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authorAxel Davy <[email protected]>2016-02-21 16:30:15 +0100
committerAxel Davy <[email protected]>2016-02-29 18:55:58 +0100
commitf08c990af53e91114257b19e5679e2dbbc277e45 (patch)
treeff8092617d1edfa0a0621bfc6644c2e3b176c634
parentf1d12e7392896f45a76df87b6ad0bf18647922df (diff)
st/nine: Introduce helper for Position shader input
Cc: "11.2" <[email protected]> Signed-off-by: Axel Davy <[email protected]>
-rw-r--r--src/gallium/state_trackers/nine/nine_shader.c31
1 files changed, 15 insertions, 16 deletions
diff --git a/src/gallium/state_trackers/nine/nine_shader.c b/src/gallium/state_trackers/nine/nine_shader.c
index a7a7da27903..f0c5236fd75 100644
--- a/src/gallium/state_trackers/nine/nine_shader.c
+++ b/src/gallium/state_trackers/nine/nine_shader.c
@@ -830,6 +830,18 @@ nine_ureg_dst_register(unsigned file, int index)
return ureg_dst(ureg_src_register(file, index));
}
+static inline struct ureg_src
+nine_get_position_input(struct shader_translator *tx)
+{
+ struct ureg_program *ureg = tx->ureg;
+
+ if (tx->wpos_is_sysval)
+ return ureg_DECL_system_value(ureg, TGSI_SEMANTIC_POSITION, 0);
+ else
+ return ureg_DECL_fs_input(ureg, TGSI_SEMANTIC_POSITION,
+ 0, TGSI_INTERPOLATE_LINEAR);
+}
+
static struct ureg_src
tx_src_param(struct shader_translator *tx, const struct sm1_src_param *param)
{
@@ -955,16 +967,8 @@ tx_src_param(struct shader_translator *tx, const struct sm1_src_param *param)
case D3DSPR_MISCTYPE:
switch (param->idx) {
case D3DSMO_POSITION:
- if (ureg_src_is_undef(tx->regs.vPos)) {
- if (tx->wpos_is_sysval) {
- tx->regs.vPos =
- ureg_DECL_system_value(ureg, TGSI_SEMANTIC_POSITION, 0);
- } else {
- tx->regs.vPos =
- ureg_DECL_fs_input(ureg, TGSI_SEMANTIC_POSITION, 0,
- TGSI_INTERPOLATE_LINEAR);
- }
- }
+ if (ureg_src_is_undef(tx->regs.vPos))
+ tx->regs.vPos = nine_get_position_input(tx);
if (tx->shift_wpos) {
/* TODO: do this only once */
struct ureg_dst wpos = tx_scratch(tx);
@@ -3269,12 +3273,7 @@ shader_add_ps_fog_stage(struct shader_translator *tx, struct ureg_src src_col)
}
if (tx->info->fog_mode != D3DFOG_NONE) {
- if (tx->wpos_is_sysval) {
- depth = ureg_DECL_system_value(ureg, TGSI_SEMANTIC_POSITION, 0);
- } else {
- depth = ureg_DECL_fs_input(ureg, TGSI_SEMANTIC_POSITION, 0,
- TGSI_INTERPOLATE_LINEAR);
- }
+ depth = nine_get_position_input(tx);
depth = ureg_scalar(depth, TGSI_SWIZZLE_Z);
}