Source code of Windows XP (NT5)
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/*
* (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* Unpublished-- rights reserved under the copyright laws of the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();
}