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TINYGL: Done several optimizations to the maths code.

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This commit is contained in:
Stefano Musumeci 2014-06-07 00:55:08 +02:00
parent 9be1423802
commit 4fbb2d0dc3
9 changed files with 333 additions and 254 deletions
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21
graphics/tinygl/matrix.cpp
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@ -172,26 +172,25 @@ void glopRotate(GLContext *c, GLParam *p) {
void glopScale(GLContext *c, GLParam *p) {
float x = p[1].f, y = p[2].f, z = p[3].f;
Matrix4 m = Matrix4::identity();
Matrix4 *m = c->matrix_stack_ptr[c->matrix_mode];
m.set(0, 0, x);
m.set(1, 1, y);
m.set(2, 2, z);
*c->matrix_stack_ptr[c->matrix_mode] *= m;
m->set(0, 0, m->get(0, 0) * x); m->set(0, 1, m->get(0, 1) * y); m->set(0, 2, m->get(0, 2) * z);
m->set(1, 0, m->get(1, 0) * x); m->set(1, 1, m->get(1, 1) * y); m->set(1, 2, m->get(1, 2) * z);
m->set(2, 0, m->get(2, 0) * x); m->set(2, 1, m->get(2, 1) * y); m->set(2, 2, m->get(2, 2) * z);
m->set(3, 0, m->get(3, 0) * x); m->set(3, 1, m->get(3, 1) * y); m->set(3, 2, m->get(3, 2) * z);
gl_matrix_update(c);
}
void glopTranslate(GLContext *c, GLParam *p) {
Matrix4 m = Matrix4::identity();
float x = p[1].f, y = p[2].f, z = p[3].f;
m.set(0, 3, x);
m.set(1, 3, y);
m.set(2, 3, z);
Matrix4 *m = c->matrix_stack_ptr[c->matrix_mode];
*c->matrix_stack_ptr[c->matrix_mode] *= m;
m->set(0, 3, m->get(0,0) * x + m->get(0,1) * y + m->get(0,2) * z + m->get(0,3));
m->set(1, 3, m->get(1,0) * x + m->get(1,1) * y + m->get(1,2) * z + m->get(1,3));
m->set(2, 3, m->get(2,0) * x + m->get(2,1) * y + m->get(2,2) * z + m->get(2,3));
m->set(3, 3, m->get(3,0) * x + m->get(3,1) * y + m->get(3,2) * z + m->get(3,3));
gl_matrix_update(c);
}