X-Git-Url: http://4ch.mooo.com/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fmodex16.c;h=5cec70c919a773f2332ee697b7da5937da3c1ff7;hb=5d052fa67f70bfa48bdd3cc1db3ba15802ec27c9;hp=ea61e718c3cc916a476a081539b8818235bd4e1b;hpb=3b3532b173704f75e3079dd5d4effea885ab493d;p=16.git diff --git a/src/lib/modex16.c b/src/lib/modex16.c index ea61e718..5cec70c9 100755 --- a/src/lib/modex16.c +++ b/src/lib/modex16.c @@ -29,7 +29,6 @@ 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; ///////////////////////////////////////////////////////////////////////////// // // @@ -40,23 +39,23 @@ 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); + switch (vq) + { + case 0: // 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->video.old_mode; + int86(0x10, &in, &out); + break; + default: // init the video + // get old video mode + //in.h.ah = 0xf; + //int86(0x10, &in, &out); + gv->video.old_mode = vgaGetMode();//out.h.al; + // enter mode + modexEnter(vq, gv); + break; } } @@ -70,61 +69,132 @@ vgaSetMode(byte mode) int86(VIDEO_INT, ®s, ®s); } +//--------------------------------------------------- +// +// Use the bios to get the current video mode +// + +long +vgaGetMode() +{ + union REGS rg; + + rg.h.ah = 0x0f; + int86(VIDEO_INT, &rg, &rg); + + return rg.h.al; +} + /* -========================= Entry Points ==========================- */ void -modex__320x240_256__Enter(global_game_variables_t *gv) +modexEnter(sword vq, 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 + int CRTParmCount; + /* common mode X initiation stuff~ */ + modexsetBaseXMode(gv->video.page); - /* disable chain4 mode */ - outpw(SC_INDEX, 0x0604); + switch(vq) + { + case 1: + CRTParmCount = sizeof(ModeX_320x240regs) / sizeof(ModeX_320x240regs[0]); + /* width and height */ + gv->video.page[0].sw=320; + gv->video.page[0].sh=240; + + /* send the CRTParms */ + for(i=0; ivideo.page[0].sw=120; + gv->video.page[0].sh=160; + + /* send the CRTParms */ + for(i=0; ivideo.page[0].sw=320; + gv->video.page[0].sh=200; + + /* send the CRTParms */ + for(i=0; ivideo.page[0].sw=192; + gv->video.page[0].sh=144; + + /* send the CRTParms */ + for(i=0; ivideo.page[0].sw=256; + gv->video.page[0].sh=192; + + /* send the CRTParms */ + for(i=0; ivideo.page[0].tilesw = gv->video.page[0].sw/TILEWH; + gv->video.page[0].tilesh = 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) +} - /* clear video memory */ - outpw(SC_INDEX, 0x0f02); - for(i=0; i<0x8000; i++) { - ptr[i] = 0x0000; - } +void +modexLeave() { + /* TODO restore original mode and palette */ + vgaSetMode(TEXT_MODE); } // setBaseXMode() does the initialization to make the VGA ready to @@ -132,38 +202,52 @@ modex__320x240_256__Enter(global_game_variables_t *gv) // 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(void) +modexsetBaseXMode(page_t *page) { - int temp; - + word temp; /* TODO save current video mode and palette */ vgaSetMode(VGA_256_COLOR_MODE); - outp(CRTC_INDEX, 0x11); - temp = inp(CRTC_DATA) & 0x7F; - outp(CRTC_INDEX, 0x11); - outp(CRTC_DATA, temp); -} + /* disable chain4 mode */ + outpw(SC_INDEX, 0x0604); -void -modexLeave() { - /* TODO restore original mode and palette */ - vgaSetMode(TEXT_MODE); -} + /* 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 */ +// temp = inp(CRTC_DATA) & 0x7F; +// outp(CRTC_INDEX, 0x11); + outp(CRTC_DATA, 0x7f); /* get current write protect on varios regs */ +// outp(CRTC_DATA, temp); /* get current write protect on varios regs */ +} page_t -modexDefaultPage() { +modexDefaultPage(page_t *p) +{ page_t page; /* default page values */ page.data = VGA; page.dx = 0; page.dy = 0; - page.width = SCREEN_WIDTH; - page.height = SCREEN_HEIGHT; - page.tw = page.width/TILEWH; - page.th = page.height/TILEWH; + page.sw = p->sw; + page.sh = p->sh; + page.width = p->sw; + page.height = p->sh; + page.tw = page.sw/TILEWH; + page.th = page.sh/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.id = 0; return page; @@ -310,35 +394,98 @@ modexClearRegion(page_t *page, int x, int y, int w, int h, byte color) { } } - -void -oldDrawBmp(byte far* page, int x, int y, bitmap_t *bmp, byte sprite) +//TODO! ADD CLIPPING!! +//void +//modexDrawBmpRegion (page_t *page, int x, int y, int rx, int ry, int rw, int rh, bitmap_t *bmp) +void modexDrawPBufRegion (page_t *page, int x, int y, int rx, int ry, int rw, int rh, planar_buf_t *p, boolean sprite) { - byte plane; - word px, py; - word offset; - - /* TODO Make this fast. It's SLOOOOOOW */ + int plane; + int px, py, i; +// byte near *buff; + px=x; + py=y; +// buff = _nmalloc(p->pwidth+1); + // TODO Make this fast. It's SLOOOOOOW +// for(plane=0; plane < 4; plane++) { +// i=0; +// modexSelectPlane(PLANE(plane+x)); +// for(px = plane; px < p->width; px+=4) { +// offset=px; +// for(py=0; pyheight/2; py++) { +// //SELECT_ALL_PLANES(); +// if(!sprite || p->plane[offset]) +// page->data = &(p->plane[offset][i++]); +// offset+=p->width; +// offset++; +// } +// } +// } for(plane=0; plane < 4; plane++) { + i=(rx/4)+((rx/4)*ry); 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; - } + for(; y < py+p->height; y++) { + //for(px=0; px < p->width; px++) { + //printf("%02X ", (int) p->plane[plane][i++]); +// _fmemcpy(buff, &(p->plane[plane][i+=p->pwidth]), p->pwidth); +// printf("buff %u==%s\n", y, *buff); +// _fmemcpy(page->data + (((page->width/4) * (y+page->dy)) + ((x+page->dx) / 4)), buff, p->pwidth); + _fmemcpy(page->data + (((page->width/4) * (y+page->dy)) + ((x+page->dx) / 4)), &(p->plane[plane][i+=p->pwidth]), p->pwidth); + //} } + x=px; + y=py; } +// _nfree(buff); } +/*void +DrawPBuf(page_t *page, int x, int y, planar_buf_t *p, boolean sprite) +{ + int plane; + int px, py, i; +// byte near *buff; + px=x; + py=y; +// buff = _nmalloc(p->pwidth+1); + // TODO Make this fast. It's SLOOOOOOW +// for(plane=0; plane < 4; plane++) { +// i=0; +// modexSelectPlane(PLANE(plane+x)); +// for(px = plane; px < p->width; px+=4) { +// offset=px; +// for(py=0; pyheight/2; py++) { +// //SELECT_ALL_PLANES(); +// if(!sprite || p->plane[offset]) +// page->data = &(p->plane[offset][i++]); +// offset+=p->width; +// offset++; +// } +// } +// } + for(plane=0; plane < 4; plane++) { + i=0; + modexSelectPlane(PLANE(plane+x)); + for(; y < py+p->height; y++) { + //for(px=0; px < p->width; px++) { + //printf("%02X ", (int) p->plane[plane][i++]); +// _fmemcpy(buff, &(p->plane[plane][i+=p->pwidth]), p->pwidth); +// printf("buff %u==%s\n", y, *buff); +// _fmemcpy(page->data + (((page->width/4) * (y+page->dy)) + ((x+page->dx) / 4)), buff, p->pwidth); + _fmemcpy(page->data + (((page->width/4) * (y+page->dy)) + ((x+page->dx) / 4)), &(p->plane[plane][i+=p->pwidth]), p->pwidth); + //} + } + x=px; + y=py; + } +// _nfree(buff); +}*/ + void -CDrawBmp(byte far* vgamem, page_t* page, int x, int y, bitmap_t *bmp, byte sprite) +oldDrawBmp(byte far* page, int x, int y, bitmap_t *bmp, byte sprite) { byte plane; word px, py; - word offset=0; - + word offset; /* TODO Make this fast. It's SLOOOOOOW */ for(plane=0; plane < 4; plane++) { @@ -347,8 +494,7 @@ CDrawBmp(byte far* vgamem, page_t* page, int x, int y, bitmap_t *bmp, byte sprit 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]; + page[PAGE_OFFSET(x+px, y+py)] = bmp->data[offset]; offset+=bmp->width; } } @@ -361,7 +507,6 @@ modexDrawBmp(page_t *page, int x, int y, bitmap_t *bmp) { 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) { @@ -430,10 +575,27 @@ modexDrawBmpRegion(page_t *page, int x, int y, } 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; +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; @@ -444,11 +606,6 @@ modex_sparky4_DrawBmpRegion(page_t *page, int x, int y, 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 @@ -470,7 +627,17 @@ modex_sparky4_DrawBmpRegion(page_t *page, int x, int y, 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 @@ -494,30 +661,13 @@ modex_sparky4_DrawBmpRegion(page_t *page, int x, int y, 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); -} +}//backup!*/ 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; + byte huge *data = bmp->data;//+bmp->offset; word bmpOffset = (word) data + ry * bmp->width + rx; word width = rw; word height = rh; @@ -585,7 +735,6 @@ modexDrawSpriteRegion(page_t *page, int x, int y, } } - /* 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. @@ -1001,6 +1150,14 @@ modexPalUpdate0(byte *p) } } +void +modexPalOverscan(byte *p, word col) +{ + modexWaitBorder(); + 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*/) @@ -1128,7 +1285,7 @@ void modexhlin(page_t *page, word xl, word xh, word y, word color) for(x=0;x=SCREEN_WIDTH-1){ x=0; yy+=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); @@ -1141,6 +1298,7 @@ void modexprint(page_t *page, word x, word y, word t, word col, word bgcol, cons word addr = (word) l; word chw=0; byte c; + //byte near *bakapee; switch(t) { @@ -1193,9 +1351,14 @@ void modexprint(page_t *page, word x, word y, word t, word col, word bgcol, cons DEC CX JNZ L1 } - + //bakapee = _nmalloc(sizeof(byte)*8); +//TODO: OPTIMIZE THIS!!!! for(i=0; idata + (((page->width/4) * (y+page->dy+i)) + ((x+page->dx+chw) / 4)), bakapee, 8);*/ j=1<<8; xp=0; while(j) @@ -1207,6 +1370,7 @@ void modexprint(page_t *page, word x, word y, word t, word col, word bgcol, cons } chw += xp; } + //_nfree(bakapee); } void modexprintbig(page_t *page, word x, word y, word t, word col, word bgcol, const byte *str) @@ -1284,6 +1448,21 @@ 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) +{ + int mult=(QUADWH); + int palq=(mult)*TILEWH; + int palcol=0; + int palx, paly; + for(paly=0; paly