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Diffstat (limited to 'src/gallium/auxiliary/gallivm/lp_bld_sample_aos.c')
-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_sample_aos.c621
1 files changed, 289 insertions, 332 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample_aos.c b/src/gallium/auxiliary/gallivm/lp_bld_sample_aos.c
index 7e064900e7..d3e3b242af 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_sample_aos.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_sample_aos.c
@@ -45,6 +45,7 @@
#include "lp_bld_const.h"
#include "lp_bld_conv.h"
#include "lp_bld_arit.h"
+#include "lp_bld_bitarit.h"
#include "lp_bld_logic.h"
#include "lp_bld_swizzle.h"
#include "lp_bld_pack.h"
@@ -80,20 +81,21 @@ lp_build_sample_wrap_nearest_int(struct lp_build_sample_context *bld,
LLVMValueRef *out_offset,
LLVMValueRef *out_i)
{
- struct lp_build_context *uint_coord_bld = &bld->uint_coord_bld;
struct lp_build_context *int_coord_bld = &bld->int_coord_bld;
LLVMValueRef length_minus_one;
- length_minus_one = lp_build_sub(uint_coord_bld, length, uint_coord_bld->one);
+ length_minus_one = lp_build_sub(int_coord_bld, length, int_coord_bld->one);
switch(wrap_mode) {
case PIPE_TEX_WRAP_REPEAT:
if(is_pot)
coord = LLVMBuildAnd(bld->builder, coord, length_minus_one, "");
- else
- /* Signed remainder won't give the right results for negative
- * dividends but unsigned remainder does.*/
+ else {
+ /* Add a bias to the texcoord to handle negative coords */
+ LLVMValueRef bias = lp_build_mul_imm(int_coord_bld, length, 1024);
+ coord = LLVMBuildAdd(bld->builder, coord, bias, "");
coord = LLVMBuildURem(bld->builder, coord, length, "");
+ }
break;
case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
@@ -111,7 +113,7 @@ lp_build_sample_wrap_nearest_int(struct lp_build_sample_context *bld,
assert(0);
}
- lp_build_sample_partial_offset(uint_coord_bld, block_length, coord, stride,
+ lp_build_sample_partial_offset(int_coord_bld, block_length, coord, stride,
out_offset, out_i);
}
@@ -144,7 +146,6 @@ lp_build_sample_wrap_linear_int(struct lp_build_sample_context *bld,
LLVMValueRef *i0,
LLVMValueRef *i1)
{
- struct lp_build_context *uint_coord_bld = &bld->uint_coord_bld;
struct lp_build_context *int_coord_bld = &bld->int_coord_bld;
LLVMValueRef length_minus_one;
LLVMValueRef lmask, umask, mask;
@@ -186,8 +187,8 @@ lp_build_sample_wrap_linear_int(struct lp_build_sample_context *bld,
* multiplication.
*/
- *i0 = uint_coord_bld->zero;
- *i1 = uint_coord_bld->zero;
+ *i0 = int_coord_bld->zero;
+ *i1 = int_coord_bld->zero;
length_minus_one = lp_build_sub(int_coord_bld, length, int_coord_bld->one);
@@ -197,17 +198,18 @@ lp_build_sample_wrap_linear_int(struct lp_build_sample_context *bld,
coord0 = LLVMBuildAnd(bld->builder, coord0, length_minus_one, "");
}
else {
- /* Signed remainder won't give the right results for negative
- * dividends but unsigned remainder does.*/
+ /* Add a bias to the texcoord to handle negative coords */
+ LLVMValueRef bias = lp_build_mul_imm(int_coord_bld, length, 1024);
+ coord0 = LLVMBuildAdd(bld->builder, coord0, bias, "");
coord0 = LLVMBuildURem(bld->builder, coord0, length, "");
}
mask = lp_build_compare(bld->builder, int_coord_bld->type,
PIPE_FUNC_NOTEQUAL, coord0, length_minus_one);
- *offset0 = lp_build_mul(uint_coord_bld, coord0, stride);
+ *offset0 = lp_build_mul(int_coord_bld, coord0, stride);
*offset1 = LLVMBuildAnd(bld->builder,
- lp_build_add(uint_coord_bld, *offset0, stride),
+ lp_build_add(int_coord_bld, *offset0, stride),
mask, "");
break;
@@ -222,8 +224,8 @@ lp_build_sample_wrap_linear_int(struct lp_build_sample_context *bld,
mask = LLVMBuildAnd(bld->builder, lmask, umask, "");
- *offset0 = lp_build_mul(uint_coord_bld, coord0, stride);
- *offset1 = lp_build_add(uint_coord_bld,
+ *offset0 = lp_build_mul(int_coord_bld, coord0, stride);
+ *offset1 = lp_build_add(int_coord_bld,
*offset0,
LLVMBuildAnd(bld->builder, stride, mask, ""));
break;
@@ -236,8 +238,8 @@ lp_build_sample_wrap_linear_int(struct lp_build_sample_context *bld,
case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
default:
assert(0);
- *offset0 = uint_coord_bld->zero;
- *offset1 = uint_coord_bld->zero;
+ *offset0 = int_coord_bld->zero;
+ *offset1 = int_coord_bld->zero;
break;
}
}
@@ -250,9 +252,7 @@ lp_build_sample_wrap_linear_int(struct lp_build_sample_context *bld,
*/
static void
lp_build_sample_image_nearest(struct lp_build_sample_context *bld,
- LLVMValueRef width_vec,
- LLVMValueRef height_vec,
- LLVMValueRef depth_vec,
+ LLVMValueRef int_size,
LLVMValueRef row_stride_vec,
LLVMValueRef img_stride_vec,
LLVMValueRef data_ptr,
@@ -262,11 +262,12 @@ lp_build_sample_image_nearest(struct lp_build_sample_context *bld,
LLVMValueRef *colors_lo,
LLVMValueRef *colors_hi)
{
- const int dims = texture_dims(bld->static_state->target);
+ const unsigned dims = bld->dims;
LLVMBuilderRef builder = bld->builder;
struct lp_build_context i32, h16, u8n;
LLVMTypeRef i32_vec_type, h16_vec_type, u8n_vec_type;
LLVMValueRef i32_c8;
+ LLVMValueRef width_vec, height_vec, depth_vec;
LLVMValueRef s_ipart, t_ipart, r_ipart;
LLVMValueRef x_stride;
LLVMValueRef x_offset, offset;
@@ -280,30 +281,33 @@ lp_build_sample_image_nearest(struct lp_build_sample_context *bld,
h16_vec_type = lp_build_vec_type(h16.type);
u8n_vec_type = lp_build_vec_type(u8n.type);
+ lp_build_extract_image_sizes(bld,
+ bld->int_size_type,
+ bld->int_coord_type,
+ int_size,
+ &width_vec,
+ &height_vec,
+ &depth_vec);
+
if (bld->static_state->normalized_coords) {
- /* s = s * width, t = t * height */
- LLVMTypeRef coord_vec_type = lp_build_vec_type(bld->coord_type);
- LLVMValueRef fp_width = LLVMBuildSIToFP(bld->builder, width_vec,
- coord_vec_type, "");
- s = lp_build_mul(&bld->coord_bld, s, fp_width);
- if (dims >= 2) {
- LLVMValueRef fp_height = LLVMBuildSIToFP(bld->builder, height_vec,
- coord_vec_type, "");
- t = lp_build_mul(&bld->coord_bld, t, fp_height);
- if (dims >= 3) {
- LLVMValueRef fp_depth = LLVMBuildSIToFP(bld->builder, depth_vec,
- coord_vec_type, "");
- r = lp_build_mul(&bld->coord_bld, r, fp_depth);
- }
- }
- }
+ LLVMValueRef scaled_size;
+ LLVMValueRef flt_size;
- /* scale coords by 256 (8 fractional bits) */
- s = lp_build_mul_imm(&bld->coord_bld, s, 256);
- if (dims >= 2)
- t = lp_build_mul_imm(&bld->coord_bld, t, 256);
- if (dims >= 3)
- r = lp_build_mul_imm(&bld->coord_bld, r, 256);
+ /* scale size by 256 (8 fractional bits) */
+ scaled_size = lp_build_shl_imm(&bld->int_size_bld, int_size, 8);
+
+ flt_size = lp_build_int_to_float(&bld->float_size_bld, scaled_size);
+
+ lp_build_unnormalized_coords(bld, flt_size, &s, &t, &r);
+ }
+ else {
+ /* scale coords by 256 (8 fractional bits) */
+ s = lp_build_mul_imm(&bld->coord_bld, s, 256);
+ if (dims >= 2)
+ t = lp_build_mul_imm(&bld->coord_bld, t, 256);
+ if (dims >= 3)
+ r = lp_build_mul_imm(&bld->coord_bld, r, 256);
+ }
/* convert float to int */
s = LLVMBuildFPToSI(builder, s, i32_vec_type, "");
@@ -321,7 +325,7 @@ lp_build_sample_image_nearest(struct lp_build_sample_context *bld,
r_ipart = LLVMBuildAShr(builder, r, i32_c8, "");
/* get pixel, row, image strides */
- x_stride = lp_build_const_vec(bld->uint_coord_bld.type,
+ x_stride = lp_build_const_vec(bld->int_coord_bld.type,
bld->format_desc->block.bits/8);
/* Do texcoord wrapping, compute texel offset */
@@ -340,7 +344,7 @@ lp_build_sample_image_nearest(struct lp_build_sample_context *bld,
bld->static_state->pot_height,
bld->static_state->wrap_t,
&y_offset, &y_subcoord);
- offset = lp_build_add(&bld->uint_coord_bld, offset, y_offset);
+ offset = lp_build_add(&bld->int_coord_bld, offset, y_offset);
if (dims >= 3) {
LLVMValueRef z_offset;
lp_build_sample_wrap_nearest_int(bld,
@@ -349,13 +353,13 @@ lp_build_sample_image_nearest(struct lp_build_sample_context *bld,
bld->static_state->pot_height,
bld->static_state->wrap_r,
&z_offset, &z_subcoord);
- offset = lp_build_add(&bld->uint_coord_bld, offset, z_offset);
+ offset = lp_build_add(&bld->int_coord_bld, offset, z_offset);
}
else if (bld->static_state->target == PIPE_TEXTURE_CUBE) {
LLVMValueRef z_offset;
/* The r coord is the cube face in [0,5] */
- z_offset = lp_build_mul(&bld->uint_coord_bld, r, img_stride_vec);
- offset = lp_build_add(&bld->uint_coord_bld, offset, z_offset);
+ z_offset = lp_build_mul(&bld->int_coord_bld, r, img_stride_vec);
+ offset = lp_build_add(&bld->int_coord_bld, offset, z_offset);
}
}
@@ -414,9 +418,7 @@ lp_build_sample_image_nearest(struct lp_build_sample_context *bld,
*/
static void
lp_build_sample_image_linear(struct lp_build_sample_context *bld,
- LLVMValueRef width_vec,
- LLVMValueRef height_vec,
- LLVMValueRef depth_vec,
+ LLVMValueRef int_size,
LLVMValueRef row_stride_vec,
LLVMValueRef img_stride_vec,
LLVMValueRef data_ptr,
@@ -426,11 +428,12 @@ lp_build_sample_image_linear(struct lp_build_sample_context *bld,
LLVMValueRef *colors_lo,
LLVMValueRef *colors_hi)
{
- const int dims = texture_dims(bld->static_state->target);
+ const unsigned dims = bld->dims;
LLVMBuilderRef builder = bld->builder;
struct lp_build_context i32, h16, u8n;
LLVMTypeRef i32_vec_type, h16_vec_type, u8n_vec_type;
LLVMValueRef i32_c8, i32_c128, i32_c255;
+ LLVMValueRef width_vec, height_vec, depth_vec;
LLVMValueRef s_ipart, s_fpart, s_fpart_lo, s_fpart_hi;
LLVMValueRef t_ipart, t_fpart, t_fpart_lo, t_fpart_hi;
LLVMValueRef r_ipart, r_fpart, r_fpart_lo, r_fpart_hi;
@@ -455,30 +458,33 @@ lp_build_sample_image_linear(struct lp_build_sample_context *bld,
h16_vec_type = lp_build_vec_type(h16.type);
u8n_vec_type = lp_build_vec_type(u8n.type);
+ lp_build_extract_image_sizes(bld,
+ bld->int_size_type,
+ bld->int_coord_type,
+ int_size,
+ &width_vec,
+ &height_vec,
+ &depth_vec);
+
if (bld->static_state->normalized_coords) {
- /* s = s * width, t = t * height */
- LLVMTypeRef coord_vec_type = lp_build_vec_type(bld->coord_type);
- LLVMValueRef fp_width = LLVMBuildSIToFP(bld->builder, width_vec,
- coord_vec_type, "");
- s = lp_build_mul(&bld->coord_bld, s, fp_width);
- if (dims >= 2) {
- LLVMValueRef fp_height = LLVMBuildSIToFP(bld->builder, height_vec,
- coord_vec_type, "");
- t = lp_build_mul(&bld->coord_bld, t, fp_height);
- }
- if (dims >= 3) {
- LLVMValueRef fp_depth = LLVMBuildSIToFP(bld->builder, depth_vec,
- coord_vec_type, "");
- r = lp_build_mul(&bld->coord_bld, r, fp_depth);
- }
- }
+ LLVMValueRef scaled_size;
+ LLVMValueRef flt_size;
- /* scale coords by 256 (8 fractional bits) */
- s = lp_build_mul_imm(&bld->coord_bld, s, 256);
- if (dims >= 2)
- t = lp_build_mul_imm(&bld->coord_bld, t, 256);
- if (dims >= 3)
- r = lp_build_mul_imm(&bld->coord_bld, r, 256);
+ /* scale size by 256 (8 fractional bits) */
+ scaled_size = lp_build_shl_imm(&bld->int_size_bld, int_size, 8);
+
+ flt_size = lp_build_int_to_float(&bld->float_size_bld, scaled_size);
+
+ lp_build_unnormalized_coords(bld, flt_size, &s, &t, &r);
+ }
+ else {
+ /* scale coords by 256 (8 fractional bits) */
+ s = lp_build_mul_imm(&bld->coord_bld, s, 256);
+ if (dims >= 2)
+ t = lp_build_mul_imm(&bld->coord_bld, t, 256);
+ if (dims >= 3)
+ r = lp_build_mul_imm(&bld->coord_bld, r, 256);
+ }
/* convert float to int */
s = LLVMBuildFPToSI(builder, s, i32_vec_type, "");
@@ -489,10 +495,8 @@ lp_build_sample_image_linear(struct lp_build_sample_context *bld,
/* subtract 0.5 (add -128) */
i32_c128 = lp_build_const_int_vec(i32.type, -128);
- if (!bld->static_state->force_nearest_s) {
- s = LLVMBuildAdd(builder, s, i32_c128, "");
- }
- if (dims >= 2 && !bld->static_state->force_nearest_t) {
+ s = LLVMBuildAdd(builder, s, i32_c128, "");
+ if (dims >= 2) {
t = LLVMBuildAdd(builder, t, i32_c128, "");
}
if (dims >= 3) {
@@ -516,7 +520,7 @@ lp_build_sample_image_linear(struct lp_build_sample_context *bld,
r_fpart = LLVMBuildAnd(builder, r, i32_c255, "");
/* get pixel, row and image strides */
- x_stride = lp_build_const_vec(bld->uint_coord_bld.type,
+ x_stride = lp_build_const_vec(bld->int_coord_bld.type,
bld->format_desc->block.bits/8);
y_stride = row_stride_vec;
z_stride = img_stride_vec;
@@ -547,9 +551,9 @@ lp_build_sample_image_linear(struct lp_build_sample_context *bld,
for (z = 0; z < 2; z++) {
for (x = 0; x < 2; x++) {
- offset[z][0][x] = lp_build_add(&bld->uint_coord_bld,
+ offset[z][0][x] = lp_build_add(&bld->int_coord_bld,
offset[z][0][x], y_offset0);
- offset[z][1][x] = lp_build_add(&bld->uint_coord_bld,
+ offset[z][1][x] = lp_build_add(&bld->int_coord_bld,
offset[z][1][x], y_offset1);
}
}
@@ -565,20 +569,20 @@ lp_build_sample_image_linear(struct lp_build_sample_context *bld,
&z_subcoord[0], &z_subcoord[1]);
for (y = 0; y < 2; y++) {
for (x = 0; x < 2; x++) {
- offset[0][y][x] = lp_build_add(&bld->uint_coord_bld,
+ offset[0][y][x] = lp_build_add(&bld->int_coord_bld,
offset[0][y][x], z_offset0);
- offset[1][y][x] = lp_build_add(&bld->uint_coord_bld,
+ offset[1][y][x] = lp_build_add(&bld->int_coord_bld,
offset[1][y][x], z_offset1);
}
}
}
else if (bld->static_state->target == PIPE_TEXTURE_CUBE) {
LLVMValueRef z_offset;
- z_offset = lp_build_mul(&bld->uint_coord_bld, r, img_stride_vec);
+ z_offset = lp_build_mul(&bld->int_coord_bld, r, img_stride_vec);
for (y = 0; y < 2; y++) {
for (x = 0; x < 2; x++) {
/* The r coord is the cube face in [0,5] */
- offset[0][y][x] = lp_build_add(&bld->uint_coord_bld,
+ offset[0][y][x] = lp_build_add(&bld->int_coord_bld,
offset[0][y][x], z_offset);
}
}
@@ -709,82 +713,56 @@ lp_build_sample_image_linear(struct lp_build_sample_context *bld,
/*
* Linear interpolation with 8.8 fixed point.
*/
- if (bld->static_state->force_nearest_s) {
- /* special case 1-D lerp */
- packed_lo = lp_build_lerp(&h16,
- t_fpart_lo,
- neighbors_lo[0][0][0],
- neighbors_lo[0][0][1]);
-
- packed_hi = lp_build_lerp(&h16,
- t_fpart_hi,
- neighbors_hi[0][1][0],
- neighbors_hi[0][1][0]);
- }
- else if (bld->static_state->force_nearest_t) {
- /* special case 1-D lerp */
+ if (dims == 1) {
+ /* 1-D lerp */
packed_lo = lp_build_lerp(&h16,
- s_fpart_lo,
- neighbors_lo[0][0][0],
- neighbors_lo[0][0][1]);
+ s_fpart_lo,
+ neighbors_lo[0][0][0],
+ neighbors_lo[0][0][1]);
packed_hi = lp_build_lerp(&h16,
- s_fpart_hi,
- neighbors_hi[0][0][0],
- neighbors_hi[0][0][1]);
+ s_fpart_hi,
+ neighbors_hi[0][0][0],
+ neighbors_hi[0][0][1]);
}
else {
- /* general 1/2/3-D lerping */
- if (dims == 1) {
- packed_lo = lp_build_lerp(&h16,
- s_fpart_lo,
- neighbors_lo[0][0][0],
- neighbors_lo[0][0][1]);
-
- packed_hi = lp_build_lerp(&h16,
- s_fpart_hi,
- neighbors_hi[0][0][0],
- neighbors_hi[0][0][1]);
- }
- else {
- /* 2-D lerp */
- packed_lo = lp_build_lerp_2d(&h16,
- s_fpart_lo, t_fpart_lo,
- neighbors_lo[0][0][0],
- neighbors_lo[0][0][1],
- neighbors_lo[0][1][0],
- neighbors_lo[0][1][1]);
-
- packed_hi = lp_build_lerp_2d(&h16,
- s_fpart_hi, t_fpart_hi,
- neighbors_hi[0][0][0],
- neighbors_hi[0][0][1],
- neighbors_hi[0][1][0],
- neighbors_hi[0][1][1]);
-
- if (dims >= 3) {
- LLVMValueRef packed_lo2, packed_hi2;
-
- /* lerp in the second z slice */
- packed_lo2 = lp_build_lerp_2d(&h16,
- s_fpart_lo, t_fpart_lo,
- neighbors_lo[1][0][0],
- neighbors_lo[1][0][1],
- neighbors_lo[1][1][0],
- neighbors_lo[1][1][1]);
-
- packed_hi2 = lp_build_lerp_2d(&h16,
- s_fpart_hi, t_fpart_hi,
- neighbors_hi[1][0][0],
- neighbors_hi[1][0][1],
- neighbors_hi[1][1][0],
- neighbors_hi[1][1][1]);
- /* interp between two z slices */
- packed_lo = lp_build_lerp(&h16, r_fpart_lo,
- packed_lo, packed_lo2);
- packed_hi = lp_build_lerp(&h16, r_fpart_hi,
- packed_hi, packed_hi2);
- }
+ /* 2-D lerp */
+ packed_lo = lp_build_lerp_2d(&h16,
+ s_fpart_lo, t_fpart_lo,
+ neighbors_lo[0][0][0],
+ neighbors_lo[0][0][1],
+ neighbors_lo[0][1][0],
+ neighbors_lo[0][1][1]);
+
+ packed_hi = lp_build_lerp_2d(&h16,
+ s_fpart_hi, t_fpart_hi,
+ neighbors_hi[0][0][0],
+ neighbors_hi[0][0][1],
+ neighbors_hi[0][1][0],
+ neighbors_hi[0][1][1]);
+
+ if (dims >= 3) {
+ LLVMValueRef packed_lo2, packed_hi2;
+
+ /* lerp in the second z slice */
+ packed_lo2 = lp_build_lerp_2d(&h16,
+ s_fpart_lo, t_fpart_lo,
+ neighbors_lo[1][0][0],
+ neighbors_lo[1][0][1],
+ neighbors_lo[1][1][0],
+ neighbors_lo[1][1][1]);
+
+ packed_hi2 = lp_build_lerp_2d(&h16,
+ s_fpart_hi, t_fpart_hi,
+ neighbors_hi[1][0][0],
+ neighbors_hi[1][0][1],
+ neighbors_hi[1][1][0],
+ neighbors_hi[1][1][1]);
+ /* interp between two z slices */
+ packed_lo = lp_build_lerp(&h16, r_fpart_lo,
+ packed_lo, packed_lo2);
+ packed_hi = lp_build_lerp(&h16, r_fpart_hi,
+ packed_hi, packed_hi2);
}
}
@@ -806,76 +784,124 @@ lp_build_sample_mipmap(struct lp_build_sample_context *bld,
LLVMValueRef s,
LLVMValueRef t,
LLVMValueRef r,
+ LLVMValueRef ilevel0,
+ LLVMValueRef ilevel1,
LLVMValueRef lod_fpart,
- LLVMValueRef width0_vec,
- LLVMValueRef width1_vec,
- LLVMValueRef height0_vec,
- LLVMValueRef height1_vec,
- LLVMValueRef depth0_vec,
- LLVMValueRef depth1_vec,
- LLVMValueRef row_stride0_vec,
- LLVMValueRef row_stride1_vec,
- LLVMValueRef img_stride0_vec,
- LLVMValueRef img_stride1_vec,
- LLVMValueRef data_ptr0,
- LLVMValueRef data_ptr1,
- LLVMValueRef *colors_lo,
- LLVMValueRef *colors_hi)
+ LLVMValueRef colors_lo_var,
+ LLVMValueRef colors_hi_var)
{
+ LLVMBuilderRef builder = bld->builder;
+ LLVMValueRef size0;
+ LLVMValueRef size1;
+ LLVMValueRef row_stride0_vec;
+ LLVMValueRef row_stride1_vec;
+ LLVMValueRef img_stride0_vec;
+ LLVMValueRef img_stride1_vec;
+ LLVMValueRef data_ptr0;
+ LLVMValueRef data_ptr1;
LLVMValueRef colors0_lo, colors0_hi;
LLVMValueRef colors1_lo, colors1_hi;
+
+ /* sample the first mipmap level */
+ lp_build_mipmap_level_sizes(bld, ilevel0,
+ &size0,
+ &row_stride0_vec, &img_stride0_vec);
+ data_ptr0 = lp_build_get_mipmap_level(bld, ilevel0);
if (img_filter == PIPE_TEX_FILTER_NEAREST) {
- /* sample the first mipmap level */
lp_build_sample_image_nearest(bld,
- width0_vec, height0_vec, depth0_vec,
+ size0,
row_stride0_vec, img_stride0_vec,
data_ptr0, s, t, r,
&colors0_lo, &colors0_hi);
-
- if (mip_filter == PIPE_TEX_MIPFILTER_LINEAR) {
- /* sample the second mipmap level */
- lp_build_sample_image_nearest(bld,
- width1_vec, height1_vec, depth1_vec,
- row_stride1_vec, img_stride1_vec,
- data_ptr1, s, t, r,
- &colors1_lo, &colors1_hi);
- }
}
else {
assert(img_filter == PIPE_TEX_FILTER_LINEAR);
-
- /* sample the first mipmap level */
lp_build_sample_image_linear(bld,
- width0_vec, height0_vec, depth0_vec,
+ size0,
row_stride0_vec, img_stride0_vec,
data_ptr0, s, t, r,
&colors0_lo, &colors0_hi);
-
- if (mip_filter == PIPE_TEX_MIPFILTER_LINEAR) {
- /* sample the second mipmap level */
- lp_build_sample_image_linear(bld,
- width1_vec, height1_vec, depth1_vec,
- row_stride1_vec, img_stride1_vec,
- data_ptr1, s, t, r,
- &colors1_lo, &colors1_hi);
- }
}
+ /* Store the first level's colors in the output variables */
+ LLVMBuildStore(builder, colors0_lo, colors_lo_var);
+ LLVMBuildStore(builder, colors0_hi, colors_hi_var);
+
if (mip_filter == PIPE_TEX_MIPFILTER_LINEAR) {
- /* interpolate samples from the two mipmap levels */
- struct lp_build_context h16;
- lp_build_context_init(&h16, bld->builder, lp_type_ufixed(16));
-
- *colors_lo = lp_build_lerp(&h16, lod_fpart,
- colors0_lo, colors1_lo);
- *colors_hi = lp_build_lerp(&h16, lod_fpart,
- colors0_hi, colors1_hi);
- }
- else {
- /* use first/only level's colors */
- *colors_lo = colors0_lo;
- *colors_hi = colors0_hi;
+ LLVMValueRef h16_scale = LLVMConstReal(LLVMFloatType(), 256.0);
+ LLVMTypeRef i32_type = LLVMIntType(32);
+ struct lp_build_if_state if_ctx;
+ LLVMValueRef need_lerp;
+
+ lod_fpart = LLVMBuildFMul(builder, lod_fpart, h16_scale, "");
+ lod_fpart = LLVMBuildFPToSI(builder, lod_fpart, i32_type, "lod_fpart.fixed16");
+
+ /* need_lerp = lod_fpart > 0 */
+ need_lerp = LLVMBuildICmp(builder, LLVMIntSGT,
+ lod_fpart, LLVMConstNull(i32_type),
+ "need_lerp");
+
+ lp_build_if(&if_ctx, builder, need_lerp);
+ {
+ struct lp_build_context h16_bld;
+
+ lp_build_context_init(&h16_bld, builder, lp_type_ufixed(16));
+
+ /* sample the second mipmap level */
+ lp_build_mipmap_level_sizes(bld, ilevel1,
+ &size1,
+ &row_stride1_vec, &img_stride1_vec);
+ data_ptr1 = lp_build_get_mipmap_level(bld, ilevel1);
+ if (img_filter == PIPE_TEX_FILTER_NEAREST) {
+ lp_build_sample_image_nearest(bld,
+ size1,
+ row_stride1_vec, img_stride1_vec,
+ data_ptr1, s, t, r,
+ &colors1_lo, &colors1_hi);
+ }
+ else {
+ lp_build_sample_image_linear(bld,
+ size1,
+ row_stride1_vec, img_stride1_vec,
+ data_ptr1, s, t, r,
+ &colors1_lo, &colors1_hi);
+ }
+
+ /* interpolate samples from the two mipmap levels */
+
+ lod_fpart = LLVMBuildTrunc(builder, lod_fpart, h16_bld.elem_type, "");
+ lod_fpart = lp_build_broadcast_scalar(&h16_bld, lod_fpart);
+
+#if HAVE_LLVM == 0x208
+ /* This is a work-around for a bug in LLVM 2.8.
+ * Evidently, something goes wrong in the construction of the
+ * lod_fpart short[8] vector. Adding this no-effect shuffle seems
+ * to force the vector to be properly constructed.
+ * Tested with mesa-demos/src/tests/mipmap_limits.c (press t, f).
+ */
+ {
+ LLVMValueRef shuffles[8], shuffle;
+ int i;
+ assert(h16_bld.type.length <= Elements(shuffles));
+ for (i = 0; i < h16_bld.type.length; i++)
+ shuffles[i] = lp_build_const_int32(2 * (i & 1));
+ shuffle = LLVMConstVector(shuffles, h16_bld.type.length);
+ lod_fpart = LLVMBuildShuffleVector(builder,
+ lod_fpart, lod_fpart,
+ shuffle, "");
+ }
+#endif
+
+ colors0_lo = lp_build_lerp(&h16_bld, lod_fpart,
+ colors0_lo, colors1_lo);
+ colors0_hi = lp_build_lerp(&h16_bld, lod_fpart,
+ colors0_hi, colors1_hi);
+
+ LLVMBuildStore(builder, colors0_lo, colors_lo_var);
+ LLVMBuildStore(builder, colors0_hi, colors_hi_var);
+ }
+ lp_build_endif(&if_ctx);
}
}
@@ -896,35 +922,22 @@ lp_build_sample_aos(struct lp_build_sample_context *bld,
const LLVMValueRef *ddy,
LLVMValueRef lod_bias, /* optional */
LLVMValueRef explicit_lod, /* optional */
- LLVMValueRef width,
- LLVMValueRef height,
- LLVMValueRef depth,
- LLVMValueRef width_vec,
- LLVMValueRef height_vec,
- LLVMValueRef depth_vec,
- LLVMValueRef row_stride_array,
- LLVMValueRef img_stride_array,
- LLVMValueRef data_array,
LLVMValueRef texel_out[4])
{
- struct lp_build_context *float_bld = &bld->float_bld;
+ struct lp_build_context *int_bld = &bld->int_bld;
LLVMBuilderRef builder = bld->builder;
const unsigned mip_filter = bld->static_state->min_mip_filter;
const unsigned min_filter = bld->static_state->min_img_filter;
const unsigned mag_filter = bld->static_state->mag_img_filter;
- const int dims = texture_dims(bld->static_state->target);
- LLVMValueRef lod = NULL, lod_fpart = NULL;
+ const unsigned dims = bld->dims;
+ LLVMValueRef lod_ipart = NULL, lod_fpart = NULL;
LLVMValueRef ilevel0, ilevel1 = NULL;
- LLVMValueRef width0_vec = NULL, height0_vec = NULL, depth0_vec = NULL;
- LLVMValueRef width1_vec = NULL, height1_vec = NULL, depth1_vec = NULL;
- LLVMValueRef row_stride0_vec = NULL, row_stride1_vec = NULL;
- LLVMValueRef img_stride0_vec = NULL, img_stride1_vec = NULL;
- LLVMValueRef data_ptr0, data_ptr1 = NULL;
LLVMValueRef packed, packed_lo, packed_hi;
LLVMValueRef unswizzled[4];
LLVMValueRef face_ddx[4], face_ddy[4];
- struct lp_build_context h16;
- LLVMTypeRef h16_vec_type;
+ struct lp_build_context h16_bld;
+ LLVMTypeRef i32t = LLVMInt32Type();
+ LLVMValueRef i32t_zero = LLVMConstInt(i32t, 0, 0);
/* we only support the common/simple wrap modes at this time */
assert(lp_is_simple_wrap_mode(bld->static_state->wrap_s));
@@ -935,9 +948,7 @@ lp_build_sample_aos(struct lp_build_sample_context *bld,
/* make 16-bit fixed-pt builder context */
- lp_build_context_init(&h16, builder, lp_type_ufixed(16));
- h16_vec_type = lp_build_vec_type(h16.type);
-
+ lp_build_context_init(&h16_bld, builder, lp_type_ufixed(16));
/* cube face selection, compute pre-face coords, etc. */
if (bld->static_state->target == PIPE_TEXTURE_CUBE) {
@@ -949,19 +960,18 @@ lp_build_sample_aos(struct lp_build_sample_context *bld,
r = lp_build_broadcast_scalar(&bld->int_coord_bld, face); /* vec */
/* recompute ddx, ddy using the new (s,t) face texcoords */
- face_ddx[0] = lp_build_ddx(&bld->coord_bld, s);
- face_ddx[1] = lp_build_ddx(&bld->coord_bld, t);
+ face_ddx[0] = lp_build_scalar_ddx(&bld->coord_bld, s);
+ face_ddx[1] = lp_build_scalar_ddx(&bld->coord_bld, t);
face_ddx[2] = NULL;
face_ddx[3] = NULL;
- face_ddy[0] = lp_build_ddy(&bld->coord_bld, s);
- face_ddy[1] = lp_build_ddy(&bld->coord_bld, t);
+ face_ddy[0] = lp_build_scalar_ddy(&bld->coord_bld, s);
+ face_ddy[1] = lp_build_scalar_ddy(&bld->coord_bld, t);
face_ddy[2] = NULL;
face_ddy[3] = NULL;
ddx = face_ddx;
ddy = face_ddy;
}
-
/*
* Compute the level of detail (float).
*/
@@ -970,15 +980,16 @@ lp_build_sample_aos(struct lp_build_sample_context *bld,
/* Need to compute lod either to choose mipmap levels or to
* distinguish between minification/magnification with one mipmap level.
*/
- lod = lp_build_lod_selector(bld, ddx, ddy,
- lod_bias, explicit_lod,
- width, height, depth);
+ lp_build_lod_selector(bld, unit, ddx, ddy,
+ lod_bias, explicit_lod,
+ mip_filter,
+ &lod_ipart, &lod_fpart);
+ } else {
+ lod_ipart = i32t_zero;
}
/*
* Compute integer mipmap level(s) to fetch texels from: ilevel0, ilevel1
- * If mipfilter=linear, also compute the weight between the two
- * mipmap levels: lod_fpart
*/
switch (mip_filter) {
default:
@@ -991,135 +1002,81 @@ lp_build_sample_aos(struct lp_build_sample_context *bld,
* We should be able to set ilevel0 = const(0) but that causes
* bad x86 code to be emitted.
*/
- lod = lp_build_const_elem(bld->coord_bld.type, 0.0);
- lp_build_nearest_mip_level(bld, unit, lod, &ilevel0);
+ assert(lod_ipart);
+ lp_build_nearest_mip_level(bld, unit, lod_ipart, &ilevel0);
}
else {
- ilevel0 = LLVMConstInt(LLVMInt32Type(), 0, 0);
+ ilevel0 = i32t_zero;
}
break;
case PIPE_TEX_MIPFILTER_NEAREST:
- assert(lod);
- lp_build_nearest_mip_level(bld, unit, lod, &ilevel0);
+ assert(lod_ipart);
+ lp_build_nearest_mip_level(bld, unit, lod_ipart, &ilevel0);
break;
case PIPE_TEX_MIPFILTER_LINEAR:
- {
- LLVMValueRef f256 = LLVMConstReal(LLVMFloatType(), 256.0);
- LLVMValueRef i255 = lp_build_const_int32(255);
- LLVMTypeRef i16_type = LLVMIntType(16);
-
- assert(lod);
-
- lp_build_linear_mip_levels(bld, unit, lod, &ilevel0, &ilevel1,
- &lod_fpart);
- lod_fpart = LLVMBuildFMul(builder, lod_fpart, f256, "");
- lod_fpart = lp_build_ifloor(&bld->float_bld, lod_fpart);
- lod_fpart = LLVMBuildAnd(builder, lod_fpart, i255, "");
- lod_fpart = LLVMBuildTrunc(builder, lod_fpart, i16_type, "");
- lod_fpart = lp_build_broadcast_scalar(&h16, lod_fpart);
-
- /* the lod_fpart values will be fixed pt values in [0,1) */
- }
+ assert(lod_ipart);
+ assert(lod_fpart);
+ lp_build_linear_mip_levels(bld, unit,
+ lod_ipart, &lod_fpart,
+ &ilevel0, &ilevel1);
break;
}
- /* compute image size(s) of source mipmap level(s) */
- lp_build_mipmap_level_sizes(bld, dims, width_vec, height_vec, depth_vec,
- ilevel0, ilevel1,
- row_stride_array, img_stride_array,
- &width0_vec, &width1_vec,
- &height0_vec, &height1_vec,
- &depth0_vec, &depth1_vec,
- &row_stride0_vec, &row_stride1_vec,
- &img_stride0_vec, &img_stride1_vec);
-
/*
- * Get pointer(s) to image data for mipmap level(s).
+ * Get/interpolate texture colors.
*/
- data_ptr0 = lp_build_get_mipmap_level(bld, data_array, ilevel0);
- if (mip_filter == PIPE_TEX_MIPFILTER_LINEAR) {
- data_ptr1 = lp_build_get_mipmap_level(bld, data_array, ilevel1);
- }
+ packed_lo = lp_build_alloca(builder, h16_bld.vec_type, "packed_lo");
+ packed_hi = lp_build_alloca(builder, h16_bld.vec_type, "packed_hi");
- /*
- * Get/interpolate texture colors.
- */
if (min_filter == mag_filter) {
/* no need to distinquish between minification and magnification */
- lp_build_sample_mipmap(bld, min_filter, mip_filter,
- s, t, r, lod_fpart,
- width0_vec, width1_vec,
- height0_vec, height1_vec,
- depth0_vec, depth1_vec,
- row_stride0_vec, row_stride1_vec,
- img_stride0_vec, img_stride1_vec,
- data_ptr0, data_ptr1,
- &packed_lo, &packed_hi);
+ lp_build_sample_mipmap(bld,
+ min_filter, mip_filter,
+ s, t, r,
+ ilevel0, ilevel1, lod_fpart,
+ packed_lo, packed_hi);
}
else {
/* Emit conditional to choose min image filter or mag image filter
* depending on the lod being > 0 or <= 0, respectively.
*/
- struct lp_build_flow_context *flow_ctx;
struct lp_build_if_state if_ctx;
LLVMValueRef minify;
- flow_ctx = lp_build_flow_create(builder);
- lp_build_flow_scope_begin(flow_ctx);
-
- packed_lo = LLVMGetUndef(h16_vec_type);
- packed_hi = LLVMGetUndef(h16_vec_type);
+ /* minify = lod >= 0.0 */
+ minify = LLVMBuildICmp(builder, LLVMIntSGE,
+ lod_ipart, int_bld->zero, "");
- lp_build_flow_scope_declare(flow_ctx, &packed_lo);
- lp_build_flow_scope_declare(flow_ctx, &packed_hi);
-
- /* minify = lod > 0.0 */
- minify = LLVMBuildFCmp(builder, LLVMRealUGE,
- lod, float_bld->zero, "");
-
- lp_build_if(&if_ctx, flow_ctx, builder, minify);
+ lp_build_if(&if_ctx, builder, minify);
{
/* Use the minification filter */
- lp_build_sample_mipmap(bld, min_filter, mip_filter,
- s, t, r, lod_fpart,
- width0_vec, width1_vec,
- height0_vec, height1_vec,
- depth0_vec, depth1_vec,
- row_stride0_vec, row_stride1_vec,
- img_stride0_vec, img_stride1_vec,
- data_ptr0, data_ptr1,
- &packed_lo, &packed_hi);
+ lp_build_sample_mipmap(bld,
+ min_filter, mip_filter,
+ s, t, r,
+ ilevel0, ilevel1, lod_fpart,
+ packed_lo, packed_hi);
}
lp_build_else(&if_ctx);
{
/* Use the magnification filter */
- lp_build_sample_mipmap(bld, mag_filter, mip_filter,
- s, t, r, lod_fpart,
- width0_vec, width1_vec,
- height0_vec, height1_vec,
- depth0_vec, depth1_vec,
- row_stride0_vec, row_stride1_vec,
- img_stride0_vec, img_stride1_vec,
- data_ptr0, data_ptr1,
- &packed_lo, &packed_hi);
+ lp_build_sample_mipmap(bld,
+ mag_filter, PIPE_TEX_MIPFILTER_NONE,
+ s, t, r,
+ i32t_zero, NULL, NULL,
+ packed_lo, packed_hi);
}
lp_build_endif(&if_ctx);
-
- lp_build_flow_scope_end(flow_ctx);
- lp_build_flow_destroy(flow_ctx);
}
- /* combine 'packed_lo', 'packed_hi' into 'packed' */
- {
- struct lp_build_context h16, u8n;
-
- lp_build_context_init(&h16, builder, lp_type_ufixed(16));
- lp_build_context_init(&u8n, builder, lp_type_unorm(8));
-
- packed = lp_build_pack2(builder, h16.type, u8n.type,
- packed_lo, packed_hi);
- }
+ /*
+ * combine the values stored in 'packed_lo' and 'packed_hi' variables
+ * into 'packed'
+ */
+ packed = lp_build_pack2(builder,
+ h16_bld.type, lp_type_unorm(8),
+ LLVMBuildLoad(builder, packed_lo, ""),
+ LLVMBuildLoad(builder, packed_hi, ""));
/*
* Convert to SoA and swizzle.
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-20 15:57:44 +0000