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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/bounce.c | |
parent | e4f4489e3fc0b36d72821b55794fb843b2b7fa5f (diff) | |
download | external_mesa3d-68fc4b415e322f6744299e39864fbc377c6eff74.zip external_mesa3d-68fc4b415e322f6744299e39864fbc377c6eff74.tar.gz external_mesa3d-68fc4b415e322f6744299e39864fbc377c6eff74.tar.bz2 |
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/bounce.c')
-rw-r--r-- | progs/demos/bounce.c | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/progs/demos/bounce.c b/progs/demos/bounce.c deleted file mode 100644 index a9a291e..0000000 --- a/progs/demos/bounce.c +++ /dev/null @@ -1,224 +0,0 @@ - -/* - * Bouncing ball demo. - * - * This program is in the public domain - * - * Brian Paul - * - * Conversion to GLUT by Mark J. Kilgard - */ - - -#include <math.h> -#include <stdlib.h> -#include <string.h> -#include <GL/glut.h> - -#define COS(X) cos( (X) * 3.14159/180.0 ) -#define SIN(X) sin( (X) * 3.14159/180.0 ) - -#define RED 1 -#define WHITE 2 -#define CYAN 3 - -GLboolean IndexMode = GL_FALSE; -GLuint Ball; -GLenum Mode; -GLfloat Zrot = 0.0, Zstep = 180.0; -GLfloat Xpos = 0.0, Ypos = 1.0; -GLfloat Xvel = 2.0, Yvel = 0.0; -GLfloat Xmin = -4.0, Xmax = 4.0; -GLfloat Ymin = -3.8, Ymax = 4.0; -GLfloat G = -9.8; - -static GLuint -make_ball(void) -{ - GLuint list; - GLfloat a, b; - GLfloat da = 18.0, db = 18.0; - GLfloat radius = 1.0; - GLuint color; - GLfloat x, y, z; - - list = glGenLists(1); - - glNewList(list, GL_COMPILE); - - color = 0; - for (a = -90.0; a + da <= 90.0; a += da) { - - glBegin(GL_QUAD_STRIP); - for (b = 0.0; b <= 360.0; b += db) { - - if (color) { - glIndexi(RED); - glColor3f(1, 0, 0); - } else { - glIndexi(WHITE); - glColor3f(1, 1, 1); - } - - x = radius * COS(b) * COS(a); - y = radius * SIN(b) * COS(a); - z = radius * SIN(a); - glVertex3f(x, y, z); - - x = radius * COS(b) * COS(a + da); - y = radius * SIN(b) * COS(a + da); - z = radius * SIN(a + da); - glVertex3f(x, y, z); - - color = 1 - color; - } - glEnd(); - - } - - glEndList(); - - return list; -} - -static void -reshape(int width, int height) -{ - float aspect = (float) width / (float) height; - glViewport(0, 0, (GLint) width, (GLint) height); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - glOrtho(-6.0 * aspect, 6.0 * aspect, -6.0, 6.0, -6.0, 6.0); - glMatrixMode(GL_MODELVIEW); -} - -/* ARGSUSED1 */ -static void -key(unsigned char k, int x, int y) -{ - switch (k) { - case 27: /* Escape */ - exit(0); - } -} - -static void -draw(void) -{ - GLint i; - - glClear(GL_COLOR_BUFFER_BIT); - - glIndexi(CYAN); - glColor3f(0, 1, 1); - glBegin(GL_LINES); - for (i = -5; i <= 5; i++) { - glVertex2i(i, -5); - glVertex2i(i, 5); - } - for (i = -5; i <= 5; i++) { - glVertex2i(-5, i); - glVertex2i(5, i); - } - for (i = -5; i <= 5; i++) { - glVertex2i(i, -5); - glVertex2f(i * 1.15, -5.9); - } - glVertex2f(-5.3, -5.35); - glVertex2f(5.3, -5.35); - glVertex2f(-5.75, -5.9); - glVertex2f(5.75, -5.9); - glEnd(); - - glPushMatrix(); - glTranslatef(Xpos, Ypos, 0.0); - glScalef(2.0, 2.0, 2.0); - glRotatef(8.0, 0.0, 0.0, 1.0); - glRotatef(90.0, 1.0, 0.0, 0.0); - glRotatef(Zrot, 0.0, 0.0, 1.0); - - glCallList(Ball); - - glPopMatrix(); - - glFlush(); - glutSwapBuffers(); -} - -static void -idle(void) -{ - static float vel0 = -100.0; - static double t0 = -1.; - double t, dt; - t = glutGet(GLUT_ELAPSED_TIME) / 1000.; - if (t0 < 0.) - t0 = t; - dt = t - t0; - t0 = t; - - Zrot += Zstep*dt; - - Xpos += Xvel*dt; - if (Xpos >= Xmax) { - Xpos = Xmax; - Xvel = -Xvel; - Zstep = -Zstep; - } - if (Xpos <= Xmin) { - Xpos = Xmin; - Xvel = -Xvel; - Zstep = -Zstep; - } - Ypos += Yvel*dt; - Yvel += G*dt; - if (Ypos < Ymin) { - Ypos = Ymin; - if (vel0 == -100.0) - vel0 = fabs(Yvel); - Yvel = vel0; - } - glutPostRedisplay(); -} - -static void -visible(int vis) -{ - if (vis == GLUT_VISIBLE) - glutIdleFunc(idle); - else - glutIdleFunc(NULL); -} - -int main(int argc, char *argv[]) -{ - glutInitWindowSize(600, 450); - glutInit(&argc, argv); - - IndexMode = argc > 1 && strcmp(argv[1], "-ci") == 0; - if (IndexMode) - glutInitDisplayMode(GLUT_INDEX | GLUT_DOUBLE); - else - glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE); - - glutCreateWindow("Bounce"); - Ball = make_ball(); - glCullFace(GL_BACK); - glEnable(GL_CULL_FACE); - glDisable(GL_DITHER); - glShadeModel(GL_FLAT); - - glutDisplayFunc(draw); - glutReshapeFunc(reshape); - glutVisibilityFunc(visible); - glutKeyboardFunc(key); - - if (IndexMode) { - glutSetColor(RED, 1.0, 0.0, 0.0); - glutSetColor(WHITE, 1.0, 1.0, 1.0); - glutSetColor(CYAN, 0.0, 1.0, 1.0); - } - - glutMainLoop(); - return 0; /* ANSI C requires main to return int. */ -} |