diff options
author | Eric Anholt <eric@anholt.net> | 2010-05-21 09:32:38 -0700 |
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committer | Eric Anholt <eric@anholt.net> | 2010-05-21 12:20:39 -0700 |
commit | 68fc4b415e322f6744299e39864fbc377c6eff74 (patch) | |
tree | 4bafffd8b0105174f3c5c0ae327a005be9145990 /progs/demos/ipers.c | |
parent | e4f4489e3fc0b36d72821b55794fb843b2b7fa5f (diff) |
Remove demos that have moved to git+ssh://git.freedesktop.org/git/mesa/demos.
The remaining programs are ones I've had difficulty finding a build
environment for to make the build system or are unit tests that should
probably live next to their code instead. Hopefully people can bring
over the build for remaining pieces they care about.
Diffstat (limited to 'progs/demos/ipers.c')
-rw-r--r-- | progs/demos/ipers.c | 731 |
1 files changed, 0 insertions, 731 deletions
diff --git a/progs/demos/ipers.c b/progs/demos/ipers.c deleted file mode 100644 index 265378b90a..0000000000 --- a/progs/demos/ipers.c +++ /dev/null @@ -1,731 +0,0 @@ -/* - * This program is under the GNU GPL. - * Use at your own risk. - * - * written by David Bucciarelli (tech.hmw@plus.it) - * Humanware s.r.l. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <math.h> -#include <string.h> - -#if defined (WIN32)|| defined(_WIN32) -#include <windows.h> -#include <mmsystem.h> -#endif - -#include <GL/glut.h> - -#include "readtex.h" - -#ifdef XMESA -#include "GL/xmesa.h" -static int fullscreen = 1; -#endif - -static int WIDTH = 640; -static int HEIGHT = 480; - -static GLint T0; -static GLint Frames; - -#define MAX_LOD 9 - -#define TEX_SKY_WIDTH 256 -#define TEX_SKY_HEIGHT TEX_SKY_WIDTH - -#ifndef M_PI -#define M_PI 3.1415926535 -#endif - -#define FROM_NONE 0 -#define FROM_DOWN 1 -#define FROM_UP 2 -#define FROM_LEFT 3 -#define FROM_RIGHT 4 -#define FROM_FRONT 5 -#define FROM_BACK 6 - -static int win = 0; - -static float obs[3] = { 3.8, 0.0, 0.0 }; -static float dir[3]; -static float v = 0.0; -static float alpha = -90.0; -static float beta = 90.0; - -static int fog = 1; -static int bfcull = 1; -static int usetex = 1; -static int help = 1; -static int poutline = 0; -static int normext = 1; -static int joyavailable = 0; -static int joyactive = 0; -static int LODbias = 3; -static int maxdepth = MAX_LOD; - -static unsigned int totpoly = 0; - -static GLuint t1id, t2id; -static GLuint skydlist, LODdlist[MAX_LOD], LODnumpoly[MAX_LOD]; - -static void -initlight(void) -{ - GLfloat lspec[4] = { 1.0, 1.0, 1.0, 1.0 }; - static GLfloat lightpos[4] = { 30, 15.0, 30.0, 1.0 }; - - glLightfv(GL_LIGHT0, GL_POSITION, lightpos); - glLightfv(GL_LIGHT0, GL_SPECULAR, lspec); - - glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 32.0); - glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, lspec); -} - -static void -initdlists(void) -{ - static int slicetable[MAX_LOD][2] = { - {21, 10}, - {18, 9}, - {15, 8}, - {12, 7}, - {9, 6}, - {7, 5}, - {5, 4}, - {4, 3}, - {3, 2} - }; - GLUquadricObj *obj; - int i, xslices, yslices; - - obj = gluNewQuadric(); - - skydlist = glGenLists(1); - glNewList(skydlist, GL_COMPILE); - glBindTexture(GL_TEXTURE_2D, t2id); - glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); - glColor3f(1.0f, 1.0f, 1.0f); - - gluQuadricDrawStyle(obj, GLU_FILL); - gluQuadricNormals(obj, GLU_NONE); - gluQuadricTexture(obj, GL_TRUE); - gluQuadricOrientation(obj, GLU_INSIDE); - gluSphere(obj, 40.0f, 18, 9); - - glEndList(); - - for (i = 0; i < MAX_LOD; i++) { - LODdlist[i] = glGenLists(1); - glNewList(LODdlist[i], GL_COMPILE); - - gluQuadricDrawStyle(obj, GLU_FILL); - gluQuadricNormals(obj, GLU_SMOOTH); - gluQuadricTexture(obj, GL_TRUE); - gluQuadricOrientation(obj, GLU_OUTSIDE); - xslices = slicetable[i][0]; - yslices = slicetable[i][1]; - gluSphere(obj, 1.0f, xslices, yslices); - LODnumpoly[i] = xslices * (yslices - 2) + 2 * (xslices - 1); - - glEndList(); - } - - gluDeleteQuadric(obj); -} - -static void -inittextures(void) -{ - GLubyte tsky[TEX_SKY_HEIGHT][TEX_SKY_WIDTH][3]; - GLuint x, y; - GLfloat fact; - GLenum gluerr; - - /* Brick */ - - glGenTextures(1, &t1id); - glBindTexture(GL_TEXTURE_2D, t1id); - - if (!LoadRGBMipmaps("../images/bw.rgb", 3)) { - fprintf(stderr, "Error reading a texture.\n"); - exit(-1); - } - - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); - - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, - GL_LINEAR_MIPMAP_LINEAR); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - - /* Sky */ - - glGenTextures(1, &t2id); - glBindTexture(GL_TEXTURE_2D, t2id); - - for (y = 0; y < TEX_SKY_HEIGHT; y++) - for (x = 0; x < TEX_SKY_WIDTH; x++) - if (y < TEX_SKY_HEIGHT / 2) { - fact = y / (GLfloat) (TEX_SKY_HEIGHT / 2); - tsky[y][x][0] = - (GLubyte) (255.0f * (0.1f * fact + 0.3f * (1.0f - fact))); - tsky[y][x][1] = - (GLubyte) (255.0f * (0.2f * fact + 1.0f * (1.0f - fact))); - tsky[y][x][2] = 255; - } - else { - tsky[y][x][0] = tsky[TEX_SKY_HEIGHT - y - 1][x][0]; - tsky[y][x][1] = tsky[TEX_SKY_HEIGHT - y - 1][x][1]; - tsky[y][x][2] = 255; - } - - glPixelStorei(GL_UNPACK_ALIGNMENT, 1); - if ( - (gluerr = - gluBuild2DMipmaps(GL_TEXTURE_2D, 3, TEX_SKY_WIDTH, TEX_SKY_HEIGHT, - GL_RGB, GL_UNSIGNED_BYTE, (GLvoid *) (tsky)))) { - fprintf(stderr, "GLULib%s\n", (char *) gluErrorString(gluerr)); - exit(-1); - } - - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); - - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, - GL_LINEAR_MIPMAP_LINEAR); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); -} - -static void -calcposobs(void) -{ - dir[0] = sin(alpha * M_PI / 180.0); - dir[1] = cos(alpha * M_PI / 180.0) * sin(beta * M_PI / 180.0); - dir[2] = cos(beta * M_PI / 180.0); - - if (dir[0] < 1.0e-5 && dir[0] > -1.0e-5) - dir[0] = 0; - if (dir[1] < 1.0e-5 && dir[1] > -1.0e-5) - dir[1] = 0; - if (dir[2] < 1.0e-5 && dir[2] > -1.0e-5) - dir[2] = 0; - - obs[0] += v * dir[0]; - obs[1] += v * dir[1]; - obs[2] += v * dir[2]; -} - -static void -special(int k, int x, int y) -{ - switch (k) { - case GLUT_KEY_LEFT: - alpha -= 2.0; - break; - case GLUT_KEY_RIGHT: - alpha += 2.0; - break; - case GLUT_KEY_DOWN: - beta -= 2.0; - break; - case GLUT_KEY_UP: - beta += 2.0; - break; - } -} - -static void -cleanup(void) -{ - int i; - - glDeleteTextures(1, &t1id); - glDeleteTextures(1, &t2id); - - glDeleteLists(skydlist, 1); - for (i = 0; i < MAX_LOD; i++) { - glDeleteLists(LODdlist[i], 1); - glDeleteLists(LODnumpoly[i], 1); - } -} - - -static void -key(unsigned char k, int x, int y) -{ - switch (k) { - case 27: - cleanup(); - exit(0); - break; - - case 'a': - v += 0.01; - break; - case 'z': - v -= 0.01; - break; - -#ifdef XMESA - case ' ': - fullscreen = (!fullscreen); - XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW); - break; -#endif - - case '+': - LODbias--; - break; - case '-': - LODbias++; - break; - case 'j': - joyactive = (!joyactive); - break; - case 'h': - help = (!help); - break; - case 'f': - fog = (!fog); - break; - case 't': - usetex = (!usetex); - break; - case 'n': - normext = (!normext); - break; - case 'b': - if (bfcull) { - glDisable(GL_CULL_FACE); - bfcull = 0; - } - else { - glEnable(GL_CULL_FACE); - bfcull = 1; - } - break; - case 'p': - if (poutline) { - glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); - poutline = 0; - usetex = 1; - } - else { - glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); - poutline = 1; - usetex = 0; - } - break; - } -} - -static void -reshape(int w, int h) -{ - WIDTH = w; - HEIGHT = h; - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - gluPerspective(90.0, w / (float) h, 0.8, 100.0); - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - glViewport(0, 0, w, h); -} - -static void -printstring(void *font, char *string) -{ - int len, i; - - len = (int) strlen(string); - for (i = 0; i < len; i++) - glutBitmapCharacter(font, string[i]); -} - -static void -printhelp(void) -{ - glEnable(GL_BLEND); - glColor4f(0.5, 0.5, 0.5, 0.5); - glRecti(40, 40, 600, 440); - glDisable(GL_BLEND); - - glColor3f(1.0, 0.0, 0.0); - glRasterPos2i(300, 420); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Help"); - - glRasterPos2i(60, 390); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "h - Toggle Help"); - glRasterPos2i(60, 360); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "t - Toggle Textures"); - glRasterPos2i(60, 330); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "f - Toggle Fog"); - glRasterPos2i(60, 300); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "b - Toggle Back face culling"); - glRasterPos2i(60, 270); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Arrow Keys - Rotate"); - glRasterPos2i(60, 240); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "a - Increase velocity"); - glRasterPos2i(60, 210); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "z - Decrease velocity"); - glRasterPos2i(60, 180); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "p - Toggle Wire frame"); - glRasterPos2i(60, 150); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, - "n - Toggle GL_EXT_rescale_normal extension"); - glRasterPos2i(60, 120); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, - "+/- - Increase/decrease the Object maximum LOD"); - - glRasterPos2i(60, 90); - if (joyavailable) - printstring(GLUT_BITMAP_TIMES_ROMAN_24, - "j - Toggle jostick control (Joystick control available)"); - else - printstring(GLUT_BITMAP_TIMES_ROMAN_24, - "(No Joystick control available)"); -} - -static void -dojoy(void) -{ -#ifdef _WIN32 - static UINT max[2] = { 0, 0 }; - static UINT min[2] = { 0xffffffff, 0xffffffff }, center[2]; - MMRESULT res; - JOYINFO joy; - - res = joyGetPos(JOYSTICKID1, &joy); - - if (res == JOYERR_NOERROR) { - joyavailable = 1; - - if (max[0] < joy.wXpos) - max[0] = joy.wXpos; - if (min[0] > joy.wXpos) - min[0] = joy.wXpos; - center[0] = (max[0] + min[0]) / 2; - - if (max[1] < joy.wYpos) - max[1] = joy.wYpos; - if (min[1] > joy.wYpos) - min[1] = joy.wYpos; - center[1] = (max[1] + min[1]) / 2; - - if (joyactive) { - if (fabs(center[0] - (float) joy.wXpos) > 0.1 * (max[0] - min[0])) - alpha -= - 2.0 * (center[0] - (float) joy.wXpos) / (max[0] - min[0]); - if (fabs(center[1] - (float) joy.wYpos) > 0.1 * (max[1] - min[1])) - beta += 2.0 * (center[1] - (float) joy.wYpos) / (max[1] - min[1]); - - if (joy.wButtons & JOY_BUTTON1) - v += 0.01; - if (joy.wButtons & JOY_BUTTON2) - v -= 0.01; - } - } - else - joyavailable = 0; -#endif -} - -static void -drawipers(int depth, int from) -{ - int lod; - - if (depth == maxdepth) - return; - - lod = depth + LODbias; - if (lod < 0) - lod = 0; - if (lod >= MAX_LOD) - return; - - switch (from) { - case FROM_NONE: - glCallList(LODdlist[lod]); - - depth++; - drawipers(depth, FROM_DOWN); - drawipers(depth, FROM_UP); - drawipers(depth, FROM_FRONT); - drawipers(depth, FROM_BACK); - drawipers(depth, FROM_LEFT); - drawipers(depth, FROM_RIGHT); - break; - case FROM_FRONT: - glPushMatrix(); - glTranslatef(0.0f, -1.5f, 0.0f); - glScalef(0.5f, 0.5f, 0.5f); - - glCallList(LODdlist[lod]); - - depth++; - drawipers(depth, FROM_DOWN); - drawipers(depth, FROM_UP); - drawipers(depth, FROM_FRONT); - drawipers(depth, FROM_LEFT); - drawipers(depth, FROM_RIGHT); - glPopMatrix(); - break; - case FROM_BACK: - glPushMatrix(); - glTranslatef(0.0f, 1.5f, 0.0f); - glScalef(0.5f, 0.5f, 0.5f); - - glCallList(LODdlist[lod]); - - depth++; - drawipers(depth, FROM_DOWN); - drawipers(depth, FROM_UP); - drawipers(depth, FROM_BACK); - drawipers(depth, FROM_LEFT); - drawipers(depth, FROM_RIGHT); - glPopMatrix(); - break; - case FROM_LEFT: - glPushMatrix(); - glTranslatef(-1.5f, 0.0f, 0.0f); - glScalef(0.5f, 0.5f, 0.5f); - - glCallList(LODdlist[lod]); - - depth++; - drawipers(depth, FROM_DOWN); - drawipers(depth, FROM_UP); - drawipers(depth, FROM_FRONT); - drawipers(depth, FROM_BACK); - drawipers(depth, FROM_LEFT); - glPopMatrix(); - break; - case FROM_RIGHT: - glPushMatrix(); - glTranslatef(1.5f, 0.0f, 0.0f); - glScalef(0.5f, 0.5f, 0.5f); - - glCallList(LODdlist[lod]); - - depth++; - drawipers(depth, FROM_DOWN); - drawipers(depth, FROM_UP); - drawipers(depth, FROM_FRONT); - drawipers(depth, FROM_BACK); - drawipers(depth, FROM_RIGHT); - glPopMatrix(); - break; - case FROM_DOWN: - glPushMatrix(); - glTranslatef(0.0f, 0.0f, 1.5f); - glScalef(0.5f, 0.5f, 0.5f); - - glCallList(LODdlist[lod]); - - depth++; - drawipers(depth, FROM_DOWN); - drawipers(depth, FROM_FRONT); - drawipers(depth, FROM_BACK); - drawipers(depth, FROM_LEFT); - drawipers(depth, FROM_RIGHT); - glPopMatrix(); - break; - case FROM_UP: - glPushMatrix(); - glTranslatef(0.0f, 0.0f, -1.5f); - glScalef(0.5f, 0.5f, 0.5f); - - glCallList(LODdlist[lod]); - - depth++; - drawipers(depth, FROM_UP); - drawipers(depth, FROM_FRONT); - drawipers(depth, FROM_BACK); - drawipers(depth, FROM_LEFT); - drawipers(depth, FROM_RIGHT); - glPopMatrix(); - break; - } - - totpoly += LODnumpoly[lod]; -} - -static void -draw(void) -{ - static char frbuf[80] = ""; - static GLfloat alpha = 0.0f; - static GLfloat beta = 0.0f; - static float fr = 0.0; - static double t0 = -1.; - double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0; - if (t0 < 0.0) - t0 = t; - dt = t - t0; - t0 = t; - - dojoy(); - - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - - if (usetex) - glEnable(GL_TEXTURE_2D); - else - glDisable(GL_TEXTURE_2D); - - if (fog) - glEnable(GL_FOG); - else - glDisable(GL_FOG); - - glPushMatrix(); - calcposobs(); - gluLookAt(obs[0], obs[1], obs[2], - obs[0] + dir[0], obs[1] + dir[1], obs[2] + dir[2], - 0.0, 0.0, 1.0); - - /* Scene */ - glEnable(GL_DEPTH_TEST); - - glShadeModel(GL_SMOOTH); - glBindTexture(GL_TEXTURE_2D, t1id); - glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); - glColor3f(1.0f, 1.0f, 1.0f); - glEnable(GL_LIGHT0); - glEnable(GL_LIGHTING); - - if (normext) - glEnable(GL_RESCALE_NORMAL_EXT); - else - glEnable(GL_NORMALIZE); - - glPushMatrix(); - glRotatef(alpha, 0.0f, 0.0f, 1.0f); - glRotatef(beta, 1.0f, 0.0f, 0.0f); - totpoly = 0; - drawipers(0, FROM_NONE); - glPopMatrix(); - - alpha += 4.f * dt; - beta += 2.4f * dt; - - glDisable(GL_LIGHTING); - glDisable(GL_LIGHT0); - glShadeModel(GL_FLAT); - - if (normext) - glDisable(GL_RESCALE_NORMAL_EXT); - else - glDisable(GL_NORMALIZE); - - glCallList(skydlist); - - glPopMatrix(); - - /* Help Screen */ - - sprintf(frbuf, - "Frame rate: %0.2f LOD: %d Tot. poly.: %d Poly/sec: %.1f", - fr, LODbias, totpoly, totpoly * fr); - - glDisable(GL_TEXTURE_2D); - glDisable(GL_FOG); - glShadeModel(GL_FLAT); - glDisable(GL_DEPTH_TEST); - - glMatrixMode(GL_PROJECTION); - glPushMatrix(); - glLoadIdentity(); - glOrtho(-0.5, 639.5, -0.5, 479.5, -1.0, 1.0); - - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - - glColor3f(1.0, 0.0, 0.0); - glRasterPos2i(10, 10); - printstring(GLUT_BITMAP_HELVETICA_18, frbuf); - glRasterPos2i(350, 470); - printstring(GLUT_BITMAP_HELVETICA_10, - "IperS V1.0 Written by David Bucciarelli (tech.hmw@plus.it)"); - - if (help) - printhelp(); - - glMatrixMode(GL_PROJECTION); - glPopMatrix(); - glMatrixMode(GL_MODELVIEW); - - glutSwapBuffers(); - - Frames++; - { - GLint t = glutGet(GLUT_ELAPSED_TIME); - if (t - T0 >= 2000) { - GLfloat seconds = (t - T0) / 1000.0; - fr = Frames / seconds; - T0 = t; - Frames = 0; - } - } -} - -int -main(int ac, char **av) -{ - float fogcolor[4] = { 0.7, 0.7, 0.7, 1.0 }; - - fprintf(stderr, - "IperS V1.0\nWritten by David Bucciarelli (tech.hmw@plus.it)\n"); - - glutInitWindowSize(WIDTH, HEIGHT); - glutInit(&ac, av); - - glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE); - - if (!(win = glutCreateWindow("IperS"))) { - fprintf(stderr, "Error, couldn't open window\n"); - exit(-1); - } - - reshape(WIDTH, HEIGHT); - - glShadeModel(GL_SMOOTH); - glEnable(GL_DEPTH_TEST); - glEnable(GL_CULL_FACE); - glEnable(GL_TEXTURE_2D); - - glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - - glEnable(GL_FOG); - glFogi(GL_FOG_MODE, GL_EXP2); - glFogfv(GL_FOG_COLOR, fogcolor); - - glFogf(GL_FOG_DENSITY, 0.006); - - glHint(GL_FOG_HINT, GL_NICEST); - - inittextures(); - initdlists(); - initlight(); - - glClearColor(fogcolor[0], fogcolor[1], fogcolor[2], fogcolor[3]); - glClear(GL_COLOR_BUFFER_BIT); - - calcposobs(); - - glutReshapeFunc(reshape); - glutDisplayFunc(draw); - glutKeyboardFunc(key); - glutSpecialFunc(special); - glutIdleFunc(draw); - - glutMainLoop(); - cleanup(); - - return 0; -} |