/*----------------------------------------------------------------------------* | This file is part of DEU (Doom Editing Utilities), created by the DEU team:| | Raphael Quinet, Brendon Wyber, Ted Vessenes and others. See README.1ST or | | the "about" dialog box for full credits. | | | | DEU is an open project: if you think that you can contribute, please join | | the DEU team. You will be credited for any code (or ideas) included in | | the next version of the program. | | | | If you want to make any modifications and re-distribute them on your own, | | you must follow the conditions of the DEU license. Read the file LICENSE | | in this directory or README.1ST in the top directory. If do not have a | | copy of these files, you can request them from any member of the DEU team, | | or by mail: Raphael Quinet, Rue des Martyrs 9, B-4550 Nandrin (Belgium). | | | | This program comes with absolutely no warranty. Use it at your own risks! | *----------------------------------------------------------------------------* G_GFXVGA.C - Graphical routines for Linux SVGAlib Functions written by Mike thomas and Raphael Quinet and adapted for Linux SVGAlib by Sam Lantinga (slouken@cs.ucdavis.edu) */ /* the includes */ #include "deu.h" #include #include "d_main.h" #include "d_misc.h" #include "d_config.h" #include "d_wads.h" #include "g_mouse.h" #include "g_colcnv.h" #include "g_gfx.h" #define LIBRARY static #include "vgaxor.c" #include "keyboard.c" /* the global variables */ Int16 OrigX; /* the X origin */ Int16 OrigY; /* the Y origin */ float Scale; /* the scale value */ UInt16 PointerX; /* X position of pointer */ UInt16 PointerY; /* Y position of pointer */ UInt16 ScrMaxX; /* maximum X screen coord */ UInt16 ScrMaxY; /* maximum Y screen coord */ UInt16 ScrCenterX; /* X coord of screen center */ UInt16 ScrCenterY; /* Y coord of screen center */ /* almost private: shared with g_colcnv.c */ int num_colors = -1; /* number of colors available */ /* almost private: shared with g_moux11.c */ int x_pointerx; int x_pointery; unsigned int x_buttons; unsigned int x_modifiers; long x_inputeventmask; /* Initialise the graphics display. */ void InitGfx(void) { /* We can use a mouse! */ vga_setmousesupport(1); if ( Init_800x600() < 0 ) ProgError("800 x 600 resolution not supported on display!"); if ( Init_Keyboard() < 0 ) { End_800x600(); ProgError("Can't initialize keyboard!"); } num_colors = 256; /* maybe support other visuals later? */ if (num_colors >= 256) { SetDoomPalette(0); } ScrMaxX = (UInt16)SCREEN_WIDTH - 1; ScrMaxY = (UInt16)SCREEN_HEIGHT - 1; ScrCenterX = ScrMaxX / 2; ScrCenterY = ScrMaxY / 2; SetColor(WHITE); InitMouseDriver(); } /* Terminate the graphics display. */ void TermGfx(void) { if (num_colors > 0) { if (UseMouse) HideMousePointer(); End_Keyboard(); End_800x600(); num_colors = -1; } } /* Returns TRUE if DEU is in graphics mode, FALSE if it is in text mode. */ Bool InGfxMode(void) { return (num_colors > 0); } /* Clear the screen. */ void ClearScreen(void) { Clear_Area(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT); } /* Set the line drawing mode: normal or XOR. */ void SetLineDrawingMode(int mode) { switch (mode) { case DRAW_NORMAL: Set_DrawMode(DRAW_COPY); break; case DRAW_XOR: Set_DrawMode(DRAW_MXOR); break; default: ProgError("BUG: Invalid line drawing mode: %d", mode); break; } } /* Set the line style: width and pattern (solid, dotted, dashed). */ void SetLinePatternAndWidth(int pattern, int width) { if (width != 1 && width != 3) ProgError("BUG: Invalid line width: %d", width); Set_LineWidth(width); switch (pattern) { case SOLID_PATTERN: Set_LineIncr(1, 0); break; case DOTTED_PATTERN: Set_LineIncr(2, 2); break; case DASHED_PATTERN: Set_LineIncr(5, 3); break; default: ProgError("BUG: Invalid line pattern: %d", pattern); break; } } /* Draw a line on the screen from map coords. */ void DrawMapLine(Int16 mapXstart, Int16 mapYstart, Int16 mapXend, Int16 mapYend) { Draw_Line(SCREENX(mapXstart), SCREENY(mapYstart), SCREENX(mapXend), SCREENY(mapYend)); } /* Draw a circle on the screen from map coords. */ void DrawMapCircle(Int16 mapXcenter, Int16 mapYcenter, Int16 mapRadius) { Draw_Circle(SCREENX(mapXcenter), SCREENY(mapYcenter), (int)(mapRadius * Scale)); } /* Draw an arrow on the screen from map coords. */ void DrawMapVector(Int16 mapXstart, Int16 mapYstart, Int16 mapXend, Int16 mapYend) { Int16 scrXstart = SCREENX(mapXstart); Int16 scrYstart = SCREENY(mapYstart); Int16 scrXend = SCREENX(mapXend); Int16 scrYend = SCREENY(mapYend); double r = hypot((double) (scrXstart - scrXend), (double) (scrYstart - scrYend)); Int16 scrXoff = (r >= 1.0) ? (Int16) ((scrXstart - scrXend) * 8.0 / r * Scale) : 0; Int16 scrYoff = (r >= 1.0) ? (Int16) ((scrYstart - scrYend) * 8.0 / r * Scale) : 0; Draw_Line(scrXstart, scrYstart, scrXend, scrYend); scrXstart = scrXend + 2 * scrXoff; scrYstart = scrYend + 2 * scrYoff; Draw_Line(scrXstart - scrYoff, scrYstart + scrXoff, scrXend, scrYend); Draw_Line(scrXstart + scrYoff, scrYstart - scrXoff, scrXend, scrYend); } /* Draw an arrow on the screen from map coords and angle (0 - 65535). */ void DrawMapArrow(Int16 mapXstart, Int16 mapYstart, UInt16 angle) { Int16 mapXend = mapXstart + (Int16) (50 * cos(angle / 10430.37835)); Int16 mapYend = mapYstart + (Int16) (50 * sin(angle / 10430.37835)); Int16 scrXstart = SCREENX(mapXstart); Int16 scrYstart = SCREENY(mapYstart); Int16 scrXend = SCREENX(mapXend); Int16 scrYend = SCREENY(mapYend); double r = hypot(scrXstart - scrXend, scrYstart - scrYend); Int16 scrXoff = (r >= 1.0) ? (Int16) ((scrXstart - scrXend) * 8.0 / r * Scale) : 0; Int16 scrYoff = (r >= 1.0) ? (Int16) ((scrYstart - scrYend) * 8.0 / r * Scale) : 0; Draw_Line(scrXstart, scrYstart, scrXend, scrYend); scrXstart = scrXend + 2 * scrXoff; scrYstart = scrYend + 2 * scrYoff; Draw_Line(scrXstart - scrYoff, scrYstart + scrXoff, scrXend, scrYend); Draw_Line(scrXstart + scrYoff, scrYstart - scrXoff, scrXend, scrYend); } /* Draw a pixel on the screen. */ void DrawScreenPixel(Int16 X, Int16 Y) { Draw_Pixel(X, Y); } /* Draw a line on the screen from screen coords. */ void DrawScreenLine(Int16 Xstart, Int16 Ystart, Int16 Xend, Int16 Yend) { Draw_Line(Xstart, Ystart, Xend, Yend); } /* Draw a rectangle on the screen from screen coords. */ void DrawScreenRectangle(Int16 Xstart, Int16 Ystart, Int16 Xend, Int16 Yend) { Draw_Rect(Xstart, Ystart, Xend, Yend); } /* Draw a filled in box on the screen from screen coords. */ void DrawScreenBox(Int16 Xstart, Int16 Ystart, Int16 Xend, Int16 Yend) { Fill_Rect(Xstart, Ystart, Xend, Yend); } /* Draw a filled-in 3D-box on the screen from screen coords. */ void DrawScreenBox3D(Int16 Xstart, Int16 Ystart, Int16 Xend, Int16 Yend) { ++Xstart; ++Ystart; ++Xend; ++Yend; SetColor(LIGHTGRAY); Fill_Rect(Xstart + 1, Ystart + 1, Xend - 1, Yend - 1); SetColor(DARKGRAY); Draw_Line(Xstart, Yend, Xend, Yend); Draw_Line(Xend, Ystart, Xend, Yend); if (Xend - Xstart > 20 && Yend - Ystart > 20) { Draw_Line(Xstart + 1, Yend - 1, Xend - 1, Yend - 1); Draw_Line(Xend - 1, Ystart + 1, Xend - 1, Yend - 1); SetColor(WHITE); Draw_Line(Xstart + 1, Ystart + 1, Xstart + 1, Yend - 1); Draw_Line(Xstart + 1, Ystart + 1, Xend - 1, Ystart + 1); } SetColor(WHITE); Draw_Line(Xstart, Ystart, Xend, Ystart); Draw_Line(Xstart, Ystart, Xstart, Yend); SetColor(BLACK); } /* Draw a sunken 3D-box on the screen from screen coords. */ void DrawScreenBoxSunken(Int16 Xstart, Int16 Ystart, Int16 Xend, Int16 Yend) { SetColor(LIGHTGRAY); Fill_Rect(Xstart + 1, Ystart + 1, Xend - 1, Yend - 1); SetColor(WHITE); Draw_Line(Xstart, Yend, Xend, Yend); Draw_Line(Xend, Ystart, Xend, Yend); if (Xend - Xstart > 20 && Yend - Ystart > 20) { Draw_Line(Xstart + 1, Yend - 1, Xend - 1, Yend - 1); Draw_Line(Xend - 1, Ystart + 1, Xend - 1, Yend - 1); SetColor(DARKGRAY); Draw_Line(Xstart + 1, Ystart + 1, Xstart + 1, Yend - 1); Draw_Line(Xstart + 1, Ystart + 1, Xend - 1, Ystart + 1); } SetColor(DARKGRAY); Draw_Line(Xstart, Ystart, Xend, Ystart); Draw_Line(Xstart, Ystart, Xstart, Yend); SetColor(WHITE); } /* Draw a hollow 3D-box on the screen from screen coords. */ void DrawScreenBoxHollow(Int16 Xstart, Int16 Ystart, Int16 Xend, Int16 Yend) { SetColor(BLACK); Fill_Rect(Xstart + 1, Ystart + 1, Xend - 1, Yend - 1); SetColor(WHITE); Draw_Line(Xstart, Yend, Xend, Yend); Draw_Line(Xend, Ystart, Xend, Yend); if (Xend - Xstart > 20 && Yend - Ystart > 20) { Draw_Line(Xstart + 1, Yend - 1, Xend - 1, Yend - 1); Draw_Line(Xend - 1, Ystart + 1, Xend - 1, Yend - 1); SetColor(DARKGRAY); Draw_Line(Xstart + 1, Ystart + 1, Xstart + 1, Yend - 1); Draw_Line(Xstart + 1, Ystart + 1, Xend - 1, Ystart + 1); } SetColor(DARKGRAY); Draw_Line(Xstart, Ystart, Xend, Ystart); Draw_Line(Xstart, Ystart, Xstart, Yend); SetColor(WHITE); } /* Draw a meter bar on the screen from screen coords (in a hollow box); max. value = 1.0 */ void DrawScreenMeter(Int16 Xstart, Int16 Ystart, Int16 Xend, Int16 Yend, float value) { if (value < 0.0) value = 0.0; if (value > 1.0) value = 1.0; SetColor(BLACK); Fill_Rect(Xstart + 1 + (Int16) ((Xend - Xstart - 2) * value), Ystart + 1, Xend - 1, Yend - 1); SetColor(LIGHTGREEN); Fill_Rect(Xstart + 1, Ystart + 1, Xstart + 1 + (Int16) ((Xend - Xstart - 2) * value), Yend - 1); } /* Write text to the screen. */ void DrawScreenText(Int16 Xstart, Int16 Ystart, char *msg, ...) { static Int16 lastX; static Int16 lastY; char temp[120]; va_list args; va_start(args, msg); vsprintf(temp, msg, args); va_end(args); if (Xstart < 0) Xstart = lastX; if (Ystart < 0) Ystart = lastY; Draw_Text(Xstart, Ystart, temp); lastX = Xstart; lastY = Ystart + 10; /* or textheight("W") ? */ } /* Draw a bitmap on the screen (from data in "flat" format). */ void DrawScreenBitmap(Int16 Xstart, Int16 Ystart, Int16 Xend, Int16 Yend, Int8 far *pixels) { Int16 i, j; if (num_colors == 256) { /*! this is very slow and has to be optimized later */ for (i = Ystart; i <= Yend; i++) for (j = Xstart; j <= Xend; j++) { Set_Color(*pixels); Draw_Pixel(j, i); pixels++; } } else { for (i = Ystart; i <= Yend; i++) for (j = Xstart; j <= Xend; j++) { Set_Color(TranslateTo16Color(*pixels)); Draw_Pixel(j, i); pixels++; } } } /* Draw (or erase) the pointer if we aren't using the mouse. */ void DrawPointer(Bool rulers) { UInt16 r; /* use XOR mode : drawing the pointer twice erases it */ SetLineDrawingMode(DRAW_XOR); /* draw the pointer */ /*! optimize this later: replace DrawScreenLine by direct GL funcs. */ if (rulers) { SetColor(MAGENTA); r = (UInt16) (512 * Scale); Draw_Circle(PointerX, PointerY, r); r >>= 1; Draw_Circle(PointerX, PointerY, r); r >>= 1; Draw_Circle(PointerX, PointerY, r); r >>= 1; Draw_Circle(PointerX, PointerY, r); r = (UInt16) (1024 * Scale); Draw_Line(PointerX - r, PointerY, PointerX + r, PointerY); Draw_Line(PointerX, PointerY - r, PointerX, PointerY + r); } else { SetColor(YELLOW); Draw_Line(PointerX - 15, PointerY - 13, PointerX + 15, PointerY + 13); Draw_Line(PointerX - 15, PointerY + 13, PointerX + 15, PointerY - 13); } /* restore normal write mode */ SetLineDrawingMode(DRAW_NORMAL); } /* Load one "playpal" palette and change all palette colours. */ void SetDoomPalette(int playpalnum) { MDirPtr dir; UInt8 huge *dpal; int n; if (playpalnum < 0 && playpalnum > 13) return; dir = FindMasterDir(MasterDir, "PLAYPAL"); if (dir) { dpal = (UInt8 huge *)GetFarMemory(768 * sizeof(UInt8)); BasicWadSeek(dir->wadfile, dir->dir.start); for (n = 0; n <= playpalnum; n++) BasicWadRead(dir->wadfile, dpal, 768L); /* gamma correction? for (n = 0; n < 768; n++) dpal[n] = (UInt8) (pow(((double) dpal[n] / 255.0), 0.7) * 255); */ if (Config.forceWhite == TRUE) { dpal[3 * WHITE] = 255; dpal[3 * WHITE + 1] = 255; dpal[3 * WHITE + 2] = 255; } Set_Palette((Color *)dpal); FreeFarMemory(dpal); } } /* Set the current drawing color (from one of the 16 color constants). */ void SetColor(int color16) { if (num_colors >= 256) Set_Color(TranslateToDoomColor(color16)); } /* Set the current drawing color (from Doom palette #0). */ void SetDoomColor(int color256) { if (num_colors < 256) Set_Color(TranslateTo16Color(color256)); } /* end of file */