/* ** $VER: tex_test.c 1.0 (20.03.1997) ** ** This is an example program for CyberGL ** ** Written by Frank Gerberding ** ** Copyright © 1996-1997 by phase5 digital products ** All Rights reserved. ** */ #include #include #include #include #define CYBERGLNAME "cybergl.library" #define CYBERGLVERSION 39L #define SHARED /* we use the cybergl shared library */ #define GL_APICOMPATIBLE /* we use stubs from cybergl.lib */ #include "cybergl.h" #include "cybergl_protos.h" #include "cybergl_display.h" #ifdef SHARED LONG __oslibversion = 39L; LONG __CGLlibversion = CYBERGLVERSION; #include "cybergl_pragmas.h" extern struct Library *CyberGLBase; #endif #define WIDTH 640 #define HEIGHT 480 GLushort rMap256 [256] = { 0x0000, 0x0000, 0x0CCC, 0x0CCC, 0x1444, 0x1000, 0x1000, 0x1888, 0x2444, 0x2444, 0x2444, 0x2000, 0x2444, 0x2000, 0x3111, 0x3111, 0x2000, 0x3111, 0x2888, 0x3555, 0x3111, 0x3111, 0x2888, 0x3999, 0x3111, 0x4111, 0x3999, 0x3555, 0x3111, 0x4555, 0x4555, 0x4555, 0x3999, 0x4111, 0x4DDD, 0x3999, 0x5111, 0x4999, 0x4DDD, 0x4555, 0x4555, 0x5555, 0x3999, 0x5555, 0x5111, 0x4111, 0x5111, 0x4999, 0x5555, 0x5555, 0x5555, 0x4999, 0x4999, 0x5111, 0x6555, 0x5999, 0x6555, 0x4111, 0x5999, 0x6111, 0x5555, 0x4DDD, 0x6999, 0x6111, 0x6999, 0x5111, 0x6111, 0x6999, 0x6111, 0x6555, 0x7555, 0x5111, 0x6555, 0x4DDD, 0x6555, 0x6111, 0x7555, 0x5DDD, 0x6999, 0x7999, 0x4DDD, 0x6555, 0x6555, 0x5999, 0x7555, 0x7999, 0x7111, 0x5DDD, 0x6999, 0x7555, 0x6999, 0x7111, 0x7111, 0x8666, 0x7DDD, 0x6555, 0x5111, 0x7555, 0x7111, 0x5999, 0x8666, 0x6111, 0x8AAA, 0x7111, 0x7999, 0x7555, 0x7111, 0x6999, 0x8666, 0x6DDD, 0x5DDD, 0x8222, 0x6999, 0x8EEE, 0x7999, 0x8666, 0x8222, 0x9222, 0x7111, 0x7999, 0x9666, 0x6DDD, 0x6111, 0x8666, 0x8666, 0x6111, 0x6999, 0x8222, 0x7111, 0x9AAA, 0x8666, 0x8222, 0x6DDD, 0x9EEE, 0x7111, 0x8EEE, 0x7DDD, 0x7111, 0x8EEE, 0x9EEE, 0x6999, 0xA666, 0x8EEE, 0x8AAA, 0x8AAA, 0x8AAA, 0x7999, 0xA666, 0x7111, 0x8AAA, 0x9EEE, 0x8666, 0x9666, 0x6DDD, 0x8AAA, 0x9222, 0x7999, 0x9666, 0x8666, 0x9AAA, 0x9666, 0x8666, 0x9AAA, 0x9666, 0x9AAA, 0x8AAA, 0x8666, 0x9666, 0x7999, 0x8AAA, 0x9EEE, 0x9AAA, 0x8AAA, 0x8666, 0x9666, 0xA666, 0x9AAA, 0xA666, 0x9AAA, 0xA222, 0xA666, 0xAEEE, 0x9666, 0x9666, 0x9EEE, 0x9222, 0xAEEE, 0x9EEE, 0x9EEE, 0x9AAA, 0xAEEE, 0xAEEE, 0x9EEE, 0xBAAA, 0xA666, 0x8EEE, 0xB666, 0xAEEE, 0xB666, 0xA666, 0xA222, 0xAEEE, 0xB666, 0xB222, 0xAAAA, 0xAEEE, 0xAEEE, 0xBEEE, 0xB222, 0xC222, 0xAAAA, 0xB222, 0xB666, 0xBAAA, 0xBAAA, 0xB666, 0xCAAA, 0xB666, 0xC666, 0xC666, 0xC666, 0xBEEE, 0xC666, 0xB666, 0xC666, 0xCEEE, 0xCEEE, 0xCEEE, 0xD666, 0xCEEE, 0xD666, 0xD666, 0xB666, 0xDFFF, 0xDFFF, 0xDBBB, 0xE333, 0xDFFF, 0xE333, 0xE777, 0xE777, 0xEFFF, 0xEFFF, 0xEFFF, 0xF777, 0xF777, 0xF777, 0xFBBB, 0xFBBB, 0xFBBB, 0xF777, 0xF333, 0xFBBB, 0xF333, 0xF777, 0xF333 }; GLushort gMap256 [256] = { 0x0000, 0x0000, 0x0888, 0x1000, 0x0444, 0x1000, 0x1000, 0x1888, 0x0000, 0x0444, 0x0CCC, 0x1444, 0x1888, 0x2000, 0x0CCC, 0x0000, 0x2000, 0x1888, 0x2444, 0x0CCC, 0x2000, 0x2000, 0x2444, 0x2000, 0x2888, 0x0CCC, 0x2888, 0x2DDD, 0x3111, 0x1000, 0x1CCC, 0x2888, 0x3555, 0x3111, 0x2888, 0x3999, 0x1000, 0x3111, 0x2888, 0x2DDD, 0x3555, 0x1888, 0x3999, 0x1000, 0x1CCC, 0x3999, 0x3111, 0x3999, 0x3555, 0x2DDD, 0x3999, 0x4111, 0x4111, 0x3999, 0x1444, 0x3999, 0x1444, 0x3DDD, 0x4111, 0x3555, 0x4555, 0x4999, 0x1888, 0x3999, 0x2444, 0x4DDD, 0x4111, 0x2888, 0x4111, 0x3555, 0x1888, 0x5111, 0x4111, 0x4DDD, 0x4999, 0x4999, 0x1888, 0x4DDD, 0x4555, 0x2444, 0x4DDD, 0x4999, 0x4111, 0x5111, 0x1CCC, 0x2444, 0x4555, 0x5555, 0x4999, 0x3111, 0x5111, 0x4DDD, 0x4999, 0x1444, 0x2DDD, 0x5555, 0x5111, 0x3DDD, 0x5111, 0x5111, 0x2000, 0x5999, 0x1CCC, 0x5555, 0x5111, 0x5555, 0x5999, 0x6111, 0x3555, 0x5999, 0x5999, 0x4555, 0x6111, 0x2888, 0x5999, 0x5555, 0x4999, 0x2000, 0x6555, 0x5999, 0x2DDD, 0x6555, 0x6111, 0x5999, 0x5999, 0x5999, 0x6111, 0x6111, 0x6999, 0x2444, 0x5555, 0x6111, 0x6555, 0x2888, 0x6999, 0x6111, 0x6999, 0x6DDD, 0x6111, 0x3DDD, 0x6111, 0x2888, 0x6111, 0x6111, 0x6999, 0x6999, 0x7111, 0x2888, 0x7111, 0x6999, 0x5111, 0x7111, 0x6999, 0x6DDD, 0x7555, 0x6111, 0x7555, 0x6999, 0x7999, 0x6DDD, 0x7111, 0x7999, 0x6111, 0x7111, 0x7555, 0x7999, 0x7DDD, 0x7555, 0x7999, 0x8666, 0x7999, 0x7999, 0x8666, 0x8222, 0x8222, 0x7999, 0x8666, 0x7999, 0x8AAA, 0x7999, 0x8666, 0x7555, 0x8EEE, 0x7DDD, 0x8EEE, 0x8AAA, 0x8666, 0x8AAA, 0x9666, 0x8EEE, 0x8AAA, 0x8AAA, 0x9222, 0x7999, 0x9666, 0x8EEE, 0x8AAA, 0x9222, 0x9222, 0x9AAA, 0x9666, 0x9AAA, 0x9666, 0x9AAA, 0x9AAA, 0xA666, 0xA666, 0x9AAA, 0xAAAA, 0x9AAA, 0xA666, 0xAAAA, 0xAAAA, 0xAEEE, 0xAEEE, 0xAEEE, 0xA222, 0xAAAA, 0xB222, 0xB222, 0xBAAA, 0xB666, 0xBAAA, 0xAEEE, 0xBAAA, 0xBEEE, 0xBEEE, 0xC666, 0xC222, 0xC666, 0xC666, 0xC666, 0xB666, 0xCEEE, 0xC666, 0xCEEE, 0xD666, 0xD666, 0xCEEE, 0xD666, 0xDBBB, 0xDFFF, 0xD666, 0xDFFF, 0xE777, 0xE777, 0xEFFF, 0xF333, 0xF777, 0xF777, 0xFFFF, 0xF333, 0xFBBB, 0xF333, 0xFBBB, 0xF333 }; GLushort bMap256 [256] = { 0x0000, 0x0888, 0x0444, 0x0000, 0x0444, 0x0888, 0x1000, 0x0CCC, 0x0888, 0x0000, 0x0444, 0x0444, 0x0888, 0x0CCC, 0x0888, 0x0888, 0x1888, 0x0000, 0x0CCC, 0x1000, 0x0444, 0x1888, 0x2444, 0x0444, 0x1888, 0x1000, 0x0444, 0x1000, 0x1888, 0x1444, 0x0888, 0x0444, 0x1888, 0x0CCC, 0x0444, 0x2000, 0x1888, 0x0888, 0x1444, 0x2000, 0x1888, 0x1444, 0x2DDD, 0x2000, 0x2000, 0x2000, 0x0888, 0x1444, 0x0444, 0x2000, 0x1000, 0x2888, 0x2444, 0x2444, 0x1CCC, 0x0888, 0x2000, 0x4111, 0x1444, 0x0000, 0x2000, 0x2888, 0x2000, 0x0CCC, 0x2000, 0x2888, 0x0888, 0x2444, 0x1444, 0x2888, 0x2000, 0x3555, 0x2444, 0x3DDD, 0x0CCC, 0x1888, 0x2888, 0x2888, 0x1000, 0x1CCC, 0x4999, 0x1CCC, 0x3111, 0x3111, 0x3111, 0x2888, 0x0CCC, 0x2DDD, 0x2DDD, 0x3111, 0x2000, 0x1000, 0x1888, 0x2888, 0x2888, 0x2DDD, 0x5555, 0x3555, 0x1888, 0x4DDD, 0x2888, 0x3DDD, 0x3111, 0x2888, 0x1444, 0x2000, 0x3111, 0x3111, 0x3111, 0x3DDD, 0x5111, 0x2DDD, 0x3999, 0x3111, 0x2888, 0x1444, 0x3999, 0x3555, 0x3111, 0x3555, 0x2888, 0x3DDD, 0x5111, 0x2000, 0x2888, 0x6111, 0x4DDD, 0x2000, 0x3DDD, 0x3555, 0x3999, 0x2DDD, 0x5111, 0x3999, 0x4DDD, 0x2000, 0x3DDD, 0x4999, 0x2888, 0x3555, 0x6555, 0x3555, 0x2DDD, 0x3DDD, 0x2888, 0x3555, 0x4555, 0x3999, 0x5555, 0x3999, 0x3DDD, 0x4111, 0x2DDD, 0x6555, 0x3999, 0x4DDD, 0x5555, 0x3999, 0x4111, 0x2888, 0x3111, 0x4DDD, 0x4DDD, 0x3999, 0x3111, 0x4999, 0x5555, 0x4555, 0x6DDD, 0x4999, 0x3999, 0x4555, 0x5555, 0x6111, 0x4DDD, 0x3555, 0x4111, 0x4555, 0x4999, 0x5555, 0x4111, 0x4555, 0x5111, 0x6999, 0x4999, 0x6555, 0x3DDD, 0x5999, 0x5555, 0x6555, 0x4555, 0x4DDD, 0x6555, 0x5555, 0x5555, 0x8666, 0x4DDD, 0x5111, 0x4555, 0x5999, 0x6DDD, 0x5999, 0x5555, 0x5555, 0x6555, 0x5999, 0x6555, 0x5DDD, 0x6111, 0x6555, 0x7999, 0x6999, 0x6DDD, 0x6111, 0x6999, 0x7999, 0x6DDD, 0x8666, 0x6555, 0x6DDD, 0x6111, 0x7999, 0x6DDD, 0x9AAA, 0x7DDD, 0x6DDD, 0x7DDD, 0x7111, 0x6DDD, 0x7DDD, 0x7111, 0x7DDD, 0xB666, 0x7111, 0x7DDD, 0x7999, 0x7111, 0x7DDD, 0x8222, 0x7DDD, 0x8EEE, 0x8222, 0x8EEE, 0x8EEE, 0x8222, 0x8EEE, 0x9222, 0x9AAA, 0x9EEE, 0xAEEE, 0xAAAA, 0xCAAA, 0xB666, 0xD666, 0xCEEE, 0xEFFF }; GLushort rMap4 [4] = { 52500, 45900, 00000, 00000 }; GLushort gMap4 [4] = { 52500, 00000, 59000, 00000 }; GLushort bMap4 [4] = { 52500, 00000, 00000, 32800 }; GLubyte *loadTexture4 (void) { FILE *file; GLubyte *texture = NULL; if (file = fopen ("PROGDIR:texture4.raw", "r")) { if (texture = malloc (16384)) { fread (texture, 16384, 1, file); } fclose (file); } return texture; } GLubyte *loadTexture256 (void) { FILE *file; GLubyte *texture = NULL; if (file = fopen ("PROGDIR:texture256.raw", "r")) { if (texture = malloc (65536)) { fread (texture, 65536, 1, file); } fclose (file); } return texture; } void drawFloor (int patches, GLdouble height, GLdouble factor) { GLdouble x, z; GLdouble dx, dz, ds, dt; GLdouble s, t; dx = 20.0 / ((GLdouble) patches); dz = 20.0 / ((GLdouble) patches); ds = 2.0 / ((GLdouble) patches); dt = 2.0 / ((GLdouble) patches); t = 1.0; factor *= 2.0; glColor3d (1.0, 1.0, 1.0); glNormal3d (0.0, 1.0, 0.0); srand (time (NULL)); for (z = -10.0; z < 10.0; z += dz) { s = -1.0; glBegin (GL_QUAD_STRIP); for (x = -10.0; x <= 10.0; x += dx) { glEdgeFlag (GL_TRUE); glTexCoord2d (s / factor + 0.5, t / factor + 0.5); glVertex3d (x, height, z); glEdgeFlag (GL_FALSE); glTexCoord2d (s / factor + 0.5, (t - dt) / factor + 0.5); glVertex3d (x, height, z + dz); s += ds; } glEnd (); t -= dt; } } void spotLight (GLdouble x, GLdouble y, GLdouble z, GLdouble dx, GLdouble dy, GLdouble dz, GLdouble r, GLdouble g, GLdouble b, GLdouble att0, GLdouble att1, GLdouble att2, GLdouble exp, GLdouble cut, GLenum light) { GLfloat pos [4]; GLfloat dir [3]; GLfloat color [4]; pos [0] = (GLfloat) x; pos [1] = (GLfloat) y; pos [2] = (GLfloat) z; pos [3] = (GLfloat) 1.0; dir [0] = (GLfloat) dx; dir [1] = (GLfloat) dy; dir [2] = (GLfloat) dz; color [0] = (GLfloat) r; color [1] = (GLfloat) g; color [2] = (GLfloat) b; color [3] = (GLfloat) 0.0; glEnable (GL_LIGHTING); glEnable (light); glLightfv (light, GL_POSITION, pos); glLightfv (light, GL_DIFFUSE, color); glLightfv (light, GL_SPECULAR, color); glLightfv (light, GL_SPOT_DIRECTION, dir); glLightf (light, GL_SPOT_CUTOFF, (GLfloat) cut); glLightf (light, GL_SPOT_EXPONENT, (GLfloat) exp); glLightf (light, GL_CONSTANT_ATTENUATION, (GLfloat) att0); glLightf (light, GL_LINEAR_ATTENUATION, (GLfloat) att1); glLightf (light, GL_QUADRATIC_ATTENUATION, (GLfloat) att2); } void handle_window_events (struct Window *window) { struct IntuiMessage *msg; int done = 0; while (!done) { Wait (1L << window->UserPort->mp_SigBit); while ((!done) && (msg = (struct IntuiMessage *) GetMsg (window->UserPort))) { switch (msg->Class) { case IDCMP_CLOSEWINDOW: done = 1; break; } ReplyMsg ((struct Message *) msg); } } } void main (int argc, char *argv []) { void *window; GLubyte *texture; GLfloat color [4] = {1.0f, 1.0f, 1.0f, 0.0f}; GLdouble factor = 1.0; GLint linear = 0; if (argc < 2) return; if (atoi (argv [1]) == 1) { texture = loadTexture4 (); } else { texture = loadTexture256 (); } if (argc > 2) { sscanf (argv [2], "%lf", &factor); } if ((argc > 3) && (*argv [3] == 'l')) { linear = 1; } window = openGLWindowTags (WIDTH, HEIGHT, GLWA_Title, "tex_test", GLWA_IDCMP, IDCMP_CLOSEWINDOW, GLWA_CloseGadget, TRUE, GLWA_DepthGadget, TRUE, GLWA_DragBar, TRUE, GLWA_Activate, TRUE, GLWA_RGBAMode, GL_TRUE, TAG_DONE); if (!window) return; glEnable (GL_DITHER); glShadeModel (GL_SMOOTH); glLightModeli (GL_LIGHT_MODEL_TWO_SIDE, GL_FALSE); glDepthFunc (GL_LESS); glEnable (GL_DEPTH_TEST); glClearColor ((GLfloat) 0.3, (GLfloat) 0.3, (GLfloat) 0.3, (GLfloat) 1.0); glClearDepth (1.0); glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glMatrixMode (GL_TEXTURE); glRotated (0.0, 0.0, 0.0, 1.0); glMatrixMode (GL_PROJECTION); glPerspective (40.0, 1.333, 0.5, 50.5); glMatrixMode (GL_MODELVIEW); #ifndef GL_APICOMPATIBLE { GLlookAt lookat; lookat.eyex = 4.0; lookat.eyey = 12.0; lookat.eyez = 20.0; lookat.centerx = 0.0; lookat.centery = 0.0; lookat.centerz = 0.0; lookat.upx = 0.0; lookat.upy = 1.0; lookat.upz = 0.0; glLookAt (&lookat); } #else glLookAt (4.0, 12.0, 20.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0); #endif glPixelStorei (GL_UNPACK_ALIGNMENT, 1); if (atoi (argv [1]) == 1) { glPixelMapusv (GL_PIXEL_MAP_I_TO_R, 4, rMap4); glPixelMapusv (GL_PIXEL_MAP_I_TO_G, 4, gMap4); glPixelMapusv (GL_PIXEL_MAP_I_TO_B, 4, bMap4); glTexImage2D (GL_TEXTURE_2D, 0, 3, 128, 128, 0, GL_COLOR_INDEX, GL_UNSIGNED_BYTE, texture); } else { glPixelMapusv (GL_PIXEL_MAP_I_TO_R, 256, rMap256); glPixelMapusv (GL_PIXEL_MAP_I_TO_G, 256, gMap256); glPixelMapusv (GL_PIXEL_MAP_I_TO_B, 256, bMap256); glTexImage2D (GL_TEXTURE_2D, 0, 3, 256, 256, 0, GL_COLOR_INDEX, GL_UNSIGNED_BYTE, texture); } glEnable (GL_TEXTURE_2D); glTexParameterfv (GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, color); if (linear) { glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); } else { glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); } glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); glTexEnvfv (GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, color); glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); spotLight (10.0, 10.0, 10.0, -1.0, -1.0, -1.0, 1.0, 1.0, 1.0, 1.0, 0.0, 0.0, 15.0, 50.0, GL_LIGHT0); drawFloor (20, 0.0, factor); handle_window_events (getWindow (window)); closeGLWindow (window); free (texture); }