static struct brw_fp_src get_pixel_w( struct brw_wm_compile *c )
{
if (src_is_undef(c->fp_pixel_w)) {
struct brw_fp_dst pixel_w = get_temp(c);
struct brw_fp_src deltas = get_delta_xy(c);
/* XXX: assuming position is always first -- valid?
*/
struct brw_fp_src interp_wpos = src_reg(BRW_FILE_PAYLOAD, 0);
/* deltas.xyw = DELTAS2 deltas.xy, payload.interp_wpos.x
*/
emit_op3(c,
WM_PIXELW,
dst_mask(pixel_w, BRW_WRITEMASK_W),
interp_wpos,
deltas,
src_undef());
c->fp_pixel_w = src_reg_from_dst(pixel_w);
}
return c->fp_pixel_w;
}
static struct prog_src_register get_pixel_xy( struct brw_wm_compile *c )
{
if (src_is_undef(c->pixel_xy)) {
struct prog_dst_register pixel_xy = get_temp(c);
struct prog_src_register payload_r0_depth = src_reg(PROGRAM_PAYLOAD, PAYLOAD_DEPTH);
/* Emit the out calculations, and hold onto the results. Use
* two instructions as a temporary is required.
*/
/* pixel_xy.xy = PIXELXY payload[0];
*/
emit_op(c,
WM_PIXELXY,
dst_mask(pixel_xy, WRITEMASK_XY),
0,
payload_r0_depth,
src_undef(),
src_undef());
c->pixel_xy = src_reg_from_dst(pixel_xy);
}
return c->pixel_xy;
}
static struct brw_fp_src get_delta_xy( struct brw_wm_compile *c )
{
if (src_is_undef(c->fp_delta_xy)) {
struct brw_fp_dst delta_xy = get_temp(c);
struct brw_fp_src pixel_xy = get_pixel_xy(c);
struct brw_fp_src payload_r0_depth = src_reg(BRW_FILE_PAYLOAD, PAYLOAD_DEPTH);
/* deltas.xy = DELTAXY pixel_xy, payload[0]
*/
emit_op3(c,
WM_DELTAXY,
dst_mask(delta_xy, BRW_WRITEMASK_XY),
pixel_xy,
payload_r0_depth,
src_undef());
c->fp_delta_xy = src_reg_from_dst(delta_xy);
}
return c->fp_delta_xy;
}
static struct brw_fp_src get_pixel_xy( struct brw_wm_compile *c )
{
if (src_is_undef(c->fp_pixel_xy)) {
struct brw_fp_dst pixel_xy = get_temp(c);
struct brw_fp_src payload_r0_depth = src_reg(BRW_FILE_PAYLOAD, PAYLOAD_DEPTH);
/* Emit the out calculations, and hold onto the results. Use
* two instructions as a temporary is required.
*/
/* pixel_xy.xy = PIXELXY payload[0];
*/
emit_op1(c,
WM_PIXELXY,
dst_mask(pixel_xy, BRW_WRITEMASK_XY),
payload_r0_depth);
c->fp_pixel_xy = src_reg_from_dst(pixel_xy);
}
return c->fp_pixel_xy;
}
static struct prog_src_register get_delta_xy( struct brw_wm_compile *c )
{
if (src_is_undef(c->delta_xy)) {
struct prog_dst_register delta_xy = get_temp(c);
struct prog_src_register pixel_xy = get_pixel_xy(c);
struct prog_src_register payload_r0_depth = src_reg(PROGRAM_PAYLOAD, PAYLOAD_DEPTH);
/* deltas.xy = DELTAXY pixel_xy, payload[0]
*/
emit_op(c,
WM_DELTAXY,
dst_mask(delta_xy, WRITEMASK_XY),
0,
pixel_xy,
payload_r0_depth,
src_undef());
c->delta_xy = src_reg_from_dst(delta_xy);
}
return c->delta_xy;
}
static struct prog_src_register get_pixel_w( struct brw_wm_compile *c )
{
if (src_is_undef(c->pixel_w)) {
struct prog_dst_register pixel_w = get_temp(c);
struct prog_src_register deltas = get_delta_xy(c);
struct prog_src_register interp_wpos = src_reg(PROGRAM_PAYLOAD, FRAG_ATTRIB_WPOS);
/* deltas.xyw = DELTAS2 deltas.xy, payload.interp_wpos.x
*/
emit_op(c,
WM_PIXELW,
dst_mask(pixel_w, WRITEMASK_W),
0,
interp_wpos,
deltas,
src_undef());
c->pixel_w = src_reg_from_dst(pixel_w);
}
return c->pixel_w;
}
