*\r
* This file is part of Project 16.\r
*\r
- * Project 16 is free software; you can redistribute it and/or modify\r
+ * Project 16 is free software; you can redistribute it and/or modify\r
* it under the terms of the GNU General Public License as published by\r
* the Free Software Foundation; either version 3 of the License, or\r
* (at your option) any later version.\r
*\r
- * Project 16 is distributed in the hope that it will be useful,\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
- * GNU General Public License for more details.\r
+ * Project 16 is distributed in the hope that it will be useful,\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ * GNU General Public License for more details.\r
*\r
* You should have received a copy of the GNU General Public License\r
* along with this program. If not, see <http://www.gnu.org/licenses/>, or\r
- * write to the Free Software Foundation, Inc., 51 Franklin Street,\r
+ * write to the Free Software Foundation, Inc., 51 Franklin Street,\r
* Fifth Floor, Boston, MA 02110-1301 USA.\r
*\r
*/\r
\r
mov dx,STATUS_REGISTER_1\r
\r
- // wait for a display signal to make sure the raster isn't in the middle\r
+ // wait for a display signal to make sure the raster isn't in the middle\r
// of a sync\r
\r
#ifdef __BORLANDC__\r
__asm {\r
#endif\r
// set CRTC start\r
- // for some reason, my XT's EGA card doesn't like word outs to the CRTC index...\r
+ // for some reason, my XT's EGA card doesn't like word outs to the CRTC index...\r
\r
mov cx,[crtc]\r
mov dx,CRTC_INDEX\r
// set horizontal panning\r
\r
mov dx,ATR_INDEX\r
-// mov al,ATR_PELPAN or 20h\r
+// mov al,ATR_PELPAN or 20h\r
out dx,al\r
jmp SetScreen_done\r
mov al,[BYTE PTR pelpan] //pel pan value\r
=\r
= VL_SetLineWidth\r
=\r
-= Line witdh is in WORDS, 40 words is normal width for vgaplanegr\r
+= Line witdh is in WORDS, 40 words is normal width for vgaplanegr\r
=\r
====================\r
*/\r
\r
offset = 0;\r
\r
- for (i=0;i<MAXSCANLINES;i++)\r
+ for (i=0;i<MAXSCANLINES;i++)\r
{\r
ofs->ylookup[i]=offset;\r
offset += ofs->linewidth;\r
int i;\r
\r
outportb (PAL_WRITE_REG,0);\r
- for (i=0;i<256;i++)\r
+ for (i=0;i<256;i++)\r
{\r
outportb (PAL_DATA_REG,red);\r
outportb (PAL_DATA_REG,green);\r
fastpalette=v->fastpalette;\r
\r
// outportb (PAL_WRITE_REG,0);\r
-// for (i=0;i<768;i++)\r
+// for (i=0;i<768;i++)\r
// outportb(PAL_DATA_REG,*palette++);\r
\r
__asm {\r
test [ss:fastpalette],1\r
jz slowset\r
//\r
-// set palette fast for cards that can take it\r
+// set palette fast for cards that can take it\r
//\r
//mov cx,768\r
//rep outsb\r
//jmp done\r
\r
//\r
-// set palette slowly for some video cards\r
+// set palette slowly for some video cards\r
//\r
#ifdef __BORLANDC__\r
}\r
int i;\r
\r
outportb (PAL_READ_REG,0);\r
- for (i=0;i<768;i++)\r
+ for (i=0;i<768;i++)\r
*palette++ = inportb(PAL_DATA_REG);\r
}\r
\r
=\r
= VL_FadeOut\r
=\r
-= Fades the current palette to the given color in the given number of steps\r
+= Fades the current palette to the given color in the given number of steps\r
=\r
=================\r
*/\r
//\r
// fade through intermediate frames\r
//\r
- for (i=0;i<steps;i++)\r
+ for (i=0;i<steps;i++)\r
{\r
origptr = &v->palette1[start][0];\r
newptr = &v->palette2[start][0];\r
- for (j=start;j<=end;j++)\r
+ for (j=start;j<=end;j++)\r
{\r
orig = *origptr++;\r
delta = red-orig;\r
//\r
// fade through intermediate frames\r
//\r
- for (i=0;i<steps;i++)\r
+ for (i=0;i<steps;i++)\r
{\r
- for (j=start;j<=end;j++)\r
+ for (j=start;j<=end;j++)\r
{\r
delta = palette[j]-v->palette1[0][j];\r
v->palette2[0][j] = v->palette1[0][j] + delta * i / steps;\r
=\r
= VL_TestPaletteSet\r
=\r
-= Sets the palette with outsb, then reads it in and compares\r
+= Sets the palette with outsb, then reads it in and compares\r
= If it compares ok, fastpalette is set to true.\r
=\r
=================\r
{\r
int i;\r
\r
- for (i=0;i<768;i++)\r
+ for (i=0;i<768;i++)\r
v->palette1[0][i] = i;\r
\r
v->fastpalette = true;\r
=================\r
*/\r
\r
-void VL_Hlin (unsigned x, unsigned y, unsigned width, unsigned color, ofs_t *ofs)\r
+void VL_Hlin (unsigned x, unsigned y, unsigned width, unsigned color, ofs_t *ofs)\r
{\r
unsigned xbyte;\r
byte far *dest;\r
\r
if (midbytes<0)\r
{\r
- // all in one byte\r
+ // all in one byte\r
VGAMAPMASK(leftmask&rightmask);\r
*dest = color;\r
VGAMAPMASK(15);\r
=================\r
*/\r
\r
-void VL_Vlin (int x, int y, int height, int color, ofs_t *ofs)\r
+void VL_Vlin (int x, int y, int height, int color, ofs_t *ofs)\r
{\r
byte far *dest,mask;\r
VCLIPDEF\r
\r
if (midbytes<0)\r
{\r
- // all in one byte\r
+ // all in one byte\r
VGAMAPMASK(leftmask&rightmask);\r
while (height--)\r
{\r
VGAMAPMASK(15);\r
}\r
\r
+//==========================================================================\r
+\r
+/*\r
+=================\r
+=\r
+= VL_MemToScreen\r
+=\r
+= Draws a block of data to the screen.\r
+=\r
+=================\r
+*/\r
+\r
+void VL_MemToScreen (byte far *source, int width, int height, int x, int y, ofs_t *ofs)\r
+{\r
+ byte far *screen,far *dest,mask;\r
+ int plane;\r
+\r
+ width>>=2;\r
+ dest = MK_FP(SCREENSEG,ofs->bufferofs+ofs->ylookup[y]+(x>>2) );\r
+ mask = 1 << (x&3);\r
+\r
+ for (plane = 0; plane<4; plane++)\r
+ {\r
+ VGAMAPMASK(mask);\r
+ mask <<= 1;\r
+ if (mask == 16)\r
+ mask = 1;\r
+\r
+ screen = dest;\r
+ for (y=0;y<height;y++,screen+=ofs->linewidth,source+=width)\r
+ _fmemcpy (screen,source,width);\r
+ }\r
+}\r
+\r
+//==========================================================================\r
\r
/*\r
==============\r
\r
VL_WaitVBL ******** NEW *********\r
\r
- Wait for the vertical retrace (returns before the actual vertical sync)\r
+ Wait for the vertical retrace (returns before the actual vertical sync)\r
\r
==============\r
*/\r
\r
mov cx,[num]\r
//\r
- // wait for a display signal to make sure the raster isn't in the middle\r
+ // wait for a display signal to make sure the raster isn't in the middle\r
// of a sync\r
//\r
#ifdef __BORLANDC__\r
}\r
\r
//===========================================================================\r
+#if 0\r
+#define VGAWRITEMODE(x) asm{\r
+ cli\r
+ mov dx,GC_INDEX\r
+ mov al,GC_MODE\r
+ out dx,al\r
+ inc dx\r
+ in al,dx\r
+ and al,252\r
+ or al,x\r
+ out dx,al\r
+ sti\r
+}\r
\r
-void VGAMAPMASK(byte x)\r
-{\r
- __asm {\r
-// cli\r
+#define VGAMAPMASK(x) asm{\r
+ cli\r
mov dx,SC_INDEX\r
mov al,SC_MAPMASK\r
mov ah,x\r
out dx,ax\r
-// sti\r
- }\r
+ sti\r
}\r
\r
+#define VGAREADMAP(x) asm{\r
+ cli\r
+ mov dx,GC_INDEX\r
+ mov al,GC_READMAP\r
+ mov ah,x\r
+ out dx,ax\r
+ sti\r
+}\r
+\r
+#define EGABITMASK(x) asm{\r
+ mov dx,GC_INDEX\r
+ mov ax,GC_BITMASK+256*x\r
+ out dx,ax\r
+ sti\r
+}\r
+#endif\r
void VGAWRITEMODE(byte x)\r
{\r
__asm {\r
-// cli\r
+ cli\r
mov dx,GC_INDEX\r
mov al,GC_MODE\r
out dx,al\r
and al,252\r
or al,x\r
out dx,al\r
-// sti\r
+ sti\r
+ }\r
+}\r
+\r
+void VGAMAPMASK(byte x)\r
+{\r
+ __asm {\r
+ cli\r
+ mov dx,SC_INDEX\r
+ mov al,SC_MAPMASK\r
+ mov ah,x\r
+ out dx,ax\r
+ sti\r
}\r
}\r
\r
void VGAREADMAP(byte x)\r
{\r
__asm {\r
-// cli\r
+ cli\r
mov dx,GC_INDEX\r
mov al,GC_READMAP\r
mov ah,x\r
out dx,ax\r
-// sti\r
+ sti\r
+ }\r
+}\r
+\r
+void VGABITMASK(byte x)\r
+{\r
+ word q = 256*x;\r
+ __asm {\r
+ mov dx,GC_INDEX\r
+ mov ax,GC_BITMASK+q\r
+ out dx,ax\r
+ sti\r
}\r
}\r
\r
projects / 16.git / blobdiff