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author | marha <marha@users.sourceforge.net> | 2010-12-28 16:10:20 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2010-12-28 16:10:20 +0000 |
commit | 807c6931fe683fd844ceec1b023232181e6aae03 (patch) | |
tree | 1a131ed95fe2200d0ad33da8f7755a7ed2364adc /mesalib/src/glsl/ir_swizzle_swizzle.cpp | |
parent | 973099dda7e49e5abe29819a7124b3b1e7bd8b92 (diff) | |
download | vcxsrv-807c6931fe683fd844ceec1b023232181e6aae03.tar.gz vcxsrv-807c6931fe683fd844ceec1b023232181e6aae03.tar.bz2 vcxsrv-807c6931fe683fd844ceec1b023232181e6aae03.zip |
xserver and mesa git update 28-12-2010
Diffstat (limited to 'mesalib/src/glsl/ir_swizzle_swizzle.cpp')
-rw-r--r-- | mesalib/src/glsl/ir_swizzle_swizzle.cpp | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/mesalib/src/glsl/ir_swizzle_swizzle.cpp b/mesalib/src/glsl/ir_swizzle_swizzle.cpp deleted file mode 100644 index 0ffb4fa31..000000000 --- a/mesalib/src/glsl/ir_swizzle_swizzle.cpp +++ /dev/null @@ -1,93 +0,0 @@ -/* - * Copyright © 2010 Intel Corporation - * - * 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, sublicense, - * 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 NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS 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 ir_swizzle_swizzle.cpp - * - * Eliminates the second swizzle in a swizzle chain. - */ - -#include "ir.h" -#include "ir_visitor.h" -#include "ir_optimization.h" -#include "glsl_types.h" - -class ir_swizzle_swizzle_visitor : public ir_hierarchical_visitor { -public: - ir_swizzle_swizzle_visitor() - { - progress = false; - } - - virtual ir_visitor_status visit_enter(ir_swizzle *); - - bool progress; -}; - -ir_visitor_status -ir_swizzle_swizzle_visitor::visit_enter(ir_swizzle *ir) -{ - int mask2[4]; - - ir_swizzle *swiz2 = ir->val->as_swizzle(); - if (!swiz2) - return visit_continue; - - memset(&mask2, 0, sizeof(mask2)); - if (swiz2->mask.num_components >= 1) - mask2[0] = swiz2->mask.x; - if (swiz2->mask.num_components >= 2) - mask2[1] = swiz2->mask.y; - if (swiz2->mask.num_components >= 3) - mask2[2] = swiz2->mask.z; - if (swiz2->mask.num_components >= 4) - mask2[3] = swiz2->mask.w; - - if (ir->mask.num_components >= 1) - ir->mask.x = mask2[ir->mask.x]; - if (ir->mask.num_components >= 2) - ir->mask.y = mask2[ir->mask.y]; - if (ir->mask.num_components >= 3) - ir->mask.z = mask2[ir->mask.z]; - if (ir->mask.num_components >= 4) - ir->mask.w = mask2[ir->mask.w]; - - ir->val = swiz2->val; - - this->progress = true; - - return visit_continue; -} - -/** - * Does a copy propagation pass on the code present in the instruction stream. - */ -bool -do_swizzle_swizzle(exec_list *instructions) -{ - ir_swizzle_swizzle_visitor v; - - v.run(instructions); - - return v.progress; -} |