static void
slide_frame(struct weston_surface_animation *animation)
{
float scale;
scale = animation->start +
(animation->stop - animation->start) *
animation->spring.current;
weston_matrix_init(&animation->transform.matrix);
weston_matrix_translate(&animation->transform.matrix, 0, scale, 0);
}
static void
zoom_frame(struct weston_surface_animation *animation)
{
struct weston_surface *es = animation->surface;
float scale;
scale = animation->start +
(animation->stop - animation->start) *
animation->spring.current;
weston_matrix_init(&animation->transform.matrix);
weston_matrix_translate(&animation->transform.matrix,
-0.5f * es->geometry.width,
-0.5f * es->geometry.height, 0);
weston_matrix_scale(&animation->transform.matrix, scale, scale, scale);
weston_matrix_translate(&animation->transform.matrix,
0.5f * es->geometry.width,
0.5f * es->geometry.height, 0);
es->alpha = animation->spring.current;
if (es->alpha > 1.0)
es->alpha = 1.0;
}
static void
pixman_renderer_compute_transform(pixman_transform_t *transform_out,
struct weston_view *ev,
struct weston_output *output)
{
struct weston_matrix matrix;
/* Set up the source transformation based on the surface
position, the output position/transform/scale and the client
specified buffer transform/scale */
matrix = output->inverse_matrix;
if (ev->transform.enabled) {
weston_matrix_multiply(&matrix, &ev->transform.inverse);
} else {
weston_matrix_translate(&matrix,
-ev->geometry.x, -ev->geometry.y, 0);
}
weston_matrix_multiply(&matrix, &ev->surface->surface_to_buffer_matrix);
weston_matrix_to_pixman_transform(transform_out, &matrix);
}
void Transform::translate(float x, float y, float z)
{
weston_matrix_translate(&m_transform.matrix, x, y, z);
}
