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flightgear/Cockpit/panel.cxx
curt f450f4a9af Converted "class fgVIEW" to "class FGView" and updated to make data 
members private and make required accessor functions.
1998-12-09 18:50:12 +00:00

696 lines
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// panel.cxx -- routines to draw an instrument panel
//
// Written by Friedemann Reinhard, started June 1998.
//
// Copyright(C)1998 Friedemann Reinhard-reinhard@theorie2.physik.uni-erlangen.de
//
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// $Id$
// (Log is kept at end of this file)
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef HAVE_WINDOWS_H
# include <windows.h>
#endif
// #include <GL/gl.h>
// #include <GL/glu.h>
#include <GL/glut.h>
#include <XGL/xgl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <string>
#include <math.h>
#include <Aircraft/aircraft.hxx>
#include <Debug/logstream.hxx>
#include <Main/options.hxx>
#include <Main/views.hxx>
#include "panel.hxx"
#include "cockpit.hxx"
#include "hud.hxx"
#define IMAGIC 0x01da
#define IMAGIC_SWAP 0xda01
#define SWAP_SHORT_BYTES(x) ((((x) & 0xff) << 8) | (((x) & 0xff00) >> 8))
#define SWAP_LONG_BYTES(x) (((((x) & 0xff) << 24) | (((x) & 0xff00) << 8)) | \
((((x) & 0xff0000) >> 8) | (((x) & 0xff000000) >> 24)))
typedef struct {
unsigned short imagic;
unsigned short type;
unsigned short dim;
unsigned short sizeX, sizeY, sizeZ;
unsigned long min, max;
unsigned long wasteBytes;
char name[80];
unsigned long colorMap;
FILE *file;
unsigned char *tmp[5];
unsigned long rleEnd;
unsigned long *rowStart;
unsigned long *rowSize;
} Image;
IMAGE *imag;
IMAGE *img2;
IMAGE *img;
static GLuint panel_tex_id;
static GLubyte tex[32][128][3];
static float alphahist;
static float Xzoom, Yzoom;
static Pointer pointer[20];
static int NumGyro = 1;
static int NumPoint = 4;
static int i = 0;
static GLdouble mvmatrix[16];
static GLdouble matrix[16];
static double var[20];
static double offset;
static float alpha;
// image.c THIS FILE WAS COPIED FROM THE MESA GRAPHICS LIBRARY
static Image *ImageOpen(char *fileName)
{
Image *image;
unsigned long *rowStart, *rowSize, ulTmp;
int x, i;
image = (Image *)malloc(sizeof(Image));
if (image == NULL)
{
fprintf(stderr, "Out of memory!\n");
exit(-1);
}
if ((image->file = fopen(fileName, "rb")) == NULL)
{
perror(fileName);
exit(-1);
}
/*
* Read the image header
*/
fread(image, 1, 12, image->file);
/*
* Check byte order
*/
if (image->imagic == IMAGIC_SWAP)
{
image->type = SWAP_SHORT_BYTES(image->type);
image->dim = SWAP_SHORT_BYTES(image->dim);
image->sizeX = SWAP_SHORT_BYTES(image->sizeX);
image->sizeY = SWAP_SHORT_BYTES(image->sizeY);
image->sizeZ = SWAP_SHORT_BYTES(image->sizeZ);
}
for ( i = 0 ; i <= image->sizeZ ; i++ )
{
image->tmp[i] = (unsigned char *)malloc(image->sizeX*256);
if (image->tmp[i] == NULL )
{
fprintf(stderr, "Out of memory!\n");
exit(-1);
}
}
if ((image->type & 0xFF00) == 0x0100) // RLE image
{
x = image->sizeY * image->sizeZ * sizeof(long);
image->rowStart = (unsigned long *)malloc(x);
image->rowSize = (unsigned long *)malloc(x);
if (image->rowStart == NULL || image->rowSize == NULL)
{
fprintf(stderr, "Out of memory!\n");
exit(-1);
}
image->rleEnd = 512 + (2 * x);
fseek(image->file, 512, SEEK_SET);
fread(image->rowStart, 1, x, image->file);
fread(image->rowSize, 1, x, image->file);
if (image->imagic == IMAGIC_SWAP)
{
x /= sizeof(long);
rowStart = image->rowStart;
rowSize = image->rowSize;
while (x--)
{
ulTmp = *rowStart;
*rowStart++ = SWAP_LONG_BYTES(ulTmp);
ulTmp = *rowSize;
*rowSize++ = SWAP_LONG_BYTES(ulTmp);
}
}
}
return image;
}
static void ImageClose( Image *image)
{
int i;
fclose(image->file);
for ( i = 0 ; i <= image->sizeZ ; i++ )
free(image->tmp[i]);
free(image);
}
static void ImageGetRow( Image *image, unsigned char *buf, int y, int z)
{
unsigned char *iPtr, *oPtr, pixel;
int count;
if ((image->type & 0xFF00) == 0x0100) // RLE image
{
fseek(image->file, image->rowStart[y+z*image->sizeY], SEEK_SET);
fread(image->tmp[0], 1, (unsigned int)image->rowSize[y+z*image->sizeY],
image->file);
iPtr = image->tmp[0];
oPtr = buf;
while (1)
{
pixel = *iPtr++;
count = (int)(pixel & 0x7F);
if (!count)
return;
if (pixel & 0x80)
{
while (count--)
{
*oPtr++ = *iPtr++;
}
}
else
{
pixel = *iPtr++;
while (count--)
{
*oPtr++ = pixel;
}
}
}
}
else // verbatim image
{
fseek(image->file, 512+(y*image->sizeX)+(z*image->sizeX*image->sizeY),
SEEK_SET);
fread(buf, 1, image->sizeX, image->file);
}
}
static void ImageGetRawData( Image *image, char *data)
{
int i, j, k;
int remain;
switch ( image->sizeZ )
{
case 1:
remain = image->sizeX % 4;
break;
case 2:
remain = image->sizeX % 2;
break;
case 3:
remain = (image->sizeX * 3) & 0x3;
if (remain)
remain = 4 - remain;
break;
case 4:
remain = 0;
break;
}
for (i = 0; i < image->sizeY; i++)
{
for ( k = 0; k < image->sizeZ ; k++ )
ImageGetRow(image, image->tmp[k+1], i, k);
for (j = 0; j < image->sizeX; j++)
for ( k = 1; k <= image->sizeZ ; k++ )
*data++ = *(image->tmp[k] + j);
data += remain;
}
}
static IMAGE *ImageLoad(char *fileName)
{
Image *image;
IMAGE *final;
int sx;
image = ImageOpen(fileName);
final = (IMAGE *)malloc(sizeof(IMAGE));
if (final == NULL)
{
fprintf(stderr, "Out of memory!\n");
exit(-1);
}
final->imagic = image->imagic;
final->type = image->type;
final->dim = image->dim;
final->sizeX = image->sizeX;
final->sizeY = image->sizeY;
final->sizeZ = image->sizeZ;
/*
* Round up so rows are long-word aligned
*/
sx = ( (image->sizeX) * (image->sizeZ) + 3) >> 2;
final->data
= (unsigned char *)malloc( sx * image->sizeY * sizeof(unsigned int));
if (final->data == NULL)
{
fprintf(stderr, "Out of memory!\n");
exit(-1);
}
ImageGetRawData(image, final->data);
ImageClose(image);
return final;
}
// Beginning of the "panel-code"
void fgPanelInit ( void ) {
string tpath;
int x, y;
Xzoom = (float)((float)(current_view.get_winWidth())/1024.0);
Yzoom = (float)((float)(current_view.get_winHeight())/768.0);
pointer[1].XPos = 357;
pointer[1].YPos = 167;
pointer[1].radius = 5;
pointer[1].length = 32;
pointer[1].width = 3;
pointer[1].angle = 30;
pointer[1].value1 = 0;
pointer[1].value2 = 3000;
pointer[1].alpha1 = 0;
pointer[1].alpha2 = 1080;
pointer[1].variable = 1;
pointer[1].teXpos = 193;
pointer[1].texYpos = 191;
pointer[0].XPos = 357;
pointer[0].YPos = 167;
pointer[0].radius = 5;
pointer[0].length = 25;
pointer[0].width = 4;
pointer[0].angle = 30;
pointer[0].value1 = 0;
pointer[0].value2 = 10000;
pointer[0].alpha1 = 0;
pointer[0].alpha2 = 360;
pointer[0].variable = 1;
pointer[0].teXpos = 193;
pointer[0].texYpos = 191;
pointer[2].XPos = 358;
pointer[2].YPos = 52;
pointer[2].radius = 4;
pointer[2].length = 30;
pointer[2].width = 3;
pointer[2].angle = 30;
pointer[2].value1 = -3;
pointer[2].value2 = 3;
pointer[2].alpha1 = 100;
pointer[2].alpha2 = 440;
pointer[2].variable = 2;
pointer[2].teXpos = 66.15;
pointer[2].texYpos = 66;
pointer[3].XPos = 462;
pointer[3].YPos = 133;
pointer[3].radius = 9;
pointer[3].length = 20;
pointer[3].width = 5;
pointer[3].angle = 50;
pointer[3].value1 = 0.0;
pointer[3].value2 = 1.0;
pointer[3].alpha1 = 280;
pointer[3].alpha2 = 540;
pointer[3].variable = 3;
pointer[3].teXpos = 173.8;
pointer[3].texYpos = 83;
for(i=0;i<NumPoint;i++){
CreatePointer(&pointer[i]);
}
#ifdef GL_VERSION_1_1
xglGenTextures(1, &panel_tex_id);
xglBindTexture(GL_TEXTURE_2D, panel_tex_id);
#elif GL_EXT_texture_object
xglGenTexturesEXT(1, &panel_tex_id);
xglBindTextureEXT(GL_TEXTURE_2D, panel_tex_id);
#else
# error port me
#endif
xglMatrixMode(GL_PROJECTION);
xglPushMatrix();
xglLoadIdentity();
xglViewport(0, 0, 640, 480);
gluOrtho2D(0, 640, 0, 480);
xglMatrixMode(GL_MODELVIEW);
xglPushMatrix();
xglLoadIdentity();
xglPixelStorei(GL_UNPACK_ALIGNMENT, 4);
xglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
xglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
xglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
xglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
// load in the texture data
xglPixelStorei(GL_UNPACK_ROW_LENGTH, 256);
tpath = current_options.get_fg_root() + "/Textures/gauges.rgb";
if((img = ImageLoad( (char *)tpath.c_str() ))==NULL){
}
xglPixelStorei(GL_UNPACK_ROW_LENGTH, 1024);
tpath = current_options.get_fg_root() + "/Textures/Fullone.rgb";
if ((img2 = ImageLoad( (char *)tpath.c_str() ))==NULL ){
}
xglPixelZoom(Xzoom, Yzoom);
xglPixelStorei(GL_UNPACK_ALIGNMENT, 1);
xglPixelStorei(GL_UNPACK_ROW_LENGTH, 1024);
xglPixelStorei(GL_UNPACK_ROW_LENGTH, 1024);
xglRasterPos2i(0,0);
xglPixelZoom(Xzoom, Yzoom);
xglPixelStorei(GL_UNPACK_ROW_LENGTH, 256);
xglTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 256, 256, 0, GL_RGB,
GL_UNSIGNED_BYTE, (GLvoid *)(img->data));
xglMatrixMode(GL_MODELVIEW);
xglPopMatrix();
}
void fgPanelReInit( int x, int y, int finx, int finy){
fgOPTIONS *o;
int i;
o = &current_options;
Xzoom = (float)((float)(current_view.get_winWidth())/1024);
Yzoom = (float)((float)(current_view.get_winHeight())/768);
xglMatrixMode(GL_PROJECTION);
xglPushMatrix();
xglLoadIdentity();
xglViewport(0, 0, 640, 480);
gluOrtho2D(0, 640, 0, 480);
xglMatrixMode(GL_MODELVIEW);
xglPushMatrix();
xglLoadIdentity();
xglPixelStorei(GL_UNPACK_ALIGNMENT, 1);
xglPixelZoom(Xzoom, Yzoom);
xglPixelStorei(GL_UNPACK_ALIGNMENT, 1);
xglPixelStorei(GL_UNPACK_ROW_LENGTH, 1024);
xglPixelStorei(GL_UNPACK_SKIP_PIXELS, x);
xglPixelStorei(GL_UNPACK_SKIP_ROWS, y);
xglRasterPos2i(x, y);
xglPixelZoom(Xzoom, Yzoom);
xglDrawPixels(finx - x, finy - y, GL_RGB, GL_UNSIGNED_BYTE, (GLvoid *)(img2->data));
}
void fgPanelUpdate ( void ) {
float alpha;
double pitch;
double roll;
float alpharad;
double speed;
int i;
var[0] = get_speed();
var[1] = get_altitude();
var[2] = get_aoa(); // A placeholder. It should be the vertical speed once.
var[3] = get_throttleval();
xglMatrixMode(GL_PROJECTION);
xglPushMatrix();
xglLoadIdentity();
glOrtho(0, 640, 0, 480, 1, -1);
xglMatrixMode(GL_MODELVIEW);
xglPushMatrix();
xglLoadIdentity();
xglDisable(GL_DEPTH_TEST);
xglDisable(GL_LIGHTING);
xglEnable(GL_TEXTURE_2D);
#ifdef GL_VERSION_1_1
xglBindTexture(GL_TEXTURE_2D, panel_tex_id);
#elif GL_EXT_texture_object
xglBindTextureEXT(GL_TEXTURE_2D, panel_tex_id);
#else
# error port me
#endif
xglMatrixMode(GL_MODELVIEW);
xglPopMatrix();
xglPushMatrix();
for(i=0;i<NumPoint;i++){
xglLoadIdentity();
xglTranslatef(pointer[i].XPos, pointer[i].YPos, 0.0);
xglRotatef(-pointer[i].hist, 0.0, 0.0, 1.0);
ErasePointer(pointer[i]);
xglLoadIdentity();
}
for(i=0;i<NumPoint;i++){
pointer[i].hist = UpdatePointer( pointer[i]);
xglPopMatrix();
xglPushMatrix();
}
xglDisable(GL_TEXTURE_2D);
xglLoadIdentity();
xglPopMatrix();
// xglRasterPos2i(0, 0);
// horizont();
xglEnable(GL_DEPTH_TEST);
xglEnable(GL_LIGHTING);
xglDisable(GL_TEXTURE_2D);
xglDisable(GL_BLEND);
xglDisable(GL_ALPHA_TEST);
xglMatrixMode(GL_PROJECTION);
xglPopMatrix();
xglMatrixMode(GL_MODELVIEW);
xglPopMatrix();
}
void horizont(void){
double pitch;
double roll;
pitch = get_pitch() * RAD_TO_DEG;
roll = get_roll() * RAD_TO_DEG;
xglEnable(GL_TEXTURE_2D);
xglMatrixMode(GL_MODELVIEW);
xglLoadIdentity();
xglTranslatef(200, 130, 0);
xglTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
#ifdef GL_VERSION_1_1
xglBindTexture(GL_TEXTURE_2D, panel_tex_id);
#elif GL_EXT_texture_object
xglBindTextureEXT(GL_TEXTURE_2D, panel_tex_id);
#else
# error port me
#endif
xglMatrixMode(GL_TEXTURE);
xglLoadIdentity();
//xglTranslatef(0.0, 0.33, 0.0);
xglScalef(0.5, 0.5, 0.0);
xglTranslatef(0.0, (pitch / 45), 0.0);
xglTranslatef(1.0, 1.0, 0.0);
xglRotatef(-roll, 0.0, 0.0, 1.0);
xglTranslatef(-0.5, -0.5, 0.0);
xglBegin(GL_POLYGON);
xglTexCoord2f(0.0, 0.1); xglVertex2f(0.0, 0.0);
xglTexCoord2f(1.0, 0.1); xglVertex2f(70.0, 0.0);
xglTexCoord2f(1.0, 0.9); xglVertex2f(70.0, 70.0);
xglTexCoord2f(0.0, 0.9); xglVertex2f(0.0, 70.0);
xglEnd();
xglPopMatrix();
xglMatrixMode(GL_PROJECTION);
xglPopMatrix();
xglDisable(GL_TEXTURE_2D);
}
float UpdatePointer(Pointer pointer){
double pitch;
double roll;
float alpharad;
double speed;
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(2, GL_FLOAT, 0, pointer.vertices);
alpha=((((float)((var[pointer.variable]) - (pointer.value1)))/(pointer.value2 - pointer.value1))*(pointer.alpha2 - pointer.alpha1) + pointer.alpha1);
if (alpha < pointer.alpha1)
alpha = pointer.alpha1;
if (alpha > pointer.alpha2)
alpha = pointer.alpha2;
xglMatrixMode(GL_MODELVIEW);
xglPushMatrix();
xglLoadIdentity();
xglDisable(GL_TEXTURE_2D);
xglTranslatef(pointer.XPos, pointer.YPos, 0);
xglRotatef(-alpha, 0.0, 0.0, 1.0);
xglColor4f(1.0, 1.0, 1.0, 1.0);
glDrawArrays(GL_POLYGON, 0, 10);
return alpha;
xglEnable(GL_TEXTURE_2D);
glDisableClientState(GL_VERTEX_ARRAY);
}
void ErasePointer(Pointer pointer){
int i, j;
float a;
float ififth;
xglEnable(GL_TEXTURE_2D);
xglEnable(GL_TEXTURE_GEN_S);
xglEnable(GL_TEXTURE_GEN_T);
glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
//glTexGenfv(GL_S, GL_EYE_PLANE, currentCoeff);
glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
//glTexGenfv(GL_T, GL_EYE_PLANE, currentCoeff);
xglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
xglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
xglTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
xglMatrixMode(GL_TEXTURE);
xglLoadIdentity();
#ifdef GL_VERSION_1_1
xglBindTexture(GL_TEXTURE_2D, panel_tex_id);
#elif GL_EXT_texture_object
xglBindTextureEXT(GL_TEXTURE_2D, panel_tex_id);
#else
# error port me
#endif
xglMatrixMode(GL_TEXTURE);
xglLoadIdentity();
xglTranslatef(-((float)(((float)(pointer.XPos)/0.625)/256)) /* - 0.057143*/, -((float)(((float)(pointer.YPos)/0.625)/256)), 0.0);
xglTranslatef(pointer.teXpos/256 , pointer.texYpos/256, 0.0);
xglScalef(0.00625, 0.00625, 1.0);
//xglTranslatef(-pointer.teXpos , -pointer.texYpos, 0.0);
xglBegin(GL_POLYGON);
xglVertex2f(pointer.vertices[0], pointer.vertices[1]);
xglVertex2f(pointer.vertices[2], pointer.vertices[3]);
xglVertex2f(pointer.vertices[4], pointer.vertices[5]);
xglVertex2f(pointer.vertices[16], pointer.vertices[17]);
xglVertex2f(pointer.vertices[18], pointer.vertices[19]);
xglEnd();
xglLoadIdentity();
xglMatrixMode(GL_MODELVIEW);
xglPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
xglPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
xglDisable(GL_TEXTURE_2D);
xglDisable(GL_TEXTURE_GEN_S);
xglDisable(GL_TEXTURE_GEN_T);
}
void CreatePointer(Pointer *pointer){
int i;
float alpha;
float alphastep;
float r = pointer->radius;
float angle = pointer->angle;
float length = pointer->length;
float width = pointer->width;
pointer->vertices[0] = 0;
pointer->vertices[1] = length;
pointer->vertices[2] = -(width/2);
pointer->vertices[3] = length - ((width/2)/(tan(angle*DEG_TO_RAD/2)));
pointer->vertices[4] = -(width/2);
pointer->vertices[5] = cos(asin((width/2)/r))*r;
alphastep = (asin((width/2)/r)+asin((width/2)/r))/5;
alpha = asin(-(width/2)/r);
for(i=0;i<5;i++){
alpha += alphastep;
pointer->vertices[(i*2)+6] = sin(alpha)*r;
}
alpha = asin(-(width/2)/r);
for(i=0;i<5;i++){
alpha +=alphastep;
pointer->vertices[(i*2)+7]= cos(alpha)*r;
}
pointer->vertices[16] = - pointer->vertices[4];
pointer->vertices[17] = pointer->vertices[5];
pointer->vertices[18] = - pointer->vertices[2];
pointer->vertices[19] = pointer->vertices[3];
}
void PrintMatrix( void){
glGetDoublev(GL_MODELVIEW_MATRIX, mvmatrix);
printf("matrix2 = %f %f %f %f \n", mvmatrix[0], mvmatrix[1], mvmatrix[2], mvmatrix[3]);
printf(" %f %f %f %f \n", mvmatrix[4], mvmatrix[5], mvmatrix[6], mvmatrix[7]);
printf(" %f %f %f %f \n", mvmatrix[8], mvmatrix[9], mvmatrix[10], mvmatrix[11]);
printf(" %f %f %f %f \n", mvmatrix[12], mvmatrix[13], mvmatrix[14], mvmatrix[15]);
}
// $Log$
// Revision 1.12 1998/12/09 18:50:20 curt
// Converted "class fgVIEW" to "class FGView" and updated to make data
// members private and make required accessor functions.
//
// Revision 1.11 1998/11/11 00:19:27 curt
// Updated comment delimeter to C++ style.
//
// Revision 1.10 1998/11/09 23:38:52 curt
// Panel updates from Friedemann.
//
// Revision 1.9 1998/11/06 21:18:01 curt
// Converted to new logstream debugging facility. This allows release
// builds with no messages at all (and no performance impact) by using
// the -DFG_NDEBUG flag.
//
// Revision 1.8 1998/10/16 23:27:37 curt
// C++-ifying.
//
// Revision 1.7 1998/08/31 20:45:31 curt
// Tweaks from Friedemann.
//
// Revision 1.6 1998/08/28 18:14:40 curt
// Added new cockpit code from Friedemann Reinhard
// <mpt218@faupt212.physik.uni-erlangen.de>
//
// Revision 1.1 1998/06/27 16:47:54 curt
// Incorporated Friedemann Reinhard's <mpt218@faupt212.physik.uni-erlangen.de>
// first pass at an isntrument panel.
//
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