diff options
Diffstat (limited to 'src/3rdparty/angle/src/compiler/translator/timing/RestrictFragmentShaderTiming.cpp')
-rw-r--r-- | src/3rdparty/angle/src/compiler/translator/timing/RestrictFragmentShaderTiming.cpp | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/src/3rdparty/angle/src/compiler/translator/timing/RestrictFragmentShaderTiming.cpp b/src/3rdparty/angle/src/compiler/translator/timing/RestrictFragmentShaderTiming.cpp deleted file mode 100644 index 790974a2bf..0000000000 --- a/src/3rdparty/angle/src/compiler/translator/timing/RestrictFragmentShaderTiming.cpp +++ /dev/null @@ -1,130 +0,0 @@ -// -// Copyright (c) 2012 The ANGLE Project Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. -// - -#include "compiler/translator/InfoSink.h" -#include "compiler/translator/ParseContext.h" -#include "compiler/translator/depgraph/DependencyGraphOutput.h" -#include "compiler/translator/timing/RestrictFragmentShaderTiming.h" - -RestrictFragmentShaderTiming::RestrictFragmentShaderTiming(TInfoSinkBase& sink) - : mSink(sink) - , mNumErrors(0) -{ - // Sampling ops found only in fragment shaders. - mSamplingOps.insert("texture2D(s21;vf2;f1;"); - mSamplingOps.insert("texture2DProj(s21;vf3;f1;"); - mSamplingOps.insert("texture2DProj(s21;vf4;f1;"); - mSamplingOps.insert("textureCube(sC1;vf3;f1;"); - // Sampling ops found in both vertex and fragment shaders. - mSamplingOps.insert("texture2D(s21;vf2;"); - mSamplingOps.insert("texture2DProj(s21;vf3;"); - mSamplingOps.insert("texture2DProj(s21;vf4;"); - mSamplingOps.insert("textureCube(sC1;vf3;"); - // Sampling ops provided by OES_EGL_image_external. - mSamplingOps.insert("texture2D(1;vf2;"); - mSamplingOps.insert("texture2DProj(1;vf3;"); - mSamplingOps.insert("texture2DProj(1;vf4;"); - // Sampling ops provided by ARB_texture_rectangle. - mSamplingOps.insert("texture2DRect(1;vf2;"); - mSamplingOps.insert("texture2DRectProj(1;vf3;"); - mSamplingOps.insert("texture2DRectProj(1;vf4;"); - // Sampling ops provided by EXT_shader_texture_lod. - mSamplingOps.insert("texture2DLodEXT(1;vf2;f1;"); - mSamplingOps.insert("texture2DProjLodEXT(1;vf3;f1;"); - mSamplingOps.insert("texture2DProjLodEXT(1;vf4;f1;"); - mSamplingOps.insert("textureCubeLodEXT(1;vf4;f1;"); - mSamplingOps.insert("texture2DGradEXT(1;vf2;vf2;vf2;"); - mSamplingOps.insert("texture2DProjGradEXT(1;vf3;vf2;vf2;"); - mSamplingOps.insert("texture2DProjGradEXT(1;vf4;vf2;vf2;"); - mSamplingOps.insert("textureCubeGradEXT(1;vf3;vf3;vf3;"); -} - -// FIXME(mvujovic): We do not know if the execution time of built-in operations like sin, pow, etc. -// can vary based on the value of the input arguments. If so, we should restrict those as well. -void RestrictFragmentShaderTiming::enforceRestrictions(const TDependencyGraph& graph) -{ - mNumErrors = 0; - - // FIXME(mvujovic): The dependency graph does not support user defined function calls right now, - // so we generate errors for them. - validateUserDefinedFunctionCallUsage(graph); - - // Starting from each sampler, traverse the dependency graph and generate an error each time we - // hit a node where sampler dependent values are not allowed. - for (auto samplerSymbol : graph.samplerSymbols()) - { - clearVisited(); - samplerSymbol->traverse(this); - } -} - -void RestrictFragmentShaderTiming::validateUserDefinedFunctionCallUsage(const TDependencyGraph& graph) -{ - for (const auto* functionCall : graph.userDefinedFunctionCalls()) - { - beginError(functionCall->getIntermFunctionCall()); - mSink << "A call to a user defined function is not permitted.\n"; - } -} - -void RestrictFragmentShaderTiming::beginError(const TIntermNode* node) -{ - ++mNumErrors; - mSink.prefix(EPrefixError); - mSink.location(node->getLine()); -} - -bool RestrictFragmentShaderTiming::isSamplingOp(const TIntermAggregate* intermFunctionCall) const -{ - return !intermFunctionCall->isUserDefined() && - mSamplingOps.find(intermFunctionCall->getName()) != mSamplingOps.end(); -} - -void RestrictFragmentShaderTiming::visitArgument(TGraphArgument* parameter) -{ - // Texture cache access time might leak sensitive information. - // Thus, we restrict sampler dependent values from affecting the coordinate or LOD bias of a - // sampling operation. - if (isSamplingOp(parameter->getIntermFunctionCall())) { - switch (parameter->getArgumentNumber()) { - case 1: - // Second argument (coord) - beginError(parameter->getIntermFunctionCall()); - mSink << "An expression dependent on a sampler is not permitted to be the" - << " coordinate argument of a sampling operation.\n"; - break; - case 2: - // Third argument (bias) - beginError(parameter->getIntermFunctionCall()); - mSink << "An expression dependent on a sampler is not permitted to be the" - << " bias argument of a sampling operation.\n"; - break; - default: - // First argument (sampler) - break; - } - } -} - -void RestrictFragmentShaderTiming::visitSelection(TGraphSelection* selection) -{ - beginError(selection->getIntermSelection()); - mSink << "An expression dependent on a sampler is not permitted in a conditional statement.\n"; -} - -void RestrictFragmentShaderTiming::visitLoop(TGraphLoop* loop) -{ - beginError(loop->getIntermLoop()); - mSink << "An expression dependent on a sampler is not permitted in a loop condition.\n"; -} - -void RestrictFragmentShaderTiming::visitLogicalOp(TGraphLogicalOp* logicalOp) -{ - beginError(logicalOp->getIntermLogicalOp()); - mSink << "An expression dependent on a sampler is not permitted on the left hand side of a logical " - << logicalOp->getOpString() - << " operator.\n"; -} |