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authorJosé Fonseca <jfonseca@vmware.com>2009-08-23 14:25:31 +0100
committerJosé Fonseca <jfonseca@vmware.com>2009-08-29 09:21:42 +0100
commitf311bacebd167651e5be3bb3cef14fdfb6e1d925 (patch)
tree5d3f39c5071f3c7d21bfe3b98be67472be8e56eb /src/gallium/drivers/llvmpipe/lp_bld_unpack.c
parentf85c5f8621382ba1c8baa1582d87b46b388258d2 (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.c152
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), "");
-}
-