* for scaled integer texcoords.
* \param block_length is the length of the pixel block along the
* coordinate axis
- * \param coord the incoming texcoord (s,t,r or q) scaled to the texture size
+ * \param coord the incoming texcoord (s,t or r) scaled to the texture size
+ * \param coord_f the incoming texcoord (s,t or r) as float vec
* \param length the texture size along one dimension
* \param stride pixel stride along the coordinate axis (in bytes)
+ * \param offset the texel offset along the coord axis
* \param is_pot if TRUE, length is a power of two
* \param wrap_mode one of PIPE_TEX_WRAP_x
* \param out_offset byte offset for the wrapped coordinate
LLVMValueRef coord_f,
LLVMValueRef length,
LLVMValueRef stride,
+ LLVMValueRef offset,
boolean is_pot,
unsigned wrap_mode,
LLVMValueRef *out_offset,
else {
struct lp_build_context *coord_bld = &bld->coord_bld;
LLVMValueRef length_f = lp_build_int_to_float(coord_bld, length);
+ if (offset) {
+ offset = lp_build_int_to_float(coord_bld, offset);
+ offset = lp_build_div(coord_bld, offset, length_f);
+ coord_f = lp_build_add(coord_bld, coord_f, offset);
+ }
coord = lp_build_fract_safe(coord_bld, coord_f);
coord = lp_build_mul(coord_bld, coord, length_f);
coord = lp_build_itrunc(coord_bld, coord);
/**
- * Build LLVM code for texture coord wrapping, for nearest filtering,
- * for float texcoords.
- * \param coord the incoming texcoord (s,t,r or q)
- * \param length the texture size along one dimension
- * \param is_pot if TRUE, length is a power of two
- * \param wrap_mode one of PIPE_TEX_WRAP_x
- * \param icoord the texcoord after wrapping, as int
+ * Helper to compute the first coord and the weight for
+ * linear wrap repeat npot textures
*/
static void
-lp_build_sample_wrap_nearest_float(struct lp_build_sample_context *bld,
- LLVMValueRef coord,
- LLVMValueRef length,
- boolean is_pot,
- unsigned wrap_mode,
- LLVMValueRef *icoord)
+lp_build_coord_repeat_npot_linear_int(struct lp_build_sample_context *bld,
+ LLVMValueRef coord_f,
+ LLVMValueRef length_i,
+ LLVMValueRef length_f,
+ LLVMValueRef *coord0_i,
+ LLVMValueRef *weight_i)
{
struct lp_build_context *coord_bld = &bld->coord_bld;
- LLVMValueRef length_minus_one;
+ struct lp_build_context *int_coord_bld = &bld->int_coord_bld;
+ struct lp_build_context abs_coord_bld;
+ struct lp_type abs_type;
+ LLVMValueRef length_minus_one = lp_build_sub(int_coord_bld, length_i,
+ int_coord_bld->one);
+ LLVMValueRef mask, i32_c8, i32_c128, i32_c255;
+
+ /* wrap with normalized floats is just fract */
+ coord_f = lp_build_fract(coord_bld, coord_f);
+ /* mul by size */
+ coord_f = lp_build_mul(coord_bld, coord_f, length_f);
+ /* convert to int, compute lerp weight */
+ coord_f = lp_build_mul_imm(&bld->coord_bld, coord_f, 256);
+
+ /* At this point we don't have any negative numbers so use non-signed
+ * build context which might help on some archs.
+ */
+ abs_type = coord_bld->type;
+ abs_type.sign = 0;
+ lp_build_context_init(&abs_coord_bld, bld->gallivm, abs_type);
+ *coord0_i = lp_build_iround(&abs_coord_bld, coord_f);
- switch(wrap_mode) {
- case PIPE_TEX_WRAP_REPEAT:
- /* take fraction, unnormalize */
- coord = lp_build_fract_safe(coord_bld, coord);
- coord = lp_build_mul(coord_bld, coord, length);
- *icoord = lp_build_itrunc(coord_bld, coord);
- break;
- case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
- length_minus_one = lp_build_sub(coord_bld, length, coord_bld->one);
- if (bld->static_sampler_state->normalized_coords) {
- /* scale coord to length */
- coord = lp_build_mul(coord_bld, coord, length);
- }
- coord = lp_build_clamp(coord_bld, coord, coord_bld->zero,
- length_minus_one);
- *icoord = lp_build_itrunc(coord_bld, coord);
- break;
+ /* subtract 0.5 (add -128) */
+ i32_c128 = lp_build_const_int_vec(bld->gallivm, bld->int_coord_type, -128);
+ *coord0_i = LLVMBuildAdd(bld->gallivm->builder, *coord0_i, i32_c128, "");
- case PIPE_TEX_WRAP_CLAMP:
- case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
- case PIPE_TEX_WRAP_MIRROR_REPEAT:
- case PIPE_TEX_WRAP_MIRROR_CLAMP:
- case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
- case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
- default:
- assert(0);
- }
+ /* compute fractional part (AND with 0xff) */
+ i32_c255 = lp_build_const_int_vec(bld->gallivm, bld->int_coord_type, 255);
+ *weight_i = LLVMBuildAnd(bld->gallivm->builder, *coord0_i, i32_c255, "");
+
+ /* compute floor (shift right 8) */
+ i32_c8 = lp_build_const_int_vec(bld->gallivm, bld->int_coord_type, 8);
+ *coord0_i = LLVMBuildAShr(bld->gallivm->builder, *coord0_i, i32_c8, "");
+ /*
+ * we avoided the 0.5/length division before the repeat wrap,
+ * now need to fix up edge cases with selects
+ */
+ mask = lp_build_compare(int_coord_bld->gallivm, int_coord_bld->type,
+ PIPE_FUNC_LESS, *coord0_i, int_coord_bld->zero);
+ *coord0_i = lp_build_select(int_coord_bld, mask, length_minus_one, *coord0_i);
+ /*
+ * We should never get values too large - except if coord was nan or inf,
+ * in which case things go terribly wrong...
+ * Alternatively, could use fract_safe above...
+ */
+ *coord0_i = lp_build_min(int_coord_bld, *coord0_i, length_minus_one);
}
* for scaled integer texcoords.
* \param block_length is the length of the pixel block along the
* coordinate axis
- * \param coord0 the incoming texcoord (s,t,r or q) scaled to the texture size
+ * \param coord0 the incoming texcoord (s,t or r) scaled to the texture size
+ * \param coord_f the incoming texcoord (s,t or r) as float vec
* \param length the texture size along one dimension
* \param stride pixel stride along the coordinate axis (in bytes)
+ * \param offset the texel offset along the coord axis
* \param is_pot if TRUE, length is a power of two
* \param wrap_mode one of PIPE_TEX_WRAP_x
* \param offset0 resulting relative offset for coord0
LLVMValueRef coord_f,
LLVMValueRef length,
LLVMValueRef stride,
+ LLVMValueRef offset,
boolean is_pot,
unsigned wrap_mode,
LLVMValueRef *offset0,
}
else {
LLVMValueRef mask;
- LLVMValueRef weight;
LLVMValueRef length_f = lp_build_int_to_float(&bld->coord_bld, length);
- lp_build_coord_repeat_npot_linear(bld, coord_f,
- length, length_f,
- &coord0, &weight);
+ if (offset) {
+ offset = lp_build_int_to_float(&bld->coord_bld, offset);
+ offset = lp_build_div(&bld->coord_bld, offset, length_f);
+ coord_f = lp_build_add(&bld->coord_bld, coord_f, offset);
+ }
+ lp_build_coord_repeat_npot_linear_int(bld, coord_f,
+ length, length_f,
+ &coord0, weight_i);
mask = lp_build_compare(bld->gallivm, int_coord_bld->type,
PIPE_FUNC_NOTEQUAL, coord0, length_minus_one);
coord1 = LLVMBuildAnd(builder,
lp_build_add(int_coord_bld, coord0,
int_coord_bld->one),
mask, "");
- weight = lp_build_mul_imm(&bld->coord_bld, weight, 256);
- *weight_i = lp_build_itrunc(&bld->coord_bld, weight);
}
break;
coord0 = LLVMBuildAnd(builder, coord0, length_minus_one, "");
}
else {
- LLVMValueRef weight;
LLVMValueRef length_f = lp_build_int_to_float(&bld->coord_bld, length);
- lp_build_coord_repeat_npot_linear(bld, coord_f,
- length, length_f,
- &coord0, &weight);
- weight = lp_build_mul_imm(&bld->coord_bld, weight, 256);
- *weight_i = lp_build_itrunc(&bld->coord_bld, weight);
+ if (offset) {
+ offset = lp_build_int_to_float(&bld->coord_bld, offset);
+ offset = lp_build_div(&bld->coord_bld, offset, length_f);
+ coord_f = lp_build_add(&bld->coord_bld, coord_f, offset);
+ }
+ lp_build_coord_repeat_npot_linear_int(bld, coord_f,
+ length, length_f,
+ &coord0, weight_i);
}
mask = lp_build_compare(bld->gallivm, int_coord_bld->type,
}
-/**
- * Build LLVM code for texture coord wrapping, for linear filtering,
- * for float texcoords.
- * \param block_length is the length of the pixel block along the
- * coordinate axis
- * \param coord the incoming texcoord (s,t,r or q)
- * \param length the texture size along one dimension
- * \param is_pot if TRUE, length is a power of two
- * \param wrap_mode one of PIPE_TEX_WRAP_x
- * \param coord0 the first texcoord after wrapping, as int
- * \param coord1 the second texcoord after wrapping, as int
- * \param weight the filter weight as int (0-255)
- * \param force_nearest if this coord actually uses nearest filtering
- */
-static void
-lp_build_sample_wrap_linear_float(struct lp_build_sample_context *bld,
- unsigned block_length,
- LLVMValueRef coord,
- LLVMValueRef length,
- boolean is_pot,
- unsigned wrap_mode,
- LLVMValueRef *coord0,
- LLVMValueRef *coord1,
- LLVMValueRef *weight,
- unsigned force_nearest)
-{
- struct lp_build_context *int_coord_bld = &bld->int_coord_bld;
- struct lp_build_context *coord_bld = &bld->coord_bld;
- LLVMBuilderRef builder = bld->gallivm->builder;
- LLVMValueRef half = lp_build_const_vec(bld->gallivm, coord_bld->type, 0.5);
- LLVMValueRef length_minus_one = lp_build_sub(coord_bld, length, coord_bld->one);
-
- switch(wrap_mode) {
- case PIPE_TEX_WRAP_REPEAT:
- if (is_pot) {
- /* mul by size and subtract 0.5 */
- coord = lp_build_mul(coord_bld, coord, length);
- if (!force_nearest)
- coord = lp_build_sub(coord_bld, coord, half);
- *coord1 = lp_build_add(coord_bld, coord, coord_bld->one);
- /* convert to int, compute lerp weight */
- lp_build_ifloor_fract(coord_bld, coord, coord0, weight);
- *coord1 = lp_build_ifloor(coord_bld, *coord1);
- /* repeat wrap */
- length_minus_one = lp_build_itrunc(coord_bld, length_minus_one);
- *coord0 = LLVMBuildAnd(builder, *coord0, length_minus_one, "");
- *coord1 = LLVMBuildAnd(builder, *coord1, length_minus_one, "");
- }
- else {
- LLVMValueRef mask;
- /* wrap with normalized floats is just fract */
- coord = lp_build_fract(coord_bld, coord);
- /* unnormalize */
- coord = lp_build_mul(coord_bld, coord, length);
- /*
- * we avoided the 0.5/length division, have to fix up wrong
- * edge cases with selects
- */
- *coord1 = lp_build_add(coord_bld, coord, half);
- coord = lp_build_sub(coord_bld, coord, half);
- *weight = lp_build_fract(coord_bld, coord);
- mask = lp_build_compare(coord_bld->gallivm, coord_bld->type,
- PIPE_FUNC_LESS, coord, coord_bld->zero);
- *coord0 = lp_build_select(coord_bld, mask, length_minus_one, coord);
- *coord0 = lp_build_itrunc(coord_bld, *coord0);
- mask = lp_build_compare(coord_bld->gallivm, coord_bld->type,
- PIPE_FUNC_LESS, *coord1, length);
- *coord1 = lp_build_select(coord_bld, mask, *coord1, coord_bld->zero);
- *coord1 = lp_build_itrunc(coord_bld, *coord1);
- }
- break;
- case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
- if (bld->static_sampler_state->normalized_coords) {
- /* mul by tex size */
- coord = lp_build_mul(coord_bld, coord, length);
- }
- /* subtract 0.5 */
- if (!force_nearest) {
- coord = lp_build_sub(coord_bld, coord, half);
- }
- /* clamp to [0, length - 1] */
- coord = lp_build_min(coord_bld, coord, length_minus_one);
- coord = lp_build_max(coord_bld, coord, coord_bld->zero);
- *coord1 = lp_build_add(coord_bld, coord, coord_bld->one);
- /* convert to int, compute lerp weight */
- lp_build_ifloor_fract(coord_bld, coord, coord0, weight);
- /* coord1 = min(coord1, length-1) */
- *coord1 = lp_build_min(coord_bld, *coord1, length_minus_one);
- *coord1 = lp_build_itrunc(coord_bld, *coord1);
- break;
- default:
- assert(0);
- *coord0 = int_coord_bld->zero;
- *coord1 = int_coord_bld->zero;
- *weight = coord_bld->zero;
- break;
- }
- *weight = lp_build_mul_imm(coord_bld, *weight, 256);
- *weight = lp_build_itrunc(coord_bld, *weight);
- return;
-}
-
-
/**
* Fetch texels for image with nearest sampling.
* Return filtered color as two vectors of 16-bit fixed point values.
LLVMValueRef offset,
LLVMValueRef x_subcoord,
LLVMValueRef y_subcoord,
- LLVMValueRef *colors_lo,
- LLVMValueRef *colors_hi)
+ LLVMValueRef *colors)
{
/*
* Fetch the pixels as 4 x 32bit (rgba order might differ):
*/
LLVMBuilderRef builder = bld->gallivm->builder;
LLVMValueRef rgba8;
- struct lp_build_context h16, u8n;
+ struct lp_build_context u8n;
LLVMTypeRef u8n_vec_type;
+ struct lp_type fetch_type;
- lp_build_context_init(&h16, bld->gallivm, lp_type_ufixed(16, bld->vector_width));
lp_build_context_init(&u8n, bld->gallivm, lp_type_unorm(8, bld->vector_width));
u8n_vec_type = lp_build_vec_type(bld->gallivm, u8n.type);
+ fetch_type = lp_type_uint(bld->texel_type.width);
if (util_format_is_rgba8_variant(bld->format_desc)) {
/*
* Given the format is a rgba8, just read the pixels as is,
rgba8 = lp_build_gather(bld->gallivm,
bld->texel_type.length,
bld->format_desc->block.bits,
- bld->texel_type.width,
- data_ptr, offset);
+ fetch_type,
+ TRUE,
+ data_ptr, offset, TRUE);
rgba8 = LLVMBuildBitCast(builder, rgba8, u8n_vec_type, "");
}
rgba8 = lp_build_fetch_rgba_aos(bld->gallivm,
bld->format_desc,
u8n.type,
+ TRUE,
data_ptr, offset,
x_subcoord,
- y_subcoord);
+ y_subcoord,
+ bld->cache);
}
- /* Expand one 4*rgba8 to two 2*rgba16 */
- lp_build_unpack2(bld->gallivm, u8n.type, h16.type,
- rgba8,
- colors_lo, colors_hi);
+ *colors = rgba8;
}
LLVMValueRef s,
LLVMValueRef t,
LLVMValueRef r,
- LLVMValueRef *colors_lo,
- LLVMValueRef *colors_hi)
+ const LLVMValueRef *offsets,
+ LLVMValueRef *colors)
{
const unsigned dims = bld->dims;
- LLVMBuilderRef builder = bld->gallivm->builder;
struct lp_build_context i32;
- LLVMTypeRef i32_vec_type;
- LLVMValueRef i32_c8;
LLVMValueRef width_vec, height_vec, depth_vec;
LLVMValueRef s_ipart, t_ipart = NULL, r_ipart = NULL;
LLVMValueRef s_float, t_float = NULL, r_float = NULL;
lp_build_context_init(&i32, bld->gallivm, lp_type_int_vec(32, bld->vector_width));
- i32_vec_type = lp_build_vec_type(bld->gallivm, i32.type);
-
lp_build_extract_image_sizes(bld,
&bld->int_size_bld,
bld->int_coord_type,
s_float = s; t_float = t; r_float = r;
if (bld->static_sampler_state->normalized_coords) {
- LLVMValueRef scaled_size;
LLVMValueRef flt_size;
- /* 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);
+ flt_size = lp_build_int_to_float(&bld->float_size_bld, int_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, "");
+ /* For correct rounding, need floor, not truncation here.
+ * Note that in some cases (clamp to edge, no texel offsets) we
+ * could use a non-signed build context which would help archs
+ * greatly which don't have arch rounding.
+ */
+ s_ipart = lp_build_ifloor(&bld->coord_bld, s);
if (dims >= 2)
- t = LLVMBuildFPToSI(builder, t, i32_vec_type, "");
+ t_ipart = lp_build_ifloor(&bld->coord_bld, t);
if (dims >= 3)
- r = LLVMBuildFPToSI(builder, r, i32_vec_type, "");
+ r_ipart = lp_build_ifloor(&bld->coord_bld, r);
- /* compute floor (shift right 8) */
- i32_c8 = lp_build_const_int_vec(bld->gallivm, i32.type, 8);
- s_ipart = LLVMBuildAShr(builder, s, i32_c8, "");
- if (dims >= 2)
- t_ipart = LLVMBuildAShr(builder, t, i32_c8, "");
- if (dims >= 3)
- r_ipart = LLVMBuildAShr(builder, r, i32_c8, "");
+ /* add texel offsets */
+ if (offsets[0]) {
+ s_ipart = lp_build_add(&i32, s_ipart, offsets[0]);
+ if (dims >= 2) {
+ t_ipart = lp_build_add(&i32, t_ipart, offsets[1]);
+ if (dims >= 3) {
+ r_ipart = lp_build_add(&i32, r_ipart, offsets[2]);
+ }
+ }
+ }
/* get pixel, row, image strides */
x_stride = lp_build_const_vec(bld->gallivm,
lp_build_sample_wrap_nearest_int(bld,
bld->format_desc->block.width,
s_ipart, s_float,
- width_vec, x_stride,
+ width_vec, x_stride, offsets[0],
bld->static_texture_state->pot_width,
bld->static_sampler_state->wrap_s,
&x_offset, &x_subcoord);
lp_build_sample_wrap_nearest_int(bld,
bld->format_desc->block.height,
t_ipart, t_float,
- height_vec, row_stride_vec,
+ height_vec, row_stride_vec, offsets[1],
bld->static_texture_state->pot_height,
bld->static_sampler_state->wrap_t,
&y_offset, &y_subcoord);
lp_build_sample_wrap_nearest_int(bld,
1, /* block length (depth) */
r_ipart, r_float,
- depth_vec, img_stride_vec,
+ depth_vec, img_stride_vec, offsets[2],
bld->static_texture_state->pot_depth,
bld->static_sampler_state->wrap_r,
&z_offset, &z_subcoord);
offset = lp_build_add(&bld->int_coord_bld, offset, z_offset);
}
}
- 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) {
+ if (has_layer_coord(bld->static_texture_state->target)) {
LLVMValueRef z_offset;
/* The r coord is the cube face in [0,5] or array layer */
z_offset = lp_build_mul(&bld->int_coord_bld, r, img_stride_vec);
lp_build_sample_fetch_image_nearest(bld, data_ptr, offset,
x_subcoord, y_subcoord,
- colors_lo, colors_hi);
-}
-
-
-/**
- * Sample a single texture image with nearest sampling.
- * If sampling a cube texture, r = cube face in [0,5].
- * Return filtered color as two vectors of 16-bit fixed point values.
- * Does address calcs (except offsets) with floats.
- * Useful for AVX which has support for 8x32 floats but not 8x32 ints.
- */
-static void
-lp_build_sample_image_nearest_afloat(struct lp_build_sample_context *bld,
- LLVMValueRef int_size,
- LLVMValueRef row_stride_vec,
- LLVMValueRef img_stride_vec,
- LLVMValueRef data_ptr,
- LLVMValueRef mipoffsets,
- LLVMValueRef s,
- LLVMValueRef t,
- LLVMValueRef r,
- LLVMValueRef *colors_lo,
- LLVMValueRef *colors_hi)
- {
- const unsigned dims = bld->dims;
- LLVMValueRef width_vec, height_vec, depth_vec;
- LLVMValueRef offset;
- LLVMValueRef x_subcoord, y_subcoord;
- LLVMValueRef x_icoord = NULL, y_icoord = NULL, z_icoord = NULL;
- LLVMValueRef flt_size;
-
- flt_size = lp_build_int_to_float(&bld->float_size_bld, int_size);
-
- lp_build_extract_image_sizes(bld,
- &bld->float_size_bld,
- bld->coord_type,
- flt_size,
- &width_vec,
- &height_vec,
- &depth_vec);
-
- /* Do texcoord wrapping */
- lp_build_sample_wrap_nearest_float(bld,
- s, width_vec,
- bld->static_texture_state->pot_width,
- bld->static_sampler_state->wrap_s,
- &x_icoord);
-
- if (dims >= 2) {
- lp_build_sample_wrap_nearest_float(bld,
- t, height_vec,
- bld->static_texture_state->pot_height,
- bld->static_sampler_state->wrap_t,
- &y_icoord);
-
- if (dims >= 3) {
- lp_build_sample_wrap_nearest_float(bld,
- r, depth_vec,
- bld->static_texture_state->pot_depth,
- bld->static_sampler_state->wrap_r,
- &z_icoord);
- }
- }
- 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_icoord = r;
- }
-
- /*
- * From here on we deal with ints, and we should split up the 256bit
- * vectors manually for better generated code.
- */
-
- /*
- * compute texel offsets -
- * cannot do offset calc with floats, difficult for block-based formats,
- * and not enough precision anyway.
- */
- lp_build_sample_offset(&bld->int_coord_bld,
- bld->format_desc,
- x_icoord, y_icoord,
- z_icoord,
- row_stride_vec, img_stride_vec,
- &offset,
- &x_subcoord, &y_subcoord);
- if (mipoffsets) {
- offset = lp_build_add(&bld->int_coord_bld, offset, mipoffsets);
- }
-
- lp_build_sample_fetch_image_nearest(bld, data_ptr, offset,
- x_subcoord, y_subcoord,
- colors_lo, colors_hi);
+ colors);
}
LLVMValueRef s_fpart,
LLVMValueRef t_fpart,
LLVMValueRef r_fpart,
- LLVMValueRef *colors_lo,
- LLVMValueRef *colors_hi)
+ LLVMValueRef *colors)
{
const unsigned dims = bld->dims;
LLVMBuilderRef builder = bld->gallivm->builder;
- struct lp_build_context h16, u8n;
- LLVMTypeRef h16_vec_type, u8n_vec_type;
+ struct lp_build_context u8n;
+ LLVMTypeRef u8n_vec_type;
LLVMTypeRef elem_type = LLVMInt32TypeInContext(bld->gallivm->context);
- LLVMValueRef shuffles_lo[LP_MAX_VECTOR_LENGTH];
- LLVMValueRef shuffles_hi[LP_MAX_VECTOR_LENGTH];
- LLVMValueRef shuffle_lo, shuffle_hi;
- LLVMValueRef s_fpart_lo, s_fpart_hi;
- LLVMValueRef t_fpart_lo = NULL, t_fpart_hi = NULL;
- LLVMValueRef r_fpart_lo = NULL, r_fpart_hi = NULL;
- LLVMValueRef neighbors_lo[2][2][2]; /* [z][y][x] */
- LLVMValueRef neighbors_hi[2][2][2]; /* [z][y][x] */
- LLVMValueRef packed_lo, packed_hi;
+ LLVMValueRef shuffles[LP_MAX_VECTOR_LENGTH];
+ LLVMValueRef shuffle;
+ LLVMValueRef neighbors[2][2][2]; /* [z][y][x] */
+ LLVMValueRef packed;
unsigned i, j, k;
unsigned numj, numk;
- lp_build_context_init(&h16, bld->gallivm, lp_type_ufixed(16, bld->vector_width));
lp_build_context_init(&u8n, bld->gallivm, lp_type_unorm(8, bld->vector_width));
- h16_vec_type = lp_build_vec_type(bld->gallivm, h16.type);
u8n_vec_type = lp_build_vec_type(bld->gallivm, u8n.type);
/*
*
* s_fpart = {s0, s1, s2, s3}
*
- * into 8 x i16
- *
- * s_fpart = {00, s0, 00, s1, 00, s2, 00, s3}
+ * where each value is between 0 and 0xff,
*
- * into two 8 x i16
+ * into one 16 x i20
*
- * s_fpart_lo = {s0, s0, s0, s0, s1, s1, s1, s1}
- * s_fpart_hi = {s2, s2, s2, s2, s3, s3, s3, s3}
+ * s_fpart = {s0, s0, s0, s0, s1, s1, s1, s1, s2, s2, s2, s2, s3, s3, s3, s3}
*
* and likewise for t_fpart. There is no risk of loosing precision here
* since the fractional parts only use the lower 8bits.
*/
- s_fpart = LLVMBuildBitCast(builder, s_fpart, h16_vec_type, "");
+ s_fpart = LLVMBuildBitCast(builder, s_fpart, u8n_vec_type, "");
if (dims >= 2)
- t_fpart = LLVMBuildBitCast(builder, t_fpart, h16_vec_type, "");
+ t_fpart = LLVMBuildBitCast(builder, t_fpart, u8n_vec_type, "");
if (dims >= 3)
- r_fpart = LLVMBuildBitCast(builder, r_fpart, h16_vec_type, "");
+ r_fpart = LLVMBuildBitCast(builder, r_fpart, u8n_vec_type, "");
- for (j = 0; j < h16.type.length; j += 4) {
+ for (j = 0; j < u8n.type.length; j += 4) {
#ifdef PIPE_ARCH_LITTLE_ENDIAN
unsigned subindex = 0;
#else
- unsigned subindex = 1;
+ unsigned subindex = 3;
#endif
LLVMValueRef index;
- index = LLVMConstInt(elem_type, j/2 + subindex, 0);
+ index = LLVMConstInt(elem_type, j + subindex, 0);
for (i = 0; i < 4; ++i)
- shuffles_lo[j + i] = index;
-
- index = LLVMConstInt(elem_type, h16.type.length/2 + j/2 + subindex, 0);
- for (i = 0; i < 4; ++i)
- shuffles_hi[j + i] = index;
+ shuffles[j + i] = index;
}
- shuffle_lo = LLVMConstVector(shuffles_lo, h16.type.length);
- shuffle_hi = LLVMConstVector(shuffles_hi, h16.type.length);
+ shuffle = LLVMConstVector(shuffles, u8n.type.length);
- s_fpart_lo = LLVMBuildShuffleVector(builder, s_fpart, h16.undef,
- shuffle_lo, "");
- s_fpart_hi = LLVMBuildShuffleVector(builder, s_fpart, h16.undef,
- shuffle_hi, "");
+ s_fpart = LLVMBuildShuffleVector(builder, s_fpart, u8n.undef,
+ shuffle, "");
if (dims >= 2) {
- t_fpart_lo = LLVMBuildShuffleVector(builder, t_fpart, h16.undef,
- shuffle_lo, "");
- t_fpart_hi = LLVMBuildShuffleVector(builder, t_fpart, h16.undef,
- shuffle_hi, "");
+ t_fpart = LLVMBuildShuffleVector(builder, t_fpart, u8n.undef,
+ shuffle, "");
}
if (dims >= 3) {
- r_fpart_lo = LLVMBuildShuffleVector(builder, r_fpart, h16.undef,
- shuffle_lo, "");
- r_fpart_hi = LLVMBuildShuffleVector(builder, r_fpart, h16.undef,
- shuffle_hi, "");
+ r_fpart = LLVMBuildShuffleVector(builder, r_fpart, u8n.undef,
+ shuffle, "");
}
/*
LLVMValueRef rgba8;
if (util_format_is_rgba8_variant(bld->format_desc)) {
+ struct lp_type fetch_type;
/*
* Given the format is a rgba8, just read the pixels as is,
* without any swizzling. Swizzling will be done later.
*/
+ fetch_type = lp_type_uint(bld->texel_type.width);
rgba8 = lp_build_gather(bld->gallivm,
bld->texel_type.length,
bld->format_desc->block.bits,
- bld->texel_type.width,
- data_ptr, offset[k][j][i]);
+ fetch_type,
+ TRUE,
+ data_ptr, offset[k][j][i], TRUE);
rgba8 = LLVMBuildBitCast(builder, rgba8, u8n_vec_type, "");
}
rgba8 = lp_build_fetch_rgba_aos(bld->gallivm,
bld->format_desc,
u8n.type,
+ TRUE,
data_ptr, offset[k][j][i],
x_subcoord[i],
- y_subcoord[j]);
+ y_subcoord[j],
+ bld->cache);
}
- /* Expand one 4*rgba8 to two 2*rgba16 */
- lp_build_unpack2(bld->gallivm, u8n.type, h16.type,
- rgba8,
- &neighbors_lo[k][j][i], &neighbors_hi[k][j][i]);
+ neighbors[k][j][i] = rgba8;
}
}
}
*/
if (bld->static_sampler_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]);
+ packed = lp_build_lerp(&u8n,
+ t_fpart,
+ neighbors[0][0][0],
+ neighbors[0][0][1],
+ LP_BLD_LERP_PRESCALED_WEIGHTS);
}
else if (bld->static_sampler_state->force_nearest_t) {
/* special case 1-D lerp */
- 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]);
+ packed = lp_build_lerp(&u8n,
+ s_fpart,
+ neighbors[0][0][0],
+ neighbors[0][0][1],
+ LP_BLD_LERP_PRESCALED_WEIGHTS);
}
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 {
+ packed = lp_build_lerp(&u8n,
+ s_fpart,
+ neighbors[0][0][0],
+ neighbors[0][0][1],
+ LP_BLD_LERP_PRESCALED_WEIGHTS);
+ } else if (dims == 2) {
/* 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);
- }
+ packed = lp_build_lerp_2d(&u8n,
+ s_fpart, t_fpart,
+ neighbors[0][0][0],
+ neighbors[0][0][1],
+ neighbors[0][1][0],
+ neighbors[0][1][1],
+ LP_BLD_LERP_PRESCALED_WEIGHTS);
+ } else {
+ /* 3-D lerp */
+ assert(dims == 3);
+ packed = lp_build_lerp_3d(&u8n,
+ s_fpart, t_fpart, r_fpart,
+ neighbors[0][0][0],
+ neighbors[0][0][1],
+ neighbors[0][1][0],
+ neighbors[0][1][1],
+ neighbors[1][0][0],
+ neighbors[1][0][1],
+ neighbors[1][1][0],
+ neighbors[1][1][1],
+ LP_BLD_LERP_PRESCALED_WEIGHTS);
}
}
- *colors_lo = packed_lo;
- *colors_hi = packed_hi;
+ *colors = packed;
}
/**
LLVMValueRef s,
LLVMValueRef t,
LLVMValueRef r,
- LLVMValueRef *colors_lo,
- LLVMValueRef *colors_hi)
+ const LLVMValueRef *offsets,
+ LLVMValueRef *colors)
{
const unsigned dims = bld->dims;
LLVMBuilderRef builder = bld->gallivm->builder;
struct lp_build_context i32;
- LLVMTypeRef i32_vec_type;
LLVMValueRef i32_c8, i32_c128, i32_c255;
LLVMValueRef width_vec, height_vec, depth_vec;
LLVMValueRef s_ipart, s_fpart, s_float;
lp_build_context_init(&i32, bld->gallivm, lp_type_int_vec(32, bld->vector_width));
- i32_vec_type = lp_build_vec_type(bld->gallivm, i32.type);
-
lp_build_extract_image_sizes(bld,
&bld->int_size_bld,
bld->int_coord_type,
}
/* convert float to int */
- s = LLVMBuildFPToSI(builder, s, i32_vec_type, "");
+ /* For correct rounding, need round to nearest, not truncation here.
+ * Note that in some cases (clamp to edge, no texel offsets) we
+ * could use a non-signed build context which would help archs which
+ * don't have fptosi intrinsic with nearest rounding implemented.
+ */
+ s = lp_build_iround(&bld->coord_bld, s);
if (dims >= 2)
- t = LLVMBuildFPToSI(builder, t, i32_vec_type, "");
+ t = lp_build_iround(&bld->coord_bld, t);
if (dims >= 3)
- r = LLVMBuildFPToSI(builder, r, i32_vec_type, "");
+ r = lp_build_iround(&bld->coord_bld, r);
/* subtract 0.5 (add -128) */
i32_c128 = lp_build_const_int_vec(bld->gallivm, i32.type, -128);
if (dims >= 3)
r_ipart = LLVMBuildAShr(builder, r, i32_c8, "");
+ /* add texel offsets */
+ if (offsets[0]) {
+ s_ipart = lp_build_add(&i32, s_ipart, offsets[0]);
+ if (dims >= 2) {
+ t_ipart = lp_build_add(&i32, t_ipart, offsets[1]);
+ if (dims >= 3) {
+ r_ipart = lp_build_add(&i32, r_ipart, offsets[2]);
+ }
+ }
+ }
+
/* compute fractional part (AND with 0xff) */
i32_c255 = lp_build_const_int_vec(bld->gallivm, i32.type, 255);
s_fpart = LLVMBuildAnd(builder, s, i32_c255, "");
lp_build_sample_wrap_linear_int(bld,
bld->format_desc->block.width,
s_ipart, &s_fpart, s_float,
- width_vec, x_stride,
+ width_vec, x_stride, offsets[0],
bld->static_texture_state->pot_width,
bld->static_sampler_state->wrap_s,
&x_offset0, &x_offset1,
&x_subcoord[0], &x_subcoord[1]);
/* add potential cube/array/mip offsets now as they are constant per pixel */
- 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) {
+ if (has_layer_coord(bld->static_texture_state->target)) {
LLVMValueRef z_offset;
z_offset = lp_build_mul(&bld->int_coord_bld, r, img_stride_vec);
/* The r coord is the cube face in [0,5] or array layer */
lp_build_sample_wrap_linear_int(bld,
bld->format_desc->block.height,
t_ipart, &t_fpart, t_float,
- height_vec, y_stride,
+ height_vec, y_stride, offsets[1],
bld->static_texture_state->pot_height,
bld->static_sampler_state->wrap_t,
&y_offset0, &y_offset1,
if (dims >= 3) {
lp_build_sample_wrap_linear_int(bld,
- bld->format_desc->block.height,
+ 1, /* block length (depth) */
r_ipart, &r_fpart, r_float,
- depth_vec, z_stride,
+ depth_vec, z_stride, offsets[2],
bld->static_texture_state->pot_depth,
bld->static_sampler_state->wrap_r,
&z_offset0, &z_offset1,
lp_build_sample_fetch_image_linear(bld, data_ptr, offset,
x_subcoord, y_subcoord,
s_fpart, t_fpart, r_fpart,
- colors_lo, colors_hi);
-}
-
-
-/**
- * Sample a single texture image with (bi-)(tri-)linear sampling.
- * Return filtered color as two vectors of 16-bit fixed point values.
- * Does address calcs (except offsets) with floats.
- * Useful for AVX which has support for 8x32 floats but not 8x32 ints.
- */
-static void
-lp_build_sample_image_linear_afloat(struct lp_build_sample_context *bld,
- LLVMValueRef int_size,
- LLVMValueRef row_stride_vec,
- LLVMValueRef img_stride_vec,
- LLVMValueRef data_ptr,
- LLVMValueRef mipoffsets,
- LLVMValueRef s,
- LLVMValueRef t,
- LLVMValueRef r,
- LLVMValueRef *colors_lo,
- LLVMValueRef *colors_hi)
-{
- const unsigned dims = bld->dims;
- LLVMValueRef width_vec, height_vec, depth_vec;
- LLVMValueRef s_fpart;
- LLVMValueRef t_fpart = NULL;
- LLVMValueRef r_fpart = NULL;
- LLVMValueRef x_stride, y_stride, z_stride;
- LLVMValueRef x_offset0, x_offset1;
- LLVMValueRef y_offset0, y_offset1;
- LLVMValueRef z_offset0, z_offset1;
- LLVMValueRef offset[2][2][2]; /* [z][y][x] */
- LLVMValueRef x_subcoord[2], y_subcoord[2];
- LLVMValueRef flt_size;
- LLVMValueRef x_icoord0, x_icoord1;
- LLVMValueRef y_icoord0, y_icoord1;
- LLVMValueRef z_icoord0, z_icoord1;
- unsigned x, y, z;
-
- flt_size = lp_build_int_to_float(&bld->float_size_bld, int_size);
-
- lp_build_extract_image_sizes(bld,
- &bld->float_size_bld,
- bld->coord_type,
- flt_size,
- &width_vec,
- &height_vec,
- &depth_vec);
-
- /* do texcoord wrapping and compute texel offsets */
- lp_build_sample_wrap_linear_float(bld,
- bld->format_desc->block.width,
- s, width_vec,
- bld->static_texture_state->pot_width,
- bld->static_sampler_state->wrap_s,
- &x_icoord0, &x_icoord1,
- &s_fpart,
- bld->static_sampler_state->force_nearest_s);
-
- if (dims >= 2) {
- lp_build_sample_wrap_linear_float(bld,
- bld->format_desc->block.height,
- t, height_vec,
- bld->static_texture_state->pot_height,
- bld->static_sampler_state->wrap_t,
- &y_icoord0, &y_icoord1,
- &t_fpart,
- bld->static_sampler_state->force_nearest_t);
-
- if (dims >= 3) {
- lp_build_sample_wrap_linear_float(bld,
- bld->format_desc->block.height,
- r, depth_vec,
- bld->static_texture_state->pot_depth,
- bld->static_sampler_state->wrap_r,
- &z_icoord0, &z_icoord1,
- &r_fpart, 0);
- }
- }
-
- /*
- * From here on we deal with ints, and we should split up the 256bit
- * vectors manually for better generated code.
- */
-
- /* get pixel, row and image strides */
- x_stride = lp_build_const_vec(bld->gallivm,
- bld->int_coord_bld.type,
- bld->format_desc->block.bits/8);
- y_stride = row_stride_vec;
- z_stride = img_stride_vec;
-
- /*
- * compute texel offset -
- * cannot do offset calc with floats, difficult for block-based formats,
- * and not enough precision anyway.
- */
- lp_build_sample_partial_offset(&bld->int_coord_bld,
- bld->format_desc->block.width,
- x_icoord0, x_stride,
- &x_offset0, &x_subcoord[0]);
- lp_build_sample_partial_offset(&bld->int_coord_bld,
- bld->format_desc->block.width,
- x_icoord1, x_stride,
- &x_offset1, &x_subcoord[1]);
-
- /* add potential cube/array/mip offsets now as they are constant per pixel */
- 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) {
- LLVMValueRef z_offset;
- z_offset = lp_build_mul(&bld->int_coord_bld, r, img_stride_vec);
- /* The r coord is the cube face in [0,5] or array layer */
- x_offset0 = lp_build_add(&bld->int_coord_bld, x_offset0, z_offset);
- x_offset1 = lp_build_add(&bld->int_coord_bld, x_offset1, z_offset);
- }
- if (mipoffsets) {
- x_offset0 = lp_build_add(&bld->int_coord_bld, x_offset0, mipoffsets);
- x_offset1 = lp_build_add(&bld->int_coord_bld, x_offset1, mipoffsets);
- }
-
- for (z = 0; z < 2; z++) {
- for (y = 0; y < 2; y++) {
- offset[z][y][0] = x_offset0;
- offset[z][y][1] = x_offset1;
- }
- }
-
- if (dims >= 2) {
- lp_build_sample_partial_offset(&bld->int_coord_bld,
- bld->format_desc->block.height,
- y_icoord0, y_stride,
- &y_offset0, &y_subcoord[0]);
- lp_build_sample_partial_offset(&bld->int_coord_bld,
- bld->format_desc->block.height,
- y_icoord1, y_stride,
- &y_offset1, &y_subcoord[1]);
- for (z = 0; z < 2; z++) {
- for (x = 0; x < 2; x++) {
- 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->int_coord_bld,
- offset[z][1][x], y_offset1);
- }
- }
- }
-
- if (dims >= 3) {
- LLVMValueRef z_subcoord[2];
- lp_build_sample_partial_offset(&bld->int_coord_bld,
- 1,
- z_icoord0, z_stride,
- &z_offset0, &z_subcoord[0]);
- lp_build_sample_partial_offset(&bld->int_coord_bld,
- 1,
- z_icoord1, z_stride,
- &z_offset1, &z_subcoord[1]);
- for (y = 0; y < 2; y++) {
- for (x = 0; x < 2; x++) {
- 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->int_coord_bld,
- offset[1][y][x], z_offset1);
- }
- }
- }
-
- lp_build_sample_fetch_image_linear(bld, data_ptr, offset,
- x_subcoord, y_subcoord,
- s_fpart, t_fpart, r_fpart,
- colors_lo, colors_hi);
+ colors);
}
LLVMValueRef s,
LLVMValueRef t,
LLVMValueRef r,
+ const LLVMValueRef *offsets,
LLVMValueRef ilevel0,
LLVMValueRef ilevel1,
LLVMValueRef lod_fpart,
- LLVMValueRef colors_lo_var,
- LLVMValueRef colors_hi_var)
+ LLVMValueRef colors_var)
{
LLVMBuilderRef builder = bld->gallivm->builder;
LLVMValueRef size0;
LLVMValueRef data_ptr1;
LLVMValueRef mipoff0 = NULL;
LLVMValueRef mipoff1 = NULL;
- LLVMValueRef colors0_lo, colors0_hi;
- LLVMValueRef colors1_lo, colors1_hi;
+ LLVMValueRef colors0;
+ LLVMValueRef colors1;
/* sample the first mipmap level */
lp_build_mipmap_level_sizes(bld, ilevel0,
&size0,
&row_stride0_vec, &img_stride0_vec);
- if (bld->num_lods == 1) {
+ if (bld->num_mips == 1) {
data_ptr0 = lp_build_get_mipmap_level(bld, ilevel0);
}
else {
mipoff0 = lp_build_get_mip_offsets(bld, ilevel0);
}
- if (util_cpu_caps.has_avx && bld->coord_type.length > 4) {
- if (img_filter == PIPE_TEX_FILTER_NEAREST) {
- lp_build_sample_image_nearest_afloat(bld,
- size0,
- row_stride0_vec, img_stride0_vec,
- data_ptr0, mipoff0, s, t, r,
- &colors0_lo, &colors0_hi);
- }
- else {
- assert(img_filter == PIPE_TEX_FILTER_LINEAR);
- lp_build_sample_image_linear_afloat(bld,
- size0,
- row_stride0_vec, img_stride0_vec,
- data_ptr0, mipoff0, s, t, r,
- &colors0_lo, &colors0_hi);
- }
+ if (img_filter == PIPE_TEX_FILTER_NEAREST) {
+ lp_build_sample_image_nearest(bld,
+ size0,
+ row_stride0_vec, img_stride0_vec,
+ data_ptr0, mipoff0, s, t, r, offsets,
+ &colors0);
}
else {
- if (img_filter == PIPE_TEX_FILTER_NEAREST) {
- lp_build_sample_image_nearest(bld,
- size0,
- row_stride0_vec, img_stride0_vec,
- data_ptr0, mipoff0, s, t, r,
- &colors0_lo, &colors0_hi);
- }
- else {
- assert(img_filter == PIPE_TEX_FILTER_LINEAR);
- lp_build_sample_image_linear(bld,
- size0,
- row_stride0_vec, img_stride0_vec,
- data_ptr0, mipoff0, s, t, r,
- &colors0_lo, &colors0_hi);
- }
+ assert(img_filter == PIPE_TEX_FILTER_LINEAR);
+ lp_build_sample_image_linear(bld,
+ size0,
+ row_stride0_vec, img_stride0_vec,
+ data_ptr0, mipoff0, s, t, r, offsets,
+ &colors0);
}
/* Store the first level's colors in the output variables */
- LLVMBuildStore(builder, colors0_lo, colors_lo_var);
- LLVMBuildStore(builder, colors0_hi, colors_hi_var);
+ LLVMBuildStore(builder, colors0, colors_var);
if (mip_filter == PIPE_TEX_MIPFILTER_LINEAR) {
LLVMValueRef h16vec_scale = lp_build_const_vec(bld->gallivm,
- bld->perquadf_bld.type, 256.0);
- LLVMTypeRef i32vec_type = lp_build_vec_type(bld->gallivm, bld->perquadi_bld.type);
+ bld->lodf_bld.type, 256.0);
+ LLVMTypeRef i32vec_type = bld->lodi_bld.vec_type;
struct lp_build_if_state if_ctx;
LLVMValueRef need_lerp;
unsigned num_quads = bld->coord_bld.type.length / 4;
lod_fpart = LLVMBuildFPToSI(builder, lod_fpart, i32vec_type, "lod_fpart.fixed16");
/* need_lerp = lod_fpart > 0 */
- if (num_quads == 1) {
+ if (bld->num_lods == 1) {
need_lerp = LLVMBuildICmp(builder, LLVMIntSGT,
- lod_fpart, bld->perquadi_bld.zero,
+ lod_fpart, bld->lodi_bld.zero,
"need_lerp");
}
else {
* lod_fpart values have same sign.
* We can however then skip the greater than comparison.
*/
- lod_fpart = lp_build_max(&bld->perquadi_bld, lod_fpart,
- bld->perquadi_bld.zero);
- need_lerp = lp_build_any_true_range(&bld->perquadi_bld, num_quads, lod_fpart);
+ lod_fpart = lp_build_max(&bld->lodi_bld, lod_fpart,
+ bld->lodi_bld.zero);
+ need_lerp = lp_build_any_true_range(&bld->lodi_bld, bld->num_lods, lod_fpart);
}
lp_build_if(&if_ctx, bld->gallivm, need_lerp);
{
- struct lp_build_context h16_bld;
+ struct lp_build_context u8n_bld;
- lp_build_context_init(&h16_bld, bld->gallivm, lp_type_ufixed(16, bld->vector_width));
+ lp_build_context_init(&u8n_bld, bld->gallivm, lp_type_unorm(8, bld->vector_width));
/* sample the second mipmap level */
lp_build_mipmap_level_sizes(bld, ilevel1,
&size1,
&row_stride1_vec, &img_stride1_vec);
- lp_build_mipmap_level_sizes(bld, ilevel1,
- &size1,
- &row_stride1_vec, &img_stride1_vec);
- if (bld->num_lods == 1) {
+ if (bld->num_mips == 1) {
data_ptr1 = lp_build_get_mipmap_level(bld, ilevel1);
}
else {
mipoff1 = lp_build_get_mip_offsets(bld, ilevel1);
}
- if (util_cpu_caps.has_avx && bld->coord_type.length > 4) {
- if (img_filter == PIPE_TEX_FILTER_NEAREST) {
- lp_build_sample_image_nearest_afloat(bld,
- size1,
- row_stride1_vec, img_stride1_vec,
- data_ptr1, mipoff1, s, t, r,
- &colors1_lo, &colors1_hi);
- }
- else {
- lp_build_sample_image_linear_afloat(bld,
- size1,
- row_stride1_vec, img_stride1_vec,
- data_ptr1, mipoff1, s, t, r,
- &colors1_lo, &colors1_hi);
- }
+ if (img_filter == PIPE_TEX_FILTER_NEAREST) {
+ lp_build_sample_image_nearest(bld,
+ size1,
+ row_stride1_vec, img_stride1_vec,
+ data_ptr1, mipoff1, s, t, r, offsets,
+ &colors1);
}
else {
- if (img_filter == PIPE_TEX_FILTER_NEAREST) {
- lp_build_sample_image_nearest(bld,
- size1,
- row_stride1_vec, img_stride1_vec,
- data_ptr1, mipoff1, s, t, r,
- &colors1_lo, &colors1_hi);
- }
- else {
- lp_build_sample_image_linear(bld,
- size1,
- row_stride1_vec, img_stride1_vec,
- data_ptr1, mipoff1, s, t, r,
- &colors1_lo, &colors1_hi);
- }
+ lp_build_sample_image_linear(bld,
+ size1,
+ row_stride1_vec, img_stride1_vec,
+ data_ptr1, mipoff1, s, t, r, offsets,
+ &colors1);
}
/* interpolate samples from the two mipmap levels */
- if (num_quads == 1) {
- 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;
- assert(h16_bld.type.length <= Elements(shuffles));
- for (i = 0; i < h16_bld.type.length; i++)
- shuffles[i] = lp_build_const_int32(bld->gallivm, 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);
+ if (num_quads == 1 && bld->num_lods == 1) {
+ lod_fpart = LLVMBuildTrunc(builder, lod_fpart, u8n_bld.elem_type, "");
+ lod_fpart = lp_build_broadcast_scalar(&u8n_bld, lod_fpart);
}
else {
- LLVMValueRef lod_parts[LP_MAX_VECTOR_LENGTH/16];
- struct lp_type perquadi16_type = bld->perquadi_bld.type;
- perquadi16_type.width /= 2;
- perquadi16_type.length *= 2;
- lod_fpart = LLVMBuildBitCast(builder, lod_fpart,
- lp_build_vec_type(bld->gallivm,
- perquadi16_type), "");
- /* XXX this only works for exactly 2 quads. More quads need shuffle */
- assert(num_quads == 2);
- for (i = 0; i < num_quads; i++) {
- LLVMValueRef indexi2 = lp_build_const_int32(bld->gallivm, i*2);
- lod_parts[i] = lp_build_extract_broadcast(bld->gallivm,
- perquadi16_type,
- h16_bld.type,
- lod_fpart,
- indexi2);
+ unsigned num_chans_per_lod = 4 * bld->coord_type.length / bld->num_lods;
+ LLVMTypeRef tmp_vec_type = LLVMVectorType(u8n_bld.elem_type, bld->lodi_bld.type.length);
+ LLVMValueRef shuffle[LP_MAX_VECTOR_LENGTH];
+
+ /* Take the LSB of lod_fpart */
+ lod_fpart = LLVMBuildTrunc(builder, lod_fpart, tmp_vec_type, "");
+
+ /* Broadcast each lod weight into their respective channels */
+ for (i = 0; i < u8n_bld.type.length; ++i) {
+ shuffle[i] = lp_build_const_int32(bld->gallivm, i / num_chans_per_lod);
}
- colors0_lo = lp_build_lerp(&h16_bld, lod_parts[0],
- colors0_lo, colors1_lo);
- colors0_hi = lp_build_lerp(&h16_bld, lod_parts[1],
- colors0_hi, colors1_hi);
+ lod_fpart = LLVMBuildShuffleVector(builder, lod_fpart, LLVMGetUndef(tmp_vec_type),
+ LLVMConstVector(shuffle, u8n_bld.type.length), "");
}
- LLVMBuildStore(builder, colors0_lo, colors_lo_var);
- LLVMBuildStore(builder, colors0_hi, colors_hi_var);
+ colors0 = lp_build_lerp(&u8n_bld, lod_fpart,
+ colors0, colors1,
+ LP_BLD_LERP_PRESCALED_WEIGHTS);
+
+ LLVMBuildStore(builder, colors0, colors_var);
}
lp_build_endif(&if_ctx);
}
*/
void
lp_build_sample_aos(struct lp_build_sample_context *bld,
- unsigned unit,
+ unsigned sampler_unit,
LLVMValueRef s,
LLVMValueRef t,
LLVMValueRef r,
- LLVMValueRef lod_ipart,
+ const LLVMValueRef *offsets,
+ LLVMValueRef lod_positive,
LLVMValueRef lod_fpart,
LLVMValueRef ilevel0,
LLVMValueRef ilevel1,
LLVMValueRef texel_out[4])
{
- struct lp_build_context *int_bld = &bld->int_bld;
LLVMBuilderRef builder = bld->gallivm->builder;
const unsigned mip_filter = bld->static_sampler_state->min_mip_filter;
const unsigned min_filter = bld->static_sampler_state->min_img_filter;
const unsigned mag_filter = bld->static_sampler_state->mag_img_filter;
const unsigned dims = bld->dims;
- LLVMValueRef packed, packed_lo, packed_hi;
+ LLVMValueRef packed_var, packed;
LLVMValueRef unswizzled[4];
- struct lp_build_context h16_bld;
+ struct lp_build_context u8n_bld;
/* we only support the common/simple wrap modes at this time */
assert(lp_is_simple_wrap_mode(bld->static_sampler_state->wrap_s));
assert(lp_is_simple_wrap_mode(bld->static_sampler_state->wrap_r));
- /* make 16-bit fixed-pt builder context */
- lp_build_context_init(&h16_bld, bld->gallivm, lp_type_ufixed(16, bld->vector_width));
+ /* make 8-bit unorm builder context */
+ lp_build_context_init(&u8n_bld, bld->gallivm, lp_type_unorm(8, bld->vector_width));
/*
* Get/interpolate texture colors.
*/
- packed_lo = lp_build_alloca(bld->gallivm, h16_bld.vec_type, "packed_lo");
- packed_hi = lp_build_alloca(bld->gallivm, h16_bld.vec_type, "packed_hi");
+ packed_var = lp_build_alloca(bld->gallivm, u8n_bld.vec_type, "packed_var");
if (min_filter == mag_filter) {
/* no need to distinguish between minification and magnification */
lp_build_sample_mipmap(bld,
min_filter, mip_filter,
- s, t, r,
+ s, t, r, offsets,
ilevel0, ilevel1, lod_fpart,
- packed_lo, packed_hi);
+ packed_var);
}
else {
/* Emit conditional to choose min image filter or mag image filter
* depending on the lod being > 0 or <= 0, respectively.
*/
struct lp_build_if_state if_ctx;
- LLVMValueRef minify;
/*
- * XXX this should to all lods into account, if some are min
- * some max probably could hack up the coords/weights in the linear
+ * FIXME this should take all lods into account, if some are min
+ * some max probably could hack up the weights in the linear
* path with selects to work for nearest.
- * If that's just two quads sitting next to each other it seems
- * quite ok to do the same filtering method on both though, at
- * least unless we have explicit lod (and who uses different
- * min/mag filter with that?)
*/
if (bld->num_lods > 1)
- lod_ipart = LLVMBuildExtractElement(builder, lod_ipart,
- lp_build_const_int32(bld->gallivm, 0), "");
+ lod_positive = LLVMBuildExtractElement(builder, lod_positive,
+ lp_build_const_int32(bld->gallivm, 0), "");
- /* minify = lod >= 0.0 */
- minify = LLVMBuildICmp(builder, LLVMIntSGE,
- lod_ipart, int_bld->zero, "");
+ lod_positive = LLVMBuildTrunc(builder, lod_positive,
+ LLVMInt1TypeInContext(bld->gallivm->context), "");
- lp_build_if(&if_ctx, bld->gallivm, minify);
+ lp_build_if(&if_ctx, bld->gallivm, lod_positive);
{
/* Use the minification filter */
lp_build_sample_mipmap(bld,
min_filter, mip_filter,
- s, t, r,
+ s, t, r, offsets,
ilevel0, ilevel1, lod_fpart,
- packed_lo, packed_hi);
+ packed_var);
}
lp_build_else(&if_ctx);
{
/* Use the magnification filter */
lp_build_sample_mipmap(bld,
mag_filter, PIPE_TEX_MIPFILTER_NONE,
- s, t, r,
+ s, t, r, offsets,
ilevel0, NULL, NULL,
- packed_lo, packed_hi);
+ packed_var);
}
lp_build_endif(&if_ctx);
}
- /*
- * combine the values stored in 'packed_lo' and 'packed_hi' variables
- * into 'packed'
- */
- packed = lp_build_pack2(bld->gallivm,
- h16_bld.type, lp_type_unorm(8, bld->vector_width),
- LLVMBuildLoad(builder, packed_lo, ""),
- LLVMBuildLoad(builder, packed_hi, ""));
+ packed = LLVMBuildLoad(builder, packed_var, "");
/*
* Convert to SoA and swizzle.
projects / mesa.git / blobdiff