static cairo_int_status_t
_draw_trap (cairo_gl_context_t *ctx,
cairo_gl_composite_t *setup,
cairo_trapezoid_t *trap)
{
cairo_point_t quad[4];
quad[0].x = _cairo_edge_compute_intersection_x_for_y (&trap->left.p1,
&trap->left.p2,
trap->top);
quad[0].y = trap->top;
quad[1].x = _cairo_edge_compute_intersection_x_for_y (&trap->left.p1,
&trap->left.p2,
trap->bottom);
quad[1].y = trap->bottom;
quad[2].x = _cairo_edge_compute_intersection_x_for_y (&trap->right.p1,
&trap->right.p2,
trap->bottom);
quad[2].y = trap->bottom;
quad[3].x = _cairo_edge_compute_intersection_x_for_y (&trap->right.p1,
&trap->right.p2,
trap->top);
quad[3].y = trap->top;
return _cairo_gl_composite_emit_quad_as_tristrip (ctx, setup, quad);
}
static cairo_status_t
_stroke_shaper_add_quad (void *closure,
const cairo_point_t quad[4])
{
struct _tristrip_composite_info *info = closure;
return _cairo_gl_composite_emit_quad_as_tristrip (info->ctx, &info->setup,
quad);
}
static cairo_int_status_t
_draw_int_rect (cairo_gl_context_t *ctx,
cairo_gl_composite_t *setup,
cairo_rectangle_int_t *rect)
{
cairo_box_t box;
cairo_point_t quad[4];
_cairo_box_from_rectangle (&box, rect);
quad[0].x = box.p1.x;
quad[0].y = box.p1.y;
quad[1].x = box.p1.x;
quad[1].y = box.p2.y;
quad[2].x = box.p2.x;
quad[2].y = box.p2.y;
quad[3].x = box.p2.x;
quad[3].y = box.p1.y;
return _cairo_gl_composite_emit_quad_as_tristrip (ctx, setup, quad);
}
static cairo_int_status_t
_cairo_gl_msaa_compositor_draw_quad (cairo_gl_context_t *ctx,
cairo_gl_composite_t *setup,
cairo_box_t *box)
{
cairo_point_t quad[4];
quad[0].x = box->p1.x;
quad[0].y = box->p1.y;
quad[1].x = box->p1.x;
quad[1].y = box->p2.y;
quad[2].x = box->p2.x;
quad[2].y = box->p2.y;
quad[3].x = box->p2.x;
quad[3].y = box->p1.y;
return _cairo_gl_composite_emit_quad_as_tristrip (ctx, setup, quad);
}
