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- /*
- * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc.
- *
- * Permission to use, copy, modify, distribute, and sell this software and
- * its documentation for any purpose is hereby granted without fee, provided
- * that (i) the above copyright notices and this permission notice appear in
- * all copies of the software and related documentation, and (ii) the name of
- * Silicon Graphics may not be used in any advertising or
- * publicity relating to the software without the specific, prior written
- * permission of Silicon Graphics.
- *
- * THE SOFTWARE IS PROVIDED "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 BE LIABLE FOR
- * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
- * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
- * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
- * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
- * OF THIS SOFTWARE.
- */
-
- #include <stdio.h>
- #include <string.h>
- #include <stdlib.h>
- #include "gltk.h"
-
-
- GLenum rgb, doubleBuffer, directRender, windType;
- int windX, windY;
- int cursor;
- GLubyte shape[] = {
- 0x00, 0x00,
- 0x7F, 0xFE,
- 0x40, 0x02,
- 0x40, 0x02,
- 0x40, 0x02,
- 0x40, 0x02,
- 0x40, 0x02,
- 0x40, 0x02,
- 0x40, 0x02,
- 0x40, 0x02,
- 0x40, 0x02,
- 0x40, 0x02,
- 0x40, 0x02,
- 0x40, 0x02,
- 0x7F, 0xFE,
- 0x00, 0x00
- };
- GLubyte mask[] = {
- 0xFF, 0xFF,
- 0xFF, 0xFF,
- 0xFF, 0xFF,
- 0xE0, 0x07,
- 0xE0, 0x07,
- 0xE0, 0x07,
- 0xE0, 0x07,
- 0xE0, 0x07,
- 0xE0, 0x07,
- 0xE0, 0x07,
- 0xE0, 0x07,
- 0xE0, 0x07,
- 0xE0, 0x07,
- 0xFF, 0xFF,
- 0xFF, 0xFF,
- 0xFF, 0xFF
- };
-
-
- static void Init(void)
- {
- int i;
-
- for (i = TK_BLACK; i <= TK_WHITE; i++) {
- tkNewCursor(i, shape, mask, i, TK_WHITE, 0, 0);
- }
- for (i = TK_BLACK; i <= TK_WHITE; i++) {
- tkNewCursor(i+TK_WHITE, shape, mask, TK_WHITE, i, 0, 0);
- }
- cursor = TK_BLACK;
- tkSetCursor(cursor);
- glClearColor(0.0, 0.0, 0.0, 0.0);
- glClearIndex(0.0);
- }
-
- static void Reshape(int width, int height)
- {
-
- windX = width;
- windY = height;
- glViewport(0, 0, windX, windY);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- gluOrtho2D(0, windX, 0, windY);
- glMatrixMode(GL_MODELVIEW);
- }
-
- static GLenum Key(int key, GLenum mask)
- {
-
- switch (key) {
- case TK_ESCAPE:
- tkQuit();
- case TK_SPACE:
- cursor++;
- if (cursor > TK_WHITE*2) {
- cursor = TK_BLACK;
- }
- tkSetCursor(cursor);
- default:
- return GL_FALSE;
- }
- return GL_TRUE;
- }
-
- static void Draw(void)
- {
-
- glClear(GL_COLOR_BUFFER_BIT);
-
- glBegin(GL_POLYGON);
- TK_SETCOLOR(windType, TK_BLACK);
- glVertex2i(0, 0);
- TK_SETCOLOR(windType, TK_RED);
- glVertex2i(windX, 0);
- TK_SETCOLOR(windType, TK_GREEN);
- glVertex2i(windX, windY);
- TK_SETCOLOR(windType, TK_BLUE);
- glVertex2i(0, windY);
- glEnd();
-
- glFlush();
-
- if (doubleBuffer) {
- tkSwapBuffers();
- }
- }
-
- static GLenum Args(int argc, char **argv)
- {
- GLint i;
-
- rgb = GL_TRUE;
- doubleBuffer = GL_FALSE;
- directRender = GL_TRUE;
-
- 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();
- }
-
- windX = 300;
- windY = 300;
- tkInitPosition(0, 0, windX, windY);
-
- windType = (rgb) ? TK_RGB : TK_INDEX;
- windType |= (doubleBuffer) ? TK_DOUBLE : TK_SINGLE;
- windType |= (directRender) ? TK_DIRECT : TK_INDIRECT;
- tkInitDisplayMode(windType);
-
- if (tkInitWindow("Cursor Test") == GL_FALSE) {
- tkQuit();
- }
-
- Init();
-
- tkExposeFunc(Reshape);
- tkReshapeFunc(Reshape);
- tkKeyDownFunc(Key);
- tkDisplayFunc(Draw);
- tkExec();
- }
-