X-Git-Url: http://4ch.mooo.com/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fmodex16.c;h=cd56390b3a5fcf7c95275cc75086dc44078ce60c;hb=415ffb75c84f777d2ce7e3501079823aa544d63f;hp=e184dc1e2e0e4d251b7c17bb866cd3b039dddde7;hpb=e8a8ba36af9d47236981affa02532faf42bf304d;p=16.git diff --git a/src/lib/modex16.c b/src/lib/modex16.c index e184dc1e..cd56390b 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; ///////////////////////////////////////////////////////////////////////////// // // @@ -46,24 +45,16 @@ void VGAmodeX(sword vq, global_game_variables_t *gv) // 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; + in.h.al = gv->video.old_mode; int86(0x10, &in, &out); break; - case 1: // init the video + default: // init the video // get old video mode - in.h.ah = 0xf; - int86(0x10, &in, &out); - gv->old_mode = out.h.al; + //in.h.ah = 0xf; + //int86(0x10, &in, &out); + gv->video.old_mode = vgaGetMode();//out.h.al; // enter mode - modex__320x240_256__Enter(gv); - break; - case 2: // init the video - // get old video mode - in.h.ah = 0xf; - int86(0x10, &in, &out); - gv->old_mode = out.h.al; - // enter mode - modex__256x192_256__Enter(gv); + modexEnter(vq, gv); break; } } @@ -78,55 +69,109 @@ vgaSetMode(byte 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 */ +//--------------------------------------------------- +// +// Use the bios to get the current video mode +// - int CRTParmCount = sizeof(ModeX_320x240regs) / sizeof(ModeX_320x240regs[0]); - /* width and height */ - //TODO WWWW - - /* common mode X initiation stuff~ */ - modexsetBaseXMode(); +long +vgaGetMode() +{ + union REGS rg; - /* send the CRTParms */ - for(i=0; ivideo.page); - int CRTParmCount = sizeof(ModeX_256x192regs) / sizeof(ModeX_256x192regs[0]); - /* width and height */ - //TODO WWWW + 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=192; + gv->video.page[0].sh=144; + + /* 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=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) } void @@ -140,7 +185,7 @@ modexLeave() { // 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) { word temp; /* TODO save current video mode and palette */ @@ -167,17 +212,25 @@ modexsetBaseXMode(void) } 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; @@ -375,7 +428,6 @@ 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) { @@ -444,10 +496,27 @@ 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; @@ -458,11 +527,6 @@ 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 @@ -484,7 +548,17 @@ 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 @@ -508,30 +582,13 @@ 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; @@ -599,7 +656,6 @@ 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. @@ -1142,7 +1198,7 @@ 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); @@ -1298,6 +1354,21 @@ 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