diff options
Diffstat (limited to 'nx-X11/extras/Mesa_6.4.2/progs/tests/arbvptorus.c')
| -rw-r--r-- | nx-X11/extras/Mesa_6.4.2/progs/tests/arbvptorus.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa_6.4.2/progs/tests/arbvptorus.c b/nx-X11/extras/Mesa_6.4.2/progs/tests/arbvptorus.c new file mode 100644 index 000000000..c1e2d0b76 --- /dev/null +++ b/nx-X11/extras/Mesa_6.4.2/progs/tests/arbvptorus.c @@ -0,0 +1,191 @@ +/* + * A lit, rotating torus via vertex program + */ + +#include <assert.h> +#include <string.h> +#include <stdio.h> +#include <stdlib.h> +#include <math.h> +#define GL_GLEXT_PROTOTYPES +#include <GL/glut.h> + +static float Xrot = 0.0, Yrot = 0.0, Zrot = 0.0; +static GLboolean Anim = GL_TRUE; + + +static void Idle( void ) +{ + Xrot += .3; + Yrot += .4; + Zrot += .2; + glutPostRedisplay(); +} + + +static void Display( void ) +{ + glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); + + glPushMatrix(); + glRotatef(Xrot, 1, 0, 0); + glRotatef(Yrot, 0, 1, 0); + glRotatef(Zrot, 0, 0, 1); + glutSolidTorus(0.75, 2.0, 10, 20); + glPopMatrix(); + + glutSwapBuffers(); +} + + +static void Reshape( int width, int height ) +{ + glViewport( 0, 0, width, height ); + glMatrixMode( GL_PROJECTION ); + glLoadIdentity(); + glFrustum( -2.0, 2.0, -2.0, 2.0, 5.0, 25.0 ); + glMatrixMode( GL_MODELVIEW ); + glLoadIdentity(); + glTranslatef( 0.0, 0.0, -12.0 ); +} + + +static void Key( unsigned char key, int x, int y ) +{ + (void) x; + (void) y; + switch (key) { + case ' ': + Xrot = Yrot = Zrot = 0; + break; + case 'a': + Anim = !Anim; + if (Anim) + glutIdleFunc(Idle); + else + glutIdleFunc(NULL); + break; + case 'z': + Zrot -= 5.0; + break; + case 'Z': + Zrot += 5.0; + break; + case 27: + exit(0); + break; + } + glutPostRedisplay(); +} + + +static void SpecialKey( int key, int x, int y ) +{ + const GLfloat step = 3.0; + (void) x; + (void) y; + switch (key) { + case GLUT_KEY_UP: + Xrot -= step; + break; + case GLUT_KEY_DOWN: + Xrot += step; + break; + case GLUT_KEY_LEFT: + Yrot -= step; + break; + case GLUT_KEY_RIGHT: + Yrot += step; + break; + } + glutPostRedisplay(); +} + + +static void Init( void ) +{ + GLint errno; + GLuint prognum; + + /* borrowed from an nvidia demo: + * c[0..3] = modelview matrix + * c[4..7] = invtrans modelview matrix + * c[32] = light pos + * c[35] = diffuse color + */ + static const char prog[] = + "!!ARBvp1.0\n" + "TEMP R0, R1; \n" + "#Simple transform and diffuse lighting\n" + "# object x MVP -> clip\n" + "DP4 result.position.x, state.matrix.mvp.row[0], vertex.position ;\n" + "DP4 result.position.y, state.matrix.mvp.row[1], vertex.position ;\n" + "DP4 result.position.z, state.matrix.mvp.row[2], vertex.position ;\n" + "DP4 result.position.w, state.matrix.mvp.row[3], vertex.position ;\n" + + "# normal x MV-1T -> lighting normal\n" + "DP3 R1.x, state.matrix.modelview.invtrans.row[0], vertex.normal ;\n" + "DP3 R1.y, state.matrix.modelview.invtrans.row[1], vertex.normal;\n" + "DP3 R1.z, state.matrix.modelview.invtrans.row[2], vertex.normal;\n" + + "DP3 R0, program.local[32], R1; # L.N\n" +#if 0 + "MUL result.color.xyz, R0, program.local[35] ; # col = L.N * diffuse\n" +#else + "MUL result.color.primary.xyz, R0, program.local[35] ; # col = L.N * diffuse\n" +#endif + "MOV result.texcoord, vertex.texcoord;\n" + "END"; + + if (!glutExtensionSupported("GL_ARB_vertex_program")) { + printf("Sorry, this program requires GL_ARB_vertex_program"); + exit(1); + } + + + glGenProgramsARB(1, &prognum); + + glBindProgramARB(GL_VERTEX_PROGRAM_ARB, prognum); + glProgramStringARB(GL_VERTEX_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, + strlen(prog), (const GLubyte *) prog); + + assert(glIsProgramARB(prognum)); + errno = glGetError(); + printf("glGetError = %d\n", errno); + if (errno != GL_NO_ERROR) + { + GLint errorpos; + + glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errorpos); + printf("errorpos: %d\n", errorpos); + printf("%s\n", (char *)glGetString(GL_PROGRAM_ERROR_STRING_ARB)); + } + + /* Light position */ + glProgramLocalParameter4fARB(GL_VERTEX_PROGRAM_ARB, 32, 2, 2, 4, 1); + /* Diffuse material color */ + glProgramLocalParameter4fARB(GL_VERTEX_PROGRAM_ARB, 35, 0.25, 0, 0.25, 1); + + glEnable(GL_VERTEX_PROGRAM_ARB); + glEnable(GL_DEPTH_TEST); + glClearColor(0.3, 0.3, 0.3, 1); +} + + +int main( int argc, char *argv[] ) +{ + glutInit( &argc, argv ); + glutInitWindowPosition( 0, 0 ); + glutInitWindowSize( 250, 250 ); + glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH ); + glutCreateWindow(argv[0]); + glutReshapeFunc( Reshape ); + glutKeyboardFunc( Key ); + glutSpecialFunc( SpecialKey ); + glutDisplayFunc( Display ); + if (Anim) + glutIdleFunc(Idle); + Init(); + glutMainLoop(); + return 0; +} |