-static void
-setup_fs_constant_buffer(struct xorg_renderer *r)
-{
- const int param_bytes = 4 * sizeof(float);
- const float fs_consts[8] = {
- 0, 0, 0, 1,
- };
- renderer_set_constants(r, PIPE_SHADER_FRAGMENT,
- fs_consts, param_bytes);
-}
-
-static INLINE void shift_rectx(float coords[4],
- const float *bounds,
- const float shift)
-{
- coords[0] += shift;
- coords[2] -= shift;
- if (bounds) {
- coords[2] = MIN2(coords[2], bounds[2]);
- /* bound x/y + width/height */
- if ((coords[0] + coords[2]) > (bounds[0] + bounds[2])) {
- coords[2] = (bounds[0] + bounds[2]) - coords[0];
- }
- }
-}
-
-static INLINE void shift_recty(float coords[4],
- const float *bounds,
- const float shift)
-{
- coords[1] += shift;
- coords[3] -= shift;
- if (bounds) {
- coords[3] = MIN2(coords[3], bounds[3]);
- if ((coords[1] + coords[3]) > (bounds[1] + bounds[3])) {
- coords[3] = (bounds[1] + bounds[3]) - coords[1];
- }
- }
-}
-
-static INLINE void bound_rect(float coords[4],
- const float bounds[4],
- float shift[4])
-{
- /* if outside the bounds */
- if (coords[0] > (bounds[0] + bounds[2]) ||
- coords[1] > (bounds[1] + bounds[3]) ||
- (coords[0] + coords[2]) < bounds[0] ||
- (coords[1] + coords[3]) < bounds[1]) {
- coords[0] = 0.f;
- coords[1] = 0.f;
- coords[2] = 0.f;
- coords[3] = 0.f;
- shift[0] = 0.f;
- shift[1] = 0.f;
- return;
- }
-
- /* bound x */
- if (coords[0] < bounds[0]) {
- shift[0] = bounds[0] - coords[0];
- coords[2] -= shift[0];
- coords[0] = bounds[0];
- } else
- shift[0] = 0.f;
-
- /* bound y */
- if (coords[1] < bounds[1]) {
- shift[1] = bounds[1] - coords[1];
- coords[3] -= shift[1];
- coords[1] = bounds[1];
- } else
- shift[1] = 0.f;
-
- shift[2] = bounds[2] - coords[2];
- shift[3] = bounds[3] - coords[3];
- /* bound width/height */
- coords[2] = MIN2(coords[2], bounds[2]);
- coords[3] = MIN2(coords[3], bounds[3]);
-
- /* bound x/y + width/height */
- if ((coords[0] + coords[2]) > (bounds[0] + bounds[2])) {
- coords[2] = (bounds[0] + bounds[2]) - coords[0];
- }
- if ((coords[1] + coords[3]) > (bounds[1] + bounds[3])) {
- coords[3] = (bounds[1] + bounds[3]) - coords[1];
- }
-
- /* if outside the bounds */
- if ((coords[0] + coords[2]) < bounds[0] ||
- (coords[1] + coords[3]) < bounds[1]) {
- coords[0] = 0.f;
- coords[1] = 0.f;
- coords[2] = 0.f;
- coords[3] = 0.f;
- return;
- }
-}
-
-static INLINE void sync_size(float *src_loc, float *dst_loc)
-{
- src_loc[2] = MIN2(src_loc[2], dst_loc[2]);
- src_loc[3] = MIN2(src_loc[3], dst_loc[3]);
- dst_loc[2] = src_loc[2];
- dst_loc[3] = src_loc[3];
-}
-
-static void renderer_copy_texture(struct xorg_renderer *r,
- struct pipe_texture *src,
- float sx1, float sy1,
- float sx2, float sy2,
- struct pipe_texture *dst,
- float dx1, float dy1,
- float dx2, float dy2)