--- /dev/null
+#include <dos.h>\r
+#include <string.h>\r
+#include <mem.h>\r
+#include <conio.h>\r
+#include <stdio.h>\r
+#include <stdlib.h>\r
+#include "16/src/lib/omodex16.h"\r
+\r
+\r
+byte far* VGA=(byte far*) 0xA0000000; /* this points to video memory. */\r
+\r
+static void fadePalette(sbyte fade, sbyte start, word iter, byte *palette);\r
+static byte tmppal[PAL_SIZE];\r
+\r
+static void\r
+vgaSetMode(byte mode)\r
+{\r
+ union REGS regs;\r
+\r
+ regs.h.ah = SET_MODE;\r
+ regs.h.al = mode;\r
+ int86(VIDEO_INT, ®s, ®s);\r
+}\r
+\r
+\r
+/* -========================= Entry Points ==========================- */\r
+void\r
+omodexEnter() {\r
+ word i;\r
+ dword far*ptr=(dword far*)VGA; /* used for faster screen clearing */\r
+ word CRTParms[] = {\r
+ 0x0d06, /* vertical total */\r
+ 0x3e07, /* overflow (bit 8 of vertical counts) */\r
+ 0x4109, /* cell height (2 to double-scan */\r
+ 0xea10, /* v sync start */\r
+ 0xac11, /* v sync end and protect cr0-cr7 */\r
+ 0xdf12, /* vertical displayed */\r
+ 0x0014, /* turn off dword mode */\r
+ 0xe715, /* v blank start */\r
+ 0x0616, /* v blank end */\r
+ 0xe317 /* turn on byte mode */\r
+ };\r
+ int CRTParmCount = sizeof(CRTParms) / sizeof(CRTParms[0]);\r
+\r
+ /* TODO save current video mode and palette */\r
+ vgaSetMode(VGA_256_COLOR_MODE);\r
+\r
+ /* disable chain4 mode */\r
+ outpw(SC_INDEX, 0x0604);\r
+\r
+ /* synchronous reset while setting Misc Output */\r
+ outpw(SC_INDEX, 0x0100);\r
+\r
+ /* select 25 MHz dot clock & 60 Hz scanning rate */\r
+ outp(MISC_OUTPUT, 0xe3);\r
+\r
+ /* undo reset (restart sequencer) */\r
+ outpw(SC_INDEX, 0x0300);\r
+\r
+ /* reprogram the CRT controller */\r
+ outp(CRTC_INDEX, 0x11); /* VSync End reg contains register write prot */\r
+ outp(CRTC_DATA, 0x7f); /* get current write protect on varios regs */\r
+\r
+ /* send the CRTParms */\r
+ for(i=0; i<CRTParmCount; i++) {\r
+ outpw(CRTC_INDEX, CRTParms[i]);\r
+ }\r
+\r
+ /* clear video memory */\r
+ outpw(SC_INDEX, 0x0f02);\r
+ for(i=0; i<0x8000; i++) {\r
+ ptr[i] = 0x0000;\r
+ }\r
+}\r
+\r
+\r
+void\r
+omodexLeave() {\r
+ /* TODO restore original mode and palette */\r
+ vgaSetMode(TEXT_MODE);\r
+}\r
+\r
+\r
+opage_t\r
+omodexDefaultPage() {\r
+ opage_t page;\r
+\r
+ /* default page values */\r
+ page.data = VGA;\r
+ page.dx = 0;\r
+ page.dy = 0;\r
+ page.width = SCREEN_WIDTH;\r
+ page.height = SCREEN_HEIGHT;\r
+\r
+ return page;\r
+}\r
+\r
+/* returns the next page in contiguous memory\r
+ * the next page will be the same size as p, by default\r
+ */\r
+opage_t\r
+omodexNextPage(opage_t *p) {\r
+ opage_t result;\r
+\r
+ result.data = p->data + (p->width/4)*p->height; /* compute the offset */\r
+ result.dx = 0;\r
+ result.dy = 0;\r
+ result.width = p->width;\r
+ result.height = p->height;\r
+\r
+ return result;\r
+}\r
+\r
+\r
+void\r
+omodexShowPage(opage_t *page) {\r
+ word high_address;\r
+ word low_address;\r
+ word offset;\r
+ byte crtcOffset;\r
+\r
+ /* calculate offset */\r
+ offset = (word) page->data;\r
+ offset += page->dy * (page->width >> 2 );\r
+ offset += page->dx >> 2;\r
+\r
+ /* calculate crtcOffset according to virtual width */\r
+ crtcOffset = page->width >> 3;\r
+\r
+ high_address = HIGH_ADDRESS | (offset & 0xff00);\r
+ low_address = LOW_ADDRESS | (offset << 8);\r
+\r
+ /* wait for appropriate timing and then program CRTC */\r
+ while ((inp(INPUT_STATUS_1) & DISPLAY_ENABLE));\r
+ outpw(CRTC_INDEX, high_address);\r
+ outpw(CRTC_INDEX, low_address);\r
+ outp(CRTC_INDEX, 0x13);\r
+ outp(CRTC_DATA, crtcOffset);\r
+\r
+ /* wait for one retrace */\r
+ while (!(inp(INPUT_STATUS_1) & VRETRACE));\r
+\r
+ /* do PEL panning here */\r
+ outp(AC_INDEX, 0x33);\r
+ outp(AC_INDEX, (page->dx & 0x03) << 1);\r
+}\r
+\r
+\r
+void\r
+omodexPanPage(opage_t *page, int dx, int dy) {\r
+ page->dx = dx;\r
+ page->dy = dy;\r
+}\r
+\r
+\r
+void\r
+omodexSelectPlane(byte plane) {\r
+ outp(SC_INDEX, MAP_MASK); /* select plane */\r
+ outp(SC_DATA, plane);\r
+}\r
+\r
+\r
+void\r
+omodexClearRegion(opage_t *page, int x, int y, int w, int h, byte color) {\r
+ word pageOff = (word) page->data;\r
+ word xoff=x/4; /* xoffset that begins each row */\r
+ word scanCount=w/4; /* number of iterations per row (excluding right clip)*/\r
+ word poffset = pageOff + y*(page->width/4) + xoff; /* starting offset */\r
+ word nextRow = page->width/4-scanCount-1; /* loc of next row */\r
+ byte lclip[] = {0x0f, 0x0e, 0x0c, 0x08}; /* clips for rectangles not on 4s */\r
+ byte rclip[] = {0x00, 0x01, 0x03, 0x07};\r
+ byte left = lclip[x&0x03];\r
+ byte right = rclip[(x+w)&0x03];\r
+\r
+ /* handle the case which requires an extra group */\r
+ if((x & 0x03) && !((x+w) & 0x03)) {\r
+ right=0x0f;\r
+ }\r
+\r
+ __asm {\r
+ MOV AX, SCREEN_SEG ; go to the VGA memory\r
+ MOV ES, AX\r
+ MOV DI, poffset ; go to the first pixel\r
+ MOV DX, SC_INDEX ; point to the map mask\r
+ MOV AL, MAP_MASK\r
+ OUT DX, AL\r
+ INC DX\r
+ MOV AL, color ; get ready to write colors\r
+ SCAN_START:\r
+ MOV CX, scanCount ; count the line\r
+ MOV BL, AL ; remember color\r
+ MOV AL, left ; do the left clip\r
+ OUT DX, AL ; set the left clip\r
+ MOV AL, BL ; restore color\r
+ STOSB ; write the color\r
+ DEC CX\r
+ JZ SCAN_DONE ; handle 1 group stuff\r
+\r
+ ;-- write the main body of the scanline\r
+ MOV BL, AL ; remember color\r
+ MOV AL, 0x0f ; write to all pixels\r
+ OUT DX, AL\r
+ MOV AL, BL ; restore color\r
+ REP STOSB ; write the color\r
+ SCAN_DONE:\r
+ MOV BL, AL ; remeber color\r
+ MOV AL, right\r
+ OUT DX, AL ; do the right clip\r
+ MOV AL, BL ; restore color\r
+ STOSB ; write pixel\r
+ ADD DI, nextRow ; go to the next row\r
+ DEC h\r
+ JNZ SCAN_START\r
+ }\r
+}\r
+\r
+\r
+void\r
+omodexDrawBmp(opage_t *page, int x, int y, bitmap_t *bmp) {\r
+ /* draw the region (the entire freakin bitmap) */\r
+ omodexDrawBmpRegion(page, x, y, 0, 0, bmp->width, bmp->height, bmp);\r
+}\r
+\r
+\r
+void\r
+omodexDrawBmpRegion(opage_t *page, int x, int y,\r
+ int rx, int ry, int rw, int rh, bitmap_t *bmp) {\r
+ word poffset = (word) page->data + y*(page->width/4) + x/4;\r
+ byte *data = bmp->data;\r
+ word bmpOffset = (word) data + ry * bmp->width + rx;\r
+ word width = rw;\r
+ word height = rh;\r
+ byte plane = 1 << ((byte) x & 0x03);\r
+ word scanCount = width/4 + (width%4 ? 1 :0);\r
+ word nextPageRow = page->width/4 - scanCount;\r
+ word nextBmpRow = (word) bmp->width - width;\r
+ word rowCounter=0;\r
+ byte planeCounter = 4;\r
+\r
+ __asm {\r
+ MOV AX, SCREEN_SEG ; go to the VGA memory\r
+ MOV ES, AX\r
+\r
+ MOV DX, SC_INDEX ; point at the map mask register\r
+ MOV AL, MAP_MASK ;\r
+ OUT DX, AL ;\r
+\r
+ PLANE_LOOP:\r
+ MOV DX, SC_DATA ; select the current plane\r
+ MOV AL, plane ;\r
+ OUT DX, AL ;\r
+\r
+ ;-- begin plane painting\r
+ MOV AX, height ; start the row counter\r
+ MOV rowCounter, AX ;\r
+ MOV DI, poffset ; go to the first pixel\r
+ MOV SI, bmpOffset ; go to the bmp pixel\r
+ ROW_LOOP:\r
+ MOV CX, width ; count the columns\r
+ SCAN_LOOP:\r
+ MOVSB ; copy the pixel\r
+ SUB CX, 3 ; we skip the next 3\r
+ ADD SI, 3 ; skip the bmp pixels\r
+ LOOP SCAN_LOOP ; finish the scan\r
+\r
+ MOV AX, nextPageRow\r
+ ADD DI, AX ; go to the next row on screen\r
+ MOV AX, nextBmpRow\r
+ ADD SI, AX ; go to the next row on bmp\r
+\r
+ DEC rowCounter\r
+ JNZ ROW_LOOP ; do all the rows\r
+ ;-- end plane painting\r
+\r
+ MOV AL, plane ; advance to the next plane\r
+ SHL AL, 1 ;\r
+ AND AL, 0x0f ; mask the plane properly\r
+ MOV plane, AL ; store the plane\r
+\r
+ INC bmpOffset ; start bmp at the right spot\r
+\r
+ DEC planeCounter\r
+ JNZ PLANE_LOOP ; do all 4 planes\r
+ }\r
+}\r
+\r
+\r
+void\r
+omodexDrawSprite(opage_t *page, int x, int y, bitmap_t *bmp) {\r
+ /* draw the whole sprite */\r
+ omodexDrawSpriteRegion(page, x, y, 0, 0, bmp->width, bmp->height, bmp);\r
+}\r
+\r
+void\r
+omodexDrawSpriteRegion(opage_t *page, int x, int y,\r
+ int rx, int ry, int rw, int rh, bitmap_t *bmp) {\r
+ word poffset = (word)page->data + y*(page->width/4) + x/4;\r
+ byte *data = bmp->data;\r
+ word bmpOffset = (word) data + ry * bmp->width + rx;\r
+ word width = rw;\r
+ word height = rh;\r
+ byte plane = 1 << ((byte) x & 0x03);\r
+ word scanCount = width/4 + (width%4 ? 1 :0);\r
+ word nextPageRow = page->width/4 - scanCount;\r
+ word nextBmpRow = (word) bmp->width - width;\r
+ word rowCounter=0;\r
+ byte planeCounter = 4;\r
+\r
+ __asm {\r
+ MOV AX, SCREEN_SEG ; go to the VGA memory\r
+ MOV ES, AX\r
+\r
+ MOV DX, SC_INDEX ; point at the map mask register\r
+ MOV AL, MAP_MASK ;\r
+ OUT DX, AL ;\r
+\r
+ PLANE_LOOP:\r
+ MOV DX, SC_DATA ; select the current plane\r
+ MOV AL, plane ;\r
+ OUT DX, AL ;\r
+\r
+ ;-- begin plane painting\r
+ MOV AX, height ; start the row counter\r
+ MOV rowCounter, AX ;\r
+ MOV DI, poffset ; go to the first pixel\r
+ MOV SI, bmpOffset ; go to the bmp pixel\r
+ ROW_LOOP:\r
+ MOV CX, width ; count the columns\r
+ SCAN_LOOP:\r
+ LODSB\r
+ DEC SI\r
+ CMP AL, 0\r
+ JNE DRAW_PIXEL ; draw non-zero pixels\r
+\r
+ INC DI ; skip the transparent pixel\r
+ ADD SI, 1\r
+ JMP NEXT_PIXEL\r
+ DRAW_PIXEL:\r
+ MOVSB ; copy the pixel\r
+ NEXT_PIXEL:\r
+ SUB CX, 3 ; we skip the next 3\r
+ ADD SI, 3 ; skip the bmp pixels\r
+ LOOP SCAN_LOOP ; finish the scan\r
+\r
+ MOV AX, nextPageRow\r
+ ADD DI, AX ; go to the next row on screen\r
+ MOV AX, nextBmpRow\r
+ ADD SI, AX ; go to the next row on bmp\r
+\r
+ DEC rowCounter\r
+ JNZ ROW_LOOP ; do all the rows\r
+ ;-- end plane painting\r
+\r
+ MOV AL, plane ; advance to the next plane\r
+ SHL AL, 1 ;\r
+ AND AL, 0x0f ; mask the plane properly\r
+ MOV plane, AL ; store the plane\r
+\r
+ INC bmpOffset ; start bmp at the right spot\r
+\r
+ DEC planeCounter\r
+ JNZ PLANE_LOOP ; do all 4 planes\r
+ }\r
+}\r
+\r
+\r
+/* copy a region of video memory from one page to another.\r
+ * It assumes that the left edge of the tile is the same on both\r
+ * regions and the memory areas do not overlap.\r
+ */\r
+void\r
+omodexCopyPageRegion(opage_t *dest, opage_t *src,\r
+ word sx, word sy,\r
+ word dx, word dy,\r
+ word width, word height)\r
+{\r
+ word doffset = (word)dest->data + dy*(dest->width/4) + dx/4;\r
+ word soffset = (word)src->data + sy*(src->width/4) + sx/4;\r
+ word scans = width/4;\r
+ word nextSrcRow = src->width/4 - scans - 1;\r
+ word nextDestRow = dest->width/4 - scans - 1;\r
+ byte lclip[] = {0x0f, 0x0e, 0x0c, 0x08}; /* clips for rectangles not on 4s */\r
+ byte rclip[] = {0x0f, 0x01, 0x03, 0x07};\r
+ byte left = lclip[sx&0x03];\r
+ byte right = rclip[(sx+width)&0x03];\r
+\r
+ __asm {\r
+ MOV AX, SCREEN_SEG ; work in the vga space\r
+ MOV ES, AX ;\r
+ MOV DI, doffset ;\r
+ MOV SI, soffset ;\r
+\r
+ MOV DX, GC_INDEX ; turn off cpu bits\r
+ MOV AX, 0008h ;\r
+ OUT DX, AX\r
+\r
+ MOV AX, SC_INDEX ; point to the mask register\r
+ MOV DX, AX ;\r
+ MOV AL, MAP_MASK ;\r
+ OUT DX, AL ;\r
+ INC DX ;\r
+\r
+ ROW_START:\r
+ PUSH DS\r
+ MOV AX, ES\r
+ MOV DS, AX\r
+ MOV CX, scans ; the number of latches\r
+\r
+ MOV AL, left ; do the left column\r
+ OUT DX, AL ;\r
+ MOVSB ;\r
+ DEC CX ;\r
+\r
+ MOV AL, 0fh ; do the inner columns\r
+ OUT DX, AL\r
+ REP MOVSB ; copy the pixels\r
+\r
+ MOV AL, right ; do the right column\r
+ OUT DX, AL\r
+ MOVSB\r
+ POP DS\r
+\r
+ MOV AX, SI ; go the start of the next row\r
+ ADD AX, nextSrcRow ;\r
+ MOV SI, AX ;\r
+ MOV AX, DI ;\r
+ ADD AX, nextDestRow ;\r
+ MOV DI, AX ;\r
+\r
+ DEC height ; do the rest of the actions\r
+ JNZ ROW_START ;\r
+\r
+ MOV DX, GC_INDEX+1 ; go back to CPU data\r
+ MOV AL, 0ffh ; none from latches\r
+ OUT DX, AL ;\r
+ }\r
+}\r
+\r
+\r
+/* fade and flash */\r
+void\r
+omodexFadeOn(word fade, byte *palette) {\r
+ fadePalette(-fade, 64, 64/fade+1, palette);\r
+}\r
+\r
+\r
+void\r
+omodexFadeOff(word fade, byte *palette) {\r
+ fadePalette(fade, 0, 64/fade+1, palette);\r
+}\r
+\r
+\r
+void\r
+omodexFlashOn(word fade, byte *palette) {\r
+ fadePalette(fade, -64, 64/fade+1, palette);\r
+}\r
+\r
+\r
+void\r
+omodexFlashOff(word fade, byte *palette) {\r
+ fadePalette(-fade, 0, 64/fade+1, palette);\r
+}\r
+\r
+\r
+static void\r
+fadePalette(sbyte fade, sbyte start, word iter, byte *palette) {\r
+ word i;\r
+ byte dim = start;\r
+\r
+ /* handle the case where we just update */\r
+ if(iter == 0) {\r
+ omodexPalUpdate(palette);\r
+ return;\r
+ }\r
+\r
+ while(iter > 0) { /* FadeLoop */\r
+ for(i=0; i<PAL_SIZE; i++) { /* loadpal_loop */\r
+ tmppal[i] = palette[i] - dim;\r
+ if(tmppal[i] > 127) {\r
+ tmppal[i] = 0;\r
+ } else if(tmppal[i] > 63) {\r
+ tmppal[i] = 63;\r
+ }\r
+ }\r
+ omodexPalUpdate(tmppal);\r
+ iter--;\r
+ dim += fade;\r
+ }\r
+}\r
+\r
+\r
+/* save and load */\r
+void\r
+omodexPalSave(byte *palette) {\r
+ int i;\r
+\r
+ outp(PAL_READ_REG, 0); /* start at palette entry 0 */\r
+ for(i=0; i<PAL_SIZE; i++) {\r
+ palette[i] = inp(PAL_DATA_REG); /* read the palette data */\r
+ }\r
+}\r
+\r
+\r
+byte *\r
+omodexNewPal() {\r
+ byte *ptr;\r
+ ptr = malloc(PAL_SIZE);\r
+\r
+ /* handle errors */\r
+ if(!ptr) {\r
+ printf("Could not allocate palette.\n");\r
+ exit(-1);\r
+ }\r
+\r
+ return ptr;\r
+}\r
+\r
+\r
+void\r
+omodexLoadPalFile(byte *filename, byte **palette) {\r
+ FILE *file;\r
+ byte *ptr;\r
+\r
+ /* free the palette if it exists */\r
+ if(*palette) {\r
+ free(*palette);\r
+ }\r
+\r
+ /* allocate the new palette */\r
+ *palette = omodexNewPal();\r
+\r
+ /* open the file */\r
+ file = fopen(filename, "rb");\r
+ if(!file) {\r
+ printf("Could not open palette file: %s\n", filename);\r
+ exit(-2);\r
+ }\r
+\r
+ /* read the file */\r
+ ptr = *palette;\r
+ while(!feof(file)) {\r
+ *ptr++ = fgetc(file);\r
+ }\r
+\r
+ fclose(file);\r
+}\r
+\r
+\r
+void\r
+omodexSavePalFile(char *filename, byte *pal) {\r
+// unsigned int i;\r
+ FILE *file;\r
+\r
+ /* open the file for writing */\r
+ file = fopen(filename, "wb");\r
+ if(!file) {\r
+ printf("Could not open %s for writing\n", filename);\r
+ exit(-2);\r
+ }\r
+\r
+ /* write the data to the file */\r
+ fwrite(pal, 1, PAL_SIZE, file);\r
+ fclose(file);\r
+}\r
+\r
+\r
+/* blanking */\r
+void\r
+omodexPalBlack() {\r
+ fadePalette(-1, 64, 1, tmppal);\r
+}\r
+\r
+\r
+void\r
+omodexPalWhite() {\r
+ fadePalette(-1, -64, 1, tmppal);\r
+}\r
+\r
+\r
+/* utility */\r
+void\r
+omodexPalUpdate(byte *p) {\r
+ int i;\r
+ omodexWaitBorder();\r
+ outp(PAL_WRITE_REG, 0); /* start at the beginning of palette */\r
+ for(i=0; i<PAL_SIZE/2; i++) {\r
+ outp(PAL_DATA_REG, p[i]);\r
+ }\r
+ omodexWaitBorder(); /* waits one retrace -- less flicker */\r
+ for(i=PAL_SIZE/2; i<PAL_SIZE; i++) {\r
+ outp(PAL_DATA_REG, p[i]);\r
+ }\r
+}\r
+\r
+\r
+void\r
+omodexWaitBorder() {\r
+ while(inp(INPUT_STATUS_1) & 8) {\r
+ /* spin */\r
+ }\r
+\r
+ while(!(inp(INPUT_STATUS_1) & 8)) {\r
+ /* spin */\r
+ }\r
+}\r
+\r
+///////////////////////////////////////////////////////////////////////////\r
+//\r
+// US_CheckParm() - checks to see if a string matches one of a set of\r
+// strings. The check is case insensitive. The routine returns the\r
+// index of the string that matched, or -1 if no matches were found\r
+//\r
+///////////////////////////////////////////////////////////////////////////\r
+int\r
+US_CheckParm(char *parm,char **strings)\r
+{\r
+ char cp,cs,\r
+ *p,*s;\r
+ int i;\r
+\r
+ while (!isalpha(*parm)) // Skip non-alphas\r
+ parm++;\r
+\r
+ for (i = 0;*strings && **strings;i++)\r
+ {\r
+ for (s = *strings++,p = parm,cs = cp = 0;cs == cp;)\r
+ {\r
+ cs = *s++;\r
+ if (!cs)\r
+ return(i);\r
+ cp = *p++;\r
+\r
+ if (isupper(cs))\r
+ cs = tolower(cs);\r
+ if (isupper(cp))\r
+ cp = tolower(cp);\r
+ }\r
+ }\r
+ return(-1);\r
+}\r
--- /dev/null
+/*\r
+ * Functions for handling omodex and doing other basic graphics stuff.\r
+ */\r
+#ifndef omodex16_H\r
+#define omodex16_H\r
+#include <conio.h>\r
+#include "src/lib/16_head.h"\r
+#include "16/src/lib/bitmap.h"\r
+\r
+/* -========================== Types & Macros ==========================- */\r
+#define PAGE_OFFSET(x,y) (((y)<<6)+((y)<<4)+((x)>>2))\r
+//#define PLANE(x) (1<< (x&3))\r
+#define SELECT_ALL_PLANES() outpw(0x03c4, 0xff02)\r
+\r
+typedef struct {\r
+ byte far* data; /* the data for the page */\r
+ word dx; /* col we are viewing on the virtual screen */\r
+ word dy; /* row we are viewing on the virtual screen */\r
+ word width; /* virtual width of the page */\r
+ word height; /* virtual height of the page */\r
+} opage_t;\r
+\r
+/* -============================ Functions =============================- */\r
+/* mode switching, page, and plane functions */\r
+void omodexEnter();\r
+void omodexLeave();\r
+opage_t omodexDefaultPage();\r
+opage_t omodexNextPage(opage_t *p);\r
+void omodexShowPage(opage_t *page);\r
+void omodexPanPage(opage_t *page, int dx, int dy);\r
+void omodexSelectPlane(byte plane);\r
+void omodexClearRegion(opage_t *page, int x, int y, int w, int h, byte color);\r
+void omodexDrawBmp(opage_t *page, int x, int y, bitmap_t *bmp);\r
+void omodexDrawBmpRegion(opage_t *page, int x, int y, int rx, int ry, int rw, int rh, bitmap_t *bmp);\r
+void omodexDrawSprite(opage_t *page, int x, int y, bitmap_t *bmp);\r
+void omodexDrawSpriteRegion(opage_t *page, int x, int y, int rx, int ry, int rw, int rh, bitmap_t *bmp);\r
+\r
+/* Palette fade and flash effects */\r
+void omodexFadeOn(word fade, byte *palette);\r
+void omodexFadeOff(word fade, byte *palette);\r
+void omodexFlashOn(word fade, byte *palette);\r
+void omodexFlashOff(word fade, byte *palette);\r
+\r
+/* palette loading and saving */\r
+void omodexPalSave(byte *palette);\r
+byte *omodexNewPal();\r
+void omodexLoadPalFile(char *filename, byte **palette);\r
+void omodexSavePalFile(char *filename, byte *palette);\r
+\r
+/* fixed palette functions */\r
+void omodexPalBlack();\r
+void omodexPalWhite();\r
+\r
+/* utility functions */\r
+void omodexPalUpdate(byte *p);\r
+void omodexWaitBorder();\r
+int US_CheckParm(char *parm,char **strings);\r
+\r
+/* -======================= Constants & Vars ==========================- */\r
+extern byte far* VGA; /* The VGA Memory */\r
+#define SCREEN_SEG 0xa000\r
+#define VIDEO_INT 0x10\r
+#define SET_MODE 0x00\r
+#define VGA_256_COLOR_MODE 0x13\r
+#define TEXT_MODE 0x03\r
+#define SCREEN_WIDTH 320\r
+#define SCREEN_HEIGHT 240\r
+#define PAGE_SIZE (word)(SCREEN_WIDTH/4 * SCREEN_HEIGHT)\r
+\r
+#define AC_INDEX 0x03c0\r
+#define SC_INDEX 0x03c4\r
+#define SC_DATA 0x03c5\r
+//#define CRTC_INDEX 0x03d4\r
+#define CRTC_DATA 0x03d5\r
+#define GC_INDEX 0x03ce\r
+#define MISC_OUTPUT 0x03c2\r
+#define HIGH_ADDRESS 0x0C\r
+#define LOW_ADDRESS 0x0D\r
+#define VRETRACE 0x08\r
+#define INPUT_STATUS_1 0x03da\r
+#define DISPLAY_ENABLE 0x01\r
+#define MAP_MASK 0x02\r
+#define PAL_READ_REG 0x03C7 /* Color register, read address */\r
+#define PAL_WRITE_REG 0x03C8 /* Color register, write address */\r
+#define PAL_DATA_REG 0x03C9 /* Color register, data port */\r
+#define PAL_SIZE (256 * 3)\r
+#endif\r
-//#include "modex16.h"\r
-#include "src/lib/16_vl.h"\r
+//from https://github.com/sparky4/16/commit/a19d7592507e5f7aa91f4a6b6611e021bd1a3e8d\r
+#include "16/src/lib/omodex16.h"\r
#include "16/src/lib/bitmap.h"\r
#include <stdio.h>\r
#include <stdlib.h>\r
\r
typedef struct {\r
omap_t *map;\r
- page_t *page;\r
+ opage_t *page;\r
int tx; //???? appears to be the tile position on the viewable screen map\r
int ty; //???? appears to be the tile position on the viewable screen map\r
word dxThresh; //????\r
void omapScrollUp(omap_view_t *mv, byte offset);\r
void omapScrollDown(omap_view_t *mv, byte offset);\r
void omapGoTo(omap_view_t *mv, int tx, int ty);\r
-void omapDrawTile(otiles_t *t, word i, page_t *page, word x, word y);\r
+void omapDrawTile(otiles_t *t, word i, opage_t *page, word x, word y);\r
void omapDrawRow(omap_view_t *mv, int tx, int ty, word y);\r
void omapDrawCol(omap_view_t *mv, int tx, int ty, word x);\r
\r
//int ch=0x0;\r
// byte ch;\r
// int q=0;\r
- page_t screen;//,screen2;\r
+ opage_t screen;//,screen2;\r
omap_t map;\r
omap_view_t mv;//, mv2;\r
omap_view_t *draw;//, *show, *tmp;\r
\r
/* draw the tiles */\r
ptr = map.data;\r
- modexEnter(1, 1, &gvar);\r
- screen = modexDefaultPage(&screen, &gvar);\r
+ omodexEnter(1, 1, &gvar);\r
+ screen = omodexDefaultPage();\r
screen.width += (TILEWH*2);\r
mv.page = &screen;\r
omapGoTo(&mv, 16, 16);\r
-// screen2=modexNextPage(mv.page);\r
+// screen2=omodexNextPage(mv.page);\r
// mv2.page = &screen2;\r
// omapGoTo(&mv2, 16, 16);\r
-// modexShowPage(mv.page);\r
+// omodexShowPage(mv.page);\r
\r
/* set up paging */\r
// show = &mv;\r
while(!gvar.in.inst->Keyboard[77]){\r
// for(q=0; q<TILEWH; q++) {\r
omapScrollRight(draw, 1);\r
-// modexShowPage(draw->page);\r
+// omodexShowPage(draw->page);\r
// omapScrollRight(draw, 1);\r
// SWAP(draw, show);\r
// }\r
while(!gvar.in.inst->Keyboard[75]){\r
// for(q=0; q<TILEWH; q++) {\r
omapScrollLeft(draw, 1);\r
-// modexShowPage(draw->page);\r
+// omodexShowPage(draw->page);\r
// omapScrollLeft(show, 1);\r
// SWAP(draw, show);\r
// }\r
while(!gvar.in.inst->Keyboard[80]){\r
// for(q=0; q<TILEWH; q++) {\r
omapScrollDown(draw, 1);\r
-// modexShowPage(draw->page);\r
+// omodexShowPage(draw->page);\r
// omapScrollDown(show, 1);\r
// SWAP(draw, show);\r
// }\r
while(!gvar.in.inst->Keyboard[72]){\r
// for(q=0; q<TILEWH; q++) {\r
omapScrollUp(draw, 1);\r
-// modexShowPage(draw->page);\r
+// omodexShowPage(draw->page);\r
// omapScrollUp(show, 1);\r
// SWAP(draw, show);\r
// }\r
}\r
\r
//keyp(ch);\r
- modexShowPage(draw->page);\r
+ omodexShowPage(draw->page);\r
\r
}\r
\r
- modexLeave();\r
+ omodexLeave();\r
\r
// setkb(0);\r
IN_Shutdown(&gvar);\r
mv->dyThresh = mv->map->tiles->tileHeight * 2;\r
\r
/* draw the tiles */\r
- modexClearRegion(mv->page, 0, 0, mv->page->width, mv->page->height, 0);\r
+ omodexClearRegion(mv->page, 0, 0, mv->page->width, mv->page->height, 0);\r
py=0;\r
i=mv->ty * mv->map->width + mv->tx;\r
for(ty=mv->ty-1; py < SCREEN_HEIGHT+mv->dyThresh && ty < mv->map->height; ty++, py+=mv->map->tiles->tileHeight) {\r
\r
\r
void\r
-omapDrawTile(otiles_t *t, word i, page_t *page, word x, word y) {\r
+omapDrawTile(otiles_t *t, word i, opage_t *page, word x, word y) {\r
word rx;\r
word ry;\r
rx = (i % t->cols) * t->tileWidth;\r
ry = (i / t->cols) * t->tileHeight;\r
- modexDrawBmpRegion(page, x, y, rx, ry, t->tileWidth, t->tileHeight, t->data);\r
+ omodexDrawBmpRegion(page, x, y, rx, ry, t->tileWidth, t->tileHeight, t->data);\r
}\r
\r
\r
projects / 16.git / commitdiff