home *** CD-ROM | disk | FTP | other *** search
- /* aux.c */
-
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #if !defined(AMIGA) && !defined(__WIN32__) && !defined(__QUICKDRAW__) && !defined(DOSVGA) && !defined(NeXT) && !defined(__BEOS__)
- #include <X11/Xlib.h>
- #include <X11/Xutil.h>
- #include <X11/keysym.h>
- #endif
- #include <GL/gl.h>
- #include "gltk.h"
- #include "glaux.h"
-
- #ifdef AMIWIN
- #include <pragmas/xlib_pragmas.h>
- extern struct Library *XLibBase;
- #endif
-
- #if defined(__cplusplus) || defined(c_plusplus)
- #define class c_class
- #endif
-
-
- static struct {
- int keyField;
- void (*KeyFunc)(void);
- } keyTable[200];
-
- static struct {
- int mouseField;
- void (*MouseFunc)(AUX_EVENTREC *);
- } mouseDownTable[20], mouseUpTable[20], mouseLocTable[20];
-
- static int keyTableCount = 0;
- static int mouseDownTableCount = 0;
- static int mouseUpTableCount = 0;
- static int mouseLocTableCount = 0;
- static GLenum displayModeType = 0;
- static GLenum displayModePolicy = AUX_MINIMUM_CRITERIA;
- static int displayModeID = 0;
-
- static int animate = 0;
-
-
- #if defined(__WIN32__) || defined(DOSVGA)
- #define NCOLORS 17
- float auxRGBMap[NCOLORS][3] = {
- {0,0,0},
- {0,0,0},
- {0,0,0},
- {0,0,0},
- {0,0,0},
- {0,0,0},
- {0,0,0},
- {0,0,0},
- {0,0,0},
- {0,0,0},
- {1,0,0},
- {0,1,0},
- {1,1,0},
- {0,0,1},
- {1,0,1},
- {0,1,1},
- {1,1,1}
- };
- #else
- #define NCOLORS 8
- float auxRGBMap[NCOLORS][3] = {
- {0,0,0},
- {1,0,0},
- {0,1,0},
- {1,1,0},
- {0,0,1},
- {1,0,1},
- {0,1,1},
- {1,1,1}
- };
- #endif
-
-
- static void DefaultHandleReshape(int w, int h)
- {
- glViewport(0, 0, w, h);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho(0.0, (GLdouble)w, 0.0, (GLdouble)h, -1.0, 1.0);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- }
-
- static void DefaultHandleExpose(int w, int h)
- {
- }
-
- static GLenum MouseLoc(int x, int y, GLenum button)
- {
- AUX_EVENTREC info;
- GLenum flag;
- int i;
-
- flag = GL_FALSE;
- for (i = 0; i < mouseLocTableCount; i++) {
- if ((button & AUX_LEFTBUTTON) == mouseLocTable[i].mouseField) {
- info.event = AUX_MOUSELOC;
- info.data[AUX_MOUSEX] = x;
- info.data[AUX_MOUSEY] = y;
- info.data[AUX_MOUSESTATUS] = AUX_LEFTBUTTON;
- (*mouseLocTable[i].MouseFunc)(&info);
- flag |= GL_TRUE;
- }
- if ((button & AUX_RIGHTBUTTON) == mouseLocTable[i].mouseField) {
- info.event = AUX_MOUSELOC;
- info.data[AUX_MOUSEX] = x;
- info.data[AUX_MOUSEY] = y;
- info.data[AUX_MOUSESTATUS] = AUX_RIGHTBUTTON;
- (*mouseLocTable[i].MouseFunc)(&info);
- flag |= GL_TRUE;
- }
- if ((button & AUX_MIDDLEBUTTON) == mouseLocTable[i].mouseField) {
- info.event = AUX_MOUSELOC;
- info.data[AUX_MOUSEX] = x;
- info.data[AUX_MOUSEY] = y;
- info.data[AUX_MOUSESTATUS] = AUX_MIDDLEBUTTON;
- (*mouseLocTable[i].MouseFunc)(&info);
- flag |= GL_TRUE;
- }
- }
- return flag;
- }
-
- static GLenum MouseUp(int x, int y, GLenum button)
- {
- AUX_EVENTREC info;
- GLenum flag;
- int i;
-
- flag = GL_FALSE;
- for (i = 0; i < mouseUpTableCount; i++) {
- if ((button & AUX_LEFTBUTTON) == mouseUpTable[i].mouseField) {
- info.event = AUX_MOUSEUP;
- info.data[AUX_MOUSEX] = x;
- info.data[AUX_MOUSEY] = y;
- info.data[AUX_MOUSESTATUS] = AUX_LEFTBUTTON;
- (*mouseUpTable[i].MouseFunc)(&info);
- flag |= GL_TRUE;
- }
- if ((button & AUX_RIGHTBUTTON) == mouseUpTable[i].mouseField) {
- info.event = AUX_MOUSEUP;
- info.data[AUX_MOUSEX] = x;
- info.data[AUX_MOUSEY] = y;
- info.data[AUX_MOUSESTATUS] = AUX_RIGHTBUTTON;
- (*mouseUpTable[i].MouseFunc)(&info);
- flag |= GL_TRUE;
- }
- if ((button & AUX_MIDDLEBUTTON) == mouseUpTable[i].mouseField) {
- info.event = AUX_MOUSEUP;
- info.data[AUX_MOUSEX] = x;
- info.data[AUX_MOUSEY] = y;
- info.data[AUX_MOUSESTATUS] = AUX_MIDDLEBUTTON;
- (*mouseUpTable[i].MouseFunc)(&info);
- flag |= GL_TRUE;
- }
- }
- return flag;
- }
-
- static GLenum MouseDown(int x, int y, GLenum button)
- {
- AUX_EVENTREC info;
- GLenum flag;
- int i;
-
- flag = GL_FALSE;
- for (i = 0; i < mouseDownTableCount; i++) {
- if ((button & AUX_LEFTBUTTON) == mouseDownTable[i].mouseField) {
- info.event = AUX_MOUSEDOWN;
- info.data[AUX_MOUSEX] = x;
- info.data[AUX_MOUSEY] = y;
- info.data[AUX_MOUSESTATUS] = AUX_LEFTBUTTON;
- (*mouseDownTable[i].MouseFunc)(&info);
- flag |= GL_TRUE;
- }
- if ((button & AUX_RIGHTBUTTON) == mouseDownTable[i].mouseField) {
- info.event = AUX_MOUSEDOWN;
- info.data[AUX_MOUSEX] = x;
- info.data[AUX_MOUSEY] = y;
- info.data[AUX_MOUSESTATUS] = AUX_RIGHTBUTTON;
- (*mouseDownTable[i].MouseFunc)(&info);
- flag |= GL_TRUE;
- }
- if ((button & AUX_MIDDLEBUTTON) == mouseDownTable[i].mouseField) {
- info.event = AUX_MOUSEDOWN;
- info.data[AUX_MOUSEX] = x;
- info.data[AUX_MOUSEY] = y;
- info.data[AUX_MOUSESTATUS] = AUX_MIDDLEBUTTON;
- (*mouseDownTable[i].MouseFunc)(&info);
- flag |= GL_TRUE;
- }
- }
- return flag;
- }
-
- static GLenum KeyDown(int key, GLenum status)
- {
- GLenum flag;
- int i;
-
- flag = GL_FALSE;
- if (keyTableCount) {
- for (i = 0; i < keyTableCount; i++) {
- if (key == keyTable[i].keyField) {
- (*keyTable[i].KeyFunc)();
- flag |= GL_TRUE;
- }
- }
- }
- return flag;
- }
-
- void auxExposeFunc(void (*Func)(int, int))
- {
- tkExposeFunc(Func);
- }
-
- void auxReshapeFunc(void (*Func)(int, int))
- {
- tkExposeFunc(Func);
- tkReshapeFunc(Func);
- }
-
- void auxIdleFunc(void (*Func)(void))
- {
- tkIdleFunc(Func);
- }
-
- void auxKeyFunc(int key, void (*Func)(void))
- {
- keyTable[keyTableCount].keyField = key;
- keyTable[keyTableCount++].KeyFunc = Func;
- }
-
- void auxMouseFunc(int mouse, int mode, void (*Func)(AUX_EVENTREC *))
- {
- if (mode == AUX_MOUSEDOWN) {
- mouseDownTable[mouseDownTableCount].mouseField = mouse;
- mouseDownTable[mouseDownTableCount++].MouseFunc = Func;
- } else if (mode == AUX_MOUSEUP) {
- mouseUpTable[mouseUpTableCount].mouseField = mouse;
- mouseUpTable[mouseUpTableCount++].MouseFunc = Func;
- } else if (mode == AUX_MOUSELOC) {
- mouseLocTable[mouseLocTableCount].mouseField = mouse;
- mouseLocTable[mouseLocTableCount++].MouseFunc = Func;
- }
- }
-
-
- void auxDeleteMouseFunc( int mouse, int mode, void (*Func)(AUX_EVENTREC *))
- {
- int i, j;
-
- for (i=0;i<mouseLocTableCount;i++) {
- if (mouseLocTable[i].MouseFunc == Func) {
- /* delete this one */
- for (j=i+1;j<mouseLocTableCount;j++) {
- mouseLocTable[j-1].MouseFunc = mouseLocTable[j].MouseFunc;
- mouseLocTable[j-1].mouseField = mouseLocTable[j].mouseField;
- }
- mouseLocTableCount--;
- break;
- }
- }
-
- }
-
-
- static void idle(void)
- {
- /* do nothing */
- }
-
- void auxMainLoop(void (*Func)(void))
- {
- if (animate) {
- auxIdleFunc( idle );
- }
-
- tkDisplayFunc(Func);
- tkExec();
- }
-
- void auxInitPosition(int x, int y, int width, int height)
- {
- tkInitPosition(x, y, width, height);
- }
-
- void auxInitDisplayMode(GLbitfield type)
- {
- displayModeType = type;
- tkInitDisplayMode(type);
- }
-
- void auxInitDisplayModePolicy(GLenum type)
- {
-
- displayModePolicy = type;
- /* tkInitDisplayModePolicy(type);*/
- }
-
- GLenum auxInitDisplayModeID(GLint id)
- {
- /* I don't know what this function's supposed to do. It's just a stub. */
- displayModeID = id;
- /* tkInitDisplayModeID(id);*/
- return (GLenum) id;
- }
-
- GLenum auxInitWindow(char *title)
- {
- int useDoubleAsSingle = 0;
-
- if (tkInitWindow(title) == GL_FALSE) {
- if (AUX_WIND_IS_SINGLE(displayModeType)) {
- tkInitDisplayMode(displayModeType|AUX_DOUBLE);
- if (tkInitWindow(title) == GL_FALSE) {
- return GL_FALSE;
- }
- fprintf(stderr, "Can't initialize a single buffer visual.\n");
- fprintf(stderr, "Will use a double buffer visual instead,");
- fprintf(stderr, "only drawing into the front buffer.\n");
- displayModeType = displayModeType | AUX_DOUBLE;
- useDoubleAsSingle = 1;
- }
- }
- tkReshapeFunc(DefaultHandleReshape);
- tkExposeFunc(DefaultHandleExpose);
- tkMouseUpFunc(MouseUp);
- tkMouseDownFunc(MouseDown);
- tkMouseMoveFunc(MouseLoc);
- tkKeyDownFunc(KeyDown);
- auxKeyFunc(AUX_ESCAPE, auxQuit);
- glClearColor(0.0, 0.0, 0.0, 1.0);
- glClearIndex(0);
- glLoadIdentity();
- if (useDoubleAsSingle) {
- glReadBuffer(GL_FRONT);
- glDrawBuffer(GL_FRONT);
- }
- return GL_TRUE;
- }
-
- void auxCloseWindow(void)
- {
- tkCloseWindow();
- keyTableCount = 0;
- mouseDownTableCount = 0;
- mouseUpTableCount = 0;
- mouseLocTableCount = 0;
- }
-
- void auxQuit(void)
- {
- tkQuit();
- }
-
- void auxSwapBuffers(void)
- {
- tkSwapBuffers();
- }
-
- #if !defined(AMIGA) && !defined(__WIN32__) && !defined(__QUICKDRAW__) && !defined(DOSVGA) && !defined(NeXT) && !defined(__BEOS__)
- /* for systems with X only... */
- Display *auxXDisplay(void)
- {
- Display *ptr;
-
- tkGetSystem(TK_X_DISPLAY, (void *)&ptr);
- return ptr;
- }
-
- Window auxXWindow(void)
- {
- Window ptr;
-
- tkGetSystem(TK_X_WINDOW, (void *)&ptr);
- return ptr;
- }
- #endif
-
- GLenum auxGetDisplayModePolicy(void)
- {
- return displayModePolicy;
- /* return tkGetDisplayModePolicy();*/
- }
-
- GLint auxGetDisplayModeID(void)
- {
- /* return tkGetDisplayModeID();*/
- return displayModeID;
- }
-
- GLenum auxGetDisplayMode(void)
- {
- /* return tkGetDisplayMode();*/
- return displayModeType;
- }
-
- void auxSetOneColor(int index, float r, float g, float b)
- {
- tkSetOneColor(index, r, g, b);
- }
-
- void auxSetFogRamp(int density, int startIndex)
- {
- tkSetFogRamp(density, startIndex);
- }
-
- void auxSetGreyRamp(void)
- {
- tkSetGreyRamp();
- }
-
- void auxSetRGBMap(int size, float *rgb)
- {
- tkSetRGBMap(size, rgb);
- }
-
- int auxGetColorMapSize(void)
- {
-
- return tkGetColorMapSize();;
- }
-
- void auxGetMouseLoc(int *x, int *y)
- {
- tkGetMouseLoc(x, y);
- }
-
- void auxGetScreenSize( GLint *width, GLint *height )
- {
- #if defined(DOSVGA)
- /* This is a kludge! */
- *width = 1280;
- *height = 1024;
- #else
- *width = 320;
- *height = 200;
- #endif
- }
-
-
- void auxAnimation( GLint state )
- {
- animate = state;
- }
-
-