X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fobjectp.cpp;h=38631648d250d048c38384bc175e46b39c184d8a;hb=742efd9b7deca399ca92f1c548e97836d626c86a;hp=ee2418c976fec9c50f158b12a282e677ca35e39b;hpb=86bd0f2592c3cd674239532247276bd2d579a857;p=virtualjaguar diff --git a/src/objectp.cpp b/src/objectp.cpp index ee2418c..3863164 100644 --- a/src/objectp.cpp +++ b/src/objectp.cpp @@ -1,819 +1,1670 @@ +// +// Object Processor +// +// Original source by David Raingeard (Cal2) +// GCC/SDL port by Niels Wagenaar (Linux/WIN32) and Caz (BeOS) +// Extensive cleanups/fixes/rewrites by James L. Hammons +// (C) 2010 Underground Software +// +// JLH = James L. Hammons +// +// Who When What +// --- ---------- ------------------------------------------------------------- +// JLH 01/16/2010 Created this log ;-) +// + +#include "objectp.h" -#include #include #include +#include "gpu.h" #include "jaguar.h" - +#include "log.h" +#include "m68k.h" +#include "memory.h" +#include "tom.h" //#define OP_DEBUG //#define OP_DEBUG_BMP -static int cnt = 0; -extern uint32 jaguar_mainRom_crc32; -static uint8 * op_blend_y; -static uint8 * op_blend_cc; +#define BLEND_Y(dst, src) op_blend_y[(((uint16)dst<<8)) | ((uint16)(src))] +#define BLEND_CR(dst, src) op_blend_cr[(((uint16)dst)<<8) | ((uint16)(src))] -#define BLEND_Y(dst,src) op_blend_y[(((uint16)dst)<<8) | ((uint16)(src))] -#define BLEND_CC(dst,src) op_blend_cc[(((uint16)dst)<<8) | ((uint16)(src))] +#define OBJECT_TYPE_BITMAP 0 // 000 +#define OBJECT_TYPE_SCALE 1 // 001 +#define OBJECT_TYPE_GPU 2 // 010 +#define OBJECT_TYPE_BRANCH 3 // 011 +#define OBJECT_TYPE_STOP 4 // 100 +#define CONDITION_EQUAL 0 +#define CONDITION_LESS_THAN 1 +#define CONDITION_GREATER_THAN 2 +#define CONDITION_OP_FLAG_SET 3 +#define CONDITION_SECOND_HALF_LINE 4 -static uint8 objectp_ram[0x40]; -uint8 objectp_running; +#define OPFLAG_RELEASE 8 // Bus release bit +#define OPFLAG_TRANS 4 // Transparency bit +#define OPFLAG_RMW 2 // Read-Modify-Write bit +#define OPFLAG_REFLECT 1 // Horizontal mirror bit -uint8 objectp_stop_reading_list; +// Private function prototypes -#define OBJECT_TYPE_BITMAP 0 -#define OBJECT_TYPE_SCALE 1 -#define OBJECT_TYPE_GPU 2 -#define OBJECT_TYPE_BRANCH 3 -#define OBJECT_TYPE_STOP 4 +void OPProcessFixedBitmap(uint64 p0, uint64 p1, bool render); +void OPProcessScaledBitmap(uint64 p0, uint64 p1, uint64 p2, bool render); +void DumpScaledObject(uint64 p0, uint64 p1, uint64 p2); +void DumpFixedObject(uint64 p0, uint64 p1); +uint64 OPLoadPhrase(uint32 offset); -#define CONDITION_EQUAL 0 -#define CONDITION_LESS_THAN 1 -#define CONDITION_GREATER_THAN 2 -#define CONDITION_OP_FLAG_SET 3 -#define CONDITION_SECOND_HALF_LINE 4 +// Local global variables -#define FLAGS_RELEASE 8 -#define FLAGS_TRANSPARENT 4 -#define FLAGS_READMODIFY 2 -#define FLAGS_HFLIP 1 +// Blend tables (64K each) +static uint8 op_blend_y[0x10000]; +static uint8 op_blend_cr[0x10000]; +// There may be a problem with this "RAM" overlapping (and thus being independent of) +// some of the regular TOM RAM... +//#warning objectp_ram is separated from TOM RAM--need to fix that! +//static uint8 objectp_ram[0x40]; // This is based at $F00000 +uint8 objectp_running = 0; +//bool objectp_stop_reading_list; +static uint8 op_bitmap_bit_depth[8] = { 1, 2, 4, 8, 16, 24, 32, 0 }; +//static uint32 op_bitmap_bit_size[8] = +// { (uint32)(0.125*65536), (uint32)(0.25*65536), (uint32)(0.5*65536), (uint32)(1*65536), +// (uint32)(2*65536), (uint32)(1*65536), (uint32)(1*65536), (uint32)(1*65536) }; +static uint32 op_pointer; -static char * condition_to_str[8] = {"==","<",">","(opflag set)","(second half line)","?","?","?"}; +int32 phraseWidthToPixels[8] = { 64, 32, 16, 8, 4, 2, 0, 0 }; -static uint8 op_bitmap_bit_depth[8]={1, 2, 4, 8, 16, 24, 32, 0 }; -static uint32 op_bitmap_bit_size[8]={0.125*65536, 0.25*65536, 0.5*65536, 1*65536, 2*65536, 1*65536, 1*65536, 1*65536}; -static uint32 op_pointer; -static int cnt_bitmap = 0; -////////////////////////////////////////////////////////////////////////////// -// -////////////////////////////////////////////////////////////////////////////// // +// Object Processor initialization // -// -////////////////////////////////////////////////////////////////////////////// -void op_process_bitmap(int16 *backbuffer, int scanline, uint64 p0, uint64 p1, int render) +void OPInit(void) { - uint8 bitdepth=(p1>>12)&0x07; - - int16 ypos=(((p0>>3)&0x3ff)/2); - int32 xpos=(((int32)((p1<<20)&0xffffffff))>>20)-tom_getHBlankWidthInPixels(); - int32 iwidth=((p1>>28)&0x3ff)*4; - uint32 dwidth=((p1>>18)&0x3ff)*4; - int16 height=((p0>>14)&0x3ff)-1; - uint32 link=((p0>>24)&0x7ffff)<<3; - uint32 ptr=(((p0>>43)&0x1fffff)<<3); - uint32 firstPix=(p1>>49)&0x3f; - uint8 flags=(p1>>45)&0x0f; - uint8 idx=(p1>>38)&0x7f; - uint32 pitch=(p1>>15)&0x07; - int16 scanline_width=tom_getVideoModeWidth(); - uint8 *tom_ram_8=tom_get_ram_pointer(); - uint8 *current_line_buffer=&tom_ram_8[0x1800]; - uint8 *paletteRam=&tom_ram_8[0x400]; - uint8 doom_hack=0; - - op_pointer=link; - - if ((!render)||(op_pointer==0)||(height<0)||(dwidth<0)||(ptr==0)||(pitch==0)) - { - return; - } - if (iwidth==0) - { - dwidth=iwidth=height; - } - if (jaguar_mainRom_crc32==0x5e705756) // doom - { - if ((iwidth==160)&&(height==179)&&(xpos==-9)&&(ypos==24)) - { - doom_hack=1; - xpos=0; - } - } - // il y a un offset vertical de 20 pour un des bitmaps - // dans dinon olympics pour une raison encore inconnue - if (jaguar_mainRom_crc32==0x3c7bfda8) - { - if ((iwidth==220)&&(height==184)&&(ypos==0)) - { - ypos=20; - } - } - else - if (jaguar_mainRom_crc32==0x2f032271) - { - ypos+=8; - } - if (op_bitmap_bit_depth[bitdepth]==24) - { - iwidth*=2; - dwidth*=2; - } - if (op_bitmap_bit_depth[bitdepth]==8) - { - iwidth*=2; - dwidth*=2; - } - if (op_bitmap_bit_depth[bitdepth]==4) - { - iwidth*=2; - dwidth*=2; - } - if (op_bitmap_bit_depth[bitdepth]==2) - { - iwidth*=2; - dwidth*=2; - } - if (op_bitmap_bit_depth[bitdepth]==1) + // Here we calculate the saturating blend of a signed 4-bit value and an + // existing Cyan/Red value as well as a signed 8-bit value and an existing intensity... + // Note: CRY is 4 bits Cyan, 4 bits Red, 16 bits intensitY + for(int i=0; i<256*256; i++) { - iwidth*=2; - dwidth*=2; - } - // Power Drive Rally (fixed size bitmaps have a 240 lines vertical offset) - // but could well be a modulo 240 - if (jaguar_mainRom_crc32==0x0ab88d90) - ypos%=240; + int y = (i >> 8) & 0xFF; + int dy = (int8)i; // Sign extend the Y index + int c1 = (i >> 8) & 0x0F; + int dc1 = (int8)(i << 4) >> 4; // Sign extend the R index + int c2 = (i >> 12) & 0x0F; + int dc2 = (int8)(i & 0xF0) >> 4; // Sign extend the C index + y += dy; -#ifdef OP_DEBUG_BMP - fprintf(log_get(),"bitmap %ix%i %ibpp at %i,%i firstpix=%i ptr=0x%.8x pitch %i hflipped=%s dwidth=%i (linked to 0x%.8x) Transluency=%s\n",iwidth,height,op_bitmap_bit_depth[bitdepth],xpos,ypos,firstPix,ptr,pitch,flags&FLAGS_HFLIP?"yes":"no",dwidth,op_pointer,(flags&FLAGS_READMODIFY)?"yes":"no"); -#endif + if (y < 0) + y = 0; + else if (y > 0xFF) + y = 0xFF; - if ((scanline(ypos+height))) - { - return; - } - // seek to the good bitmap scanline - // not sure for palettized modes - if (op_bitmap_bit_depth[bitdepth] > 8) - { - ptr += ((dwidth * op_bitmap_bit_size[bitdepth]) >> 16) * (scanline - ypos); - } - else - ptr += dwidth * (scanline - ypos); + op_blend_y[i] = y; - if (xpos < 0) - { - iwidth += xpos; - ptr += (pitch * op_bitmap_bit_size[bitdepth] * (-xpos)) >> 16; - xpos = 0; - } + c1 += dc1; - if (iwidth <= 0) - { -#ifdef OP_DEBUG - fprintf(log_get(),"not rendering because iwidth<0\n"); -#endif - return; - } - - if (flags&FLAGS_HFLIP) - { - if ((xpos<0)||((xpos-iwidth)>=scanline_width)) - return; + if (c1 < 0) + c1 = 0; + else if (c1 > 0x0F) + c1 = 0x0F; - if ((xpos-iwidth)<0) - iwidth=xpos; - } - else - { - if (((xpos+iwidth)<0)||(xpos>=scanline_width)) - return; + c2 += dc2; - if ((xpos+iwidth)>scanline_width) - iwidth=scanline_width-xpos; + if (c2 < 0) + c2 = 0; + else if (c2 > 0x0F) + c2 = 0x0F; + + op_blend_cr[i] = (c2 << 4) | c1; } + OPReset(); +} + +// +// Object Processor reset +// +void OPReset(void) +{ +// memset(objectp_ram, 0x00, 0x40); + objectp_running = 0; +} - current_line_buffer+=(xpos*2); // 2 in 16 bpp modes (need to take the mode into account) +void OPDone(void) +{ + const char * opType[8] = + { "(BITMAP)", "(SCALED BITMAP)", "(GPU INT)", "(BRANCH)", "(STOP)", "???", "???", "???" }; + const char * ccType[8] = + { "\"==\"", "\"<\"", "\">\"", "(opflag set)", "(second half line)", "?", "?", "?" }; - // doom switches the resolution from 320 to 160 to double the display width - // this is not yet supported - if (doom_hack) - { - while (iwidth) - { - uint8 d0=jaguar_byte_read(ptr+0); - uint8 d1=jaguar_byte_read(ptr+1); - *current_line_buffer++=d0; - *current_line_buffer++=d1; - *current_line_buffer++=d0; - *current_line_buffer++=d1; - ptr+=2; - iwidth--; - } - return; - } - if (op_bitmap_bit_depth[bitdepth]==1) - { - if (pitch==1) - { - #include "include/fbmpop1.h" - } - else - { - #include "include/fbmpop1p.h" - } - } - else - if (op_bitmap_bit_depth[bitdepth]==2) - { - if (pitch==1) - { - #include "include/fbmpop2.h" - } - else - { - #include "include/fbmpop2p.h" - } - } - else - if (op_bitmap_bit_depth[bitdepth]==4) - { - if (pitch==1) - { - #include "include/fbmpop4.h" - } - else - { - #include "include/fbmpop4p.h" - } - } - else - if (op_bitmap_bit_depth[bitdepth]==8) - { - if (pitch==1) - { - #include "include/fbmpop8.h" - } - else - { - #include "include/fbmpop8p.h" - } - } - else - if (op_bitmap_bit_depth[bitdepth]==16) - { - if (pitch==1) - { - #include "include/fbmpop16.h" - } - else - { - #include "include/fbmpop16p.h" - } - } - else - if (op_bitmap_bit_depth[bitdepth]==24) + uint32 olp = OPGetListPointer(); + WriteLog("OP: OLP = %08X\n", olp); + WriteLog("OP: Phrase dump\n ----------\n"); + for(uint32 i=0; i<0x100; i+=8) { - if (pitch==1) - { - #include "include/fbmpop24.h" - } - else + uint32 hi = JaguarReadLong(olp + i, OP), lo = JaguarReadLong(olp + i + 4, OP); + WriteLog("\t%08X: %08X %08X %s", olp + i, hi, lo, opType[lo & 0x07]); + if ((lo & 0x07) == 3) { - #include "include/fbmpop24p.h" + uint16 ypos = (lo >> 3) & 0x7FF; + uint8 cc = (lo >> 14) & 0x03; + uint32 link = ((hi << 11) | (lo >> 21)) & 0x3FFFF8; + WriteLog(" YPOS=%u, CC=%s, link=%08X", ypos, ccType[cc], link); } + WriteLog("\n"); + if ((lo & 0x07) == 0) + DumpFixedObject(OPLoadPhrase(olp+i), OPLoadPhrase(olp+i+8)); + if ((lo & 0x07) == 1) + DumpScaledObject(OPLoadPhrase(olp+i), OPLoadPhrase(olp+i+8), OPLoadPhrase(olp+i+16)); } + WriteLog("\n"); + +// memory_free(op_blend_y); +// memory_free(op_blend_cr); } -////////////////////////////////////////////////////////////////////////////// -// -////////////////////////////////////////////////////////////////////////////// + // +// Object Processor memory access +// Memory range: F00010 - F00027 // +// F00010-F00017 R xxxxxxxx xxxxxxxx OB - current object code from the graphics processor +// F00020-F00023 W xxxxxxxx xxxxxxxx OLP - start of the object list +// F00026 W -------- -------x OBF - object processor flag // -////////////////////////////////////////////////////////////////////////////// -void op_process_scaled_bitmap(int16 *backbuffer, int scanline, uint64 p0, uint64 p1, uint64 p2, int render) -{ - int32 xpos=(((int32)((p1<<20)&0xffffffff))>>20)-tom_getHBlankWidthInPixels(); - int16 ypos=(((p0&0x3ff8)>>3)/2); - uint16 iwidth=((p1>>28)&0x3ff)*4; - uint16 dwidth=((p1>>18)&0x3ff)*4; - uint16 height=(p0>>14)&0x3ff; - uint32 link=((p0>>24)&0x7ffff)<<3; - uint32 ptr=((p0>>43)&0x1fffff)<<3; - uint32 firstPix=(p1>>49)&0x3f; - uint8 flags=(p1>>45)&0x0f; - uint8 idx=(p1>>38)&0x7f; - uint8 pitch=(p1>>15)&0x07; - uint8 bitdepth=(p1>>12)&0x07; - int16 scanline_width=tom_getVideoModeWidth(); - uint8 *tom_ram_8=tom_get_ram_pointer(); - uint8 *current_line_buffer=&tom_ram_8[0x1800]; - float vscale; - float hscale; - - uint32 vscale_fixed3p5=((p2>>8)&0xff); - uint32 hscale_fixed3p5=(p2&0xff); - vscale=((float)vscale_fixed3p5)/32; - hscale=((float)hscale_fixed3p5)/32; - - op_pointer=link; - - if (jaguar_mainRom_crc32==0x5a5b9c68) // atari karts - { - if (vscale == 0.0f) - vscale = 1.0f; - - if (ypos == 0) - ypos = scanline; - } -#ifdef OP_DEBUG_BMP - if (xpos == -3) - fprintf(log_get(),"[scanline %i] %ix%i scaled to %ix%i scale (%f, %f)%i bpp pitch %i at (%i,%i) @ 0x%.8x Transluency=%s\n", - scanline, - iwidth,height, - (int)(iwidth*hscale), - (int)(height*vscale), - hscale, vscale, - op_bitmap_bit_depth[bitdepth],pitch,xpos,ypos,ptr,(flags&FLAGS_READMODIFY)?"yes":"no"); -#endif - if (jaguar_mainRom_crc32==0x2f032271) - { - ypos+=8; - } - if ((render==0)||(op_pointer==0)||(height<0)||(dwidth<0)||(ptr==0)||(pitch==0)) - { - return; - } +#if 0 +uint8 OPReadByte(uint32 offset, uint32 who/*=UNKNOWN*/) +{ + offset &= 0x3F; + return objectp_ram[offset]; +} - if (op_bitmap_bit_depth[bitdepth]==8) - { - iwidth*=2; - dwidth*=2; - } - if (op_bitmap_bit_depth[bitdepth]==4) - { - iwidth*=2; - dwidth*=2; - } - if (op_bitmap_bit_depth[bitdepth]==2) - { - iwidth*=2; - dwidth*=2; - } - if (op_bitmap_bit_depth[bitdepth]==1) - { - iwidth*=2; - dwidth*=2; - } +uint16 OPReadWord(uint32 offset, uint32 who/*=UNKNOWN*/) +{ + offset &= 0x3F; + return GET16(objectp_ram, offset); +} - uint16 scaled_width=iwidth*hscale; - uint16 scaled_height=height*vscale; +void OPWriteByte(uint32 offset, uint8 data, uint32 who/*=UNKNOWN*/) +{ + offset &= 0x3F; + objectp_ram[offset] = data; +} - if (op_bitmap_bit_depth[bitdepth]==4) // why ? - scaled_width*=2; +void OPWriteWord(uint32 offset, uint16 data, uint32 who/*=UNKNOWN*/) +{ + offset &= 0x3F; + SET16(objectp_ram, offset, data); - if (op_bitmap_bit_depth[bitdepth]==2) // why ? - scaled_width*=4; +/*if (offset == 0x20) +WriteLog("OP: Setting lo list pointer: %04X\n", data); +if (offset == 0x22) +WriteLog("OP: Setting hi list pointer: %04X\n", data);//*/ +} +#endif - if (op_bitmap_bit_depth[bitdepth]==1) // why ? - scaled_width*=8; +uint32 OPGetListPointer(void) +{ + // Note: This register is LO / HI WORD, hence the funky look of this... + return GET16(tomRam8, 0x20) | (GET16(tomRam8, 0x22) << 16); +} - // seek to the good bitmap scanline - // not sure for palettized modes - if (op_bitmap_bit_depth[bitdepth]>8) - ptr+=((dwidth*op_bitmap_bit_size[bitdepth])>>16)*((uint32)((scanline-ypos)/vscale)); - else - ptr+=dwidth*((uint32)((scanline-ypos)/vscale)); +// This is WRONG, since the OBF is only 16 bits wide!!! [FIXED] - // visible ? - if ((scanline(ypos+scaled_height))||((xpos+scaled_width)<0)||(xpos>=scanline_width)) - return; +uint32 OPGetStatusRegister(void) +{ + return GET16(tomRam8, 0x26); +} - - if (xpos<0) - { - scaled_width+=xpos; - ptr+=(pitch*op_bitmap_bit_size[bitdepth]*((uint32)((-xpos)/hscale)))>>16; - xpos=0; - } +// This is WRONG, since the OBF is only 16 bits wide!!! [FIXED] - if (iwidth<=0) - return; +void OPSetStatusRegister(uint32 data) +{ + tomRam8[0x26] = (data & 0x0000FF00) >> 8; + tomRam8[0x27] |= (data & 0xFE); +} - if (flags&FLAGS_HFLIP) - { - if ((xpos<0)||((xpos-scaled_width)>=scanline_width)) - return; +void OPSetCurrentObject(uint64 object) +{ +//Not sure this is right... Wouldn't it just be stored 64 bit BE? + // Stored as least significant 32 bits first, ms32 last in big endian +/* objectp_ram[0x13] = object & 0xFF; object >>= 8; + objectp_ram[0x12] = object & 0xFF; object >>= 8; + objectp_ram[0x11] = object & 0xFF; object >>= 8; + objectp_ram[0x10] = object & 0xFF; object >>= 8; - if ((xpos-scaled_width)<0) - scaled_width=xpos; - } - else - { - if (((xpos+scaled_width)<0)||(xpos>=scanline_width)) - return; + objectp_ram[0x17] = object & 0xFF; object >>= 8; + objectp_ram[0x16] = object & 0xFF; object >>= 8; + objectp_ram[0x15] = object & 0xFF; object >>= 8; + objectp_ram[0x14] = object & 0xFF;*/ +// Let's try regular good old big endian... + tomRam8[0x17] = object & 0xFF; object >>= 8; + tomRam8[0x16] = object & 0xFF; object >>= 8; + tomRam8[0x15] = object & 0xFF; object >>= 8; + tomRam8[0x14] = object & 0xFF; object >>= 8; - if ((xpos+scaled_width)>scanline_width) - scaled_width=scanline_width-xpos; - } - - current_line_buffer+=(xpos*2); + tomRam8[0x13] = object & 0xFF; object >>= 8; + tomRam8[0x12] = object & 0xFF; object >>= 8; + tomRam8[0x11] = object & 0xFF; object >>= 8; + tomRam8[0x10] = object & 0xFF; +} - int32 hscale_fixed=(int32)(65536.0f/hscale); - int32 cnt=0; +uint64 OPLoadPhrase(uint32 offset) +{ + offset &= ~0x07; // 8 byte alignment + return ((uint64)JaguarReadLong(offset, OP) << 32) | (uint64)JaguarReadLong(offset+4, OP); +} - if (op_bitmap_bit_depth[bitdepth]==1) - { - if (pitch==1) - { - #include "include/zbmpop1.h" - } - else - { - #include "include/zbmpop1p.h" - } - } - else - if (op_bitmap_bit_depth[bitdepth]==2) - { - if (pitch==1) - { - #include "include/zbmpop2.h" - } - else - { - #include "include/zbmpop2p.h" - } - } - else - if (op_bitmap_bit_depth[bitdepth]==4) - { - if (pitch==1) - { - #include "include/zbmpop4.h" - } - else - { - #include "include/zbmpop4p.h" - } - } - else - if (op_bitmap_bit_depth[bitdepth]==8) - { - if (pitch==1) - { - #include "include/zbmpop8.h" - } - else - { - #include "include/zbmpop8p.h" - } - } - else - if (op_bitmap_bit_depth[bitdepth]==16) - { - if (pitch==1) - { - #include "include/zbmpop16.h" - } - else - { - #include "include/zbmpop16p.h" - } - } - else - fprintf(log_get(),"(unimplemented) %i bpp scaled bitmap\n",op_bitmap_bit_depth[bitdepth]); +void OPStorePhrase(uint32 offset, uint64 p) +{ + offset &= ~0x07; // 8 byte alignment + JaguarWriteLong(offset, p >> 32, OP); + JaguarWriteLong(offset + 4, p & 0xFFFFFFFF, OP); } -////////////////////////////////////////////////////////////////////////////// -// -////////////////////////////////////////////////////////////////////////////// -// + // +// Debugging routines // -////////////////////////////////////////////////////////////////////////////// -uint64 op_load_phrase(uint32 offset) +void DumpScaledObject(uint64 p0, uint64 p1, uint64 p2) { - offset &= (~0x07); // 8 byte alignment - - uint64 data = jaguar_byte_read(offset++); - data <<= 8; - data |= jaguar_byte_read(offset++); - data <<= 8; - data |= jaguar_byte_read(offset++); - data <<= 8; - data |= jaguar_byte_read(offset++); - data <<= 8; - data |= jaguar_byte_read(offset++); - data <<= 8; - data |= jaguar_byte_read(offset++); - data <<= 8; - data |= jaguar_byte_read(offset++); - data <<= 8; - data |= jaguar_byte_read(offset++); - - return data; + WriteLog(" (SCALED BITMAP)"); + WriteLog(" %08X --> phrase %08X %08X\n", op_pointer, (uint32)(p1>>32), (uint32)(p1&0xFFFFFFFF)); + WriteLog(" %08X --> phrase %08X %08X ", op_pointer+8, (uint32)(p2>>32), (uint32)(p2&0xFFFFFFFF)); + uint8 bitdepth = (p1 >> 12) & 0x07; +//WAS: int16 ypos = ((p0 >> 3) & 0x3FF); // ??? What if not interlaced (/2)? + int16 ypos = ((p0 >> 3) & 0x7FF); // ??? What if not interlaced (/2)? + int32 xpos = p1 & 0xFFF; + xpos = (xpos & 0x800 ? xpos | 0xFFFFF000 : xpos); + uint32 iwidth = ((p1 >> 28) & 0x3FF); + uint32 dwidth = ((p1 >> 18) & 0x3FF); // Unsigned! + uint16 height = ((p0 >> 14) & 0x3FF); + uint32 link = ((p0 >> 24) & 0x7FFFF) << 3; + uint32 ptr = ((p0 >> 43) & 0x1FFFFF) << 3; + uint32 firstPix = (p1 >> 49) & 0x3F; + uint8 flags = (p1 >> 45) & 0x0F; + uint8 idx = (p1 >> 38) & 0x7F; + uint32 pitch = (p1 >> 15) & 0x07; + WriteLog("\n [%u (%u) x %u @ (%i, %u) (%u bpp), l: %08X, p: %08X fp: %02X, fl:%s%s%s%s, idx:%02X, pt:%02X]\n", + iwidth, dwidth, height, xpos, ypos, op_bitmap_bit_depth[bitdepth], link, ptr, firstPix, (flags&OPFLAG_REFLECT ? "REFLECT " : ""), (flags&OPFLAG_RMW ? "RMW " : ""), (flags&OPFLAG_TRANS ? "TRANS " : ""), (flags&OPFLAG_RELEASE ? "RELEASE" : ""), idx, pitch); + uint32 hscale = p2 & 0xFF; + uint32 vscale = (p2 >> 8) & 0xFF; + uint32 remainder = (p2 >> 16) & 0xFF; + WriteLog(" [hsc: %02X, vsc: %02X, rem: %02X]\n", hscale, vscale, remainder); } -////////////////////////////////////////////////////////////////////////////// -// -////////////////////////////////////////////////////////////////////////////// -// + +void DumpFixedObject(uint64 p0, uint64 p1) +{ + WriteLog(" (BITMAP)"); + WriteLog(" %08X --> phrase %08X %08X\n", op_pointer, (uint32)(p1>>32), (uint32)(p1&0xFFFFFFFF)); + uint8 bitdepth = (p1 >> 12) & 0x07; +//WAS: int16 ypos = ((p0 >> 3) & 0x3FF); // ??? What if not interlaced (/2)? + int16 ypos = ((p0 >> 3) & 0x7FF); // ??? What if not interlaced (/2)? + int32 xpos = p1 & 0xFFF; + xpos = (xpos & 0x800 ? xpos | 0xFFFFF000 : xpos); + uint32 iwidth = ((p1 >> 28) & 0x3FF); + uint32 dwidth = ((p1 >> 18) & 0x3FF); // Unsigned! + uint16 height = ((p0 >> 14) & 0x3FF); + uint32 link = ((p0 >> 24) & 0x7FFFF) << 3; + uint32 ptr = ((p0 >> 43) & 0x1FFFFF) << 3; + uint32 firstPix = (p1 >> 49) & 0x3F; + uint8 flags = (p1 >> 45) & 0x0F; + uint8 idx = (p1 >> 38) & 0x7F; + uint32 pitch = (p1 >> 15) & 0x07; + WriteLog(" [%u (%u) x %u @ (%i, %u) (%u bpp), l: %08X, p: %08X fp: %02X, fl:%s%s%s%s, idx:%02X, pt:%02X]\n", + iwidth, dwidth, height, xpos, ypos, op_bitmap_bit_depth[bitdepth], link, ptr, firstPix, (flags&OPFLAG_REFLECT ? "REFLECT " : ""), (flags&OPFLAG_RMW ? "RMW " : ""), (flags&OPFLAG_TRANS ? "TRANS " : ""), (flags&OPFLAG_RELEASE ? "RELEASE" : ""), idx, pitch); +} + // +// Object Processor main routine // -////////////////////////////////////////////////////////////////////////////// -void op_process_list(int16 * backbuffer, int scanline, int render) +//Need to fix this so that when an GPU object IRQ happens, we can pick up OP processing +//where we left off. !!! FIX !!! +#warning "Need to fix this so that when an GPU object IRQ happens, we can pick up OP processing where we left off. !!! FIX !!!" +void OPProcessList(int scanline, bool render) { - uint64 p0; +extern int op_start_log; +// char * condition_to_str[8] = +// { "==", "<", ">", "(opflag set)", "(second half line)", "?", "?", "?" }; - cnt_bitmap = 0; + op_pointer = OPGetListPointer(); - if (scanline < tom_get_vdb()) - return; +// objectp_stop_reading_list = false; - if (scanline >= 525)//tom_getVideoModeHeight()+tom_get_vdb()) - return; +//WriteLog("OP: Processing line #%u (OLP=%08X)...\n", scanline, op_pointer); +//op_done(); - op_pointer = op_get_list_pointer(); +// *** BEGIN OP PROCESSOR TESTING ONLY *** +extern bool interactiveMode; +extern bool iToggle; +extern int objectPtr; +bool inhibit; +int bitmapCounter = 0; +// *** END OP PROCESSOR TESTING ONLY *** - objectp_stop_reading_list = 0; - cnt = 0; + uint32 opCyclesToRun = 10000; // This is a pulled-out-of-the-air value (will need to be fixed, obviously!) -// if (op_pointer) fprintf(log_get()," new op list at 0x%.8x scanline %i\n",op_pointer,scanline); +// if (op_pointer) WriteLog(" new op list at 0x%.8x scanline %i\n",op_pointer,scanline); while (op_pointer) { - if (objectp_stop_reading_list) - return; - - p0 = op_load_phrase(op_pointer); +// *** BEGIN OP PROCESSOR TESTING ONLY *** +if (interactiveMode && bitmapCounter == objectPtr) + inhibit = iToggle; +else + inhibit = false; +// *** END OP PROCESSOR TESTING ONLY *** +// if (objectp_stop_reading_list) +// return; + + uint64 p0 = OPLoadPhrase(op_pointer); +//WriteLog("\t%08X type %i\n", op_pointer, (uint8)p0 & 0x07); op_pointer += 8; - +if (scanline == TOMGetVDB() && op_start_log) +//if (scanline == 215 && op_start_log) +//if (scanline == 28 && op_start_log) +{ +WriteLog("%08X --> phrase %08X %08X", op_pointer - 8, (int)(p0>>32), (int)(p0&0xFFFFFFFF)); +if ((p0 & 0x07) == OBJECT_TYPE_BITMAP) +{ +WriteLog(" (BITMAP) "); +uint64 p1 = OPLoadPhrase(op_pointer); +WriteLog("\n%08X --> phrase %08X %08X ", op_pointer, (int)(p1>>32), (int)(p1&0xFFFFFFFF)); + uint8 bitdepth = (p1 >> 12) & 0x07; +//WAS: int16 ypos = ((p0 >> 3) & 0x3FF); // ??? What if not interlaced (/2)? + int16 ypos = ((p0 >> 3) & 0x7FF); // ??? What if not interlaced (/2)? +int32 xpos = p1 & 0xFFF; +xpos = (xpos & 0x800 ? xpos | 0xFFFFF000 : xpos); + uint32 iwidth = ((p1 >> 28) & 0x3FF); + uint32 dwidth = ((p1 >> 18) & 0x3FF); // Unsigned! + uint16 height = ((p0 >> 14) & 0x3FF); + uint32 link = ((p0 >> 24) & 0x7FFFF) << 3; + uint32 ptr = ((p0 >> 43) & 0x1FFFFF) << 3; + uint32 firstPix = (p1 >> 49) & 0x3F; + uint8 flags = (p1 >> 45) & 0x0F; + uint8 idx = (p1 >> 38) & 0x7F; + uint32 pitch = (p1 >> 15) & 0x07; +WriteLog("\n [%u (%u) x %u @ (%i, %u) (%u bpp), l: %08X, p: %08X fp: %02X, fl:%s%s%s%s, idx:%02X, pt:%02X]\n", + iwidth, dwidth, height, xpos, ypos, op_bitmap_bit_depth[bitdepth], link, ptr, firstPix, (flags&OPFLAG_REFLECT ? "REFLECT " : ""), (flags&OPFLAG_RMW ? "RMW " : ""), (flags&OPFLAG_TRANS ? "TRANS " : ""), (flags&OPFLAG_RELEASE ? "RELEASE" : ""), idx, pitch); +} +if ((p0 & 0x07) == OBJECT_TYPE_SCALE) +{ +WriteLog(" (SCALED BITMAP)"); +uint64 p1 = OPLoadPhrase(op_pointer), p2 = OPLoadPhrase(op_pointer+8); +WriteLog("\n%08X --> phrase %08X %08X ", op_pointer, (int)(p1>>32), (int)(p1&0xFFFFFFFF)); +WriteLog("\n%08X --> phrase %08X %08X ", op_pointer+8, (int)(p2>>32), (int)(p2&0xFFFFFFFF)); + uint8 bitdepth = (p1 >> 12) & 0x07; +//WAS: int16 ypos = ((p0 >> 3) & 0x3FF); // ??? What if not interlaced (/2)? + int16 ypos = ((p0 >> 3) & 0x7FF); // ??? What if not interlaced (/2)? +int32 xpos = p1 & 0xFFF; +xpos = (xpos & 0x800 ? xpos | 0xFFFFF000 : xpos); + uint32 iwidth = ((p1 >> 28) & 0x3FF); + uint32 dwidth = ((p1 >> 18) & 0x3FF); // Unsigned! + uint16 height = ((p0 >> 14) & 0x3FF); + uint32 link = ((p0 >> 24) & 0x7FFFF) << 3; + uint32 ptr = ((p0 >> 43) & 0x1FFFFF) << 3; + uint32 firstPix = (p1 >> 49) & 0x3F; + uint8 flags = (p1 >> 45) & 0x0F; + uint8 idx = (p1 >> 38) & 0x7F; + uint32 pitch = (p1 >> 15) & 0x07; +WriteLog("\n [%u (%u) x %u @ (%i, %u) (%u bpp), l: %08X, p: %08X fp: %02X, fl:%s%s%s%s, idx:%02X, pt:%02X]\n", + iwidth, dwidth, height, xpos, ypos, op_bitmap_bit_depth[bitdepth], link, ptr, firstPix, (flags&OPFLAG_REFLECT ? "REFLECT " : ""), (flags&OPFLAG_RMW ? "RMW " : ""), (flags&OPFLAG_TRANS ? "TRANS " : ""), (flags&OPFLAG_RELEASE ? "RELEASE" : ""), idx, pitch); + uint32 hscale = p2 & 0xFF; + uint32 vscale = (p2 >> 8) & 0xFF; + uint32 remainder = (p2 >> 16) & 0xFF; +WriteLog(" [hsc: %02X, vsc: %02X, rem: %02X]\n", hscale, vscale, remainder); +} +if ((p0 & 0x07) == OBJECT_TYPE_GPU) +WriteLog(" (GPU)\n"); +if ((p0 & 0x07) == OBJECT_TYPE_BRANCH) +{ +WriteLog(" (BRANCH)\n"); +uint8 * jaguarMainRam = GetRamPtr(); +WriteLog("[RAM] --> "); +for(int k=0; k<8; k++) + WriteLog("%02X ", jaguarMainRam[op_pointer-8 + k]); +WriteLog("\n"); +} +if ((p0 & 0x07) == OBJECT_TYPE_STOP) +WriteLog(" --> List end\n"); +}//*/ -// fprintf(log_get(),"0x%.8x type %i\n",op_pointer,((uint8)p0&0x07)); - switch ((uint8)p0&0x07) + switch ((uint8)p0 & 0x07) { case OBJECT_TYPE_BITMAP: { - uint64 p1 = op_load_phrase(op_pointer); - op_pointer += 8; - op_process_bitmap(backbuffer, scanline, p0, p1, render); +//WAS: uint16 ypos = (p0 >> 3) & 0x3FF; + uint16 ypos = (p0 >> 3) & 0x7FF; +// This is only theory implied by Rayman...! +// It seems that if the YPOS is zero, then bump the YPOS value so that it coincides with +// the VDB value. With interlacing, this would be slightly more tricky. +// There's probably another bit somewhere that enables this mode--but so far, doesn't seem +// to affect any other game in a negative way (that I've seen). +// Either that, or it's an undocumented bug... + +//No, the reason this was needed is that the OP code before was wrong. Any value +//less than VDB will get written to the top line of the display! +// if (ypos == 0) +// ypos = TOMReadWord(0xF00046, OP) / 2; // Get the VDB value + uint32 height = (p0 & 0xFFC000) >> 14; + uint32 oldOPP = op_pointer - 8; +// *** BEGIN OP PROCESSOR TESTING ONLY *** +if (inhibit && op_start_log) + WriteLog("!!! ^^^ This object is INHIBITED! ^^^ !!!\n"); +bitmapCounter++; +if (!inhibit) // For OP testing only! +// *** END OP PROCESSOR TESTING ONLY *** + if (scanline >= ypos && height > 0) + { + uint64 p1 = OPLoadPhrase(op_pointer); + op_pointer += 8; +//WriteLog("OP: Writing scanline %d with ypos == %d...\n", scanline, ypos); +//WriteLog("--> Writing %u BPP bitmap...\n", op_bitmap_bit_depth[(p1 >> 12) & 0x07]); +// OPProcessFixedBitmap(scanline, p0, p1, render); + OPProcessFixedBitmap(p0, p1, render); + + // OP write-backs + +//???Does this really happen??? Doesn't seem to work if you do this...! +//Probably not. Must be a bug in the documentation...! +// uint32 link = (p0 & 0x7FFFF000000) >> 21; +// SET16(tom_ram_8, 0x20, link & 0xFFFF); // OLP +// SET16(tom_ram_8, 0x22, link >> 16); +/* uint32 height = (p0 & 0xFFC000) >> 14; + if (height - 1 > 0) + height--;*/ + // NOTE: Would subtract 2 if in interlaced mode...! +// uint64 height = ((p0 & 0xFFC000) - 0x4000) & 0xFFC000; +// if (height) + height--; + + uint64 data = (p0 & 0xFFFFF80000000000LL) >> 40; + uint64 dwidth = (p1 & 0xFFC0000) >> 15; + data += dwidth; + + p0 &= ~0xFFFFF80000FFC000LL; // Mask out old data... + p0 |= (uint64)height << 14; + p0 |= data << 40; + OPStorePhrase(oldOPP, p0); + } +//WriteLog("\t\tOld OP: %08X -> ", op_pointer); +//Temp, for testing... +//No doubt, this type of check will break all kinds of stuff... !!! FIX !!! +//And it does! !!! FIX !!! +//Let's remove this "fix" since it screws up more than it fixes. +/* if (op_pointer > ((p0 & 0x000007FFFF000000LL) >> 21)) + return;*/ + + op_pointer = (p0 & 0x000007FFFF000000LL) >> 21; +//WriteLog("New OP: %08X\n", op_pointer); break; } case OBJECT_TYPE_SCALE: { - uint64 p1 = op_load_phrase(op_pointer); - op_pointer += 8; - uint64 p2 = op_load_phrase(op_pointer); - op_pointer += 8; - op_process_scaled_bitmap(backbuffer, scanline, p0, p1, p2, render); +//WAS: uint16 ypos = (p0 >> 3) & 0x3FF; + uint16 ypos = (p0 >> 3) & 0x7FF; + uint32 height = (p0 & 0xFFC000) >> 14; + uint32 oldOPP = op_pointer - 8; +// *** BEGIN OP PROCESSOR TESTING ONLY *** +if (inhibit && op_start_log) +{ + WriteLog("!!! ^^^ This object is INHIBITED! ^^^ !!! (scanline=%u, ypos=%u, height=%u)\n", scanline, ypos, height); + DumpScaledObject(p0, OPLoadPhrase(op_pointer), OPLoadPhrase(op_pointer+8)); +} +bitmapCounter++; +if (!inhibit) // For OP testing only! +// *** END OP PROCESSOR TESTING ONLY *** + if (scanline >= ypos && height > 0) + { + uint64 p1 = OPLoadPhrase(op_pointer); + op_pointer += 8; + uint64 p2 = OPLoadPhrase(op_pointer); + op_pointer += 8; +//WriteLog("OP: %08X (%d) %08X%08X %08X%08X %08X%08X\n", oldOPP, scanline, (uint32)(p0>>32), (uint32)(p0&0xFFFFFFFF), (uint32)(p1>>32), (uint32)(p1&0xFFFFFFFF), (uint32)(p2>>32), (uint32)(p2&0xFFFFFFFF)); + OPProcessScaledBitmap(p0, p1, p2, render); + + // OP write-backs + + uint8 remainder = p2 >> 16, vscale = p2 >> 8; +//Actually, we should skip this object if it has a vscale of zero. +//Or do we? Not sure... Atari Karts has a few lines that look like: +// (SCALED BITMAP) +//000E8268 --> phrase 00010000 7000B00D +// [7 (0) x 1 @ (13, 0) (8 bpp), l: 000E82A0, p: 000E0FC0 fp: 00, fl:RELEASE, idx:00, pt:01] +// [hsc: 9A, vsc: 00, rem: 00] +// Could it be the vscale is overridden if the DWIDTH is zero? Hmm... + + if (vscale == 0) + vscale = 0x20; // OP bug??? Nope, it isn't...! Or is it? + +//extern int start_logging; +//if (start_logging) +// WriteLog("--> Returned from scaled bitmap processing (rem=%02X, vscale=%02X)...\n", remainder, vscale);//*/ +//Locks up here: +//--> Returned from scaled bitmap processing (rem=20, vscale=80)... +//There are other problems here, it looks like... +//Another lock up: +//About to execute OP (508)... +/* +OP: Scaled bitmap 4x? 4bpp at 38,? hscale=7C fpix=0 data=00075E28 pitch 1 hflipped=no dwidth=? (linked to 00071118) Transluency=no +--> Returned from scaled bitmap processing (rem=50, vscale=7C)... +OP: Scaled bitmap 4x? 4bpp at 38,? hscale=7C fpix=0 data=00075E28 pitch 1 hflipped=no dwidth=? (linked to 00071118) Transluency=no +--> Returned from scaled bitmap processing (rem=30, vscale=7C)... +OP: Scaled bitmap 4x? 4bpp at 38,? hscale=7C fpix=0 data=00075E28 pitch 1 hflipped=no dwidth=? (linked to 00071118) Transluency=no +--> Returned from scaled bitmap processing (rem=10, vscale=7C)... +OP: Scaled bitmap 4x? 4bpp at 36,? hscale=7E fpix=0 data=000756A8 pitch 1 hflipped=no dwidth=? (linked to 00073058) Transluency=no +--> Returned from scaled bitmap processing (rem=00, vscale=7E)... +OP: Scaled bitmap 4x? 4bpp at 34,? hscale=80 fpix=0 data=000756C8 pitch 1 hflipped=no dwidth=? (linked to 00073078) Transluency=no +--> Returned from scaled bitmap processing (rem=00, vscale=80)... +OP: Scaled bitmap 4x? 4bpp at 36,? hscale=7E fpix=0 data=000756C8 pitch 1 hflipped=no dwidth=? (linked to 00073058) Transluency=no +--> Returned from scaled bitmap processing (rem=5E, vscale=7E)... +OP: Scaled bitmap 4x? 4bpp at 34,? hscale=80 fpix=0 data=000756E8 pitch 1 hflipped=no dwidth=? (linked to 00073078) Transluency=no +--> Returned from scaled bitmap processing (rem=60, vscale=80)... +OP: Scaled bitmap 4x? 4bpp at 36,? hscale=7E fpix=0 data=000756C8 pitch 1 hflipped=no dwidth=? (linked to 00073058) Transluency=no +--> Returned from scaled bitmap processing (rem=3E, vscale=7E)... +OP: Scaled bitmap 4x? 4bpp at 34,? hscale=80 fpix=0 data=000756E8 pitch 1 hflipped=no dwidth=? (linked to 00073078) Transluency=no +--> Returned from scaled bitmap processing (rem=40, vscale=80)... +OP: Scaled bitmap 4x? 4bpp at 36,? hscale=7E fpix=0 data=000756C8 pitch 1 hflipped=no dwidth=? (linked to 00073058) Transluency=no +--> Returned from scaled bitmap processing (rem=1E, vscale=7E)... +OP: Scaled bitmap 4x? 4bpp at 34,? hscale=80 fpix=0 data=000756E8 pitch 1 hflipped=no dwidth=? (linked to 00073078) Transluency=no +--> Returned from scaled bitmap processing (rem=20, vscale=80)... +*/ +//Here's another problem: +// [hsc: 20, vsc: 20, rem: 00] +// Since we're not checking for $E0 (but that's what we get from the above), we end +// up repeating this scanline unnecessarily... !!! FIX !!! [DONE, but... still not quite +// right. Either that, or the Accolade team that wrote Bubsy screwed up royal.] +//Also note: $E0 = 7.0 which IS a legal vscale value... + +// if (remainder & 0x80) // I.e., it's negative +// if ((remainder & 0x80) || remainder == 0) // I.e., it's <= 0 +// if ((remainder - 1) >= 0xE0) // I.e., it's <= 0 +// if ((remainder >= 0xE1) || remainder == 0)// I.e., it's <= 0 +// if ((remainder >= 0xE1 && remainder <= 0xFF) || remainder == 0)// I.e., it's <= 0 + if (remainder <= 0x20) // I.e., it's <= 0 + { + uint64 data = (p0 & 0xFFFFF80000000000LL) >> 40; + uint64 dwidth = (p1 & 0xFFC0000) >> 15; + +// while (remainder & 0x80) +// while ((remainder & 0x80) || remainder == 0) +// while ((remainder - 1) >= 0xE0) +// while ((remainder >= 0xE1) || remainder == 0) +// while ((remainder >= 0xE1 && remainder <= 0xFF) || remainder == 0) + while (remainder <= 0x20) + { + remainder += vscale; + + if (height) + height--; + + data += dwidth; + } + + p0 &= ~0xFFFFF80000FFC000LL; // Mask out old data... + p0 |= (uint64)height << 14; + p0 |= data << 40; + OPStorePhrase(oldOPP, p0); + } + + remainder -= 0x20; // 1.0f in [3.5] fixed point format + +//if (start_logging) +// WriteLog("--> Finished writebacks...\n");//*/ + +//WriteLog(" [%08X%08X -> ", (uint32)(p2>>32), (uint32)(p2&0xFFFFFFFF)); + p2 &= ~0x0000000000FF0000LL; + p2 |= (uint64)remainder << 16; +//WriteLog("%08X%08X]\n", (uint32)(p2>>32), (uint32)(p2&0xFFFFFFFF)); + OPStorePhrase(oldOPP+16, p2); +//remainder = (uint8)(p2 >> 16), vscale = (uint8)(p2 >> 8); +//WriteLog(" [after]: rem=%02X, vscale=%02X\n", remainder, vscale); + } + op_pointer = (p0 & 0x000007FFFF000000LL) >> 21; break; } case OBJECT_TYPE_GPU: { - uint64 data = p0 >> 3; - op_set_current_object(p0); - gpu_set_irq_line(3, 1); +//WriteLog("OP: Asserting GPU IRQ #3...\n"); +#warning "Need to fix OP GPU IRQ handling! !!! FIX !!!" + OPSetCurrentObject(p0); + GPUSetIRQLine(3, ASSERT_LINE); +//Also, OP processing is suspended from this point until OBF (F00026) is written to... +// !!! FIX !!! +//Do something like: +//OPSuspendedByGPU = true; +//Dunno if the OP keeps processing from where it was interrupted, or if it just continues +//on the next scanline... +// --> It continues from where it was interrupted! !!! FIX !!! break; } case OBJECT_TYPE_BRANCH: { - uint16 vcnt = (p0>>3) & 0x7FF; - uint8 cc = (p0>>14) & 0x03; - uint32 link = ((p0>>24) & 0x1FFFFF) << 3; - -// if ((vcnt!=507)&&(vcnt!=25)) -// fprintf(log_get(),"\t%i%s%i link=0x%.8x\n",scanline,condition_to_str[cc],vcnt>>1,link); + uint16 ypos = (p0 >> 3) & 0x7FF; + uint8 cc = (p0 >> 14) & 0x03; + uint32 link = (p0 >> 21) & 0x3FFFF8; + +// if ((ypos!=507)&&(ypos!=25)) +// WriteLog("\t%i%s%i link=0x%.8x\n",scanline,condition_to_str[cc],ypos>>1,link); switch (cc) { case CONDITION_EQUAL: - if ((vcnt != 0x7FF) && (vcnt & 0x01)) - vcnt ^= 0x01; - if (((2*tom_get_scanline()) == vcnt) || (vcnt == 0x7FF)) - op_pointer=link; + if (TOMReadWord(0xF00006, OP) == ypos || ypos == 0x7FF) + op_pointer = link; break; case CONDITION_LESS_THAN: - if ((2*tom_get_scanline()) < vcnt) - op_pointer=link; + if (TOMReadWord(0xF00006, OP) < ypos) + op_pointer = link; break; case CONDITION_GREATER_THAN: - if ((2*tom_get_scanline()) > vcnt) - op_pointer=link; + if (TOMReadWord(0xF00006, OP) > ypos) + op_pointer = link; break; case CONDITION_OP_FLAG_SET: - if (op_get_status_register() & 0x01) - op_pointer=link; + if (OPGetStatusRegister() & 0x01) + op_pointer = link; break; case CONDITION_SECOND_HALF_LINE: - fprintf(log_get(), "op: unexpected CONDITION_SECOND_HALF_LINE in BRANCH object\nop: shuting down\n"); - fclose(log_get()); + // This basically means branch if bit 10 of HC is set +#warning "Unhandled condition code causes emulator to crash... !!! FIX !!!" + WriteLog("OP: Unexpected CONDITION_SECOND_HALF_LINE in BRANCH object\nOP: shuting down\n"); + LogDone(); exit(0); break; default: - fprintf(log_get(),"op: unimplemented branch condition %i\n", cc); + WriteLog("OP: Unimplemented branch condition %i\n", cc); } break; } case OBJECT_TYPE_STOP: { +//op_start_log = 0; // unsure - op_set_status_register(((p0>>3) & 0xFFFFFFFF)); - - if (p0 & 0x8) +//WriteLog("OP: --> STOP\n"); +// op_set_status_register(((p0>>3) & 0xFFFFFFFF)); +//This seems more likely... + OPSetCurrentObject(p0); + + if (p0 & 0x08) { - tom_set_pending_object_int(); - if ((tom_irq_enabled(2)) && (jaguar_interrupt_handler_is_valid(64))) - { -// s68000interrupt(7,64); -// s68000flushInterrupts(); + TOMSetPendingObjectInt(); + if (TOMIRQEnabled(IRQ_OPFLAG))// && jaguar_interrupt_handler_is_valid(64)) m68k_set_irq(7); // Cause an NMI to occur... - } } return; - break; +// break; } default: - { - fprintf(log_get(),"op: unknown object type %i\n", ((uint8)p0 & 0x07)); + WriteLog("op: unknown object type %i\n", ((uint8)p0 & 0x07)); return; } - } + + // Here is a little sanity check to keep the OP from locking up the machine + // when fed bad data. Better would be to count how many actual cycles it used + // and bail out/reenter to properly simulate an overloaded OP... !!! FIX !!! +#warning "Better would be to count how many actual cycles it used and bail out/reenter to properly simulate an overloaded OP... !!! FIX !!!" + opCyclesToRun--; + if (!opCyclesToRun) + return; } } -////////////////////////////////////////////////////////////////////////////// -// -////////////////////////////////////////////////////////////////////////////// -// + // +// Store fixed size bitmap in line buffer // -////////////////////////////////////////////////////////////////////////////// -void op_init(void) +void OPProcessFixedBitmap(uint64 p0, uint64 p1, bool render) { - memory_malloc_secure((void **)&op_blend_y, 0x10000, "Jaguar Object processor Y blend lookup table"); - memory_malloc_secure((void **)&op_blend_cc, 0x10000, "Jaguar Object processor C blend lookup table"); +// Need to make sure that when writing that it stays within the line buffer... +// LBUF ($F01800 - $F01D9E) 360 x 32-bit RAM + uint8 depth = (p1 >> 12) & 0x07; // Color depth of image + int32 xpos = ((int16)((p1 << 4) & 0xFFFF)) >> 4;// Image xpos in LBUF + uint32 iwidth = (p1 >> 28) & 0x3FF; // Image width in *phrases* + uint32 data = (p0 >> 40) & 0xFFFFF8; // Pixel data address +//#ifdef OP_DEBUG_BMP + uint32 firstPix = (p1 >> 49) & 0x3F; + // "The LSB is significant only for scaled objects..." -JTRM + // "In 1 BPP mode, all five bits are significant. In 2 BPP mode, the top four are significant..." + firstPix &= 0x3E; +//#endif +// We can ignore the RELEASE (high order) bit for now--probably forever...! +// uint8 flags = (p1 >> 45) & 0x0F; // REFLECT, RMW, TRANS, RELEASE +//Optimize: break these out to their own BOOL values + uint8 flags = (p1 >> 45) & 0x07; // REFLECT (0), RMW (1), TRANS (2) + bool flagREFLECT = (flags & OPFLAG_REFLECT ? true : false), + flagRMW = (flags & OPFLAG_RMW ? true : false), + flagTRANS = (flags & OPFLAG_TRANS ? true : false); +// "For images with 1 to 4 bits/pixel the top 7 to 4 bits of the index +// provide the most significant bits of the palette address." + uint8 index = (p1 >> 37) & 0xFE; // CLUT index offset (upper pix, 1-4 bpp) + uint32 pitch = (p1 >> 15) & 0x07; // Phrase pitch + pitch <<= 3; // Optimization: Multiply pitch by 8 - for(int i=0; i<256*256; i++) - { - int y = (i >> 8) & 0xFF; - int dy = (int8)(i & 0xFF); - y += dy; - if (y < 0) - y = 0; - else if (y > 0xFF) - y = 0xFF; - op_blend_y[i] = y; +// int16 scanlineWidth = tom_getVideoModeWidth(); + uint8 * tomRam8 = TOMGetRamPointer(); + uint8 * paletteRAM = &tomRam8[0x400]; + // This is OK as long as it's used correctly: For 16-bit RAM to RAM direct copies--NOT + // for use when using endian-corrected data (i.e., any of the *_word_read functions!) + uint16 * paletteRAM16 = (uint16 *)paletteRAM; + +// WriteLog("bitmap %ix? %ibpp at %i,? firstpix=? data=0x%.8x pitch %i hflipped=%s dwidth=? (linked to ?) RMW=%s Tranparent=%s\n", +// iwidth, op_bitmap_bit_depth[bitdepth], xpos, ptr, pitch, (flags&OPFLAG_REFLECT ? "yes" : "no"), (flags&OPFLAG_RMW ? "yes" : "no"), (flags&OPFLAG_TRANS ? "yes" : "no")); + +// Is it OK to have a 0 for the data width??? (i.e., undocumented?) +// Seems to be... Seems that dwidth *can* be zero (i.e., reuse same line) as well. +// Pitch == 0 is OK too... +// if (!render || op_pointer == 0 || ptr == 0 || pitch == 0) +//I'm not convinced that we need to concern ourselves with data & op_pointer here either! + if (!render || iwidth == 0) + return; + +//#define OP_DEBUG_BMP +//#ifdef OP_DEBUG_BMP +// WriteLog("bitmap %ix%i %ibpp at %i,%i firstpix=%i data=0x%.8x pitch %i hflipped=%s dwidth=%i (linked to 0x%.8x) Transluency=%s\n", +// iwidth, height, op_bitmap_bit_depth[bitdepth], xpos, ypos, firstPix, ptr, pitch, (flags&OPFLAG_REFLECT ? "yes" : "no"), dwidth, op_pointer, (flags&OPFLAG_RMW ? "yes" : "no")); +//#endif + +// int32 leftMargin = xpos, rightMargin = (xpos + (phraseWidthToPixels[depth] * iwidth)) - 1; + int32 startPos = xpos, endPos = xpos + + (!flagREFLECT ? (phraseWidthToPixels[depth] * iwidth) - 1 + : -((phraseWidthToPixels[depth] * iwidth) + 1)); + uint32 clippedWidth = 0, phraseClippedWidth = 0, dataClippedWidth = 0;//, phrasePixel = 0; + bool in24BPPMode = (((GET16(tomRam8, 0x0028) >> 1) & 0x03) == 1 ? true : false); // VMODE + // Not sure if this is Jaguar Two only location or what... + // From the docs, it is... If we want to limit here we should think of something else. +// int32 limit = GET16(tom_ram_8, 0x0008); // LIMIT + int32 limit = 720; + int32 lbufWidth = (!in24BPPMode ? limit - 1 : (limit / 2) - 1); // Zero based limit... + + // If the image is completely to the left or right of the line buffer, then bail. +//If in REFLECT mode, then these values are swapped! !!! FIX !!! [DONE] +//There are four possibilities: +// 1. image sits on left edge and no REFLECT; starts out of bounds but ends in bounds. +// 2. image sits on left edge and REFLECT; starts in bounds but ends out of bounds. +// 3. image sits on right edge and REFLECT; starts out of bounds but ends in bounds. +// 4. image sits on right edge and no REFLECT; starts in bounds but ends out of bounds. +//Numbers 2 & 4 can be caught by checking the LBUF clip while in the inner loop, +// numbers 1 & 3 are of concern. +// This *indirectly* handles only cases 2 & 4! And is WRONG is REFLECT is set...! +// if (rightMargin < 0 || leftMargin > lbufWidth) + +// It might be easier to swap these (if REFLECTed) and just use XPOS down below... +// That way, you could simply set XPOS to leftMargin if !REFLECT and to rightMargin otherwise. +// Still have to be careful with the DATA and IWIDTH values though... + +// if ((!flagREFLECT && (rightMargin < 0 || leftMargin > lbufWidth)) +// || (flagREFLECT && (leftMargin < 0 || rightMargin > lbufWidth))) +// return; + if ((!flagREFLECT && (endPos < 0 || startPos > lbufWidth)) + || (flagREFLECT && (startPos < 0 || endPos > lbufWidth))) + return; + + // Otherwise, find the clip limits and clip the phrase as well... + // NOTE: I'm fudging here by letting the actual blit overstep the bounds of the + // line buffer, but it shouldn't matter since there are two unused line + // buffers below and nothing above and I'll at most write 8 bytes outside + // the line buffer... I could use a fractional clip begin/end value, but + // this makes the blit a *lot* more hairy. I might fix this in the future + // if it becomes necessary. (JLH) + // Probably wouldn't be *that* hairy. Just use a delta that tells the inner loop + // which pixel in the phrase is being written, and quit when either end of phrases + // is reached or line buffer extents are surpassed. + +//This stuff is probably wrong as well... !!! FIX !!! +//The strange thing is that it seems to work, but that's no guarantee that it's bulletproof! +//Yup. Seems that JagMania doesn't work correctly with this... +//Dunno if this is the problem, but Atari Karts is showing *some* of the road now... +// if (!flagREFLECT) + +/* + if (leftMargin < 0) + clippedWidth = 0 - leftMargin, + phraseClippedWidth = clippedWidth / phraseWidthToPixels[depth], + leftMargin = 0 - (clippedWidth % phraseWidthToPixels[depth]); +// leftMargin = 0; + + if (rightMargin > lbufWidth) + clippedWidth = rightMargin - lbufWidth, + phraseClippedWidth = clippedWidth / phraseWidthToPixels[depth];//, +// rightMargin = lbufWidth + (clippedWidth % phraseWidthToPixels[depth]); +// rightMargin = lbufWidth; +*/ +if (depth > 5) + WriteLog("OP: We're about to encounter a divide by zero error!\n"); + // NOTE: We're just using endPos to figure out how much, if any, to clip by. + // ALSO: There may be another case where we start out of bounds and end out of bounds...! + // !!! FIX !!! + if (startPos < 0) // Case #1: Begin out, end in, L to R + clippedWidth = 0 - startPos, + dataClippedWidth = phraseClippedWidth = clippedWidth / phraseWidthToPixels[depth], + startPos = 0 - (clippedWidth % phraseWidthToPixels[depth]); + + if (endPos < 0) // Case #2: Begin in, end out, R to L + clippedWidth = 0 - endPos, + phraseClippedWidth = clippedWidth / phraseWidthToPixels[depth]; + + if (endPos > lbufWidth) // Case #3: Begin in, end out, L to R + clippedWidth = endPos - lbufWidth, + phraseClippedWidth = clippedWidth / phraseWidthToPixels[depth]; + + if (startPos > lbufWidth) // Case #4: Begin out, end in, R to L + clippedWidth = startPos - lbufWidth, + dataClippedWidth = phraseClippedWidth = clippedWidth / phraseWidthToPixels[depth], + startPos = lbufWidth + (clippedWidth % phraseWidthToPixels[depth]); + + // If the image is sitting on the line buffer left or right edge, we need to compensate + // by decreasing the image phrase width accordingly. + iwidth -= phraseClippedWidth; + + // Also, if we're clipping the phrase we need to make sure we're in the correct part of + // the pixel data. +// data += phraseClippedWidth * (pitch << 3); + data += dataClippedWidth * pitch; + + // NOTE: When the bitmap is in REFLECT mode, the XPOS marks the *right* side of the + // bitmap! This makes clipping & etc. MUCH, much easier...! +// uint32 lbufAddress = 0x1800 + (!in24BPPMode ? leftMargin * 2 : leftMargin * 4); +//Why does this work right when multiplying startPos by 2 (instead of 4) for 24 BPP mode? +//Is this a bug in the OP? + uint32 lbufAddress = 0x1800 + (!in24BPPMode ? startPos * 2 : startPos * 2); + uint8 * currentLineBuffer = &tomRam8[lbufAddress]; + + // Render. + +// Hmm. We check above for 24 BPP mode, but don't do anything about it below... +// If we *were* in 24 BPP mode, how would you convert CRY to RGB24? Seems to me +// that if you're in CRY mode then you wouldn't be able to use 24 BPP bitmaps +// anyway. +// This seems to be the case (at least according to the Midsummer docs)...! + + if (depth == 0) // 1 BPP + { + // The LSB of flags is OPFLAG_REFLECT, so sign extend it and or 2 into it. + int32 lbufDelta = ((int8)((flags << 7) & 0xFF) >> 5) | 0x02; + + // Fetch 1st phrase... + uint64 pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); +//Note that firstPix should only be honored *if* we start with the 1st phrase of the bitmap +//i.e., we didn't clip on the margin... !!! FIX !!! + pixels <<= firstPix; // Skip first N pixels (N=firstPix)... + int i = firstPix; // Start counter at right spot... + + while (iwidth--) + { + while (i++ < 64) + { + uint8 bit = pixels >> 63; + if (flagTRANS && bit == 0) + ; // Do nothing... + else + { + if (!flagRMW) +//Optimize: Set palleteRAM16 to beginning of palette RAM + index*2 and use only [bit] as index... +//Won't optimize RMW case though... + // This is the *only* correct use of endian-dependent code + // (i.e., mem-to-mem direct copying)! + *(uint16 *)currentLineBuffer = paletteRAM16[index | bit]; + else + *currentLineBuffer = + BLEND_CR(*currentLineBuffer, paletteRAM[(index | bit) << 1]), + *(currentLineBuffer + 1) = + BLEND_Y(*(currentLineBuffer + 1), paletteRAM[((index | bit) << 1) + 1]); + } + + currentLineBuffer += lbufDelta; + pixels <<= 1; + } + i = 0; + // Fetch next phrase... + data += pitch; + pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); + } } + else if (depth == 1) // 2 BPP + { +if (firstPix) + WriteLog("OP: Fixed bitmap @ 2 BPP requesting FIRSTPIX! (fp=%u)\n", firstPix); + index &= 0xFC; // Top six bits form CLUT index + // The LSB is OPFLAG_REFLECT, so sign extend it and or 2 into it. + int32 lbufDelta = ((int8)((flags << 7) & 0xFF) >> 5) | 0x02; - for(int i=0; i<256*256; i++) + while (iwidth--) + { + // Fetch phrase... + uint64 pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); + data += pitch; + + for(int i=0; i<32; i++) + { + uint8 bits = pixels >> 62; +// Seems to me that both of these are in the same endian, so we could cast it as +// uint16 * and do straight across copies (what about 24 bpp? Treat it differently...) +// This only works for the palettized modes (1 - 8 BPP), since we actually have to +// copy data from memory in 16 BPP mode (or does it? Isn't this the same as the CLUT case?) +// No, it isn't because we read the memory in an endian safe way--this *won't* work... + if (flagTRANS && bits == 0) + ; // Do nothing... + else + { + if (!flagRMW) + *(uint16 *)currentLineBuffer = paletteRAM16[index | bits]; + else + *currentLineBuffer = + BLEND_CR(*currentLineBuffer, paletteRAM[(index | bits) << 1]), + *(currentLineBuffer + 1) = + BLEND_Y(*(currentLineBuffer + 1), paletteRAM[((index | bits) << 1) + 1]); + } + + currentLineBuffer += lbufDelta; + pixels <<= 2; + } + } + } + else if (depth == 2) // 4 BPP { - int cl = (i >> 8) & 0xFF; - int dcl = (int8)(i & 0xFF); - cl += dcl; - if (cl < 0) - cl = 0; - else if (cl > 0xFF) - cl = 0xFF; - op_blend_cc[i] = cl; +if (firstPix) + WriteLog("OP: Fixed bitmap @ 4 BPP requesting FIRSTPIX! (fp=%u)\n", firstPix); + index &= 0xF0; // Top four bits form CLUT index + // The LSB is OPFLAG_REFLECT, so sign extend it and or 2 into it. + int32 lbufDelta = ((int8)((flags << 7) & 0xFF) >> 5) | 0x02; + + while (iwidth--) + { + // Fetch phrase... + uint64 pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); + data += pitch; + + for(int i=0; i<16; i++) + { + uint8 bits = pixels >> 60; +// Seems to me that both of these are in the same endian, so we could cast it as +// uint16 * and do straight across copies (what about 24 bpp? Treat it differently...) +// This only works for the palettized modes (1 - 8 BPP), since we actually have to +// copy data from memory in 16 BPP mode (or does it? Isn't this the same as the CLUT case?) +// No, it isn't because we read the memory in an endian safe way--this *won't* work... + if (flagTRANS && bits == 0) + ; // Do nothing... + else + { + if (!flagRMW) + *(uint16 *)currentLineBuffer = paletteRAM16[index | bits]; + else + *currentLineBuffer = + BLEND_CR(*currentLineBuffer, paletteRAM[(index | bits) << 1]), + *(currentLineBuffer + 1) = + BLEND_Y(*(currentLineBuffer + 1), paletteRAM[((index | bits) << 1) + 1]); + } + + currentLineBuffer += lbufDelta; + pixels <<= 4; + } + } } - op_reset(); -} -////////////////////////////////////////////////////////////////////////////// -// -////////////////////////////////////////////////////////////////////////////// -// -// -// -////////////////////////////////////////////////////////////////////////////// -void op_reset(void) -{ - memset(objectp_ram, 0x00, 0x18); - objectp_running = 0; -} -////////////////////////////////////////////////////////////////////////////// -// -////////////////////////////////////////////////////////////////////////////// -// -// -// -////////////////////////////////////////////////////////////////////////////// -void op_done(void) -{ -} -////////////////////////////////////////////////////////////////////////////// -// -////////////////////////////////////////////////////////////////////////////// -// -// -// -////////////////////////////////////////////////////////////////////////////// -void op_byte_write(uint32 offset, uint8 data) -{ - offset &= 0x3F; - objectp_ram[offset] = data; -} -////////////////////////////////////////////////////////////////////////////// -// -////////////////////////////////////////////////////////////////////////////// -// -// -// -////////////////////////////////////////////////////////////////////////////// -void op_word_write(uint32 offset, uint16 data) -{ - offset &= 0x3F; - objectp_ram[offset] = (data >> 8) & 0xFF; - objectp_ram[offset+1] = data & 0xFF; + else if (depth == 3) // 8 BPP + { + // The LSB is OPFLAG_REFLECT, so sign extend it and or 2 into it. + int32 lbufDelta = ((int8)((flags << 7) & 0xFF) >> 5) | 0x02; + // Fetch 1st phrase... + uint64 pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); +//Note that firstPix should only be honored *if* we start with the 1st phrase of the bitmap +//i.e., we didn't clip on the margin... !!! FIX !!! + firstPix &= 0x30; // Only top two bits are valid for 8 BPP + pixels <<= firstPix; // Skip first N pixels (N=firstPix)... + int i = firstPix >> 3; // Start counter at right spot... + + while (iwidth--) + { + while (i++ < 8) + { + uint8 bits = pixels >> 56; +// Seems to me that both of these are in the same endian, so we could cast it as +// uint16 * and do straight across copies (what about 24 bpp? Treat it differently...) +// This only works for the palettized modes (1 - 8 BPP), since we actually have to +// copy data from memory in 16 BPP mode (or does it? Isn't this the same as the CLUT case?) +// No, it isn't because we read the memory in an endian safe way--this *won't* work... + if (flagTRANS && bits == 0) + ; // Do nothing... + else + { + if (!flagRMW) + *(uint16 *)currentLineBuffer = paletteRAM16[bits]; + else + *currentLineBuffer = + BLEND_CR(*currentLineBuffer, paletteRAM[bits << 1]), + *(currentLineBuffer + 1) = + BLEND_Y(*(currentLineBuffer + 1), paletteRAM[(bits << 1) + 1]); + } + + currentLineBuffer += lbufDelta; + pixels <<= 8; + } + i = 0; + // Fetch next phrase... + data += pitch; + pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); + } + } + else if (depth == 4) // 16 BPP + { +if (firstPix) + WriteLog("OP: Fixed bitmap @ 16 BPP requesting FIRSTPIX! (fp=%u)\n", firstPix); + // The LSB is OPFLAG_REFLECT, so sign extend it and or 2 into it. + int32 lbufDelta = ((int8)((flags << 7) & 0xFF) >> 5) | 0x02; + + while (iwidth--) + { + // Fetch phrase... + uint64 pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); + data += pitch; + + for(int i=0; i<4; i++) + { + uint8 bitsHi = pixels >> 56, bitsLo = pixels >> 48; +// Seems to me that both of these are in the same endian, so we could cast it as +// uint16 * and do straight across copies (what about 24 bpp? Treat it differently...) +// This only works for the palettized modes (1 - 8 BPP), since we actually have to +// copy data from memory in 16 BPP mode (or does it? Isn't this the same as the CLUT case?) +// No, it isn't because we read the memory in an endian safe way--it *won't* work... + if (flagTRANS && (bitsLo | bitsHi) == 0) + ; // Do nothing... + else + { + if (!flagRMW) + *currentLineBuffer = bitsHi, + *(currentLineBuffer + 1) = bitsLo; + else + *currentLineBuffer = + BLEND_CR(*currentLineBuffer, bitsHi), + *(currentLineBuffer + 1) = + BLEND_Y(*(currentLineBuffer + 1), bitsLo); + } + + currentLineBuffer += lbufDelta; + pixels <<= 16; + } + } + } + else if (depth == 5) // 24 BPP + { +//Looks like Iron Soldier is the only game that uses 24BPP mode... +//There *might* be others... +//WriteLog("OP: Writing 24 BPP bitmap!\n"); +if (firstPix) + WriteLog("OP: Fixed bitmap @ 24 BPP requesting FIRSTPIX! (fp=%u)\n", firstPix); + // Not sure, but I think RMW only works with 16 BPP and below, and only in CRY mode... + // The LSB of flags is OPFLAG_REFLECT, so sign extend it and OR 4 into it. + int32 lbufDelta = ((int8)((flags << 7) & 0xFF) >> 4) | 0x04; + + while (iwidth--) + { + // Fetch phrase... + uint64 pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); + data += pitch; + + for(int i=0; i<2; i++) + { + // We don't use a 32-bit var here because of endian issues...! + uint8 bits3 = pixels >> 56, bits2 = pixels >> 48, + bits1 = pixels >> 40, bits0 = pixels >> 32; + + if (flagTRANS && (bits3 | bits2 | bits1 | bits0) == 0) + ; // Do nothing... + else + *currentLineBuffer = bits3, + *(currentLineBuffer + 1) = bits2, + *(currentLineBuffer + 2) = bits1, + *(currentLineBuffer + 3) = bits0; + + currentLineBuffer += lbufDelta; + pixels <<= 32; + } + } + } } -////////////////////////////////////////////////////////////////////////////// -// -////////////////////////////////////////////////////////////////////////////// -// -// -// -////////////////////////////////////////////////////////////////////////////// -uint8 op_byte_read(uint32 offset) -{ - offset &= 0x3F; - return objectp_ram[offset]; -} -////////////////////////////////////////////////////////////////////////////// -// -////////////////////////////////////////////////////////////////////////////// -// + // +// Store scaled bitmap in line buffer // -////////////////////////////////////////////////////////////////////////////// -uint16 op_word_read(uint32 offset) +void OPProcessScaledBitmap(uint64 p0, uint64 p1, uint64 p2, bool render) { - return (objectp_ram[offset & 0x3F] << 8) | objectp_ram[(offset+1) & 0x3F]; -} -////////////////////////////////////////////////////////////////////////////// -// -////////////////////////////////////////////////////////////////////////////// -// -// -// -////////////////////////////////////////////////////////////////////////////// -uint32 op_get_list_pointer(void) +// Need to make sure that when writing that it stays within the line buffer... +// LBUF ($F01800 - $F01D9E) 360 x 32-bit RAM + uint8 depth = (p1 >> 12) & 0x07; // Color depth of image + int32 xpos = ((int16)((p1 << 4) & 0xFFFF)) >> 4;// Image xpos in LBUF + uint32 iwidth = (p1 >> 28) & 0x3FF; // Image width in *phrases* + uint32 data = (p0 >> 40) & 0xFFFFF8; // Pixel data address +//#ifdef OP_DEBUG_BMP +// Prolly should use this... Though not sure exactly how. +//Use the upper bits as an offset into the phrase depending on the BPP. That's how! + uint32 firstPix = (p1 >> 49) & 0x3F; +//This is WEIRD! I'm sure I saw Atari Karts request 8 BPP FIRSTPIX! What happened??? +if (firstPix) + WriteLog("OP: FIRSTPIX != 0! (Scaled BM)\n"); +//#endif +// We can ignore the RELEASE (high order) bit for now--probably forever...! +// uint8 flags = (p1 >> 45) & 0x0F; // REFLECT, RMW, TRANS, RELEASE +//Optimize: break these out to their own BOOL values [DONE] + uint8 flags = (p1 >> 45) & 0x07; // REFLECT (0), RMW (1), TRANS (2) + bool flagREFLECT = (flags & OPFLAG_REFLECT ? true : false), + flagRMW = (flags & OPFLAG_RMW ? true : false), + flagTRANS = (flags & OPFLAG_TRANS ? true : false); + uint8 index = (p1 >> 37) & 0xFE; // CLUT index offset (upper pix, 1-4 bpp) + uint32 pitch = (p1 >> 15) & 0x07; // Phrase pitch + + uint8 * tomRam8 = TOMGetRamPointer(); + uint8 * paletteRAM = &tomRam8[0x400]; + // This is OK as long as it's used correctly: For 16-bit RAM to RAM direct copies--NOT + // for use when using endian-corrected data (i.e., any of the *ReadWord functions!) + uint16 * paletteRAM16 = (uint16 *)paletteRAM; + + uint8 hscale = p2 & 0xFF; +// Hmm. It seems that fixing the horizontal scale necessitated re-fixing this. Not sure why, +// but seems to be consistent with the vertical scaling now (and it may turn out to be wrong!)... + uint8 horizontalRemainder = hscale; // Not sure if it starts full, but seems reasonable [It's not!] +// uint8 horizontalRemainder = 0; // Let's try zero! Seems to work! Yay! [No, it doesn't!] + int32 scaledWidthInPixels = (iwidth * phraseWidthToPixels[depth] * hscale) >> 5; + uint32 scaledPhrasePixels = (phraseWidthToPixels[depth] * hscale) >> 5; + +// WriteLog("bitmap %ix? %ibpp at %i,? firstpix=? data=0x%.8x pitch %i hflipped=%s dwidth=? (linked to ?) RMW=%s Tranparent=%s\n", +// iwidth, op_bitmap_bit_depth[bitdepth], xpos, ptr, pitch, (flags&OPFLAG_REFLECT ? "yes" : "no"), (flags&OPFLAG_RMW ? "yes" : "no"), (flags&OPFLAG_TRANS ? "yes" : "no")); + +// Looks like an hscale of zero means don't draw! + if (!render || iwidth == 0 || hscale == 0) + return; + +/*extern int start_logging; +if (start_logging) + WriteLog("OP: Scaled bitmap %ix? %ibpp at %i,? hscale=%02X fpix=%i data=%08X pitch %i hflipped=%s dwidth=? (linked to %08X) Transluency=%s\n", + iwidth, op_bitmap_bit_depth[depth], xpos, hscale, firstPix, data, pitch, (flagREFLECT ? "yes" : "no"), op_pointer, (flagRMW ? "yes" : "no"));*/ +//#define OP_DEBUG_BMP +//#ifdef OP_DEBUG_BMP +// WriteLog("OP: Scaled bitmap %ix%i %ibpp at %i,%i firstpix=%i data=0x%.8x pitch %i hflipped=%s dwidth=%i (linked to 0x%.8x) Transluency=%s\n", +// iwidth, height, op_bitmap_bit_depth[bitdepth], xpos, ypos, firstPix, ptr, pitch, (flags&OPFLAG_REFLECT ? "yes" : "no"), dwidth, op_pointer, (flags&OPFLAG_RMW ? "yes" : "no")); +//#endif + + int32 startPos = xpos, endPos = xpos + + (!flagREFLECT ? scaledWidthInPixels - 1 : -(scaledWidthInPixels + 1)); + uint32 clippedWidth = 0, phraseClippedWidth = 0, dataClippedWidth = 0; + bool in24BPPMode = (((GET16(tomRam8, 0x0028) >> 1) & 0x03) == 1 ? true : false); // VMODE + // Not sure if this is Jaguar Two only location or what... + // From the docs, it is... If we want to limit here we should think of something else. +// int32 limit = GET16(tom_ram_8, 0x0008); // LIMIT + int32 limit = 720; + int32 lbufWidth = (!in24BPPMode ? limit - 1 : (limit / 2) - 1); // Zero based limit... + + // If the image is completely to the left or right of the line buffer, then bail. +//If in REFLECT mode, then these values are swapped! !!! FIX !!! [DONE] +//There are four possibilities: +// 1. image sits on left edge and no REFLECT; starts out of bounds but ends in bounds. +// 2. image sits on left edge and REFLECT; starts in bounds but ends out of bounds. +// 3. image sits on right edge and REFLECT; starts out of bounds but ends in bounds. +// 4. image sits on right edge and no REFLECT; starts in bounds but ends out of bounds. +//Numbers 2 & 4 can be caught by checking the LBUF clip while in the inner loop, +// numbers 1 & 3 are of concern. +// This *indirectly* handles only cases 2 & 4! And is WRONG if REFLECT is set...! +// if (rightMargin < 0 || leftMargin > lbufWidth) + +// It might be easier to swap these (if REFLECTed) and just use XPOS down below... +// That way, you could simply set XPOS to leftMargin if !REFLECT and to rightMargin otherwise. +// Still have to be careful with the DATA and IWIDTH values though... + + if ((!flagREFLECT && (endPos < 0 || startPos > lbufWidth)) + || (flagREFLECT && (startPos < 0 || endPos > lbufWidth))) + return; + + // Otherwise, find the clip limits and clip the phrase as well... + // NOTE: I'm fudging here by letting the actual blit overstep the bounds of the + // line buffer, but it shouldn't matter since there are two unused line + // buffers below and nothing above and I'll at most write 40 bytes outside + // the line buffer... I could use a fractional clip begin/end value, but + // this makes the blit a *lot* more hairy. I might fix this in the future + // if it becomes necessary. (JLH) + // Probably wouldn't be *that* hairy. Just use a delta that tells the inner loop + // which pixel in the phrase is being written, and quit when either end of phrases + // is reached or line buffer extents are surpassed. + +//This stuff is probably wrong as well... !!! FIX !!! +//The strange thing is that it seems to work, but that's no guarantee that it's bulletproof! +//Yup. Seems that JagMania doesn't work correctly with this... +//Dunno if this is the problem, but Atari Karts is showing *some* of the road now... +//Actually, it is! Or, it was. It doesn't seem to be clipping here, so the problem lies +//elsewhere! Hmm. Putting the scaling code into the 1/2/8 BPP cases seems to draw the ground +// a bit more accurately... Strange! +//It's probably a case of the REFLECT flag being set and the background being written +//from the right side of the screen... +//But no, it isn't... At least if the diagnostics are telling the truth! + + // NOTE: We're just using endPos to figure out how much, if any, to clip by. + // ALSO: There may be another case where we start out of bounds and end out of bounds...! + // !!! FIX !!! + +//There's a problem here with scaledPhrasePixels in that it can be forced to zero when +//the scaling factor is small. So fix it already! !!! FIX !!! +/*if (scaledPhrasePixels == 0) { - uint32 ptr = objectp_ram[0x22]; - ptr <<= 8; - ptr |= objectp_ram[0x23]; - ptr <<= 8; - ptr |= objectp_ram[0x20]; - ptr <<= 8; - ptr |= objectp_ram[0x21]; - ptr &= ~0x07; - - return ptr;//*/ -// return (objectp_ram[0x20] << 24) | (objectp_ram[0x21] << 16) | (objectp_ram[0x22] << 8) | objectp_ram[0x23]; -} -////////////////////////////////////////////////////////////////////////////// -// -////////////////////////////////////////////////////////////////////////////// -// + WriteLog("OP: [Scaled] We're about to encounter a divide by zero error!\n"); + DumpScaledObject(p0, p1, p2); +}//*/ +//NOTE: I'm almost 100% sure that this is wrong... And it is! :-p + +//Try a simple example... +// Let's say we have a 8 BPP scanline with an hscale of $80 (4). Our xpos is -10, +// non-flipped. Pixels in the bitmap are XYZXYZXYZXYZXYZ. +// Scaled up, they would be XXXXYYYYZZZZXXXXYYYYZZZZXXXXYYYYZZZZ... // +// Normally, we would expect this in the line buffer: +// ZZXXXXYYYYZZZZXXXXYYYYZZZZ... // -////////////////////////////////////////////////////////////////////////////// -uint32 op_get_status_register(void) -{ - uint32 ptr = objectp_ram[0x26]; - ptr <<= 8; - ptr |= objectp_ram[0x27]; - ptr <<= 8; - ptr |= objectp_ram[0x28]; - ptr <<= 8; - ptr |= objectp_ram[0x29]; - - return ptr; -} -////////////////////////////////////////////////////////////////////////////// +// But instead we're getting: +// XXXXYYYYZZZZXXXXYYYYZZZZ... // -////////////////////////////////////////////////////////////////////////////// +// or are we??? It would seem so, simply by virtue of the fact that we're NOT starting +// on negative boundary--or are we? Hmm... +// cw = 10, dcw = pcw = 10 / ([8 * 4 = 32] 32) = 0, sp = -10 // +// Let's try a real world example: // +//OP: Scaled bitmap (70, 8 BPP, spp=28) sp (-400) < 0... [new sp=-8, cw=400, dcw=pcw=14] +//OP: Scaled bitmap (6F, 8 BPP, spp=27) sp (-395) < 0... [new sp=-17, cw=395, dcw=pcw=14] // -////////////////////////////////////////////////////////////////////////////// -void op_set_status_register(uint32 data) +// Really, spp is 27.75 in the second case... +// So... If we do 395 / 27.75, we get 14. Ok so far... If we scale that against the +// start position (14 * 27.75), we get -6.5... NOT -17! + +//Now it seems we're working OK, at least for the first case... +uint32 scaledPhrasePixelsUS = phraseWidthToPixels[depth] * hscale; + + if (startPos < 0) // Case #1: Begin out, end in, L to R { - objectp_ram[0x26] = (data & 0xFF000000) >> 24; - objectp_ram[0x27] = (data & 0x00FF0000) >> 16; - objectp_ram[0x28] = (data & 0x0000FF00) >> 8; - objectp_ram[0x29] |= (data & 0xFE); +extern int start_logging; +if (start_logging) + WriteLog("OP: Scaled bitmap (%02X, %u BPP, spp=%u) start pos (%i) < 0...", hscale, op_bitmap_bit_depth[depth], scaledPhrasePixels, startPos); +// clippedWidth = 0 - startPos, + clippedWidth = (0 - startPos) << 5, +// dataClippedWidth = phraseClippedWidth = clippedWidth / scaledPhrasePixels, + dataClippedWidth = phraseClippedWidth = (clippedWidth / scaledPhrasePixelsUS) >> 5, +// startPos = 0 - (clippedWidth % scaledPhrasePixels); + startPos += (dataClippedWidth * scaledPhrasePixelsUS) >> 5; +if (start_logging) + WriteLog(" [new sp=%i, cw=%i, dcw=pcw=%i]\n", startPos, clippedWidth, dataClippedWidth); } -////////////////////////////////////////////////////////////////////////////// -// -////////////////////////////////////////////////////////////////////////////// -// -// -// -////////////////////////////////////////////////////////////////////////////// -void op_set_current_object(uint64 object) + + if (endPos < 0) // Case #2: Begin in, end out, R to L + clippedWidth = 0 - endPos, + phraseClippedWidth = clippedWidth / scaledPhrasePixels; + + if (endPos > lbufWidth) // Case #3: Begin in, end out, L to R + clippedWidth = endPos - lbufWidth, + phraseClippedWidth = clippedWidth / scaledPhrasePixels; + + if (startPos > lbufWidth) // Case #4: Begin out, end in, R to L + clippedWidth = startPos - lbufWidth, + dataClippedWidth = phraseClippedWidth = clippedWidth / scaledPhrasePixels, + startPos = lbufWidth + (clippedWidth % scaledPhrasePixels); + +extern int op_start_log; +if (op_start_log && clippedWidth != 0) + WriteLog("OP: Clipped line. SP=%i, EP=%i, clip=%u, iwidth=%u, hscale=%02X\n", startPos, endPos, clippedWidth, iwidth, hscale); +if (op_start_log && startPos == 13) { - // less significant 32 bits first - objectp_ram[0x13] = object&0xff; object>>=8; - objectp_ram[0x12] = object&0xff; object>>=8; - objectp_ram[0x11] = object&0xff; object>>=8; - objectp_ram[0x10] = object&0xff; object>>=8; - - objectp_ram[0x17] = object&0xff; object>>=8; - objectp_ram[0x16] = object&0xff; object>>=8; - objectp_ram[0x15] = object&0xff; object>>=8; - objectp_ram[0x14] = object&0xff; + WriteLog("OP: Scaled line. SP=%i, EP=%i, clip=%u, iwidth=%u, hscale=%02X, depth=%u, firstPix=%u\n", startPos, endPos, clippedWidth, iwidth, hscale, depth, firstPix); + DumpScaledObject(p0, p1, p2); + if (iwidth == 7) + { + WriteLog(" %08X: ", data); + for(int i=0; i<7*8; i++) + WriteLog("%02X ", JaguarReadByte(data+i)); + WriteLog("\n"); + } } + // If the image is sitting on the line buffer left or right edge, we need to compensate + // by decreasing the image phrase width accordingly. + iwidth -= phraseClippedWidth; + + // Also, if we're clipping the phrase we need to make sure we're in the correct part of + // the pixel data. +// data += phraseClippedWidth * (pitch << 3); + data += dataClippedWidth * (pitch << 3); + + // NOTE: When the bitmap is in REFLECT mode, the XPOS marks the *right* side of the + // bitmap! This makes clipping & etc. MUCH, much easier...! +// uint32 lbufAddress = 0x1800 + (!in24BPPMode ? leftMargin * 2 : leftMargin * 4); +// uint32 lbufAddress = 0x1800 + (!in24BPPMode ? startPos * 2 : startPos * 4); + uint32 lbufAddress = 0x1800 + startPos * 2; + uint8 * currentLineBuffer = &tomRam8[lbufAddress]; +//uint8 * lineBufferLowerLimit = &tom_ram_8[0x1800], +// * lineBufferUpperLimit = &tom_ram_8[0x1800 + 719]; + + // Render. + +// Hmm. We check above for 24 BPP mode, but don't do anything about it below... +// If we *were* in 24 BPP mode, how would you convert CRY to RGB24? Seems to me +// that if you're in CRY mode then you wouldn't be able to use 24 BPP bitmaps +// anyway. +// This seems to be the case (at least according to the Midsummer docs)...! + + if (depth == 0) // 1 BPP + { +if (firstPix != 0) + WriteLog("OP: Scaled bitmap @ 1 BPP requesting FIRSTPIX!\n"); + // The LSB of flags is OPFLAG_REFLECT, so sign extend it and or 2 into it. + int32 lbufDelta = ((int8)((flags << 7) & 0xFF) >> 5) | 0x02; + + int pixCount = 0; + uint64 pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); + + while ((int32)iwidth > 0) + { + uint8 bits = pixels >> 63; + + if (flagTRANS && bits == 0) + ; // Do nothing... + else + { + if (!flagRMW) + // This is the *only* correct use of endian-dependent code + // (i.e., mem-to-mem direct copying)! + *(uint16 *)currentLineBuffer = paletteRAM16[index | bits]; + else + *currentLineBuffer = + BLEND_CR(*currentLineBuffer, paletteRAM[(index | bits) << 1]), + *(currentLineBuffer + 1) = + BLEND_Y(*(currentLineBuffer + 1), paletteRAM[((index | bits) << 1) + 1]); + } + + currentLineBuffer += lbufDelta; + +/* horizontalRemainder -= 0x20; // Subtract 1.0f in [3.5] fixed point format + while (horizontalRemainder & 0x80) + { + horizontalRemainder += hscale; + pixCount++; + pixels <<= 1; + }//*/ + while (horizontalRemainder <= 0x20) // I.e., it's <= 0 (*before* subtraction) + { + horizontalRemainder += hscale; + pixCount++; + pixels <<= 1; + } + horizontalRemainder -= 0x20; // Subtract 1.0f in [3.5] fixed point format + + if (pixCount > 63) + { + int phrasesToSkip = pixCount / 64, pixelShift = pixCount % 64; + + data += (pitch << 3) * phrasesToSkip; + pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); + pixels <<= 1 * pixelShift; + iwidth -= phrasesToSkip; + pixCount = pixelShift; + } + } + } + else if (depth == 1) // 2 BPP + { +if (firstPix != 0) + WriteLog("OP: Scaled bitmap @ 2 BPP requesting FIRSTPIX!\n"); + index &= 0xFC; // Top six bits form CLUT index + // The LSB is OPFLAG_REFLECT, so sign extend it and or 2 into it. + int32 lbufDelta = ((int8)((flags << 7) & 0xFF) >> 5) | 0x02; + + int pixCount = 0; + uint64 pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); + + while ((int32)iwidth > 0) + { + uint8 bits = pixels >> 62; + + if (flagTRANS && bits == 0) + ; // Do nothing... + else + { + if (!flagRMW) + // This is the *only* correct use of endian-dependent code + // (i.e., mem-to-mem direct copying)! + *(uint16 *)currentLineBuffer = paletteRAM16[index | bits]; + else + *currentLineBuffer = + BLEND_CR(*currentLineBuffer, paletteRAM[(index | bits) << 1]), + *(currentLineBuffer + 1) = + BLEND_Y(*(currentLineBuffer + 1), paletteRAM[((index | bits) << 1) + 1]); + } + + currentLineBuffer += lbufDelta; + +/* horizontalRemainder -= 0x20; // Subtract 1.0f in [3.5] fixed point format + while (horizontalRemainder & 0x80) + { + horizontalRemainder += hscale; + pixCount++; + pixels <<= 2; + }//*/ + while (horizontalRemainder <= 0x20) // I.e., it's <= 0 (*before* subtraction) + { + horizontalRemainder += hscale; + pixCount++; + pixels <<= 2; + } + horizontalRemainder -= 0x20; // Subtract 1.0f in [3.5] fixed point format + + if (pixCount > 31) + { + int phrasesToSkip = pixCount / 32, pixelShift = pixCount % 32; + data += (pitch << 3) * phrasesToSkip; + pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); + pixels <<= 2 * pixelShift; + iwidth -= phrasesToSkip; + pixCount = pixelShift; + } + } + } + else if (depth == 2) // 4 BPP + { +if (firstPix != 0) + WriteLog("OP: Scaled bitmap @ 4 BPP requesting FIRSTPIX!\n"); + index &= 0xF0; // Top four bits form CLUT index + // The LSB is OPFLAG_REFLECT, so sign extend it and or 2 into it. + int32 lbufDelta = ((int8)((flags << 7) & 0xFF) >> 5) | 0x02; + + int pixCount = 0; + uint64 pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); + + while ((int32)iwidth > 0) + { + uint8 bits = pixels >> 60; + + if (flagTRANS && bits == 0) + ; // Do nothing... + else + { + if (!flagRMW) + // This is the *only* correct use of endian-dependent code + // (i.e., mem-to-mem direct copying)! + *(uint16 *)currentLineBuffer = paletteRAM16[index | bits]; + else + *currentLineBuffer = + BLEND_CR(*currentLineBuffer, paletteRAM[(index | bits) << 1]), + *(currentLineBuffer + 1) = + BLEND_Y(*(currentLineBuffer + 1), paletteRAM[((index | bits) << 1) + 1]); + } + + currentLineBuffer += lbufDelta; + +/* horizontalRemainder -= 0x20; // Subtract 1.0f in [3.5] fixed point format + while (horizontalRemainder & 0x80) + { + horizontalRemainder += hscale; + pixCount++; + pixels <<= 4; + }//*/ + while (horizontalRemainder <= 0x20) // I.e., it's <= 0 (*before* subtraction) + { + horizontalRemainder += hscale; + pixCount++; + pixels <<= 4; + } + horizontalRemainder -= 0x20; // Subtract 1.0f in [3.5] fixed point format + + if (pixCount > 15) + { + int phrasesToSkip = pixCount / 16, pixelShift = pixCount % 16; + + data += (pitch << 3) * phrasesToSkip; + pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); + pixels <<= 4 * pixelShift; + iwidth -= phrasesToSkip; + pixCount = pixelShift; + } + } + } + else if (depth == 3) // 8 BPP + { +if (firstPix) + WriteLog("OP: Scaled bitmap @ 8 BPP requesting FIRSTPIX! (fp=%u)\n", firstPix); + // The LSB is OPFLAG_REFLECT, so sign extend it and or 2 into it. + int32 lbufDelta = ((int8)((flags << 7) & 0xFF) >> 5) | 0x02; + + int pixCount = 0; + uint64 pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); + + while ((int32)iwidth > 0) + { + uint8 bits = pixels >> 56; + + if (flagTRANS && bits == 0) + ; // Do nothing... + else + { + if (!flagRMW) + // This is the *only* correct use of endian-dependent code + // (i.e., mem-to-mem direct copying)! + *(uint16 *)currentLineBuffer = paletteRAM16[bits]; +/* { + if (currentLineBuffer >= lineBufferLowerLimit && currentLineBuffer <= lineBufferUpperLimit) + *(uint16 *)currentLineBuffer = paletteRAM16[bits]; + }*/ + else + *currentLineBuffer = + BLEND_CR(*currentLineBuffer, paletteRAM[bits << 1]), + *(currentLineBuffer + 1) = + BLEND_Y(*(currentLineBuffer + 1), paletteRAM[(bits << 1) + 1]); + } + + currentLineBuffer += lbufDelta; + + while (horizontalRemainder <= 0x20) // I.e., it's <= 0 (*before* subtraction) + { + horizontalRemainder += hscale; + pixCount++; + pixels <<= 8; + } + horizontalRemainder -= 0x20; // Subtract 1.0f in [3.5] fixed point format + + if (pixCount > 7) + { + int phrasesToSkip = pixCount / 8, pixelShift = pixCount % 8; + + data += (pitch << 3) * phrasesToSkip; + pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); + pixels <<= 8 * pixelShift; + iwidth -= phrasesToSkip; + pixCount = pixelShift; + } + } + } + else if (depth == 4) // 16 BPP + { +if (firstPix != 0) + WriteLog("OP: Scaled bitmap @ 16 BPP requesting FIRSTPIX!\n"); + // The LSB is OPFLAG_REFLECT, so sign extend it and OR 2 into it. + int32 lbufDelta = ((int8)((flags << 7) & 0xFF) >> 5) | 0x02; + + int pixCount = 0; + uint64 pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); + + while ((int32)iwidth > 0) + { + uint8 bitsHi = pixels >> 56, bitsLo = pixels >> 48; + + if (flagTRANS && (bitsLo | bitsHi) == 0) + ; // Do nothing... + else + { + if (!flagRMW) + *currentLineBuffer = bitsHi, + *(currentLineBuffer + 1) = bitsLo; + else + *currentLineBuffer = + BLEND_CR(*currentLineBuffer, bitsHi), + *(currentLineBuffer + 1) = + BLEND_Y(*(currentLineBuffer + 1), bitsLo); + } + + currentLineBuffer += lbufDelta; + +/* horizontalRemainder -= 0x20; // Subtract 1.0f in [3.5] fixed point format + while (horizontalRemainder & 0x80) + { + horizontalRemainder += hscale; + pixCount++; + pixels <<= 16; + }//*/ + while (horizontalRemainder <= 0x20) // I.e., it's <= 0 (*before* subtraction) + { + horizontalRemainder += hscale; + pixCount++; + pixels <<= 16; + } + horizontalRemainder -= 0x20; // Subtract 1.0f in [3.5] fixed point format +//*/ + if (pixCount > 3) + { + int phrasesToSkip = pixCount / 4, pixelShift = pixCount % 4; + + data += (pitch << 3) * phrasesToSkip; + pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); + pixels <<= 16 * pixelShift; + + iwidth -= phrasesToSkip; + + pixCount = pixelShift; + } + } + } + else if (depth == 5) // 24 BPP + { +//I'm not sure that you can scale a 24 BPP bitmap properly--the JTRM seem to indicate as much. +WriteLog("OP: Writing 24 BPP scaled bitmap!\n"); +if (firstPix != 0) + WriteLog("OP: Scaled bitmap @ 24 BPP requesting FIRSTPIX!\n"); + // Not sure, but I think RMW only works with 16 BPP and below, and only in CRY mode... + // The LSB is OPFLAG_REFLECT, so sign extend it and or 4 into it. + int32 lbufDelta = ((int8)((flags << 7) & 0xFF) >> 4) | 0x04; + + while (iwidth--) + { + // Fetch phrase... + uint64 pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP); + data += pitch << 3; // Multiply pitch * 8 (optimize: precompute this value) + + for(int i=0; i<2; i++) + { + uint8 bits3 = pixels >> 56, bits2 = pixels >> 48, + bits1 = pixels >> 40, bits0 = pixels >> 32; + + if (flagTRANS && (bits3 | bits2 | bits1 | bits0) == 0) + ; // Do nothing... + else + *currentLineBuffer = bits3, + *(currentLineBuffer + 1) = bits2, + *(currentLineBuffer + 2) = bits1, + *(currentLineBuffer + 3) = bits0; + + currentLineBuffer += lbufDelta; + pixels <<= 32; + } + } + } +}