*\r
* Simple graphics library to accompany the article\r
* \r
- * INTRODUCTION TO MODE X.\r
+ * INTRODUCTION TO MODE X.\r
* \r
* This library provides the basic functions for initializing and using\r
* unchained (planar) 256-color VGA modes. Currently supported are:\r
*\r
- * - 320x200\r
- * - 320x240\r
+ * - 320x200\r
+ * - 320x240\r
*\r
* Functions are provided for:\r
*\r
- * - initializing one of the available modes\r
- * - setting the start address of the VGA refresh data\r
- * - setting active and visible display pages\r
- * - writing and reading a single pixel to/from video memory\r
+ * - initializing one of the available modes\r
+ * - setting the start address of the VGA refresh data\r
+ * - setting active and visible display pages\r
+ * - writing and reading a single pixel to/from video memory\r
*\r
* The library is provided as a demonstration only, and is not claimed\r
* to be particularly efficient or suited for any purpose. It has only\r
/*\r
* Define the port addresses of some VGA registers.\r
*/\r
-#define CRTC_ADDR 0x3d4 /* Base port of the CRT Controller (color) */\r
+#define CRTC_ADDR 0x3d4 /* Base port of the CRT Controller (color) */\r
\r
-#define SEQU_ADDR 0x3c4 /* Base port of the Sequencer */\r
-#define GRAC_ADDR 0x3ce /* Base port of the Graphics Controller */\r
+#define SEQU_ADDR 0x3c4 /* Base port of the Sequencer */\r
+#define GRAC_ADDR 0x3ce /* Base port of the Graphics Controller */\r
#define STATUS_ADDR 0x3DA\r
\r
unsigned char *RowsX[600];\r
unsigned char write_plane, read_plane;\r
unsigned short text_mask[16] = { 0x0002, 0x0102, 0x0202, 0x0302,\r
- 0x0402, 0x0502, 0x0602, 0x0702,\r
- 0x0802, 0x0902, 0x0A02, 0x0B02,\r
- 0x0C02, 0x0D02, 0x0E02, 0x0F02 };\r
+ 0x0402, 0x0502, 0x0602, 0x0702,\r
+ 0x0802, 0x0902, 0x0A02, 0x0B02,\r
+ 0x0C02, 0x0D02, 0x0E02, 0x0F02 };\r
\r
\r
/*\r
\r
/*\r
* set320x200x256_X()\r
- * sets mode 13h, then turns it into an unchained (planar), 4-page\r
- * 320x200x256 mode.\r
+ * sets mode 13h, then turns it into an unchained (planar), 4-page\r
+ * 320x200x256 mode.\r
*/\r
void set320x200x256_X(void)\r
- {\r
- union REGS r;\r
+ {\r
+ union REGS r;\r
\r
- /* Set VGA BIOS mode 13h: */\r
- r.x.ax = 0x0013;\r
- int86(0x10, &r, &r);\r
+ /* Set VGA BIOS mode 13h: */\r
+ r.x.ax = 0x0013;\r
+ int86(0x10, &r, &r);\r
\r
- /* Turn off the Chain-4 bit (bit 3 at index 4, port 0x3c4): */\r
- outpw(SEQU_ADDR, 0x0604);\r
+ /* Turn off the Chain-4 bit (bit 3 at index 4, port 0x3c4): */\r
+ outpw(SEQU_ADDR, 0x0604);\r
\r
- /* Turn off word mode, by setting the Mode Control register\r
- of the CRT Controller (index 0x17, port 0x3d4): */\r
- outpw(CRTC_ADDR, 0xE317);\r
+ /* Turn off word mode, by setting the Mode Control register\r
+ of the CRT Controller (index 0x17, port 0x3d4): */\r
+ outpw(CRTC_ADDR, 0xE317);\r
\r
- /* Turn off doubleword mode, by setting the Underline Location\r
- register (index 0x14, port 0x3d4): */\r
- outpw(CRTC_ADDR, 0x0014);\r
+ /* Turn off doubleword mode, by setting the Underline Location\r
+ register (index 0x14, port 0x3d4): */\r
+ outpw(CRTC_ADDR, 0x0014);\r
\r
- /* Clear entire video memory, by selecting all four planes, then\r
- writing 0 to entire segment. */\r
- outpw(SEQU_ADDR, 0x0F02);\r
- memset(vga+1, 0, 0xffff); /* stupid size_t exactly 1 too small */\r
- vga[0] = 0;\r
+ /* Clear entire video memory, by selecting all four planes, then\r
+ writing 0 to entire segment. */\r
+ outpw(SEQU_ADDR, 0x0F02);\r
+ memset(vga+1, 0, 0xffff); /* stupid size_t exactly 1 too small */\r
+ vga[0] = 0;\r
\r
- /* Update the global variables to reflect dimensions of this\r
- mode. This is needed by most future drawing operations. */\r
- width = 320;\r
- height = 200;\r
+ /* Update the global variables to reflect dimensions of this\r
+ mode. This is needed by most future drawing operations. */\r
+ width = 320;\r
+ height = 200;\r
\r
- /* Each byte addresses four pixels, so the width of a scan line\r
- in *bytes* is one fourth of the number of pixels on a line. */\r
- widthBytes = width / 4;\r
+ /* Each byte addresses four pixels, so the width of a scan line\r
+ in *bytes* is one fourth of the number of pixels on a line. */\r
+ widthBytes = width / 4;\r
\r
- /* By default we want screen refreshing and drawing operations\r
- to be based at offset 0 in the video segment. */\r
- actStart = visStart = 0;\r
+ /* By default we want screen refreshing and drawing operations\r
+ to be based at offset 0 in the video segment. */\r
+ actStart = visStart = 0;\r
\r
- /*\r
+ /*\r
--------------------\r
HORIZONTAL SCROLLING\r
--------------------\r
-----------------------------------------------\r
*/\r
\r
- }\r
+ }\r
\r
/*\r
* setActiveStart() tells our graphics operations which address in video\r
* memory should be considered the top left corner.\r
*/\r
void setActiveStart(unsigned offset)\r
- {\r
- actStart = offset;\r
- }\r
+ {\r
+ actStart = offset;\r
+ }\r
\r
/*\r
* setVisibleStart() tells the VGA from which byte to fetch the first\r
* set, but before the low byte is set, which produces a bad flicker.\r
*/\r
void setVisibleStart(unsigned offset)\r
- {\r
- visStart = offset;\r
- outpw(CRTC_ADDR, 0x0C); /* set high byte */\r
- outpw(CRTC_ADDR+1, visStart >> 8);\r
- outpw(CRTC_ADDR, 0x0D); /* set low byte */\r
- outpw(CRTC_ADDR+1, visStart & 0xff);\r
- }\r
+ {\r
+ visStart = offset;\r
+ outpw(CRTC_ADDR, 0x0C); /* set high byte */\r
+ outpw(CRTC_ADDR+1, visStart >> 8);\r
+ outpw(CRTC_ADDR, 0x0D); /* set low byte */\r
+ outpw(CRTC_ADDR+1, visStart & 0xff);\r
+ }\r
\r
/*\r
* setXXXPage() sets the specified page by multiplying the page number\r
* function. The first page is number 0.\r
*/\r
void setActivePage(int page)\r
- {\r
- setActiveStart(page * widthBytes * height);\r
- }\r
+ {\r
+ setActiveStart(page * widthBytes * height);\r
+ }\r
\r
void setVisiblePage(int page)\r
- {\r
- setVisibleStart(page * widthBytes * height);\r
- }\r
+ {\r
+ setVisibleStart(page * widthBytes * height);\r
+ }\r
\r
void putPixel_X(int x, int y, byte color)\r
- {\r
- /* Each address accesses four neighboring pixels, so set\r
- Write Plane Enable according to which pixel we want\r
- to modify. The plane is determined by the two least\r
- significant bits of the x-coordinate: */\r
- outp(0x3c4, 0x02);\r
- outp(0x3c5, 0x01 << (x & 3));\r
-\r
- /* The offset of the pixel into the video segment is\r
- offset = (width * y + x) / 4, and write the given\r
- color to the plane we selected above. Heed the active\r
- page start selection. */\r
- vga[(unsigned)(widthBytes * y) + (x / 4) + actStart] = color;\r
-\r
- }\r
+ {\r
+ /* Each address accesses four neighboring pixels, so set\r
+ Write Plane Enable according to which pixel we want\r
+ to modify. The plane is determined by the two least\r
+ significant bits of the x-coordinate: */\r
+ outp(0x3c4, 0x02);\r
+ outp(0x3c5, 0x01 << (x & 3));\r
+\r
+ /* The offset of the pixel into the video segment is\r
+ offset = (width * y + x) / 4, and write the given\r
+ color to the plane we selected above. Heed the active\r
+ page start selection. */\r
+ vga[(unsigned)(widthBytes * y) + (x / 4) + actStart] = color;\r
+\r
+ }\r
\r
byte getPixel_X(int x, int y)\r
- {\r
- /* Select the plane from which we must read the pixel color: */\r
- outpw(GRAC_ADDR, 0x04);\r
- outpw(GRAC_ADDR+1, x & 3);\r
+ {\r
+ /* Select the plane from which we must read the pixel color: */\r
+ outpw(GRAC_ADDR, 0x04);\r
+ outpw(GRAC_ADDR+1, x & 3);\r
\r
- return vga[(unsigned)(widthBytes * y) + (x / 4) + actStart];\r
+ return vga[(unsigned)(widthBytes * y) + (x / 4) + actStart];\r
\r
- }\r
+ }\r
\r
void set320x240x256_X(void)\r
- {\r
- /* Set the unchained version of mode 13h: */\r
- set320x200x256_X();\r
-\r
- /* Modify the vertical sync polarity bits in the Misc. Output\r
- Register to achieve square aspect ratio: */\r
- outp(0x3C2, 0xE3);\r
-\r
- /* Modify the vertical timing registers to reflect the increased\r
- vertical resolution, and to center the image as good as\r
- possible: */\r
- outpw(0x3D4, 0x2C11); /* turn off write protect */\r
- outpw(0x3D4, 0x0D06); /* vertical total */\r
- outpw(0x3D4, 0x3E07); /* overflow register */\r
- outpw(0x3D4, 0xEA10); /* vertical retrace start */\r
- outpw(0x3D4, 0xAC11); /* vertical retrace end AND wr.prot */\r
- outpw(0x3D4, 0xDF12); /* vertical display enable end */\r
- outpw(0x3D4, 0xE715); /* start vertical blanking */\r
- outpw(0x3D4, 0x0616); /* end vertical blanking */\r
-\r
- /* Update mode info, so future operations are aware of the\r
- resolution */\r
- height = 240;\r
-\r
-//*$pragma aux mxSetVirtualScreen "MXSETVIRTUALSCREEN"\r
-//mxSetVirtualScreen(480,360);\r
- }\r
+ {\r
+ /* Set the unchained version of mode 13h: */\r
+ set320x200x256_X();\r
+\r
+ /* Modify the vertical sync polarity bits in the Misc. Output\r
+ Register to achieve square aspect ratio: */\r
+ outp(0x3C2, 0xE3);\r
+\r
+ /* Modify the vertical timing registers to reflect the increased\r
+ vertical resolution, and to center the image as good as\r
+ possible: */\r
+ outpw(0x3D4, 0x2C11); /* turn off write protect */\r
+ outpw(0x3D4, 0x0D06); /* vertical total */\r
+ outpw(0x3D4, 0x3E07); /* overflow register */\r
+ outpw(0x3D4, 0xEA10); /* vertical retrace start */\r
+ outpw(0x3D4, 0xAC11); /* vertical retrace end AND wr.prot */\r
+ outpw(0x3D4, 0xDF12); /* vertical display enable end */\r
+ outpw(0x3D4, 0xE715); /* start vertical blanking */\r
+ outpw(0x3D4, 0x0616); /* end vertical blanking */\r
+\r
+ /* Update mode info, so future operations are aware of the\r
+ resolution */\r
+ height = 240;\r
+\r
+//#pragma aux mxSetVirtualScreen "_"\r
+//void mxSetVirtualScreen(unsigned short int width, unsigned short int height);\r
+mxSetVirtualScreen(480,360);\r
+ }\r
\r
\r
/*-----------XXXX-------------*/\r
\r
/////////////////////////////////////////////////////////////////////////////\r
-// //\r
-// WaitRetrace() - This waits until you are in a Verticle Retrace. //\r
-// //\r
+// //\r
+// WaitRetrace() - This waits until you are in a Verticle Retrace. //\r
+// //\r
/////////////////////////////////////////////////////////////////////////////\r
void wait_for_retrace(void)\r
{\r
}\r
\r
/////////////////////////////////////////////////////////////////////////////\r
-// //\r
-// MoveTo() - This moves to position X*4 on a chain 4 screen. //\r
-// Note: As soon as I find documentation, this function //\r
-// will be better documented. - Snowman //\r
-// //\r
+// //\r
+// MoveTo() - This moves to position X*4 on a chain 4 screen. //\r
+// Note: As soon as I find documentation, this function //\r
+// will be better documented. - Snowman //\r
+// //\r
/////////////////////////////////////////////////////////////////////////////\r
/*\r
void MoveTo (word X, word Y) {\r
\r
-// word O = Y*SIZE*2+X;\r
- word O = Y*widthBytes*2+X;\r
+// word O = Y*SIZE*2+X;\r
+ word O = Y*widthBytes*2+X;\r
\r
asm {\r
mov bx, [O]\r
out dx, ax\r
}\r
\r
-;-----------------------------------------------------------\r
-;\r
-; MXPN.ASM - Panning function\r
-; Copyright (c) 1993,1994 by Alessandro Scotti\r
-;\r
-;-----------------------------------------------------------\r
-;WARN PRO\r
-#pragma aux mxPan = \\r
-"INCLUDE MODEX.DEF" \\r
-\r
-\r
-\r
-"EXTRN mxWaitDisplay : FAR" \\r
-"EXTRN mxStartAddress : FAR" \\r
-\r
-"MX_TEXT SEGMENT USE16 PARA PUBLIC 'CODE'\r
- ASSUME cs:MX_TEXT, ds:NOTHING, es:NOTHING" \\r
-\r
-"EXTRN mx_BytesPerLine : WORD" \\r
-\r
-//;-----------------------------------------------------------\r
-//;\r
-//; Moves the screen.\r
-//;\r
-//; Input:\r
-//; X, Y = new X, Y coordinates of view screen\r
-//; Output:\r
-//; none\r
-//;\r
-mxPan PROC FAR\r
- ARG Y:WORD, \\r
- X:WORD = ARG_SIZE\r
- ASSUME ds:NOTHING\r
- .enter 0\r
-\r
- mov ax, [Y]\r
- mul [mx_BytesPerLine]\r
- mov dx, [X]\r
- shr dx, 1\r
- shr dx, 1\r
- add ax, dx\r
- push ax ; Push the start address\r
- call mxWaitDisplay\r
- call mxStartAddress\r
-\r
- mov dx, 03DAh ; Set the pixel pan register\r
- in al, dx\r
- mov dx, 03C0h\r
- mov al, 33h\r
- out dx, al\r
- mov al, BYTE PTR [X]\r
- and al, 3\r
- shl al, 1\r
- out dx, al\r
-\r
- xor ax, ax\r
- .leave ARG_SIZE\r
-mxPan ENDP\r
-\r
-MX_TEXT ENDS\r
-END\r
-\r
-\r
}\r
\r
//Procedure Play;\r
\r
// for(loop1=0;loop1<=3;loop1++)\r
// for(loop2=0;loop2<=5;loop2++)\r
-// Putpic (loop1*160,loop2*66); // { This places the picture all over the\r
- // chain-4 screen }\r
+// Putpic (loop1*160,loop2*66); // { This places the picture all over the\r
+ // chain-4 screen }\r
// getch();\r
// ch=0x0;\r
// xpos=rand (78)+1;\r
// ypos=rand (198)+1; // { Random start positions for the view }\r
- xpos=0;\r
- ypos=0;\r
+ xpos=0;\r
+ ypos=0;\r
xdir=1;\r
ydir=1;\r
// while(1)\r
ypos=ypos+ydir;\r
if( (xpos>79) || (xpos<1))xdir=-xdir;\r
if( (ypos>199) || (ypos<1))ydir=-ydir; // { Hit a boundry, change\r
- // direction! }\r
+ // direction! }\r
// if(_bios_keybrd(_KEYBRD_READY))ch=getch();\r
-// if(ch==0x71)break; // 'q'\r
-// if(ch==0x1b)break; // 'ESC'\r
+// if(ch==0x71)break; // 'q'\r
+// if(ch==0x1b)break; // 'ESC'\r
// }\r
}\r
*/\r
/*tile*/\r
//king_crimson's code\r
void putColorBox_X(int x, int y, int w, int h, byte color) {\r
- outp(0x3c4, 0x02);\r
-\r
- int curx, cury;\r
- unsigned drawptr;\r
- for (curx=x; curx<(x+w); curx++) {\r
- outp(0x3c5, 0x01 << (curx & 3));\r
- drawptr = (unsigned)(widthBytes * y) + (curx / 4) + actStart;\r
- for (cury=0; cury<h; cury++) {\r
- vga[drawptr] = color;\r
- drawptr += widthBytes;\r
- }\r
- }\r
+ outp(0x3c4, 0x02);\r
+\r
+ int curx, cury;\r
+ unsigned drawptr;\r
+ for (curx=x; curx<(x+w); curx++) {\r
+ outp(0x3c5, 0x01 << (curx & 3));\r
+ drawptr = (unsigned)(widthBytes * y) + (curx / 4) + actStart;\r
+ for (cury=0; cury<h; cury++) {\r
+ vga[drawptr] = color;\r
+ drawptr += widthBytes;\r
+ }\r
+ }\r
}\r
\r
void vScroll(int rows)\r
{\r
- // Scrolling = current start + (rows * bytes in a row)\r
- setVisibleStart(visStart + (rows * width));\r
+ // Scrolling = current start + (rows * bytes in a row)\r
+ setVisibleStart(visStart + (rows * width));\r
}\r
\r
void scrolly(int bongy)\r
{\r
- int boingy=0;\r
- if(bongy<0)\r
- boingy=-1;\r
- else if(bongy>0)\r
- boingy=1;\r
-\r
- for(int ti=0;ti<TILEWH;ti++)\r
- {\r
- delay(1);\r
- vScroll(boingy);\r
- }\r
+ int boingy=0;\r
+ if(bongy<0)\r
+ boingy=-1;\r
+ else if(bongy>0)\r
+ boingy=1;\r
+\r
+ for(int ti=0;ti<TILEWH;ti++)\r
+ {\r
+ delay(1);\r
+ vScroll(boingy);\r
+ }\r
}\r
\r
//king_crimson's code\r
void hScroll(int Cols) {\r
- wait_for_retrace();\r
- outp(0x3C0, 0x13);\r
- outp(0x3C0, Cols & 3);\r
- outp(0x3D4, 0x13);\r
- outp(0x3D5, Cols >> 2);\r
- outp(0x3D4, Cols);\r
- //setVisibleStart(visStart + (Cols * height));\r
- setVisibleStart(visStart + (Cols * width));\r
+ wait_for_retrace();\r
+ outp(0x3C0, 0x13);\r
+ outp(0x3C0, Cols & 3);\r
+ outp(0x3D4, 0x13);\r
+ outp(0x3D5, Cols >> 2);\r
+ outp(0x3D4, Cols);\r
+ //setVisibleStart(visStart + (Cols * height));\r
+ setVisibleStart(visStart + (Cols * width));\r
}\r
\r
/*To implement smooth horizontal scrolling, you would do the following:\r
Perhaps a little diagram will clarify it. The following picture is of a\r
standard X-mode addressing scheme with the OFFSET register set to 80.\r
\r
- ROW OFFSET\r
- 0 0 ========================\r
- 1 80 [ ]\r
- 2 160 [ ]\r
- .. .. [ VISIBLE ]\r
- [ SCREEN ]\r
- [ ]\r
- [ ]\r
- .. .. [ ]\r
- 199 15920 ========================\r
+ ROW OFFSET\r
+ 0 0 ========================\r
+ 1 80 [ ]\r
+ 2 160 [ ]\r
+ .. .. [ VISIBLE ]\r
+ [ SCREEN ]\r
+ [ ]\r
+ [ ]\r
+ .. .. [ ]\r
+ 199 15920 ========================\r
\r
and the next diagram is of a modified addressing scheme with the OFFSET\r
register set to 82 (to give us 4 extra pixels on each side of the screen)\r
\r
ROW OFFSET\r
-0 0 ------========================------\r
-1 82 | V [ ] V |\r
-2 164 | I [ ] I |\r
-.. .. | N S [ VISIBLE ] N S |\r
- | O I [ SCREEN ] O I |\r
- | T B [ ] T B |\r
- | L [ ] L |\r
-.. .. | E [ ] E |\r
+0 0 ------========================------\r
+1 82 | V [ ] V |\r
+2 164 | I [ ] I |\r
+.. .. | N S [ VISIBLE ] N S |\r
+ | O I [ SCREEN ] O I |\r
+ | T B [ ] T B |\r
+ | L [ ] L |\r
+.. .. | E [ ] E |\r
199 16318 ------========================------\r
\r
Beautiful!!!\r
*/\r
int loadfontX(char *fname)\r
{\r
- FILE *fp;\r
+ FILE *fp;\r
\r
- fp = fopen(fname, "rb");\r
+ fp = fopen(fname, "rb");\r
\r
- if (fp == NULL) {\r
- return 0;\r
- } else {\r
- fread(Xfont, 8, 256, fp);\r
- fclose(fp);\r
- return 1;\r
- }\r
+ if (fp == NULL) {\r
+ return 0;\r
+ } else {\r
+ fread(Xfont, 8, 256, fp);\r
+ fclose(fp);\r
+ return 1;\r
+ }\r
}\r
\r
void putchX(cord x, cord y, char c, byte color)\r
{\r
- int i;\r
- byte *vga_ptr;\r
- byte *font_ptr;\r
- byte temp;\r
-\r
- // 8x8 font\r
- vga_ptr = RowsX[y << 3] + (x << 1) + actStart;\r
- write_plane = -1;\r
-\r
- font_ptr = Xfont + (c << 3);\r
-\r
- i=8;\r
- while (i--) {\r
- temp = *font_ptr++;\r
- outpw(SEQU_ADDR, text_mask[temp & 0x0F]);\r
- *vga_ptr++ = color;\r
-\r
- outpw(SEQU_ADDR, text_mask[temp >> 4]);\r
- *vga_ptr-- = color;\r
- vga_ptr += widthBytes;\r
- }\r
+ int i;\r
+ byte *vga_ptr;\r
+ byte *font_ptr;\r
+ byte temp;\r
+\r
+ // 8x8 font\r
+ vga_ptr = RowsX[y << 3] + (x << 1) + actStart;\r
+ write_plane = -1;\r
+\r
+ font_ptr = Xfont + (c << 3);\r
+\r
+ i=8;\r
+ while (i--) {\r
+ temp = *font_ptr++;\r
+ outpw(SEQU_ADDR, text_mask[temp & 0x0F]);\r
+ *vga_ptr++ = color;\r
+\r
+ outpw(SEQU_ADDR, text_mask[temp >> 4]);\r
+ *vga_ptr-- = color;\r
+ vga_ptr += widthBytes;\r
+ }\r
}\r
\r
void putstringX(cord x, cord y, char *str, byte color)\r
{\r
- int i, skip;\r
- byte *vga_ptr;\r
- byte *font_ptr;\r
- byte c, temp;\r
+ int i, skip;\r
+ byte *vga_ptr;\r
+ byte *font_ptr;\r
+ byte c, temp;\r
\r
- // 8x8 font\r
- vga_ptr = RowsX[y << 3] + (x << 1) + actStart;\r
- write_plane = -1;\r
+ // 8x8 font\r
+ vga_ptr = RowsX[y << 3] + (x << 1) + actStart;\r
+ write_plane = -1;\r
\r
- skip = 2 - (widthBytes << 3);\r
+ skip = 2 - (widthBytes << 3);\r
\r
- while (c = *str++) {\r
- font_ptr = Xfont + (c << 3);\r
+ while (c = *str++) {\r
+ font_ptr = Xfont + (c << 3);\r
\r
- i=8;\r
- while (i--) {\r
- temp = *font_ptr++;\r
- outpw(SEQU_ADDR, text_mask[temp & 0x0F]);\r
- *vga_ptr++ = color;\r
+ i=8;\r
+ while (i--) {\r
+ temp = *font_ptr++;\r
+ outpw(SEQU_ADDR, text_mask[temp & 0x0F]);\r
+ *vga_ptr++ = color;\r
\r
- outpw(SEQU_ADDR, text_mask[temp >> 4]);\r
- *vga_ptr-- = color;\r
- vga_ptr += widthBytes;\r
- }\r
+ outpw(SEQU_ADDR, text_mask[temp >> 4]);\r
+ *vga_ptr-- = color;\r
+ vga_ptr += widthBytes;\r
+ }\r
\r
- vga_ptr += skip;\r
- }\r
+ vga_ptr += skip;\r
+ }\r
}\r
\r
/////////////////////////////////////////////////////////////////////////////\r
-// //\r
-// setvideo() - This function Manages the video modes //\r
-// //\r
+// //\r
+// setvideo() - This function Manages the video modes //\r
+// //\r
/////////////////////////////////////////////////////////////////////////////\r
void setvideo(/*byte mode, */int vq){\r
- union REGS in, out;\r
-\r
- if(!vq){ // deinit the video\r
- // change to the video mode we were in before we switched to mode 13h\r
- in.h.ah = 0x00;\r
- in.h.al = old_mode;\r
- int86(0x10, &in, &out);\r
-\r
- }else if(vq == 1){ // init the video\r
- // get old video mode\r
- in.h.ah = 0xf;\r
- int86(0x10, &in, &out);\r
- old_mode = out.h.al;\r
-\r
- // enter mode\r
- set320x240x256_X();\r
- }\r
+ union REGS in, out;\r
+\r
+ if(!vq){ // deinit the video\r
+ // change to the video mode we were in before we switched to mode 13h\r
+ in.h.ah = 0x00;\r
+ in.h.al = old_mode;\r
+ int86(0x10, &in, &out);\r
+\r
+ }else if(vq == 1){ // init the video\r
+ // get old video mode\r
+ in.h.ah = 0xf;\r
+ int86(0x10, &in, &out);\r
+ old_mode = out.h.al;\r
+\r
+ // enter mode\r
+ set320x240x256_X();\r
+ }\r
}\r
\r
/////////////////////////////////////////////////////////////////////////////\r
-// //\r
+// //\r
// cls() - This clears the screen to the specified color, on the VGA or on //\r
-// the Virtual screen. //\r
-// //\r
+// the Virtual screen. //\r
+// //\r
/////////////////////////////////////////////////////////////////////////////\r
void cls(byte color, byte *Where){\r
- _fmemset(Where, color, width*(height*17));\r
+ _fmemset(Where, color, width*(height*17));\r
}\r
\r
//color \82Ä\82·\82Æ\r
int colortest(){\r
- if(gq < NUM_COLORS){\r
- cls(gq, vga);\r
- gq++;\r
- }else gq = 0;\r
- return gq;\r
+ if(gq < NUM_COLORS){\r
+ cls(gq, vga);\r
+ gq++;\r
+ }else gq = 0;\r
+ return gq;\r
}\r
\r
//color \82Ä\82·\82Æ\r
int colorz(){\r
- if(gq < HGQ){\r
-//---- cls(gq, vaddr);\r
- cls(gq, vga);\r
- gq++;\r
- }else gq = LGQ;\r
- return gq;\r
+ if(gq < HGQ){\r
+//---- cls(gq, vaddr);\r
+ cls(gq, vga);\r
+ gq++;\r
+ }else gq = LGQ;\r
+ return gq;\r
}\r
\r
//slow spectrum down\r
void ssd(int svq){\r
- if(sy < height+1){\r
- if(sx < width+1){\r
- //plotpixel(xx, yy, coor, vga);\r
- //ppf(sx, sy, coor, vga);\r
- putPixel_X(sx, sy, coor);\r
- //printf("%d %d %d %d\n", sx, sy, svq, coor);\r
- sx++;\r
- }else sx = 0;\r
- if(sx == width){\r
- sy++;\r
- if(svq == 7) coor++;\r
- if(sy == height && svq == 8) coor = rand()%NUM_COLORS;\r
- }\r
- }else sy = 0;\r
+ if(sy < height+1){\r
+ if(sx < width+1){\r
+ //plotpixel(xx, yy, coor, vga);\r
+ //ppf(sx, sy, coor, vga);\r
+ putPixel_X(sx, sy, coor);\r
+ //printf("%d %d %d %d\n", sx, sy, svq, coor);\r
+ sx++;\r
+ }else sx = 0;\r
+ if(sx == width){\r
+ sy++;\r
+ if(svq == 7) coor++;\r
+ if(sy == height && svq == 8) coor = rand()%NUM_COLORS;\r
+ }\r
+ }else sy = 0;\r
}\r
\r
/*-----------ding-------------*/\r
int ding(int q){\r
\r
-// if(yy<height){\r
- setActivePage(0);\r
- setVisiblePage(0);\r
-/* }\r
- if((height)<yy<(height*2)){\r
- setActivePage(1);\r
- setVisiblePage(1);\r
- }\r
- if((height*2)<yy<(height*3)){\r
- setActivePage(2);\r
- setVisiblePage(2);\r
- }*/\r
- int d3y;\r
+// if(yy<height){\r
+ setActivePage(0);\r
+ setVisiblePage(0);\r
+/* }\r
+ if((height)<yy<(height*2)){\r
+ setActivePage(1);\r
+ setVisiblePage(1);\r
+ }\r
+ if((height*2)<yy<(height*3)){\r
+ setActivePage(2);\r
+ setVisiblePage(2);\r
+ }*/\r
+ int d3y;\r
\r
//++++ if(q <= 4 && q!=2 && gq == BONK-1) coor = rand()%HGQ;\r
- if((q == 2\r
- ||q==4\r
- ||q==16\r
- ) && gq == BONK){\r
- if(coor < HGQ && coor < LGQ) coor = LGQ;\r
- if(coor < HGQ-1){\r
- coor++;\r
- }else{ coor = LGQ;\r
- bakax = rand()%3; bakay = rand()%3;\r
- }\r
- }\r
-\r
- if(q==8){ colorz(); return gq; }else\r
- if(q==10){ ssd(q); /*printf("%d\n", coor);*/ }else\r
- if(q==5){ colortest(); return gq; }else\r
- if(q==11){ colorz(); delay(100); return gq; }\r
- if(q==6){\r
- coor = rand()%NUM_COLORS;\r
-//---- cls(coor, vaddr);\r
- cls(coor, vga);\r
- //updatevbuff();\r
- }\r
-\r
- if(q==7||q==9){\r
- if(gq < HGQ){\r
- if(q == 7) ssd(q);\r
- if(q == 9){ ssd(q); coor++; }\r
- gq++;\r
- }else gq = LGQ;\r
- }\r
- if((q<5 && gq<BONK) || (q==16 && gq<BONK)){ // the number variable make the colors more noticable\r
- if(q==1){\r
- if(xx==width){bakax=0;}\r
- if(xx==0){bakax=1;}\r
- if(yy==height){bakay=0;}\r
- if(yy==0){bakay=1;}\r
- }else if(q==3){\r
- if(xx!=width||yy!=height){\r
- if(xx==0){bakax=1;bakay=-1;d3y=1;}\r
- if(yy==0){bakax=1;bakay=0;d3y=1;}\r
- if(xx==width){bakax=-1;bakay=-1;d3y=1;}\r
- if(yy==height){bakax=1;bakay=0;d3y=1;}\r
- }else if(xx==width&&yy==height) xx=yy=0;\r
- }\r
- if(q==3){\r
- if(d3y){\r
- if(bakay<0){\r
- yy--;\r
- d3y--;\r
- }else\r
- if(bakay>0){\r
- yy++;\r
- d3y--;\r
- }\r
- }\r
- if(bakax<0){\r
- xx--;\r
- }else\r
- if(bakax>0){\r
- xx++;\r
- }\r
- }else{\r
- if(q==16)\r
- {\r
- if(!bakax){\r
- xx--;//=TILEWH;\r
- }else if(bakax>0){\r
- xx++;//=TILEWH;\r
- }\r
- if(!bakay){\r
- yy--;//=TILEWH;\r
- }else if(bakay>0){\r
- yy++;//=TILEWH;\r
- }\r
- }else{\r
- if(!bakax){\r
-// xx-=TILEWH;\r
- xx--;\r
- }else if(bakax>1){\r
-// xx+=TILEWH;\r
- xx++;\r
- }\r
- if(!bakay){\r
-// yy-=TILEWH;\r
- yy--;\r
- }else if(bakay>1){\r
-// yy+=TILEWH;\r
- yy++;\r
- }\r
- }\r
- }\r
- // fixer\r
-// if(q!=16){\r
+ if((q == 2\r
+ ||q==4\r
+ ||q==16\r
+ ) && gq == BONK){\r
+ if(coor < HGQ && coor < LGQ) coor = LGQ;\r
+ if(coor < HGQ-1){\r
+ coor++;\r
+ }else{ coor = LGQ;\r
+ bakax = rand()%3; bakay = rand()%3;\r
+ }\r
+ }\r
+\r
+ if(q==8){ colorz(); return gq; }else\r
+ if(q==10){ ssd(q); /*printf("%d\n", coor);*/ }else\r
+ if(q==5){ colortest(); return gq; }else\r
+ if(q==11){ colorz(); delay(100); return gq; }\r
+ if(q==6){\r
+ coor = rand()%NUM_COLORS;\r
+//---- cls(coor, vaddr);\r
+ cls(coor, vga);\r
+ //updatevbuff();\r
+ }\r
+\r
+ if(q==7||q==9){\r
+ if(gq < HGQ){\r
+ if(q == 7) ssd(q);\r
+ if(q == 9){ ssd(q); coor++; }\r
+ gq++;\r
+ }else gq = LGQ;\r
+ }\r
+ if((q<5 && gq<BONK) || (q==16 && gq<BONK)){ // the number variable make the colors more noticable\r
+ if(q==1){\r
+ if(xx==width){bakax=0;}\r
+ if(xx==0){bakax=1;}\r
+ if(yy==height){bakay=0;}\r
+ if(yy==0){bakay=1;}\r
+ }else if(q==3){\r
+ if(xx!=width||yy!=height){\r
+ if(xx==0){bakax=1;bakay=-1;d3y=1;}\r
+ if(yy==0){bakax=1;bakay=0;d3y=1;}\r
+ if(xx==width){bakax=-1;bakay=-1;d3y=1;}\r
+ if(yy==height){bakax=1;bakay=0;d3y=1;}\r
+ }else if(xx==width&&yy==height) xx=yy=0;\r
+ }\r
+ if(q==3){\r
+ if(d3y){\r
+ if(bakay<0){\r
+ yy--;\r
+ d3y--;\r
+ }else\r
+ if(bakay>0){\r
+ yy++;\r
+ d3y--;\r
+ }\r
+ }\r
+ if(bakax<0){\r
+ xx--;\r
+ }else\r
+ if(bakax>0){\r
+ xx++;\r
+ }\r
+ }else{\r
+ if(q==16)\r
+ {\r
+ if(!bakax){\r
+ xx--;//=TILEWH;\r
+ }else if(bakax>0){\r
+ xx++;//=TILEWH;\r
+ }\r
+ if(!bakay){\r
+ yy--;//=TILEWH;\r
+ }else if(bakay>0){\r
+ yy++;//=TILEWH;\r
+ }\r
+ }else{\r
+ if(!bakax){\r
+// xx-=TILEWH;\r
+ xx--;\r
+ }else if(bakax>1){\r
+// xx+=TILEWH;\r
+ xx++;\r
+ }\r
+ if(!bakay){\r
+// yy-=TILEWH;\r
+ yy--;\r
+ }else if(bakay>1){\r
+// yy+=TILEWH;\r
+ yy++;\r
+ }\r
+ }\r
+ }\r
+ // fixer\r
+// if(q!=16){\r
//if(q!=16)\r
-// if(xx<(0/*-(TILEWH/2)*/)) xx=(width/*+(TILEWH)*/);\r
- if(yy<0) yy=(height*3);\r
-// if(xx>(width/*+(TILEWH)*/)) xx=(0/*-(TILEWH/2)*/);\r
- if(yy>(height*3)) yy=0;\r
-// }\r
+// if(xx<(0/*-(TILEWH/2)*/)) xx=(width/*+(TILEWH)*/);\r
+ if(yy<0) yy=(height*3);\r
+// if(xx>(width/*+(TILEWH)*/)) xx=(0/*-(TILEWH/2)*/);\r
+ if(yy>(height*3)) yy=0;\r
+// }\r
\r
//interesting effects\r
- if(q==16)\r
- {\r
- int tx=0,ty=0;\r
- tx+=xx+16;\r
- ty+=yy+16;\r
- putPixel_X(tx, ty, coor);\r
- //drawrect(tx, ty, tx+TILEWH, ty+TILEWH, coor);\r
- //printf("%d %d %d %d %d %d\n", xx, yy, tx, ty, TILEWH);\r
-\r
- // plot the pixel\r
-//---- ppf(xx, yy, coor, vga);\r
- }else /*if(xx>=0 && xx<width && yy>=0 && yy<(height*3))*/{\r
-// putColorBox_X(xx, yy, TILEWH, TILEWH, coor);\r
+ if(q==16)\r
+ {\r
+ int tx=0,ty=0;\r
+ tx+=xx+16;\r
+ ty+=yy+16;\r
+ putPixel_X(tx, ty, coor);\r
+ //drawrect(tx, ty, tx+TILEWH, ty+TILEWH, coor);\r
+ //printf("%d %d %d %d %d %d\n", xx, yy, tx, ty, TILEWH);\r
+\r
+ // plot the pixel\r
+//---- ppf(xx, yy, coor, vga);\r
+ }else /*if(xx>=0 && xx<width && yy>=0 && yy<(height*3))*/{\r
+// putColorBox_X(xx, yy, TILEWH, TILEWH, coor);\r
//++++0000\r
- putPixel_X(xx, yy, coor);\r
- } \r
+ putPixel_X(xx, yy, coor);\r
+ } \r
\r
-//---- if(q==2) ppf(rand()%, rand()%height, 0, vga);\r
-// if(q==2) putColorBox_X(rand()%width, rand()%(height*3), TILEWH, TILEWH, 0);\r
+//---- if(q==2) ppf(rand()%, rand()%height, 0, vga);\r
+// if(q==2) putColorBox_X(rand()%width, rand()%(height*3), TILEWH, TILEWH, 0);\r
//++++0000\r
- if(q==2) putPixel_X(rand()%width, rand()%(height*3), 0);\r
- if(q==16) putPixel_X(rand()%width, rand()%(height*3), 0);\r
- if(q==2||q==4||q==16){ bakax = rand()%3; bakay = rand()%3; }\r
- gq++;\r
+ if(q==2) putPixel_X(rand()%width, rand()%(height*3), 0);\r
+ if(q==16) putPixel_X(rand()%width, rand()%(height*3), 0);\r
+ if(q==2||q==4||q==16){ bakax = rand()%3; bakay = rand()%3; }\r
+ gq++;\r
//if(xx<0||xx>320||yy<0||yy>(height*3))\r
-// printf("%d %d %d %d %d %d\n", xx, yy, coor, bakax, bakay, getPixel_X(xx,yy));\r
-// printf("%d\n", getPixel_X(xx,yy));\r
+// printf("%d %d %d %d %d %d\n", xx, yy, coor, bakax, bakay, getPixel_X(xx,yy));\r
+// printf("%d\n", getPixel_X(xx,yy));\r
//0000\r
-// drawText(0, 0, 15, getPixel_X(xx,yy));\r
- }else gq = LGQ;\r
- return gq;\r
+// drawText(0, 0, 15, getPixel_X(xx,yy));\r
+ }else gq = LGQ;\r
+ return gq;\r
}\r
\r
\r
#include <conio.h>\r
\r
void doTest(void)\r
- {\r
- int p, x, y, pages;\r
-\r
- /* This is the way to calculate the number of pages available. */\r
- pages = 65536L/(widthBytes*height); // apparently this takes the A000 address\r
-// if(height==240) pages++;\r
-\r
-// printf("%d\n", pages);\r
-\r
- for (p = 0; p <= pages; ++p)\r
- {\r
- setActivePage(p);\r
-\r
- /* On each page draw a single colored border, and dump the palette\r
- onto a small square about the middle of the page. */\r
-\r
- //{\r
- for (x = 0; x <= width; ++x)\r
- {\r
- putPixel_X(x, 0, p+1);\r
- if(p!=pages) putPixel_X(x, height-1, p+1);\r
- else if(height==240) putPixel_X(x, 99-1, p+1);\r
- }\r
-\r
- for (y = 0; y <= height; ++y)\r
- {\r
- putPixel_X(0, y, p+1);\r
- if(p!=pages) putPixel_X(width-1, y, p+1);\r
- else if(height==240) putPixel_X(width-1, y, p+1);\r
- }\r
-\r
- for (x = 0; x < TILEWH; ++x)\r
- for (y = 0; y < TILEWH; ++y)\r
- putPixel_X(x+(p+2)*16, y+(p+2)*TILEWH, x + y*TILEWH);\r
- //}\r
-\r
- }\r
-\r
- /* Each pages will now contain a different image. Let the user cycle\r
- through all the pages by pressing a key. */\r
- for (p = 0; p < pages; ++p)\r
- {\r
- setVisiblePage(p);\r
- getch();\r
- }\r
-\r
- }\r
+ {\r
+ int p, x, y, pages;\r
+\r
+ /* This is the way to calculate the number of pages available. */\r
+ pages = 65536L/(widthBytes*height); // apparently this takes the A000 address\r
+// if(height==240) pages++;\r
+\r
+// printf("%d\n", pages);\r
+\r
+ for (p = 0; p <= pages; ++p)\r
+ {\r
+ setActivePage(p);\r
+\r
+ /* On each page draw a single colored border, and dump the palette\r
+ onto a small square about the middle of the page. */\r
+\r
+ //{\r
+ for (x = 0; x <= width; ++x)\r
+ {\r
+ putPixel_X(x, 0, p+1);\r
+ if(p!=pages) putPixel_X(x, height-1, p+1);\r
+ else if(height==240) putPixel_X(x, 99-1, p+1);\r
+ }\r
+\r
+ for (y = 0; y <= height; ++y)\r
+ {\r
+ putPixel_X(0, y, p+1);\r
+ if(p!=pages) putPixel_X(width-1, y, p+1);\r
+ else if(height==240) putPixel_X(width-1, y, p+1);\r
+ }\r
+\r
+ for (x = 0; x < TILEWH; ++x)\r
+ for (y = 0; y < TILEWH; ++y)\r
+ putPixel_X(x+(p+2)*16, y+(p+2)*TILEWH, x + y*TILEWH);\r
+ //}\r
+\r
+ }\r
+\r
+ /* Each pages will now contain a different image. Let the user cycle\r
+ through all the pages by pressing a key. */\r
+ for (p = 0; p < pages; ++p)\r
+ {\r
+ setVisiblePage(p);\r
+ getch();\r
+ }\r
+\r
+ }\r
\r
/*\r
* Library test (program) entry point.\r
*/\r
\r
int main(void)\r
- {\r
- int key,d;\r
- //short int temp;\r
- // main variables\r
- d=1; // switch variable\r
- key=4; // default screensaver number\r
-// puts("First, have a look at the 320x200 mode. I will draw some rubbish");\r
-// puts("on all of the four pages, then let you cycle through them by");\r
-// puts("hitting a key on each page.");\r
-// puts("Press a key when ready...");\r
-// getch();\r
-\r
-// doTest();\r
-\r
-// puts("Then, check out Mode X, 320x240 with 3 (and a half) pages.");\r
-// puts("Press a key when ready...");\r
-// getch();\r
+ {\r
+ int key,d;\r
+ //short int temp;\r
+ // main variables\r
+ d=1; // switch variable\r
+ key=4; // default screensaver number\r
+// puts("First, have a look at the 320x200 mode. I will draw some rubbish");\r
+// puts("on all of the four pages, then let you cycle through them by");\r
+// puts("hitting a key on each page.");\r
+// puts("Press a key when ready...");\r
+// getch();\r
+\r
+// doTest();\r
+\r
+// puts("Then, check out Mode X, 320x240 with 3 (and a half) pages.");\r
+// puts("Press a key when ready...");\r
+// getch();\r
\r
//++++0000\r
- setvideo(1);\r
- /*temp = loadfontX("vga8x8.fnt");\r
+ setvideo(1);\r
+ /*temp = loadfontX("vga8x8.fnt");\r
\r
- if (temp) {\r
- putstringX(0, 0, "bakapi!", 2);\r
- }\r
- getch();*/\r
+ if (temp) {\r
+ putstringX(0, 0, "bakapi!", 2);\r
+ }\r
+ getch();*/\r
// screen savers\r
\r
/*while(d!=0){ // on!\r
- if(!kbhit()){ // conditions of screen saver\r
- ding(key);\r
- }else{\r
- setvideo(0);\r
- // user imput switch\r
- printf("Enter 1, 2, 3, 4, or 6 to run a screensaver, or enter 5 to quit.\n", getch()); // prompt the user\r
- scanf("%d", &key);\r
- //if(key==3){xx=yy=0;} // crazy screen saver wwww\r
- if(key==5) d=0;\r
- setvideo(1);\r
- }\r
- }*/ // else off\r
- while(!kbhit()){ // conditions of screen saver\r
- ding(4);\r
- }\r
- //end of screen savers\r
- doTest();\r
-// getch();\r
-\r
- while(!kbhit()){ // conditions of screen saver\r
- hScroll(1);\r
-// scrolly(1);\r
-// vScroll(1);\r
-// delay(100);\r
-// Play();\r
- }\r
+ if(!kbhit()){ // conditions of screen saver\r
+ ding(key);\r
+ }else{\r
+ setvideo(0);\r
+ // user imput switch\r
+ printf("Enter 1, 2, 3, 4, or 6 to run a screensaver, or enter 5 to quit.\n", getch()); // prompt the user\r
+ scanf("%d", &key);\r
+ //if(key==3){xx=yy=0;} // crazy screen saver wwww\r
+ if(key==5) d=0;\r
+ setvideo(1);\r
+ }\r
+ }*/ // else off\r
+ while(!kbhit()){ // conditions of screen saver\r
+ ding(4);\r
+ }\r
+ //end of screen savers\r
+ doTest();\r
+// getch();\r
+\r
+ while(!kbhit()){ // conditions of screen saver\r
+ hScroll(1);\r
+// scrolly(1);\r
+// vScroll(1);\r
+// delay(100);\r
+// Play();\r
+ }\r
//++++0000\r
- setvideo(0);\r
- printf("Resolution:\n[%d][%d]\n", width,height);\r
-// setvideo(0);\r
+ setvideo(0);\r
+ printf("Resolution:\n[%d][%d]\n", width,height);\r
+// setvideo(0);\r
//mxTerm();\r
-//mxGetVersion();
-
- printf("[%d]\n", mxGetVersion());\r
- puts("where to next? It's your move! wwww");\r
- printf("bakapi ver. 1.04.09.03\nis made by sparky4\81i\81\86\83Ö\81\85\81j feel free to use it ^^\nLicence: GPL v2\n");\r
- return 0;\r
- }\r
+\r
+// printf("[%d]\n", mxGetVersion());\r
+ puts("where to next? It's your move! wwww");\r
+ printf("bakapi ver. 1.04.09.03\nis made by sparky4\81i\81\86\83Ö\81\85\81j feel free to use it ^^\nLicence: GPL v2\n");\r
+ return 0;\r
+ }\r
\r
#endif\r
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