diff options
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/Makefile | 1 | ||||
| -rw-r--r-- | src/gallium/drivers/llvmpipe/SConscript | 1 | ||||
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_bld_conv.c | 240 | ||||
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_bld_pack.c | 419 | ||||
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_bld_pack.h | 95 |
5 files changed, 519 insertions, 237 deletions
diff --git a/src/gallium/drivers/llvmpipe/Makefile b/src/gallium/drivers/llvmpipe/Makefile index 21aff1967a..b96ee23a99 100644 --- a/src/gallium/drivers/llvmpipe/Makefile +++ b/src/gallium/drivers/llvmpipe/Makefile @@ -21,6 +21,7 @@ C_SOURCES = \ lp_bld_interp.c \ lp_bld_intr.c \ lp_bld_logic.c \ + lp_bld_pack.c \ lp_bld_sample_soa.c \ lp_bld_swizzle.c \ lp_bld_struct.c \ diff --git a/src/gallium/drivers/llvmpipe/SConscript b/src/gallium/drivers/llvmpipe/SConscript index 13cd465838..403e4daa43 100644 --- a/src/gallium/drivers/llvmpipe/SConscript +++ b/src/gallium/drivers/llvmpipe/SConscript @@ -33,6 +33,7 @@ llvmpipe = env.ConvenienceLibrary( 'lp_bld_format_soa.c', 'lp_bld_interp.c', 'lp_bld_intr.c', + 'lp_bld_pack.c', 'lp_bld_sample_soa.c', 'lp_bld_struct.c', 'lp_bld_logic.c', diff --git a/src/gallium/drivers/llvmpipe/lp_bld_conv.c b/src/gallium/drivers/llvmpipe/lp_bld_conv.c index 20c8710214..9935209437 100644 --- a/src/gallium/drivers/llvmpipe/lp_bld_conv.c +++ b/src/gallium/drivers/llvmpipe/lp_bld_conv.c @@ -69,6 +69,7 @@ #include "lp_bld_const.h" #include "lp_bld_intr.h" #include "lp_bld_arit.h" +#include "lp_bld_pack.h" #include "lp_bld_conv.h" @@ -199,241 +200,6 @@ lp_build_unsigned_norm_to_float(LLVMBuilderRef builder, /** - * Build shuffle vectors that match PUNPCKLxx and PUNPCKHxx instructions. - */ -static LLVMValueRef -lp_build_const_unpack_shuffle(unsigned n, unsigned lo_hi) -{ - LLVMValueRef elems[LP_MAX_VECTOR_LENGTH]; - unsigned i, j; - - assert(n <= LP_MAX_VECTOR_LENGTH); - assert(lo_hi < 2); - - /* TODO: cache results in a static table */ - - for(i = 0, j = lo_hi*n/2; i < n; i += 2, ++j) { - elems[i + 0] = LLVMConstInt(LLVMInt32Type(), 0 + j, 0); - elems[i + 1] = LLVMConstInt(LLVMInt32Type(), n + j, 0); - } - - return LLVMConstVector(elems, n); -} - - -/** - * Build shuffle vectors that match PACKxx instructions. - */ -static LLVMValueRef -lp_build_const_pack_shuffle(unsigned n) -{ - LLVMValueRef elems[LP_MAX_VECTOR_LENGTH]; - unsigned i; - - assert(n <= LP_MAX_VECTOR_LENGTH); - - /* TODO: cache results in a static table */ - - for(i = 0; i < n; ++i) - elems[i] = LLVMConstInt(LLVMInt32Type(), 2*i, 0); - - return LLVMConstVector(elems, n); -} - - -/** - * Expand the bit width. - * - * This will only change the number of bits the values are represented, not the - * values themselves. - */ -static void -lp_build_expand(LLVMBuilderRef builder, - struct lp_type src_type, - struct lp_type dst_type, - LLVMValueRef src, - LLVMValueRef *dst, unsigned num_dsts) -{ - unsigned num_tmps; - unsigned i; - - /* Register width must remain constant */ - assert(src_type.width * src_type.length == dst_type.width * dst_type.length); - - /* We must not loose or gain channels. Only precision */ - assert(src_type.length == dst_type.length * num_dsts); - - num_tmps = 1; - dst[0] = src; - - while(src_type.width < dst_type.width) { - struct lp_type new_type = src_type; - LLVMTypeRef new_vec_type; - - new_type.width *= 2; - new_type.length /= 2; - new_vec_type = lp_build_vec_type(new_type); - - for(i = num_tmps; i--; ) { - LLVMValueRef zero; - LLVMValueRef shuffle_lo; - LLVMValueRef shuffle_hi; - LLVMValueRef lo; - LLVMValueRef hi; - - zero = lp_build_zero(src_type); - shuffle_lo = lp_build_const_unpack_shuffle(src_type.length, 0); - shuffle_hi = lp_build_const_unpack_shuffle(src_type.length, 1); - - /* PUNPCKLBW, PUNPCKHBW */ - lo = LLVMBuildShuffleVector(builder, dst[i], zero, shuffle_lo, ""); - hi = LLVMBuildShuffleVector(builder, dst[i], zero, shuffle_hi, ""); - - dst[2*i + 0] = LLVMBuildBitCast(builder, lo, new_vec_type, ""); - dst[2*i + 1] = LLVMBuildBitCast(builder, hi, new_vec_type, ""); - } - - src_type = new_type; - - num_tmps *= 2; - } - - assert(num_tmps == num_dsts); -} - - -/** - * Non-interleaved pack. - * - * This will move values as - * - * lo = __ l0 __ l1 __ l2 __.. __ ln - * hi = __ h0 __ h1 __ h2 __.. __ hn - * res = l0 l1 l2 .. ln h0 h1 h2 .. hn - * - * TODO: handle saturation consistently. - */ -static LLVMValueRef -lp_build_pack2(LLVMBuilderRef builder, - struct lp_type src_type, - struct lp_type dst_type, - boolean clamped, - LLVMValueRef lo, - LLVMValueRef hi) -{ - LLVMTypeRef src_vec_type = lp_build_vec_type(src_type); - LLVMTypeRef dst_vec_type = lp_build_vec_type(dst_type); - LLVMValueRef shuffle; - LLVMValueRef res; - - /* Register width must remain constant */ - assert(src_type.width * src_type.length == dst_type.width * dst_type.length); - - /* We must not loose or gain channels. Only precision */ - assert(src_type.length * 2 == dst_type.length); - - assert(!src_type.floating); - assert(!dst_type.floating); - - if(util_cpu_caps.has_sse2 && src_type.width * src_type.length == 128) { - /* All X86 non-interleaved pack instructions all take signed inputs and - * saturate them, so saturate beforehand. */ - if(!src_type.sign && !clamped) { - struct lp_build_context bld; - unsigned dst_bits = dst_type.sign ? dst_type.width - 1 : dst_type.width; - LLVMValueRef dst_max = lp_build_int_const_scalar(src_type, ((unsigned long long)1 << dst_bits) - 1); - lp_build_context_init(&bld, builder, src_type); - lo = lp_build_min(&bld, lo, dst_max); - hi = lp_build_min(&bld, hi, dst_max); - } - - switch(src_type.width) { - case 32: - if(dst_type.sign || !util_cpu_caps.has_sse4_1) - res = lp_build_intrinsic_binary(builder, "llvm.x86.sse2.packssdw.128", src_vec_type, lo, hi); - else - /* PACKUSDW is the only instrinsic with a consistent signature */ - return lp_build_intrinsic_binary(builder, "llvm.x86.sse41.packusdw", dst_vec_type, lo, hi); - break; - - case 16: - if(dst_type.sign) - res = lp_build_intrinsic_binary(builder, "llvm.x86.sse2.packsswb.128", src_vec_type, lo, hi); - else - res = lp_build_intrinsic_binary(builder, "llvm.x86.sse2.packuswb.128", src_vec_type, lo, hi); - break; - - default: - assert(0); - return LLVMGetUndef(dst_vec_type); - break; - } - - res = LLVMBuildBitCast(builder, res, dst_vec_type, ""); - return res; - } - - lo = LLVMBuildBitCast(builder, lo, dst_vec_type, ""); - hi = LLVMBuildBitCast(builder, hi, dst_vec_type, ""); - - shuffle = lp_build_const_pack_shuffle(dst_type.length); - - res = LLVMBuildShuffleVector(builder, lo, hi, shuffle, ""); - - return res; -} - - -/** - * Truncate the bit width. - * - * TODO: Handle saturation consistently. - */ -static LLVMValueRef -lp_build_pack(LLVMBuilderRef builder, - struct lp_type src_type, - struct lp_type dst_type, - boolean clamped, - const LLVMValueRef *src, unsigned num_srcs) -{ - LLVMValueRef tmp[LP_MAX_VECTOR_LENGTH]; - unsigned i; - - /* Register width must remain constant */ - assert(src_type.width * src_type.length == dst_type.width * dst_type.length); - - /* We must not loose or gain channels. Only precision */ - assert(src_type.length * num_srcs == dst_type.length); - - for(i = 0; i < num_srcs; ++i) - tmp[i] = src[i]; - - while(src_type.width > dst_type.width) { - struct lp_type new_type = src_type; - - new_type.width /= 2; - new_type.length *= 2; - - /* Take in consideration the sign changes only in the last step */ - if(new_type.width == dst_type.width) - new_type.sign = dst_type.sign; - - num_srcs /= 2; - - for(i = 0; i < num_srcs; ++i) - tmp[i] = lp_build_pack2(builder, src_type, new_type, clamped, - tmp[2*i + 0], tmp[2*i + 1]); - - src_type = new_type; - } - - assert(num_srcs == 1); - - return tmp[0]; -} - - -/** * Generic type conversion. * * TODO: Take a precision argument, or even better, add a new precision member @@ -572,7 +338,7 @@ lp_build_conv(LLVMBuilderRef builder, if(tmp_type.width < dst_type.width) { assert(num_tmps == 1); - lp_build_expand(builder, tmp_type, dst_type, tmp[0], tmp, num_dsts); + lp_build_unpack(builder, tmp_type, dst_type, tmp[0], tmp, num_dsts); tmp_type.width = dst_type.width; tmp_type.length = dst_type.length; num_tmps = num_dsts; @@ -692,7 +458,7 @@ lp_build_conv_mask(LLVMBuilderRef builder, } else if(src_type.width < dst_type.width) { assert(num_srcs == 1); - lp_build_expand(builder, src_type, dst_type, src[0], dst, num_dsts); + lp_build_unpack(builder, src_type, dst_type, src[0], dst, num_dsts); } else { assert(num_srcs == num_dsts); diff --git a/src/gallium/drivers/llvmpipe/lp_bld_pack.c b/src/gallium/drivers/llvmpipe/lp_bld_pack.c new file mode 100644 index 0000000000..fe82fda039 --- /dev/null +++ b/src/gallium/drivers/llvmpipe/lp_bld_pack.c @@ -0,0 +1,419 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +/** + * @file + * Helper functions for packing/unpacking. + * + * Pack/unpacking is necessary for conversion between types of different + * bit width. + * + * They are also commonly used when an computation needs higher + * precision for the intermediate values. For example, if one needs the + * function: + * + * c = compute(a, b); + * + * to use more precision for intermediate results then one should implement it + * as: + * + * LLVMValueRef + * compute(LLVMBuilderRef builder struct lp_type type, LLVMValueRef a, LLVMValueRef b) + * { + * struct lp_type wide_type = lp_wider_type(type); + * LLVMValueRef al, ah, bl, bh, cl, ch, c; + * + * lp_build_unpack2(builder, type, wide_type, a, &al, &ah); + * lp_build_unpack2(builder, type, wide_type, b, &bl, &bh); + * + * cl = compute_half(al, bl); + * ch = compute_half(ah, bh); + * + * c = lp_build_pack2(bld->builder, wide_type, type, cl, ch); + * + * return c; + * } + * + * where compute_half() would do the computation for half the elements with + * twice the precision. + * + * @author Jose Fonseca <jfonseca@vmware.com> + */ + + +#include "util/u_debug.h" +#include "util/u_math.h" +#include "util/u_cpu_detect.h" + +#include "lp_bld_type.h" +#include "lp_bld_const.h" +#include "lp_bld_intr.h" +#include "lp_bld_arit.h" +#include "lp_bld_pack.h" + + +/** + * Build shuffle vectors that match PUNPCKLxx and PUNPCKHxx instructions. + */ +static LLVMValueRef +lp_build_const_unpack_shuffle(unsigned n, unsigned lo_hi) +{ + LLVMValueRef elems[LP_MAX_VECTOR_LENGTH]; + unsigned i, j; + + assert(n <= LP_MAX_VECTOR_LENGTH); + assert(lo_hi < 2); + + /* TODO: cache results in a static table */ + + for(i = 0, j = lo_hi*n/2; i < n; i += 2, ++j) { + elems[i + 0] = LLVMConstInt(LLVMInt32Type(), 0 + j, 0); + elems[i + 1] = LLVMConstInt(LLVMInt32Type(), n + j, 0); + } + + return LLVMConstVector(elems, n); +} + + +/** + * Build shuffle vectors that match PACKxx instructions. + */ +static LLVMValueRef +lp_build_const_pack_shuffle(unsigned n) +{ + LLVMValueRef elems[LP_MAX_VECTOR_LENGTH]; + unsigned i; + + assert(n <= LP_MAX_VECTOR_LENGTH); + + /* TODO: cache results in a static table */ + + for(i = 0; i < n; ++i) + elems[i] = LLVMConstInt(LLVMInt32Type(), 2*i, 0); + + return LLVMConstVector(elems, n); +} + + +/** + * Interleave vector elements. + * + * Matches the PUNPCKLxx and PUNPCKHxx SSE instructions. + */ +LLVMValueRef +lp_build_interleave2(LLVMBuilderRef builder, + struct lp_type type, + LLVMValueRef a, + LLVMValueRef b, + unsigned lo_hi) +{ + LLVMValueRef shuffle; + + shuffle = lp_build_const_unpack_shuffle(type.length, lo_hi); + + return LLVMBuildShuffleVector(builder, a, b, shuffle, ""); +} + + +/** + * Double the bit width. + * + * This will only change the number of bits the values are represented, not the + * values themselves. + */ +void +lp_build_unpack2(LLVMBuilderRef builder, + struct lp_type src_type, + struct lp_type dst_type, + LLVMValueRef src, + LLVMValueRef *dst_lo, + LLVMValueRef *dst_hi) +{ + LLVMValueRef msb; + LLVMTypeRef dst_vec_type; + + assert(!src_type.floating); + assert(!dst_type.floating); + assert(dst_type.sign == src_type.sign); + assert(dst_type.width == src_type.width * 2); + assert(dst_type.length * 2 == src_type.length); + + if(src_type.sign) { + /* Replicate the sign bit in the most significant bits */ + msb = LLVMBuildAShr(builder, src, lp_build_int_const_scalar(src_type, src_type.width - 1), ""); + } + else + /* Most significant bits always zero */ + msb = lp_build_zero(src_type); + + /* Interleave bits */ + if(util_cpu_caps.little_endian) { + *dst_lo = lp_build_interleave2(builder, src_type, src, msb, 0); + *dst_hi = lp_build_interleave2(builder, src_type, src, msb, 1); + } + else { + *dst_lo = lp_build_interleave2(builder, src_type, msb, src, 0); + *dst_hi = lp_build_interleave2(builder, src_type, msb, src, 1); + } + + /* Cast the result into the new type (twice as wide) */ + + dst_vec_type = lp_build_vec_type(dst_type); + + *dst_lo = LLVMBuildBitCast(builder, *dst_lo, dst_vec_type, ""); + *dst_hi = LLVMBuildBitCast(builder, *dst_hi, dst_vec_type, ""); +} + + +/** + * Expand the bit width. + * + * This will only change the number of bits the values are represented, not the + * values themselves. + */ +void +lp_build_unpack(LLVMBuilderRef builder, + struct lp_type src_type, + struct lp_type dst_type, + LLVMValueRef src, + LLVMValueRef *dst, unsigned num_dsts) +{ + unsigned num_tmps; + unsigned i; + + /* Register width must remain constant */ + assert(src_type.width * src_type.length == dst_type.width * dst_type.length); + + /* We must not loose or gain channels. Only precision */ + assert(src_type.length == dst_type.length * num_dsts); + + num_tmps = 1; + dst[0] = src; + + while(src_type.width < dst_type.width) { + struct lp_type tmp_type = src_type; + + tmp_type.width *= 2; + tmp_type.length /= 2; + + for(i = num_tmps; i--; ) { + lp_build_unpack2(builder, src_type, tmp_type, dst[i], &dst[2*i + 0], &dst[2*i + 1]); + } + + src_type = tmp_type; + + num_tmps *= 2; + } + + assert(num_tmps == num_dsts); +} + + +/** + * Non-interleaved pack. + * + * This will move values as + * + * lo = __ l0 __ l1 __ l2 __.. __ ln + * hi = __ h0 __ h1 __ h2 __.. __ hn + * res = l0 l1 l2 .. ln h0 h1 h2 .. hn + * + * This will only change the number of bits the values are represented, not the + * values themselves. + * + * It is assumed the values are already clamped into the destination type range. + * Values outside that range will produce undefined results. Use + * lp_build_packs2 instead. + */ +LLVMValueRef +lp_build_pack2(LLVMBuilderRef builder, + struct lp_type src_type, + struct lp_type dst_type, + LLVMValueRef lo, + LLVMValueRef hi) +{ + LLVMTypeRef src_vec_type = lp_build_vec_type(src_type); + LLVMTypeRef dst_vec_type = lp_build_vec_type(dst_type); + LLVMValueRef shuffle; + LLVMValueRef res; + + dst_vec_type = lp_build_vec_type(dst_type); + + assert(!src_type.floating); + assert(!dst_type.floating); + assert(src_type.width == dst_type.width * 2); + assert(src_type.length * 2 == dst_type.length); + + if(util_cpu_caps.has_sse2 && src_type.width * src_type.length == 128) { + switch(src_type.width) { + case 32: + if(dst_type.sign) { + res = lp_build_intrinsic_binary(builder, "llvm.x86.sse2.packssdw.128", src_vec_type, lo, hi); + } + else { + if (util_cpu_caps.has_sse4_1) { + /* PACKUSDW is the only instrinsic with a consistent signature */ + return lp_build_intrinsic_binary(builder, "llvm.x86.sse41.packusdw", dst_vec_type, lo, hi); + } + else { + assert(0); + return LLVMGetUndef(dst_vec_type); + } + } + break; + + case 16: + if(dst_type.sign) + res = lp_build_intrinsic_binary(builder, "llvm.x86.sse2.packsswb.128", src_vec_type, lo, hi); + else + res = lp_build_intrinsic_binary(builder, "llvm.x86.sse2.packuswb.128", src_vec_type, lo, hi); + break; + + default: + assert(0); + return LLVMGetUndef(dst_vec_type); + break; + } + + res = LLVMBuildBitCast(builder, res, dst_vec_type, ""); + return res; + } + + lo = LLVMBuildBitCast(builder, lo, dst_vec_type, ""); + hi = LLVMBuildBitCast(builder, hi, dst_vec_type, ""); + + shuffle = lp_build_const_pack_shuffle(dst_type.length); + + res = LLVMBuildShuffleVector(builder, lo, hi, shuffle, ""); + + return res; +} + + + +/** + * Non-interleaved pack and saturate. + * + * Same as lp_build_pack2 but will saturate values so that they fit into the + * destination type. + */ +LLVMValueRef +lp_build_packs2(LLVMBuilderRef builder, + struct lp_type src_type, + struct lp_type dst_type, + LLVMValueRef lo, + LLVMValueRef hi) +{ + boolean clamp; + + assert(!src_type.floating); + assert(!dst_type.floating); + assert(src_type.sign == dst_type.sign); + assert(src_type.width == dst_type.width * 2); + assert(src_type.length * 2 == dst_type.length); + + clamp = TRUE; + + /* All X86 SSE non-interleaved pack instructions take signed inputs and + * saturate them, so no need to clamp for those cases. */ + if(util_cpu_caps.has_sse2 && + src_type.width * src_type.length == 128 && + src_type.sign) + clamp = FALSE; + + if(clamp) { + struct lp_build_context bld; + unsigned dst_bits = dst_type.sign ? dst_type.width - 1 : dst_type.width; + LLVMValueRef dst_max = lp_build_int_const_scalar(src_type, ((unsigned long long)1 << dst_bits) - 1); + lp_build_context_init(&bld, builder, src_type); + lo = lp_build_min(&bld, lo, dst_max); + hi = lp_build_min(&bld, hi, dst_max); + /* FIXME: What about lower bound? */ + } + + return lp_build_pack2(builder, src_type, dst_type, lo, hi); +} + + +/** + * Truncate the bit width. + * + * TODO: Handle saturation consistently. + */ +LLVMValueRef +lp_build_pack(LLVMBuilderRef builder, + struct lp_type src_type, + struct lp_type dst_type, + boolean clamped, + const LLVMValueRef *src, unsigned num_srcs) +{ + LLVMValueRef (*pack2)(LLVMBuilderRef builder, + struct lp_type src_type, + struct lp_type dst_type, + LLVMValueRef lo, + LLVMValueRef hi); + LLVMValueRef tmp[LP_MAX_VECTOR_LENGTH]; + unsigned i; + + + /* Register width must remain constant */ + assert(src_type.width * src_type.length == dst_type.width * dst_type.length); + + /* We must not loose or gain channels. Only precision */ + assert(src_type.length * num_srcs == dst_type.length); + + if(clamped) + pack2 = &lp_build_pack2; + else + pack2 = &lp_build_packs2; + + for(i = 0; i < num_srcs; ++i) + tmp[i] = src[i]; + + while(src_type.width > dst_type.width) { + struct lp_type tmp_type = src_type; + + tmp_type.width /= 2; + tmp_type.length *= 2; + + /* Take in consideration the sign changes only in the last step */ + if(tmp_type.width == dst_type.width) + tmp_type.sign = dst_type.sign; + + num_srcs /= 2; + + for(i = 0; i < num_srcs; ++i) + tmp[i] = pack2(builder, src_type, tmp_type, tmp[2*i + 0], tmp[2*i + 1]); + + src_type = tmp_type; + } + + assert(num_srcs == 1); + + return tmp[0]; +} diff --git a/src/gallium/drivers/llvmpipe/lp_bld_pack.h b/src/gallium/drivers/llvmpipe/lp_bld_pack.h new file mode 100644 index 0000000000..fb2a34984a --- /dev/null +++ b/src/gallium/drivers/llvmpipe/lp_bld_pack.h @@ -0,0 +1,95 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * @file + * Helper functions for packing/unpacking conversions. + * + * @author Jose Fonseca <jfonseca@vmware.com> + */ + + +#ifndef LP_BLD_PACK_H +#define LP_BLD_PACK_H + + +#include <llvm-c/Core.h> + + +struct lp_type; + + +LLVMValueRef +lp_build_interleave2(LLVMBuilderRef builder, + struct lp_type type, + LLVMValueRef a, + LLVMValueRef b, + unsigned lo_hi); + + +void +lp_build_unpack2(LLVMBuilderRef builder, + struct lp_type src_type, + struct lp_type dst_type, + LLVMValueRef src, + LLVMValueRef *dst_lo, + LLVMValueRef *dst_hi); + + +void +lp_build_unpack(LLVMBuilderRef builder, + struct lp_type src_type, + struct lp_type dst_type, + LLVMValueRef src, + LLVMValueRef *dst, unsigned num_dsts); + + +LLVMValueRef +lp_build_packs2(LLVMBuilderRef builder, + struct lp_type src_type, + struct lp_type dst_type, + LLVMValueRef lo, + LLVMValueRef hi); + + +LLVMValueRef +lp_build_pack2(LLVMBuilderRef builder, + struct lp_type src_type, + struct lp_type dst_type, + LLVMValueRef lo, + LLVMValueRef hi); + + +LLVMValueRef +lp_build_pack(LLVMBuilderRef builder, + struct lp_type src_type, + struct lp_type dst_type, + boolean clamped, + const LLVMValueRef *src, unsigned num_srcs); + + +#endif /* !LP_BLD_PACK_H */ |