diff options
Diffstat (limited to 'src/heretic/v_video.c')
| -rw-r--r-- | src/heretic/v_video.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/src/heretic/v_video.c b/src/heretic/v_video.c new file mode 100644 index 00000000..6ff641f6 --- /dev/null +++ b/src/heretic/v_video.c @@ -0,0 +1,200 @@ + +// V_video.c + +#include "DoomDef.h" + +#define SC_INDEX 0x3c4 + +byte *screen; +int dirtybox[4]; +int usegamma; + +byte gammatable[5][256] = +{ +{1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255}, + +{2,4,5,7,8,10,11,12,14,15,16,18,19,20,21,23,24,25,26,27,29,30,31,32,33,34,36,37,38,39,40,41,42,44,45,46,47,48,49,50,51,52,54,55,56,57,58,59,60,61,62,63,64,65,66,67,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,163,164,165,166,167,168,169,170,171,172,173,174,175,175,176,177,178,179,180,181,182,183,184,185,186,186,187,188,189,190,191,192,193,194,195,196,196,197,198,199,200,201,202,203,204,205,205,206,207,208,209,210,211,212,213,214,214,215,216,217,218,219,220,221,222,222,223,224,225,226,227,228,229,230,230,231,232,233,234,235,236,237,237,238,239,240,241,242,243,244,245,245,246,247,248,249,250,251,252,252,253,254,255}, + +{4,7,9,11,13,15,17,19,21,22,24,26,27,29,30,32,33,35,36,38,39,40,42,43,45,46,47,48,50,51,52,54,55,56,57,59,60,61,62,63,65,66,67,68,69,70,72,73,74,75,76,77,78,79,80,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,133,134,135,136,137,138,139,140,141,142,143,144,144,145,146,147,148,149,150,151,152,153,153,154,155,156,157,158,159,160,160,161,162,163,164,165,166,166,167,168,169,170,171,172,172,173,174,175,176,177,178,178,179,180,181,182,183,183,184,185,186,187,188,188,189,190,191,192,193,193,194,195,196,197,197,198,199,200,201,201,202,203,204,205,206,206,207,208,209,210,210,211,212,213,213,214,215,216,217,217,218,219,220,221,221,222,223,224,224,225,226,227,228,228,229,230,231,231,232,233,234,235,235,236,237,238,238,239,240,241,241,242,243,244,244,245,246,247,247,248,249,250,251,251,252,253,254,254,255}, + +{8,12,16,19,22,24,27,29,31,34,36,38,40,41,43,45,47,49,50,52,53,55,57,58,60,61,63,64,65,67,68,70,71,72,74,75,76,77,79,80,81,82,84,85,86,87,88,90,91,92,93,94,95,96,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,135,136,137,138,139,140,141,142,143,143,144,145,146,147,148,149,150,150,151,152,153,154,155,155,156,157,158,159,160,160,161,162,163,164,165,165,166,167,168,169,169,170,171,172,173,173,174,175,176,176,177,178,179,180,180,181,182,183,183,184,185,186,186,187,188,189,189,190,191,192,192,193,194,195,195,196,197,197,198,199,200,200,201,202,202,203,204,205,205,206,207,207,208,209,210,210,211,212,212,213,214,214,215,216,216,217,218,219,219,220,221,221,222,223,223,224,225,225,226,227,227,228,229,229,230,231,231,232,233,233,234,235,235,236,237,237,238,238,239,240,240,241,242,242,243,244,244,245,246,246,247,247,248,249,249,250,251,251,252,253,253,254,254,255}, + +{16,23,28,32,36,39,42,45,48,50,53,55,57,60,62,64,66,68,69,71,73,75,76,78,80,81,83,84,86,87,89,90,92,93,94,96,97,98,100,101,102,103,105,106,107,108,109,110,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,128,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,143,144,145,146,147,148,149,150,150,151,152,153,154,155,155,156,157,158,159,159,160,161,162,163,163,164,165,166,166,167,168,169,169,170,171,172,172,173,174,175,175,176,177,177,178,179,180,180,181,182,182,183,184,184,185,186,187,187,188,189,189,190,191,191,192,193,193,194,195,195,196,196,197,198,198,199,200,200,201,202,202,203,203,204,205,205,206,207,207,208,208,209,210,210,211,211,212,213,213,214,214,215,216,216,217,217,218,219,219,220,220,221,221,222,223,223,224,224,225,225,226,227,227,228,228,229,229,230,230,231,232,232,233,233,234,234,235,235,236,236,237,237,238,239,239,240,240,241,241,242,242,243,243,244,244,245,245,246,246,247,247,248,248,249,249,250,250,251,251,252,252,253,254,254,255,255} +}; + +//--------------------------------------------------------------------------- +// +// PROC V_DrawPatch +// +// Draws a column based masked pic to the screen. +// +//--------------------------------------------------------------------------- + +void V_DrawPatch(int x, int y, patch_t *patch) +{ + int count; + int col; + column_t *column; + byte *desttop; + byte *dest; + byte *source; + int w; + + y -= SHORT(patch->topoffset); + x -= SHORT(patch->leftoffset); + if(x < 0 || x+SHORT(patch->width) > SCREENWIDTH || y < 0 + || y+SHORT(patch->height) > SCREENHEIGHT) + { + I_Error("Bad V_DrawPatch"); + } + col = 0; + desttop = screen+y*SCREENWIDTH+x; + w = SHORT(patch->width);
+ for(; col < w; x++, col++, desttop++) + { + column = (column_t *)((byte *)patch+LONG(patch->columnofs[col])); + // Step through the posts in a column + while(column->topdelta != 0xff) + { + source = (byte *)column+3; + dest = desttop+column->topdelta*SCREENWIDTH; + count = column->length; + while(count--) + { + *dest = *source++; + dest += SCREENWIDTH; + } + column = (column_t *)((byte *)column+column->length+4); + } + } +} + +/* +================== += += V_DrawFuzzPatch += += Masks a column based translucent masked pic to the screen. += +================== +*/ +extern byte *tinttable; +
+void V_DrawFuzzPatch (int x, int y, patch_t *patch)
+{
+ int count,col;
+ column_t *column;
+ byte *desttop, *dest, *source;
+ int w;
+
+ y -= SHORT(patch->topoffset);
+ x -= SHORT(patch->leftoffset);
+ + if (x<0||x+SHORT(patch->width) >SCREENWIDTH || y<0 || y+SHORT(patch->height)>SCREENHEIGHT
)
+ I_Error ("Bad V_DrawPatch");
+
+ col = 0;
+ desttop = screen+y*SCREENWIDTH+x;
+
+ w = SHORT(patch->width);
+ for ( ; col<w ; x++, col++, desttop++)
+ {
+ column = (column_t *)((byte *)patch + LONG(patch->columnofs[col]));
+
+// step through the posts in a column
+
+ while (column->topdelta != 0xff )
+ {
+ source = (byte *)column + 3;
+ dest = desttop + column->topdelta*SCREENWIDTH;
+ count = column->length;
+
+ while (count--)
+ {
+ *dest = tinttable[((*dest)<<8) + *source++];
+ dest += SCREENWIDTH;
+ }
+ column = (column_t *)( (byte *)column + column->length
++ 4 );
+ }
+ }
+}
+ +/*
+==================
+=
+= V_DrawShadowedPatch
+=
+= Masks a column based masked pic to the screen.
+=
+==================
+*/
+
+void V_DrawShadowedPatch(int x, int y, patch_t *patch)
+{
+ int count,col;
+ column_t *column;
+ byte *desttop, *dest, *source;
+ byte *desttop2, *dest2;
+ int w;
+
+ y -= SHORT(patch->topoffset);
+ x -= SHORT(patch->leftoffset);
+ + if (x<0||x+SHORT(patch->width) >SCREENWIDTH || y<0 || y+SHORT(patch->height)>SCREENHEIGHT
)
+ I_Error ("Bad V_DrawPatch");
+
+ col = 0;
+ desttop = screen+y*SCREENWIDTH+x;
+ desttop2 = screen+(y+2)*SCREENWIDTH+x+2; +
+ w = SHORT(patch->width);
+ for ( ; col<w ; x++, col++, desttop++, desttop2++)
+ {
+ column = (column_t *)((byte *)patch + LONG(patch->columnofs[col]));
+
+// step through the posts in a column
+
+ while (column->topdelta != 0xff )
+ {
+ source = (byte *)column + 3;
+ dest = desttop + column->topdelta*SCREENWIDTH;
+ dest2 = desttop2 + column->topdelta*SCREENWIDTH; + count = column->length;
+
+ while (count--)
+ {
+ *dest2 = tinttable[((*dest2)<<8)];
+ dest2 += SCREENWIDTH; + *dest = *source++;
+ dest += SCREENWIDTH;
+ + }
+ column = (column_t *)( (byte *)column + column->length
++ 4 );
+ }
+ }
+} + +//--------------------------------------------------------------------------- +// +// PROC V_DrawRawScreen +// +//--------------------------------------------------------------------------- + +void V_DrawRawScreen(byte *raw) +{ + memcpy(screen, raw, SCREENWIDTH*SCREENHEIGHT); +} + +//--------------------------------------------------------------------------- +// +// PROC V_Init +// +//--------------------------------------------------------------------------- + +void V_Init(void) +{ + // I_AllocLow will put screen in low dos memory on PCs. + screen = I_AllocLow(SCREENWIDTH*SCREENHEIGHT); +} |