ref: 84552e7da9b4babc1c885d38088509faa733e7bb
dir: /src/hexen/v_video.c/
// Emacs style mode select -*- C++ -*- //----------------------------------------------------------------------------- // // Copyright(C) 1993-1996 Id Software, Inc. // Copyright(C) 1993-2008 Raven Software // // This program is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public License // as published by the Free Software Foundation; either version 2 // of the License, or (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA // 02111-1307, USA. // //----------------------------------------------------------------------------- #include "h2def.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 + ((*source++) << 8)]; dest += SCREENWIDTH; } column = (column_t *) ((byte *) column + column->length + 4); } } } /* ================== = = V_DrawAltFuzzPatch = = Masks a column based translucent masked pic to the screen. = ================== */ extern byte *tinttable; void V_DrawAltFuzzPatch(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); }