//-----------------------------memory_inputs--------------------------------
const MachOper* MachNode::memory_inputs(Node* &base, Node* &index) const {
const MachOper* oper = memory_operand();
if (oper == (MachOper*)-1) {
base = NodeSentinel;
index = NodeSentinel;
} else {
base = NULL;
index = NULL;
if (oper != NULL) {
// It has a unique memory operand. Find its index.
int oper_idx = num_opnds();
while (--oper_idx >= 0) {
if (_opnds[oper_idx] == oper) break;
}
int oper_pos = operand_index(oper_idx);
int base_pos = oper->base_position();
if (base_pos >= 0) {
base = _in[oper_pos+base_pos];
}
int index_pos = oper->index_position();
if (index_pos >= 0) {
index = _in[oper_pos+index_pos];
}
}
}
return oper;
}
static inline int operand_xindex(twin_operand_t *o)
{
int ind = operand_index(o);
return ind != TWIN_RGB16 ? ind : TWIN_ARGB32;
}
/* XXX Fixme: source clipping is busted
*/
static void _twin_composite_simple (twin_pixmap_t *dst,
twin_coord_t dst_x,
twin_coord_t dst_y,
twin_operand_t *src,
twin_coord_t src_x,
twin_coord_t src_y,
twin_operand_t *msk,
twin_coord_t msk_x,
twin_coord_t msk_y,
twin_operator_t operator,
twin_coord_t width,
twin_coord_t height)
{
twin_coord_t iy;
twin_coord_t left, top, right, bottom;
twin_coord_t sdx, sdy;
twin_source_u s;
dst_x += dst->origin_x;
dst_y += dst->origin_y;
left = dst_x;
top = dst_y;
right = dst_x + width;
bottom = dst_y + height;
/* clip */
if (left < dst->clip.left)
left = dst->clip.left;
if (top < dst->clip.top)
top = dst->clip.top;
if (right > dst->clip.right)
right = dst->clip.right;
if (bottom > dst->clip.bottom)
bottom = dst->clip.bottom;
if (left >= right || top >= bottom)
return;
if (src->source_kind == TWIN_PIXMAP) {
src_x += src->u.pixmap->origin_x;
src_y += src->u.pixmap->origin_y;
} else
s.c = src->u.argb;
sdx = src_x - dst_x;
sdy = src_y - dst_y;
if (msk) {
twin_src_msk_op op;
twin_source_u m;
twin_coord_t mdx, mdy;
if (msk->source_kind == TWIN_PIXMAP) {
msk_x += msk->u.pixmap->origin_x;
msk_y += msk->u.pixmap->origin_y;
} else
m.c = msk->u.argb;
mdx = msk_x - dst_x;
mdy = msk_y - dst_y;
op = comp3[operator][operand_index(src)][operand_index(msk)][dst->format];
for (iy = top; iy < bottom; iy++)
{
if (src->source_kind == TWIN_PIXMAP)
s.p = twin_pixmap_pointer (src->u.pixmap, left+sdx, iy+sdy);
if (msk->source_kind == TWIN_PIXMAP)
m.p = twin_pixmap_pointer (msk->u.pixmap, left+mdx, iy+mdy);
(*op) (twin_pixmap_pointer (dst, left, iy), s, m, right - left);
}
}
else
{
twin_src_op op;
op = comp2[operator][operand_index(src)][dst->format];
for (iy = top; iy < bottom; iy++)
{
if (src->source_kind == TWIN_PIXMAP)
s.p = twin_pixmap_pointer (src->u.pixmap, left+sdx, iy+sdy);
(*op) (twin_pixmap_pointer (dst, left, iy), s, right - left);
}
}
twin_pixmap_damage (dst, left, top, right, bottom);
}