From: notaz <notasas@gmail.com>
Date: Sun, 6 Aug 2017 16:23:20 +0000 (+0300)
Subject: eliminate texrels (wip2)
X-Git-Tag: v1.92~57
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=99bdfd31b8708f8059fbc16ec8be90cb8d7c8bc3;p=picodrive.git

eliminate texrels (wip2)
---

diff --git a/pico/32x/draw.c b/pico/32x/draw.c
index 9500e088..e20238e4 100644
--- a/pico/32x/draw.c
+++ b/pico/32x/draw.c
@@ -85,9 +85,9 @@ static void convert_pal555(int invert_prio)
 // this is almost never used (Wiz and menu bg gen only)
 void FinalizeLine32xRGB555(int sh, int line, struct PicoEState *est)
 {
-  unsigned short *pd = DrawLineDest;
+  unsigned short *pd = est->DrawLineDest;
   unsigned short *pal = Pico32xMem->pal_native;
-  unsigned char  *pmd = HighCol + 8;
+  unsigned char  *pmd = est->HighCol + 8;
   unsigned short *dram, *p32x;
   unsigned char   mdbg;
 
@@ -130,7 +130,7 @@ void FinalizeLine32xRGB555(int sh, int line, struct PicoEState *est)
 
 #define PICOSCAN_PRE \
   PicoScan32xBegin(l + (lines_sft_offs & 0xff)); \
-  dst = DrawLineDest; \
+  dst = Pico.est.DrawLineDest; \
 
 #define PICOSCAN_POST \
   PicoScan32xEnd(l + (lines_sft_offs & 0xff)); \
@@ -228,7 +228,7 @@ void PicoDraw32xLayer(int offs, int lines, int md_bg)
   int lines_sft_offs;
   int which_func;
 
-  DrawLineDest = (char *)DrawLineDestBase + offs * DrawLineDestIncrement;
+  Pico.est.DrawLineDest = (char *)DrawLineDestBase + offs * DrawLineDestIncrement;
   dram = Pico32xMem->dram[Pico32x.vdp_regs[0x0a/2] & P32XV_FS];
 
   if (Pico32xDrawMode == PDM32X_BOTH) {
@@ -266,7 +266,7 @@ do_it:
   if (Pico32x.vdp_regs[2 / 2] & P32XV_SFT)
     lines_sft_offs |= 1 << 8;
 
-  do_loop[which_func](DrawLineDest, dram, lines_sft_offs, md_bg);
+  do_loop[which_func](Pico.est.DrawLineDest, dram, lines_sft_offs, md_bg);
 }
 
 // mostly unused, games tend to keep 32X layer on
@@ -292,7 +292,7 @@ void PicoDraw32xLayerMdOnly(int offs, int lines)
   for (l = 0; l < lines; l++) {
     if (have_scan) {
       PicoScan32xBegin(l + offs);
-      dst = DrawLineDest + poffs;
+      dst = Pico.est.DrawLineDest + poffs;
     }
     for (p = 0; p < plen; p += 4) {
       dst[p + 0] = pal[*pmd++];
diff --git a/pico/debug.c b/pico/debug.c
index 91bff566..7cc3c325 100644
--- a/pico/debug.c
+++ b/pico/debug.c
@@ -20,13 +20,12 @@ char *PDebugMain(void)
 {
   struct PicoVideo *pv=&Pico.video;
   unsigned char *reg=pv->reg, r;
-  extern int HighPreSpr[];
   int i, sprites_lo, sprites_hi;
   char *dstrp;
 
   sprites_lo = sprites_hi = 0;
-  for (i = 0; HighPreSpr[i] != 0; i+=2)
-    if (HighPreSpr[i+1] & 0x8000)
+  for (i = 0; Pico.est.HighPreSpr[i] != 0; i+=2)
+    if (Pico.est.HighPreSpr[i+1] & 0x8000)
          sprites_hi++;
     else sprites_lo++;
 
diff --git a/pico/draw.c b/pico/draw.c
index ff84be57..7dbdc34e 100644
--- a/pico/draw.c
+++ b/pico/draw.c
@@ -35,18 +35,16 @@ int (*PicoScanBegin)(unsigned int num) = NULL;
 int (*PicoScanEnd)  (unsigned int num) = NULL;
 
 static unsigned char DefHighCol[8+320+8];
-unsigned char *HighCol = DefHighCol;
 static unsigned char *HighColBase = DefHighCol;
 static int HighColIncrement;
 
 static unsigned int DefOutBuff[320*2/2];
-void *DrawLineDest = DefOutBuff; // pointer to dest buffer where to draw this line to
 void *DrawLineDestBase = DefOutBuff;
 int DrawLineDestIncrement;
 
 static int  HighCacheA[41+1];   // caches for high layers
 static int  HighCacheB[41+1];
-int  HighPreSpr[80*2+1]; // slightly preprocessed sprites
+static int  HighPreSpr[80*2+1]; // slightly preprocessed sprites
 
 #define SPRL_HAVE_HI     0x80 // have hi priority sprites
 #define SPRL_HAVE_LO     0x40 // *lo*
@@ -100,7 +98,7 @@ void blockcpy_or(void *dst, void *src, size_t n, int pat)
 #define TileNormMaker(funcname,pix_func)                     \
 static int funcname(int sx,int addr,int pal)                 \
 {                                                            \
-  unsigned char *pd = HighCol+sx;                            \
+  unsigned char *pd = Pico.est.HighCol+sx;                   \
   unsigned int pack=0; unsigned int t=0;                     \
                                                              \
   pack=*(unsigned int *)(Pico.vram+addr); /* Get 8 pixels */ \
@@ -124,7 +122,7 @@ static int funcname(int sx,int addr,int pal)                 \
 #define TileFlipMaker(funcname,pix_func)                     \
 static int funcname(int sx,int addr,int pal)                 \
 {                                                            \
-  unsigned char *pd = HighCol+sx;                            \
+  unsigned char *pd = Pico.est.HighCol+sx;                   \
   unsigned int pack=0; unsigned int t=0;                     \
                                                              \
   pack=*(unsigned int *)(Pico.vram+addr); /* Get 8 pixels */ \
@@ -515,7 +513,7 @@ static void DrawWindow(int tstart, int tend, int prio, int sh,
       pal=((code>>9)&0x30);
 
       if (prio) {
-        int *zb = (int *)(HighCol+8+(tilex<<3));
+        int *zb = (int *)(est->HighCol+8+(tilex<<3));
         *zb++ &= 0xbfbfbfbf;
         *zb   &= 0xbfbfbfbf;
       } else {
@@ -541,7 +539,7 @@ static void DrawTilesFromCacheShPrep(void)
   // as some layer has covered whole line with hi priority tiles,
   // we can process whole line and then act as if sh/hi mode was off,
   // but leave lo pri op sprite markers alone
-  int c = 320/4, *zb = (int *)(HighCol+8);
+  int c = 320/4, *zb = (int *)(Pico.est.HighCol+8);
   Pico.est.rendstatus |= PDRAW_SHHI_DONE;
   while (c--)
   {
@@ -591,7 +589,7 @@ static void DrawTilesFromCache(int *hc, int sh, int rlim, struct PicoEState *est
       addr=(code&0x7ff)<<4;
       addr+=(unsigned int)code>>25; // y offset into tile
       dx=(code>>16)&0x1ff;
-      zb = HighCol+dx;
+      zb = est->HighCol+dx;
       *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf;
       *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf;
 
@@ -607,7 +605,7 @@ static void DrawTilesFromCache(int *hc, int sh, int rlim, struct PicoEState *est
 last_cut_tile:
   {
     unsigned int t, pack=*(unsigned int *)(Pico.vram+addr); // Get 8 pixels
-    unsigned char *pd = HighCol+dx;
+    unsigned char *pd = est->HighCol+dx;
     if (!pack) return;
     if (code&0x0800)
     {
@@ -812,7 +810,7 @@ static void DrawSpritesSHi(unsigned char *sprited, const struct PicoEState *est)
     int offs, delta, width, height, row;
 
     offs = (p[cnt] & 0x7f) * 2;
-    sprite = HighPreSpr + offs;
+    sprite = est->HighPreSpr + offs;
     code = sprite[1];
     pal = (code>>9)&0x30;
 
@@ -936,7 +934,7 @@ static void DrawSpritesHiAS(unsigned char *sprited, int sh)
 
   /* nasty 1: remove 'sprite' flags */
   {
-    int c = 320/4/4, *zb = (int *)(HighCol+8);
+    int c = 320/4/4, *zb = (int *)(Pico.est.HighCol+8);
     while (c--)
     {
       *zb++ &= 0x7f7f7f7f; *zb++ &= 0x7f7f7f7f;
@@ -1147,7 +1145,7 @@ static void DrawAllSprites(unsigned char *sprited, int prio, int sh,
 
 // --------------------------------------------
 
-void BackFill(int reg7, int sh)
+void BackFill(int reg7, int sh, struct PicoEState *est)
 {
   unsigned int back;
 
@@ -1157,7 +1155,7 @@ void BackFill(int reg7, int sh)
   back|=back<<8;
   back|=back<<16;
 
-  memset32((int *)(HighCol+8), back, 320/4);
+  memset32((int *)(est->HighCol+8), back, 320/4);
 }
 #endif
 
@@ -1204,10 +1202,10 @@ void PicoDoHighPal555(int sh, int line, struct PicoEState *est)
   }
 }
 
-void FinalizeLine555(int sh, int line)
+void FinalizeLine555(int sh, int line, struct PicoEState *est)
 {
-  unsigned short *pd=DrawLineDest;
-  unsigned char  *ps=HighCol+8;
+  unsigned short *pd=est->DrawLineDest;
+  unsigned char  *ps=est->HighCol+8;
   unsigned short *pal=HighPal;
   int len;
 
@@ -1242,7 +1240,7 @@ void FinalizeLine555(int sh, int line)
 
 static void FinalizeLine8bit(int sh, int line, struct PicoEState *est)
 {
-  unsigned char *pd = DrawLineDest;
+  unsigned char *pd = est->DrawLineDest;
   int len, rs = est->rendstatus;
   static int dirty_count;
 
@@ -1271,12 +1269,12 @@ static void FinalizeLine8bit(int sh, int line, struct PicoEState *est)
 
   if (!sh && (rs & PDRAW_SONIC_MODE)) {
     if (dirty_count >= 11) {
-      blockcpy_or(pd, HighCol+8, len, 0x80);
+      blockcpy_or(pd, est->HighCol+8, len, 0x80);
     } else {
-      blockcpy_or(pd, HighCol+8, len, 0x40);
+      blockcpy_or(pd, est->HighCol+8, len, 0x40);
     }
   } else {
-    blockcpy(pd, HighCol+8, len);
+    blockcpy(pd, est->HighCol+8, len);
   }
 }
 
@@ -1403,8 +1401,8 @@ PICO_INTERNAL void PicoFrameStart(void)
     rendstatus_old = Pico.est.rendstatus;
   }
 
-  HighCol = HighColBase + offs * HighColIncrement;
-  DrawLineDest = (char *)DrawLineDestBase + offs * DrawLineDestIncrement;
+  Pico.est.HighCol = HighColBase + offs * HighColIncrement;
+  Pico.est.DrawLineDest = (char *)DrawLineDestBase + offs * DrawLineDestIncrement;
   Pico.est.DrawScanline = 0;
   skip_next_line = 0;
 
@@ -1421,7 +1419,7 @@ static void DrawBlankedLine(int line, int offs, int sh, int bgc)
   if (PicoScanBegin != NULL)
     PicoScanBegin(line + offs);
 
-  BackFill(bgc, sh);
+  BackFill(bgc, sh, &Pico.est);
 
   if (FinalizeLine != NULL)
     FinalizeLine(sh, line, &Pico.est);
@@ -1429,8 +1427,8 @@ static void DrawBlankedLine(int line, int offs, int sh, int bgc)
   if (PicoScanEnd != NULL)
     PicoScanEnd(line + offs);
 
-  HighCol += HighColIncrement;
-  DrawLineDest = (char *)DrawLineDest + DrawLineDestIncrement;
+  Pico.est.HighCol += HighColIncrement;
+  Pico.est.DrawLineDest = (char *)Pico.est.DrawLineDest + DrawLineDestIncrement;
 }
 
 static void PicoLine(int line, int offs, int sh, int bgc)
@@ -1452,7 +1450,7 @@ static void PicoLine(int line, int offs, int sh, int bgc)
   }
 
   // Draw screen:
-  BackFill(bgc, sh);
+  BackFill(bgc, sh, &Pico.est);
   if (Pico.video.reg[1]&0x40)
     DrawDisplay(sh);
 
@@ -1462,8 +1460,8 @@ static void PicoLine(int line, int offs, int sh, int bgc)
   if (PicoScanEnd != NULL)
     skip_next_line = PicoScanEnd(line + offs);
 
-  HighCol += HighColIncrement;
-  DrawLineDest = (char *)DrawLineDest + DrawLineDestIncrement;
+  Pico.est.HighCol += HighColIncrement;
+  Pico.est.DrawLineDest = (char *)Pico.est.DrawLineDest + DrawLineDestIncrement;
 }
 
 void PicoDrawSync(int to, int blank_last_line)
@@ -1539,7 +1537,7 @@ void PicoDrawSetOutBuf(void *dest, int increment)
 {
   DrawLineDestBase = dest;
   DrawLineDestIncrement = increment;
-  DrawLineDest = DrawLineDestBase + Pico.est.DrawScanline * increment;
+  Pico.est.DrawLineDest = DrawLineDestBase + Pico.est.DrawScanline * increment;
 }
 
 void PicoDrawSetInternalBuf(void *dest, int increment)
@@ -1547,7 +1545,7 @@ void PicoDrawSetInternalBuf(void *dest, int increment)
   if (dest != NULL) {
     HighColBase = dest;
     HighColIncrement = increment;
-    HighCol = HighColBase + Pico.est.DrawScanline * increment;
+    Pico.est.HighCol = HighColBase + Pico.est.DrawScanline * increment;
   }
   else {
     HighColBase = DefHighCol;
@@ -1572,4 +1570,12 @@ void PicoDrawSetCallbacks(int (*begin)(unsigned int num), int (*end)(unsigned in
   }
 }
 
-// vim:ts=4:sw=4:expandtab
+void PicoDrawInit(void)
+{
+  Pico.est.DrawLineDest = DefOutBuff;
+  Pico.est.HighCol = HighColBase;
+  Pico.est.HighPreSpr = HighPreSpr;
+  rendstatus_old = -1;
+}
+
+// vim:ts=2:sw=2:expandtab
diff --git a/pico/draw_arm.S b/pico/draw_arm.S
index 2c1db104..23c522b0 100644
--- a/pico/draw_arm.S
+++ b/pico/draw_arm.S
@@ -10,15 +10,7 @@
 
 #include "pico_int_o32.h"
 
-.extern PicoOpt
-.extern HighCol
-.extern HighSprZ
-.extern HighPreSpr
-.extern DrawLineDest
 .extern DrawStripInterlace
-.extern HighCacheS_ptr
-
-.equiv OVERRIDE_HIGHCOL,  1
 
 .equ PDRAW_SPRITES_MOVED, (1<<0)
 .equ PDRAW_WND_DIFF_PRIO, (1<<1)
@@ -395,17 +387,12 @@ DrawLayer:
     sub     r10,r10,r9, lsl #16  @ cells-=cellskip
 
     @ cache some stuff to avoid mem access
-.if OVERRIDE_HIGHCOL
-    ldr     r11,=HighCol
-    mov     r0, #0xf
-    ldr     r11,[r11]
-.else
-    ldr     r11,=HighCol
+    ldr     r11,[sp, #9*4]       @ est
     mov     r0, #0xf
-.endif
+    ldr     r11,[r11, #OFS_HighCol]
 
     mvn     r9, #0               @ r9=prevcode=-1
-    add     r1, r11, r7         @ r1=pdest
+    add     r1, r11, r7          @ r1=pdest
 
 
     @ r4 & r7 are scratch in this loop
@@ -548,14 +535,9 @@ DrawLayer:
     add     r10,r10,r9, lsl #16  @ cell+=cellskip
 
     @ cache some stuff to avoid mem access
-.if OVERRIDE_HIGHCOL
-    ldr     r11,=HighCol
-    mov     r0, #0xf
-    ldr     r11,[r11]
-.else
-    ldr     r11,=HighCol
+    ldr     r11,[sp, #9*4]       @ est
     mov     r0, #0xf
-.endif
+    ldr     r11,[r11, #OFS_HighCol]
 
     mvn     r9, #0               @ r9=prevcode=-1
     add     r1, r11, r7          @ r1=pdest
@@ -722,23 +704,17 @@ DrawLayer:
 
 @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 
+@ void BackFill(int reg7, int sh, struct PicoEState *est)
 
-.global BackFill @ int reg7, int sh
+.global BackFill
 
 BackFill:
     stmfd   sp!, {r4-r9,lr}
 
-.if OVERRIDE_HIGHCOL
-    ldr     lr, =HighCol
     mov     r0, r0, lsl #26
-    ldr     lr, [lr]
+    ldr     lr, [r2, #OFS_HighCol]
     mov     r0, r0, lsr #26
     add     lr, lr, #8
-.else
-    ldr     lr, =(HighCol+8)
-    mov     r0, r0, lsl #26
-    mov     r0, r0, lsr #26
-.endif
 
     orr     r0, r0, r1, lsl #6
     orr     r0, r0, r0, lsl #8
@@ -764,8 +740,8 @@ BackFill:
     stmia   lr!, {r0-r7}
     stmia   lr!, {r0-r7}
 
-    ldmfd   sp!, {r4-r9,r12}
-    bx      r12
+    ldmfd   sp!, {r4-r9,lr}
+    bx      lr
 
 
 @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@ -778,14 +754,8 @@ DrawTilesFromCache:
     stmfd   sp!, {r4-r9,r11,lr}
 
     @ cache some stuff to avoid mem access
-.if OVERRIDE_HIGHCOL
-    ldr     r11,=HighCol
+    ldr     r11,[r3, #OFS_HighCol]
     mov     r12,#0xf
-    ldr     r11,[r11]
-.else
-    ldr     r11,=HighCol
-    mov     r12,#0xf
-.endif
     ldr     lr, [r3, #OFS_Pico_vram]
     mov     r9, r3         @ est
 
@@ -964,14 +934,8 @@ DrawSpritesSHi:
     add     r10,r0, #3      @ r10=HighLnSpr end
     add     r10,r10,r3      @ r10=HighLnSpr end
 
-.if OVERRIDE_HIGHCOL
-    ldr     r11,=HighCol
-    mov     r12,#0xf
-    ldr     r11,[r11]
-.else
-    ldr     r11,=HighCol
+    ldr     r11,[r1, #OFS_HighCol]
     mov     r12,#0xf
-.endif
     ldr     lr, [r1, #OFS_Pico_vram]
 
 
@@ -979,7 +943,7 @@ DrawSpriteSHi:
     @ draw next sprite
     ldrb    r0, [r10,#-1]!
     ldr     r7, [sp]        @ est
-    ldr     r1, =HighPreSpr
+    ldr     r1, [r7, #OFS_HighPreSpr]
     cmp     r0, #0xff
     ldmeqfd sp!, {r1,r4-r11,pc} @ end of list
     and     r0, r0, #0x7f
@@ -1159,14 +1123,8 @@ das_no_prep:
     add     r10,r0, #3
     add     r10,r10,r2      @ r10=HighLnSpr end
 
-.if OVERRIDE_HIGHCOL
-    ldr     r11,=HighCol
-    mov     r12,#0xf
-    ldr     r11,[r11]
-.else
-    ldr     r11,=HighCol
+    ldr     r11,[r3, #OFS_HighCol]
     mov     r12,#0xf
-.endif
     ldr     lr, [r3, #OFS_Pico_vram]
 
 @ + 0  :    hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: horiz. size
@@ -1182,7 +1140,7 @@ DrawSprite:
     ldmeqfd sp!, {r1,r3-r11,pc} @ end of list
     cmp     r2, r8, lsr #1
     bne     DrawSprite      @ wrong priority
-    ldr     r1, =HighPreSpr
+    ldr     r1, [r7, #OFS_HighPreSpr]
     and     r0, r0, #0x7f
     add     r0, r1, r0, lsl #3
 
@@ -1352,17 +1310,10 @@ DrawWindow:
     sub     r8, r1, r0
 
     @ cache some stuff to avoid mem access
-.if OVERRIDE_HIGHCOL
-    ldr     r11,=HighCol
+    ldr     r11, [r11, #OFS_HighCol]
     mov     r8, r8, lsl #1        @ cells
-    ldr     r11,[r11]
-    mvn     r9, #0                @ r9=prevcode=-1
     add     r11,r11,#8
-.else
-    ldr     r11,=(HighCol+8)
-    mov     r8, r8, lsl #1        @ cells
     mvn     r9, #0                @ r9=prevcode=-1
-.endif
     add     r1, r11, r0, lsl #4   @ r1=pdest
     mov     r0, #0xf
     b       .dwloop_enter
@@ -1632,17 +1583,9 @@ FinalizeLineRGB555_pal_done:
     tstne   r12,#PDRAW_ACC_SPRITES
     movne   lr, #0x3f
 
-.if OVERRIDE_HIGHCOL
-    ldr     r1, =HighCol
-    ldr     r0, =DrawLineDest
-    ldr     r1, [r1]
-    ldr     r0, [r0]
+    ldr     r1, [r10, #OFS_HighCol]
+    ldr     r0, [r10, #OFS_DrawLineDest]
     add     r1, r1, #8
-.else
-    ldr     r0, =DrawLineDest
-    ldr     r1, =(HighCol+8)
-    ldr     r0, [r0]
-.endif
 
     ldrb    r12, [r8, #12]
     mov     lr, lr, lsl #1
@@ -1650,7 +1593,7 @@ FinalizeLineRGB555_pal_done:
     tst     r12, #1
     movne   r2, #320/8           @ len
     bne     .fl_no32colRGB555
-    ldr     r4, =PicoOpt
+    ldr     r4, [r10, #OFS_PicoOpt]
     mov     r2, #256/8
     ldr     r4, [r4]
     tst     r4, #0x4000
diff --git a/pico/mode4.c b/pico/mode4.c
index c945f6fe..1f9adff5 100644
--- a/pico/mode4.c
+++ b/pico/mode4.c
@@ -28,7 +28,7 @@ static int screen_offset;
 
 static int TileNormM4(int sx, int addr, int pal)
 {
-  unsigned char *pd = HighCol + sx;
+  unsigned char *pd = Pico.est.HighCol + sx;
   unsigned int pack, t;
 
   pack = *(unsigned int *)(Pico.vram + addr); /* Get 4 bitplanes / 8 pixels */
@@ -50,7 +50,7 @@ static int TileNormM4(int sx, int addr, int pal)
 
 static int TileFlipM4(int sx,int addr,int pal)
 {
-  unsigned char *pd = HighCol + sx;
+  unsigned char *pd = Pico.est.HighCol + sx;
   unsigned int pack, t;
 
   pack = *(unsigned int *)(Pico.vram + addr); /* Get 4 bitplanes / 8 pixels */
@@ -192,7 +192,7 @@ static void DrawDisplayM4(int scanline)
 
   if (pv->reg[0] & 0x20)
     // first column masked
-    ((int *)HighCol)[2] = ((int *)HighCol)[3] = 0xe0e0e0e0;
+    ((int *)Pico.est.HighCol)[2] = ((int *)Pico.est.HighCol)[3] = 0xe0e0e0e0;
 }
 
 void PicoFrameStartMode4(void)
@@ -219,7 +219,7 @@ void PicoFrameStartMode4(void)
     rendlines = lines;
   }
 
-  DrawLineDest = (char *)DrawLineDestBase + screen_offset * DrawLineDestIncrement;
+  Pico.est.DrawLineDest = (char *)DrawLineDestBase + screen_offset * DrawLineDestIncrement;
 }
 
 void PicoLineMode4(int line)
@@ -233,7 +233,7 @@ void PicoLineMode4(int line)
     skip_next_line = PicoScanBegin(line + screen_offset);
 
   // Draw screen:
-  BackFill(Pico.video.reg[7] & 0x0f, 0);
+  BackFill(Pico.video.reg[7] & 0x0f, 0, &Pico.est);
   if (Pico.video.reg[1] & 0x40)
     DrawDisplayM4(line);
 
@@ -243,7 +243,7 @@ void PicoLineMode4(int line)
   if (PicoScanEnd != NULL)
     skip_next_line = PicoScanEnd(line + screen_offset);
 
-  DrawLineDest = (char *)DrawLineDest + DrawLineDestIncrement;
+  Pico.est.DrawLineDest = (char *)Pico.est.DrawLineDest + DrawLineDestIncrement;
 }
 
 void PicoDoHighPal555M4(void)
@@ -282,12 +282,12 @@ static void FinalizeLineRGB555M4(int line)
 
 static void FinalizeLine8bitM4(int line)
 {
-  unsigned char *pd = DrawLineDest;
+  unsigned char *pd = Pico.est.DrawLineDest;
 
   if (!(PicoOpt & POPT_DIS_32C_BORDER))
     pd += 32;
 
-  memcpy32((int *)pd, (int *)(HighCol+8), 256/4);
+  memcpy32((int *)pd, (int *)(Pico.est.HighCol+8), 256/4);
 }
 
 void PicoDrawSetOutputMode4(pdso_t which)
diff --git a/pico/pico.c b/pico/pico.c
index 1c58f227..4b05d6e0 100644
--- a/pico/pico.c
+++ b/pico/pico.c
@@ -38,6 +38,7 @@ void PicoInit(void)
 
   Pico.est.Pico_video = &Pico.video;
   Pico.est.Pico_vram = Pico.vram;
+  Pico.est.PicoOpt = &PicoOpt;
 
   // Init CPUs:
   SekInit();
@@ -46,6 +47,8 @@ void PicoInit(void)
   PicoInitMCD();
   PicoSVPInit();
   Pico32xInit();
+
+  PicoDrawInit();
 }
 
 // to be called once on emu exit
diff --git a/pico/pico.h b/pico/pico.h
index c033c2da..6eb1dc0d 100644
--- a/pico/pico.h
+++ b/pico/pico.h
@@ -171,8 +171,6 @@ typedef enum
 void PicoDrawSetOutFormat(pdso_t which, int use_32x_line_mode);
 void PicoDrawSetOutBuf(void *dest, int increment);
 void PicoDrawSetCallbacks(int (*begin)(unsigned int num), int (*end)(unsigned int num));
-extern void *DrawLineDest;
-extern unsigned char *HighCol;
 // utility
 #ifdef _ASM_DRAW_C
 void vidConvCpyRGB565(void *to, void *from, int pixels);
diff --git a/pico/pico_int.h b/pico/pico_int.h
index da49e04b..4dbfa659 100644
--- a/pico/pico_int.h
+++ b/pico/pico_int.h
@@ -333,8 +333,12 @@ struct PicoEState
 {
   int DrawScanline;
   int rendstatus;
+  void *DrawLineDest;          // draw estination
+  unsigned char *HighCol;
+  int *HighPreSpr;
   void *Pico_video;
   void *Pico_vram;
+  int  *PicoOpt;
 };
 
 // some assembly stuff depend on these, do not touch!
@@ -584,9 +588,10 @@ extern void (*PicoCartUnloadHook)(void);
 int CM_compareRun(int cyc, int is_sub);
 
 // draw.c
+void PicoDrawInit(void);
 PICO_INTERNAL void PicoFrameStart(void);
 void PicoDrawSync(int to, int blank_last_line);
-void BackFill(int reg7, int sh);
+void BackFill(int reg7, int sh, struct PicoEState *est);
 void FinalizeLine555(int sh, int line, struct PicoEState *est);
 extern int (*PicoScanBegin)(unsigned int num);
 extern int (*PicoScanEnd)(unsigned int num);
diff --git a/pico/pico_int_o32.h b/pico/pico_int_o32.h
index 1cdc6b58..4094697d 100644
--- a/pico/pico_int_o32.h
+++ b/pico/pico_int_o32.h
@@ -1,5 +1,9 @@
 /* autogenerated by ./tools/mkoffsets, do not edit */
 #define OFS_DrawScanline     0x00
 #define OFS_rendstatus       0x04
-#define OFS_Pico_video       0x08
-#define OFS_Pico_vram        0x0c
+#define OFS_DrawLineDest     0x08
+#define OFS_HighCol          0x0c
+#define OFS_HighPreSpr       0x10
+#define OFS_Pico_video       0x14
+#define OFS_Pico_vram        0x18
+#define OFS_PicoOpt          0x1c
diff --git a/platform/gizmondo/emu.c b/platform/gizmondo/emu.c
index 3115ebd3..3a6c861b 100644
--- a/platform/gizmondo/emu.c
+++ b/platform/gizmondo/emu.c
@@ -94,7 +94,7 @@ void pemu_prep_defconfig(void)
 
 static int EmuScanBegin16(unsigned int num)
 {
-	DrawLineDest = (unsigned short *) giz_screen + 321 * num;
+	Pico.est.DrawLineDest = (unsigned short *) giz_screen + 321 * num;
 
 	if ((currentConfig.EmuOpt&0x4000) && (num&1) == 0) // (Pico.m.frame_count&1))
 		return 1; // skip next line
@@ -105,7 +105,7 @@ static int EmuScanBegin16(unsigned int num)
 static int EmuScanBegin8(unsigned int num)
 {
 	// draw like the fast renderer
-	HighCol = gfx_buffer + 328 * num;
+	Pico.est.HighCol = gfx_buffer + 328 * num;
 
 	return 0;
 }
@@ -122,13 +122,6 @@ static void osd_text(int x, int y, const char *text)
 	emu_text_out16(x, y, text);
 }
 
-/*
-void log1(void *p1, void *p2)
-{
-	lprintf("%p %p %p\n", p1, p2, DrawLineDest);
-}
-*/
-
 static void cd_leds(void)
 {
 	static int old_reg = 0;
diff --git a/platform/gp2x/emu.c b/platform/gp2x/emu.c
index 7e91361f..683e2673 100644
--- a/platform/gp2x/emu.c
+++ b/platform/gp2x/emu.c
@@ -222,7 +222,7 @@ static unsigned char __attribute__((aligned(4))) rot_buff[320*4*2];
 
 static int EmuScanBegin16_rot(unsigned int num)
 {
-	DrawLineDest = rot_buff + (num & 3) * 320 * 2;
+	Pico.est.DrawLineDest = rot_buff + (num & 3) * 320 * 2;
 	return 0;
 }
 
@@ -237,7 +237,7 @@ static int EmuScanEnd16_rot(unsigned int num)
 
 static int EmuScanBegin8_rot(unsigned int num)
 {
-	DrawLineDest = rot_buff + (num & 3) * 320;
+	Pico.est.DrawLineDest = rot_buff + (num & 3) * 320;
 	return 0;
 }
 
@@ -262,14 +262,14 @@ static int EmuScanBegin16_ld(unsigned int num)
 	if (emu_scan_begin)
 		return emu_scan_begin(ld_counter);
 	else
-		DrawLineDest = (char *)g_screen_ptr + 320 * ld_counter * gp2x_current_bpp / 8;
+		Pico.est.DrawLineDest = (char *)g_screen_ptr + 320 * ld_counter * gp2x_current_bpp / 8;
 
 	return 0;
 }
 
 static int EmuScanEnd16_ld(unsigned int num)
 {
-	void *oldline = DrawLineDest;
+	void *oldline = Pico.est.DrawLineDest;
 
 	if (emu_scan_end)
 		emu_scan_end(ld_counter);
@@ -280,7 +280,7 @@ static int EmuScanEnd16_ld(unsigned int num)
 		ld_left = ld_lines;
 
 		EmuScanBegin16_ld(num);
-		memcpy32(DrawLineDest, oldline, 320 * gp2x_current_bpp / 8 / 4);
+		memcpy32(Pico.est.DrawLineDest, oldline, 320 * gp2x_current_bpp / 8 / 4);
 		if (emu_scan_end)
 			emu_scan_end(ld_counter);
 
diff --git a/platform/psp/emu.c b/platform/psp/emu.c
index 8deb7fd3..cb16d264 100644
--- a/platform/psp/emu.c
+++ b/platform/psp/emu.c
@@ -242,8 +242,8 @@ static void do_slowmode_lines(int line_to)
 
 static void EmuScanPrepare(void)
 {
-	HighCol = (unsigned char *)VRAM_CACHED_STUFF + 8;
-	if (!(Pico.video.reg[1]&8)) HighCol += 8*512;
+	Pico.est.HighCol = (unsigned char *)VRAM_CACHED_STUFF + 8;
+	if (!(Pico.video.reg[1]&8)) Pico.est.HighCol += 8*512;
 
 	if (dynamic_palette > 0)
 		dynamic_palette--;
@@ -258,7 +258,7 @@ static void EmuScanPrepare(void)
 static int EmuScanSlowBegin(unsigned int num)
 {
 	if (!dynamic_palette)
-		HighCol = (unsigned char *)VRAM_CACHED_STUFF + num * 512 + 8;
+		Pico.est.HighCol = (unsigned char *)VRAM_CACHED_STUFF + num * 512 + 8;
 
 	return 0;
 }
@@ -276,7 +276,7 @@ static int EmuScanSlowEnd(unsigned int num)
 	if (dynamic_palette) {
 		int line_len = (Pico.video.reg[12]&1) ? 320 : 256;
 		void *dst = (char *)VRAM_STUFF + 512*240 + 512*2*num;
-		amips_clut_f(dst, HighCol + 8, localPal, line_len);
+		amips_clut_f(dst, Pico.est.HighCol + 8, localPal, line_len);
 	}
 
 	return 0;
diff --git a/tools/mkoffsets.c b/tools/mkoffsets.c
index 4044ad3d..e9eb3c5f 100644
--- a/tools/mkoffsets.c
+++ b/tools/mkoffsets.c
@@ -23,8 +23,12 @@ int main(int argc, char *argv[])
   fprintf(f, "/* autogenerated by %s, do not edit */\n", argv[0]);
   DUMP(f, DrawScanline);
   DUMP(f, rendstatus);
+  DUMP(f, DrawLineDest);
+  DUMP(f, HighCol);
+  DUMP(f, HighPreSpr);
   DUMP(f, Pico_video);
   DUMP(f, Pico_vram);
+  DUMP(f, PicoOpt);
   fclose(f);
 
   return 0;