136 lines
2.6 KiB
C++
136 lines
2.6 KiB
C++
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/*
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Copyright 1999, Be Incorporated. All Rights Reserved.
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This file may be used under the terms of the Be Sample Code License.
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*/
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#include "FPS.h"
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FPS::FPS()
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{
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}
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FPS::~FPS()
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{
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}
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void FPS::drawChar( GLfloat x, GLfloat y, GLint number )
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{
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static bool numbers[13][7] = {
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{true,true,true,true,true,true,false}, /* 0 */
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{false,true,true,false,false,false,false}, /* 1 */
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{true,true,false,true,true,false,true}, /* 2 */
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{true,true,true,true,false,false,true}, /* 3 */
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{false,true,true,false,false,true,true}, /* 4 */
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{true,false,true,true,false,true,true}, /* 5 */
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{true,false,true,true,true,true,true}, /* 6 */
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{true,true,true,false,false,false,false}, /* 7 */
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{true,true,true,true,true,true,true}, /* 8 */
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{true,true,true,false,false,true,true}, /* 9 */
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{true,false,false,false,true,true,true}, /* F */
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{true,true,false,false,true,true,true}, /* P */
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{true,false,true,true,false,true,true}, /* S */
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};
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static GLfloat gap = 0.03;
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static GLfloat size = 1.0;
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static GLfloat x0 = -size / 4;
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static GLfloat x1 = -size / 4 + gap;
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static GLfloat x2 = -x1;
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static GLfloat x3 = -x0;
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static GLfloat y0 = size / 2;
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static GLfloat y1 = size / 2 - gap;
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static GLfloat y2 = 0 + gap;
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static GLfloat y3 = 0;
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static GLfloat y4 = -y2;
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static GLfloat y5 = -y1;
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static GLfloat y6 = -y0;
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glBegin( GL_LINES );
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if( numbers[number][0] )
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{
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glVertex2f( x1 + x, y0 + y );
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glVertex2f( x2 + x, y0 + y );
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}
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if( numbers[number][1] )
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{
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glVertex2f( x3 + x, y1 + y );
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glVertex2f( x3 + x, y2 + y );
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}
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if( numbers[number][2] )
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{
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glVertex2f( x3 + x, y4 + y );
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glVertex2f( x3 + x, y5 + y );
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}
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if( numbers[number][3] )
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{
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glVertex2f( x1 + x, y6 + y );
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glVertex2f( x2 + x, y6 + y );
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}
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if( numbers[number][4] )
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{
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glVertex2f( x0 + x, y5 + y );
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glVertex2f( x0 + x, y4 + y );
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}
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if( numbers[number][5] )
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{
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glVertex2f( x0 + x, y2 + y );
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glVertex2f( x0 + x, y1 + y );
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}
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if( numbers[number][6] )
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{
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glVertex2f( x1 + x, y3 + y );
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glVertex2f( x2 + x, y3 + y );
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}
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glEnd();
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}
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void FPS::drawCounter( GLfloat frameRate )
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{
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GLfloat pos = 0;
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int ifps = (int) (frameRate * 10 +0.5);
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int c100,c10,c1,c_1;
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c100 = ifps / 1000;
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c10 = (ifps / 100) % 10;
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c1 = (ifps / 10) % 10;
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c_1 = ifps % 10;
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if( c100 )
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{
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drawChar( pos, 0, c100 );
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pos += 1;
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}
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if( c100 || c10 )
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{
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drawChar( pos, 0, c10 );
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pos += 1;
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}
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drawChar( pos, 0, c1 );
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pos += 0.5;
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glBegin( GL_POINTS );
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glVertex2f( pos, -0.5 );
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glEnd();
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pos += 0.5;
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drawChar( pos, 0, c_1 );
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pos += 1.5;
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drawChar( pos, 0, 10 );
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pos += 1;
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drawChar( pos, 0, 11 );
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pos += 1;
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drawChar( pos, 0, 12 );
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pos += 1;
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}
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