--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/freeglut/progs/test-shapes-gles1/test-shapes-gles1.c	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,341 @@
+/*! \file    shapes.c
+    \ingroup demos
+
+    This program is a test harness for the various shapes
+    in OpenGLUT.  It may also be useful to see which
+    parameters control what behavior in the OpenGLUT
+    objects.
+ 
+    Spinning wireframe and solid-shaded shapes are
+    displayed.  Some parameters can be adjusted.
+ 
+   Keys:
+      -    <tt>Esc &nbsp;</tt> Quit
+      -    <tt>q Q &nbsp;</tt> Quit
+      -    <tt>i I &nbsp;</tt> Show info
+      -    <tt>p P &nbsp;</tt> Toggle perspective or orthographic projection
+      -    <tt>= + &nbsp;</tt> Increase \a slices
+      -    <tt>- _ &nbsp;</tt> Decreate \a slices
+      -    <tt>, < &nbsp;</tt> Decreate \a stacks
+      -    <tt>. > &nbsp;</tt> Increase \a stacks
+      -    <tt>9 ( &nbsp;</tt> Decreate \a depth  (Sierpinski Sponge)
+      -    <tt>0 ) &nbsp;</tt> Increase \a depth  (Sierpinski Sponge)
+      -    <tt>up&nbsp; &nbsp;</tt> Increase "outer radius"
+      -    <tt>down&nbsp;</tt> Decrease "outer radius"
+      -    <tt>left&nbsp;</tt> Decrease "inner radius"
+      -    <tt>right</tt> Increase "inner radius"
+      -    <tt>PgUp&nbsp;</tt> Next shape-drawing function
+      -    <tt>PgDn&nbsp;</tt> Prev shape-drawing function
+
+    \author  Written by Nigel Stewart November 2003
+
+    \author  Portions Copyright (C) 2004, the OpenGLUT project contributors. <br>
+             OpenGLUT branched from freeglut in February, 2004.
+ 
+    \image   html openglut_shapes.png OpenGLUT Geometric Shapes Demonstration
+    \include demos/shapes/shapes.c
+*/
+
+#include <GL/freeglut.h>
+#include <GL/freeglut_ext.h>
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifdef _MSC_VER
+/* DUMP MEMORY LEAKS */
+#include <crtdbg.h>
+#endif
+
+/*
+ * This macro is only intended to be used on arrays, of course.
+ */
+#define NUMBEROF(x) ((sizeof(x))/(sizeof(x[0])))
+
+#define glRotated glRotatef
+#define glTranslated glTranslatef
+
+/*
+ * These global variables control which object is drawn,
+ * and how it is drawn.  No object uses all of these
+ * variables.
+ */
+static int function_index;
+static int slices = 16;
+static int stacks = 16;
+static double irad = .25;
+static double orad = 1.0;   /* doubles as size for objects other than Torus */
+static int depth = 4;
+static double offset[ 3 ] = { 0, 0, 0 };
+static GLboolean show_info = GL_TRUE;
+static float ar;
+static GLboolean persProject = GL_TRUE;
+static GLboolean animateXRot = GL_FALSE;
+
+/*
+ * These one-liners draw particular objects, fetching appropriate
+ * information from the above globals.  They are just thin wrappers
+ * for the FreeGLUT objects.
+ */
+static void drawSolidTetrahedron(void)         { glutSolidTetrahedron ();                        }
+static void drawWireTetrahedron(void)          { glutWireTetrahedron ();                         }
+static void drawSolidCube(void)                { glutSolidCube(orad);                            }  /* orad doubles as size input */
+static void drawWireCube(void)                 { glutWireCube(orad);                             }  /* orad doubles as size input */
+static void drawSolidOctahedron(void)          { glutSolidOctahedron ();                         }
+static void drawWireOctahedron(void)           { glutWireOctahedron ();                          }
+static void drawSolidDodecahedron(void)        { glutSolidDodecahedron ();                       }
+static void drawWireDodecahedron(void)         { glutWireDodecahedron ();                        }
+static void drawSolidRhombicDodecahedron(void) { glutSolidRhombicDodecahedron ();                }
+static void drawWireRhombicDodecahedron(void)  { glutWireRhombicDodecahedron ();                 }
+static void drawSolidIcosahedron(void)         { glutSolidIcosahedron ();                        }
+static void drawWireIcosahedron(void)          { glutWireIcosahedron ();                         }
+static void drawSolidSierpinskiSponge(void)    { glutSolidSierpinskiSponge (depth, offset, orad);}  /* orad doubles as size input */
+static void drawWireSierpinskiSponge(void)     { glutWireSierpinskiSponge (depth, offset, orad); }  /* orad doubles as size input */
+static void drawSolidTorus(void)               { glutSolidTorus(irad,orad,slices,stacks);        }
+static void drawWireTorus(void)                { glutWireTorus (irad,orad,slices,stacks);        }
+static void drawSolidSphere(void)              { glutSolidSphere(orad,slices,stacks);            }  /* orad doubles as size input */
+static void drawWireSphere(void)               { glutWireSphere(orad,slices,stacks);             }  /* orad doubles as size input */
+static void drawSolidCone(void)                { glutSolidCone(orad,orad,slices,stacks);         }  /* orad doubles as size input */
+static void drawWireCone(void)                 { glutWireCone(orad,orad,slices,stacks);          }  /* orad doubles as size input */
+static void drawSolidCylinder(void)            { glutSolidCylinder(orad,orad,slices,stacks);     }  /* orad doubles as size input */
+static void drawWireCylinder(void)             { glutWireCylinder(orad,orad,slices,stacks);      }  /* orad doubles as size input */
+static void drawSolidTeapot(void)
+{   glFrontFace(GL_CW);    glutSolidTeapot(orad);   glFrontFace(GL_CCW);    /* orad doubles as size input */}
+static void drawWireTeapot(void)
+{   glFrontFace(GL_CW);    glutWireTeapot(orad);    glFrontFace(GL_CCW);    /* orad doubles as size input */}
+
+/*
+ * This structure defines an entry in our function-table.
+ */
+typedef struct
+{
+    const char * const name;
+    void (*solid) (void);
+    void (*wire)  (void);
+} entry;
+
+#define ENTRY(e) {#e, drawSolid##e, drawWire##e}
+static const entry table [] =
+{
+    ENTRY (Tetrahedron),
+    ENTRY (Cube),
+    ENTRY (Octahedron),
+    ENTRY (Dodecahedron),
+    ENTRY (RhombicDodecahedron),
+    ENTRY (Icosahedron),
+    ENTRY (SierpinskiSponge),
+    ENTRY (Teapot),
+    ENTRY (Torus),
+    ENTRY (Sphere),
+    ENTRY (Cone),
+    ENTRY (Cylinder),
+    /* ENTRY (Cuboctahedron) */
+};
+#undef ENTRY
+
+/*!
+    Does printf()-like work using freeglut
+    glutBitmapString().  Uses a fixed font.  Prints
+    at the indicated row/column position.
+
+    Limitation: Cannot address pixels.
+    Limitation: Renders in screen coords, not model coords.
+*/
+static void shapesPrintf (int row, int col, const char *fmt, ...)
+{
+}
+
+/* GLUT callback Handlers */
+
+static void
+resize(int width, int height)
+{
+    ar = (float) width / (float) height;
+
+    glViewport(0, 0, width, height);
+}
+
+static void display(void)
+{
+    const double t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
+    const double a = t*90.0;
+    const double b = (animateXRot?t:1)*60.0;
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    glFrustumf(-ar, ar, -1.0, 1.0, 2.0, 100.0);
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+    glEnable(GL_LIGHTING);
+
+    glColor4f(1,0,0,1);
+
+    glPushMatrix();
+        glTranslated(0,1.2,-6);
+        glRotated(b,1,0,0);
+        glRotated(a,0,0,1);
+        table [function_index].solid ();
+    glPopMatrix();
+
+    glPushMatrix();
+        glTranslated(0,-1.2,-6);
+        glRotated(b,1,0,0);
+        glRotated(a,0,0,1);
+        table [function_index].wire ();
+    glPopMatrix();
+
+    glDisable(GL_LIGHTING);
+    glColor4f(0.1,0.1,0.4,1.0);
+
+    glutSwapBuffers();
+}
+
+
+static void
+key(unsigned char key, int x, int y)
+{
+    switch (key)
+    {
+    case 27 :
+    case 'Q':
+    case 'q': glutLeaveMainLoop () ;      break;
+
+    case 'I':
+    case 'i': show_info = ( show_info == GL_TRUE ) ? GL_FALSE : GL_TRUE; break;
+
+    case '=':
+    case '+': slices++; printf("%d,%d\n", slices, stacks); break;
+
+    case '-':
+    case '_': if( slices > -1 ) slices--; break;
+
+    case ',':
+    case '<': if( stacks > -1 ) stacks--; break;
+
+    case '.':
+    case '>': stacks++;                   break;
+
+    case '9': 
+    case '(': if( depth > -1 ) depth--;   break;
+
+    case '0': 
+    case ')': ++depth;                    break;
+
+    case 'P':
+    case 'p': persProject=!persProject;   break;
+
+    case 'R':
+    case 'r': animateXRot=!animateXRot;   break;
+
+    default:
+        break;
+    }
+
+    glutPostRedisplay();
+}
+
+static void special (int key, int x, int y)
+{
+    switch (key)
+    {
+    case GLUT_KEY_PAGE_UP:    ++function_index; break;
+    case GLUT_KEY_PAGE_DOWN:  --function_index; break;
+    case GLUT_KEY_UP:         orad *= 2;        break;
+    case GLUT_KEY_DOWN:       orad /= 2;        break;
+
+    case GLUT_KEY_RIGHT:      irad *= 2;        break;
+    case GLUT_KEY_LEFT:       irad /= 2;        break;
+
+    default:
+        break;
+    }
+
+    if (0 > function_index)
+        function_index = NUMBEROF (table) - 1;
+
+    if (NUMBEROF (table) <= ( unsigned )function_index)
+        function_index = 0;
+}
+
+
+static void
+idle(void)
+{
+    glutPostRedisplay();
+}
+
+static void
+onMouseClick(int button, int state, int x, int y) {
+  if (state == GLUT_DOWN)
+    special(GLUT_KEY_PAGE_UP, 0, 0);
+}
+
+const GLfloat light_ambient[]  = { 0.0f, 0.0f, 0.0f, 1.0f };
+const GLfloat light_diffuse[]  = { 1.0f, 1.0f, 1.0f, 1.0f };
+const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
+const GLfloat light_position[] = { 2.0f, 5.0f, 5.0f, 0.0f };
+
+const GLfloat mat_ambient[]    = { 0.7f, 0.7f, 0.7f, 1.0f };
+const GLfloat mat_diffuse[]    = { 0.8f, 0.8f, 0.8f, 1.0f };
+const GLfloat mat_specular[]   = { 1.0f, 1.0f, 1.0f, 1.0f };
+const GLfloat high_shininess[] = { 100.0f };
+
+/* Program entry point */
+
+void init_context() {
+    printf("init_context\n"); fflush(stdout);
+    glClearColor(1,1,1,1);
+    glEnable(GL_CULL_FACE);
+    glCullFace(GL_BACK);
+
+    glEnable(GL_DEPTH_TEST);
+    glDepthFunc(GL_LESS);
+
+    glEnable(GL_LIGHT0);
+    glEnable(GL_NORMALIZE);
+    glEnable(GL_COLOR_MATERIAL);
+
+    glLightfv(GL_LIGHT0, GL_AMBIENT,  light_ambient);
+    glLightfv(GL_LIGHT0, GL_DIFFUSE,  light_diffuse);
+    glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);
+    glLightfv(GL_LIGHT0, GL_POSITION, light_position);
+
+    glMaterialfv(GL_FRONT, GL_AMBIENT,   mat_ambient);
+    glMaterialfv(GL_FRONT, GL_DIFFUSE,   mat_diffuse);
+    glMaterialfv(GL_FRONT, GL_SPECULAR,  mat_specular);
+    glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess);
+}
+
+int
+main(int argc, char *argv[])
+{
+    glutInitWindowSize(640,480);
+    glutInitWindowPosition(40,40);
+    glutInit(&argc, argv);
+    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH | GLUT_MULTISAMPLE);
+
+    glutCreateWindow("FreeGLUT Shapes");
+
+    glutReshapeFunc(resize);
+    glutDisplayFunc(display);
+    glutKeyboardFunc(key);
+    glutSpecialFunc(special);
+    glutIdleFunc(idle);
+    glutMouseFunc(onMouseClick);
+    glutInitContextFunc(init_context);
+
+    glutSetOption ( GLUT_ACTION_ON_WINDOW_CLOSE, GLUT_ACTION_CONTINUE_EXECUTION ) ;
+
+    glutMainLoop();
+
+#ifdef _MSC_VER
+    /* DUMP MEMORY LEAK INFORMATION */
+    _CrtDumpMemoryLeaks () ;
+#endif
+
+    return EXIT_SUCCESS;
+}