diff options
author | José Fonseca <jfonseca@vmware.com> | 2009-08-23 14:25:31 +0100 |
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committer | José Fonseca <jfonseca@vmware.com> | 2009-08-29 09:21:42 +0100 |
commit | f311bacebd167651e5be3bb3cef14fdfb6e1d925 (patch) | |
tree | 5d3f39c5071f3c7d21bfe3b98be67472be8e56eb /src/gallium/drivers/llvmpipe/lp_bld_unpack.c | |
parent | f85c5f8621382ba1c8baa1582d87b46b388258d2 (diff) |
llvmpipe: Merge all pixel format related files.
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_bld_unpack.c')
-rw-r--r-- | src/gallium/drivers/llvmpipe/lp_bld_unpack.c | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_unpack.c b/src/gallium/drivers/llvmpipe/lp_bld_unpack.c deleted file mode 100644 index d70faac1ba..0000000000 --- a/src/gallium/drivers/llvmpipe/lp_bld_unpack.c +++ /dev/null @@ -1,152 +0,0 @@ -/************************************************************************** - * - * 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. - * - **************************************************************************/ - - -#include "util/u_format.h" - -#include "lp_bld_format.h" - - -LLVMValueRef -lp_build_unpack_rgba(LLVMBuilderRef builder, - enum pipe_format format, - LLVMValueRef packed) -{ - const struct util_format_description *desc; - LLVMTypeRef type; - LLVMValueRef shifted, casted, scaled, masked; - LLVMValueRef shifts[4]; - LLVMValueRef masks[4]; - LLVMValueRef scales[4]; - LLVMValueRef swizzles[4]; - LLVMValueRef aux[4]; - bool normalized; - int empty_channel; - unsigned shift; - unsigned i; - - desc = util_format_description(format); - - /* FIXME: Support more formats */ - assert(desc->layout == UTIL_FORMAT_LAYOUT_ARITH); - assert(desc->block.width == 1); - assert(desc->block.height == 1); - assert(desc->block.bits <= 32); - - type = LLVMIntType(desc->block.bits); - - /* Do the intermediate integer computations with 32bit integers since it - * matches floating point size */ - if (desc->block.bits < 32) - packed = LLVMBuildZExt(builder, packed, LLVMInt32Type(), ""); - - /* Broadcast the packed value to all four channels */ - packed = LLVMBuildInsertElement(builder, - LLVMGetUndef(LLVMVectorType(LLVMInt32Type(), 4)), - packed, - LLVMConstNull(LLVMInt32Type()), - ""); - packed = LLVMBuildShuffleVector(builder, - packed, - LLVMGetUndef(LLVMVectorType(LLVMInt32Type(), 4)), - LLVMConstNull(LLVMVectorType(LLVMInt32Type(), 4)), - ""); - - /* Initialize vector constants */ - normalized = FALSE; - empty_channel = -1; - shift = 0; - for (i = 0; i < 4; ++i) { - unsigned bits = desc->channel[i].size; - - if (desc->channel[i].type == UTIL_FORMAT_TYPE_VOID) { - shifts[i] = LLVMGetUndef(LLVMInt32Type()); - masks[i] = LLVMConstNull(LLVMInt32Type()); - scales[i] = LLVMConstNull(LLVMFloatType()); - empty_channel = i; - } - else { - unsigned mask = (1 << bits) - 1; - - assert(desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED); - assert(bits < 32); - - shifts[i] = LLVMConstInt(LLVMInt32Type(), shift, 0); - masks[i] = LLVMConstInt(LLVMInt32Type(), mask, 0); - - if (desc->channel[i].normalized) { - scales[i] = LLVMConstReal(LLVMFloatType(), 1.0/mask); - normalized = TRUE; - } - else - scales[i] = LLVMConstReal(LLVMFloatType(), 1.0); - } - - shift += bits; - } - - shifted = LLVMBuildLShr(builder, packed, LLVMConstVector(shifts, 4), ""); - masked = LLVMBuildAnd(builder, shifted, LLVMConstVector(masks, 4), ""); - // UIToFP can't be expressed in SSE2 - casted = LLVMBuildSIToFP(builder, masked, LLVMVectorType(LLVMFloatType(), 4), ""); - - if (normalized) - scaled = LLVMBuildMul(builder, casted, LLVMConstVector(scales, 4), ""); - else - scaled = casted; - - for (i = 0; i < 4; ++i) - aux[i] = LLVMGetUndef(LLVMFloatType()); - - for (i = 0; i < 4; ++i) { - enum util_format_swizzle swizzle = desc->swizzle[i]; - - switch (swizzle) { - case UTIL_FORMAT_SWIZZLE_X: - case UTIL_FORMAT_SWIZZLE_Y: - case UTIL_FORMAT_SWIZZLE_Z: - case UTIL_FORMAT_SWIZZLE_W: - swizzles[i] = LLVMConstInt(LLVMInt32Type(), swizzle, 0); - break; - case UTIL_FORMAT_SWIZZLE_0: - assert(empty_channel >= 0); - swizzles[i] = LLVMConstInt(LLVMInt32Type(), empty_channel, 0); - break; - case UTIL_FORMAT_SWIZZLE_1: - swizzles[i] = LLVMConstInt(LLVMInt32Type(), 4, 0); - aux[0] = LLVMConstReal(LLVMFloatType(), 1.0); - break; - case UTIL_FORMAT_SWIZZLE_NONE: - swizzles[i] = LLVMGetUndef(LLVMFloatType()); - assert(0); - break; - } - } - - return LLVMBuildShuffleVector(builder, scaled, LLVMConstVector(aux, 4), LLVMConstVector(swizzles, 4), ""); -} - |