}
-/**
- * Build LLVM code for texture coord wrapping, for nearest filtering,
- * for float texcoords.
- * \param coord the incoming texcoord (s,t or r)
- * \param length the texture size along one dimension
- * \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 icoord the texcoord after wrapping, as int
- */
-static void
-lp_build_sample_wrap_nearest_float(struct lp_build_sample_context *bld,
- LLVMValueRef coord,
- LLVMValueRef length,
- LLVMValueRef offset,
- boolean is_pot,
- unsigned wrap_mode,
- LLVMValueRef *icoord)
-{
- struct lp_build_context *coord_bld = &bld->coord_bld;
- LLVMValueRef length_minus_one;
-
- switch(wrap_mode) {
- case PIPE_TEX_WRAP_REPEAT:
- if (offset) {
- /* this is definitely not ideal for POT case */
- offset = lp_build_int_to_float(coord_bld, offset);
- offset = lp_build_div(coord_bld, offset, length);
- coord = lp_build_add(coord_bld, coord, offset);
- }
- /* 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);
- }
- if (offset) {
- offset = lp_build_int_to_float(coord_bld, offset);
- coord = lp_build_add(coord_bld, coord, offset);
- }
- coord = lp_build_clamp(coord_bld, coord, coord_bld->zero,
- length_minus_one);
- *icoord = lp_build_itrunc(coord_bld, coord);
- break;
-
- 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);
- }
-}
-
-
/**
* Helper to compute the first coord and the weight for
* linear wrap repeat npot textures
}
-/**
- * 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 or r)
- * \param length the texture size along one dimension
- * \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 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,
- LLVMValueRef offset,
- 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 (offset) {
- offset = lp_build_int_to_float(coord_bld, offset);
- coord = lp_build_add(coord_bld, coord, offset);
- }
- 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;
- if (offset) {
- offset = lp_build_int_to_float(coord_bld, offset);
- offset = lp_build_div(coord_bld, offset, length);
- coord = lp_build_add(coord_bld, coord, offset);
- }
- /* 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);
- /*
- * It is important for this comparison to be unordered
- * (or need fract_safe above).
- */
- 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);
- }
- if (offset) {
- offset = lp_build_int_to_float(coord_bld, offset);
- coord = lp_build_add(coord_bld, coord, offset);
- }
- /* subtract 0.5 */
- if (!force_nearest) {
- coord = lp_build_sub(coord_bld, coord, half);
- }
- /* clamp to [0, length - 1] */
- coord = lp_build_min_ext(coord_bld, coord, length_minus_one,
- GALLIVM_NAN_RETURN_OTHER_SECOND_NONNAN);
- 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.
}
-/**
- * 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,
- const LLVMValueRef *offsets,
- LLVMValueRef *colors)
- {
- 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, offsets[0],
- 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, offsets[1],
- 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, offsets[2],
- bld->static_texture_state->pot_depth,
- bld->static_sampler_state->wrap_r,
- &z_icoord);
- }
- }
- if (has_layer_coord(bld->static_texture_state->target)) {
- 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);
-}
-
-
/**
* Fetch texels for image with linear sampling.
* Return filtered color as two vectors of 16-bit fixed point values.
}
-/**
- * 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,
- const LLVMValueRef *offsets,
- LLVMValueRef *colors)
-{
- 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, offsets[0],
- 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, offsets[1],
- 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,
- 1, /* block length (depth) */
- r, depth_vec, offsets[2],
- 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 (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 */
- 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);
-}
-
-
/**
* Sample the texture/mipmap using given image filter and mip filter.
* data0_ptr and data1_ptr point to the two mipmap levels to sample
LLVMValueRef mipoff1 = NULL;
LLVMValueRef colors0;
LLVMValueRef colors1;
- boolean use_floats = util_cpu_caps.has_avx &&
- !util_cpu_caps.has_avx2 &&
- bld->coord_type.length > 4;
/* sample the first mipmap level */
lp_build_mipmap_level_sizes(bld, ilevel0,
mipoff0 = lp_build_get_mip_offsets(bld, ilevel0);
}
- if (use_floats) {
- 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, offsets,
- &colors0);
- }
- 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, offsets,
- &colors0);
- }
+ 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, offsets,
- &colors0);
- }
- 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, offsets,
- &colors0);
- }
+ 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 */
mipoff1 = lp_build_get_mip_offsets(bld, ilevel1);
}
- if (use_floats) {
- 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, offsets,
- &colors1);
- }
- else {
- lp_build_sample_image_linear_afloat(bld,
- size1,
- row_stride1_vec, img_stride1_vec,
- data_ptr1, mipoff1, s, t, r, offsets,
- &colors1);
- }
+ 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, offsets,
- &colors1);
- }
- else {
- lp_build_sample_image_linear(bld,
- size1,
- row_stride1_vec, img_stride1_vec,
- data_ptr1, mipoff1, s, t, r, offsets,
- &colors1);
- }
+ 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 */
projects / mesa.git / commitdiff