584 lines
13 KiB
C
584 lines
13 KiB
C
|
/*
|
||
|
|
* (c) Copyright 1993, Silicon Graphics, Inc.
|
||
|
|
* ALL RIGHTS RESERVED
|
||
|
|
* Permission to use, copy, modify, and distribute this software for
|
||
|
|
* any purpose and without fee is hereby granted, provided that the above
|
||
|
|
* copyright notice appear in all copies and that both the copyright notice
|
||
|
|
* and this permission notice appear in supporting documentation, and that
|
||
|
|
* the name of Silicon Graphics, Inc. not be used in advertising
|
||
|
|
* or publicity pertaining to distribution of the software without specific,
|
||
|
|
* written prior permission.
|
||
|
|
*
|
||
|
|
* THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
|
||
|
|
* AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
|
||
|
|
* INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
|
||
|
|
* GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
|
||
|
|
* SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
|
||
|
|
* KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
|
||
|
|
* LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
|
||
|
|
* THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN
|
||
|
|
* ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
|
||
|
|
* ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
|
||
|
|
* POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
|
||
|
|
*
|
||
|
|
* US Government Users Restricted Rights
|
||
|
|
* Use, duplication, or disclosure by the Government is subject to
|
||
|
|
* restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
|
||
|
|
* (c)(1)(ii) of the Rights in Technical Data and Computer Software
|
||
|
|
* clause at DFARS 252.227-7013 and/or in similar or successor
|
||
|
|
* clauses in the FAR or the DOD or NASA FAR Supplement.
|
||
|
|
* Unpublished-- rights reserved under the copyright laws of the
|
||
|
|
* United States. Contractor/manufacturer is Silicon Graphics,
|
||
|
|
* Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311.
|
||
|
|
*
|
||
|
|
* OpenGL(TM) is a trademark of Silicon Graphics, Inc.
|
||
|
|
*/
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <string.h>
|
||
|
|
//#include <unistd.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include "tk.h"
|
||
|
|
|
||
|
|
|
||
|
|
#define PIXEL_CENTER(x) ((long)(x) + 0.5)
|
||
|
|
|
||
|
|
#define GAP 10
|
||
|
|
#define ROWS 3
|
||
|
|
#define COLS 4
|
||
|
|
|
||
|
|
#define OPENGL_WIDTH 48
|
||
|
|
#define OPENGL_HEIGHT 13
|
||
|
|
|
||
|
|
|
||
|
|
GLenum rgb, doubleBuffer, directRender, windType;
|
||
|
|
GLint windW, windH;
|
||
|
|
|
||
|
|
GLenum mode1, mode2;
|
||
|
|
GLint boxW, boxH;
|
||
|
|
GLubyte OpenGL_bits[] = {
|
||
|
|
0x00, 0x03, 0x00, 0x00, 0x00, 0x00,
|
||
|
|
0x7f, 0xfb, 0xff, 0xff, 0xff, 0x01,
|
||
|
|
0x7f, 0xfb, 0xff, 0xff, 0xff, 0x01,
|
||
|
|
0x00, 0x03, 0x00, 0x00, 0x00, 0x00,
|
||
|
|
0x3e, 0x8f, 0xb7, 0xf9, 0xfc, 0x01,
|
||
|
|
0x63, 0xdb, 0xb0, 0x8d, 0x0d, 0x00,
|
||
|
|
0x63, 0xdb, 0xb7, 0x8d, 0x0d, 0x00,
|
||
|
|
0x63, 0xdb, 0xb6, 0x8d, 0x0d, 0x00,
|
||
|
|
0x63, 0x8f, 0xf3, 0xcc, 0x0d, 0x00,
|
||
|
|
0x63, 0x00, 0x00, 0x0c, 0x4c, 0x0a,
|
||
|
|
0x63, 0x00, 0x00, 0x0c, 0x4c, 0x0e,
|
||
|
|
0x63, 0x00, 0x00, 0x8c, 0xed, 0x0e,
|
||
|
|
0x3e, 0x00, 0x00, 0xf8, 0x0c, 0x00,
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
static void Init(void)
|
||
|
|
{
|
||
|
|
|
||
|
|
mode1 = GL_TRUE;
|
||
|
|
mode2 = GL_TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void Reshape(int width, int height)
|
||
|
|
{
|
||
|
|
|
||
|
|
windW = (GLint)width;
|
||
|
|
windH = (GLint)height;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void RotateColorMask(void)
|
||
|
|
{
|
||
|
|
static GLint rotation = 0;
|
||
|
|
|
||
|
|
rotation = (rotation + 1) & 0x3;
|
||
|
|
switch (rotation) {
|
||
|
|
case 0:
|
||
|
|
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
|
||
|
|
glIndexMask( 0xff );
|
||
|
|
break;
|
||
|
|
case 1:
|
||
|
|
glColorMask(GL_FALSE, GL_TRUE, GL_TRUE, GL_TRUE);
|
||
|
|
glIndexMask(0xFE);
|
||
|
|
break;
|
||
|
|
case 2:
|
||
|
|
glColorMask(GL_TRUE, GL_FALSE, GL_TRUE, GL_TRUE);
|
||
|
|
glIndexMask(0xFD);
|
||
|
|
break;
|
||
|
|
case 3:
|
||
|
|
glColorMask(GL_TRUE, GL_TRUE, GL_FALSE, GL_TRUE);
|
||
|
|
glIndexMask(0xEF);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static GLenum Key(int key, GLenum mask)
|
||
|
|
{
|
||
|
|
|
||
|
|
switch (key) {
|
||
|
|
case TK_ESCAPE:
|
||
|
|
tkQuit();
|
||
|
|
case TK_1:
|
||
|
|
mode1 = !mode1;
|
||
|
|
break;
|
||
|
|
case TK_2:
|
||
|
|
mode2 = !mode2;
|
||
|
|
break;
|
||
|
|
case TK_3:
|
||
|
|
RotateColorMask();
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
return GL_FALSE;
|
||
|
|
}
|
||
|
|
return GL_TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void Viewport(GLint row, GLint column)
|
||
|
|
{
|
||
|
|
GLint x, y;
|
||
|
|
|
||
|
|
boxW = (windW - (COLS + 1) * GAP) / COLS;
|
||
|
|
boxH = (windH - (ROWS + 1) * GAP) / ROWS;
|
||
|
|
|
||
|
|
x = GAP + column * (boxW + GAP);
|
||
|
|
y = GAP + row * (boxH + GAP);
|
||
|
|
|
||
|
|
glViewport(x, y, boxW, boxH);
|
||
|
|
|
||
|
|
glMatrixMode(GL_PROJECTION);
|
||
|
|
glLoadIdentity();
|
||
|
|
glOrtho(-boxW/2, boxW/2, -boxH/2, boxH/2, 0.0, 1.0);
|
||
|
|
glMatrixMode(GL_MODELVIEW);
|
||
|
|
|
||
|
|
glEnable(GL_SCISSOR_TEST);
|
||
|
|
glScissor(x, y, boxW, boxH);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void Point(void)
|
||
|
|
{
|
||
|
|
GLint i;
|
||
|
|
|
||
|
|
glBegin(GL_POINTS);
|
||
|
|
TK_SETCOLOR(windType, TK_WHITE);
|
||
|
|
glVertex2i(0, 0);
|
||
|
|
for (i = 1; i < 8; i++) {
|
||
|
|
GLint j = i * 2;
|
||
|
|
TK_SETCOLOR(windType, i + TK_RED - 1);
|
||
|
|
glVertex2i(-j, -j);
|
||
|
|
glVertex2i(-j, 0);
|
||
|
|
glVertex2i(-j, j);
|
||
|
|
glVertex2i(0, j);
|
||
|
|
glVertex2i(j, j);
|
||
|
|
glVertex2i(j, 0);
|
||
|
|
glVertex2i(j, -j);
|
||
|
|
glVertex2i(0, -j);
|
||
|
|
}
|
||
|
|
glEnd();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void Lines(void)
|
||
|
|
{
|
||
|
|
GLint i;
|
||
|
|
|
||
|
|
glPushMatrix();
|
||
|
|
|
||
|
|
glTranslatef(-12, 0, 0);
|
||
|
|
for (i = 1; i < 8; i++) {
|
||
|
|
TK_SETCOLOR(windType, i + TK_RED - 1);
|
||
|
|
glBegin(GL_LINES);
|
||
|
|
glVertex2i(-boxW/4, -boxH/4);
|
||
|
|
glVertex2i(boxW/4, boxH/4);
|
||
|
|
glEnd();
|
||
|
|
glTranslatef(4, 0, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
glPopMatrix();
|
||
|
|
|
||
|
|
glBegin(GL_LINES);
|
||
|
|
glVertex2i(0, 0);
|
||
|
|
glEnd();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void LineStrip(void)
|
||
|
|
{
|
||
|
|
|
||
|
|
glBegin(GL_LINE_STRIP);
|
||
|
|
TK_SETCOLOR(windType, TK_RED);
|
||
|
|
glVertex2f(PIXEL_CENTER(-boxW/4), PIXEL_CENTER(-boxH/4));
|
||
|
|
TK_SETCOLOR(windType, TK_GREEN);
|
||
|
|
glVertex2f(PIXEL_CENTER(-boxW/4), PIXEL_CENTER(boxH/4));
|
||
|
|
TK_SETCOLOR(windType, TK_BLUE);
|
||
|
|
glVertex2f(PIXEL_CENTER(boxW/4), PIXEL_CENTER(boxH/4));
|
||
|
|
TK_SETCOLOR(windType, TK_WHITE);
|
||
|
|
glVertex2f(PIXEL_CENTER(boxW/4), PIXEL_CENTER(-boxH/4));
|
||
|
|
glEnd();
|
||
|
|
|
||
|
|
glBegin(GL_LINE_STRIP);
|
||
|
|
glVertex2i(0, 0);
|
||
|
|
glEnd();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void LineLoop(void)
|
||
|
|
{
|
||
|
|
|
||
|
|
glBegin(GL_LINE_LOOP);
|
||
|
|
TK_SETCOLOR(windType, TK_RED);
|
||
|
|
glVertex2f(PIXEL_CENTER(-boxW/4), PIXEL_CENTER(-boxH/4));
|
||
|
|
TK_SETCOLOR(windType, TK_GREEN);
|
||
|
|
glVertex2f(PIXEL_CENTER(-boxW/4), PIXEL_CENTER(boxH/4));
|
||
|
|
TK_SETCOLOR(windType, TK_BLUE);
|
||
|
|
glVertex2f(PIXEL_CENTER(boxW/4), PIXEL_CENTER(boxH/4));
|
||
|
|
TK_SETCOLOR(windType, TK_WHITE);
|
||
|
|
glVertex2f(PIXEL_CENTER(boxW/4), PIXEL_CENTER(-boxH/4));
|
||
|
|
glEnd();
|
||
|
|
|
||
|
|
glEnable(GL_LOGIC_OP);
|
||
|
|
glLogicOp(GL_XOR);
|
||
|
|
|
||
|
|
glEnable(GL_BLEND);
|
||
|
|
glBlendFunc(GL_ONE, GL_ONE);
|
||
|
|
|
||
|
|
TK_SETCOLOR(windType, TK_MAGENTA);
|
||
|
|
glBegin(GL_LINE_LOOP);
|
||
|
|
glVertex2f(PIXEL_CENTER(-boxW/8), PIXEL_CENTER(-boxH/8));
|
||
|
|
glVertex2f(PIXEL_CENTER(-boxW/8), PIXEL_CENTER(boxH/8));
|
||
|
|
glEnd();
|
||
|
|
glBegin(GL_LINE_LOOP);
|
||
|
|
glVertex2f(PIXEL_CENTER(-boxW/8), PIXEL_CENTER(boxH/8+5));
|
||
|
|
glVertex2f(PIXEL_CENTER(boxW/8), PIXEL_CENTER(boxH/8+5));
|
||
|
|
glEnd();
|
||
|
|
glDisable(GL_LOGIC_OP);
|
||
|
|
glDisable(GL_BLEND);
|
||
|
|
|
||
|
|
TK_SETCOLOR(windType, TK_GREEN);
|
||
|
|
glBegin(GL_POINTS);
|
||
|
|
glVertex2i(0, 0);
|
||
|
|
glEnd();
|
||
|
|
|
||
|
|
glBegin(GL_LINE_LOOP);
|
||
|
|
glVertex2i(0, 0);
|
||
|
|
glEnd();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void Bitmap(void)
|
||
|
|
{
|
||
|
|
|
||
|
|
glBegin(GL_LINES);
|
||
|
|
TK_SETCOLOR(windType, TK_GREEN);
|
||
|
|
glVertex2i(-boxW/2, 0);
|
||
|
|
glVertex2i(boxW/2, 0);
|
||
|
|
glVertex2i(0, -boxH/2);
|
||
|
|
glVertex2i(0, boxH/2);
|
||
|
|
TK_SETCOLOR(windType, TK_RED);
|
||
|
|
glVertex2i(0, -3);
|
||
|
|
glVertex2i(0, -3+OPENGL_HEIGHT);
|
||
|
|
TK_SETCOLOR(windType, TK_BLUE);
|
||
|
|
glVertex2i(0, -3);
|
||
|
|
glVertex2i(OPENGL_WIDTH, -3);
|
||
|
|
glEnd();
|
||
|
|
|
||
|
|
TK_SETCOLOR(windType, TK_GREEN);
|
||
|
|
|
||
|
|
glPixelStorei(GL_UNPACK_LSB_FIRST, GL_TRUE);
|
||
|
|
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
|
||
|
|
|
||
|
|
glRasterPos2i(0, 0);
|
||
|
|
glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, 0, 3, 0.0, 0.0, OpenGL_bits);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void Triangles(void)
|
||
|
|
{
|
||
|
|
|
||
|
|
glBegin(GL_TRIANGLES);
|
||
|
|
TK_SETCOLOR(windType, TK_GREEN);
|
||
|
|
glVertex2i(-boxW/4, -boxH/4);
|
||
|
|
TK_SETCOLOR(windType, TK_RED);
|
||
|
|
glVertex2i(-boxW/8, -boxH/16);
|
||
|
|
TK_SETCOLOR(windType, TK_BLUE);
|
||
|
|
glVertex2i(boxW/8, -boxH/16);
|
||
|
|
|
||
|
|
TK_SETCOLOR(windType, TK_GREEN);
|
||
|
|
glVertex2i(-boxW/4, boxH/4);
|
||
|
|
TK_SETCOLOR(windType, TK_RED);
|
||
|
|
glVertex2i(-boxW/8, boxH/16);
|
||
|
|
TK_SETCOLOR(windType, TK_BLUE);
|
||
|
|
glVertex2i(boxW/8, boxH/16);
|
||
|
|
glEnd();
|
||
|
|
|
||
|
|
glBegin(GL_TRIANGLES);
|
||
|
|
glVertex2i(0, 0);
|
||
|
|
glVertex2i(-100, 100);
|
||
|
|
glEnd();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void TriangleStrip(void)
|
||
|
|
{
|
||
|
|
|
||
|
|
glBegin(GL_TRIANGLE_STRIP);
|
||
|
|
TK_SETCOLOR(windType, TK_GREEN);
|
||
|
|
glVertex2i(-boxW/4, -boxH/4);
|
||
|
|
TK_SETCOLOR(windType, TK_RED);
|
||
|
|
glVertex2i(-boxW/4, boxH/4);
|
||
|
|
TK_SETCOLOR(windType, TK_BLUE);
|
||
|
|
glVertex2i(0, -boxH/4);
|
||
|
|
TK_SETCOLOR(windType, TK_WHITE);
|
||
|
|
glVertex2i(0, boxH/4);
|
||
|
|
TK_SETCOLOR(windType, TK_CYAN);
|
||
|
|
glVertex2i(boxW/4, -boxH/4);
|
||
|
|
TK_SETCOLOR(windType, TK_YELLOW);
|
||
|
|
glVertex2i(boxW/4, boxH/4);
|
||
|
|
glEnd();
|
||
|
|
|
||
|
|
glBegin(GL_TRIANGLE_STRIP);
|
||
|
|
glVertex2i(0, 0);
|
||
|
|
glVertex2i(-100, 100);
|
||
|
|
glEnd();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void TriangleFan(void)
|
||
|
|
{
|
||
|
|
GLint vx[8][2];
|
||
|
|
GLint x0, y0, x1, y1, x2, y2, x3, y3;
|
||
|
|
GLint i;
|
||
|
|
|
||
|
|
y0 = -boxH/4;
|
||
|
|
y1 = y0 + boxH/2/3;
|
||
|
|
y2 = y1 + boxH/2/3;
|
||
|
|
y3 = boxH/4;
|
||
|
|
x0 = -boxW/4;
|
||
|
|
x1 = x0 + boxW/2/3;
|
||
|
|
x2 = x1 + boxW/2/3;
|
||
|
|
x3 = boxW/4;
|
||
|
|
|
||
|
|
vx[0][0] = x0; vx[0][1] = y1;
|
||
|
|
vx[1][0] = x0; vx[1][1] = y2;
|
||
|
|
vx[2][0] = x1; vx[2][1] = y3;
|
||
|
|
vx[3][0] = x2; vx[3][1] = y3;
|
||
|
|
vx[4][0] = x3; vx[4][1] = y2;
|
||
|
|
vx[5][0] = x3; vx[5][1] = y1;
|
||
|
|
vx[6][0] = x2; vx[6][1] = y0;
|
||
|
|
vx[7][0] = x1; vx[7][1] = y0;
|
||
|
|
|
||
|
|
glBegin(GL_TRIANGLE_FAN);
|
||
|
|
TK_SETCOLOR(windType, TK_WHITE);
|
||
|
|
glVertex2i(0, 0);
|
||
|
|
for (i = 0; i < 8; i++) {
|
||
|
|
TK_SETCOLOR(windType, TK_WHITE-i);
|
||
|
|
glVertex2iv(vx[i]);
|
||
|
|
}
|
||
|
|
glEnd();
|
||
|
|
|
||
|
|
glBegin(GL_TRIANGLE_FAN);
|
||
|
|
glVertex2i(0, 0);
|
||
|
|
glVertex2i(-100, 100);
|
||
|
|
glEnd();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void Rect(void)
|
||
|
|
{
|
||
|
|
|
||
|
|
TK_SETCOLOR(windType, TK_GREEN);
|
||
|
|
glRecti(-boxW/4, -boxH/4, boxW/4, boxH/4);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void tprimPolygon(void)
|
||
|
|
{
|
||
|
|
GLint vx[8][2];
|
||
|
|
GLint x0, y0, x1, y1, x2, y2, x3, y3;
|
||
|
|
GLint i;
|
||
|
|
|
||
|
|
y0 = -boxH/4;
|
||
|
|
y1 = y0 + boxH/2/3;
|
||
|
|
y2 = y1 + boxH/2/3;
|
||
|
|
y3 = boxH/4;
|
||
|
|
x0 = -boxW/4;
|
||
|
|
x1 = x0 + boxW/2/3;
|
||
|
|
x2 = x1 + boxW/2/3;
|
||
|
|
x3 = boxW/4;
|
||
|
|
|
||
|
|
vx[0][0] = x0; vx[0][1] = y1;
|
||
|
|
vx[1][0] = x0; vx[1][1] = y2;
|
||
|
|
vx[2][0] = x1; vx[2][1] = y3;
|
||
|
|
vx[3][0] = x2; vx[3][1] = y3;
|
||
|
|
vx[4][0] = x3; vx[4][1] = y2;
|
||
|
|
vx[5][0] = x3; vx[5][1] = y1;
|
||
|
|
vx[6][0] = x2; vx[6][1] = y0;
|
||
|
|
vx[7][0] = x1; vx[7][1] = y0;
|
||
|
|
|
||
|
|
glBegin(GL_POLYGON);
|
||
|
|
for (i = 0; i < 8; i++) {
|
||
|
|
TK_SETCOLOR(windType, TK_WHITE-i);
|
||
|
|
glVertex2iv(vx[i]);
|
||
|
|
}
|
||
|
|
glEnd();
|
||
|
|
|
||
|
|
glBegin(GL_POLYGON);
|
||
|
|
glVertex2i(0, 0);
|
||
|
|
glVertex2i(100, 100);
|
||
|
|
glEnd();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void Quads(void)
|
||
|
|
{
|
||
|
|
|
||
|
|
glBegin(GL_QUADS);
|
||
|
|
TK_SETCOLOR(windType, TK_GREEN);
|
||
|
|
glVertex2i(-boxW/4, -boxH/4);
|
||
|
|
TK_SETCOLOR(windType, TK_RED);
|
||
|
|
glVertex2i(-boxW/8, -boxH/16);
|
||
|
|
TK_SETCOLOR(windType, TK_BLUE);
|
||
|
|
glVertex2i(boxW/8, -boxH/16);
|
||
|
|
TK_SETCOLOR(windType, TK_WHITE);
|
||
|
|
glVertex2i(boxW/4, -boxH/4);
|
||
|
|
|
||
|
|
TK_SETCOLOR(windType, TK_GREEN);
|
||
|
|
glVertex2i(-boxW/4, boxH/4);
|
||
|
|
TK_SETCOLOR(windType, TK_RED);
|
||
|
|
glVertex2i(-boxW/8, boxH/16);
|
||
|
|
TK_SETCOLOR(windType, TK_BLUE);
|
||
|
|
glVertex2i(boxW/8, boxH/16);
|
||
|
|
TK_SETCOLOR(windType, TK_WHITE);
|
||
|
|
glVertex2i(boxW/4, boxH/4);
|
||
|
|
glEnd();
|
||
|
|
|
||
|
|
glBegin(GL_QUADS);
|
||
|
|
glVertex2i(0, 0);
|
||
|
|
glVertex2i(100, 100);
|
||
|
|
glVertex2i(-100, 100);
|
||
|
|
glEnd();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void QuadStrip(void)
|
||
|
|
{
|
||
|
|
|
||
|
|
glBegin(GL_QUAD_STRIP);
|
||
|
|
TK_SETCOLOR(windType, TK_GREEN);
|
||
|
|
glVertex2i(-boxW/4, -boxH/4);
|
||
|
|
TK_SETCOLOR(windType, TK_RED);
|
||
|
|
glVertex2i(-boxW/4, boxH/4);
|
||
|
|
TK_SETCOLOR(windType, TK_BLUE);
|
||
|
|
glVertex2i(0, -boxH/4);
|
||
|
|
TK_SETCOLOR(windType, TK_WHITE);
|
||
|
|
glVertex2i(0, boxH/4);
|
||
|
|
TK_SETCOLOR(windType, TK_CYAN);
|
||
|
|
glVertex2i(boxW/4, -boxH/4);
|
||
|
|
TK_SETCOLOR(windType, TK_YELLOW);
|
||
|
|
glVertex2i(boxW/4, boxH/4);
|
||
|
|
glEnd();
|
||
|
|
|
||
|
|
glBegin(GL_QUAD_STRIP);
|
||
|
|
glVertex2i(0, 0);
|
||
|
|
glVertex2i(100, 100);
|
||
|
|
glVertex2i(-100, 100);
|
||
|
|
glEnd();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void Draw(void)
|
||
|
|
{
|
||
|
|
|
||
|
|
glViewport(0, 0, windW, windH);
|
||
|
|
glDisable(GL_SCISSOR_TEST);
|
||
|
|
|
||
|
|
glPushAttrib(GL_COLOR_BUFFER_BIT);
|
||
|
|
|
||
|
|
glColorMask(1, 1, 1, 1);
|
||
|
|
glIndexMask(~0);
|
||
|
|
|
||
|
|
glClearColor(0.0, 0.0, 0.0, 0.0);
|
||
|
|
glClear(GL_COLOR_BUFFER_BIT);
|
||
|
|
|
||
|
|
glPopAttrib();
|
||
|
|
|
||
|
|
if (mode1) {
|
||
|
|
glShadeModel(GL_SMOOTH);
|
||
|
|
} else {
|
||
|
|
glShadeModel(GL_FLAT);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (mode2) {
|
||
|
|
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
|
||
|
|
} else {
|
||
|
|
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
|
||
|
|
}
|
||
|
|
|
||
|
|
Viewport(0, 0); Point();
|
||
|
|
Viewport(0, 1); Lines();
|
||
|
|
Viewport(0, 2); LineStrip();
|
||
|
|
Viewport(0, 3); LineLoop();
|
||
|
|
|
||
|
|
Viewport(1, 0); Bitmap();
|
||
|
|
|
||
|
|
Viewport(1, 1); TriangleFan();
|
||
|
|
Viewport(1, 2); Triangles();
|
||
|
|
Viewport(1, 3); TriangleStrip();
|
||
|
|
|
||
|
|
Viewport(2, 0); Rect();
|
||
|
|
Viewport(2, 1); tprimPolygon();
|
||
|
|
Viewport(2, 2); Quads();
|
||
|
|
Viewport(2, 3); QuadStrip();
|
||
|
|
|
||
|
|
glFlush();
|
||
|
|
|
||
|
|
if (doubleBuffer) {
|
||
|
|
tkSwapBuffers();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static GLenum Args(int argc, char **argv)
|
||
|
|
{
|
||
|
|
GLint i;
|
||
|
|
|
||
|
|
rgb = GL_TRUE;
|
||
|
|
doubleBuffer = GL_FALSE;
|
||
|
|
directRender = GL_FALSE;
|
||
|
|
|
||
|
|
for (i = 1; i < argc; i++) {
|
||
|
|
if (strcmp(argv[i], "-ci") == 0) {
|
||
|
|
rgb = GL_FALSE;
|
||
|
|
} else if (strcmp(argv[i], "-rgb") == 0) {
|
||
|
|
rgb = GL_TRUE;
|
||
|
|
} else if (strcmp(argv[i], "-sb") == 0) {
|
||
|
|
doubleBuffer = GL_FALSE;
|
||
|
|
} else if (strcmp(argv[i], "-db") == 0) {
|
||
|
|
doubleBuffer = GL_TRUE;
|
||
|
|
} else if (strcmp(argv[i], "-dr") == 0) {
|
||
|
|
directRender = GL_TRUE;
|
||
|
|
} else if (strcmp(argv[i], "-ir") == 0) {
|
||
|
|
directRender = GL_FALSE;
|
||
|
|
} else {
|
||
|
|
printf("%s (Bad option).\n", argv[i]);
|
||
|
|
return GL_FALSE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return GL_TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
void main(int argc, char **argv)
|
||
|
|
{
|
||
|
|
|
||
|
|
if (Args(argc, argv) == GL_FALSE) {
|
||
|
|
tkQuit();
|
||
|
|
}
|
||
|
|
|
||
|
|
windW = 600;
|
||
|
|
windH = 300;
|
||
|
|
tkInitPosition(0, 0, windW, windH);
|
||
|
|
|
||
|
|
windType = (rgb) ? TK_RGB : TK_INDEX;
|
||
|
|
windType |= (doubleBuffer) ? TK_DOUBLE : TK_SINGLE;
|
||
|
|
windType |= (directRender) ? TK_DIRECT : TK_INDIRECT;
|
||
|
|
tkInitDisplayMode(windType);
|
||
|
|
|
||
|
|
if (tkInitWindow("Primitive Test") == GL_FALSE) {
|
||
|
|
tkQuit();
|
||
|
|
}
|
||
|
|
|
||
|
|
Init();
|
||
|
|
|
||
|
|
tkExposeFunc(Reshape);
|
||
|
|
tkReshapeFunc(Reshape);
|
||
|
|
tkKeyDownFunc(Key);
|
||
|
|
tkDisplayFunc(Draw);
|
||
|
|
tkExec();
|
||
|
|
}
|