* The renderer has 4 modes now:\r
* - normal\r
* - shadow/hilight (s/h)\r
- * - "sonic mode" for midline palette changes\r
- * - accurate sprites (AS)\r
+ * - "sonic mode" for midline palette changes (8bit mode only)\r
+ * - accurate sprites (AS) [+ s/h]\r
*\r
* AS and s/h both use upper bits for both priority and shadow/hilight flags.\r
* "sonic mode" is autodetected, shadow/hilight is enabled by emulated game.\r
* AS is enabled by user and takes priority over "sonic mode".\r
+ *\r
+ * since renderer always draws line in 8bit mode, there are 2 spare bits:\r
+ * b \ mode: s/h as sonic\r
+ * 00 normal - -\r
+ * 01 shadow - pal index\r
+ * 10 hilight+op spr spr pal index\r
+ * 11 shadow +op spr - pal index\r
+ *\r
+ * not handled properly:\r
+ * - hilight op on shadow tile\r
+ * - AS + s/h (s/h sprite flag interferes with and cleared by AS code)\r
*/\r
\r
#include "pico_int.h"\r
#else\r
unsigned char HighCol[8+320+8];\r
#endif\r
-unsigned short DefOutBuff[320*2];\r
+static unsigned int DefOutBuff[320*2/2];\r
void *DrawLineDest=DefOutBuff; // pointer to dest buffer where to draw this line to\r
\r
static int HighCacheA[41+1]; // caches for high layers\r
// stuff available in asm:\r
#ifdef _ASM_DRAW_C\r
void DrawWindow(int tstart, int tend, int prio, int sh);\r
-void BackFill(int reg7, int sh);\r
void DrawAllSprites(unsigned char *sprited, int prio, int sh);\r
void DrawTilesFromCache(int *hc, int sh, int rlim);\r
void DrawSpritesSHi(unsigned char *sprited);\r
// draw a sprite pixel, process operator colors\r
#define pix_sh(x) \\r
if (!t); \\r
- else if (t==0xe) pd[x]=(pd[x]&0x3f)|0x80; /* hilight */ \\r
- else if (t==0xf) pd[x]= pd[x] |0xc0; /* shadow */ \\r
+ else if (t>=0xe) pd[x]=(pd[x]&0x3f)|(t<<6); /* c0 shadow, 80 hilight */ \\r
else pd[x]=pal|t\r
\r
TileNormMaker(TileNormSH, pix_sh)\r
TileFlipMaker(TileFlipSH, pix_sh)\r
\r
-// draw a sprite pixel ignoring operator colors\r
-#define pix_sh_noop(x) \\r
- if (t && t < 0xe) \\r
- pd[x]=pal|t\r
+// draw a sprite pixel, mark operator colors\r
+#define pix_sh_markop(x) \\r
+ if (!t); \\r
+ else if (t>=0xe) pd[x]|=0x80; \\r
+ else pd[x]=pal|t\r
\r
-TileNormMaker(TileNormSH_noop, pix_sh_noop)\r
-TileFlipMaker(TileFlipSH_noop, pix_sh_noop)\r
+TileNormMaker(TileNormSH_markop, pix_sh_markop)\r
+TileFlipMaker(TileFlipSH_markop, pix_sh_markop)\r
\r
-// process operator pixels only, apply only on low pri tiles\r
+// process operator pixels only, apply only on low pri tiles and other op pixels\r
#define pix_sh_onlyop(x) \\r
- if (t==0xe && (pd[x]&0x40)) pd[x]=(pd[x]&0x3f)|0x80; /* hilight */ \\r
- else if (t==0xf && (pd[x]&0x40)) pd[x]= pd[x] |0xc0; /* shadow */\r
+ if (t>=0xe && (pd[x]&0xc0)) \\r
+ pd[x]=(pd[x]&0x3f)|(t<<6); /* c0 shadow, 80 hilight */ \\r
\r
TileNormMaker(TileNormSH_onlyop_lp, pix_sh_onlyop)\r
TileFlipMaker(TileFlipSH_onlyop_lp, pix_sh_onlyop)\r
\r
if (prio) {\r
int *zb = (int *)(HighCol+8+(tilex<<3));\r
- *zb++ &= 0x3f3f3f3f;\r
- *zb &= 0x3f3f3f3f;\r
+ *zb++ &= 0xbfbfbfbf;\r
+ *zb &= 0xbfbfbfbf;\r
} else {\r
pal |= 0x40;\r
}\r
static void DrawTilesFromCacheShPrep(void)\r
{\r
// as some layer has covered whole line with hi priority tiles,\r
- // we can process whole line and then act as if sh/hi mode was off.\r
+ // we can process whole line and then act as if sh/hi mode was off,\r
+ // but leave lo pri op sprite markers alone\r
int c = 320/4, *zb = (int *)(HighCol+8);\r
rendstatus |= PDRAW_SHHI_DONE;\r
while (c--)\r
{\r
- *zb++ &= 0x3f3f3f3f;\r
+ *zb++ &= 0xbfbfbfbf;\r
}\r
}\r
\r
addr+=(unsigned int)code>>25; // y offset into tile\r
dx=(code>>16)&0x1ff;\r
zb = HighCol+dx;\r
- *zb++ &= 0x3f; *zb++ &= 0x3f; *zb++ &= 0x3f; *zb++ &= 0x3f;\r
- *zb++ &= 0x3f; *zb++ &= 0x3f; *zb++ &= 0x3f; *zb++ &= 0x3f;\r
+ *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf;\r
+ *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf;\r
\r
pal=((code>>9)&0x30);\r
if (rlim-dx < 0) goto last_cut_tile;\r
pal|=sh<<6;\r
\r
if (sh && (code&0x6000) == 0x6000) {\r
- if(code&0x0800) fTileFunc=TileFlipSH_noop;\r
- else fTileFunc=TileNormSH_noop;\r
+ if(code&0x0800) fTileFunc=TileFlipSH_markop;\r
+ else fTileFunc=TileNormSH_markop;\r
} else {\r
if(code&0x0800) fTileFunc=TileFlip;\r
else fTileFunc=TileNorm;\r
\r
\r
#ifndef _ASM_DRAW_C\r
-// Index + 0 : hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: vert./horiz. size\r
-// Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r
+/*\r
+ * s/h drawing: lo_layers|40, lo_sprites|40 && mark_op,\r
+ * hi_layers&=~40, hi_sprites\r
+ *\r
+ * Index + 0 : hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: vert./horiz. size\r
+ * Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r
+ */\r
static void DrawSpritesSHi(unsigned char *sprited)\r
{\r
int (*fTileFunc)(int sx,int addr,int pal);\r
\r
/* nasty 1: remove 'sprite' flags */\r
{\r
- int c = 320/4, *zb = (int *)(HighCol+8);\r
+ int c = 320/4/4, *zb = (int *)(HighCol+8);\r
while (c--)\r
{\r
- *zb++ &= 0x7f7f7f7f;\r
+ *zb++ &= 0x7f7f7f7f; *zb++ &= 0x7f7f7f7f;\r
+ *zb++ &= 0x7f7f7f7f; *zb++ &= 0x7f7f7f7f;\r
}\r
}\r
\r
\r
// --------------------------------------------\r
\r
-static void BackFill(int reg7, int sh)\r
+void BackFill(int reg7, int sh)\r
{\r
unsigned int back;\r
\r
int len, rs = rendstatus;\r
static int dirty_count;\r
\r
- if (!sh && Pico.m.dirtyPal == 1 && DrawScanline < 222)\r
+ if (!sh && Pico.m.dirtyPal == 1)\r
{\r
// a hack for mid-frame palette changes\r
if (!(rs & PDRAW_SONIC_MODE))\r
}\r
}\r
\r
-static void (*FinalizeLine)(int sh) = FinalizeLineBGR444;\r
+static void (*FinalizeLine)(int sh);\r
\r
// --------------------------------------------\r
\r
-static void DrawBlankedLine(void)\r
-{\r
- int sh=(Pico.video.reg[0xC]&8)>>3; // shadow/hilight?\r
-\r
- if (PicoScanBegin != NULL)\r
- PicoScanBegin(DrawScanline);\r
-\r
- BackFill(Pico.video.reg[7], sh);\r
-\r
- if (FinalizeLine != NULL)\r
- FinalizeLine(sh);\r
-\r
- if (PicoScanEnd != NULL)\r
- PicoScanEnd(DrawScanline);\r
-}\r
-\r
static int DrawDisplay(int sh)\r
{\r
unsigned char *sprited = &HighLnSpr[DrawScanline][0];\r
rendstatus = 0;\r
if ((Pico.video.reg[12]&6) == 6)\r
rendstatus |= PDRAW_INTERLACE; // interlace mode\r
+ if (Pico.video.reg[1] & 8)\r
+ rendstatus |= PDRAW_240LINES;\r
\r
- if (Pico.m.dirtyPal) Pico.m.dirtyPal = 2; // reset dirty if needed\r
+ if (Pico.m.dirtyPal)\r
+ Pico.m.dirtyPal = 2; // reset dirty if needed\r
\r
DrawScanline=0;\r
PrepareSprites(1);\r
skip_next_line=0;\r
}\r
\r
-static void PicoLine(void)\r
+static void DrawBlankedLine(int line, int offs)\r
+{\r
+ int sh = (Pico.video.reg[0xC]&8)>>3; // shadow/hilight?\r
+\r
+ if (PicoScanBegin != NULL)\r
+ PicoScanBegin(line + offs);\r
+\r
+ BackFill(Pico.video.reg[7], sh);\r
+\r
+ if (FinalizeLine != NULL)\r
+ FinalizeLine(sh);\r
+\r
+ if (PicoScanEnd != NULL)\r
+ PicoScanEnd(line + offs);\r
+}\r
+\r
+static void PicoLine(int line, int offs)\r
{\r
int sh;\r
- if (skip_next_line>0) { skip_next_line--; return; } // skip rendering lines\r
+ if (skip_next_line > 0) {\r
+ skip_next_line--;\r
+ return;\r
+ }\r
\r
sh=(Pico.video.reg[0xC]&8)>>3; // shadow/hilight?\r
\r
+ DrawScanline = line;\r
if (PicoScanBegin != NULL)\r
- skip_next_line = PicoScanBegin(DrawScanline);\r
+ skip_next_line = PicoScanBegin(line + offs);\r
\r
// Draw screen:\r
BackFill(Pico.video.reg[7], sh);\r
FinalizeLine(sh);\r
\r
if (PicoScanEnd != NULL)\r
- skip_next_line = PicoScanEnd(DrawScanline);\r
+ skip_next_line = PicoScanEnd(line + offs);\r
}\r
\r
void PicoDrawSync(int to, int blank_last_line)\r
{\r
- for (; DrawScanline < to; DrawScanline++)\r
+ int line, offs = 0;\r
+\r
+ if (!(rendstatus & PDRAW_240LINES))\r
+ offs = 8;\r
+\r
+ for (line = DrawScanline; line < to; line++)\r
{\r
#if !CAN_HANDLE_240_LINES\r
- if (DrawScanline >= 224) break;\r
+ if (line >= 224) break;\r
#endif\r
- PicoLine();\r
+ PicoLine(line, offs);\r
}\r
\r
#if !CAN_HANDLE_240_LINES\r
- if (DrawScanline >= 224) { DrawScanline = 240; return; }\r
+ if (line >= 224) {\r
+ DrawScanline = 240;\r
+ return;\r
+ }\r
#endif\r
\r
// last line\r
- if (DrawScanline <= to)\r
+ if (line <= to)\r
{\r
if (blank_last_line)\r
- DrawBlankedLine();\r
- else PicoLine();\r
- DrawScanline++;\r
+ DrawBlankedLine(line, offs);\r
+ else PicoLine(line, offs);\r
+ line++;\r
}\r
+ DrawScanline = line;\r
}\r
\r
void PicoDrawSetColorFormat(int which)\r
case 0: FinalizeLine = FinalizeLineBGR444; break;\r
default:FinalizeLine = NULL; break;\r
}\r
+ PicoDrawSetColorFormatMode4(which);\r
#if OVERRIDE_HIGHCOL\r
- if (which) HighCol=DefHighCol;\r
+ if (which)\r
+ HighCol=DefHighCol;\r
#endif\r
}\r
\r
notaz.gp2x.de / picodrive.git / blobdiff