+++ /dev/null
-/*
- * Mesa 3-D graphics library
- * Version: 6.5
- * Copyright (C) 1995-2006 Brian Paul
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/*
- * Library for glut using mesa fbdev driver
- *
- * Written by Sean D'Epagnier (c) 2006
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
-#include <linux/fb.h>
-
-#include <GL/glut.h>
-
-#include "internal.h"
-
-#define MENU_FONT_WIDTH 9
-#define MENU_FONT_HEIGHT 15
-#define MENU_FONT GLUT_BITMAP_9_BY_15
-#define SUBMENU_OFFSET 20
-
-struct GlutMenu *Menus;
-int ActiveMenu;
-int CurrentMenu;
-
-static double MenuProjection[16];
-
-static int AttachedMenus[3];
-static int NumMenus = 1;
-static int SelectedMenu;
-
-void InitializeMenus(void)
-{
- glPushAttrib(GL_TRANSFORM_BIT);
- glMatrixMode(GL_PROJECTION);
- glPushMatrix();
- glLoadIdentity();
- gluOrtho2D(0.0, VarInfo.xres, VarInfo.yres, 0.0);
- glGetDoublev(GL_PROJECTION_MATRIX, MenuProjection);
-
- glPopMatrix();
- glPopAttrib();
-}
-
-void FreeMenus(void)
-{
- int i, j;
-
- for(i = 1; i<NumMenus; i++) {
- for(j = 0; j<Menus[i].NumItems; j++)
- free(Menus[i].Items[j].name);
- free(Menus[i].Items);
- }
-
- free(Menus);
-}
-
-int TryMenu(int button, int pressed)
-{
- if(ActiveMenu && !pressed) {
- ActiveMenu = 0;
- CloseMenu();
- Redisplay = 1;
- return 1;
- }
-
- if(AttachedMenus[button] && pressed) {
- ActiveMenu = AttachedMenus[button];
- OpenMenu();
- Redisplay = 1;
- return 1;
- }
- return 0;
-}
-
-static int DrawMenu(int menu, int x, int *y)
-{
- int i;
- int ret = 1;
-
- for(i=0; i < Menus[menu].NumItems; i++) {
- char *s = Menus[menu].Items[i].name;
- int a = 0;
- if(MouseY >= *y && MouseY < *y + MENU_FONT_HEIGHT &&
- MouseX >= x && MouseX < x + Menus[menu].width) {
- a = 1;
- SelectedMenu = menu;
- ret = 0;
- Menus[menu].selected = i;
- glColor3f(1,0,0);
- } else
- glColor3f(1,1,1);
-
- *y += MENU_FONT_HEIGHT;
- glRasterPos2i(x, *y);
- for(; *s; s++)
- glutBitmapCharacter(MENU_FONT, *s);
-
- if(Menus[menu].selected == i)
- if(Menus[menu].Items[i].submenu)
- if(DrawMenu(Menus[menu].Items[i].submenu, x
- + SUBMENU_OFFSET, y)) {
- if(!a)
- Menus[menu].selected = -1;
- } else
- ret = 0;
- }
- return ret;
-}
-
-void DrawMenus(void)
-{
- int x, y;
-
- if(GameMode)
- return;
-
- x = Menus[ActiveMenu].x;
- y = Menus[ActiveMenu].y;
-
- /* save old settings */
- glPushAttrib(GL_COLOR_BUFFER_BIT | GL_CURRENT_BIT
- | GL_ENABLE_BIT | GL_VIEWPORT_BIT);
-
- glMatrixMode(GL_MODELVIEW);
- glPushMatrix();
- glLoadIdentity();
-
- glMatrixMode(GL_PROJECTION);
- glPushMatrix();
- glLoadMatrixd(MenuProjection);
- glViewport(0, 0, VarInfo.xres, VarInfo.yres);
-
- glDisable(GL_DEPTH_TEST);
- glDisable(GL_ALPHA_TEST);
- glDisable(GL_LIGHTING);
- glDisable(GL_FOG);
- glDisable(GL_TEXTURE_2D);
- glEnable(GL_COLOR_LOGIC_OP);
- glLogicOp(GL_AND_REVERSE);
-
- if(DrawMenu(ActiveMenu, x, &y))
- Menus[ActiveMenu].selected = -1;
-
- /* restore settings */
- glPopMatrix();
- glMatrixMode(GL_MODELVIEW);
- glPopMatrix();
-
- glPopAttrib();
-}
-
-void OpenMenu(void)
-{
- if(MenuStatusFunc)
- MenuStatusFunc(GLUT_MENU_IN_USE, MouseX, MouseY);
- if(MenuStateFunc)
- MenuStateFunc(GLUT_MENU_IN_USE);
- Menus[ActiveMenu].x = MouseX-Menus[ActiveMenu].width/2;
-
- if(Menus[ActiveMenu].x < 0)
- Menus[ActiveMenu].x = 0;
- if(Menus[ActiveMenu].x + Menus[ActiveMenu].width >= VarInfo.xres)
- Menus[ActiveMenu].x = VarInfo.xres - Menus[ActiveMenu].width - 1;
-
- Menus[ActiveMenu].y = MouseY-Menus[ActiveMenu].NumItems*MENU_FONT_HEIGHT/2;
- Menus[ActiveMenu].selected = -1;
-}
-
-void CloseMenu(void)
-{
- if(MenuStatusFunc)
- MenuStatusFunc(GLUT_MENU_NOT_IN_USE, MouseX, MouseY);
- if(MenuStateFunc)
- MenuStateFunc(GLUT_MENU_NOT_IN_USE);
- if(SelectedMenu > 0) {
- int selected = Menus[SelectedMenu].selected;
- if(selected >= 0)
- if(Menus[SelectedMenu].Items[selected].submenu == 0)
- Menus[SelectedMenu].func(Menus[SelectedMenu].Items
- [selected].value);
- }
-
-}
-
-/* glut menu functions */
-
-int glutCreateMenu(void (*func)(int value))
-{
- CurrentMenu = NumMenus;
- NumMenus++;
- Menus = realloc(Menus, sizeof(*Menus) * NumMenus);
- Menus[CurrentMenu].NumItems = 0;
- Menus[CurrentMenu].Items = NULL;
- Menus[CurrentMenu].func = func;
- Menus[CurrentMenu].width = 0;
- return CurrentMenu;
-}
-
-void glutSetMenu(int menu)
-{
- CurrentMenu = menu;
-}
-
-int glutGetMenu(void)
-{
- return CurrentMenu;
-}
-
-void glutDestroyMenu(int menu)
-{
- if(menu == CurrentMenu)
- CurrentMenu = 0;
-}
-
-static void NameMenuEntry(int entry, const char *name)
-{
- int cm = CurrentMenu;
- if(!(Menus[cm].Items[entry-1].name = realloc(Menus[cm].Items[entry-1].name,
- strlen(name) + 1))) {
- sprintf(exiterror, "realloc failed in NameMenuEntry\n");
- exit(0);
- }
- strcpy(Menus[cm].Items[entry-1].name, name);
- if(strlen(name) * MENU_FONT_WIDTH > Menus[cm].width)
- Menus[cm].width = strlen(name) * MENU_FONT_WIDTH;
-}
-
-static int AddMenuItem(const char *name)
-{
- int cm = CurrentMenu;
- int item = Menus[cm].NumItems++;
- if(!(Menus[cm].Items = realloc(Menus[cm].Items,
- Menus[cm].NumItems * sizeof(*Menus[0].Items)))) {
- sprintf(exiterror, "realloc failed in AddMenuItem\n");
- exit(0);
- }
- Menus[cm].Items[item].name = NULL;
- NameMenuEntry(item+1, name);
- return item;
-}
-
-void glutAddMenuEntry(const char *name, int value)
-{
- int item = AddMenuItem(name);
- Menus[CurrentMenu].Items[item].value = value;
- Menus[CurrentMenu].Items[item].submenu = 0;
-}
-
-void glutAddSubMenu(const char *name, int menu)
-{
- int item = AddMenuItem(name);
- if(menu == CurrentMenu) {
- sprintf(exiterror, "Recursive menus not supported\n");
- exit(0);
- }
- Menus[CurrentMenu].Items[item].submenu = menu;
-}
-
-void glutChangeToMenuEntry(int entry, const char *name, int value)
-{
- NameMenuEntry(entry, name);
- Menus[CurrentMenu].Items[entry-1].value = value;
- Menus[CurrentMenu].Items[entry-1].submenu = 0;
-}
-
-void glutChangeToSubMenu(int entry, const char *name, int menu)
-{
- NameMenuEntry(entry, name);
- Menus[CurrentMenu].Items[entry-1].submenu = menu;
-}
-
-void glutRemoveMenuItem(int entry)
-{
- memmove(Menus[CurrentMenu].Items + entry - 1,
- Menus[CurrentMenu].Items + entry,
- sizeof(*Menus[0].Items) * (Menus[CurrentMenu].NumItems - entry));
- Menus[CurrentMenu].NumItems--;
-}
-
-void glutAttachMenu(int button)
-{
- AttachedMenus[button] = CurrentMenu;
-}
-
-void glutDetachMenu(int button)
-{
- AttachedMenus[button] = 0;
-}
projects / mesa.git / blobdiff