diff options
Diffstat (limited to 'cogl/cogl/cogl-matrix.c')
| -rw-r--r-- | cogl/cogl/cogl-matrix.c | 249 |
1 files changed, 0 insertions, 249 deletions
diff --git a/cogl/cogl/cogl-matrix.c b/cogl/cogl/cogl-matrix.c index 987493f92..81ec4970d 100644 --- a/cogl/cogl/cogl-matrix.c +++ b/cogl/cogl/cogl-matrix.c @@ -387,255 +387,6 @@ cogl_matrix_get_value (const CoglMatrix *matrix, return graphene_matrix_get_value (matrix, column, row); } -void -cogl_matrix_transform_point (const CoglMatrix *matrix, - float *x, - float *y, - float *z, - float *w) -{ - graphene_vec4_t p; - - graphene_vec4_init (&p, *x, *y, *z, *w); - graphene_matrix_transform_vec4 (matrix, &p, &p); - - *x = graphene_vec4_get_x (&p); - *y = graphene_vec4_get_y (&p); - *z = graphene_vec4_get_z (&p); - *w = graphene_vec4_get_w (&p); -} - -typedef struct _Point2f -{ - float x; - float y; -} Point2f; - -typedef struct _Point3f -{ - float x; - float y; - float z; -} Point3f; - -typedef struct _Point4f -{ - float x; - float y; - float z; - float w; -} Point4f; - -static void -init_matrix_rows (const CoglMatrix *matrix, - unsigned int n_rows, - graphene_vec4_t *rows) -{ - graphene_matrix_t m; - unsigned int i; - - graphene_matrix_transpose (matrix, &m); - - for (i = 0; i < n_rows; i++) - graphene_matrix_get_row (&m, i, &rows[i]); -} - -static void -_cogl_matrix_transform_points_f2 (const CoglMatrix *matrix, - size_t stride_in, - const void *points_in, - size_t stride_out, - void *points_out, - int n_points) -{ - graphene_vec4_t rows[3]; - int i; - - init_matrix_rows (matrix, G_N_ELEMENTS (rows), rows); - - for (i = 0; i < n_points; i++) - { - Point2f p = *(Point2f *)((uint8_t *)points_in + i * stride_in); - Point3f *o = (Point3f *)((uint8_t *)points_out + i * stride_out); - graphene_vec4_t point; - - graphene_vec4_init (&point, p.x, p.y, 0.f, 1.f); - - o->x = graphene_vec4_dot (&rows[0], &point); - o->y = graphene_vec4_dot (&rows[1], &point); - o->z = graphene_vec4_dot (&rows[2], &point); - } -} - -static void -_cogl_matrix_project_points_f2 (const CoglMatrix *matrix, - size_t stride_in, - const void *points_in, - size_t stride_out, - void *points_out, - int n_points) -{ - graphene_vec4_t rows[4]; - int i; - - init_matrix_rows (matrix, G_N_ELEMENTS (rows), rows); - - for (i = 0; i < n_points; i++) - { - Point2f p = *(Point2f *)((uint8_t *)points_in + i * stride_in); - Point4f *o = (Point4f *)((uint8_t *)points_out + i * stride_out); - graphene_vec4_t point; - - graphene_vec4_init (&point, p.x, p.y, 0.f, 1.f); - - o->x = graphene_vec4_dot (&rows[0], &point); - o->y = graphene_vec4_dot (&rows[1], &point); - o->z = graphene_vec4_dot (&rows[2], &point); - o->w = graphene_vec4_dot (&rows[3], &point); - } -} - -static void -_cogl_matrix_transform_points_f3 (const CoglMatrix *matrix, - size_t stride_in, - const void *points_in, - size_t stride_out, - void *points_out, - int n_points) -{ - graphene_vec4_t rows[3]; - int i; - - init_matrix_rows (matrix, G_N_ELEMENTS (rows), rows); - - for (i = 0; i < n_points; i++) - { - Point3f p = *(Point3f *)((uint8_t *)points_in + i * stride_in); - Point3f *o = (Point3f *)((uint8_t *)points_out + i * stride_out); - graphene_vec4_t point; - - graphene_vec4_init (&point, p.x, p.y, p.z, 1.f); - - o->x = graphene_vec4_dot (&rows[0], &point); - o->y = graphene_vec4_dot (&rows[1], &point); - o->z = graphene_vec4_dot (&rows[2], &point); - } -} - -static void -_cogl_matrix_project_points_f3 (const CoglMatrix *matrix, - size_t stride_in, - const void *points_in, - size_t stride_out, - void *points_out, - int n_points) -{ - graphene_vec4_t rows[4]; - int i; - - init_matrix_rows (matrix, G_N_ELEMENTS (rows), rows); - - for (i = 0; i < n_points; i++) - { - Point3f p = *(Point3f *)((uint8_t *)points_in + i * stride_in); - Point4f *o = (Point4f *)((uint8_t *)points_out + i * stride_out); - graphene_vec4_t point; - - graphene_vec4_init (&point, p.x, p.y, p.z, 1.f); - - o->x = graphene_vec4_dot (&rows[0], &point); - o->y = graphene_vec4_dot (&rows[1], &point); - o->z = graphene_vec4_dot (&rows[2], &point); - o->w = graphene_vec4_dot (&rows[3], &point); - } -} - -static void -_cogl_matrix_project_points_f4 (const CoglMatrix *matrix, - size_t stride_in, - const void *points_in, - size_t stride_out, - void *points_out, - int n_points) -{ - graphene_vec4_t rows[4]; - int i; - - init_matrix_rows (matrix, G_N_ELEMENTS (rows), rows); - - for (i = 0; i < n_points; i++) - { - Point4f p = *(Point4f *)((uint8_t *)points_in + i * stride_in); - Point4f *o = (Point4f *)((uint8_t *)points_out + i * stride_out); - graphene_vec4_t point; - - graphene_vec4_init (&point, p.x, p.y, p.z, p.w); - - o->x = graphene_vec4_dot (&rows[0], &point); - o->y = graphene_vec4_dot (&rows[1], &point); - o->z = graphene_vec4_dot (&rows[2], &point); - o->w = graphene_vec4_dot (&rows[3], &point); - } -} - -void -cogl_matrix_transform_points (const CoglMatrix *matrix, - int n_components, - size_t stride_in, - const void *points_in, - size_t stride_out, - void *points_out, - int n_points) -{ - /* The results of transforming always have three components... */ - g_return_if_fail (stride_out >= sizeof (Point3f)); - - if (n_components == 2) - _cogl_matrix_transform_points_f2 (matrix, - stride_in, points_in, - stride_out, points_out, - n_points); - else - { - g_return_if_fail (n_components == 3); - - _cogl_matrix_transform_points_f3 (matrix, - stride_in, points_in, - stride_out, points_out, - n_points); - } -} - -void -cogl_matrix_project_points (const CoglMatrix *matrix, - int n_components, - size_t stride_in, - const void *points_in, - size_t stride_out, - void *points_out, - int n_points) -{ - if (n_components == 2) - _cogl_matrix_project_points_f2 (matrix, - stride_in, points_in, - stride_out, points_out, - n_points); - else if (n_components == 3) - _cogl_matrix_project_points_f3 (matrix, - stride_in, points_in, - stride_out, points_out, - n_points); - else - { - g_return_if_fail (n_components == 4); - - _cogl_matrix_project_points_f4 (matrix, - stride_in, points_in, - stride_out, points_out, - n_points); - } -} - gboolean cogl_matrix_is_identity (const CoglMatrix *matrix) { |