVideoFormat 0x0105
#define CL_SetWindow 0x0406
#define CL_DisplayStill 0x000c
#define CL_Pause 0x000e
#define CL_Play 0x000d
#define CL_Scan 0x000a
#define CL_SingleStep 0x000b
#define CL_SlowMotion 0x0109
#define CL_AccessSCR 0x8312
#define CL_FlushBitStream 0x8102
#define CL_InquireBufferFullness 0x8001
#define CL_NewPacket 0x0408
#define CL_Reset 0x8000
// CL450 interrupts
#define CL_INT_RDY (1 << 10)
#define CL_INT_END_D (1 << 5)
#define CL_INT_ERR (1 << 0)
#define CL_INT_PIC_D (1 << 6)
#define CL_INT_SEQ_D (1 << 9)
#define CL_INT_SCN (1 << 11)
#define CL_INT_UND (1 << 8)
#define CL_INT_END_V (1 << 4)
#define CL_INT_GOP (1 << 2)
#define CL_INT_PIC_V (1 << 1)
#define CL_INT_SEQ_V (1 << 3)
// CL450 DRAM resident variables (WORD address)
#define CL_DRAM_SEQ_SEM 0x10
#define CL_DRAM_SEQ_CONTROL 0x11
#define CL_DRAM_H_SIZE 0x12
#define CL_DRAM_V_SIZE 0x13
#define CL_DRAM_PICTURE_RATE 0x14
#define CL_DRAM_FLAGS 0x15
#define CL_DRAM_PIC_SEM 0x16
#define CL_DRAM_TIME_CODE_0 0x17
#define CL_DRAM_TIME_CODE_1 0x18
#define CL_DRAM_TEMPORAL_REF 0x19
#define CL_DRAM_VER 0xa0 // 0x0200
#define CL_DRAM_PID 0xa1 // 0x0002
#define CL_DRAM_CPU_PC 0xa2
static uae_u8 *audioram;
static const int fmv_rom_size = 262144;
static const int fmv_ram_size = 524288;
static const uaecptr fmv_start = 0x00200000;
static const int fmv_board_size = 1048576;
#define CL_HMEM_INT_STATUS 0x0a
#define CL450_MPEG_BUFFER 0x10000
#define CL450_MPEG_BUFFER_SIZE 65536
#define CL450_MPEG_DECODE_BUFFER (CL450_MPEG_BUFFER + CL450_MPEG_BUFFER_SIZE)
#define CL450_MPEG_DECODE_BUFFER_SIZE (fmv_ram_size - CL450_MPEG_DECODE_BUFFER)
#define CL450_VIDEO_BUFFERS 8
#define CL450_VIDEO_BUFFER_SIZE (352 * 288 * 4)
static uae_u16 cl450_regs[256];
static float cl450_scr;
#define CL450_IMEM_WORDS (2 * 512)
#define CL450_TMEM_WORDS 128
#define CL450_HMEM_WORDS 16
static uae_u16 cl450_imem[CL450_IMEM_WORDS];
static uae_u16 cl450_tmem[CL450_TMEM_WORDS];
static uae_u16 cl450_hmem[CL450_HMEM_WORDS];
#define CL450_VID_REGS 16
static uae_u16 cl450_vid[CL450_VID_REGS];
static int cl450_play;
static int cl450_blank;
static uae_u32 cl450_border_color;
static uae_u16 cl450_interruptmask;
static uae_u16 cl450_pending_interrupts;
static uae_u16 cl450_threshold;
static int cl450_buffer_offset;
static int cl450_buffer_empty_cnt;
static int libmpeg_offset;
static uae_sem_t play_sem;
static volatile bool fmv_bufon[2];
static float fmv_syncadjust;
static struct cd_audio_state cas;
struct cl450_videoram
{
int width;
int height;
int depth;
uae_u8 data[CL450_VIDEO_BUFFER_SIZE];
};
static struct cl450_videoram *videoram;
static bool cl450_newpacket_mode;
// Real CL450 has command buffer but we don't need to care,
// non-NewPacket commands can be emulated immediately.
#define CL450_NEWPACKET_BUFFER_SIZE 32
struct cl450_newpacket
{
uae_u16 length;
uae_u64 pts;
bool pts_valid;
};
static struct cl450_newpacket cl450_newpacket_buffer[CL450_NEWPACKET_BUFFER_SIZE];
static int cl450_newpacket_offset_write;
static int cl450_newpacket_offset_read;
static int cl450_frame_rate, cl450_frame_pixbytes;
static int cl450_frame_width, cl450_frame_height;
static int cl450_video_hsync_wait;
static int cl450_videoram_read;
static int cl450_videoram_write;
static int cl450_videoram_cnt;
static int cl450_frame_cnt;
static uae_u16 l64111_regs[32];
static uae_u16 l64111intmask[2], l64111intstatus[2];
#define L64111_CHANNEL_BUFFERS 128
static uae_u16 mpeg_io_reg;
static mpeg2dec_t *mpeg_decoder;
static const mpeg2_info_t *mpeg_info;
#if FMV_DEBUG
static int isdebug(uaecptr addr)
{
#if FMV_DEBUG > 2
if (M68K_GETPC >= 0x200100)
return 1;
return 0;
#endif
#if FMV_DEBUG == 2
if (M68K_GETPC >= 0x200100 && (addr & fmv_mask) >= VRAM_BASE)
return 1;
return 0;
#endif
return 0;
}
#endif
static void do_irq(void)
{
safe_interrupt_set(IRQ_SOURCE_CD32CDTV, 1, false);
}
static bool l64111_checkint(bool enabled)
{
bool irq = false;
if (l64111intstatus[0] & l64111intmask[0])
irq = true;
if (((l64111intstatus[1] << 1) | (l64111intstatus[1] >> 7)) & l64111intmask[1])
irq = true;
if (irq && enabled)
do_irq();
return irq;
}
static bool cl450_checkint(bool enabled)
{
bool irq = false;
if (!(cl450_regs[CPU_control] & 1))
return false;
if (!(cl450_regs[HOST_control] & 0x80))
irq = true;
if (irq && enabled)
do_irq();
return irq;
}
DECLARE_MEMORY_FUNCTIONS(fmv);
static addrbank fmv_bank = {
fmv_lget, fmv_wget, fmv_bget,
fmv_lput, fmv_wput, fmv_bput,
default_xlate, default_check, NULL, NULL, _T("CD32 FMV IO"),
fmv_lget, fmv_wget,
ABFLAG_IO, S_READ, S_WRITE
};
DECLARE_MEMORY_FUNCTIONS(fmv_rom);
static addrbank fmv_rom_bank = {
fmv_rom_lget, fmv_rom_wget, fmv_rom_bget,
fmv_rom_lput, fmv_rom_wput, fmv_rom_bput,
fmv_rom_xlate, fmv_rom_check, NULL, _T("*"), _T("CD32 FMV ROM"),
fmv_rom_lget, fmv_rom_wget,
ABFLAG_ROM, S_READ, S_WRITE
};
DECLARE_MEMORY_FUNCTIONS(fmv_ram);
static addrbank fmv_ram_bank = {
fmv_ram_lget, fmv_ram_wget, fmv_ram_bget,
fmv_ram_lput, fmv_ram_wput, fmv_ram_bput,
fmv_ram_xlate, fmv_ram_check, NULL, _T("*"), _T("CD32 FMV RAM"),
fmv_ram_lget, fmv_ram_wget,
ABFLAG_RAM, S_READ, S_WRITE
};
MEMORY_FUNCTIONS(fmv_rom);
MEMORY_FUNCTIONS(fmv_ram);
static void rethink_cd32fmv(void)
{
if (!fmv_ram_bank.baseaddr)
return;
cl450_checkint(true);
l64111_checkint(true);
}
#define L64111_FIFO_LOOKUP 96
#define L64111_FIFO_BYTES 128
static uae_u8 l64111_fifo[L64111_FIFO_BYTES];
static int l64111_fifo_cnt;
static int audio_frame_cnt, audio_frame_size;
static int audio_frame_detect, audio_head_detect;
static int l64111_cb_mask;
#define L64111_CHANNEL_BUFFER_SIZE 2048
static kjmp2_context_t mp2;
#define PCM_SECTORS 4
static cda_audio *cda;
static int audio_data_remaining;
static int audio_skip_size;
struct zfile *fdump;
struct fmv_pcmaudio
{
bool ready;
signed short pcm[KJMP2_SAMPLES_PER_FRAME * 2];
};
static struct fmv_pcmaudio *pcmaudio;
static void l64111_set_status(int num, uae_u16 mask)
{
num--;
l64111intstatus[num] |= mask;
l64111_checkint(true);
}
static void l64111_setvolume(void)
{
int volume = 32768;
if (l64111_regs[A_CONTROL2] & (1 << 5) || (mpeg_io_reg & IO_L64111_MUTE))
volume = 0;
if (!pcmaudio)
return;
write_log(_T("L64111 mute %d\n"), volume ? 0 : 1);
if (cda) {
audio_cda_volume(&cas, volume, volume);
}
}
static int l64111_get_frame(uae_u8 *data, int remaining)
{
int size, offset;
uae_u8 *memdata;
if (!audio_frame_size || !audio_data_remaining || !remaining)
return 0;
size = audio_frame_size - audio_frame_cnt > remaining ? remaining : audio_frame_size - audio_frame_cnt;
if (audio_data_remaining >= 0 && size > audio_data_remaining)
size = audio_data_remaining;
offset = l64111_regs[A_CB_WRITE] & l64111_cb_mask;
memdata = audioram + offset * L64111_CHANNEL_BUFFER_SIZE;
memcpy(memdata + audio_frame_cnt, data, size);
audio_frame_cnt += size;
if (audio_data_remaining >= 0)
audio_data_remaining -= size;
if (audio_frame_cnt == audio_frame_size) {
int bytes;
if (pcmaudio[offset].ready) {
write_log(_T("L64111 buffer overflow!\n"));
}
#if 0
if (!fdump)
fdump = zfile_fopen(_T("c:\\temp\\1.mp2"), _T("wb"));
zfile_fwrite(memdata, 1, audio_frame_size, fdump);
#endif
bytes = kjmp2_decode_frame(&mp2, memdata, pcmaudio[offset].pcm);
if (bytes < 4 || bytes > KJMP2_MAX_FRAME_SIZE) {
write_log(_T("mp2 decoding error\n"));
memset(pcmaudio[offset].pcm, 0, KJMP2_SAMPLES_PER_FRAME * 4);
}
pcmaudio[offset].ready = true;
audio_frame_size = 0;
audio_frame_cnt = 0;
l64111_set_status(2, NEW_FRAME_S);
//write_log(_T("Audio frame %d (%d %d)\n"), offset, l64111_regs[A_CB_STATUS], bytes);
offset++;
l64111_regs[A_CB_WRITE] = offset & l64111_cb_mask;
l64111_regs[A_CB_STATUS]++;
}
return size;
}
static const int mpa_bitrates[] = {
-1, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448, -1,
-1, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384, -1,
-1, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, -1,
-1, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256, -1,
-1, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, -1
};
static const int mpa_frequencies[] = {
44100, 48000, 32000, 0,
22050, 24000, 16000, 0,
11025, 12000, 8000, 0
};
static const int mpa_samplesperframe[] = {
384, 384, 384,
1152, 1152, 1152,
1152, 576, 576
};
static bool parse_mp2_frame(uae_u8 *header)
{
int ver, layer, bitrate, freq, padding, bitindex, iscrc;
int samplerate, bitrateidx, channelmode;
int isstereo;
audio_frame_cnt = 0;
audio_frame_size = 0;
ver = (header[1] >> 3) & 3;
if (ver != 3) // not MPEG-1
return false;
ver = 0;
layer = 4 - ((header[1] >> 1) & 3);
if (layer != 2) // not layer-2
return false;
iscrc = ((header[1] >> 0) & 1) ? 0 : 2;
bitrateidx = (header[2] >> 4) & 15;
if (bitrateidx == 0 || bitrateidx == 15)
return false; // invalid value
freq = mpa_frequencies[(header[2] >> 2) & 3];
if (!freq)
return false; // invalid value
channelmode = (header[3] >> 6) & 3;
isstereo = channelmode != 3;
if (ver == 0) {
bitindex = layer - 1;
} else {
if (layer == 1)
bitindex = 3;
else
bitindex = 4;
}
bitrate = mpa_bitrates[bitindex * 16 + bitrateidx] * 1000;
if (bitrate <= 0) // invalid value
return false;
padding = (header[2] >> 1) & 1;
samplerate = mpa_samplesperframe[(layer - 1) * 3 + ver];
audio_frame_size = ((samplerate / 8 * bitrate) / freq) + padding;
audio_frame_cnt = 0;
l64111_cb_mask = layer == 2 ? 63 : 127;
audio_frame_detect++;
l64111_regs[A_PARAM1] = ((header[1] << 4) | (header[2] >> 4)) & 0xff;
l64111_regs[A_PARAM2] = ((header[2] << 4) | (header[3] >> 4)) & 0xff;
l64111_regs[A_PARAM3] = ((header[3] << 4)) & 0xff;
l64111_set_status(2, FRAME_DETECT_IN | (audio_frame_detect == 3 ? SYNC_AUD : 0));
return true;
}
static void l64111_init(void)
{
audio_head_detect = 0;
audio_frame_detect = 0;
audio_data_remaining = 0;
audio_skip_size = 0;
audio_frame_cnt = 0;
audio_frame_size = 0;
l64111_fifo_cnt = 0;
}
static void l64111_reset(void)
{
memset(l64111_regs, 0, sizeof l64111_regs);
l64111intmask[0] = l64111intmask[1] = 0;
l64111intstatus[0] = l64111intstatus[1] = 0;
l64111_regs[A_CONTROL3] = 1 << 7; // AUDIO STREAM_ID_IGNORE=1
l64111_init();
l64111_setvolume();
if (pcmaudio) {
memset(pcmaudio, 0, sizeof(struct fmv_pcmaudio) * L64111_CHANNEL_BUFFERS);
write_log(_T("L64111 reset\n"));
}
}
static uae_u8 *parse_audio_header(uae_u8 *p)
{
bool ptsdts;
int cnt;
uae_u16 psize;
uae_u64 pts = 0;
p += 4;
psize = (p[0] << 8) | p[1];
//write_log(_T("audio stream header size %d\n"), psize);
p += 2;
if (audio_head_detect < 3) {
audio_head_detect++;
if (audio_head_detect == 3)
l64111_set_status(2, SYNC_SYS);
}
cnt = 16;
while (p[0] == 0xff) {
cnt--;
if (cnt < 0)
return p;
p++;
psize--;
}
if (p[0] == 0x0f) {
p++;
psize--;
} else {
if ((p[0] & 0xc0) == 0x40) {
// STD
p += 2;
psize -= 2;
}
ptsdts = false;
if ((p[0] & 0xf0) == 0x20 || (p[0] & 0xf0) == 0x30) {
if ((p[0] & 0xf0) == 0x30)
ptsdts = true;
// PTS
pts = (((uae_u64)(p[0] >> 1) & 7) << 30);
pts |= ((p[1] >> 0) << 22);
pts |= ((p[2] >> 1) << 15);
pts |= ((p[3] >> 0) << 7);
pts |= ((p[4] >> 1) << 0);
p += 5;
psize -= 5;
if (audio_head_detect >= 3) {
l64111_regs[A_PRESENT1] = (uae_u16)(pts >> 0);
l64111_regs[A_PRESENT2] = (uae_u16)(pts >> 8);
l64111_regs[A_PRESENT3] = (uae_u16)(pts >> 16);
l64111_regs[A_PRESENT4] = (uae_u16)(pts >> 24);
l64111_regs[A_PRESENT5] = (uae_u16)(pts >> 32);
//write_log(_T("audio PTS %09llx SCR %09llx\n"), pts, (uae_u64)cl450_scr);
l64111_set_status(2, PTS_AVAILABLE);
}
}
if (ptsdts && (p[0] & 0xf0) == 0x10) {
// DTS
p += 5;
psize -= 5;
}
}
audio_data_remaining = psize;
return p;
}
static void l64111_parse(void)
{
bool audio_only = (l64111_regs[A_CONTROL2] & 0x08) != 0;
uae_u8 *p = l64111_fifo;
if (!(l64111_regs[A_CONTROL1] & 1)) { // START bit set?
l64111_fifo_cnt = 0;
return;
}
if (audio_only) {
audio_data_remaining = -1;
audio_skip_size = 0;
}
if (audio_skip_size) {
int size = audio_skip_size > L64111_FIFO_BYTES ? L64111_FIFO_BYTES : audio_skip_size;
p += size;
audio_skip_size -= size;
}
if (audio_frame_size && audio_data_remaining)
p += l64111_get_frame(p, L64111_FIFO_BYTES - addrdiff(p, l64111_fifo));
while (p - l64111_fifo < L64111_FIFO_LOOKUP || (addrdiff(p, l64111_fifo) & 1)) {
uae_u8 *op = p;
int size = 0;
if (!audio_only) {
// check system stream packets
uae_u8 marker = p[3];
if (p[0] == 0 && p[1] == 0 && p[2] == 1 && (marker & 0x80)) {
int size = (p[4] << 8) | p[5];
if (marker >= 0xc0 && marker <= 0xdf) {
// audio stream 0 to 31
bool ignore_stream_id = (l64111_regs[A_CONTROL3] & 0x80) != 0;
if (ignore_stream_id || (marker - 0xc0) == (l64111_regs[A_CONTROL3] & 31))
p = parse_audio_header(p);
else
p += 4;
} else if (marker == 0xba) {
//write_log(_T("L64111: Pack header\n"));
p += 12;
} else if (marker == 0xbb) {
write_log(_T("L64111: System header, size %d\n"), size);
p += 6;
audio_skip_size = size;
} else if (marker == 0xbe) {
//write_log(_T("L64111: Padding packet size %d\n"), size);
p += 6;
audio_skip_size = size;
} else {
write_log(_T("L64111: Packet %02X, size %d\n"), marker, size);
p += 6;
}
}
}
if (audio_skip_size) {
int size = audio_skip_size > L64111_FIFO_BYTES - addrdiff(p, l64111_fifo) ? L64111_FIFO_BYTES - addrdiff(p, l64111_fifo) : audio_skip_size;
p += size;
audio_skip_size -= size;
}
if (L64111_FIFO_BYTES - (p - l64111_fifo) > 0 && audio_data_remaining) {
if (audio_frame_size) {
p += l64111_get_frame(p, L64111_FIFO_BYTES - addrdiff(p, l64111_fifo));
} else if (p[0] == 0xff && (p[1] & (0x80 | 0x40 | 0x20)) == (0x80 | 0x40 | 0x20)) {
if (parse_mp2_frame(p))
p += l64111_get_frame(p, L64111_FIFO_BYTES - addrdiff(p, l64111_fifo));
}
}
if (p == op) {
p++;
if (audio_data_remaining > 0)
audio_data_remaining--;
}
}
l64111_fifo_cnt = L64111_FIFO_BYTES - addrdiff(p, l64111_fifo);
if (l64111_fifo_cnt < 0)
l64111_fifo_cnt = 0;
if (l64111_fifo_cnt > 0)
memmove(l64111_fifo, p, l64111_fifo_cnt);
}
static uae_u16 l64111_wget (uaecptr addr)
{
uae_u16 v;
addr >>= 1;
addr &= 31;
if (fmv_audio_debug) {
if (!(addr == A_INT1 || addr == A_INT2 || addr == A_CB_STATUS))
write_log(_T("L64111 read reg %d -> %04x\n"), addr, l64111_regs[addr]);
}
v = l64111_regs[addr];
if (addr == A_INT1) {
v = l64111intstatus[0];
l64111intstatus[0] = 0;
} else if (addr == A_INT2) {
v = l64111intstatus[1] & 0x7f;
l64111intstatus[1] = 0;
}
return v;
}
static void l64111_wput (uaecptr addr, uae_u16 v)
{
addr >>= 1;
addr &= 31;
if (fmv_audio_debug) {
if (addr != A_DATA)
write_log(_T("L64111 write reg %d = %04x\n"), addr, v);
}
switch (addr)
{
case A_CONTROL1:
if ((v & 1) != (l64111_regs[addr] & 1))
l64111_init();
if ((v & 2))
l64111_reset();
if (v & 4) {
l64111_regs[A_CB_WRITE] = 0;
l64111_regs[A_CB_READ] = 0;
l64111_regs[A_CB_STATUS] = 0;
memset(pcmaudio, 0, sizeof(struct fmv_pcmaudio) * L64111_CHANNEL_BUFFERS);
write_log(_T("L64111 buffer reset\n"));
}
break;
case A_CONTROL2:
l64111_setvolume();
break;
case A_DATA:
if (l64111_fifo_cnt < 0 || l64111_fifo_cnt > L64111_FIFO_BYTES) {
write_log(_T("L641111 fifo overflow!\n"));
l64111_fifo_cnt = 0;
return;
}
l64111_fifo[l64111_fifo_cnt++] = v >> 8;
l64111_fifo[l64111_fifo_cnt++] = (uae_u8)v;
if (l64111_fifo_cnt == L64111_FIFO_BYTES) {
l64111_parse();
}
break;
case A_INT1:
l64111intmask[0] = v;
return;
case A_INT2:
l64111intmask[1] = v;
return;
}
l64111_regs[addr] = v;
}
static uae_u8 l64111_bget(uaecptr addr)
{
return (uae_u8)l64111_wget(addr);
}
static void l64111_bput(uaecptr addr, uae_u8 v)
{
l64111_wput(addr, v);
}
static void cl450_set_status(uae_u16 mask)
{
cl450_pending_interrupts |= mask & cl450_interruptmask;
if (cl450_hmem[CL_HMEM_INT_STATUS] == 0) {
cl450_hmem[CL_HMEM_INT_STATUS] = cl450_pending_interrupts;
cl450_pending_interrupts = 0;
cl450_regs[HOST_control] &= ~0x80;
cl450_checkint(true);
}
}
static void cl450_write_dram(int addr, uae_u16 w)
{
if (!fmv_ram_bank.baseaddr)
return;
fmv_ram_bank.baseaddr[addr * 2 + 0] = w >> 8;
fmv_ram_bank.baseaddr[addr * 2 + 1] = (uae_u8)w;
}
#if DUMP_VIDEO
static struct zfile *videodump;
#endif
static void cl450_parse_frame(void)
{
for (;;) {
mpeg2_state_t mpeg_state = mpeg2_parse(mpeg_decoder);
switch (mpeg_state)
{
case STATE_BUFFER:
{
int bufsize = cl450_buffer_offset;
if (bufsize == 0)
return;
while (bufsize > 0 && cl450_newpacket_mode) {
struct cl450_newpacket *np = &cl450_newpacket_buffer[cl450_newpacket_offset_read];
if (cl450_newpacket_offset_read == cl450_newpacket_offset_write)
return;
int size = np->length > bufsize ? bufsize : np->length;
if (np->length == 0) {
write_log(_T("CL450 no matching newpacket!?\n"));
return;
}
np->length -= size;
bufsize -= size;
if (np->length > 0)
break;
//write_log(_T("CL450: NewPacket %d done\n"), cl450_newpacket_offset_read);
cl450_newpacket_offset_read++;
cl450_newpacket_offset_read &= CL450_NEWPACKET_BUFFER_SIZE - 1;
}
#if DUMP_VIDEO
if (!videodump)
videodump = zfile_fopen(_T("c:\\temp\\1.mpg"), _T("wb"));
zfile_fwrite(&ram[CL450_MPEG_BUFFER], 1, cl450_buffer_offset, videodump);
#endif
memcpy(&fmv_ram_bank.baseaddr[CL450_MPEG_DECODE_BUFFER] + libmpeg_offset, &fmv_ram_bank.baseaddr[CL450_MPEG_BUFFER], cl450_buffer_offset);
mpeg2_buffer(mpeg_decoder, &fmv_ram_bank.baseaddr[CL450_MPEG_DECODE_BUFFER] + libmpeg_offset, &fmv_ram_bank.baseaddr[CL450_MPEG_DECODE_BUFFER] + libmpeg_offset + cl450_buffer_offset);
libmpeg_offset += cl450_buffer_offset;
if (libmpeg_offset >= CL450_MPEG_DECODE_BUFFER_SIZE - CL450_MPEG_BUFFER_SIZE)
libmpeg_offset = 0;
cl450_buffer_offset = 0;
}
break;
case STATE_SEQUENCE:
cl450_frame_pixbytes = currprefs.color_mode != 5 ? 2 : 4;
mpeg2_convert(mpeg_decoder, cl450_frame_pixbytes == 2 ? mpeg2convert_rgb16 : mpeg2convert_rgb32, NULL);
cl450_set_status(CL_INT_SEQ_V);
cl450_frame_rate = mpeg_info->sequence->frame_period ? 27000000 / mpeg_info->sequence->frame_period : 0;
cl450_frame_width = mpeg_info->sequence->width;
cl450_frame_height = mpeg_info->sequence->height;
cl450_write_dram(CL_DRAM_PICTURE_RATE, cl450_frame_rate);
cl450_write_dram(CL_DRAM_H_SIZE, cl450_frame_width);
cl450_write_dram(CL_DRAM_V_SIZE, cl450_frame_height);
break;
case STATE_PICTURE:
break;
case STATE_GOP:
cl450_write_dram(CL_DRAM_TIME_CODE_0, (mpeg_info->gop->hours << 6) | (mpeg_info->gop->minutes));
cl450_write_dram(CL_DRAM_TIME_CODE_1, (mpeg_info->gop->seconds << 6) | (mpeg_info->gop->pictures));
break;
case STATE_SLICE:
case STATE_END:
if (mpeg_info->display_fbuf) {
memcpy(videoram[cl450_videoram_write].data, mpeg_info->display_fbuf->buf[0], cl450_frame_width * cl450_frame_height * cl450_frame_pixbytes);
videoram[cl450_videoram_write].width = cl450_frame_width;
videoram[cl450_videoram_write].height = cl450_frame_height;
videoram[cl450_videoram_write].depth = cl450_frame_pixbytes;
cl450_videoram_write++;
cl450_videoram_write &= CL450_VIDEO_BUFFERS - 1;
cl450_videoram_cnt++;
//write_log(_T("%d\n"), cl450_videoram_cnt);
}
return;
default:
break;
}
}
}
static void cl450_reset(void)
{
cl450_play = 0;
cl450_pending_interrupts = 0;
cl450_interruptmask = 0;
cl450_blank = 0;
cl450_border_color = 0;
cl450_threshold = 4096;
cl450_buffer_offset = 0;
cl450_buffer_empty_cnt = 0;
libmpeg_offset = 0;
cl450_newpacket_mode = false;
cl450_newpacket_offset_write = 0;
cl450_newpacket_offset_read = 0;
cl450_videoram_write = 0;
cl450_videoram_read = 0;
cl450_videoram_cnt = 0;
memset(cl450_regs, 0, sizeof cl450_regs);
if (mpeg_decoder)
mpeg2_reset(mpeg_decoder, 1);
if (fmv_ram_bank.baseaddr) {
memset(fmv_ram_bank.baseaddr, 0, 0x100);
write_log(_T("CL450 reset\n"));
}
cl450_write_dram(CL_DRAM_VER, 0x0200);
cl450_write_dram(CL_DRAM_PID, 0x0002);
}
static void cl450_init(void)
{
write_log(_T("CL450 CPU enabled\n"));
cl450_hmem[15] = 0;
cl450_regs[HOST_newcmd] = 0;
cl450_regs[CMEM_control] = 2;
cl450_regs[HOST_control] = 0x0080 | 0x0001;
cl450_regs[VID_sela] = 0x8000 | 0x2000 | 0x0800 | 0x00c0 | 0x0006;
cl450_regs[VID_selb] = 0x4000 | 0x0900 | 0x0060 | 0x0007;
cl450_regs[HOST_scr2] = 0x1000 | 0x0d00 | 0x00e0;
cl450_regs[HOST_scr1] = 0;
cl450_regs[HOST_scr0] = 0;
cl450_scr = 0;
cl450_write_dram(CL_DRAM_VER, 0x0200);
cl450_write_dram(CL_DRAM_PID, 0x0002);
memset(fmv_ram_bank.baseaddr + 0x10, 0, 0x100 - 0x10);
}
static void cl450_newpacket(void)
{
struct cl450_newpacket *np = &cl450_newpacket_buffer[cl450_newpacket_offset_write];
cl450_newpacket_mode = true;
np->length = cl450_hmem[1];
np->pts = 0;
np->pts_valid = false;
if (cl450_hmem[2] & 0x8000) {
uae_u64 v;
v = ((uae_u64)cl450_regs[HOST_scr0] & 7) << 30;
v |= (cl450_regs[HOST_scr1] & 0x7fff) << 15;
v |= cl450_regs[HOST_scr2] & 0x7fff;
np->pts = v;
np->pts_valid = true;
}
if (fmv_video_debug & 1)
write_log(_T("CL450 NewPacket %d: size=%d pts=%09llx v=%d\n"), cl450_newpacket_offset_write, np->length, np->pts, np->pts_valid);
cl450_newpacket_offset_write++;
cl450_newpacket_offset_write &= CL450_NEWPACKET_BUFFER_SIZE - 1;
}
static void cl450_from_scr(void)
{
uae_u64 v = (uae_u64)cl450_scr;
cl450_regs[HOST_scr0] &= ~7;
cl450_regs[HOST_scr0] |= (v >> 30) & 7;
cl450_regs[HOST_scr1] = (v >> 15) & 0x7fff;
cl450_regs[HOST_scr2] = v & 0x7fff;
}
static void cl450_to_scr(void)
{
uae_u64 v;
v = ((uae_u64)cl450_regs[HOST_scr0] & 7) << 30;
v |= (cl450_regs[HOST_scr1] & 0x7fff) << 15;
v |= cl450_regs[HOST_scr2] & 0x7fff;
cl450_scr = (float)v;
}
static void cl450_reset_cmd(void)
{
cl450_blank = 1;
cl450_play = 0;
cl450_newpacket_offset_read = 0;
cl450_newpacket_offset_write = 0;
cl450_newpacket_mode = false;
cl450_interruptmask = 0;
cl450_buffer_offset = 0;
cl450_buffer_empty_cnt = 0;
}
static void cl450_newcmd(void)
{
// write_log(_T("* CL450 Command %04x\n"), cl450_hmem[0]);
// for (int i = 1; i <= 4; i++)
// write_log(_T("%02d: %04x\n"), i, cl450_hmem[i]);
switch (cl450_hmem[0])
{
case CL_Play:
cl450_play = 1;
write_log(_T("CL450 PLAY\n"));
break;
case CL_Pause:
if (cl450_play > 0) {
// pause clears SCR
cl450_scr = 0;
cl450_to_scr();
}
cl450_play = -cl450_play;
write_log(_T("CL450 PAUSE\n"));
break;
case CL_NewPacket:
cl450_newpacket();
break;