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clutter_actor_project_point/vertices

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This commit is contained in:
Tomas Frydrych 2007-06-12 11:42:29 +00:00
parent f72e754876
commit 1a6069bdee
3 changed files with 99 additions and 2 deletions
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9
cogl.h
View File

@ -189,6 +189,15 @@ cogl_alpha_func (COGLenum func,
ClutterFeatureFlags
cogl_get_features ();
void
cogl_get_modelview_matrix (ClutterFixed m[16]);
void
cogl_get_projection_matrix (ClutterFixed m[16]);
void
cogl_get_viewport (ClutterFixed v[4]);
G_END_DECLS
#endif /* __COGL_H__ */

74
gl/cogl.c
View File

@ -506,7 +506,7 @@ cogl_perspective (ClutterAngle fovy,
M(2,2) = CLUTTER_FIXED_TO_FLOAT (c);
M(2,3) = CLUTTER_FIXED_TO_FLOAT (d);
M(3,2) = -1.0F;
GE( glMultMatrixf (m) );
#undef M
}
@ -533,7 +533,6 @@ cogl_setup_viewport (guint width,
/* camera distance from screen, 0.5 * tan (FOV) */
#define DEFAULT_Z_CAMERA 0.866025404f
z_camera = CLUTTER_FIXED_TO_FLOAT (clutter_tani (fovy) >> 1);
GE( glTranslatef (-0.5f, -0.5f, -z_camera) );
@ -585,3 +584,74 @@ cogl_get_features ()
return flags;
}
void
cogl_get_modelview_matrix (ClutterFixed m[16])
{
GLdouble md[16];
glGetDoublev(GL_MODELVIEW_MATRIX, &md[0]);
#define M(m,row,col) m[col*4+row]
M(m,0,0) = CLUTTER_FLOAT_TO_FIXED (M(md,0,0));
M(m,0,1) = CLUTTER_FLOAT_TO_FIXED (M(md,0,1));
M(m,0,2) = CLUTTER_FLOAT_TO_FIXED (M(md,0,2));
M(m,0,3) = CLUTTER_FLOAT_TO_FIXED (M(md,0,3));
M(m,1,0) = CLUTTER_FLOAT_TO_FIXED (M(md,1,0));
M(m,1,1) = CLUTTER_FLOAT_TO_FIXED (M(md,1,1));
M(m,1,2) = CLUTTER_FLOAT_TO_FIXED (M(md,1,2));
M(m,1,3) = CLUTTER_FLOAT_TO_FIXED (M(md,1,3));
M(m,2,0) = CLUTTER_FLOAT_TO_FIXED (M(md,2,0));
M(m,2,1) = CLUTTER_FLOAT_TO_FIXED (M(md,2,1));
M(m,2,2) = CLUTTER_FLOAT_TO_FIXED (M(md,2,2));
M(m,2,3) = CLUTTER_FLOAT_TO_FIXED (M(md,2,3));
M(m,3,0) = CLUTTER_FLOAT_TO_FIXED (M(md,3,0));
M(m,3,1) = CLUTTER_FLOAT_TO_FIXED (M(md,3,1));
M(m,3,2) = CLUTTER_FLOAT_TO_FIXED (M(md,3,2));
M(m,3,3) = CLUTTER_FLOAT_TO_FIXED (M(md,3,3));
#undef M
}
void
cogl_get_projection_matrix (ClutterFixed m[16])
{
GLdouble md[16];
glGetDoublev(GL_PROJECTION_MATRIX, &md[0]);
#define M(m,row,col) m[col*4+row]
M(m,0,0) = CLUTTER_FLOAT_TO_FIXED (M(md,0,0));
M(m,0,1) = CLUTTER_FLOAT_TO_FIXED (M(md,0,1));
M(m,0,2) = CLUTTER_FLOAT_TO_FIXED (M(md,0,2));
M(m,0,3) = CLUTTER_FLOAT_TO_FIXED (M(md,0,3));
M(m,1,0) = CLUTTER_FLOAT_TO_FIXED (M(md,1,0));
M(m,1,1) = CLUTTER_FLOAT_TO_FIXED (M(md,1,1));
M(m,1,2) = CLUTTER_FLOAT_TO_FIXED (M(md,1,2));
M(m,1,3) = CLUTTER_FLOAT_TO_FIXED (M(md,1,3));
M(m,2,0) = CLUTTER_FLOAT_TO_FIXED (M(md,2,0));
M(m,2,1) = CLUTTER_FLOAT_TO_FIXED (M(md,2,1));
M(m,2,2) = CLUTTER_FLOAT_TO_FIXED (M(md,2,2));
M(m,2,3) = CLUTTER_FLOAT_TO_FIXED (M(md,2,3));
M(m,3,0) = CLUTTER_FLOAT_TO_FIXED (M(md,3,0));
M(m,3,1) = CLUTTER_FLOAT_TO_FIXED (M(md,3,1));
M(m,3,2) = CLUTTER_FLOAT_TO_FIXED (M(md,3,2));
M(m,3,3) = CLUTTER_FLOAT_TO_FIXED (M(md,3,3));
#undef M
}
void
cogl_get_viewport (ClutterFixed v[4])
{
GLdouble vd[4];
glGetDoublev(GL_VIEWPORT, &vd[0]);
v[0] = CLUTTER_FLOAT_TO_FIXED (vd[0]);
v[1] = CLUTTER_FLOAT_TO_FIXED (vd[1]);
v[2] = CLUTTER_FLOAT_TO_FIXED (vd[2]);
v[3] = CLUTTER_FLOAT_TO_FIXED (vd[3]);
}

18
gles/cogl.c
View File

@ -533,3 +533,21 @@ cogl_get_features ()
/* Suck */
return 0;
}
void
cogl_get_modelview_matrix (ClutterFixed m[16])
{
glGetFixedv(GL_MODELVIEW_MATRIX, &m[0]);
}
void
cogl_get_projection_matrix (ClutterFixed m[16])
{
glGetFixedv(GL_PROJECTION_MATRIX, &m[0]);
}
void
cogl_get_viewport (ClutterFixed v[4])
{
glGetFixedv(GL_VIEWPORT, &v[0]);
}