*/
static void
lp_build_sample_texel_soa(struct lp_build_sample_context *bld,
- unsigned sampler_unit,
LLVMValueRef width,
LLVMValueRef height,
LLVMValueRef depth,
bld->texel_type,
data_ptr, offset,
i, j,
+ bld->cache,
texel_out);
/*
break;
case PIPE_TEX_WRAP_MIRROR_REPEAT:
+ if (offset) {
+ offset = lp_build_int_to_float(coord_bld, offset);
+ offset = lp_build_div(coord_bld, offset, length_f);
+ coord = lp_build_add(coord_bld, coord, offset);
+ }
/* compute mirror function */
coord = lp_build_coord_mirror(bld, coord);
/* scale coord to length */
coord = lp_build_mul(coord_bld, coord, length_f);
coord = lp_build_sub(coord_bld, coord, half);
- if (offset) {
- offset = lp_build_int_to_float(coord_bld, offset);
- coord = lp_build_add(coord_bld, coord, offset);
- }
/* convert to int, compute lerp weight */
lp_build_ifloor_fract(coord_bld, coord, &coord0, &weight);
coord = lp_build_mul(coord_bld, coord, length_f);
}
+ if (offset) {
+ offset = lp_build_int_to_float(coord_bld, offset);
+ coord = lp_build_add(coord_bld, coord, offset);
+ }
/* floor */
/* use itrunc instead since we clamp to 0 anyway */
icoord = lp_build_itrunc(coord_bld, coord);
- if (offset) {
- icoord = lp_build_add(int_coord_bld, icoord, offset);
- }
/* clamp to [0, length - 1]. */
icoord = lp_build_clamp(int_coord_bld, icoord, int_coord_bld->zero,
*/
static void
lp_build_sample_image_nearest(struct lp_build_sample_context *bld,
- unsigned sampler_unit,
LLVMValueRef size,
LLVMValueRef row_stride_vec,
LLVMValueRef img_stride_vec,
lp_build_name(z, "tex.z.wrapped");
}
}
- if (bld->static_texture_state->target == PIPE_TEXTURE_CUBE ||
- bld->static_texture_state->target == PIPE_TEXTURE_1D_ARRAY ||
- bld->static_texture_state->target == PIPE_TEXTURE_2D_ARRAY) {
- z = coords[2];
+ if (has_layer_coord(bld->static_texture_state->target)) {
+ if (bld->static_texture_state->target == PIPE_TEXTURE_CUBE_ARRAY) {
+ /* add cube layer to face */
+ z = lp_build_add(&bld->int_coord_bld, coords[2], coords[3]);
+ }
+ else {
+ z = coords[2];
+ }
lp_build_name(z, "tex.z.layer");
}
/*
* Get texture colors.
*/
- lp_build_sample_texel_soa(bld, sampler_unit,
+ lp_build_sample_texel_soa(bld,
width_vec, height_vec, depth_vec,
x, y, z,
row_stride_vec, img_stride_vec,
return lp_build_lerp(bld, weight1, val0, val1, 0);
}
+/*
+ * this is a bit excessive code for something OpenGL just recommends
+ * but does not require.
+ */
+#define ACCURATE_CUBE_CORNERS 1
+
/**
* Generate code to sample a mipmap level with linear filtering.
* If sampling a cube texture, r = cube face in [0,5].
*/
static void
lp_build_sample_image_linear(struct lp_build_sample_context *bld,
- unsigned sampler_unit,
+ boolean is_gather,
LLVMValueRef size,
LLVMValueRef linear_mask,
LLVMValueRef row_stride_vec,
const LLVMValueRef *offsets,
LLVMValueRef colors_out[4])
{
+ LLVMBuilderRef builder = bld->gallivm->builder;
+ struct lp_build_context *ivec_bld = &bld->int_coord_bld;
+ struct lp_build_context *coord_bld = &bld->coord_bld;
+ struct lp_build_context *texel_bld = &bld->texel_bld;
const unsigned dims = bld->dims;
LLVMValueRef width_vec;
LLVMValueRef height_vec;
LLVMValueRef flt_width_vec;
LLVMValueRef flt_height_vec;
LLVMValueRef flt_depth_vec;
- LLVMValueRef x0, y0 = NULL, z0 = NULL, x1, y1 = NULL, z1 = NULL;
+ LLVMValueRef fall_off[4], have_corners;
+ LLVMValueRef z1 = NULL;
+ LLVMValueRef z00 = NULL, z01 = NULL, z10 = NULL, z11 = NULL;
+ LLVMValueRef x00 = NULL, x01 = NULL, x10 = NULL, x11 = NULL;
+ LLVMValueRef y00 = NULL, y01 = NULL, y10 = NULL, y11 = NULL;
LLVMValueRef s_fpart, t_fpart = NULL, r_fpart = NULL;
+ LLVMValueRef xs[4], ys[4], zs[4];
LLVMValueRef neighbors[2][2][4];
- int chan;
+ int chan, texel_index;
+ boolean seamless_cube_filter, accurate_cube_corners;
+
+ seamless_cube_filter = (bld->static_texture_state->target == PIPE_TEXTURE_CUBE ||
+ bld->static_texture_state->target == PIPE_TEXTURE_CUBE_ARRAY) &&
+ bld->static_sampler_state->seamless_cube_map;
+ /*
+ * XXX I don't know how this is really supposed to work with gather. From GL
+ * spec wording (not gather specific) it sounds like the 4th missing texel
+ * should be an average of the other 3, hence for gather could return this.
+ * This is however NOT how the code here works, which just fixes up the
+ * weights used for filtering instead. And of course for gather there is
+ * no filter to tweak...
+ */
+ accurate_cube_corners = ACCURATE_CUBE_CORNERS && seamless_cube_filter &&
+ !is_gather;
lp_build_extract_image_sizes(bld,
&bld->int_size_bld,
/*
* Compute integer texcoords.
*/
- lp_build_sample_wrap_linear(bld, coords[0], width_vec,
- flt_width_vec, offsets[0],
- bld->static_texture_state->pot_width,
- bld->static_sampler_state->wrap_s,
- &x0, &x1, &s_fpart);
- lp_build_name(x0, "tex.x0.wrapped");
- lp_build_name(x1, "tex.x1.wrapped");
- if (dims >= 2) {
- lp_build_sample_wrap_linear(bld, coords[1], height_vec,
- flt_height_vec, offsets[1],
- bld->static_texture_state->pot_height,
- bld->static_sampler_state->wrap_t,
- &y0, &y1, &t_fpart);
- lp_build_name(y0, "tex.y0.wrapped");
- lp_build_name(y1, "tex.y1.wrapped");
+ if (!seamless_cube_filter) {
+ lp_build_sample_wrap_linear(bld, coords[0], width_vec,
+ flt_width_vec, offsets[0],
+ bld->static_texture_state->pot_width,
+ bld->static_sampler_state->wrap_s,
+ &x00, &x01, &s_fpart);
+ lp_build_name(x00, "tex.x0.wrapped");
+ lp_build_name(x01, "tex.x1.wrapped");
+ x10 = x00;
+ x11 = x01;
- if (dims == 3) {
- lp_build_sample_wrap_linear(bld, coords[2], depth_vec,
- flt_depth_vec, offsets[2],
- bld->static_texture_state->pot_depth,
- bld->static_sampler_state->wrap_r,
- &z0, &z1, &r_fpart);
- lp_build_name(z0, "tex.z0.wrapped");
- lp_build_name(z1, "tex.z1.wrapped");
+ if (dims >= 2) {
+ lp_build_sample_wrap_linear(bld, coords[1], height_vec,
+ flt_height_vec, offsets[1],
+ bld->static_texture_state->pot_height,
+ bld->static_sampler_state->wrap_t,
+ &y00, &y10, &t_fpart);
+ lp_build_name(y00, "tex.y0.wrapped");
+ lp_build_name(y10, "tex.y1.wrapped");
+ y01 = y00;
+ y11 = y10;
+
+ if (dims == 3) {
+ lp_build_sample_wrap_linear(bld, coords[2], depth_vec,
+ flt_depth_vec, offsets[2],
+ bld->static_texture_state->pot_depth,
+ bld->static_sampler_state->wrap_r,
+ &z00, &z1, &r_fpart);
+ z01 = z10 = z11 = z00;
+ lp_build_name(z00, "tex.z0.wrapped");
+ lp_build_name(z1, "tex.z1.wrapped");
+ }
+ }
+ if (has_layer_coord(bld->static_texture_state->target)) {
+ if (bld->static_texture_state->target == PIPE_TEXTURE_CUBE_ARRAY) {
+ /* add cube layer to face */
+ z00 = z01 = z10 = z11 = z1 =
+ lp_build_add(&bld->int_coord_bld, coords[2], coords[3]);
+ }
+ else {
+ z00 = z01 = z10 = z11 = z1 = coords[2]; /* cube face or layer */
+ }
+ lp_build_name(z00, "tex.z0.layer");
+ lp_build_name(z1, "tex.z1.layer");
}
}
- if (bld->static_texture_state->target == PIPE_TEXTURE_CUBE ||
- bld->static_texture_state->target == PIPE_TEXTURE_1D_ARRAY ||
- bld->static_texture_state->target == PIPE_TEXTURE_2D_ARRAY) {
- z0 = z1 = coords[2]; /* cube face or layer */
- lp_build_name(z0, "tex.z0.layer");
- lp_build_name(z1, "tex.z1.layer");
+ else {
+ struct lp_build_if_state edge_if;
+ LLVMTypeRef int1t;
+ LLVMValueRef new_faces[4], new_xcoords[4][2], new_ycoords[4][2];
+ LLVMValueRef coord, have_edge, have_corner;
+ LLVMValueRef fall_off_ym_notxm, fall_off_ym_notxp, fall_off_x, fall_off_y;
+ LLVMValueRef fall_off_yp_notxm, fall_off_yp_notxp;
+ LLVMValueRef x0, x1, y0, y1, y0_clamped, y1_clamped;
+ LLVMValueRef face = coords[2];
+ LLVMValueRef half = lp_build_const_vec(bld->gallivm, coord_bld->type, 0.5f);
+ LLVMValueRef length_minus_one = lp_build_sub(ivec_bld, width_vec, ivec_bld->one);
+ /* XXX drop height calcs. Could (should) do this without seamless filtering too */
+ height_vec = width_vec;
+ flt_height_vec = flt_width_vec;
+
+ /* XXX the overflow logic is actually sort of duplicated with trilinear,
+ * since an overflow in one mip should also have a corresponding overflow
+ * in another.
+ */
+ /* should always have normalized coords, and offsets are undefined */
+ assert(bld->static_sampler_state->normalized_coords);
+ coord = lp_build_mul(coord_bld, coords[0], flt_width_vec);
+ /* instead of clamp, build mask if overflowed */
+ coord = lp_build_sub(coord_bld, coord, half);
+ /* convert to int, compute lerp weight */
+ /* not ideal with AVX (and no AVX2) */
+ lp_build_ifloor_fract(coord_bld, coord, &x0, &s_fpart);
+ x1 = lp_build_add(ivec_bld, x0, ivec_bld->one);
+ coord = lp_build_mul(coord_bld, coords[1], flt_height_vec);
+ coord = lp_build_sub(coord_bld, coord, half);
+ lp_build_ifloor_fract(coord_bld, coord, &y0, &t_fpart);
+ y1 = lp_build_add(ivec_bld, y0, ivec_bld->one);
+
+ fall_off[0] = lp_build_cmp(ivec_bld, PIPE_FUNC_LESS, x0, ivec_bld->zero);
+ fall_off[1] = lp_build_cmp(ivec_bld, PIPE_FUNC_GREATER, x1, length_minus_one);
+ fall_off[2] = lp_build_cmp(ivec_bld, PIPE_FUNC_LESS, y0, ivec_bld->zero);
+ fall_off[3] = lp_build_cmp(ivec_bld, PIPE_FUNC_GREATER, y1, length_minus_one);
+
+ fall_off_x = lp_build_or(ivec_bld, fall_off[0], fall_off[1]);
+ fall_off_y = lp_build_or(ivec_bld, fall_off[2], fall_off[3]);
+ have_edge = lp_build_or(ivec_bld, fall_off_x, fall_off_y);
+ have_edge = lp_build_any_true_range(ivec_bld, ivec_bld->type.length, have_edge);
+
+ /* needed for accurate corner filtering branch later, rely on 0 init */
+ int1t = LLVMInt1TypeInContext(bld->gallivm->context);
+ have_corners = lp_build_alloca(bld->gallivm, int1t, "have_corner");
+
+ for (texel_index = 0; texel_index < 4; texel_index++) {
+ xs[texel_index] = lp_build_alloca(bld->gallivm, ivec_bld->vec_type, "xs");
+ ys[texel_index] = lp_build_alloca(bld->gallivm, ivec_bld->vec_type, "ys");
+ zs[texel_index] = lp_build_alloca(bld->gallivm, ivec_bld->vec_type, "zs");
+ }
+
+ lp_build_if(&edge_if, bld->gallivm, have_edge);
+
+ have_corner = lp_build_and(ivec_bld, fall_off_x, fall_off_y);
+ have_corner = lp_build_any_true_range(ivec_bld, ivec_bld->type.length, have_corner);
+ LLVMBuildStore(builder, have_corner, have_corners);
+
+ /*
+ * Need to feed clamped values here for cheap corner handling,
+ * but only for y coord (as when falling off both edges we only
+ * fall off the x one) - this should be sufficient.
+ */
+ y0_clamped = lp_build_max(ivec_bld, y0, ivec_bld->zero);
+ y1_clamped = lp_build_min(ivec_bld, y1, length_minus_one);
+
+ /*
+ * Get all possible new coords.
+ */
+ lp_build_cube_new_coords(ivec_bld, face,
+ x0, x1, y0_clamped, y1_clamped,
+ length_minus_one,
+ new_faces, new_xcoords, new_ycoords);
+
+ /* handle fall off x-, x+ direction */
+ /* determine new coords, face (not both fall_off vars can be true at same time) */
+ x00 = lp_build_select(ivec_bld, fall_off[0], new_xcoords[0][0], x0);
+ y00 = lp_build_select(ivec_bld, fall_off[0], new_ycoords[0][0], y0_clamped);
+ x10 = lp_build_select(ivec_bld, fall_off[0], new_xcoords[0][1], x0);
+ y10 = lp_build_select(ivec_bld, fall_off[0], new_ycoords[0][1], y1_clamped);
+ x01 = lp_build_select(ivec_bld, fall_off[1], new_xcoords[1][0], x1);
+ y01 = lp_build_select(ivec_bld, fall_off[1], new_ycoords[1][0], y0_clamped);
+ x11 = lp_build_select(ivec_bld, fall_off[1], new_xcoords[1][1], x1);
+ y11 = lp_build_select(ivec_bld, fall_off[1], new_ycoords[1][1], y1_clamped);
+
+ z00 = z10 = lp_build_select(ivec_bld, fall_off[0], new_faces[0], face);
+ z01 = z11 = lp_build_select(ivec_bld, fall_off[1], new_faces[1], face);
+
+ /* handle fall off y-, y+ direction */
+ /*
+ * Cheap corner logic: just hack up things so a texel doesn't fall
+ * off both sides (which means filter weights will be wrong but we'll only
+ * use valid texels in the filter).
+ * This means however (y) coords must additionally be clamped (see above).
+ * This corner handling should be fully OpenGL (but not d3d10) compliant.
+ */
+ fall_off_ym_notxm = lp_build_andnot(ivec_bld, fall_off[2], fall_off[0]);
+ fall_off_ym_notxp = lp_build_andnot(ivec_bld, fall_off[2], fall_off[1]);
+ fall_off_yp_notxm = lp_build_andnot(ivec_bld, fall_off[3], fall_off[0]);
+ fall_off_yp_notxp = lp_build_andnot(ivec_bld, fall_off[3], fall_off[1]);
+
+ x00 = lp_build_select(ivec_bld, fall_off_ym_notxm, new_xcoords[2][0], x00);
+ y00 = lp_build_select(ivec_bld, fall_off_ym_notxm, new_ycoords[2][0], y00);
+ x01 = lp_build_select(ivec_bld, fall_off_ym_notxp, new_xcoords[2][1], x01);
+ y01 = lp_build_select(ivec_bld, fall_off_ym_notxp, new_ycoords[2][1], y01);
+ x10 = lp_build_select(ivec_bld, fall_off_yp_notxm, new_xcoords[3][0], x10);
+ y10 = lp_build_select(ivec_bld, fall_off_yp_notxm, new_ycoords[3][0], y10);
+ x11 = lp_build_select(ivec_bld, fall_off_yp_notxp, new_xcoords[3][1], x11);
+ y11 = lp_build_select(ivec_bld, fall_off_yp_notxp, new_ycoords[3][1], y11);
+
+ z00 = lp_build_select(ivec_bld, fall_off_ym_notxm, new_faces[2], z00);
+ z01 = lp_build_select(ivec_bld, fall_off_ym_notxp, new_faces[2], z01);
+ z10 = lp_build_select(ivec_bld, fall_off_yp_notxm, new_faces[3], z10);
+ z11 = lp_build_select(ivec_bld, fall_off_yp_notxp, new_faces[3], z11);
+
+ if (bld->static_texture_state->target == PIPE_TEXTURE_CUBE_ARRAY) {
+ /* now can add cube layer to face (per sample) */
+ z00 = lp_build_add(ivec_bld, z00, coords[3]);
+ z01 = lp_build_add(ivec_bld, z01, coords[3]);
+ z10 = lp_build_add(ivec_bld, z10, coords[3]);
+ z11 = lp_build_add(ivec_bld, z11, coords[3]);
+ }
+
+ LLVMBuildStore(builder, x00, xs[0]);
+ LLVMBuildStore(builder, x01, xs[1]);
+ LLVMBuildStore(builder, x10, xs[2]);
+ LLVMBuildStore(builder, x11, xs[3]);
+ LLVMBuildStore(builder, y00, ys[0]);
+ LLVMBuildStore(builder, y01, ys[1]);
+ LLVMBuildStore(builder, y10, ys[2]);
+ LLVMBuildStore(builder, y11, ys[3]);
+ LLVMBuildStore(builder, z00, zs[0]);
+ LLVMBuildStore(builder, z01, zs[1]);
+ LLVMBuildStore(builder, z10, zs[2]);
+ LLVMBuildStore(builder, z11, zs[3]);
+
+ lp_build_else(&edge_if);
+
+ LLVMBuildStore(builder, x0, xs[0]);
+ LLVMBuildStore(builder, x1, xs[1]);
+ LLVMBuildStore(builder, x0, xs[2]);
+ LLVMBuildStore(builder, x1, xs[3]);
+ LLVMBuildStore(builder, y0, ys[0]);
+ LLVMBuildStore(builder, y0, ys[1]);
+ LLVMBuildStore(builder, y1, ys[2]);
+ LLVMBuildStore(builder, y1, ys[3]);
+ if (bld->static_texture_state->target == PIPE_TEXTURE_CUBE_ARRAY) {
+ LLVMValueRef cube_layer = lp_build_add(ivec_bld, face, coords[3]);
+ LLVMBuildStore(builder, cube_layer, zs[0]);
+ LLVMBuildStore(builder, cube_layer, zs[1]);
+ LLVMBuildStore(builder, cube_layer, zs[2]);
+ LLVMBuildStore(builder, cube_layer, zs[3]);
+ }
+ else {
+ LLVMBuildStore(builder, face, zs[0]);
+ LLVMBuildStore(builder, face, zs[1]);
+ LLVMBuildStore(builder, face, zs[2]);
+ LLVMBuildStore(builder, face, zs[3]);
+ }
+
+ lp_build_endif(&edge_if);
+
+ x00 = LLVMBuildLoad(builder, xs[0], "");
+ x01 = LLVMBuildLoad(builder, xs[1], "");
+ x10 = LLVMBuildLoad(builder, xs[2], "");
+ x11 = LLVMBuildLoad(builder, xs[3], "");
+ y00 = LLVMBuildLoad(builder, ys[0], "");
+ y01 = LLVMBuildLoad(builder, ys[1], "");
+ y10 = LLVMBuildLoad(builder, ys[2], "");
+ y11 = LLVMBuildLoad(builder, ys[3], "");
+ z00 = LLVMBuildLoad(builder, zs[0], "");
+ z01 = LLVMBuildLoad(builder, zs[1], "");
+ z10 = LLVMBuildLoad(builder, zs[2], "");
+ z11 = LLVMBuildLoad(builder, zs[3], "");
}
if (linear_mask) {
/*
- * Whack filter weights into place. Whatever pixel had more weight is
+ * Whack filter weights into place. Whatever texel had more weight is
* the one which should have been selected by nearest filtering hence
* just use 100% weight for it.
*/
* Get texture colors.
*/
/* get x0/x1 texels */
- lp_build_sample_texel_soa(bld, sampler_unit,
+ lp_build_sample_texel_soa(bld,
width_vec, height_vec, depth_vec,
- x0, y0, z0,
+ x00, y00, z00,
row_stride_vec, img_stride_vec,
data_ptr, mipoffsets, neighbors[0][0]);
- lp_build_sample_texel_soa(bld, sampler_unit,
+ lp_build_sample_texel_soa(bld,
width_vec, height_vec, depth_vec,
- x1, y0, z0,
+ x01, y01, z01,
row_stride_vec, img_stride_vec,
data_ptr, mipoffsets, neighbors[0][1]);
if (dims == 1) {
+ assert(!is_gather);
if (bld->static_sampler_state->compare_mode == PIPE_TEX_COMPARE_NONE) {
/* Interpolate two samples from 1D image to produce one color */
for (chan = 0; chan < 4; chan++) {
- colors_out[chan] = lp_build_lerp(&bld->texel_bld, s_fpart,
+ colors_out[chan] = lp_build_lerp(texel_bld, s_fpart,
neighbors[0][0][chan],
neighbors[0][1][chan],
0);
cmpval0 = lp_build_sample_comparefunc(bld, coords[4], neighbors[0][0][0]);
cmpval1 = lp_build_sample_comparefunc(bld, coords[4], neighbors[0][1][0]);
/* simplified lerp, AND mask with weight and add */
- colors_out[0] = lp_build_masklerp(&bld->texel_bld, s_fpart,
+ colors_out[0] = lp_build_masklerp(texel_bld, s_fpart,
cmpval0, cmpval1);
colors_out[1] = colors_out[2] = colors_out[3] = colors_out[0];
}
}
else {
/* 2D/3D texture */
- LLVMValueRef colors0[4];
+ struct lp_build_if_state corner_if;
+ LLVMValueRef colors0[4], colorss[4];
/* get x0/x1 texels at y1 */
- lp_build_sample_texel_soa(bld, sampler_unit,
+ lp_build_sample_texel_soa(bld,
width_vec, height_vec, depth_vec,
- x0, y1, z0,
+ x10, y10, z10,
row_stride_vec, img_stride_vec,
data_ptr, mipoffsets, neighbors[1][0]);
- lp_build_sample_texel_soa(bld, sampler_unit,
+ lp_build_sample_texel_soa(bld,
width_vec, height_vec, depth_vec,
- x1, y1, z0,
+ x11, y11, z11,
row_stride_vec, img_stride_vec,
data_ptr, mipoffsets, neighbors[1][1]);
+ /*
+ * To avoid having to duplicate linear_mask / fetch code use
+ * another branch (with corner condition though edge would work
+ * as well) here.
+ */
+ if (accurate_cube_corners) {
+ LLVMValueRef w00, w01, w10, w11, wx0, wy0;
+ LLVMValueRef c_weight, c00, c01, c10, c11;
+ LLVMValueRef have_corner, one_third, tmp;
+
+ colorss[0] = lp_build_alloca(bld->gallivm, coord_bld->vec_type, "cs");
+ colorss[1] = lp_build_alloca(bld->gallivm, coord_bld->vec_type, "cs");
+ colorss[2] = lp_build_alloca(bld->gallivm, coord_bld->vec_type, "cs");
+ colorss[3] = lp_build_alloca(bld->gallivm, coord_bld->vec_type, "cs");
+
+ have_corner = LLVMBuildLoad(builder, have_corners, "");
+
+ lp_build_if(&corner_if, bld->gallivm, have_corner);
+
+ /*
+ * we can't use standard 2d lerp as we need per-element weight
+ * in case of corners, so just calculate bilinear result as
+ * w00*s00 + w01*s01 + w10*s10 + w11*s11.
+ * (This is actually less work than using 2d lerp, 7 vs. 9 instructions,
+ * however calculating the weights needs another 6, so actually probably
+ * not slower than 2d lerp only for 4 channels as weights only need
+ * to be calculated once - of course fixing the weights has additional cost.)
+ */
+ wx0 = lp_build_sub(coord_bld, coord_bld->one, s_fpart);
+ wy0 = lp_build_sub(coord_bld, coord_bld->one, t_fpart);
+ w00 = lp_build_mul(coord_bld, wx0, wy0);
+ w01 = lp_build_mul(coord_bld, s_fpart, wy0);
+ w10 = lp_build_mul(coord_bld, wx0, t_fpart);
+ w11 = lp_build_mul(coord_bld, s_fpart, t_fpart);
+
+ /* find corner weight */
+ c00 = lp_build_and(ivec_bld, fall_off[0], fall_off[2]);
+ c_weight = lp_build_select(coord_bld, c00, w00, coord_bld->zero);
+ c01 = lp_build_and(ivec_bld, fall_off[1], fall_off[2]);
+ c_weight = lp_build_select(coord_bld, c01, w01, c_weight);
+ c10 = lp_build_and(ivec_bld, fall_off[0], fall_off[3]);
+ c_weight = lp_build_select(coord_bld, c10, w10, c_weight);
+ c11 = lp_build_and(ivec_bld, fall_off[1], fall_off[3]);
+ c_weight = lp_build_select(coord_bld, c11, w11, c_weight);
+
+ /*
+ * add 1/3 of the corner weight to each of the 3 other samples
+ * and null out corner weight
+ */
+ one_third = lp_build_const_vec(bld->gallivm, coord_bld->type, 1.0f/3.0f);
+ c_weight = lp_build_mul(coord_bld, c_weight, one_third);
+ w00 = lp_build_add(coord_bld, w00, c_weight);
+ c00 = LLVMBuildBitCast(builder, c00, coord_bld->vec_type, "");
+ w00 = lp_build_andnot(coord_bld, w00, c00);
+ w01 = lp_build_add(coord_bld, w01, c_weight);
+ c01 = LLVMBuildBitCast(builder, c01, coord_bld->vec_type, "");
+ w01 = lp_build_andnot(coord_bld, w01, c01);
+ w10 = lp_build_add(coord_bld, w10, c_weight);
+ c10 = LLVMBuildBitCast(builder, c10, coord_bld->vec_type, "");
+ w10 = lp_build_andnot(coord_bld, w10, c10);
+ w11 = lp_build_add(coord_bld, w11, c_weight);
+ c11 = LLVMBuildBitCast(builder, c11, coord_bld->vec_type, "");
+ w11 = lp_build_andnot(coord_bld, w11, c11);
+
+ if (bld->static_sampler_state->compare_mode == PIPE_TEX_COMPARE_NONE) {
+ for (chan = 0; chan < 4; chan++) {
+ colors0[chan] = lp_build_mul(coord_bld, w00, neighbors[0][0][chan]);
+ tmp = lp_build_mul(coord_bld, w01, neighbors[0][1][chan]);
+ colors0[chan] = lp_build_add(coord_bld, tmp, colors0[chan]);
+ tmp = lp_build_mul(coord_bld, w10, neighbors[1][0][chan]);
+ colors0[chan] = lp_build_add(coord_bld, tmp, colors0[chan]);
+ tmp = lp_build_mul(coord_bld, w11, neighbors[1][1][chan]);
+ colors0[chan] = lp_build_add(coord_bld, tmp, colors0[chan]);
+ }
+ }
+ else {
+ LLVMValueRef cmpval00, cmpval01, cmpval10, cmpval11;
+ cmpval00 = lp_build_sample_comparefunc(bld, coords[4], neighbors[0][0][0]);
+ cmpval01 = lp_build_sample_comparefunc(bld, coords[4], neighbors[0][1][0]);
+ cmpval10 = lp_build_sample_comparefunc(bld, coords[4], neighbors[1][0][0]);
+ cmpval11 = lp_build_sample_comparefunc(bld, coords[4], neighbors[1][1][0]);
+ /* inputs to interpolation are just masks so just add masked weights together */
+ cmpval00 = LLVMBuildBitCast(builder, cmpval00, coord_bld->vec_type, "");
+ cmpval01 = LLVMBuildBitCast(builder, cmpval01, coord_bld->vec_type, "");
+ cmpval10 = LLVMBuildBitCast(builder, cmpval10, coord_bld->vec_type, "");
+ cmpval11 = LLVMBuildBitCast(builder, cmpval11, coord_bld->vec_type, "");
+ colors0[0] = lp_build_and(coord_bld, w00, cmpval00);
+ tmp = lp_build_and(coord_bld, w01, cmpval01);
+ colors0[0] = lp_build_add(coord_bld, tmp, colors0[0]);
+ tmp = lp_build_and(coord_bld, w10, cmpval10);
+ colors0[0] = lp_build_add(coord_bld, tmp, colors0[0]);
+ tmp = lp_build_and(coord_bld, w11, cmpval11);
+ colors0[0] = lp_build_add(coord_bld, tmp, colors0[0]);
+ colors0[1] = colors0[2] = colors0[3] = colors0[0];
+ }
+
+ LLVMBuildStore(builder, colors0[0], colorss[0]);
+ LLVMBuildStore(builder, colors0[1], colorss[1]);
+ LLVMBuildStore(builder, colors0[2], colorss[2]);
+ LLVMBuildStore(builder, colors0[3], colorss[3]);
+
+ lp_build_else(&corner_if);
+ }
+
if (bld->static_sampler_state->compare_mode == PIPE_TEX_COMPARE_NONE) {
- /* Bilinear interpolate the four samples from the 2D image / 3D slice */
- for (chan = 0; chan < 4; chan++) {
- colors0[chan] = lp_build_lerp_2d(&bld->texel_bld,
- s_fpart, t_fpart,
- neighbors[0][0][chan],
- neighbors[0][1][chan],
- neighbors[1][0][chan],
- neighbors[1][1][chan],
- 0);
+ if (is_gather) {
+ /*
+ * Just assign the red channel (no component selection yet).
+ * This is a bit hackish, we usually do the swizzle at the
+ * end of sampling (much less values to swizzle), but this
+ * obviously cannot work when using gather.
+ */
+ unsigned chan_swiz = bld->static_texture_state->swizzle_r;
+ colors0[0] = lp_build_swizzle_soa_channel(texel_bld,
+ neighbors[1][0],
+ chan_swiz);
+ colors0[1] = lp_build_swizzle_soa_channel(texel_bld,
+ neighbors[1][1],
+ chan_swiz);
+ colors0[2] = lp_build_swizzle_soa_channel(texel_bld,
+ neighbors[0][1],
+ chan_swiz);
+ colors0[3] = lp_build_swizzle_soa_channel(texel_bld,
+ neighbors[0][0],
+ chan_swiz);
+ }
+ else {
+ /* Bilinear interpolate the four samples from the 2D image / 3D slice */
+ for (chan = 0; chan < 4; chan++) {
+ colors0[chan] = lp_build_lerp_2d(texel_bld,
+ s_fpart, t_fpart,
+ neighbors[0][0][chan],
+ neighbors[0][1][chan],
+ neighbors[1][0][chan],
+ neighbors[1][1][chan],
+ 0);
+ }
}
}
else {
cmpval01 = lp_build_sample_comparefunc(bld, coords[4], neighbors[0][1][0]);
cmpval10 = lp_build_sample_comparefunc(bld, coords[4], neighbors[1][0][0]);
cmpval11 = lp_build_sample_comparefunc(bld, coords[4], neighbors[1][1][0]);
- colors0[0] = lp_build_masklerp2d(&bld->texel_bld, s_fpart, t_fpart,
- cmpval00, cmpval01, cmpval10, cmpval11);
- colors0[1] = colors0[2] = colors0[3] = colors0[0];
+
+ if (is_gather) {
+ /* more hacks for swizzling, should be X, ONE or ZERO... */
+ unsigned chan_swiz = bld->static_texture_state->swizzle_r;
+ if (chan_swiz <= PIPE_SWIZZLE_ALPHA) {
+ colors0[0] = lp_build_select(texel_bld, cmpval10,
+ texel_bld->one, texel_bld->zero);
+ colors0[1] = lp_build_select(texel_bld, cmpval11,
+ texel_bld->one, texel_bld->zero);
+ colors0[2] = lp_build_select(texel_bld, cmpval01,
+ texel_bld->one, texel_bld->zero);
+ colors0[3] = lp_build_select(texel_bld, cmpval00,
+ texel_bld->one, texel_bld->zero);
+ }
+ else if (chan_swiz == PIPE_SWIZZLE_ZERO) {
+ colors0[0] = colors0[1] = colors0[2] = colors0[3] =
+ texel_bld->zero;
+ }
+ else {
+ colors0[0] = colors0[1] = colors0[2] = colors0[3] =
+ texel_bld->one;
+ }
+ }
+ else {
+ colors0[0] = lp_build_masklerp2d(texel_bld, s_fpart, t_fpart,
+ cmpval00, cmpval01, cmpval10, cmpval11);
+ colors0[1] = colors0[2] = colors0[3] = colors0[0];
+ }
+ }
+
+ if (accurate_cube_corners) {
+ LLVMBuildStore(builder, colors0[0], colorss[0]);
+ LLVMBuildStore(builder, colors0[1], colorss[1]);
+ LLVMBuildStore(builder, colors0[2], colorss[2]);
+ LLVMBuildStore(builder, colors0[3], colorss[3]);
+
+ lp_build_endif(&corner_if);
+
+ colors0[0] = LLVMBuildLoad(builder, colorss[0], "");
+ colors0[1] = LLVMBuildLoad(builder, colorss[1], "");
+ colors0[2] = LLVMBuildLoad(builder, colorss[2], "");
+ colors0[3] = LLVMBuildLoad(builder, colorss[3], "");
}
if (dims == 3) {
LLVMValueRef neighbors1[2][2][4];
LLVMValueRef colors1[4];
+ assert(!is_gather);
+
/* get x0/x1/y0/y1 texels at z1 */
- lp_build_sample_texel_soa(bld, sampler_unit,
+ lp_build_sample_texel_soa(bld,
width_vec, height_vec, depth_vec,
- x0, y0, z1,
+ x00, y00, z1,
row_stride_vec, img_stride_vec,
data_ptr, mipoffsets, neighbors1[0][0]);
- lp_build_sample_texel_soa(bld, sampler_unit,
+ lp_build_sample_texel_soa(bld,
width_vec, height_vec, depth_vec,
- x1, y0, z1,
+ x01, y01, z1,
row_stride_vec, img_stride_vec,
data_ptr, mipoffsets, neighbors1[0][1]);
- lp_build_sample_texel_soa(bld, sampler_unit,
+ lp_build_sample_texel_soa(bld,
width_vec, height_vec, depth_vec,
- x0, y1, z1,
+ x10, y10, z1,
row_stride_vec, img_stride_vec,
data_ptr, mipoffsets, neighbors1[1][0]);
- lp_build_sample_texel_soa(bld, sampler_unit,
+ lp_build_sample_texel_soa(bld,
width_vec, height_vec, depth_vec,
- x1, y1, z1,
+ x11, y11, z1,
row_stride_vec, img_stride_vec,
data_ptr, mipoffsets, neighbors1[1][1]);
if (bld->static_sampler_state->compare_mode == PIPE_TEX_COMPARE_NONE) {
/* Bilinear interpolate the four samples from the second Z slice */
for (chan = 0; chan < 4; chan++) {
- colors1[chan] = lp_build_lerp_2d(&bld->texel_bld,
+ colors1[chan] = lp_build_lerp_2d(texel_bld,
s_fpart, t_fpart,
neighbors1[0][0][chan],
neighbors1[0][1][chan],
}
/* Linearly interpolate the two samples from the two 3D slices */
for (chan = 0; chan < 4; chan++) {
- colors_out[chan] = lp_build_lerp(&bld->texel_bld,
+ colors_out[chan] = lp_build_lerp(texel_bld,
r_fpart,
colors0[chan], colors1[chan],
0);
cmpval01 = lp_build_sample_comparefunc(bld, coords[4], neighbors[0][1][0]);
cmpval10 = lp_build_sample_comparefunc(bld, coords[4], neighbors[1][0][0]);
cmpval11 = lp_build_sample_comparefunc(bld, coords[4], neighbors[1][1][0]);
- colors1[0] = lp_build_masklerp2d(&bld->texel_bld, s_fpart, t_fpart,
+ colors1[0] = lp_build_masklerp2d(texel_bld, s_fpart, t_fpart,
cmpval00, cmpval01, cmpval10, cmpval11);
/* Linearly interpolate the two samples from the two 3D slices */
- colors_out[0] = lp_build_lerp(&bld->texel_bld,
- r_fpart,
- colors0[0], colors1[0],
- 0);
+ colors_out[0] = lp_build_lerp(texel_bld,
+ r_fpart,
+ colors0[0], colors1[0],
+ 0);
colors_out[1] = colors_out[2] = colors_out[3] = colors_out[0];
}
}
*/
static void
lp_build_sample_mipmap(struct lp_build_sample_context *bld,
- unsigned sampler_unit,
unsigned img_filter,
unsigned mip_filter,
+ boolean is_gather,
LLVMValueRef *coords,
const LLVMValueRef *offsets,
LLVMValueRef ilevel0,
mipoff0 = lp_build_get_mip_offsets(bld, ilevel0);
}
if (img_filter == PIPE_TEX_FILTER_NEAREST) {
- lp_build_sample_image_nearest(bld, sampler_unit,
- size0,
+ lp_build_sample_image_nearest(bld, size0,
row_stride0_vec, img_stride0_vec,
data_ptr0, mipoff0, coords, offsets,
colors0);
}
else {
assert(img_filter == PIPE_TEX_FILTER_LINEAR);
- lp_build_sample_image_linear(bld, sampler_unit,
- size0, NULL,
+ lp_build_sample_image_linear(bld, is_gather, size0, NULL,
row_stride0_vec, img_stride0_vec,
data_ptr0, mipoff0, coords, offsets,
colors0);
mipoff1 = lp_build_get_mip_offsets(bld, ilevel1);
}
if (img_filter == PIPE_TEX_FILTER_NEAREST) {
- lp_build_sample_image_nearest(bld, sampler_unit,
- size1,
+ lp_build_sample_image_nearest(bld, size1,
row_stride1_vec, img_stride1_vec,
data_ptr1, mipoff1, coords, offsets,
colors1);
}
else {
- lp_build_sample_image_linear(bld, sampler_unit,
- size1, NULL,
+ lp_build_sample_image_linear(bld, FALSE, size1, NULL,
row_stride1_vec, img_stride1_vec,
data_ptr1, mipoff1, coords, offsets,
colors1);
*/
static void
lp_build_sample_mipmap_both(struct lp_build_sample_context *bld,
- unsigned sampler_unit,
LLVMValueRef linear_mask,
unsigned mip_filter,
LLVMValueRef *coords,
mipoff0 = lp_build_get_mip_offsets(bld, ilevel0);
}
- lp_build_sample_image_linear(bld, sampler_unit,
- size0, linear_mask,
+ lp_build_sample_image_linear(bld, FALSE, size0, linear_mask,
row_stride0_vec, img_stride0_vec,
data_ptr0, mipoff0, coords, offsets,
colors0);
mipoff1 = lp_build_get_mip_offsets(bld, ilevel1);
}
- lp_build_sample_image_linear(bld, sampler_unit,
- size1, linear_mask,
+ lp_build_sample_image_linear(bld, FALSE, size1, linear_mask,
row_stride1_vec, img_stride1_vec,
data_ptr1, mipoff1, coords, offsets,
colors1);
static LLVMValueRef
lp_build_layer_coord(struct lp_build_sample_context *bld,
unsigned texture_unit,
+ boolean is_cube_array,
LLVMValueRef layer,
LLVMValueRef *out_of_bounds)
{
LLVMValueRef num_layers;
struct lp_build_context *int_coord_bld = &bld->int_coord_bld;
- num_layers = bld->dynamic_state->depth(bld->dynamic_state,
- bld->gallivm, texture_unit);
+ num_layers = bld->dynamic_state->depth(bld->dynamic_state, bld->gallivm,
+ bld->context_ptr, texture_unit);
if (out_of_bounds) {
LLVMValueRef out1, out;
+ assert(!is_cube_array);
num_layers = lp_build_broadcast_scalar(int_coord_bld, num_layers);
out = lp_build_cmp(int_coord_bld, PIPE_FUNC_LESS, layer, int_coord_bld->zero);
out1 = lp_build_cmp(int_coord_bld, PIPE_FUNC_GEQUAL, layer, num_layers);
}
else {
LLVMValueRef maxlayer;
- maxlayer = lp_build_sub(&bld->int_bld, num_layers, bld->int_bld.one);
+ LLVMValueRef s = is_cube_array ? lp_build_const_int32(bld->gallivm, 6) :
+ bld->int_bld.one;
+ maxlayer = lp_build_sub(&bld->int_bld, num_layers, s);
maxlayer = lp_build_broadcast_scalar(int_coord_bld, maxlayer);
return lp_build_clamp(int_coord_bld, layer, int_coord_bld->zero, maxlayer);
}
const unsigned target = bld->static_texture_state->target;
LLVMValueRef first_level, cube_rho = NULL;
LLVMValueRef lod_ipart = NULL;
+ struct lp_derivatives cube_derivs;
/*
printf("%s mip %d min %d mag %d\n", __FUNCTION__,
* Choose cube face, recompute texcoords for the chosen face and
* compute rho here too (as it requires transform of derivatives).
*/
- if (target == PIPE_TEXTURE_CUBE) {
+ if (target == PIPE_TEXTURE_CUBE || target == PIPE_TEXTURE_CUBE_ARRAY) {
boolean need_derivs;
need_derivs = ((min_filter != mag_filter ||
mip_filter != PIPE_TEX_MIPFILTER_NONE) &&
!bld->static_sampler_state->min_max_lod_equal &&
!explicit_lod);
- lp_build_cube_lookup(bld, coords, derivs, &cube_rho, need_derivs);
+ lp_build_cube_lookup(bld, coords, derivs, &cube_rho, &cube_derivs, need_derivs);
+ derivs = &cube_derivs;
+ if (target == PIPE_TEXTURE_CUBE_ARRAY) {
+ /* calculate cube layer coord now */
+ LLVMValueRef layer = lp_build_iround(&bld->coord_bld, coords[3]);
+ LLVMValueRef six = lp_build_const_int_vec(bld->gallivm, bld->int_coord_type, 6);
+ layer = lp_build_mul(&bld->int_coord_bld, layer, six);
+ coords[3] = lp_build_layer_coord(bld, texture_index, TRUE, layer, NULL);
+ /* because of seamless filtering can't add it to face (coords[2]) here. */
+ }
}
else if (target == PIPE_TEXTURE_1D_ARRAY ||
target == PIPE_TEXTURE_2D_ARRAY) {
coords[2] = lp_build_iround(&bld->coord_bld, coords[2]);
- coords[2] = lp_build_layer_coord(bld, texture_index, coords[2], NULL);
+ coords[2] = lp_build_layer_coord(bld, texture_index, FALSE, coords[2], NULL);
}
if (bld->static_sampler_state->compare_mode != PIPE_TEX_COMPARE_NONE) {
/* fall-through */
case PIPE_TEX_MIPFILTER_NONE:
/* always use mip level 0 */
- if (HAVE_LLVM == 0x0207 && target == PIPE_TEXTURE_CUBE) {
- /* XXX this is a work-around for an apparent bug in LLVM 2.7.
- * We should be able to set ilevel0 = const(0) but that causes
- * bad x86 code to be emitted.
- */
- assert(lod_ipart);
- lp_build_nearest_mip_level(bld, texture_index, lod_ipart, ilevel0, NULL);
- }
- else {
- first_level = bld->dynamic_state->first_level(bld->dynamic_state,
- bld->gallivm, texture_index);
- first_level = lp_build_broadcast_scalar(&bld->leveli_bld, first_level);
- *ilevel0 = first_level;
- }
+ first_level = bld->dynamic_state->first_level(bld->dynamic_state,
+ bld->gallivm, bld->context_ptr,
+ texture_index);
+ first_level = lp_build_broadcast_scalar(&bld->leveli_bld, first_level);
+ *ilevel0 = first_level;
break;
case PIPE_TEX_MIPFILTER_NEAREST:
assert(lod_ipart);
struct gallivm_state *gallivm = bld->gallivm;
LLVMBuilderRef builder = gallivm->builder;
LLVMValueRef border_color_ptr =
- bld->dynamic_state->border_color(bld->dynamic_state,
- gallivm, sampler_unit);
+ bld->dynamic_state->border_color(bld->dynamic_state, gallivm,
+ bld->context_ptr, sampler_unit);
LLVMValueRef border_color;
const struct util_format_description *format_desc = bld->format_desc;
struct lp_type vec4_type = bld->texel_type;
LLVMPointerType(vec4_bld.vec_type, 0), "");
border_color = LLVMBuildLoad(builder, border_color_ptr, "");
/* we don't have aligned type in the dynamic state unfortunately */
- lp_set_load_alignment(border_color, 4);
+ LLVMSetAlignment(border_color, 4);
/*
* Instead of having some incredibly complex logic which will try to figure out
static void
lp_build_sample_general(struct lp_build_sample_context *bld,
unsigned sampler_unit,
+ boolean is_gather,
LLVMValueRef *coords,
const LLVMValueRef *offsets,
LLVMValueRef lod_positive,
if (min_filter == mag_filter) {
/* no need to distinguish between minification and magnification */
- lp_build_sample_mipmap(bld, sampler_unit,
- min_filter, mip_filter,
+ lp_build_sample_mipmap(bld, min_filter, mip_filter,
+ is_gather,
coords, offsets,
ilevel0, ilevel1, lod_fpart,
texels);
lp_build_if(&if_ctx, bld->gallivm, lod_positive);
{
/* Use the minification filter */
- lp_build_sample_mipmap(bld, sampler_unit,
- min_filter, mip_filter,
+ lp_build_sample_mipmap(bld, min_filter, mip_filter, FALSE,
coords, offsets,
ilevel0, ilevel1, lod_fpart,
texels);
lp_build_else(&if_ctx);
{
/* Use the magnification filter */
- lp_build_sample_mipmap(bld, sampler_unit,
- mag_filter, PIPE_TEX_MIPFILTER_NONE,
+ lp_build_sample_mipmap(bld, mag_filter, PIPE_TEX_MIPFILTER_NONE,
+ FALSE,
coords, offsets,
ilevel0, NULL, NULL,
texels);
* aren't all that complicated so just always run a combined path
* if at least some pixels require linear.
*/
- lp_build_sample_mipmap_both(bld, sampler_unit,
- linear_mask, mip_filter,
+ lp_build_sample_mipmap_both(bld, linear_mask, mip_filter,
coords, offsets,
ilevel0, ilevel1,
lod_fpart, lod_positive,
* All pixels require just nearest filtering, which is way
* cheaper than linear, hence do a separate path for that.
*/
- lp_build_sample_mipmap(bld, sampler_unit,
- PIPE_TEX_FILTER_NEAREST, mip_filter_for_nearest,
+ lp_build_sample_mipmap(bld, PIPE_TEX_FILTER_NEAREST, FALSE,
+ mip_filter_for_nearest,
coords, offsets,
ilevel0, ilevel1, lod_fpart,
texels);
else {
assert(bld->num_mips == 1);
if (bld->static_texture_state->target != PIPE_BUFFER) {
- ilevel = bld->dynamic_state->first_level(bld->dynamic_state,
- bld->gallivm, texture_unit);
+ ilevel = bld->dynamic_state->first_level(bld->dynamic_state, bld->gallivm,
+ bld->context_ptr, texture_unit);
}
else {
ilevel = lp_build_const_int32(bld->gallivm, 0);
if (target == PIPE_TEXTURE_1D_ARRAY ||
target == PIPE_TEXTURE_2D_ARRAY) {
if (out_of_bound_ret_zero) {
- z = lp_build_layer_coord(bld, texture_unit, z, &out1);
+ z = lp_build_layer_coord(bld, texture_unit, FALSE, z, &out1);
out_of_bounds = lp_build_or(int_coord_bld, out_of_bounds, out1);
}
else {
- z = lp_build_layer_coord(bld, texture_unit, z, NULL);
+ z = lp_build_layer_coord(bld, texture_unit, FALSE, z, NULL);
}
}
bld->texel_type,
bld->base_ptr, offset,
i, j,
+ bld->cache,
colors_out);
if (out_of_bound_ret_zero) {
/**
- * Build texture sampling code.
+ * Build the actual texture sampling code.
* 'texel' will return a vector of four LLVMValueRefs corresponding to
* R, G, B, A.
* \param type vector float type to use for coords, etc.
- * \param is_fetch if this is a texel fetch instruction.
+ * \param sample_key
* \param derivs partial derivatives of (s,t,r,q) with respect to x and y
*/
-void
-lp_build_sample_soa(struct gallivm_state *gallivm,
- const struct lp_static_texture_state *static_texture_state,
- const struct lp_static_sampler_state *static_sampler_state,
- struct lp_sampler_dynamic_state *dynamic_state,
- struct lp_type type,
- boolean is_fetch,
- unsigned texture_index,
- unsigned sampler_index,
- const LLVMValueRef *coords,
- const LLVMValueRef *offsets,
- const struct lp_derivatives *derivs, /* optional */
- LLVMValueRef lod_bias, /* optional */
- LLVMValueRef explicit_lod, /* optional */
- enum lp_sampler_lod_property lod_property,
- LLVMValueRef texel_out[4])
+static void
+lp_build_sample_soa_code(struct gallivm_state *gallivm,
+ const struct lp_static_texture_state *static_texture_state,
+ const struct lp_static_sampler_state *static_sampler_state,
+ struct lp_sampler_dynamic_state *dynamic_state,
+ struct lp_type type,
+ unsigned sample_key,
+ unsigned texture_index,
+ unsigned sampler_index,
+ LLVMValueRef context_ptr,
+ LLVMValueRef thread_data_ptr,
+ const LLVMValueRef *coords,
+ const LLVMValueRef *offsets,
+ const struct lp_derivatives *derivs, /* optional */
+ LLVMValueRef lod, /* optional */
+ LLVMValueRef texel_out[4])
{
unsigned target = static_texture_state->target;
unsigned dims = texture_dims(target);
LLVMTypeRef i32t = LLVMInt32TypeInContext(gallivm->context);
LLVMBuilderRef builder = gallivm->builder;
LLVMValueRef tex_width, newcoords[5];
+ enum lp_sampler_lod_property lod_property;
+ enum lp_sampler_lod_control lod_control;
+ enum lp_sampler_op_type op_type;
+ LLVMValueRef lod_bias = NULL;
+ LLVMValueRef explicit_lod = NULL;
+ boolean op_is_tex;
if (0) {
enum pipe_format fmt = static_texture_state->format;
debug_printf("Sample from %s\n", util_format_name(fmt));
}
+ lod_property = (sample_key & LP_SAMPLER_LOD_PROPERTY_MASK) >>
+ LP_SAMPLER_LOD_PROPERTY_SHIFT;
+ lod_control = (sample_key & LP_SAMPLER_LOD_CONTROL_MASK) >>
+ LP_SAMPLER_LOD_CONTROL_SHIFT;
+ op_type = (sample_key & LP_SAMPLER_OP_TYPE_MASK) >>
+ LP_SAMPLER_OP_TYPE_SHIFT;
+
+ op_is_tex = op_type == LP_SAMPLER_OP_TEXTURE;
+
+ if (lod_control == LP_SAMPLER_LOD_BIAS) {
+ lod_bias = lod;
+ assert(lod);
+ assert(derivs == NULL);
+ }
+ else if (lod_control == LP_SAMPLER_LOD_EXPLICIT) {
+ explicit_lod = lod;
+ assert(lod);
+ assert(derivs == NULL);
+ }
+ else if (lod_control == LP_SAMPLER_LOD_DERIVATIVES) {
+ assert(derivs);
+ assert(lod == NULL);
+ }
+ else {
+ assert(derivs == NULL);
+ assert(lod == NULL);
+ }
+
+ if (static_texture_state->format == PIPE_FORMAT_NONE) {
+ /*
+ * If there's nothing bound, format is NONE, and we must return
+ * all zero as mandated by d3d10 in this case.
+ */
+ unsigned chan;
+ LLVMValueRef zero = lp_build_zero(gallivm, type);
+ for (chan = 0; chan < 4; chan++) {
+ texel_out[chan] = zero;
+ }
+ return;
+ }
+
assert(type.floating);
/* Setup our build context */
memset(&bld, 0, sizeof bld);
bld.gallivm = gallivm;
+ bld.context_ptr = context_ptr;
bld.static_sampler_state = &derived_sampler_state;
bld.static_texture_state = static_texture_state;
bld.dynamic_state = dynamic_state;
} else {
derived_sampler_state.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
}
+ if (op_type == LP_SAMPLER_OP_GATHER) {
+ /*
+ * gather4 is exactly like GL_LINEAR filtering but in the end skipping
+ * the actual filtering. Using mostly the same paths, so cube face
+ * selection, coord wrapping etc. all naturally uses the same code.
+ */
+ derived_sampler_state.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
+ derived_sampler_state.min_img_filter = PIPE_TEX_FILTER_LINEAR;
+ derived_sampler_state.mag_img_filter = PIPE_TEX_FILTER_LINEAR;
+ }
mip_filter = derived_sampler_state.min_mip_filter;
if (0) {
debug_printf(" .min_mip_filter = %u\n", derived_sampler_state.min_mip_filter);
}
- min_img_filter = static_sampler_state->min_img_filter;
- mag_img_filter = static_sampler_state->mag_img_filter;
+ if (static_texture_state->target == PIPE_TEXTURE_CUBE ||
+ static_texture_state->target == PIPE_TEXTURE_CUBE_ARRAY)
+ {
+ /*
+ * Seamless filtering ignores wrap modes.
+ * Setting to CLAMP_TO_EDGE is correct for nearest filtering, for
+ * bilinear it's not correct but way better than using for instance repeat.
+ * Note we even set this for non-seamless. Technically GL allows any wrap
+ * mode, which made sense when supporting true borders (can get seamless
+ * effect with border and CLAMP_TO_BORDER), but gallium doesn't support
+ * borders and d3d9 requires wrap modes to be ignored and it's a pain to fix
+ * up the sampler state (as it makes it texture dependent).
+ */
+ derived_sampler_state.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+ derived_sampler_state.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+ }
+ /*
+ * We could force CLAMP to CLAMP_TO_EDGE here if min/mag filter is nearest,
+ * so AoS path could be used. Not sure it's worth the trouble...
+ */
+
+ min_img_filter = derived_sampler_state.min_img_filter;
+ mag_img_filter = derived_sampler_state.mag_img_filter;
/*
* avoided like min and max lod being equal.
*/
bld.num_mips = bld.num_lods = 1;
- if (lod_property == LP_SAMPLER_LOD_PER_ELEMENT &&
- (explicit_lod || lod_bias ||
- (derivs && static_texture_state->target != PIPE_TEXTURE_CUBE))) {
- if ((is_fetch && target != PIPE_BUFFER) ||
- (!is_fetch && mip_filter != PIPE_TEX_MIPFILTER_NONE)) {
+
+ if ((gallivm_debug & GALLIVM_DEBUG_NO_QUAD_LOD) &&
+ (gallivm_debug & GALLIVM_DEBUG_NO_RHO_APPROX) &&
+ (static_texture_state->target == PIPE_TEXTURE_CUBE ||
+ static_texture_state->target == PIPE_TEXTURE_CUBE_ARRAY) &&
+ (op_is_tex && mip_filter != PIPE_TEX_MIPFILTER_NONE)) {
+ /*
+ * special case for using per-pixel lod even for implicit lod,
+ * which is generally never required (ok by APIs) except to please
+ * some (somewhat broken imho) tests (because per-pixel face selection
+ * can cause derivatives to be different for pixels outside the primitive
+ * due to the major axis division even if pre-project derivatives are
+ * looking normal).
+ */
+ bld.num_mips = type.length;
+ bld.num_lods = type.length;
+ }
+ else if (lod_property == LP_SAMPLER_LOD_PER_ELEMENT ||
+ (explicit_lod || lod_bias || derivs)) {
+ if ((!op_is_tex && target != PIPE_BUFFER) ||
+ (op_is_tex && mip_filter != PIPE_TEX_MIPFILTER_NONE)) {
bld.num_mips = type.length;
bld.num_lods = type.length;
}
- else if (!is_fetch && min_img_filter != mag_img_filter) {
+ else if (op_is_tex && min_img_filter != mag_img_filter) {
bld.num_mips = 1;
bld.num_lods = type.length;
}
}
/* TODO: for true scalar_lod should only use 1 lod value */
- else if ((is_fetch && explicit_lod && target != PIPE_BUFFER) ||
- (!is_fetch && mip_filter != PIPE_TEX_MIPFILTER_NONE)) {
+ else if ((!op_is_tex && explicit_lod && target != PIPE_BUFFER) ||
+ (op_is_tex && mip_filter != PIPE_TEX_MIPFILTER_NONE)) {
bld.num_mips = num_quads;
bld.num_lods = num_quads;
}
- else if (!is_fetch && min_img_filter != mag_img_filter) {
+ else if (op_is_tex && min_img_filter != mag_img_filter) {
bld.num_mips = 1;
bld.num_lods = num_quads;
}
lp_build_context_init(&bld.lodi_bld, gallivm, bld.lodi_type);
/* Get the dynamic state */
- tex_width = dynamic_state->width(dynamic_state, gallivm, texture_index);
- bld.row_stride_array = dynamic_state->row_stride(dynamic_state, gallivm, texture_index);
- bld.img_stride_array = dynamic_state->img_stride(dynamic_state, gallivm, texture_index);
- bld.base_ptr = dynamic_state->base_ptr(dynamic_state, gallivm, texture_index);
- bld.mip_offsets = dynamic_state->mip_offsets(dynamic_state, gallivm, texture_index);
+ tex_width = dynamic_state->width(dynamic_state, gallivm,
+ context_ptr, texture_index);
+ bld.row_stride_array = dynamic_state->row_stride(dynamic_state, gallivm,
+ context_ptr, texture_index);
+ bld.img_stride_array = dynamic_state->img_stride(dynamic_state, gallivm,
+ context_ptr, texture_index);
+ bld.base_ptr = dynamic_state->base_ptr(dynamic_state, gallivm,
+ context_ptr, texture_index);
+ bld.mip_offsets = dynamic_state->mip_offsets(dynamic_state, gallivm,
+ context_ptr, texture_index);
/* Note that mip_offsets is an array[level] of offsets to texture images */
+ if (dynamic_state->cache_ptr && thread_data_ptr) {
+ bld.cache = dynamic_state->cache_ptr(dynamic_state, gallivm,
+ thread_data_ptr, texture_index);
+ }
+
/* width, height, depth as single int vector */
if (dims <= 1) {
bld.int_size = tex_width;
}
else {
bld.int_size = LLVMBuildInsertElement(builder, bld.int_size_in_bld.undef,
- tex_width, LLVMConstInt(i32t, 0, 0), "");
+ tex_width,
+ LLVMConstInt(i32t, 0, 0), "");
if (dims >= 2) {
LLVMValueRef tex_height =
- dynamic_state->height(dynamic_state, gallivm, texture_index);
+ dynamic_state->height(dynamic_state, gallivm,
+ context_ptr, texture_index);
bld.int_size = LLVMBuildInsertElement(builder, bld.int_size,
- tex_height, LLVMConstInt(i32t, 1, 0), "");
+ tex_height,
+ LLVMConstInt(i32t, 1, 0), "");
if (dims >= 3) {
LLVMValueRef tex_depth =
- dynamic_state->depth(dynamic_state, gallivm, texture_index);
+ dynamic_state->depth(dynamic_state, gallivm, context_ptr,
+ texture_index);
bld.int_size = LLVMBuildInsertElement(builder, bld.int_size,
- tex_depth, LLVMConstInt(i32t, 2, 0), "");
+ tex_depth,
+ LLVMConstInt(i32t, 2, 0), "");
}
}
}
texel_out);
}
- else if (is_fetch) {
+ else if (op_type == LP_SAMPLER_OP_FETCH) {
lp_build_fetch_texel(&bld, texture_index, newcoords,
- explicit_lod, offsets,
+ lod, offsets,
texel_out);
}
else {
LLVMValueRef lod_fpart = NULL, lod_positive = NULL;
LLVMValueRef ilevel0 = NULL, ilevel1 = NULL;
- boolean use_aos = util_format_fits_8unorm(bld.format_desc) &&
- /* not sure this is strictly needed or simply impossible */
- static_sampler_state->compare_mode == PIPE_TEX_COMPARE_NONE &&
- lp_is_simple_wrap_mode(static_sampler_state->wrap_s);
+ boolean use_aos;
+
+ if (util_format_is_pure_integer(static_texture_state->format) &&
+ !util_format_has_depth(bld.format_desc) &&
+ (static_sampler_state->min_mip_filter == PIPE_TEX_MIPFILTER_LINEAR ||
+ static_sampler_state->min_img_filter == PIPE_TEX_FILTER_LINEAR ||
+ static_sampler_state->mag_img_filter == PIPE_TEX_FILTER_LINEAR)) {
+ /*
+ * Bail if impossible filtering is specified (the awkard additional
+ * depth check is because it is legal in gallium to have things like S8Z24
+ * here which would say it's pure int despite such formats should sample
+ * the depth component).
+ * In GL such filters make the texture incomplete, this makes it robust
+ * against state trackers which set this up regardless (we'd crash in the
+ * lerp later (except for gather)).
+ * Must do this after fetch_texel code since with GL state tracker we'll
+ * get some junk sampler for buffer textures.
+ */
+ unsigned chan;
+ LLVMValueRef zero = lp_build_zero(gallivm, type);
+ for (chan = 0; chan < 4; chan++) {
+ texel_out[chan] = zero;
+ }
+ return;
+ }
+
+ use_aos = util_format_fits_8unorm(bld.format_desc) &&
+ op_is_tex &&
+ /* not sure this is strictly needed or simply impossible */
+ derived_sampler_state.compare_mode == PIPE_TEX_COMPARE_NONE &&
+ lp_is_simple_wrap_mode(derived_sampler_state.wrap_s);
use_aos &= bld.num_lods <= num_quads ||
- static_sampler_state->min_img_filter ==
- static_sampler_state->mag_img_filter;
+ derived_sampler_state.min_img_filter ==
+ derived_sampler_state.mag_img_filter;
if (dims > 1) {
- use_aos &= lp_is_simple_wrap_mode(static_sampler_state->wrap_t);
+ use_aos &= lp_is_simple_wrap_mode(derived_sampler_state.wrap_t);
if (dims > 2) {
- use_aos &= lp_is_simple_wrap_mode(static_sampler_state->wrap_r);
+ use_aos &= lp_is_simple_wrap_mode(derived_sampler_state.wrap_r);
}
}
+ if ((static_texture_state->target == PIPE_TEXTURE_CUBE ||
+ static_texture_state->target == PIPE_TEXTURE_CUBE_ARRAY) &&
+ derived_sampler_state.seamless_cube_map &&
+ (derived_sampler_state.min_img_filter == PIPE_TEX_FILTER_LINEAR ||
+ derived_sampler_state.mag_img_filter == PIPE_TEX_FILTER_LINEAR)) {
+ /* theoretically possible with AoS filtering but not implemented (complex!) */
+ use_aos = 0;
+ }
if ((gallivm_debug & GALLIVM_DEBUG_PERF) &&
!use_aos && util_format_fits_8unorm(bld.format_desc)) {
debug_printf("%s: using floating point linear filtering for %s\n",
__FUNCTION__, bld.format_desc->short_name);
- debug_printf(" min_img %d mag_img %d mip %d wraps %d wrapt %d wrapr %d\n",
- static_sampler_state->min_img_filter,
- static_sampler_state->mag_img_filter,
- static_sampler_state->min_mip_filter,
- static_sampler_state->wrap_s,
- static_sampler_state->wrap_t,
- static_sampler_state->wrap_r);
+ debug_printf(" min_img %d mag_img %d mip %d target %d seamless %d"
+ " wraps %d wrapt %d wrapr %d\n",
+ derived_sampler_state.min_img_filter,
+ derived_sampler_state.mag_img_filter,
+ derived_sampler_state.min_mip_filter,
+ static_texture_state->target,
+ derived_sampler_state.seamless_cube_map,
+ derived_sampler_state.wrap_s,
+ derived_sampler_state.wrap_t,
+ derived_sampler_state.wrap_r);
}
lp_build_sample_common(&bld, texture_index, sampler_index,
&lod_positive, &lod_fpart,
&ilevel0, &ilevel1);
+ if (use_aos && static_texture_state->target == PIPE_TEXTURE_CUBE_ARRAY) {
+ /* The aos path doesn't do seamless filtering so simply add cube layer
+ * to face now.
+ */
+ newcoords[2] = lp_build_add(&bld.int_coord_bld, newcoords[2], newcoords[3]);
+ }
+
/*
* we only try 8-wide sampling with soa as it appears to
* be a loss with aos with AVX (but it should work, except
else {
lp_build_sample_general(&bld, sampler_index,
+ op_type == LP_SAMPLER_OP_GATHER,
newcoords, offsets,
lod_positive, lod_fpart,
ilevel0, ilevel1,
/* Setup our build context */
memset(&bld4, 0, sizeof bld4);
bld4.gallivm = bld.gallivm;
+ bld4.context_ptr = bld.context_ptr;
bld4.static_texture_state = bld.static_texture_state;
bld4.static_sampler_state = bld.static_sampler_state;
bld4.dynamic_state = bld.dynamic_state;
bld4.base_ptr = bld.base_ptr;
bld4.mip_offsets = bld.mip_offsets;
bld4.int_size = bld.int_size;
+ bld4.cache = bld.cache;
bld4.vector_width = lp_type_width(type4);
bld4.texel_type.length = 4;
bld4.num_mips = bld4.num_lods = 1;
+ if ((gallivm_debug & GALLIVM_DEBUG_NO_QUAD_LOD) &&
+ (gallivm_debug & GALLIVM_DEBUG_NO_RHO_APPROX) &&
+ (static_texture_state->target == PIPE_TEXTURE_CUBE ||
+ static_texture_state->target == PIPE_TEXTURE_CUBE_ARRAY) &&
+ (op_is_tex && mip_filter != PIPE_TEX_MIPFILTER_NONE)) {
+ bld4.num_mips = type4.length;
+ bld4.num_lods = type4.length;
+ }
if (lod_property == LP_SAMPLER_LOD_PER_ELEMENT &&
- (explicit_lod || lod_bias ||
- (derivs && static_texture_state->target != PIPE_TEXTURE_CUBE))) {
- if ((is_fetch && target != PIPE_BUFFER) ||
- (!is_fetch && mip_filter != PIPE_TEX_MIPFILTER_NONE)) {
+ (explicit_lod || lod_bias || derivs)) {
+ if ((!op_is_tex && target != PIPE_BUFFER) ||
+ (op_is_tex && mip_filter != PIPE_TEX_MIPFILTER_NONE)) {
bld4.num_mips = type4.length;
bld4.num_lods = type4.length;
}
- else if (!is_fetch && min_img_filter != mag_img_filter) {
+ else if (op_is_tex && min_img_filter != mag_img_filter) {
bld4.num_mips = 1;
bld4.num_lods = type4.length;
}
newcoords4[4] = lp_build_extract_range(gallivm, newcoords[4], 4*i, 4);
lp_build_sample_general(&bld4, sampler_index,
+ op_type == LP_SAMPLER_OP_GATHER,
newcoords4, offsets4,
lod_positive4, lod_fpart4,
ilevel04, ilevel14,
}
}
- if (target != PIPE_BUFFER) {
+ if (target != PIPE_BUFFER && op_type != LP_SAMPLER_OP_GATHER) {
apply_sampler_swizzle(&bld, texel_out);
}
}
}
+
+#define USE_TEX_FUNC_CALL 1
+
+#define LP_MAX_TEX_FUNC_ARGS 32
+
+static inline void
+get_target_info(enum pipe_texture_target target,
+ unsigned *num_coords, unsigned *num_derivs,
+ unsigned *num_offsets, unsigned *layer)
+{
+ unsigned dims = texture_dims(target);
+ *num_coords = dims;
+ *num_offsets = dims;
+ *num_derivs = (target == PIPE_TEXTURE_CUBE ||
+ target == PIPE_TEXTURE_CUBE_ARRAY) ? 3 : dims;
+ *layer = has_layer_coord(target) ? 2: 0;
+ if (target == PIPE_TEXTURE_CUBE_ARRAY) {
+ /*
+ * dims doesn't include r coord for cubes - this is handled
+ * by layer instead, but need to fix up for cube arrays...
+ */
+ *layer = 3;
+ *num_coords = 3;
+ }
+}
+
+
+/**
+ * Generate the function body for a texture sampling function.
+ */
+static void
+lp_build_sample_gen_func(struct gallivm_state *gallivm,
+ const struct lp_static_texture_state *static_texture_state,
+ const struct lp_static_sampler_state *static_sampler_state,
+ struct lp_sampler_dynamic_state *dynamic_state,
+ struct lp_type type,
+ unsigned texture_index,
+ unsigned sampler_index,
+ LLVMValueRef function,
+ unsigned num_args,
+ unsigned sample_key)
+{
+ LLVMBuilderRef old_builder;
+ LLVMBasicBlockRef block;
+ LLVMValueRef coords[5];
+ LLVMValueRef offsets[3] = { NULL };
+ LLVMValueRef lod = NULL;
+ LLVMValueRef context_ptr;
+ LLVMValueRef thread_data_ptr = NULL;
+ LLVMValueRef texel_out[4];
+ struct lp_derivatives derivs;
+ struct lp_derivatives *deriv_ptr = NULL;
+ unsigned num_param = 0;
+ unsigned i, num_coords, num_derivs, num_offsets, layer;
+ enum lp_sampler_lod_control lod_control;
+ boolean need_cache = FALSE;
+
+ lod_control = (sample_key & LP_SAMPLER_LOD_CONTROL_MASK) >>
+ LP_SAMPLER_LOD_CONTROL_SHIFT;
+
+ get_target_info(static_texture_state->target,
+ &num_coords, &num_derivs, &num_offsets, &layer);
+
+ if (dynamic_state->cache_ptr) {
+ const struct util_format_description *format_desc;
+ format_desc = util_format_description(static_texture_state->format);
+ if (format_desc && format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
+ need_cache = TRUE;
+ }
+ }
+
+ /* "unpack" arguments */
+ context_ptr = LLVMGetParam(function, num_param++);
+ if (need_cache) {
+ thread_data_ptr = LLVMGetParam(function, num_param++);
+ }
+ for (i = 0; i < num_coords; i++) {
+ coords[i] = LLVMGetParam(function, num_param++);
+ }
+ for (i = num_coords; i < 5; i++) {
+ /* This is rather unfortunate... */
+ coords[i] = lp_build_undef(gallivm, type);
+ }
+ if (layer) {
+ coords[layer] = LLVMGetParam(function, num_param++);
+ }
+ if (sample_key & LP_SAMPLER_SHADOW) {
+ coords[4] = LLVMGetParam(function, num_param++);
+ }
+ if (sample_key & LP_SAMPLER_OFFSETS) {
+ for (i = 0; i < num_offsets; i++) {
+ offsets[i] = LLVMGetParam(function, num_param++);
+ }
+ }
+ if (lod_control == LP_SAMPLER_LOD_BIAS ||
+ lod_control == LP_SAMPLER_LOD_EXPLICIT) {
+ lod = LLVMGetParam(function, num_param++);
+ }
+ else if (lod_control == LP_SAMPLER_LOD_DERIVATIVES) {
+ for (i = 0; i < num_derivs; i++) {
+ derivs.ddx[i] = LLVMGetParam(function, num_param++);
+ derivs.ddy[i] = LLVMGetParam(function, num_param++);
+ }
+ deriv_ptr = &derivs;
+ }
+
+ assert(num_args == num_param);
+
+ /*
+ * Function body
+ */
+
+ old_builder = gallivm->builder;
+ block = LLVMAppendBasicBlockInContext(gallivm->context, function, "entry");
+ gallivm->builder = LLVMCreateBuilderInContext(gallivm->context);
+ LLVMPositionBuilderAtEnd(gallivm->builder, block);
+
+ lp_build_sample_soa_code(gallivm,
+ static_texture_state,
+ static_sampler_state,
+ dynamic_state,
+ type,
+ sample_key,
+ texture_index,
+ sampler_index,
+ context_ptr,
+ thread_data_ptr,
+ coords,
+ offsets,
+ deriv_ptr,
+ lod,
+ texel_out);
+
+ LLVMBuildAggregateRet(gallivm->builder, texel_out, 4);
+
+ LLVMDisposeBuilder(gallivm->builder);
+ gallivm->builder = old_builder;
+
+ gallivm_verify_function(gallivm, function);
+}
+
+
+/**
+ * Call the matching function for texture sampling.
+ * If there's no match, generate a new one.
+ */
+static void
+lp_build_sample_soa_func(struct gallivm_state *gallivm,
+ const struct lp_static_texture_state *static_texture_state,
+ const struct lp_static_sampler_state *static_sampler_state,
+ struct lp_sampler_dynamic_state *dynamic_state,
+ const struct lp_sampler_params *params)
+{
+ LLVMBuilderRef builder = gallivm->builder;
+ LLVMModuleRef module = LLVMGetGlobalParent(LLVMGetBasicBlockParent(
+ LLVMGetInsertBlock(builder)));
+ LLVMValueRef function, inst;
+ LLVMValueRef args[LP_MAX_TEX_FUNC_ARGS];
+ LLVMBasicBlockRef bb;
+ LLVMValueRef tex_ret;
+ unsigned num_args = 0;
+ char func_name[64];
+ unsigned i, num_coords, num_derivs, num_offsets, layer;
+ unsigned texture_index = params->texture_index;
+ unsigned sampler_index = params->sampler_index;
+ unsigned sample_key = params->sample_key;
+ const LLVMValueRef *coords = params->coords;
+ const LLVMValueRef *offsets = params->offsets;
+ const struct lp_derivatives *derivs = params->derivs;
+ enum lp_sampler_lod_control lod_control;
+ boolean need_cache = FALSE;
+
+ lod_control = (sample_key & LP_SAMPLER_LOD_CONTROL_MASK) >>
+ LP_SAMPLER_LOD_CONTROL_SHIFT;
+
+ get_target_info(static_texture_state->target,
+ &num_coords, &num_derivs, &num_offsets, &layer);
+
+ if (dynamic_state->cache_ptr) {
+ const struct util_format_description *format_desc;
+ format_desc = util_format_description(static_texture_state->format);
+ if (format_desc && format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) {
+ /*
+ * This is not 100% correct, if we have cache but the
+ * util_format_s3tc_prefer is true the cache won't get used
+ * regardless (could hook up the block decode there...) */
+ need_cache = TRUE;
+ }
+ }
+ /*
+ * texture function matches are found by name.
+ * Thus the name has to include both the texture and sampler unit
+ * (which covers all static state) plus the actual texture function
+ * (including things like offsets, shadow coord, lod control).
+ * Additionally lod_property has to be included too.
+ */
+
+ util_snprintf(func_name, sizeof(func_name), "texfunc_res_%d_sam_%d_%x",
+ texture_index, sampler_index, sample_key);
+
+ function = LLVMGetNamedFunction(module, func_name);
+
+ if(!function) {
+ LLVMTypeRef arg_types[LP_MAX_TEX_FUNC_ARGS];
+ LLVMTypeRef ret_type;
+ LLVMTypeRef function_type;
+ LLVMTypeRef val_type[4];
+ unsigned num_param = 0;
+
+ /*
+ * Generate the function prototype.
+ */
+
+ arg_types[num_param++] = LLVMTypeOf(params->context_ptr);
+ if (need_cache) {
+ arg_types[num_param++] = LLVMTypeOf(params->thread_data_ptr);
+ }
+ for (i = 0; i < num_coords; i++) {
+ arg_types[num_param++] = LLVMTypeOf(coords[0]);
+ assert(LLVMTypeOf(coords[0]) == LLVMTypeOf(coords[i]));
+ }
+ if (layer) {
+ arg_types[num_param++] = LLVMTypeOf(coords[layer]);
+ assert(LLVMTypeOf(coords[0]) == LLVMTypeOf(coords[layer]));
+ }
+ if (sample_key & LP_SAMPLER_SHADOW) {
+ arg_types[num_param++] = LLVMTypeOf(coords[0]);
+ }
+ if (sample_key & LP_SAMPLER_OFFSETS) {
+ for (i = 0; i < num_offsets; i++) {
+ arg_types[num_param++] = LLVMTypeOf(offsets[0]);
+ assert(LLVMTypeOf(offsets[0]) == LLVMTypeOf(offsets[i]));
+ }
+ }
+ if (lod_control == LP_SAMPLER_LOD_BIAS ||
+ lod_control == LP_SAMPLER_LOD_EXPLICIT) {
+ arg_types[num_param++] = LLVMTypeOf(params->lod);
+ }
+ else if (lod_control == LP_SAMPLER_LOD_DERIVATIVES) {
+ for (i = 0; i < num_derivs; i++) {
+ arg_types[num_param++] = LLVMTypeOf(derivs->ddx[i]);
+ arg_types[num_param++] = LLVMTypeOf(derivs->ddy[i]);
+ assert(LLVMTypeOf(derivs->ddx[0]) == LLVMTypeOf(derivs->ddx[i]));
+ assert(LLVMTypeOf(derivs->ddy[0]) == LLVMTypeOf(derivs->ddy[i]));
+ }
+ }
+
+ val_type[0] = val_type[1] = val_type[2] = val_type[3] =
+ lp_build_vec_type(gallivm, params->type);
+ ret_type = LLVMStructTypeInContext(gallivm->context, val_type, 4, 0);
+ function_type = LLVMFunctionType(ret_type, arg_types, num_param, 0);
+ function = LLVMAddFunction(module, func_name, function_type);
+
+ for (i = 0; i < num_param; ++i) {
+ if(LLVMGetTypeKind(arg_types[i]) == LLVMPointerTypeKind) {
+ LLVMAddAttribute(LLVMGetParam(function, i), LLVMNoAliasAttribute);
+ }
+ }
+
+ LLVMSetFunctionCallConv(function, LLVMFastCallConv);
+ LLVMSetLinkage(function, LLVMPrivateLinkage);
+
+ lp_build_sample_gen_func(gallivm,
+ static_texture_state,
+ static_sampler_state,
+ dynamic_state,
+ params->type,
+ texture_index,
+ sampler_index,
+ function,
+ num_param,
+ sample_key);
+ }
+
+ num_args = 0;
+ args[num_args++] = params->context_ptr;
+ if (need_cache) {
+ args[num_args++] = params->thread_data_ptr;
+ }
+ for (i = 0; i < num_coords; i++) {
+ args[num_args++] = coords[i];
+ }
+ if (layer) {
+ args[num_args++] = coords[layer];
+ }
+ if (sample_key & LP_SAMPLER_SHADOW) {
+ args[num_args++] = coords[4];
+ }
+ if (sample_key & LP_SAMPLER_OFFSETS) {
+ for (i = 0; i < num_offsets; i++) {
+ args[num_args++] = offsets[i];
+ }
+ }
+ if (lod_control == LP_SAMPLER_LOD_BIAS ||
+ lod_control == LP_SAMPLER_LOD_EXPLICIT) {
+ args[num_args++] = params->lod;
+ }
+ else if (lod_control == LP_SAMPLER_LOD_DERIVATIVES) {
+ for (i = 0; i < num_derivs; i++) {
+ args[num_args++] = derivs->ddx[i];
+ args[num_args++] = derivs->ddy[i];
+ }
+ }
+
+ assert(num_args <= LP_MAX_TEX_FUNC_ARGS);
+
+ tex_ret = LLVMBuildCall(builder, function, args, num_args, "");
+ bb = LLVMGetInsertBlock(builder);
+ inst = LLVMGetLastInstruction(bb);
+ LLVMSetInstructionCallConv(inst, LLVMFastCallConv);
+
+ for (i = 0; i < 4; i++) {
+ params->texel[i] = LLVMBuildExtractValue(gallivm->builder, tex_ret, i, "");
+ }
+}
+
+
+/**
+ * Build texture sampling code.
+ * Either via a function call or inline it directly.
+ */
+void
+lp_build_sample_soa(const struct lp_static_texture_state *static_texture_state,
+ const struct lp_static_sampler_state *static_sampler_state,
+ struct lp_sampler_dynamic_state *dynamic_state,
+ struct gallivm_state *gallivm,
+ const struct lp_sampler_params *params)
+{
+ boolean use_tex_func = FALSE;
+
+ /*
+ * Do not use a function call if the sampling is "simple enough".
+ * We define this by
+ * a) format
+ * b) no mips (either one level only or no mip filter)
+ * No mips will definitely make the code smaller, though
+ * the format requirement is a bit iffy - there's some (SoA) formats
+ * which definitely generate less code. This does happen to catch
+ * some important cases though which are hurt quite a bit by using
+ * a call (though not really because of the call overhead but because
+ * they are reusing the same texture unit with some of the same
+ * parameters).
+ * Ideally we'd let llvm recognize this stuff by doing IPO passes.
+ */
+
+ if (USE_TEX_FUNC_CALL) {
+ const struct util_format_description *format_desc;
+ boolean simple_format;
+ boolean simple_tex;
+ enum lp_sampler_op_type op_type;
+ format_desc = util_format_description(static_texture_state->format);
+ simple_format = !format_desc ||
+ (util_format_is_rgba8_variant(format_desc) &&
+ format_desc->colorspace == UTIL_FORMAT_COLORSPACE_RGB);
+
+ op_type = (params->sample_key & LP_SAMPLER_OP_TYPE_MASK) >>
+ LP_SAMPLER_OP_TYPE_SHIFT;
+ simple_tex =
+ op_type != LP_SAMPLER_OP_TEXTURE ||
+ ((static_sampler_state->min_mip_filter == PIPE_TEX_MIPFILTER_NONE ||
+ static_texture_state->level_zero_only == TRUE) &&
+ static_sampler_state->min_img_filter == static_sampler_state->mag_img_filter);
+
+ use_tex_func = format_desc && !(simple_format && simple_tex);
+ }
+
+ if (use_tex_func) {
+ lp_build_sample_soa_func(gallivm,
+ static_texture_state,
+ static_sampler_state,
+ dynamic_state,
+ params);
+ }
+ else {
+ lp_build_sample_soa_code(gallivm,
+ static_texture_state,
+ static_sampler_state,
+ dynamic_state,
+ params->type,
+ params->sample_key,
+ params->texture_index,
+ params->sampler_index,
+ params->context_ptr,
+ params->thread_data_ptr,
+ params->coords,
+ params->offsets,
+ params->derivs,
+ params->lod,
+ params->texel);
+ }
+}
+
+
void
lp_build_size_query_soa(struct gallivm_state *gallivm,
const struct lp_static_texture_state *static_state,
struct lp_type int_type,
unsigned texture_unit,
unsigned target,
+ LLVMValueRef context_ptr,
boolean is_sviewinfo,
enum lp_sampler_lod_property lod_property,
LLVMValueRef explicit_lod,
unsigned num_lods = 1;
struct lp_build_context bld_int_vec4;
+ if (static_state->format == PIPE_FORMAT_NONE) {
+ /*
+ * If there's nothing bound, format is NONE, and we must return
+ * all zero as mandated by d3d10 in this case.
+ */
+ unsigned chan;
+ LLVMValueRef zero = lp_build_const_vec(gallivm, int_type, 0.0F);
+ for (chan = 0; chan < 4; chan++) {
+ sizes_out[chan] = zero;
+ }
+ return;
+ }
+
/*
* Do some sanity verification about bound texture and shader dcl target.
* Not entirely sure what's possible but assume array/non-array
switch (target) {
case PIPE_TEXTURE_1D_ARRAY:
case PIPE_TEXTURE_2D_ARRAY:
+ case PIPE_TEXTURE_CUBE_ARRAY:
has_array = TRUE;
break;
default:
if (explicit_lod) {
/* FIXME: this needs to honor per-element lod */
- lod = LLVMBuildExtractElement(gallivm->builder, explicit_lod, lp_build_const_int32(gallivm, 0), "");
- first_level = dynamic_state->first_level(dynamic_state, gallivm, texture_unit);
+ lod = LLVMBuildExtractElement(gallivm->builder, explicit_lod,
+ lp_build_const_int32(gallivm, 0), "");
+ first_level = dynamic_state->first_level(dynamic_state, gallivm,
+ context_ptr, texture_unit);
level = LLVMBuildAdd(gallivm->builder, lod, first_level, "level");
lod = lp_build_broadcast_scalar(&bld_int_vec4, level);
} else {
size = bld_int_vec4.undef;
size = LLVMBuildInsertElement(gallivm->builder, size,
- dynamic_state->width(dynamic_state, gallivm, texture_unit),
+ dynamic_state->width(dynamic_state, gallivm,
+ context_ptr, texture_unit),
lp_build_const_int32(gallivm, 0), "");
if (dims >= 2) {
size = LLVMBuildInsertElement(gallivm->builder, size,
- dynamic_state->height(dynamic_state, gallivm, texture_unit),
+ dynamic_state->height(dynamic_state, gallivm,
+ context_ptr, texture_unit),
lp_build_const_int32(gallivm, 1), "");
}
if (dims >= 3) {
size = LLVMBuildInsertElement(gallivm->builder, size,
- dynamic_state->depth(dynamic_state, gallivm, texture_unit),
+ dynamic_state->depth(dynamic_state, gallivm,
+ context_ptr, texture_unit),
lp_build_const_int32(gallivm, 2), "");
}
- size = lp_build_minify(&bld_int_vec4, size, lod);
+ size = lp_build_minify(&bld_int_vec4, size, lod, TRUE);
- if (has_array)
- size = LLVMBuildInsertElement(gallivm->builder, size,
- dynamic_state->depth(dynamic_state, gallivm, texture_unit),
+ if (has_array) {
+ LLVMValueRef layers = dynamic_state->depth(dynamic_state, gallivm,
+ context_ptr, texture_unit);
+ if (target == PIPE_TEXTURE_CUBE_ARRAY) {
+ /*
+ * It looks like GL wants number of cubes, d3d10.1 has it undefined?
+ * Could avoid this by passing in number of cubes instead of total
+ * number of layers (might make things easier elsewhere too).
+ */
+ LLVMValueRef six = lp_build_const_int32(gallivm, 6);
+ layers = LLVMBuildSDiv(gallivm->builder, layers, six, "");
+ }
+ size = LLVMBuildInsertElement(gallivm->builder, size, layers,
lp_build_const_int32(gallivm, dims), "");
+ }
/*
* d3d10 requires zero for x/y/z values (but not w, i.e. mip levels)
/* everything is scalar for now */
lp_build_context_init(&leveli_bld, gallivm, lp_type_int_vec(32, 32));
- last_level = dynamic_state->last_level(dynamic_state, gallivm, texture_unit);
+ last_level = dynamic_state->last_level(dynamic_state, gallivm,
+ context_ptr, texture_unit);
out = lp_build_cmp(&leveli_bld, PIPE_FUNC_LESS, level, first_level);
out1 = lp_build_cmp(&leveli_bld, PIPE_FUNC_GREATER, level, last_level);
else {
LLVMValueRef last_level;
- last_level = dynamic_state->last_level(dynamic_state, gallivm, texture_unit);
+ last_level = dynamic_state->last_level(dynamic_state, gallivm,
+ context_ptr, texture_unit);
num_levels = lp_build_sub(&bld_int_scalar, last_level, first_level);
num_levels = lp_build_add(&bld_int_scalar, num_levels, bld_int_scalar.one);
}
projects / mesa.git / blobdiff