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clutter/cogl: Use graphene to progress matrices

Browse Source 
https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1439
This commit is contained in:
Georges Basile Stavracas Neto 2020-09-09 20:12:09 -03:00
parent f61377bb5e
commit 8fc3d296b6
1 changed files with 7 additions and 56 deletions
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63
clutter/clutter/clutter-cogl.c
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@ -37,65 +37,16 @@ cogl_matrix_progress (const GValue *a,
{
const CoglMatrix *matrix1 = g_value_get_boxed (a);
const CoglMatrix *matrix2 = g_value_get_boxed (b);
graphene_point3d_t scale1 = GRAPHENE_POINT3D_INIT (1.f, 1.f, 1.f);
float shear1[3] = { 0.f, 0.f, 0.f };
graphene_point3d_t rotate1 = GRAPHENE_POINT3D_INIT_ZERO;
graphene_point3d_t translate1 = GRAPHENE_POINT3D_INIT_ZERO;
graphene_vec4_t perspective1;
graphene_point3d_t scale2 = GRAPHENE_POINT3D_INIT (1.f, 1.f, 1.f);
float shear2[3] = { 0.f, 0.f, 0.f };
graphene_point3d_t rotate2 = GRAPHENE_POINT3D_INIT_ZERO;
graphene_point3d_t translate2 = GRAPHENE_POINT3D_INIT_ZERO;
graphene_vec4_t perspective2;
graphene_point3d_t scale_res = GRAPHENE_POINT3D_INIT (1.f, 1.f, 1.f);
float shear_res = 0.f;
graphene_point3d_t rotate_res = GRAPHENE_POINT3D_INIT_ZERO;
graphene_point3d_t translate_res = GRAPHENE_POINT3D_INIT_ZERO;
graphene_vec4_t perspective_res;
graphene_matrix_t m1, m2, interpolated;
CoglMatrix res;
float v[16];
cogl_matrix_init_identity (&res);
graphene_matrix_init_from_float (&m1, cogl_matrix_get_array (matrix1));
graphene_matrix_init_from_float (&m2, cogl_matrix_get_array (matrix2));
graphene_matrix_interpolate (&m1, &m2, progress, &interpolated);
graphene_matrix_to_float (&interpolated, v);
_clutter_util_matrix_decompose (matrix1,
&scale1, shear1, &rotate1, &translate1,
&perspective1);
_clutter_util_matrix_decompose (matrix2,
&scale2, shear2, &rotate2, &translate2,
&perspective2);
/* perspective */
graphene_vec4_interpolate (&perspective1, &perspective2, progress, &perspective_res);
res.wx = graphene_vec4_get_x (&perspective_res);
res.wy = graphene_vec4_get_y (&perspective_res);
res.wz = graphene_vec4_get_z (&perspective_res);
res.ww = graphene_vec4_get_w (&perspective_res);
/* translation */
graphene_point3d_interpolate (&translate1, &translate2, progress, &translate_res);
cogl_matrix_translate (&res, translate_res.x, translate_res.y, translate_res.z);
/* rotation */
graphene_point3d_interpolate (&rotate1, &rotate2, progress, &rotate_res);
cogl_matrix_rotate (&res, rotate_res.x, 1.0f, 0.0f, 0.0f);
cogl_matrix_rotate (&res, rotate_res.y, 0.0f, 1.0f, 0.0f);
cogl_matrix_rotate (&res, rotate_res.z, 0.0f, 0.0f, 1.0f);
/* skew */
shear_res = shear1[2] + (shear2[2] - shear1[2]) * progress; /* YZ */
if (shear_res != 0.f)
cogl_matrix_skew_yz (&res, shear_res);
shear_res = shear1[1] + (shear2[1] - shear1[1]) * progress; /* XZ */
if (shear_res != 0.f)
cogl_matrix_skew_xz (&res, shear_res);
shear_res = shear1[0] + (shear2[0] - shear1[0]) * progress; /* XY */
if (shear_res != 0.f)
cogl_matrix_skew_xy (&res, shear_res);
/* scale */
graphene_point3d_interpolate (&scale1, &scale2, progress, &scale_res);
cogl_matrix_scale (&res, scale_res.x, scale_res.y, scale_res.z);
cogl_matrix_init_from_array (&res, v);
g_value_set_boxed (retval, &res);