X-Git-Url: http://4ch.mooo.com/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fmodex16.c;h=8776d0aa3ef080ff52e220940e4fb5ca804a1ac3;hb=40391c09eb16ee6d6261bca1e37ba08a3de2af9c;hp=d5e17a9862221debe792e7ec35a6c8cf6bd13004;hpb=6245ae3447f2f001412b05d37dc4482a5256656f;p=16.git

diff --git a/src/lib/modex16.c b/src/lib/modex16.c
index d5e17a98..8776d0aa 100755
--- a/src/lib/modex16.c
+++ b/src/lib/modex16.c
@@ -62,11 +62,7 @@ void VGAmodeX(sword vq, boolean cmem, global_game_variables_t *gv)
 static void
 vgaSetMode(byte mode)
 {
-  union REGS regs;
-
-  regs.h.ah = SET_MODE;
-  regs.h.al = mode;
-  int86(VIDEO_INT, &regs, &regs);
+  int10_setmode(mode);
 }
 
 //---------------------------------------------------
@@ -74,60 +70,38 @@ vgaSetMode(byte mode)
 // Use the bios to get the current video mode
 //
 
-long
+byte/*FIXME: why long? "long" is 32-bit datatype, VGA modes are 8-bit numbers. */
 vgaGetMode()
 {
-    union REGS rg;
-
-    rg.h.ah = 0x0f;
-    int86(VIDEO_INT, &rg, &rg);
-
-    return rg.h.al;
+    return int10_getmode();
 }
 
 /* -========================= Entry  Points ==========================- */
 void modexEnter(sword vq, boolean cmem, global_game_variables_t *gv)
 {
 	word i;
-	dword far*ptr=(dword far*)VGA;      /* used for faster screen clearing */
+	struct vga_mode_params cm;
 	int CRTParmCount;
-	/* common mode X initiation stuff~ */
-	modexsetBaseXMode();
+
+	vgaSetMode(VGA_256_COLOR_MODE);
+	vga_enable_256color_modex();
+	update_state_from_vga();
+	vga_read_crtc_mode(&cm);
 
 	switch(vq)
 	{
 		case 1:
 			//CRTParmCount = sizeof(ModeX_320x240regs) / sizeof(ModeX_320x240regs[0]);
 			/* width and height */
-			gv->video.page[0].sw=vga_state.vga_width = 320; // VGA lib currently does not update this
-			gv->video.page[0].sh=vga_state.vga_height = 240; // VGA lib currently does not update this
-
-			/* send the CRTParms */
-			/*for(i=0; i<CRTParmCount; i++) {
-				outpw(CRTC_INDEX, ModeX_320x240regs[i]);
-			}*/
-			{
-			struct vga_mode_params cm;
-			vga_read_crtc_mode(&cm);
-
-// 	0x5f00,		/* Horizontal total */
-// 	0x4f01,		/* horizontal display enable end */
-// 	0x5002,		/* Start horizontal blanking */
-// 	0x8203,		/* End horizontal blanking */
-// 	0x5404,		/* Start horizontal retrace */
-// 	0x8005,		/* End horizontal retrace */
-// 	0x0d06,		 /* vertical total */
-// 	0x3e07,		 /* overflow (bit 8 of vertical counts) */
-// 	0x4109,		 /* cell height (2 to double-scan */
-// 	0xea10,		 /* v sync start */
-// 	0xac11,		 /* v sync end and protect cr0-cr7 */
-// 	0xdf12,		 /* vertical displayed */
-// 	0x2813,		/* offset/logical width */
-// 	0x0014,		 /* turn off dword mode */
-// 	0xe715,		 /* v blank start */
-// 	0x0616,		 /* v blank end */
-// 	0xe317		  /* turn on byte mode */
-
+			gv->video.page[0].sw = vga_state.vga_width = 320; // VGA lib currently does not update this
+			gv->video.page[0].sh = vga_state.vga_height = 240; // VGA lib currently does not update this
+			/* virtual width and height. match screen, at first */
+			gv->video.page[0].height = gv->video.page[0].sh;
+			gv->video.page[0].width = gv->video.page[0].sw;
+
+			// mode X BYTE mode
+			cm.word_mode = 0;
+			cm.dword_mode = 0;
 			// 320x240 mode 60Hz
 			cm.horizontal_total=0x5f + 5; /* CRTC[0]             -5 */
 			cm.horizontal_display_end=0x4f + 1; /* CRTC[1]       -1 */
@@ -146,114 +120,70 @@ void modexEnter(sword vq, boolean cmem, global_game_variables_t *gv)
 			cm.clock_select = 0; /* misc register = 0xE3  25MHz */
 			cm.vsync_neg = 1;
 			cm.hsync_neg = 1;
-
-			vga_write_crtc_mode(&cm,0);
-			}
-		break;
-		case 2:
-			CRTParmCount = sizeof(ModeX_160x120regs) / sizeof(ModeX_160x120regs[0]);
-			/* width and height */
-			gv->video.page[0].sw=120;
-			gv->video.page[0].sh=160;
-
-			/* send the CRTParms */
-			for(i=0; i<CRTParmCount; i++) {
-				outpw(CRTC_INDEX, ModeX_160x120regs[i]);
-			}
-		break;
-		case 3:
-			CRTParmCount = sizeof(ModeX_320x200regs) / sizeof(ModeX_320x200regs[0]);
-			/* width and height */
-			gv->video.page[0].sw=320;
-			gv->video.page[0].sh=200;
-
-			/* send the CRTParms */
-			for(i=0; i<CRTParmCount; i++) {
-				outpw(CRTC_INDEX, ModeX_320x200regs[i]);
-			}
-		break;
-		case 4:
-			CRTParmCount = sizeof(ModeX_192x144regs) / sizeof(ModeX_192x144regs[0]);
-			/* width and height */
-			gv->video.page[0].sw=192;
-			gv->video.page[0].sh=144;
-
-			/* send the CRTParms */
-			for(i=0; i<CRTParmCount; i++) {
-				outpw(CRTC_INDEX, ModeX_192x144regs[i]);
-			}
-		break;
-		case 5:
-			CRTParmCount = sizeof(ModeX_256x192regs) / sizeof(ModeX_256x192regs[0]);
-			/* width and height */
-			gv->video.page[0].sw=256;
-			gv->video.page[0].sh=192;
-
-			/* send the CRTParms */
-			for(i=0; i<CRTParmCount; i++) {
-				outpw(CRTC_INDEX, ModeX_256x192regs[i]);
-			}
-		break;
+			cm.offset = (vga_state.vga_width / (4 * 2)); // 320 wide (40 x 4 pixel groups x 2)
+			break;
+		case 2: // TODO: 160x120 according to ModeX_160x120regs
+			return;
+		case 3: // TODO: 160x120 according to ModeX_320x200regs
+			return;
+		case 4: // TODO: 160x120 according to ModeX_192x144regs
+			return;
+		case 5: // TODO: 160x120 according to ModeX_256x192regs
+			return;
+		default:
+			return;
 	}
 
+	vga_state.vga_stride = cm.offset * 2;
+	vga_write_crtc_mode(&cm,0);
+
 	/* clear video memory */
 	switch (cmem)
 	{
-		case 1:
-		/* clear video memory */
-		outpw(SC_INDEX, 0x0f02);
-		for(i=0; i<0x8000; i++) {
-			ptr[i] = 0x0000;
+		case 1: {
+			/* clear video memory */
+			dword far*ptr=(dword far*)vga_state.vga_graphics_ram;//VGA;      /* used for faster screen clearing */
+			vga_write_sequencer(2/*map mask register*/,0xf/*all 4 planes*/);
+			for(i = 0;i < 0x4000; i++) ptr[i] = 0x0000; // 0x4000 x dword = 64KB
 		}
 		break;
 	}
-	gv->video.page[0].tilesw = gv->video.page[0].sw/TILEWH;
-	gv->video.page[0].tilesh = gv->video.page[0].sh/TILEWH;
+
+//	gv->video.page[0].tw = gv->video.page[0].sw/TILEWH;
+//	gv->video.page[0].th = gv->video.page[0].sh/TILEWH;
+
 	//TODO MAKE FLEXIBLE~
-	gv->video.page[0].tilemidposscreenx = gv->video.page[0].tilesw;
-	gv->video.page[0].tilemidposscreeny = (gv->video.page[0].tilesh/2)+1;
-	#define PAGE_SIZE		(word)(gv->video.page[0].sw/4 * gv->video.page[0].sh)
+//	gv->video.page[0].tilemidposscreenx = gv->video.page[0].tilesw;
+//	gv->video.page[0].tilemidposscreeny = (gv->video.page[0].tilesh/2)+1;
+	gv->video.num_of_pages=0;
 }
 
 void
 modexLeave() {
-	/* TODO restore original mode and palette */
+	/* VGAmodeX restores original mode and palette */
 	vgaSetMode(TEXT_MODE);
 }
 
-//    setBaseXMode() does the initialization to make the VGA ready to
-//    accept any combination of configuration register settings.  This
-//    involves enabling writes to index 0 to 7 of the CRT controller (port
-//    0x3D4), by clearing the most significant bit (bit 7) of index 0x11.
-void
-modexsetBaseXMode()
-{
-	/* TODO save current video mode and palette */
-	vgaSetMode(VGA_256_COLOR_MODE);
-	vga_enable_256color_modex();
-	update_state_from_vga();
-}
-
 page_t
 modexDefaultPage(page_t *p)
 {
     page_t page;
 
     /* default page values */
-    page.data = VGA;
+    page.data = vga_state.vga_graphics_ram;//VGA;
     page.dx = 0;
     page.dy = 0;
 	page.sw = p->sw;
 	page.sh = p->sh;
-	page.width = p->sw;
-	page.height = p->sh;
+	page.width = p->sw+TILEWHD;
+	page.height = p->sh+TILEWHD;
 	page.tw = page.sw/TILEWH;
 	page.th = page.sh/TILEWH;
+	page.tilesw=page.width/TILEWH;
+	page.tilesh=page.height/TILEWH;
 	page.tilemidposscreenx = page.tw/2;
 	page.tilemidposscreeny = (page.th/2)+1;
-	page.tilesw=p->tilesw;
-	page.tilesh=p->tilesh;
-	//pageSize = p->sw*p->sh;
+	page.pagesize = (sdiword)page.width*page.height;
 	page.id = 0;
 
     return page;
@@ -266,17 +196,19 @@ page_t
 modexNextPage(page_t *p) {
     page_t result;
 
-    result.data = p->data + (p->width/4)*p->height;
+    result.data = p->data + (byte)(p->width/4)*p->height;
     result.dx = 0;
     result.dy = 0;
     result.width = p->width;
     result.height = p->height;
-	result.tw = p->width/TILEWH;
-	result.th = p->height/TILEWH;
+	result.tw = p->tw;
+	result.th = p->th;
+	result.tilesw = p->tilesw;
+	result.tilesh = p->tilesh;
 	result.id = p->id+1;
+	result.pagesize = p->pagesize;
 
 	return result;
-// 	return modexNextPageFlexibleSize(&p, p->width, p->height);
 }
 
 //next page with defined dimentions~
@@ -285,18 +217,44 @@ modexNextPageFlexibleSize(page_t *p, word x, word y)
 {
 	page_t result;
 
-	result.data = p->data + (p->width/4)*p->height;  /* compute the offset */
+	result.data = p->data + (byte)(p->width/4)*p->height;  /* compute the offset */
 	result.dx = 0;
 	result.dy = 0;
 	result.width = x;
 	result.height = y;
-	result.tw = p->width/TILEWH;
-	result.th = p->height/TILEWH;
+	result.tw = result.sw/TILEWH;
+	result.th = result.sh/TILEWH;
+	result.tilesw=result.width/TILEWH;
+	result.tilesh=result.height/TILEWH;
 	result.id = p->id+1;
+	result.pagesize = (sdiword)result.width*result.height;
 
 	return result;
 }
 
+void modexCalcVmemRemain(video_t *video)
+{
+	byte i;
+	//printf("\n\n	1st vmem_remain=%ld\n", video->vmem_remain);
+	for(i=0; i<=video->num_of_pages-1; i++)
+	{
+		video->vmem_remain-=video->page[i].pagesize;
+		//printf("		[%u], video->page[i].pagesize=%ld\n", i, video->page[i].pagesize);
+		//printf("		[%u], vmem_remain=%ld\n", i, video->vmem_remain);
+	}
+}
+
+void modexHiganbanaPageSetup(video_t *video)
+{
+	video->vmem_remain=262144L;
+	(video->page[0]) = modexDefaultPage(&(video->page[0]));	video->num_of_pages++;
+	//video->page[0].width += (TILEWHD); video->page[0].height += (TILEWHD);
+	(video->page[1]) = modexNextPage(&(video->page[0]));	video->num_of_pages++;
+	(video->page[2]) = modexNextPageFlexibleSize(&(video->page[1]), video->page[0].width, video->page[0].sh-40);	video->num_of_pages++;
+	(video->page[3]) = modexNextPageFlexibleSize(&(video->page[2]), TILEWH, TILEWH);	video->num_of_pages++;
+	modexCalcVmemRemain(video);
+	video->p=0;
+}
 
 void
 modexShowPage(page_t *page) {
@@ -414,7 +372,7 @@ modexCopyPageRegion(page_t *dest, page_t *src,
 {
     word doffset = (word)dest->data + dy*(dest->width/4) + dx/4;
     word soffset = (word)src->data + sy*(src->width/4) + sx/4;
-    word scans   = width/4;
+    word scans   = vga_state.vga_stride;
     word nextSrcRow = src->width/4 - scans - 1;
     word nextDestRow = dest->width/4 - scans - 1;
     byte lclip[] = {0x0f, 0x0e, 0x0c, 0x08};  /* clips for rectangles not on 4s */
@@ -626,7 +584,8 @@ modexPalUpdate(bitmap_t *bmp, word *i, word qp, word aqoffset)
 	static word a[PAL_SIZE];	//palette array of change values!
 	word z=0, aq=0, aa=0, pp=0;
 
-	modexWaitBorder();
+	//modexWaitBorder();
+	vga_wait_for_vsync();
 	if((*i)==0)
 	{
 		memset(a, -1, sizeof(a));
@@ -676,7 +635,8 @@ modexPalUpdate(bitmap_t *bmp, word *i, word qp, word aqoffset)
 		//if(qp>0) printf("qp=%d\n", qp);
 		//if(qp>0) printf("					     (*i)=%d\n", (*i)/3);
 	}
-	modexWaitBorder();	  /* waits one retrace -- less flicker */
+	//modexWaitBorder();	  /* waits one retrace -- less flicker */
+	vga_wait_for_vsync();
 	if((*i)>=PAL_SIZE/2 && w==0)
 	{
 		for(; (*i)<PAL_SIZE; (*i)++)
@@ -715,7 +675,7 @@ printf("\nqqqqqqqq\n\n");
 		pp = q;
 		//printf("1(*i)=%02d\n", (*i)/3);
 		//printf("1z=%02d\n", z/3);
-		chkcolor(bmp, &q, &a, &aa, &z, i);
+		modexchkcolor(bmp, &q, &a, &aa, &z, i);
 		//printf("2(*i)=%02d\n", (*i)/3);
 		//printf("2z=%02d\n", z/3);
 		aq=0;
@@ -787,13 +747,15 @@ void
 modexPalUpdate1(byte *p)
 {
 	int i;
-	modexWaitBorder();
+	//modexWaitBorder();
+	vga_wait_for_vsync();
 	outp(PAL_WRITE_REG, 0);  /* start at the beginning of palette */
 	for(i=0; i<PAL_SIZE/2; i++)
 	{
 		outp(PAL_DATA_REG, p[i]);
 	}
-	modexWaitBorder();	  /* waits one retrace -- less flicker */
+	//modexWaitBorder();	  /* waits one retrace -- less flicker */
+	vga_wait_for_vsync();
 	for(; i<PAL_SIZE; i++)
 	{
 		outp(PAL_DATA_REG, p[(i)]);
@@ -804,13 +766,15 @@ void
 modexPalUpdate0(byte *p)
 {
 	int i;
-	modexWaitBorder();
+	//modexWaitBorder();
+	vga_wait_for_vsync();
 	outp(PAL_WRITE_REG, 0);  /* start at the beginning of palette */
 	for(i=0; i<PAL_SIZE/2; i++)
 	{
 		outp(PAL_DATA_REG, rand());
 	}
-	modexWaitBorder();	  /* waits one retrace -- less flicker */
+	//modexWaitBorder();	  /* waits one retrace -- less flicker */
+	vga_wait_for_vsync();
 	for(; i<PAL_SIZE; i++)
 	{
 		outp(PAL_DATA_REG, rand());
@@ -820,14 +784,15 @@ modexPalUpdate0(byte *p)
 void
 modexPalOverscan(byte *p, word col)
 {
-	modexWaitBorder();
+	//modexWaitBorder();
+	vga_wait_for_vsync();
 	outp(PAL_WRITE_REG, 0);  /* start at the beginning of palette */
 	outp(PAL_DATA_REG, col);
 }
 
 //color checker~
 //i want to make another vesion that checks the palette when the palette is being appened~
-void chkcolor(bitmap_t *bmp, word *q, word *a, word *aa, word *z, word *i/*, word *offset*/)
+void modexchkcolor(bitmap_t *bmp, word *q, word *a, word *aa, word *z, word *i/*, word *offset*/)
 {
 		byte *pal;
 		word zz=0;
@@ -945,23 +910,13 @@ byte modexgetPixel(page_t *page, int x, int y)
 
 }
 
-void modexhlin(page_t *page, word xl, word xh, word y, word color)
-{
-	word x;
-	word yy=0;
-
-	for(x=0;x<xh*4;x+=4)
-	{
-		if(x+4>=page[0].sw-1){ x=0; yy+=4; }
-		modexClearRegion(page, x+xl, y+yy, 4, 4, color);
-	}
-	//modexputPixel(page, x+xl, y, color);
-}
-
-void modexprint(page_t *page, word x, word y, word t, word col, word bgcol, const byte *str, boolean q)
+void modexprint(page_t *page, word x, word y, word t, word col, word bgcol, const byte *str)
 {
 	word s, o, w;
+	word x_draw = x;
 	word addr = (word) romFontsData.l;
+	word addrq = (page->width/4) * y + (x / 4) + ((word)page->data);
+	word addrr = addrq;
 	byte c;
 
 	s=romFonts[t].seg;
@@ -972,35 +927,23 @@ void modexprint(page_t *page, word x, word y, word t, word col, word bgcol, cons
 	for(; *str != '\0'; str++)
 	{
 	c = (*str);
-	if((c=='\n'/* || c=="\
-"*/) || romFontsData.chw
->=page->width)
+	if(c=='\n')
 	{
-		romFontsData.chw=0;
-		y+=romFonts[t].charSize;
+		x = x_draw;
+		romFontsData.chw = 0;
+		addrq += (page->width / 4) * 8;
+		addrr = addrq;
+		y += 8;
 		continue;
 	}
-	//load the letter 'A'
-	__asm {
-		MOV DI, addr
-		MOV SI, o
-		MOV ES, s
-		SUB AH, AH
-		MOV AL, c	; the letter
-		MOV CX, w
-		MUL CX
-		ADD SI, AX	;the address of charcter
-	L1:	MOV AX, ES:SI
-		MOV DS:DI, AX
-		INC SI
-		INC DI
-		DEC CX
-		JNZ L1
-	}
-//TODO: OPTIMIZE THIS!!!!
-		modexDrawCharPBuf(page, x, y, t, col, bgcol, q);
 
-		//if(!q) getch();
+	// load the character into romFontsData.l
+	// no need for inline assembly!
+	// NTS: It might even be faster to just let the modexDrawChar point directly at ROM font than to copy per char! --J.C.
+		_fmemcpy(romFontsData.l,MK_FP(s,o+(w*c))/*ROM font location*/,w/*char size*/);
+		modexDrawChar(page, x_draw/*for mode X planar use*/, t, col, bgcol, addrr);
+		x_draw += 8; /* track X for edge of screen */
+		addrr += 2; /* move 8 pixels over (2 x 4 planar pixels per byte) */
 	}
 }
 
@@ -1080,7 +1023,7 @@ void modexprintbig(page_t *page, word x, word y, word t, word col, word bgcol, c
 }
 
 /* palette dump on display! */
-void pdump(page_t *pee)
+void modexpdump(page_t *pee)
 {
 	int mult=(QUADWH);
 	int palq=(mult)*TILEWH;
@@ -1100,7 +1043,7 @@ void pdump(page_t *pee)
 //		 the Virtual screen.											 //
 //																		 //
 /////////////////////////////////////////////////////////////////////////////
-void cls(page_t *page, byte color, byte *Where)
+void modexcls(page_t *page, byte color, byte *Where)
 {
 	//modexClearRegion(page, 0, 0, page->width, page->height, color);
 	/* set map mask to all 4 planes */
@@ -1112,10 +1055,37 @@ void cls(page_t *page, byte color, byte *Where)
 void
 modexWaitBorder() {
     while(inp(INPUT_STATUS_1)  & 8)  {
-	/* spin */
+	// spin
     }
 
     while(!(inp(INPUT_STATUS_1)  & 8))  {
-	/* spin */
+	// spin
     }
 }
+
+void bios_cls() {
+	VGA_ALPHA_PTR ap;
+	VGA_RAM_PTR rp;
+	unsigned char m;
+
+	m = int10_getmode();
+	if ((rp=vga_state.vga_graphics_ram) != NULL && !(m <= 3 || m == 7)) {
+		unsigned int i,im;
+
+		im = (FP_SEG(vga_state.vga_graphics_ram_fence) - FP_SEG(vga_state.vga_graphics_ram));
+		if (im > 0xFFE) im = 0xFFE;
+		im <<= 4;
+		for (i=0;i < im;i++) vga_state.vga_graphics_ram[i] = 0;
+	}
+	else if ((ap=vga_state.vga_alpha_ram) != NULL) {
+		unsigned int i,im;
+
+		im = (FP_SEG(vga_state.vga_alpha_ram_fence) - FP_SEG(vga_state.vga_alpha_ram));
+		if (im > 0x7FE) im = 0x7FE;
+		im <<= 4 - 1; /* because ptr is type uint16_t */
+		for (i=0;i < im;i++) vga_state.vga_alpha_ram[i] = 0x0720;
+	}
+	else {
+		printf("WARNING: bios cls no ptr\n");
+	}
+}