//
// Object Processor
//
-// by cal2
+// Original source by Cal2
// GCC/SDL port by Niels Wagenaar (Linux/WIN32) and Caz (BeOS)
-// Cleanups by James L. Hammons
+// Extensive cleanups/fixes/rewrites by James L. Hammons
//
#include <stdio.h>
//#define OP_DEBUG
//#define OP_DEBUG_BMP
-//WTFITF???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
-static uint8 objectp_ram[0x40];
-uint8 objectp_running;
+#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
-uint8 objectp_stop_reading_list;
+#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
-#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
-/*
-#define OBJECT_TYPE_BITMAP 000
-#define OBJECT_TYPE_SCALE 001
-#define OBJECT_TYPE_GPU 010
-#define OBJECT_TYPE_BRANCH 011
-#define OBJECT_TYPE_STOP 100
-*/
+// Private function prototypes
-#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
+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 op_load_phrase(uint32 offset);
+
+// Local global variables
-#define FLAGS_RELEASE 8
-#define FLAGS_TRANSPARENT 4
-#define FLAGS_READMODIFY 2
-#define FLAGS_HFLIP 1
+static uint8 * op_blend_y;
+static uint8 * op_blend_cr;
+// There may be a problem with this "RAM" overlapping (and thus being independent of)
+// some of the regular TOM RAM...
+static uint8 objectp_ram[0x40]; // This is based at $F00000
+uint8 objectp_running;
+//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_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;
-//WTFITF???static int cnt_bitmap = 0;
+
+int32 phraseWidthToPixels[8] = { 64, 32, 16, 8, 4, 2, 0, 0 };
+
//
-// Object Processor bitmap processing
+// Object Processor initialization
//
-
-void op_process_bitmap(int16 * backbuffer, int scanline, uint64 p0, uint64 p1, int render)
+void op_init(void)
{
- uint8 bitdepth = (p1 >> 12) & 0x07;
- int16 ypos = ((p0 >> 3) & 0x3FF) / 2; // ??? What if not interlaced (/2)?
- int32 xpos = (((int32)((p1 << 20) & 0xFFFFFFFF)) >> 20) - tom_getHBlankWidthInPixels();
- int32 iwidth = ((p1 >> 28) & 0x3FF) * 4;
- int32 dwidth = ((p1 >> 18) & 0x3FF) * 4; // ??? Should it be signed or unsigned ???
- int16 height = ((p0 >> 14) & 0x3FF) - 1;
- uint32 link = ((p0 >> 24) & 0x7FFFF) << 3;
- uint32 ptr = ((p0 >> 43) & 0x1FFFFF) << 3;
-#ifdef OP_DEBUG_BMP
- uint32 firstPix = (p1 >> 49) & 0x3F;
-#endif
- 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;
-
-//if (scanline == 200)
-// fprintf(log_get(), "OP --> Current OPPtr: %08X, next: %08X, BMPPtr: %08X\n", op_pointer, link, ptr);
-
- 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)
- {
- 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;
-
-#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 ((scanline < ypos) || (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);
+ // Blend tables (64K each)
+ memory_malloc_secure((void **)&op_blend_y, 0x10000, "Jaguar Object processor Y blend lookup table");
+ memory_malloc_secure((void **)&op_blend_cr, 0x10000, "Jaguar Object processor CR blend lookup table");
- if (xpos < 0)
+ // 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 += xpos;
- ptr += (pitch * op_bitmap_bit_size[bitdepth] * (-xpos)) >> 16;
- xpos = 0;
- }
+ 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
- if (iwidth <= 0)
- {
-#ifdef OP_DEBUG_BMP
- fprintf(log_get(), "not rendering because iwidth <= 0\n");
-#endif
- return;
- }
-
- if (flags & FLAGS_HFLIP)
- {
- if ((xpos < 0) || ((xpos - iwidth) >= scanline_width))
- return;
+ y += dy;
+ if (y < 0)
+ y = 0;
+ else if (y > 0xFF)
+ y = 0xFF;
+ op_blend_y[i] = y;
- if ((xpos - iwidth) < 0)
- iwidth = xpos;
+ c1 += dc1;
+ if (c1 < 0)
+ c1 = 0;
+ else if (c1 > 0x0F)
+ c1 = 0x0F;
+ c2 += dc2;
+
+ if (c2 < 0)
+ c2 = 0;
+ else if (c2 > 0x0F)
+ c2 = 0x0F;
+ op_blend_cr[i] = (c2 << 4) | c1;
}
- else
- {
- if (((xpos + iwidth) < 0) || (xpos >= scanline_width))
- return;
- if ((xpos + iwidth) > scanline_width)
- iwidth = scanline_width - xpos;
- }
+ op_reset();
+}
- current_line_buffer += xpos * 2; // 2 in 16 bpp modes (need to take the mode into account)
+//
+// Object Processor reset
+//
+void op_reset(void)
+{
+ memset(objectp_ram, 0x00, 0x40);
+ objectp_running = 0;
+}
- // 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 "fbmpop1.h"
- }
- else
- {
-#include "fbmpop1p.h"
- }
- }
- else if (op_bitmap_bit_depth[bitdepth] == 2)
- {
- if (pitch == 1)
- {
-#include "fbmpop2.h"
- }
- else
- {
-#include "fbmpop2p.h"
- }
- }
- else if (op_bitmap_bit_depth[bitdepth] == 4)
- {
- if (pitch == 1)
- {
-#include "fbmpop4.h"
- }
- else
- {
-#include "fbmpop4p.h"
- }
- }
- else if (op_bitmap_bit_depth[bitdepth] == 8)
- {
- if (pitch == 1)
- {
-#include "fbmpop8.h"
- }
- else
- {
-#include "fbmpop8p.h"
- }
- }
- else if (op_bitmap_bit_depth[bitdepth] == 16)
- {
- if (pitch == 1)
- {
-#include "fbmpop16.h"
- }
- else
- {
-#include "fbmpop16p.h"
- }
- }
- else if (op_bitmap_bit_depth[bitdepth] == 24)
+void op_done(void)
+{
+ char * opType[8] =
+ { "(BITMAP)", "(SCALED BITMAP)", "(GPU INT)", "(BRANCH)", "(STOP)", "???", "???", "???" };
+ char * ccType[8] =
+ { "\"==\"", "\"<\"", "\">\"", "(opflag set)", "(second half line)", "?", "?", "?" };
+
+ uint32 olp = op_get_list_pointer();
+ WriteLog("OP: OLP = %08X\n", olp);
+ WriteLog("OP: Phrase dump\n ----------\n");
+ for(uint32 i=0; i<0x100; i+=8)
{
- if (pitch == 1)
- {
-#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 "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(op_load_phrase(olp+i), op_load_phrase(olp+i+8));
+ if ((lo & 0x07) == 1)
+ DumpScaledObject(op_load_phrase(olp+i), op_load_phrase(olp+i+8), op_load_phrase(olp+i+16));
}
+ WriteLog("\n");
}
//
-// Object Processor scaled bitmap processing
+// 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)
+uint8 OPReadByte(uint32 offset, uint32 who/*=UNKNOWN*/)
{
-// if ((render == 0) || (op_pointer == 0) || (height < 0) || (dwidth < 0) || (ptr == 0) || (pitch == 0))
-
- int32 xpos = (((int32)((p1 << 20) & 0xFFFFFFFF)) >> 20) - tom_getHBlankWidthInPixels();
- int16 ypos = ((p0 & 0x3FF8) >> 3) / 2;
- uint16 iwidth = ((p1 >> 28) & 0x3FF) * 4;
- int16 dwidth = ((p1 >> 18) & 0x3FF) * 4; // ??? Signed or unsigned ???
- int16 height = (p0 >> 14) & 0x3FF; // ??? Signed or unsigned ???
- uint32 link = ((p0 >> 24) & 0x7FFFF) << 3;
- uint32 ptr = ((p0 >> 43) & 0x1FFFFF) << 3;
-//unused 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];
- uint32 vscale_fixed3p5 = ((p2 >> 8) & 0xFF);
- uint32 hscale_fixed3p5 = (p2 & 0xFF);
- float vscale = (float)vscale_fixed3p5 / 32.0f, hscale = (float)hscale_fixed3p5 / 32.0f;
-
- 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 (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;
- }
+ offset &= 0x3F;
+ return objectp_ram[offset];
+}
- uint16 scaled_width = (uint16)((float)iwidth * hscale),
- scaled_height = (uint16)((float)height * vscale);
+uint16 OPReadWord(uint32 offset, uint32 who/*=UNKNOWN*/)
+{
+ offset &= 0x3F;
+ return GET16(objectp_ram, offset);
+}
- if (op_bitmap_bit_depth[bitdepth] == 4) // why ?
- scaled_width *= 2;
+void OPWriteByte(uint32 offset, uint8 data, uint32 who/*=UNKNOWN*/)
+{
+ offset &= 0x3F;
+ objectp_ram[offset] = data;
+}
- if (op_bitmap_bit_depth[bitdepth] == 2) // why ?
- scaled_width *= 4;
+void OPWriteWord(uint32 offset, uint16 data, uint32 who/*=UNKNOWN*/)
+{
+ offset &= 0x3F;
+ SET16(objectp_ram, offset, data);
- if (op_bitmap_bit_depth[bitdepth] == 1) // why ?
- scaled_width *= 8;
+/*if (offset == 0x20)
+WriteLog("OP: Setting lo list pointer: %04X\n", data);
+if (offset == 0x22)
+WriteLog("OP: Setting hi list pointer: %04X\n", data);//*/
+}
- // 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));
+uint32 op_get_list_pointer(void)
+{
+ // Note: This register is LO / HI WORD, hence the funky look of this...
+// return (objectp_ram[0x22] << 24) | (objectp_ram[0x23] << 16) | (objectp_ram[0x20] << 8) | objectp_ram[0x21];
+ return GET16(objectp_ram, 0x20) | (GET16(objectp_ram, 0x22) << 16);
+}
- // visible ?
- if ((scanline < ypos) || (scanline > (ypos+scaled_height)) || ((xpos+scaled_width) < 0)
- || (xpos >= scanline_width))
- return;
-
- 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;
+uint32 op_get_status_register(void)
+{
+// return (objectp_ram[0x26] << 24) | (objectp_ram[0x27] << 16) | (objectp_ram[0x28] << 8) | objectp_ram[0x29];
+// return GET32(objectp_ram, 0x26);
+ return GET16(objectp_ram, 0x26);
+}
- if (flags&FLAGS_HFLIP)
- {
- if ((xpos<0)||((xpos-scaled_width)>=scanline_width))
- return;
+// This is WRONG, since the OBF is only 16 bits wide!!! [FIXED]
- if ((xpos-scaled_width)<0)
- scaled_width=xpos;
- }
- else
- {
- if (((xpos+scaled_width)<0)||(xpos>=scanline_width))
- return;
+void op_set_status_register(uint32 data)
+{
+/* objectp_ram[0x26] = (data & 0xFF000000) >> 24;
+ objectp_ram[0x27] = (data & 0x00FF0000) >> 16;
+ objectp_ram[0x28] = (data & 0x0000FF00) >> 8;
+ objectp_ram[0x29] |= (data & 0xFE);*/
+ objectp_ram[0x26] = (data & 0x0000FF00) >> 8;
+ objectp_ram[0x27] |= (data & 0xFE);
+}
- if ((xpos+scaled_width)>scanline_width)
- scaled_width=scanline_width-xpos;
- }
-
- current_line_buffer += xpos * 2;
+void op_set_current_object(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;
- int32 hscale_fixed = (int32)(65536.0f / hscale);
- int32 cnt = 0;
+ 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...
+ 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; object >>= 8;
- if (op_bitmap_bit_depth[bitdepth] == 1)
- {
- if (pitch == 1)
- {
-#include "zbmpop1.h"
- }
- else
- {
-#include "zbmpop1p.h"
- }
- }
- else if (op_bitmap_bit_depth[bitdepth] == 2)
- {
- if (pitch == 1)
- {
-#include "zbmpop2.h"
- }
- else
- {
-#include "zbmpop2p.h"
- }
- }
- else if (op_bitmap_bit_depth[bitdepth] == 4)
- {
- if (pitch == 1)
- {
-#include "zbmpop4.h"
- }
- else
- {
-#include "zbmpop4p.h"
- }
- }
- else if (op_bitmap_bit_depth[bitdepth] == 8)
- {
- if (pitch == 1)
- {
-#include "zbmpop8.h"
- }
- else
- {
-#include "zbmpop8p.h"
- }
- }
- else if (op_bitmap_bit_depth[bitdepth] == 16)
- {
- if (pitch == 1)
- {
-#include "zbmpop16.h"
- }
- else
- {
-#include "zbmpop16p.h"
- }
- }
- else
- fprintf(log_get(),"(unimplemented) %i bpp scaled bitmap\n",op_bitmap_bit_depth[bitdepth]);
+ 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;
}
uint64 op_load_phrase(uint32 offset)
{
offset &= ~0x07; // 8 byte alignment
- return ((uint64)jaguar_long_read(offset) << 32) | (uint64)jaguar_long_read(offset+4);
+ return ((uint64)JaguarReadLong(offset, OP) << 32) | (uint64)JaguarReadLong(offset+4, OP);
+}
+
+void OPStorePhrase(uint32 offset, uint64 p)
+{
+ offset &= ~0x07; // 8 byte alignment
+ JaguarWriteLong(offset, p >> 32, OP);
+ JaguarWriteLong(offset + 4, p & 0xFFFFFFFF, OP);
}
//
-// Object Processor main list processing
+// Debugging routines
//
+void DumpScaledObject(uint64 p0, uint64 p1, uint64 p2)
+{
+ 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;
+ int16 ypos = ((p0 >> 3) & 0x3FF); // ??? 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 op_process_list(int16 * backbuffer, int scanline, int render)
+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;
+ int16 ypos = ((p0 >> 3) & 0x3FF); // ??? 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
+//
+//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)
+{
+extern int op_start_log;
// char * condition_to_str[8] =
// { "==", "<", ">", "(opflag set)", "(second half line)", "?", "?", "?" };
-//WTFITF??? cnt_bitmap = 0;
-
- if (scanline < tom_get_vdb())
- return;
-
- if (scanline >= 525)//tom_getVideoModeHeight()+tom_get_vdb())
- return;
op_pointer = op_get_list_pointer();
- objectp_stop_reading_list = 0;
-//WTFITF??? cnt = 0;
+// objectp_stop_reading_list = false;
+
+// *** BEGIN OP PROCESSOR TESTING ONLY ***
+extern bool interactiveMode;
+extern bool iToggle;
+extern int objectPtr;
+bool inhibit;
+int bitmapCounter = 0;
+// *** END OP PROCESSOR TESTING ONLY ***
-// 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;
+// *** 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 = op_load_phrase(op_pointer);
op_pointer += 8;
-/*if (scanline == tom_get_vdb())
+if (scanline == tom_get_vdb() && op_start_log)
+//if (scanline == 215 && op_start_log)
{
-fprintf(log_get(), "%08X --> phrase %08X %08X", op_pointer - 8, (int)(p0>>32), (int)(p0&0xFFFFFFFF));
+WriteLog("%08X --> phrase %08X %08X", op_pointer - 8, (int)(p0>>32), (int)(p0&0xFFFFFFFF));
if ((p0 & 0x07) == OBJECT_TYPE_BITMAP)
{
-fprintf(log_get(), " (BITMAP) ");
-uint64 p1 = op_load_phrase(op_pointer);
-fprintf(log_get(), "\n%08X --> phrase %08X %08X ", op_pointer, (int)(p1>>32), (int)(p1&0xFFFFFFFF));
+WriteLog(" (BITMAP) ");
+uint64 p1 = op_load_phrase(op_pointer);
+WriteLog("\n%08X --> phrase %08X %08X ", op_pointer, (int)(p1>>32), (int)(p1&0xFFFFFFFF));
+ uint8 bitdepth = (p1 >> 12) & 0x07;
+ int16 ypos = ((p0 >> 3) & 0x3FF); // ??? 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 = op_load_phrase(op_pointer), p2 = op_load_phrase(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;
int16 ypos = ((p0 >> 3) & 0x3FF); // ??? What if not interlaced (/2)?
-// int32 xpos = (((int32)((p1 << 20) & 0xFFFFFFFF)) >> 20);
int32 xpos = p1 & 0xFFF;
xpos = (xpos & 0x800 ? xpos | 0xFFFFF000 : xpos);
uint32 iwidth = ((p1 >> 28) & 0x3FF);
- uint32 dwidth = ((p1 >> 18) & 0x3FF); // ??? Should it be signed or unsigned ???
- int16 height = ((p0 >> 14) & 0x3FF) - 1;
+ 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;
-fprintf(log_get(), "[%u (%u) x %u @ %i, %u (%u bpp), l: %08X, p: %08X fp: %02X, fl:%02X, idx:%02X, pt:%02X]\n", iwidth, dwidth, height, xpos, ypos, op_bitmap_bit_depth[bitdepth], link, ptr, firstPix, flags, idx, pitch);
-uint8 * jaguar_mainRam = GetRamPtr();
-fprintf(log_get(), "[RAM] --> ");
-for(int k=0; k<16; k++)
- fprintf(log_get(), "%02X ", jaguar_mainRam[op_pointer-8 + k]);
-fprintf(log_get(), "\n");
-}
-if ((p0 & 0x07) == OBJECT_TYPE_SCALE)
-{
-fprintf(log_get(), " (SCALED BITMAP)\n");
+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)
-fprintf(log_get(), " (GPU)\n");
+WriteLog(" (GPU)\n");
if ((p0 & 0x07) == OBJECT_TYPE_BRANCH)
{
-fprintf(log_get(), " (BRANCH)\n");
+WriteLog(" (BRANCH)\n");
uint8 * jaguar_mainRam = GetRamPtr();
-fprintf(log_get(), "[RAM] --> ");
+WriteLog("[RAM] --> ");
for(int k=0; k<8; k++)
- fprintf(log_get(), "%02X ", jaguar_mainRam[op_pointer-8 + k]);
-fprintf(log_get(), "\n");
+ WriteLog("%02X ", jaguar_mainRam[op_pointer-8 + k]);
+WriteLog("\n");
}
if ((p0 & 0x07) == OBJECT_TYPE_STOP)
-fprintf(log_get(), " --> List end\n");
-}*/
+WriteLog(" --> List end\n");
+}//*/
-// fprintf(log_get(),"0x%.8x type %i\n",op_pointer,((uint8)p0&0x07));
+// WriteLog("%08X type %i\n", op_pointer, (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);
+ uint16 ypos = (p0 >> 3) & 0x3FF;
+// 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 = op_load_phrase(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(objectp_ram, 0x20, link & 0xFFFF); // OLP
+// SET16(objectp_ram, 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);
+ }
+ op_pointer = (p0 & 0x000007FFFF000000LL) >> 21;
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);
+ uint16 ypos = (p0 >> 3) & 0x3FF;
+ 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, op_load_phrase(op_pointer), op_load_phrase(op_pointer+8));
+}
+bitmapCounter++;
+if (!inhibit) // For OP testing only!
+// *** END OP PROCESSOR TESTING ONLY ***
+ if (scanline >= ypos && height > 0)
+ {
+ uint64 p1 = op_load_phrase(op_pointer);
+ op_pointer += 8;
+ uint64 p2 = op_load_phrase(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...
+/*
+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:
{
-//unused uint64 data = p0 >> 3;
+//WriteLog("OP: Asserting GPU IRQ #3...\n");
op_set_current_object(p0);
- gpu_set_irq_line(3, 1);
+ 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;
+ uint16 ypos = (p0 >> 3) & 0x7FF;
uint8 cc = (p0 >> 14) & 0x03;
- uint32 link = ((p0 >> 24) & 0x1FFFFF) << 3;
+ uint32 link = (p0 >> 21) & 0x3FFFF8;
-// if ((vcnt!=507)&&(vcnt!=25))
-// fprintf(log_get(),"\t%i%s%i link=0x%.8x\n",scanline,condition_to_str[cc],vcnt>>1,link);
+// 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))
+ if (TOMReadWord(0xF00006, OP) == ypos || ypos == 0x7FF)
op_pointer = link;
break;
case CONDITION_LESS_THAN:
- if ((2 * tom_get_scanline()) < vcnt)
+ if (TOMReadWord(0xF00006, OP) < ypos)
op_pointer = link;
break;
case CONDITION_GREATER_THAN:
- if ((2 * tom_get_scanline()) > vcnt)
+ if (TOMReadWord(0xF00006, OP) > ypos)
op_pointer = link;
break;
case CONDITION_OP_FLAG_SET:
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");
+ // This basically means branch if bit 10 of HC is set
+ WriteLog("OP: Unexpected CONDITION_SECOND_HALF_LINE in BRANCH object\nOP: shuting down\n");
fclose(log_get());
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));
+//WriteLog("OP: --> STOP\n");
+// op_set_status_register(((p0>>3) & 0xFFFFFFFF));
+//This seems more likely...
+ op_set_current_object(p0);
- if (p0 & 0x8)
+ if (p0 & 0x08)
{
tom_set_pending_object_int();
- if ((tom_irq_enabled(2)) && (jaguar_interrupt_handler_is_valid(64)))
- {
-// s68000interrupt(7,64);
-// s68000flushInterrupts();
+ if (tom_irq_enabled(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;
}
}
}
//
-// Object Processor initialization
+// 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
+
+// int16 scanlineWidth = tom_getVideoModeWidth();
+ uint8 * tom_ram_8 = tom_get_ram_pointer();
+ uint8 * paletteRAM = &tom_ram_8[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;
- for(int i=0; i<256*256; i++)
+//#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(tom_ram_8, 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 = &tom_ram_8[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
{
- 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;
+ // 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;
+ }
+ }
+ }
+ 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;
+ }
+ }
}
- op_reset();
}
//
-// Object Processor reset
+// Store scaled bitmap in line buffer
//
-
-void op_reset(void)
+void OPProcessScaledBitmap(uint64 p0, uint64 p1, uint64 p2, bool render)
{
- memset(objectp_ram, 0x00, 0x40);
- objectp_running = 0;
-}
+// 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
-void op_done(void)
+ uint8 * tom_ram_8 = tom_get_ram_pointer();
+ uint8 * paletteRAM = &tom_ram_8[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;
+// 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!
+ 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(tom_ram_8, 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)
{
-}
+ 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...
+//
+// 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]
+//
+// 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!
-void op_byte_write(uint32 offset, uint8 data)
+//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
{
- offset &= 0x3F;
- objectp_ram[offset] = data;
+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_word_write(uint32 offset, uint16 data)
-{
- offset &= 0x3F;
- objectp_ram[offset] = (data >> 8) & 0xFF;
- objectp_ram[offset+1] = data & 0xFF;
+ if (endPos < 0) // Case #2: Begin in, end out, R to L
+ clippedWidth = 0 - endPos,
+ phraseClippedWidth = clippedWidth / scaledPhrasePixels;
-/*if (offset == 0x20)
-fprintf(log_get(), "OP: Setting lo list pointer: %04X\n", data);
-if (offset == 0x22)
-fprintf(log_get(), "OP: Setting hi list pointer: %04X\n", data);//*/
-}
+ if (endPos > lbufWidth) // Case #3: Begin in, end out, L to R
+ clippedWidth = endPos - lbufWidth,
+ phraseClippedWidth = clippedWidth / scaledPhrasePixels;
-// Memory range: F00010 - F00027
+ if (startPos > lbufWidth) // Case #4: Begin out, end in, R to L
+ clippedWidth = startPos - lbufWidth,
+ dataClippedWidth = phraseClippedWidth = clippedWidth / scaledPhrasePixels,
+ startPos = lbufWidth + (clippedWidth % scaledPhrasePixels);
-uint8 op_byte_read(uint32 offset)
+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)
{
- offset &= 0x3F;
- return objectp_ram[offset];
+ 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 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 = &tom_ram_8[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;
-uint16 op_word_read(uint32 offset)
-{
- return (objectp_ram[offset & 0x3F] << 8) | objectp_ram[(offset+1) & 0x3F];
-}
+ int pixCount = 0;
+ uint64 pixels = ((uint64)JaguarReadLong(data, OP) << 32) | JaguarReadLong(data + 4, OP);
-// 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
+ while ((int32)iwidth > 0)
+ {
+ uint8 bits = pixels >> 63;
-uint32 op_get_list_pointer(void)
-{
- // Note: This register is WORD swapped, hence the funky look of this...
-/* uint32 ptr = objectp_ram[0x22];
- ptr <<= 8;
- ptr |= objectp_ram[0x23];
- ptr <<= 8;
- ptr |= objectp_ram[0x20];
- ptr <<= 8;
- ptr |= objectp_ram[0x21];
-fprintf(log_get(), "OP: Getting list pointer: %08X\n", (unsigned int)ptr);
- ptr &= ~0x07;
-
- return ptr;//*/
- return (objectp_ram[0x22] << 24) | (objectp_ram[0x23] << 16) | (objectp_ram[0x20] << 8) | objectp_ram[0x21];
-}
+ 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]);
+ }
-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;//*/
- return (objectp_ram[0x26] << 24) | (objectp_ram[0x27] << 16) | (objectp_ram[0x28] << 8) | objectp_ram[0x29];
-}
+ currentLineBuffer += lbufDelta;
-void op_set_status_register(uint32 data)
-{
- objectp_ram[0x26] = (data & 0xFF000000) >> 24;
- objectp_ram[0x27] = (data & 0x00FF0000) >> 16;
- objectp_ram[0x28] = (data & 0x0000FF00) >> 8;
- objectp_ram[0x29] |= (data & 0xFE);
-}
+ horizontalRemainder -= 0x20; // Subtract 1.0f in [3.5] fixed point format
+ while (horizontalRemainder & 0x80)
+ {
+ horizontalRemainder += hscale;
+ pixCount++;
+ pixels <<= 1;
+ }
-void op_set_current_object(uint64 object)
-{
-/*
- 32 28 24 20 16 12 8 4 0
- +--------^---------^---------^--------^--------^--------^--------^--------+
-0 | object-data |
- +-------------------------------------------------------------------------+
-
- 64 60 56 52 48 44 40 36 32
- +--------^---------^---------^--------^--------^--------^--------^--------+
-1 | object-data |
- +-------------------------------------------------------------------------+
-*/
- // 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 (pixCount > 63)
+ {
+ int phrasesToSkip = pixCount / 64, pixelShift = pixCount % 64;
- 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;
+ 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;
+ }
+
+ 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;
+ }
+
+ 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;
+
+ horizontalRemainder -= 0x20; // Subtract 1.0f in [3.5] fixed point format
+ while (horizontalRemainder & 0x80)
+ {
+ horizontalRemainder += hscale;
+ pixCount++;
+ pixels <<= 8;
+ }
+
+ 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;
+ }
+
+ 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;
+ }
+ }
+ }
+/*if (depth == 3 && startPos == 13)
+{
+if (op_start_log)
+WriteLog("OP: Writing in the margins...\n");
+ for(int i=0; i<100*2; i+=2)
+// for(int i=0; i<14*2; i+=2)
+ tom_ram_8[0x1800 + i] = 0xFF,
+ tom_ram_8[0x1800 + i + 1] = 0xFF;
+}*/
+// uint32 lbufAddress = 0x1800 + (!in24BPPMode ? startPos * 2 : startPos * 4);
+// uint8 * currentLineBuffer = &tom_ram_8[lbufAddress];
}
projects / virtualjaguar / blobdiff