void fixmatrix()
{
int x;
GLfloat temp[4*4];
fixmodel();
fixview();
fixprojection();
for(x=0;x<16;x++)temp[x] = modelmatrix[x];
matrixmultiply(temp, viewmatrix);
matrixmultiply(temp, projmatrix);
GLint pvmmatrix = glGetUniformLocation(programHandle, "modelviewproj");
glUniformMatrix4fv(pvmmatrix, 1, GL_FALSE, temp);
}
void main()
{
int a;char str;
printf("--------------WELCOME TO MATRIX CALCULATION--------------\n");
printf("::::1.Calulate Addition or Subtraction of matrix::::::::\n");
printf("::::2.Calculate Determinant of matrix::::\n");
printf("::::3.Calculate Inverse of a matrix::::::\n");
printf("::::4.Calculate Multiplication of matrix:\n");
printf("::::5.Calculate Transpose of matrix::::::\n");
printf("Enter any choices from 1 to 5::\t");
scanf("%d",&a);
switch (a)
{
case 1:
matrixaddsub();
break;
case 2:
determinant_input();
break;
case 3:
inverse();
break;
case 4:
matrixmultiply();
break;
case 5:
transpose_input();
break;
default:
printf("Invalid choice\n");
printf("Do you want to Re-enter.\n");
printf("Press Y to continue or Press N to exit.\t");
scanf("%c",&str);
if (str=='y'||str=='Y')
{
main();
}
break;
}
}
int
main(int argc, char *argv[])
{
float32 **a, **ainv, **ii;
int i, j;
a = (float32 **)ckd_calloc_2d(3, 3, sizeof(float32));
ainv = (float32 **)ckd_calloc_2d(3, 3, sizeof(float32));
ii = (float32 **)ckd_calloc_2d(3, 3, sizeof(float32));
memcpy(a[0], foo, sizeof(float32) * 3 * 3);
printf("%d\n", invert(ainv, a, 3));
/* Should see:
0.75 -0.25 -0.25
-0.25 0.75 -0.25
-0.25 -0.25 0.75
*/
for (i = 0; i < 3; ++i) {
for (j = 0; j < 3; ++j) {
printf("%.2f ", ainv[i][j]);
}
printf("\n");
}
/* Should see:
1.00 0.00 0.00
0.00 1.00 0.00
0.00 0.00 1.00
*/
matrixmultiply(ii, ainv, a, 3);
for (i = 0; i < 3; ++i) {
for (j = 0; j < 3; ++j) {
printf("%.2f ", ii[i][j]);
}
printf("\n");
}
memcpy(a[0], bar, sizeof(float32) * 3 * 3);
printf("%d\n", invert(ainv, a, 3));
/* Should see:
*/
for (i = 0; i < 3; ++i) {
for (j = 0; j < 3; ++j) {
printf("%.2f ", ainv[i][j]);
}
printf("\n");
}
/* Should see:
1.00 0.00 0.00
0.00 1.00 0.00
0.00 0.00 1.00
*/
memset(ii[0], 0, sizeof(float32) * 3 * 3);
matrixmultiply(ii, ainv, a, 3);
for (i = 0; i < 3; ++i) {
for (j = 0; j < 3; ++j) {
printf("%.2f ", ii[i][j]);
}
printf("\n");
}
/* Should see:
-1
*/
a[0][0] = 1.0;
printf("%d\n", invert(ainv, a, 3));
memcpy(a[0], foo, sizeof(float32) * 3 * 3);
printf("%d\n", invert(a, a, 3));
/* Should see:
0.75 -0.25 -0.25
-0.25 0.75 -0.25
-0.25 -0.25 0.75
*/
for (i = 0; i < 3; ++i) {
for (j = 0; j < 3; ++j) {
printf("%.2f ", a[i][j]);
}
printf("\n");
}
ckd_free_2d((void **)a);
ckd_free_2d((void **)ainv);
ckd_free_2d((void **)ii);
return 0;
}
