summaryrefslogtreecommitdiffstats
path: root/src/gallium/auxiliary/gallivm
diff options
context:
space:
mode:
Diffstat (limited to 'src/gallium/auxiliary/gallivm')
-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_quad.c14
-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_sample.c271
-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_sample.h6
-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c11
-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_tgsi_aos.c21
-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c122
6 files changed, 196 insertions, 249 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_quad.c b/src/gallium/auxiliary/gallivm/lp_bld_quad.c
index 8a0efed655f..1955add8883 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_quad.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_quad.c
@@ -79,14 +79,9 @@ lp_build_ddy(struct lp_build_context *bld,
}
/*
- * To be able to handle multiple quads at once in texture sampling and
- * do lod calculations per quad, it is necessary to get the per-quad
- * derivatives into the lp_build_rho function.
- * For 8-wide vectors the packed derivative values for 3 coords would
- * look like this, this scales to a arbitrary (multiple of 4) vector size:
- * ds1dx ds1dy dt1dx dt1dy ds2dx ds2dy dt2dx dt2dy
+ * Helper for building packed ddx/ddy vector for one coord (scalar per quad
+ * values). The vector will look like this (8-wide):
* dr1dx dr1dy _____ _____ dr2dx dr2dy _____ _____
- * The second vector will be unused for 1d and 2d textures.
*/
LLVMValueRef
lp_build_packed_ddx_ddy_onecoord(struct lp_build_context *bld,
@@ -121,6 +116,11 @@ lp_build_packed_ddx_ddy_onecoord(struct lp_build_context *bld,
}
+/*
+ * Helper for building packed ddx/ddy vector for one coord (scalar per quad
+ * values). The vector will look like this (8-wide):
+ * ds1dx ds1dy dt1dx dt1dy ds2dx ds2dy dt2dx dt2dy
+ */
LLVMValueRef
lp_build_packed_ddx_ddy_twocoord(struct lp_build_context *bld,
LLVMValueRef a, LLVMValueRef b)
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample.c b/src/gallium/auxiliary/gallivm/lp_bld_sample.c
index ef0631c684a..fc8bae70152 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_sample.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_sample.c
@@ -46,6 +46,7 @@
#include "lp_bld_type.h"
#include "lp_bld_logic.h"
#include "lp_bld_pack.h"
+#include "lp_bld_quad.h"
/*
@@ -203,6 +204,9 @@ lp_sampler_static_sampler_state(struct lp_static_sampler_state *state,
static LLVMValueRef
lp_build_rho(struct lp_build_sample_context *bld,
unsigned texture_unit,
+ LLVMValueRef s,
+ LLVMValueRef t,
+ LLVMValueRef r,
const struct lp_derivatives *derivs)
{
struct gallivm_state *gallivm = bld->gallivm;
@@ -211,8 +215,8 @@ lp_build_rho(struct lp_build_sample_context *bld,
struct lp_build_context *float_bld = &bld->float_bld;
struct lp_build_context *coord_bld = &bld->coord_bld;
struct lp_build_context *perquadf_bld = &bld->perquadf_bld;
- const LLVMValueRef *ddx_ddy = derivs->ddx_ddy;
const unsigned dims = bld->dims;
+ LLVMValueRef ddx_ddy[2];
LLVMBuilderRef builder = bld->gallivm->builder;
LLVMTypeRef i32t = LLVMInt32TypeInContext(bld->gallivm->context);
LLVMValueRef index0 = LLVMConstInt(i32t, 0, 0);
@@ -229,59 +233,7 @@ lp_build_rho(struct lp_build_sample_context *bld,
LLVMValueRef i32undef = LLVMGetUndef(LLVMInt32TypeInContext(gallivm->context));
LLVMValueRef rho_xvec, rho_yvec;
- abs_ddx_ddy[0] = lp_build_abs(coord_bld, ddx_ddy[0]);
- if (dims > 2) {
- abs_ddx_ddy[1] = lp_build_abs(coord_bld, ddx_ddy[1]);
- }
- else {
- abs_ddx_ddy[1] = NULL;
- }
-
- if (dims == 1) {
- static const unsigned char swizzle1[] = {
- 0, LP_BLD_SWIZZLE_DONTCARE,
- LP_BLD_SWIZZLE_DONTCARE, LP_BLD_SWIZZLE_DONTCARE
- };
- static const unsigned char swizzle2[] = {
- 1, LP_BLD_SWIZZLE_DONTCARE,
- LP_BLD_SWIZZLE_DONTCARE, LP_BLD_SWIZZLE_DONTCARE
- };
- rho_xvec = lp_build_swizzle_aos(coord_bld, abs_ddx_ddy[0], swizzle1);
- rho_yvec = lp_build_swizzle_aos(coord_bld, abs_ddx_ddy[0], swizzle2);
- }
- else if (dims == 2) {
- static const unsigned char swizzle1[] = {
- 0, 2,
- LP_BLD_SWIZZLE_DONTCARE, LP_BLD_SWIZZLE_DONTCARE
- };
- static const unsigned char swizzle2[] = {
- 1, 3,
- LP_BLD_SWIZZLE_DONTCARE, LP_BLD_SWIZZLE_DONTCARE
- };
- rho_xvec = lp_build_swizzle_aos(coord_bld, abs_ddx_ddy[0], swizzle1);
- rho_yvec = lp_build_swizzle_aos(coord_bld, abs_ddx_ddy[0], swizzle2);
- }
- else {
- LLVMValueRef shuffles1[LP_MAX_VECTOR_LENGTH];
- LLVMValueRef shuffles2[LP_MAX_VECTOR_LENGTH];
- assert(dims == 3);
- for (i = 0; i < num_quads; i++) {
- shuffles1[4*i + 0] = lp_build_const_int32(gallivm, 4*i);
- shuffles1[4*i + 1] = lp_build_const_int32(gallivm, 4*i + 2);
- shuffles1[4*i + 2] = lp_build_const_int32(gallivm, length + 4*i);
- shuffles1[4*i + 3] = i32undef;
- shuffles2[4*i + 0] = lp_build_const_int32(gallivm, 4*i + 1);
- shuffles2[4*i + 1] = lp_build_const_int32(gallivm, 4*i + 3);
- shuffles2[4*i + 2] = lp_build_const_int32(gallivm, length + 4*i + 1);
- shuffles2[4*i + 3] = i32undef;
- }
- rho_xvec = LLVMBuildShuffleVector(builder, abs_ddx_ddy[0], abs_ddx_ddy[1],
- LLVMConstVector(shuffles1, length), "");
- rho_yvec = LLVMBuildShuffleVector(builder, abs_ddx_ddy[0], abs_ddx_ddy[1],
- LLVMConstVector(shuffles2, length), "");
- }
-
- rho_vec = lp_build_max(coord_bld, rho_xvec, rho_yvec);
+ /* Note that all simplified calculations will only work for isotropic filtering */
first_level = bld->dynamic_state->first_level(bld->dynamic_state,
bld->gallivm, texture_unit);
@@ -289,76 +241,176 @@ lp_build_rho(struct lp_build_sample_context *bld,
int_size = lp_build_minify(int_size_bld, bld->int_size, first_level_vec);
float_size = lp_build_int_to_float(float_size_bld, int_size);
- if (bld->coord_type.length > 4) {
- /* expand size to each quad */
+ /* XXX ignoring explicit derivs for cube maps for now */
+ if (derivs && !(bld->static_texture_state->target == PIPE_TEXTURE_CUBE)) {
+ LLVMValueRef ddmax[3];
+ for (i = 0; i < dims; i++) {
+ LLVMValueRef ddx, ddy;
+ LLVMValueRef floatdim;
+ LLVMValueRef indexi = lp_build_const_int32(gallivm, i);
+ ddx = lp_build_abs(coord_bld, derivs->ddx[i]);
+ ddy = lp_build_abs(coord_bld, derivs->ddy[i]);
+ ddmax[i] = lp_build_max(coord_bld, ddx, ddy);
+ floatdim = lp_build_extract_broadcast(gallivm, bld->float_size_in_type,
+ coord_bld->type, float_size, indexi);
+ ddmax[i] = lp_build_mul(coord_bld, floatdim, ddmax[i]);
+ }
+ rho_vec = ddmax[0];
if (dims > 1) {
- /* could use some broadcast_vector helper for this? */
- int num_quads = bld->coord_type.length / 4;
- LLVMValueRef src[LP_MAX_VECTOR_LENGTH/4];
- for (i = 0; i < num_quads; i++) {
- src[i] = float_size;
+ rho_vec = lp_build_max(coord_bld, rho_vec, ddmax[1]);
+ if (dims > 2) {
+ rho_vec = lp_build_max(coord_bld, rho_vec, ddmax[2]);
+ }
+ }
+ /*
+ * rho_vec now still contains per-pixel rho, convert to scalar per quad
+ * since we can't handle per-pixel rho/lod from now on (TODO).
+ */
+ rho = lp_build_pack_aos_scalars(bld->gallivm, coord_bld->type,
+ perquadf_bld->type, rho_vec, 0);
+ }
+ else {
+ /*
+ * This looks all a bit complex, but it's not that bad
+ * (the shuffle code makes it look worse than it is).
+ * Still, might not be ideal for all cases.
+ */
+ if (dims < 2) {
+ ddx_ddy[0] = lp_build_packed_ddx_ddy_onecoord(coord_bld, s);
+ }
+ else if (dims >= 2) {
+ ddx_ddy[0] = lp_build_packed_ddx_ddy_twocoord(coord_bld,
+ s, t);
+ if (dims > 2) {
+ ddx_ddy[1] = lp_build_packed_ddx_ddy_onecoord(coord_bld, r);
}
- float_size = lp_build_concat(bld->gallivm, src, float_size_bld->type, num_quads);
+ }
+
+ abs_ddx_ddy[0] = lp_build_abs(coord_bld, ddx_ddy[0]);
+ if (dims > 2) {
+ abs_ddx_ddy[1] = lp_build_abs(coord_bld, ddx_ddy[1]);
}
else {
- float_size = lp_build_broadcast_scalar(coord_bld, float_size);
+ abs_ddx_ddy[1] = NULL;
}
- rho_vec = lp_build_mul(coord_bld, rho_vec, float_size);
- if (dims <= 1) {
- rho = rho_vec;
+ if (dims == 1) {
+ static const unsigned char swizzle1[] = {
+ 0, LP_BLD_SWIZZLE_DONTCARE,
+ LP_BLD_SWIZZLE_DONTCARE, LP_BLD_SWIZZLE_DONTCARE
+ };
+ static const unsigned char swizzle2[] = {
+ 1, LP_BLD_SWIZZLE_DONTCARE,
+ LP_BLD_SWIZZLE_DONTCARE, LP_BLD_SWIZZLE_DONTCARE
+ };
+ rho_xvec = lp_build_swizzle_aos(coord_bld, abs_ddx_ddy[0], swizzle1);
+ rho_yvec = lp_build_swizzle_aos(coord_bld, abs_ddx_ddy[0], swizzle2);
+ }
+ else if (dims == 2) {
+ static const unsigned char swizzle1[] = {
+ 0, 2,
+ LP_BLD_SWIZZLE_DONTCARE, LP_BLD_SWIZZLE_DONTCARE
+ };
+ static const unsigned char swizzle2[] = {
+ 1, 3,
+ LP_BLD_SWIZZLE_DONTCARE, LP_BLD_SWIZZLE_DONTCARE
+ };
+ rho_xvec = lp_build_swizzle_aos(coord_bld, abs_ddx_ddy[0], swizzle1);
+ rho_yvec = lp_build_swizzle_aos(coord_bld, abs_ddx_ddy[0], swizzle2);
}
else {
- if (dims >= 2) {
- static const unsigned char swizzle1[] = {
- 0, LP_BLD_SWIZZLE_DONTCARE,
- LP_BLD_SWIZZLE_DONTCARE, LP_BLD_SWIZZLE_DONTCARE
- };
- static const unsigned char swizzle2[] = {
- 1, LP_BLD_SWIZZLE_DONTCARE,
- LP_BLD_SWIZZLE_DONTCARE, LP_BLD_SWIZZLE_DONTCARE
- };
- LLVMValueRef rho_s, rho_t, rho_r;
-
- rho_s = lp_build_swizzle_aos(coord_bld, rho_vec, swizzle1);
- rho_t = lp_build_swizzle_aos(coord_bld, rho_vec, swizzle2);
-
- rho = lp_build_max(coord_bld, rho_s, rho_t);
-
- if (dims >= 3) {
- static const unsigned char swizzle3[] = {
- 2, LP_BLD_SWIZZLE_DONTCARE,
+ LLVMValueRef shuffles1[LP_MAX_VECTOR_LENGTH];
+ LLVMValueRef shuffles2[LP_MAX_VECTOR_LENGTH];
+ assert(dims == 3);
+ for (i = 0; i < num_quads; i++) {
+ shuffles1[4*i + 0] = lp_build_const_int32(gallivm, 4*i);
+ shuffles1[4*i + 1] = lp_build_const_int32(gallivm, 4*i + 2);
+ shuffles1[4*i + 2] = lp_build_const_int32(gallivm, length + 4*i);
+ shuffles1[4*i + 3] = i32undef;
+ shuffles2[4*i + 0] = lp_build_const_int32(gallivm, 4*i + 1);
+ shuffles2[4*i + 1] = lp_build_const_int32(gallivm, 4*i + 3);
+ shuffles2[4*i + 2] = lp_build_const_int32(gallivm, length + 4*i + 1);
+ shuffles2[4*i + 3] = i32undef;
+ }
+ rho_xvec = LLVMBuildShuffleVector(builder, abs_ddx_ddy[0], abs_ddx_ddy[1],
+ LLVMConstVector(shuffles1, length), "");
+ rho_yvec = LLVMBuildShuffleVector(builder, abs_ddx_ddy[0], abs_ddx_ddy[1],
+ LLVMConstVector(shuffles2, length), "");
+ }
+
+ rho_vec = lp_build_max(coord_bld, rho_xvec, rho_yvec);
+
+ if (bld->coord_type.length > 4) {
+ /* expand size to each quad */
+ if (dims > 1) {
+ /* could use some broadcast_vector helper for this? */
+ int num_quads = bld->coord_type.length / 4;
+ LLVMValueRef src[LP_MAX_VECTOR_LENGTH/4];
+ for (i = 0; i < num_quads; i++) {
+ src[i] = float_size;
+ }
+ float_size = lp_build_concat(bld->gallivm, src, float_size_bld->type, num_quads);
+ }
+ else {
+ float_size = lp_build_broadcast_scalar(coord_bld, float_size);
+ }
+ rho_vec = lp_build_mul(coord_bld, rho_vec, float_size);
+
+ if (dims <= 1) {
+ rho = rho_vec;
+ }
+ else {
+ if (dims >= 2) {
+ static const unsigned char swizzle1[] = {
+ 0, LP_BLD_SWIZZLE_DONTCARE,
LP_BLD_SWIZZLE_DONTCARE, LP_BLD_SWIZZLE_DONTCARE
};
- rho_r = lp_build_swizzle_aos(coord_bld, rho_vec, swizzle3);
- rho = lp_build_max(coord_bld, rho, rho_r);
+ static const unsigned char swizzle2[] = {
+ 1, LP_BLD_SWIZZLE_DONTCARE,
+ LP_BLD_SWIZZLE_DONTCARE, LP_BLD_SWIZZLE_DONTCARE
+ };
+ LLVMValueRef rho_s, rho_t, rho_r;
+
+ rho_s = lp_build_swizzle_aos(coord_bld, rho_vec, swizzle1);
+ rho_t = lp_build_swizzle_aos(coord_bld, rho_vec, swizzle2);
+
+ rho = lp_build_max(coord_bld, rho_s, rho_t);
+
+ if (dims >= 3) {
+ static const unsigned char swizzle3[] = {
+ 2, LP_BLD_SWIZZLE_DONTCARE,
+ LP_BLD_SWIZZLE_DONTCARE, LP_BLD_SWIZZLE_DONTCARE
+ };
+ rho_r = lp_build_swizzle_aos(coord_bld, rho_vec, swizzle3);
+ rho = lp_build_max(coord_bld, rho, rho_r);
+ }
}
}
- }
- rho = lp_build_pack_aos_scalars(bld->gallivm, coord_bld->type,
- perquadf_bld->type, rho, 0);
- }
- else {
- if (dims <= 1) {
- rho_vec = LLVMBuildExtractElement(builder, rho_vec, index0, "");
- }
- rho_vec = lp_build_mul(float_size_bld, rho_vec, float_size);
-
- if (dims <= 1) {
- rho = rho_vec;
+ rho = lp_build_pack_aos_scalars(bld->gallivm, coord_bld->type,
+ perquadf_bld->type, rho, 0);
}
else {
- if (dims >= 2) {
- LLVMValueRef rho_s, rho_t, rho_r;
+ if (dims <= 1) {
+ rho_vec = LLVMBuildExtractElement(builder, rho_vec, index0, "");
+ }
+ rho_vec = lp_build_mul(float_size_bld, rho_vec, float_size);
+
+ if (dims <= 1) {
+ rho = rho_vec;
+ }
+ else {
+ if (dims >= 2) {
+ LLVMValueRef rho_s, rho_t, rho_r;
- rho_s = LLVMBuildExtractElement(builder, rho_vec, index0, "");
- rho_t = LLVMBuildExtractElement(builder, rho_vec, index1, "");
+ rho_s = LLVMBuildExtractElement(builder, rho_vec, index0, "");
+ rho_t = LLVMBuildExtractElement(builder, rho_vec, index1, "");
- rho = lp_build_max(float_bld, rho_s, rho_t);
+ rho = lp_build_max(float_bld, rho_s, rho_t);
- if (dims >= 3) {
- rho_r = LLVMBuildExtractElement(builder, rho_vec, index2, "");
- rho = lp_build_max(float_bld, rho, rho_r);
+ if (dims >= 3) {
+ rho_r = LLVMBuildExtractElement(builder, rho_vec, index2, "");
+ rho = lp_build_max(float_bld, rho, rho_r);
+ }
}
}
}
@@ -511,6 +563,9 @@ void
lp_build_lod_selector(struct lp_build_sample_context *bld,
unsigned texture_unit,
unsigned sampler_unit,
+ LLVMValueRef s,
+ LLVMValueRef t,
+ LLVMValueRef r,
const struct lp_derivatives *derivs,
LLVMValueRef lod_bias, /* optional */
LLVMValueRef explicit_lod, /* optional */
@@ -544,7 +599,7 @@ lp_build_lod_selector(struct lp_build_sample_context *bld,
else {
LLVMValueRef rho;
- rho = lp_build_rho(bld, texture_unit, derivs);
+ rho = lp_build_rho(bld, texture_unit, s, t, r, derivs);
/*
* Compute lod = log2(rho)
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample.h b/src/gallium/auxiliary/gallivm/lp_bld_sample.h
index 63064550ee6..1abe0ca414e 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_sample.h
+++ b/src/gallium/auxiliary/gallivm/lp_bld_sample.h
@@ -56,7 +56,8 @@ struct lp_build_context;
*/
struct lp_derivatives
{
- LLVMValueRef ddx_ddy[2];
+ LLVMValueRef ddx[3];
+ LLVMValueRef ddy[3];
};
@@ -366,6 +367,9 @@ void
lp_build_lod_selector(struct lp_build_sample_context *bld,
unsigned texture_index,
unsigned sampler_index,
+ LLVMValueRef s,
+ LLVMValueRef t,
+ LLVMValueRef r,
const struct lp_derivatives *derivs,
LLVMValueRef lod_bias, /* optional */
LLVMValueRef explicit_lod, /* optional */
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
index 8aa41662d67..cdd910fabcf 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
@@ -1077,7 +1077,7 @@ lp_build_sample_common(struct lp_build_sample_context *bld,
LLVMValueRef *s,
LLVMValueRef *t,
LLVMValueRef *r,
- const struct lp_derivatives *derivs,
+ const struct lp_derivatives *derivs, /* optional */
LLVMValueRef lod_bias, /* optional */
LLVMValueRef explicit_lod, /* optional */
LLVMValueRef *lod_ipart,
@@ -1090,7 +1090,6 @@ lp_build_sample_common(struct lp_build_sample_context *bld,
const unsigned mag_filter = bld->static_sampler_state->mag_img_filter;
const unsigned target = bld->static_texture_state->target;
LLVMValueRef first_level;
- struct lp_derivatives face_derivs;
/*
printf("%s mip %d min %d mag %d\n", __FUNCTION__,
@@ -1107,11 +1106,6 @@ lp_build_sample_common(struct lp_build_sample_context *bld,
*t = face_t; /* vec */
/* use 'r' to indicate cube face */
*r = face; /* vec */
-
- /* recompute ddx, ddy using the new (s,t) face texcoords */
- face_derivs.ddx_ddy[0] = lp_build_packed_ddx_ddy_twocoord(&bld->coord_bld, *s, *t);
- face_derivs.ddx_ddy[1] = NULL;
- derivs = &face_derivs;
}
else if (target == PIPE_TEXTURE_1D_ARRAY) {
*r = lp_build_iround(&bld->coord_bld, *t);
@@ -1131,6 +1125,7 @@ lp_build_sample_common(struct lp_build_sample_context *bld,
* distinguish between minification/magnification with one mipmap level.
*/
lp_build_lod_selector(bld, texture_index, sampler_index,
+ *s, *t, *r,
derivs, lod_bias, explicit_lod,
mip_filter,
lod_ipart, lod_fpart);
@@ -1479,7 +1474,7 @@ lp_build_sample_soa(struct gallivm_state *gallivm,
unsigned sampler_index,
const LLVMValueRef *coords,
const LLVMValueRef *offsets,
- const struct lp_derivatives *derivs,
+ const struct lp_derivatives *derivs, /* optional */
LLVMValueRef lod_bias, /* optional */
LLVMValueRef explicit_lod, /* optional */
LLVMValueRef texel_out[4])
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_aos.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_aos.c
index 9a30cc80296..98bce0eb269 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_aos.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_aos.c
@@ -363,7 +363,7 @@ emit_tex(struct lp_build_tgsi_aos_context *bld,
unsigned target;
unsigned unit;
LLVMValueRef coords;
- struct lp_derivatives derivs;
+ struct lp_derivatives derivs = { {NULL}, {NULL} };
if (!bld->sampler) {
_debug_printf("warning: found texture instruction but no sampler generator supplied\n");
@@ -374,22 +374,15 @@ emit_tex(struct lp_build_tgsi_aos_context *bld,
coords = lp_build_emit_fetch( &bld->bld_base, inst, 0 , LP_CHAN_ALL);
- if (0 && modifier == LP_BLD_TEX_MODIFIER_EXPLICIT_DERIV) {
- lp_build_emit_fetch( &bld->bld_base, inst, 1 , LP_CHAN_ALL);
- lp_build_emit_fetch( &bld->bld_base, inst, 2 , LP_CHAN_ALL);
+ if (modifier == LP_BLD_TEX_MODIFIER_EXPLICIT_DERIV) {
+ /* probably not going to work */
+ derivs.ddx[0] = lp_build_emit_fetch( &bld->bld_base, inst, 1 , LP_CHAN_ALL);
+ derivs.ddy[0] = lp_build_emit_fetch( &bld->bld_base, inst, 2 , LP_CHAN_ALL);
unit = inst->Src[3].Register.Index;
- } else {
-#if 0
- ddx = lp_build_ddx( &bld->bld_base.base, coords );
- ddy = lp_build_ddy( &bld->bld_base.base, coords );
-#else
- /* TODO */
- derivs.ddx_ddy[0] = bld->bld_base.base.one;
- derivs.ddx_ddy[1] = bld->bld_base.base.one;
-#endif
+ }
+ else {
unit = inst->Src[1].Register.Index;
}
-
return bld->sampler->emit_fetch_texel(bld->sampler,
&bld->bld_base.base,
target, unit,
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
index 69957fe7bb9..9fe87c40b63 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
@@ -1164,14 +1164,13 @@ emit_tex( struct lp_build_tgsi_soa_context *bld,
enum lp_build_tex_modifier modifier,
LLVMValueRef *texel)
{
- LLVMBuilderRef builder = bld->bld_base.base.gallivm->builder;
- struct gallivm_state *gallivm = bld->bld_base.base.gallivm;
unsigned unit;
LLVMValueRef lod_bias, explicit_lod;
LLVMValueRef oow = NULL;
LLVMValueRef coords[4];
LLVMValueRef offsets[3] = { NULL };
struct lp_derivatives derivs;
+ struct lp_derivatives *deriv_ptr = NULL;
unsigned num_coords;
unsigned dims;
unsigned i;
@@ -1184,9 +1183,6 @@ emit_tex( struct lp_build_tgsi_soa_context *bld,
return;
}
- derivs.ddx_ddy[0] = bld->bld_base.base.undef;
- derivs.ddx_ddy[1] = bld->bld_base.base.undef;
-
switch (inst->Texture.Texture) {
case TGSI_TEXTURE_1D:
num_coords = 1;
@@ -1259,58 +1255,14 @@ emit_tex( struct lp_build_tgsi_soa_context *bld,
}
if (modifier == LP_BLD_TEX_MODIFIER_EXPLICIT_DERIV) {
- LLVMValueRef i32undef = LLVMGetUndef(LLVMInt32TypeInContext(gallivm->context));
- LLVMValueRef shuffles[LP_MAX_VECTOR_LENGTH];
- LLVMValueRef ddxdyonec[3];
- unsigned length = bld->bld_base.base.type.length;
- unsigned num_quads = length / 4;
unsigned dim;
- unsigned quad;
-
for (dim = 0; dim < dims; ++dim) {
- LLVMValueRef srcx = lp_build_emit_fetch( &bld->bld_base, inst, 1, dim );
- LLVMValueRef srcy = lp_build_emit_fetch( &bld->bld_base, inst, 2, dim );
- for (quad = 0; quad < num_quads; ++quad) {
- unsigned s1 = 4*quad;
- unsigned s2 = 4*quad + length;
- shuffles[4*quad + 0] = lp_build_const_int32(gallivm, s1);
- shuffles[4*quad + 1] = lp_build_const_int32(gallivm, s2);
- shuffles[4*quad + 2] = i32undef;
- shuffles[4*quad + 3] = i32undef;
- }
- ddxdyonec[dim] = LLVMBuildShuffleVector(builder, srcx, srcy,
- LLVMConstVector(shuffles, length), "");
- }
- if (dims == 1) {
- derivs.ddx_ddy[0] = ddxdyonec[0];
- }
- else if (dims >= 2) {
- for (quad = 0; quad < num_quads; ++quad) {
- unsigned s1 = 4*quad;
- unsigned s2 = 4*quad + length;
- shuffles[4*quad + 0] = lp_build_const_int32(gallivm, s1);
- shuffles[4*quad + 1] = lp_build_const_int32(gallivm, s1 + 1);
- shuffles[4*quad + 2] = lp_build_const_int32(gallivm, s2);
- shuffles[4*quad + 3] = lp_build_const_int32(gallivm, s2 + 1);
- }
- derivs.ddx_ddy[0] = LLVMBuildShuffleVector(builder, ddxdyonec[0], ddxdyonec[1],
- LLVMConstVector(shuffles, length), "");
- if (dims == 3) {
- derivs.ddx_ddy[1] = ddxdyonec[2];
- }
+ derivs.ddx[dim] = lp_build_emit_fetch( &bld->bld_base, inst, 1, dim );
+ derivs.ddy[dim] = lp_build_emit_fetch( &bld->bld_base, inst, 2, dim );
}
+ deriv_ptr = &derivs;
unit = inst->Src[3].Register.Index;
} else {
- if (dims == 1) {
- derivs.ddx_ddy[0] = lp_build_packed_ddx_ddy_onecoord(&bld->bld_base.base, coords[0]);
- }
- else if (dims >= 2) {
- derivs.ddx_ddy[0] = lp_build_packed_ddx_ddy_twocoord(&bld->bld_base.base,
- coords[0], coords[1]);
- if (dims == 3) {
- derivs.ddx_ddy[1] = lp_build_packed_ddx_ddy_onecoord(&bld->bld_base.base, coords[2]);
- }
- }
unit = inst->Src[1].Register.Index;
}
@@ -1329,7 +1281,7 @@ emit_tex( struct lp_build_tgsi_soa_context *bld,
unit, unit,
coords,
offsets,
- &derivs,
+ deriv_ptr,
lod_bias, explicit_lod,
texel);
}
@@ -1341,13 +1293,13 @@ emit_sample(struct lp_build_tgsi_soa_context *bld,
boolean compare,
LLVMValueRef *texel)
{
- LLVMBuilderRef builder = bld->bld_base.base.gallivm->builder;
struct gallivm_state *gallivm = bld->bld_base.base.gallivm;
unsigned texture_unit, sampler_unit;
LLVMValueRef lod_bias, explicit_lod;
LLVMValueRef coords[4];
LLVMValueRef offsets[3] = { NULL };
struct lp_derivatives derivs;
+ struct lp_derivatives *deriv_ptr = NULL;
unsigned num_coords, dims;
unsigned i;
@@ -1366,9 +1318,6 @@ emit_sample(struct lp_build_tgsi_soa_context *bld,
texture_unit = inst->Src[1].Register.Index;
sampler_unit = inst->Src[2].Register.Index;
- derivs.ddx_ddy[0] = bld->bld_base.base.undef;
- derivs.ddx_ddy[1] = bld->bld_base.base.undef;
-
/*
* Note inst->Texture.Texture will contain the number of offsets,
* however the target information is NOT there and comes from the
@@ -1449,57 +1398,12 @@ emit_sample(struct lp_build_tgsi_soa_context *bld,
}
if (modifier == LP_BLD_TEX_MODIFIER_EXPLICIT_DERIV) {
- LLVMValueRef i32undef = LLVMGetUndef(LLVMInt32TypeInContext(gallivm->context));
- LLVMValueRef shuffles[LP_MAX_VECTOR_LENGTH];
- LLVMValueRef ddxdyonec[3];
- unsigned length = bld->bld_base.base.type.length;
- unsigned num_quads = length / 4;
unsigned dim;
- unsigned quad;
-
for (dim = 0; dim < dims; ++dim) {
- LLVMValueRef srcx = lp_build_emit_fetch( &bld->bld_base, inst, 3, dim );
- LLVMValueRef srcy = lp_build_emit_fetch( &bld->bld_base, inst, 4, dim );
- for (quad = 0; quad < num_quads; ++quad) {
- unsigned s1 = 4*quad;
- unsigned s2 = 4*quad + length;
- shuffles[4*quad + 0] = lp_build_const_int32(gallivm, s1);
- shuffles[4*quad + 1] = lp_build_const_int32(gallivm, s2);
- shuffles[4*quad + 2] = i32undef;
- shuffles[4*quad + 3] = i32undef;
- }
- ddxdyonec[dim] = LLVMBuildShuffleVector(builder, srcx, srcy,
- LLVMConstVector(shuffles, length), "");
- }
- if (dims == 1) {
- derivs.ddx_ddy[0] = ddxdyonec[0];
- }
- else if (dims >= 2) {
- for (quad = 0; quad < num_quads; ++quad) {
- unsigned s1 = 4*quad;
- unsigned s2 = 4*quad + length;
- shuffles[4*quad + 0] = lp_build_const_int32(gallivm, s1);
- shuffles[4*quad + 1] = lp_build_const_int32(gallivm, s1 + 1);
- shuffles[4*quad + 2] = lp_build_const_int32(gallivm, s2);
- shuffles[4*quad + 3] = lp_build_const_int32(gallivm, s2 + 1);
- }
- derivs.ddx_ddy[0] = LLVMBuildShuffleVector(builder, ddxdyonec[0], ddxdyonec[1],
- LLVMConstVector(shuffles, length), "");
- if (dims == 3) {
- derivs.ddx_ddy[1] = ddxdyonec[2];
- }
- }
- } else {
- if (dims == 1) {
- derivs.ddx_ddy[0] = lp_build_packed_ddx_ddy_onecoord(&bld->bld_base.base, coords[0]);
- }
- else if (dims >= 2) {
- derivs.ddx_ddy[0] = lp_build_packed_ddx_ddy_twocoord(&bld->bld_base.base,
- coords[0], coords[1]);
- if (dims == 3) {
- derivs.ddx_ddy[1] = lp_build_packed_ddx_ddy_onecoord(&bld->bld_base.base, coords[2]);
- }
+ derivs.ddx[dim] = lp_build_emit_fetch( &bld->bld_base, inst, 3, dim );
+ derivs.ddy[dim] = lp_build_emit_fetch( &bld->bld_base, inst, 4, dim );
}
+ deriv_ptr = &derivs;
}
/* some advanced gather instructions (txgo) would require 4 offsets */
@@ -1517,7 +1421,7 @@ emit_sample(struct lp_build_tgsi_soa_context *bld,
texture_unit, sampler_unit,
coords,
offsets,
- &derivs,
+ deriv_ptr,
lod_bias, explicit_lod,
texel);
}
@@ -1533,7 +1437,6 @@ emit_fetch_texels( struct lp_build_tgsi_soa_context *bld,
LLVMValueRef explicit_lod = NULL;
LLVMValueRef coords[3];
LLVMValueRef offsets[3] = { NULL };
- struct lp_derivatives derivs;
unsigned num_coords;
unsigned dims;
unsigned i;
@@ -1548,9 +1451,6 @@ emit_fetch_texels( struct lp_build_tgsi_soa_context *bld,
unit = inst->Src[1].Register.Index;
- derivs.ddx_ddy[0] = coord_undef;
- derivs.ddx_ddy[1] = coord_undef;
-
if (is_samplei) {
target = bld->sv[unit].Resource;
}
@@ -1612,7 +1512,7 @@ emit_fetch_texels( struct lp_build_tgsi_soa_context *bld,
unit, unit,
coords,
offsets,
- &derivs,
+ NULL,
NULL, explicit_lod,
texel);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 00:20:29 +0000