X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;ds=sidebyside;f=src%2Flib%2Fmodex16.c;h=ea61e718c3cc916a476a081539b8818235bd4e1b;hb=3b3532b173704f75e3079dd5d4effea885ab493d;hp=e346ab3e6204f3167614ca22a067e3f086460ea5;hpb=064eedc8b51015c259233375ec7744e2bf20d65c;p=proj16%2F16.git diff --git a/src/lib/modex16.c b/src/lib/modex16.c old mode 100644 new mode 100755 index e346ab3e..ea61e718 --- a/src/lib/modex16.c +++ b/src/lib/modex16.c @@ -1,920 +1,1311 @@ -#include -#include -#include -#include -#include -#include -#include "src\lib\modex16.h" - - -byte far* VGA=(byte far*) 0xA0000000; /* this points to video memory. */ - -static void fadePalette(sbyte fade, sbyte start, word iter, byte *palette); -static byte tmppal[PAL_SIZE]; - -static void -vgaSetMode(byte mode) -{ - union REGS regs; - - regs.h.ah = SET_MODE; - regs.h.al = mode; - int86(VIDEO_INT, ®s, ®s); -} - - -/* -========================= Entry Points ==========================- */ -void -modexEnter() { - word i; - dword far*ptr=(dword far*)VGA; /* used for faster screen clearing */ - word CRTParms[] = { - 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 */ - 0x0014, /* turn off dword mode */ - 0xe715, /* v blank start */ - 0x0616, /* v blank end */ - 0xe317 /* turn on byte mode */ - }; - int CRTParmCount = sizeof(CRTParms) / sizeof(CRTParms[0]); - - /* TODO save current video mode and palette */ - vgaSetMode(VGA_256_COLOR_MODE); - - /* disable chain4 mode */ - outpw(SC_INDEX, 0x0604); - - /* synchronous reset while setting Misc Output */ - outpw(SC_INDEX, 0x0100); - - /* select 25 MHz dot clock & 60 Hz scanning rate */ - outp(MISC_OUTPUT, 0xe3); - - /* undo reset (restart sequencer) */ - outpw(SC_INDEX, 0x0300); - - /* reprogram the CRT controller */ - outp(CRTC_INDEX, 0x11); /* VSync End reg contains register write prot */ - outp(CRTC_DATA, 0x7f); /* get current write protect on varios regs */ - - /* send the CRTParms */ - for(i=0; idata + (p->width/4)*p->height; /* compute the offset */ - result.dx = 0; - result.dy = 0; - result.width = p->width; - result.height = p->height; - - return result; -} - - -void -modexShowPage(page_t *page) { - word high_address; - word low_address; - word offset; - byte crtcOffset; - - /* calculate offset */ - offset = (word) page->data; - offset += page->dy * (page->width >> 2 ); - offset += page->dx >> 2; - - /* calculate crtcOffset according to virtual width */ - crtcOffset = page->width >> 3; - - high_address = HIGH_ADDRESS | (offset & 0xff00); - low_address = LOW_ADDRESS | (offset << 8); - - /* wait for appropriate timing and then program CRTC */ - while ((inp(INPUT_STATUS_1) & DISPLAY_ENABLE)); - outpw(CRTC_INDEX, high_address); - outpw(CRTC_INDEX, low_address); - outp(CRTC_INDEX, 0x13); - outp(CRTC_DATA, crtcOffset); - - /* wait for one retrace */ - while (!(inp(INPUT_STATUS_1) & VRETRACE)); - - /* do PEL panning here */ - outp(AC_INDEX, 0x33); - outp(AC_INDEX, (page->dx & 0x03) << 1); -} - - -void -modexPanPage(page_t *page, int dx, int dy) { - page->dx = dx; - page->dy = dy; -} - - -void -modexSelectPlane(byte plane) { - outp(SC_INDEX, MAP_MASK); /* select plane */ - outp(SC_DATA, plane); -} - - -void -modexClearRegion(page_t *page, int x, int y, int w, int h, byte color) { - word pageOff = (word) page->data; - word xoff=x/4; /* xoffset that begins each row */ - word scanCount=w/4; /* number of iterations per row (excluding right clip)*/ - word poffset = pageOff + y*(page->width/4) + xoff; /* starting offset */ - word nextRow = page->width/4-scanCount-1; /* loc of next row */ - byte lclip[] = {0x0f, 0x0e, 0x0c, 0x08}; /* clips for rectangles not on 4s */ - byte rclip[] = {0x00, 0x01, 0x03, 0x07}; - byte left = lclip[x&0x03]; - byte right = rclip[(x+w)&0x03]; - - /* handle the case which requires an extra group */ - if((x & 0x03) && !((x+w) & 0x03)) { - right=0x0f; - } - - __asm { - MOV AX, SCREEN_SEG ; go to the VGA memory - MOV ES, AX - MOV DI, poffset ; go to the first pixel - MOV DX, SC_INDEX ; point to the map mask - MOV AL, MAP_MASK - OUT DX, AL - INC DX - MOV AL, color ; get ready to write colors - SCAN_START: - MOV CX, scanCount ; count the line - MOV BL, AL ; remember color - MOV AL, left ; do the left clip - OUT DX, AL ; set the left clip - MOV AL, BL ; restore color - STOSB ; write the color - DEC CX - JZ SCAN_DONE ; handle 1 group stuff - - ;-- write the main body of the scanline - MOV BL, AL ; remember color - MOV AL, 0x0f ; write to all pixels - OUT DX, AL - MOV AL, BL ; restore color - REP STOSB ; write the color - SCAN_DONE: - MOV BL, AL ; remeber color - MOV AL, right - OUT DX, AL ; do the right clip - MOV AL, BL ; restore color - STOSB ; write pixel - ADD DI, nextRow ; go to the next row - DEC h - JNZ SCAN_START - } -} - - -void -modexDrawBmp(page_t *page, int x, int y, bitmap_t *bmp) { - /* draw the region (the entire freakin bitmap) */ - modexDrawBmpRegion(page, x, y, 0, 0, bmp->width, bmp->height, bmp); -} - - -void -modexDrawBmpRegion(page_t *page, int x, int y, - int rx, int ry, int rw, int rh, bitmap_t *bmp) { - word poffset = (word) page->data + y*(page->width/4) + x/4; - byte *data = bmp->data;//+bmp->offset; - word bmpOffset = (word) data + ry * bmp->width + rx; - word width = rw; - word height = rh; - byte plane = 1 << ((byte) x & 0x03); - word scanCount = width/4 + (width%4 ? 1 :0); - word nextPageRow = page->width/4 - scanCount; - word nextBmpRow = (word) bmp->width - width; - word rowCounter; - byte planeCounter = 4; - - //code is a bit slow here - __asm { - MOV AX, SCREEN_SEG ; go to the VGA memory - MOV ES, AX - - MOV DX, SC_INDEX ; point at the map mask register - MOV AL, MAP_MASK ; - OUT DX, AL ; - - PLANE_LOOP: - MOV DX, SC_DATA ; select the current plane - MOV AL, plane ; - OUT DX, AL ; - - ;-- begin plane painting - MOV AX, height ; start the row counter - MOV rowCounter, AX ; - MOV DI, poffset ; go to the first pixel - MOV SI, bmpOffset ; go to the bmp pixel - ROW_LOOP: - MOV CX, width ; count the columns - SCAN_LOOP: - MOVSB ; copy the pixel - SUB CX, 3 ; we skip the next 3 - ADD SI, 3 ; skip the bmp pixels - LOOP SCAN_LOOP ; finish the scan - - MOV AX, nextPageRow - ADD DI, AX ; go to the next row on screen - MOV AX, nextBmpRow - ADD SI, AX ; go to the next row on bmp - - DEC rowCounter - JNZ ROW_LOOP ; do all the rows - ;-- end plane painting - - MOV AL, plane ; advance to the next plane - SHL AL, 1 ; - AND AL, 0x0f ; mask the plane properly - MOV plane, AL ; store the plane - - INC bmpOffset ; start bmp at the right spot - - DEC planeCounter - JNZ PLANE_LOOP ; do all 4 planes - } -} - - -void -modexDrawPlanarBuf(page_t *page, int x, int y, planar_buf_t *bmp) { - /* TODO - adapt from test code */ - int plane; - for(plane=0; plane < 4; plane++) - { - //fack - } -} - - -void -modexDrawSprite(page_t *page, int x, int y, bitmap_t *bmp) { - /* draw the whole sprite */ - modexDrawSpriteRegion(page, x, y, 0, 0, bmp->width, bmp->height, bmp); -} - -void -modexDrawSpriteRegion(page_t *page, int x, int y, - int rx, int ry, int rw, int rh, bitmap_t *bmp) { - word poffset = (word)page->data + y*(page->width/4) + x/4; - byte *data = bmp->data;//+bmp->offset; - word bmpOffset = (word) data + ry * bmp->width + rx; - word width = rw; - word height = rh; - byte plane = 1 << ((byte) x & 0x03); - word scanCount = width/4 + (width%4 ? 1 :0); - word nextPageRow = page->width/4 - scanCount; - word nextBmpRow = (word) bmp->width - width; - word rowCounter; - byte planeCounter = 4; - - __asm { - MOV AX, SCREEN_SEG ; go to the VGA memory - MOV ES, AX - - MOV DX, SC_INDEX ; point at the map mask register - MOV AL, MAP_MASK ; - OUT DX, AL ; - - PLANE_LOOP: - MOV DX, SC_DATA ; select the current plane - MOV AL, plane ; - OUT DX, AL ; - - ;-- begin plane painting - MOV AX, height ; start the row counter - MOV rowCounter, AX ; - MOV DI, poffset ; go to the first pixel - MOV SI, bmpOffset ; go to the bmp pixel - ROW_LOOP: - MOV CX, width ; count the columns - SCAN_LOOP: - LODSB - DEC SI - CMP AL, 0 - JNE DRAW_PIXEL ; draw non-zero pixels - - INC DI ; skip the transparent pixel - ADD SI, 1 - JMP NEXT_PIXEL - DRAW_PIXEL: - MOVSB ; copy the pixel - NEXT_PIXEL: - SUB CX, 3 ; we skip the next 3 - ADD SI, 3 ; skip the bmp pixels - LOOP SCAN_LOOP ; finish the scan - - MOV AX, nextPageRow - ADD DI, AX ; go to the next row on screen - MOV AX, nextBmpRow - ADD SI, AX ; go to the next row on bmp - - DEC rowCounter - JNZ ROW_LOOP ; do all the rows - ;-- end plane painting - - MOV AL, plane ; advance to the next plane - SHL AL, 1 ; - AND AL, 0x0f ; mask the plane properly - MOV plane, AL ; store the plane - - INC bmpOffset ; start bmp at the right spot - - DEC planeCounter - JNZ PLANE_LOOP ; do all 4 planes - } -} - - -/* copy a region of video memory from one page to another. - * It assumes that the left edge of the tile is the same on both - * regions and the memory areas do not overlap. - */ -void -modexCopyPageRegion(page_t *dest, page_t *src, - word sx, word sy, - word dx, word dy, - word width, word height) -{ - 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 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 */ - byte rclip[] = {0x0f, 0x01, 0x03, 0x07}; - byte left = lclip[sx&0x03]; - byte right = rclip[(sx+width)&0x03]; - - __asm { - MOV AX, SCREEN_SEG ; work in the vga space - MOV ES, AX ; - MOV DI, doffset ; - MOV SI, soffset ; - - MOV DX, GC_INDEX ; turn off cpu bits - MOV AX, 0008h ; - OUT DX, AX - - MOV AX, SC_INDEX ; point to the mask register - MOV DX, AX ; - MOV AL, MAP_MASK ; - OUT DX, AL ; - INC DX ; - - ROW_START: - PUSH DS - MOV AX, ES - MOV DS, AX - MOV CX, scans ; the number of latches - - MOV AL, left ; do the left column - OUT DX, AL ; - MOVSB ; - DEC CX ; - - MOV AL, 0fh ; do the inner columns - OUT DX, AL - REP MOVSB ; copy the pixels - - MOV AL, right ; do the right column - OUT DX, AL - MOVSB - POP DS - - MOV AX, SI ; go the start of the next row - ADD AX, nextSrcRow ; - MOV SI, AX ; - MOV AX, DI ; - ADD AX, nextDestRow ; - MOV DI, AX ; - - DEC height ; do the rest of the actions - JNZ ROW_START ; - - MOV DX, GC_INDEX+1 ; go back to CPU data - MOV AL, 0ffh ; none from latches - OUT DX, AL ; - } -} - - -/* fade and flash */ -void -modexFadeOn(word fade, byte *palette) { - fadePalette(-fade, 64, 64/fade+1, palette); -} - - -void -modexFadeOff(word fade, byte *palette) { - fadePalette(fade, 0, 64/fade+1, palette); -} - - -void -modexFlashOn(word fade, byte *palette) { - fadePalette(fade, -64, 64/fade+1, palette); -} - - -void -modexFlashOff(word fade, byte *palette) { - fadePalette(-fade, 0, 64/fade+1, palette); -} - - -static void -fadePalette(sbyte fade, sbyte start, word iter, byte *palette) { - word i; - byte dim = start; - - /* handle the case where we just update */ - if(iter == 0) { - modexPalUpdate2(palette); - return; - } - - while(iter > 0) { /* FadeLoop */ - for(i=0; i 127) { - tmppal[i] = 0; - } else if(tmppal[i] > 63) { - tmppal[i] = 63; - } - } - modexPalUpdate2(tmppal); - iter--; - dim += fade; - } -} - - -/* save and load */ -void -modexPalSave(byte *palette) { - int i; - - outp(PAL_READ_REG, 0); /* start at palette entry 0 */ - for(i=0; ipalette; - word w=0; - word q=0; - word qq=0; - word *qqqq; - static word a[256] = { 0 }; - word z=0,aq=0,aa=0; - word pp=0,aqpp=0,spee=0,ppee=0; - -// if(qp>0) printf("(*i)=%02d\n", (*i)); - modexWaitBorder(); - if((*i)==0) outp(PAL_WRITE_REG, 0); /* start at the beginning of palette */ - else if(qp==0) - { - q=(*i); - (*qqqq)=(*i)-q; - //mxi1=PAL_SIZE/2; - //mxi2=PAL_SIZE; - } - else - { - q=(*i); - qq=(*i)/3; - (*qqqq)=(*i)-(bmp->offset*3); - //mxi1=q+3; - //mxi2=q+3; -// printf("q: %02d\n", (q)); - //printf("mxi1: %02d\n", mxi1); -// printf("qq: %02d\n", (qq)); - //printf(" ((*i)-(bmp->offset*3))=%02d\n", ((*i)-(bmp->offset*3))); - //printf(" (*i)-q=%02d\n", (*i)-q); -// printf("qqqq: %d\n",(*qqqq)); -// printf("================\n"); - outp(PAL_WRITE_REG, qq); /* start at the beginning of palette */ - } - if((*i)0)&&((*i)-q)%3==0 && (p[((*i)-q)]==p[((*i)-q)+3] && p[((*i)-q)+1]==p[((*i)-q)+4] && p[((*i)-q)+2]==p[((*i)-q)+5])) outp(PAL_DATA_REG, p[(*i)-q]); else - if((((*i)-q)%3==0 || ((qp>0)&&((*i)-(bmp->offset*3))%3==0)) && (p[((*i)-q)]==p[((*i)-q)+3] && p[((*i)-q)+1]==p[((*i)-q)+4] && p[((*i)-q)+2]==p[((*i)-q)+5])) - { - printf("[%d]", p[((*i)-q)]); printf("[%d]", p[((*i)-q)+1]); printf("[%d]", p[((*i)-q)+2]); printf("[%d]", p[((*i)-q)+3]); printf("[%d]", p[((*i)-q)+4]); printf("[%d]", p[((*i)-q)+5]); printf(" %d [%d]\n", (*i), p[((*i)-q)]); - w++; - break; - } - else - { - /*if(qp>0) - { - printf(" ((*i)-(bmp->offset*3))=%02d\n", ((*i)-(bmp->offset*3))); - }*/ - /*if(q>0 && qp==0) - { - printf("(*i)-q=%02d", (*i)-q); - printf("[%d]", p[((*i)-q)]); printf("[%d]", p[((*i)-q)+1]); printf("[%d]", p[((*i)-q)+2]); printf("[%d]", p[((*i)-q)+3]); printf("[%d]", p[((*i)-q)+4]); printf("[%d]", p[((*i)-q)+5]); printf(" %d [%d]\n", (*i), p[((*i)-q)]); - }*/ - if(qp==0) outp(PAL_DATA_REG, p[(*i)-q]); - else outp(PAL_DATA_REG, p[((*i)-(bmp->offset*3))]); - /*if(q>0 && qp==0) - { - qq=(*i)-q; - chkcolor(bmp, &q, &a, &aa, &z); - if(a[(*i)-q]==0) - { - printf("%d qqqq\n", qq); - outp(PAL_DATA_REG, p[(*i)-q]); - } - } - else - { - outp(PAL_DATA_REG, p[(*i)-q]); - }*/ - } - } - } - modexWaitBorder(); /* waits one retrace -- less flicker */ - if((*i)>=PAL_SIZE/2 && w==0) - { - for(; (*i)0)&&((*i)-q)%3==0 && (p[((*i)-q)]==p[((*i)-q)+3] && p[((*i)-q)+1]==p[((*i)-q)+4] && p[((*i)-q)+2]==p[((*i)-q)+5])) outp(PAL_DATA_REG, p[(*i)-q]); else - if((((*i)-q)%3==0 || ((qp>0)&&((*i)-(bmp->offset*3))%3==0)) && (p[((*i)-q)]==p[((*i)-q)+3] && p[((*i)-q)+1]==p[((*i)-q)+4] && p[((*i)-q)+2]==p[((*i)-q)+5])) - { - printf("[%d]", p[((*i)-q)]); printf("[%d]", p[((*i)-q)+1]); printf("[%d]", p[((*i)-q)+2]); printf("[%d]", p[((*i)-q)+3]); printf("[%d]", p[((*i)-q)+4]); printf("[%d]", p[((*i)-q)+5]); printf(" %d [%d]\n", (*i), p[((*i)-q)]); - w++; - break; - } - else - { - /*if(qp>0) - { - printf(" ((*i)-(bmp->offset*3))=%02d\n", ((*i)-(bmp->offset*3))); - }*/ - /*if(q>0 && qp==0) - { - printf("(*i)-q=%02d", (*i)-q); - printf("[%d]", p[((*i)-q)]); printf("[%d]", p[((*i)-q)+1]); printf("[%d]", p[((*i)-q)+2]); printf("[%d]", p[((*i)-q)+3]); printf("[%d]", p[((*i)-q)+4]); printf("[%d]", p[((*i)-q)+5]); printf(" %d [%d]\n", (*i), p[((*i)-q)]); - }*/ - if(qp==0) outp(PAL_DATA_REG, p[(*i)-q]); - else outp(PAL_DATA_REG, p[((*i)-(bmp->offset*3))]); - /*if(q>0 && qp==0) - { - qq=(*i)-q; - chkcolor(bmp, &q, &a, &aa, &z); - if(a[(*i)-q]==0) - { - printf("%d qqqq\n", qq); - outp(PAL_DATA_REG, p[(*i)-q]); - } - } - else - { - outp(PAL_DATA_REG, p[(*i)-q]); - }*/ - } - } - } - -// if(qp>0) printf("(*i)=%02d\n", (*i)); - - //palette checker~ - if(q>0 && qp==0/* && qr==0*/) - { - word qw=0; - long lq; - long bufSize = (bmp->width * bmp->height); - chkcolor(bmp, &q, &a, &aa, &z); - - printf("z=%d\n", z/3); - printf("q+z=%d\n", (q+z)/3); - printf("z-ppee=%d\n", (z-ppee)/3); -// printf("%d\n", (z-(z-ppee))/3); - printf("q=%d\n", q/3); - printf("aa=%d\n", aa); - - aq=0; pp = q; ppee=q;//(aq)*3; -aqpee: - while(aqdata[lq]+bmp->offset==aq) - { - //printf("%02d", bmp->data[lq]); - //printf("\n%02d\n", bmp->offset); - //printf("%02d\n", a[aq]); - bmp->data[lq]=((bmp->data[lq]+bmp->offset)-a[aq]); - } - else if(bmp->data[lq]+bmp->offset < z/3){ bmp->data[lq]+=bmp->offset; } - //printf("%02d ", bmp->data[lq]); - //if(lq > 0 && lq%bmp->width==0) printf("\n"); - } - -// if(spee==0) -// { - while(pp<=aqpp) - { - //if(pp<(z-1)) - /*printf("pp=%02d ", pp/3); - printf("bmp: [%d]", bmp->palette[pp-ppee]); - printf("[%d]", bmp->palette[(pp-ppee)+1]); - printf("[%d]\n", bmp->palette[(pp-ppee)+2]);*/ - if(((pp/3)==aq || spee>0)) - { - printf("spee=%d\n", spee); - printf(" pp=%02d ", pp/3); - printf("old bmp: [%d]", bmp->palette[(pp-ppee)]); - printf("[%d]", bmp->palette[(pp-ppee)+1]); - printf("[%d]\n", bmp->palette[(pp-ppee)+2]); - //if(spee==0) printf("\npp=%02d\n\n", pp/3); - bmp->palette[(pp-ppee)]= bmp->palette[(pp-ppee)+3]; - bmp->palette[(pp-ppee)+1]= bmp->palette[(pp-ppee)+4]; - bmp->palette[(pp-ppee)+2]= bmp->palette[(pp-ppee)+5]; - if(spee==0) spee++; - } -/* bmp->palette[pp]= bmp->palette[pp+3]; - bmp->palette[pp+1]= bmp->palette[pp+4]; - bmp->palette[pp+2]= bmp->palette[pp+5];*/ - printf(" pp=%02d ", pp/3); - printf(" bmp: [%d]", bmp->palette[(pp-ppee)]); - printf("[%d]", bmp->palette[(pp-ppee)+1]); - printf("[%d]\n", bmp->palette[(pp-ppee)+2]); -/* printf("bmp: [%d]", bmp->palette[pp]); - printf("[%d]", bmp->palette[pp+1]); - printf("[%d]\n", bmp->palette[pp+2]);*/ - //aqpp=(pp-ppee); - //else if(pp==(z-1)) bmp->palette[pp]=0; - //if(pp, or + * write to the Free Software Foundation, Inc., 51 Franklin Street, + * Fifth Floor, Boston, MA 02110-1301 USA. + * + */ + +#include +#include +#include +#include "src/lib/modex16.h" + +byte far* VGA=(byte far*) 0xA0000000; /* this points to video memory. */ + +static void fadePalette(sbyte fade, sbyte start, word iter, byte *palette); +static byte tmppal[PAL_SIZE]; +//int old_mode; + +///////////////////////////////////////////////////////////////////////////// +// // +// setvideo() - This function Manages the video modes // +// // +///////////////////////////////////////////////////////////////////////////// +void VGAmodeX(sword vq, global_game_variables_t *gv) +{ + union REGS in, out; + + if(!vq) + { // deinit the video + // change to the video mode we were in before we switched to mode 13h + modexLeave(); + in.h.ah = 0x00; + in.h.al = gv->old_mode; + int86(0x10, &in, &out); + + } + else if(vq==1) + { // init the video + // get old video mode + in.h.ah = 0xf; + int86(0x10, &in, &out); + gv->old_mode = out.h.al; + // enter mode + modex__320x240_256__Enter(gv); + } +} + +static void +vgaSetMode(byte mode) +{ + union REGS regs; + + regs.h.ah = SET_MODE; + regs.h.al = mode; + int86(VIDEO_INT, ®s, ®s); +} + +/* -========================= Entry Points ==========================- */ +void +modex__320x240_256__Enter(global_game_variables_t *gv) +{ + word i; + dword far*ptr=(dword far*)VGA; /* used for faster screen clearing */ + word CRTParms[] = { +// 0xe300, /* horizontal total */ + 0x4f01, /* horizontal display enable end */ + 0x5002, /* */ + 0x5404, /* */ + 0x8005, /* */ + 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 */ + }; + + int CRTParmCount = sizeof(CRTParms) / sizeof(CRTParms[0]); + /* width and height */ + //TODO WWWW + + /* disable chain4 mode */ + outpw(SC_INDEX, 0x0604); + + /* synchronous reset while setting Misc Output */ + outpw(SC_INDEX, 0x0100); + + /* select 25 MHz dot clock & 60 Hz scanning rate */ + outp(MISC_OUTPUT, 0xe3); + + /* undo reset (restart sequencer) */ + outpw(SC_INDEX, 0x0300); + + /* reprogram the CRT controller */ + outp(CRTC_INDEX, 0x11); /* VSync End reg contains register write prot */ + outp(CRTC_DATA, 0x7f); /* get current write protect on varios regs */ + + /* send the CRTParms */ + for(i=0; idata + (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.id = p->id+1; + + return result; +// return modexNextPageFlexibleSize(&p, p->width, p->height); +} + +//next page with defined dimentions~ +page_t +modexNextPageFlexibleSize(page_t *p, word x, word y) +{ + page_t result; + + result.data = p->data + (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.id = p->id+1; + + return result; +} + + +void +modexShowPage(page_t *page) { + word high_address; + word low_address; + word offset; + byte crtcOffset; + + /* calculate offset */ + offset = (word) page->data; + offset += page->dy * (page->width >> 2 ); + offset += page->dx >> 2; + + /* calculate crtcOffset according to virtual width */ + crtcOffset = page->width >> 3; + + high_address = HIGH_ADDRESS | (offset & 0xff00); + low_address = LOW_ADDRESS | (offset << 8); + + /* wait for appropriate timing and then program CRTC */ + while ((inp(INPUT_STATUS_1) & DISPLAY_ENABLE)); + outpw(CRTC_INDEX, high_address); + outpw(CRTC_INDEX, low_address); + outp(CRTC_INDEX, 0x13); + outp(CRTC_DATA, crtcOffset); + + /* wait for one retrace */ + while (!(inp(INPUT_STATUS_1) & VRETRACE)); + + /* do PEL panning here */ + outp(AC_INDEX, 0x33); + outp(AC_INDEX, (page->dx & 0x03) << 1); +} + + +void +modexPanPage(page_t *page, int dx, int dy) { + page->dx = dx; + page->dy = dy; +} + + +void +modexSelectPlane(byte plane) { + outp(SC_INDEX, MAP_MASK); /* select plane */ + outp(SC_DATA, plane); +} + + +void +modexClearRegion(page_t *page, int x, int y, int w, int h, byte color) { + word pageOff = (word) page->data; + word xoff=x/4; /* xoffset that begins each row */ + word scanCount=w/4; /* number of iterations per row (excluding right clip)*/ + word poffset = pageOff + y*(page->width/4) + xoff; /* starting offset */ + word nextRow = page->width/4-scanCount-1; /* loc of next row */ + byte lclip[] = {0x0f, 0x0e, 0x0c, 0x08}; /* clips for rectangles not on 4s */ + byte rclip[] = {0x00, 0x01, 0x03, 0x07}; + byte left = lclip[x&0x03]; + byte right = rclip[(x+w)&0x03]; + + /* handle the case which requires an extra group */ + if((x & 0x03) && !((x+w) & 0x03)) { + right=0x0f; + } + + __asm { + MOV AX, SCREEN_SEG ; go to the VGA memory + MOV ES, AX + MOV DI, poffset ; go to the first pixel + MOV DX, SC_INDEX ; point to the map mask + MOV AL, MAP_MASK + OUT DX, AL + INC DX + MOV AL, color ; get ready to write colors + SCAN_START: + MOV CX, scanCount ; count the line + MOV BL, AL ; remember color + MOV AL, left ; do the left clip + OUT DX, AL ; set the left clip + MOV AL, BL ; restore color + STOSB ; write the color + DEC CX + JZ SCAN_DONE ; handle 1 group stuff + + ;-- write the main body of the scanline + MOV BL, AL ; remember color + MOV AL, 0x0f ; write to all pixels + OUT DX, AL + MOV AL, BL ; restore color + REP STOSB ; write the color + SCAN_DONE: + MOV BL, AL ; remeber color + MOV AL, right + OUT DX, AL ; do the right clip + MOV AL, BL ; restore color + STOSB ; write pixel + ADD DI, nextRow ; go to the next row + DEC h + JNZ SCAN_START + } +} + + +void +oldDrawBmp(byte far* page, int x, int y, bitmap_t *bmp, byte sprite) +{ + byte plane; + word px, py; + word offset; + + /* TODO Make this fast. It's SLOOOOOOW */ + for(plane=0; plane < 4; plane++) { + modexSelectPlane(PLANE(plane+x)); + for(px = plane; px < bmp->width; px+=4) { + offset=px; + for(py=0; pyheight; py++) { + if(!sprite || bmp->data[offset]) + page[PAGE_OFFSET(x+px, y+py)] = bmp->data[offset]; + offset+=bmp->width; + } + } + } +} + +void +CDrawBmp(byte far* vgamem, page_t* page, int x, int y, bitmap_t *bmp, byte sprite) +{ + byte plane; + word px, py; + word offset=0; + + + /* TODO Make this fast. It's SLOOOOOOW */ + for(plane=0; plane < 4; plane++) { + modexSelectPlane(PLANE(plane+x)); + for(px = plane; px < bmp->width; px+=4) { + offset=px; + for(py=0; pyheight; py++) { + if(!sprite || bmp->data[offset]) + //modexputPixel(page, x+px, y+py, bmp->data[offset]); + vgamem[PAGE_OFFSET(x+px, y+py)] = bmp->data[offset]; + offset+=bmp->width; + } + } + } +} + +void +modexDrawBmp(page_t *page, int x, int y, bitmap_t *bmp) { + /* draw the region (the entire freakin bitmap) */ + modexDrawBmpRegion(page, x, y, 0, 0, bmp->width, bmp->height, bmp); +} + + +void +modexDrawBmpRegion(page_t *page, int x, int y, + int rx, int ry, int rw, int rh, bitmap_t *bmp) { + word poffset = (word) page->data + y*(page->width/4) + x/4; + byte far *data = bmp->data;//+bmp->offset; + word bmpOffset = (word) data + ry * bmp->width + rx; + word width = rw; + word height = rh; + byte plane = 1 << ((byte) x & 0x03); + word scanCount = width/4 + (width%4 ? 1 :0); + word nextPageRow = page->width/4 - scanCount; + word nextBmpRow = (word) bmp->width - width; + word rowCounter; + byte planeCounter = 4; + +/* printf("bmp->data=%Fp\n",bmp->data); + printf("*bmp->data=%Fp\n",*(bmp->data)); + printf("&bmp->data=%Fp\n",&(bmp->data));*/ + + //code is a bit slow here + __asm { + MOV AX, SCREEN_SEG ; go to the VGA memory + MOV ES, AX + + MOV DX, SC_INDEX ; point at the map mask register + MOV AL, MAP_MASK ; + OUT DX, AL ; + + PLANE_LOOP: + MOV DX, SC_DATA ; select the current plane + MOV AL, plane ; + OUT DX, AL ; + + ;-- begin plane painting + MOV AX, height ; start the row counter + MOV rowCounter, AX ; + MOV DI, poffset ; go to the first pixel + MOV SI, bmpOffset ; go to the bmp pixel + ROW_LOOP: + MOV CX, width ; count the columns + SCAN_LOOP: + MOVSB ; copy the pixel + SUB CX, 3 ; we skip the next 3 + ADD SI, 3 ; skip the bmp pixels + LOOP SCAN_LOOP ; finish the scan + + MOV AX, nextPageRow + ADD DI, AX ; go to the next row on screen + MOV AX, nextBmpRow + ADD SI, AX ; go to the next row on bmp + + DEC rowCounter + JNZ ROW_LOOP ; do all the rows + ;-- end plane painting + + MOV AL, plane ; advance to the next plane + SHL AL, 1 ; + AND AL, 0x0f ; mask the plane properly + MOV plane, AL ; store the plane + + INC bmpOffset ; start bmp at the right spot + + DEC planeCounter + JNZ PLANE_LOOP ; do all 4 planes + } +} + +void +modex_sparky4_DrawBmpRegion(page_t *page, int x, int y, + int rx, int ry, int rw, int rh, bitmap_t *bmp) { + word poffset = (word) page->data + y*(page->width/4) + x/4; + byte far *data = bmp->data;//+bmp->offset; + word bmpOffset = (word) data + ry * bmp->width + rx; + word width = rw; + word height = rh; + byte plane = 1 << ((byte) x & 0x03); + word scanCount = width/4 + (width%4 ? 1 :0); + word nextPageRow = page->width/4 - scanCount; + word nextBmpRow = (word) bmp->width - width; + word rowCounter; + byte planeCounter = 4; + +/* printf("bmp->data=%Fp\n",bmp->data); + printf("*bmp->data=%Fp\n",*(bmp->data)); + printf("&bmp->data=%Fp\n",&(bmp->data));*/ + + //code is a bit slow here + __asm { + MOV AX, SCREEN_SEG ; go to the VGA memory + MOV ES, AX + + MOV DX, SC_INDEX ; point at the map mask register + MOV AL, MAP_MASK ; + OUT DX, AL ; + + PLANE_LOOP: + MOV DX, SC_DATA ; select the current plane + MOV AL, plane ; + OUT DX, AL ; + + ;-- begin plane painting + MOV AX, height ; start the row counter + MOV rowCounter, AX ; + MOV DI, poffset ; go to the first pixel + MOV SI, bmpOffset ; go to the bmp pixel + ROW_LOOP: + MOV CX, width ; count the columns + SCAN_LOOP: + MOVSB ; copy the pixel + SUB CX, 3 ; we skip the next 3 + ADD SI, 3 ; skip the bmp pixels + LOOP SCAN_LOOP ; finish the scan + + MOV AX, nextPageRow + ADD DI, AX ; go to the next row on screen + MOV AX, nextBmpRow + ADD SI, AX ; go to the next row on bmp + + DEC rowCounter + JNZ ROW_LOOP ; do all the rows + ;-- end plane painting + + MOV AL, plane ; advance to the next plane + SHL AL, 1 ; + AND AL, 0x0f ; mask the plane properly + MOV plane, AL ; store the plane + + INC bmpOffset ; start bmp at the right spot + + DEC planeCounter + JNZ PLANE_LOOP ; do all 4 planes + } +} + +void +modexDrawPlanarBuf(page_t *page, int x, int y, planar_buf_t *bmp) { + /* TODO - adapt from test code */ + int plane; + for(plane=0; plane < 4; plane++) + { + //fack + } +} + + +void +modexDrawSprite(page_t *page, int x, int y, bitmap_t *bmp) { + /* draw the whole sprite */ + modexDrawSpriteRegion(page, x, y, 0, 0, bmp->width, bmp->height, bmp); +} + +void +modexDrawSpriteRegion(page_t *page, int x, int y, + int rx, int ry, int rw, int rh, bitmap_t *bmp) { + word poffset = (word)page->data + y*(page->width/4) + x/4; + byte *data = bmp->data;//+bmp->offset; + word bmpOffset = (word) data + ry * bmp->width + rx; + word width = rw; + word height = rh; + byte plane = 1 << ((byte) x & 0x03); + word scanCount = width/4 + (width%4 ? 1 :0); + word nextPageRow = page->width/4 - scanCount; + word nextBmpRow = (word) bmp->width - width; + word rowCounter; + byte planeCounter = 4; + + __asm { + MOV AX, SCREEN_SEG ; go to the VGA memory + MOV ES, AX + + MOV DX, SC_INDEX ; point at the map mask register + MOV AL, MAP_MASK ; + OUT DX, AL ; + + PLANE_LOOP: + MOV DX, SC_DATA ; select the current plane + MOV AL, plane ; + OUT DX, AL ; + + ;-- begin plane painting + MOV AX, height ; start the row counter + MOV rowCounter, AX ; + MOV DI, poffset ; go to the first pixel + MOV SI, bmpOffset ; go to the bmp pixel + ROW_LOOP: + MOV CX, width ; count the columns + SCAN_LOOP: + LODSB + DEC SI + CMP AL, 0 + JNE DRAW_PIXEL ; draw non-zero pixels + + INC DI ; skip the transparent pixel + ADD SI, 1 + JMP NEXT_PIXEL + DRAW_PIXEL: + MOVSB ; copy the pixel + NEXT_PIXEL: + SUB CX, 3 ; we skip the next 3 + ADD SI, 3 ; skip the bmp pixels + LOOP SCAN_LOOP ; finish the scan + + MOV AX, nextPageRow + ADD DI, AX ; go to the next row on screen + MOV AX, nextBmpRow + ADD SI, AX ; go to the next row on bmp + + DEC rowCounter + JNZ ROW_LOOP ; do all the rows + ;-- end plane painting + + MOV AL, plane ; advance to the next plane + SHL AL, 1 ; + AND AL, 0x0f ; mask the plane properly + MOV plane, AL ; store the plane + + INC bmpOffset ; start bmp at the right spot + + DEC planeCounter + JNZ PLANE_LOOP ; do all 4 planes + } +} + + +/* copy a region of video memory from one page to another. + * It assumes that the left edge of the tile is the same on both + * regions and the memory areas do not overlap. + */ +void +modexCopyPageRegion(page_t *dest, page_t *src, + word sx, word sy, + word dx, word dy, + word width, word height) +{ + 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 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 */ + byte rclip[] = {0x0f, 0x01, 0x03, 0x07}; + byte left = lclip[sx&0x03]; + byte right = rclip[(sx+width)&0x03]; + + __asm { + MOV AX, SCREEN_SEG ; work in the vga space + MOV ES, AX ; + MOV DI, doffset ; + MOV SI, soffset ; + + MOV DX, GC_INDEX ; turn off cpu bits + MOV AX, 0008h ; + OUT DX, AX + + MOV AX, SC_INDEX ; point to the mask register + MOV DX, AX ; + MOV AL, MAP_MASK ; + OUT DX, AL ; + INC DX ; + + ROW_START: + PUSH DS + MOV AX, ES + MOV DS, AX + MOV CX, scans ; the number of latches + + MOV AL, left ; do the left column + OUT DX, AL ; + MOVSB ; + DEC CX ; + + MOV AL, 0fh ; do the inner columns + OUT DX, AL + REP MOVSB ; copy the pixels + + MOV AL, right ; do the right column + OUT DX, AL + MOVSB + POP DS + + MOV AX, SI ; go the start of the next row + ADD AX, nextSrcRow ; + MOV SI, AX ; + MOV AX, DI ; + ADD AX, nextDestRow ; + MOV DI, AX ; + + DEC height ; do the rest of the actions + JNZ ROW_START ; + + MOV DX, GC_INDEX+1 ; go back to CPU data + MOV AL, 0ffh ; none from latches + OUT DX, AL ; + } +} + + +/* fade and flash */ +void +modexFadeOn(word fade, byte *palette) { + fadePalette(-fade, 64, 64/fade+1, palette); +} + + +void +modexFadeOff(word fade, byte *palette) { + fadePalette(fade, 0, 64/fade+1, palette); +} + + +void +modexFlashOn(word fade, byte *palette) { + fadePalette(fade, -64, 64/fade+1, palette); +} + + +void +modexFlashOff(word fade, byte *palette) { + fadePalette(-fade, 0, 64/fade+1, palette); +} + + +static void +fadePalette(sbyte fade, sbyte start, word iter, byte *palette) { + word i; + byte dim = start; + + /* handle the case where we just update */ + if(iter == 0) { + modexPalUpdate1(palette); + return; + } + + while(iter > 0) { /* FadeLoop */ + for(i=0; i 127) { + tmppal[i] = 0; + } else if(tmppal[i] > 63) { + tmppal[i] = 63; + } + } + modexPalUpdate1(tmppal); + iter--; + dim += fade; + } +} + + +/* save and load */ +void +modexPalSave(byte *palette) { + int i; + + outp(PAL_READ_REG, 0); /* start at palette entry 0 */ + for(i=0; ipalette; + word w=0; + word q=0; + word qq=0; + static word a[PAL_SIZE]; //palette array of change values! + word z=0, aq=0, aa=0, pp=0; + + modexWaitBorder(); + if((*i)==0) + { + memset(a, -1, sizeof(a)); + outp(PAL_WRITE_REG, 0); /* start at the beginning of palette */ + } + else if(qp==0) + { + q=(*i); + } + else + { + q=(*i); + qq=(*i)/3; +// printf("q: %02d\n", (q)); +// printf("qq: %02d\n", (qq)); + //printf(" (*i)-q=%02d\n", (*i)-q); + outp(PAL_WRITE_REG, qq); /* start at the beginning of palette */ + } + if((*i)0)&&((*i)-q)%3==0 && (p[((*i)-q)]==p[((*i)-q)+3] && p[((*i)-q)+1]==p[((*i)-q)+4] && p[((*i)-q)+2]==p[((*i)-q)+5])) outp(PAL_DATA_REG, p[(*i)-q]); else + if(((((*i)-q)%3==0)) && (p[((*i)-q)]==p[((*i)-q)+3] && p[((*i)-q)+1]==p[((*i)-q)+4] && p[((*i)-q)+2]==p[((*i)-q)+5])) + { + w++; + break; + } + else if(qp>0 && (*i)>=(qp) && (*i)<((qp)+3)) + { + //printf("qp=%d\n", qp); + //printf(" (*i)=%d a[%d]=%d\n", (*i), qp, a[qp]); + printf(" %d's color=%d\n", (*i), (a[qp])-(bmp->offset*3)+qp); + //outp(PAL_DATA_REG, p[((a[qp])-(bmp->offset*3)+qp)]);// fix this shit! + if((*i)+1==(qp)+3){ w++; /*(*i)++;*/ break; } + } + else + { + if(bmp->offset==0 && (*i)<3 && q==0) outp(PAL_DATA_REG, 0); + else + if(qp==0) outp(PAL_DATA_REG, p[(*i)-q]); + else{ //outp(PAL_DATA_REG, p[((*i)-(bmp->offset*3)+qp)]); + printf("p[]=%d qp=%d p[]-qp=%d\n", ((*i)-(bmp->offset*3)), qp, ((*i)-(bmp->offset*3))+qp); } + } + } + //if(qp>0) printf("qp=%d\n", qp); + //if(qp>0) printf(" (*i)=%d\n", (*i)/3); + } + modexWaitBorder(); /* waits one retrace -- less flicker */ + if((*i)>=PAL_SIZE/2 && w==0) + { + for(; (*i)0)&&((*i)-q)%3==0 && (p[((*i)-q)]==p[((*i)-q)+3] && p[((*i)-q)+1]==p[((*i)-q)+4] && p[((*i)-q)+2]==p[((*i)-q)+5])) outp(PAL_DATA_REG, p[(*i)-q]); else + if(((((*i)-q)%3==0)) && (p[((*i)-q)]==p[((*i)-q)+3] && p[((*i)-q)+1]==p[((*i)-q)+4] && p[((*i)-q)+2]==p[((*i)-q)+5])) + { + w++; + break; + } + else if(qp>0 && (*i)>=(qp) && (*i)<((qp)+3)) + { + //printf("qp=%d\n", qp); + //printf(" (*i)=%d a[%d]=%d\n", (*i), qp, a[qp]); + printf(" %d's color=%d\n", (*i), (a[qp]-(bmp->offset*3)+qp)); + //outp(PAL_DATA_REG, p[((a[qp])-(bmp->offset*3)+qp)]);// fix this shit! + if((*i)+1==(qp)+3){ w++; /*(*i)++;*/ break; } + } + else + { + if(qp==0) outp(PAL_DATA_REG, p[(*i)-q]); + else{ //outp(PAL_DATA_REG, p[((*i)-(bmp->offset*3)+qp)]); + printf("p[]=%d qp=%d p[]-qp=%d\n", ((*i)-(bmp->offset*3)), qp, ((*i)-(bmp->offset*3))+qp); } + } + } + //printf(" (*i)=%d\n", (*i)/3); + } + +printf("\nqqqqqqqq\n\n"); + + //palette checker~ + if(q>0 && qp==0) + { + long lq; + long bufSize = (bmp->width * bmp->height); + pp = q; + //printf("1(*i)=%02d\n", (*i)/3); + //printf("1z=%02d\n", z/3); + chkcolor(bmp, &q, &a, &aa, &z, i); + //printf("2(*i)=%02d\n", (*i)/3); + //printf("2z=%02d\n", z/3); + aq=0; +aqpee: + while(aq<=aa) + { +// printf("a[%02d]=(%d)\n", aq, a[aq]); + if(a[aq]==-1) aq++; + else { aqoffset++; break; } + } +//update the image data here! + for(lq=0; lqoffset for this spot! + NO! wwww + */ + + /* + Facking bloody point the values of the changed palette to correct values.... major confusion! wwww + */ + + //(offset/bmp->offset)*bmp->offset + + + //printf("%02d ",bmp->data[lq]+bmp->offset); + //if(lq > 0 && lq%bmp->width==0) printf("\n"); + //printf("%02d_", bmp->data[lq]+bmp->offset); + /*if(bmp->data[lq]+bmp->offset==aq) + { + //printf("%02d", bmp->data[lq]); + //printf("\n%02d\n", bmp->offset); + printf("aq=%02d ", aq); + printf("a[aq]=%02d ", a[aq]); + printf("a[aq]+aqpp=%02d ", a[aq]+aqpp); + printf("a[aq]-aqpp=%02d\n", a[aq]-aqpp); + //bmp->data[lq]=((bmp->data[lq]+bmp->offset)-a[aq]); +//++++ bmp->data[lq]=a[aq]-aqpp; +// printf("_%d ", bmp->data[lq]); + //if(lq > 0 && lq%bmp->width==0) printf("\n"); + } + else if(bmp->data[lq]+bmp->offset < ((*i)/3)-aqpp) + { + if(bmp->data[lq]+bmp->offset >= aq) + { + bmp->data[lq]=(bmp->data[lq]+bmp->offset)-aqpp;//-((z-(*i))/3); + //printf("_%d ", bmp->data[lq]+bmp->offset)-aqpp-((z-(*i))/3); + } + else bmp->data[lq]+=(bmp->offset-aqpp); + }*/ + + //printf("%02d`", bmp->data[lq]); + //if(lq > 0 && lq%bmp->width==0) printf("\n"); + } + +//printf(" aq=%02d\n", aq); +//printf(" aa=%02d\n", aa); + + //update the palette~ + modexPalUpdate(bmp, &pp, aq, aqoffset); + (*i)=pp; + + if(aqdata; + /* Each address accesses four neighboring pixels, so set + Write Plane Enable according to which pixel we want + to modify. The plane is determined by the two least + significant bits of the x-coordinate: */ + modexSelectPlane(PLANE(x)); + //outp(SC_INDEX, 0x02); + //outp(SC_DATA, 0x01 << (x & 3)); + + /* The offset of the pixel into the video segment is + offset = (width * y + x) / 4, and write the given + color to the plane we selected above. Heed the active + page start selection. */ + VGA[(unsigned)((page->width/4) * y) + (x / 4) + pageOff] = color; + +} + +byte modexgetPixel(page_t *page, int x, int y) +{ + word pageOff = (word) page->data; + /* Select the plane from which we must read the pixel color: */ + outpw(GC_INDEX, 0x04); + outpw(GC_INDEX+1, x & 3); + + return VGA[(unsigned)((page->width/4) * y) + (x / 4) + pageOff]; + +} + +void modexhlin(page_t *page, word xl, word xh, word y, word color) +{ + word x; + word yy=0; + + for(x=0;x=SCREEN_WIDTH-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) +{ + word i, s, o, w, j, xp; + byte l[1024]; + word addr = (word) l; + word chw=0; + byte c; + + switch(t) + { + case 0: + w=14; + break; + case 1: + w=8; + break; + case 2: + w=8; + break; + case 3: + w=16; + break; + default: + t=3; + w=16; + break; + } + + s=romFonts[t].seg; + o=romFonts[t].off; + + for(; *str != '\0'; str++) + { + c = (*str); + if((c=='\n'/* || c=="\ +"*/) || chw +>=page->width) + { + chw=0; + y+=w; + 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 + } + + for(i=0; i>=1; + } + } + chw += xp; + } +} + +void modexprintbig(page_t *page, word x, word y, word t, word col, word bgcol, const byte *str) +{ + word i, s, o, w, j, xp; + byte l[1024]; + word addr = (word) l; + word chw=0; + byte c; + + switch(t) + { + case 0: + w=14; + break; + case 1: + w=8; + break; + case 2: + w=8; + break; + case 3: + w=16; + break; + default: + t=3; + w=16; + break; + } + + s=romFonts[t].seg; + o=romFonts[t].off; + + for(; *str != '\0'; str++) + { + c = (*str); + if((c=='\n'/* || c=="\ +"*/)/* || chw>=page->width*/) + { + chw=0; + y+=w; + 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 + } + + for(i=0; i>=1; + } + } + chw += xp; + } +} + +///////////////////////////////////////////////////////////////////////////// +// // +// cls() - This clears the screen to the specified color, on the VGA or on // +// the Virtual screen. // +// // +///////////////////////////////////////////////////////////////////////////// +void cls(page_t *page, byte color, byte *Where) +{ + //modexClearRegion(page, 0, 0, page->width, page->height, color); + /* set map mask to all 4 planes */ + outpw(SC_INDEX, 0xff02); + //_fmemset(VGA, color, 16000); + _fmemset(Where, color, page->width*(page->height)); +} + +void +modexWaitBorder() { + while(inp(INPUT_STATUS_1) & 8) { + /* spin */ + } + + while(!(inp(INPUT_STATUS_1) & 8)) { + /* spin */ + } +}