diff options
Diffstat (limited to 'src/3rdparty/angle/src/compiler/translator/TranslatorESSL.cpp')
| -rw-r--r-- | src/3rdparty/angle/src/compiler/translator/TranslatorESSL.cpp | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/src/3rdparty/angle/src/compiler/translator/TranslatorESSL.cpp b/src/3rdparty/angle/src/compiler/translator/TranslatorESSL.cpp deleted file mode 100644 index 23c967f944..0000000000 --- a/src/3rdparty/angle/src/compiler/translator/TranslatorESSL.cpp +++ /dev/null @@ -1,184 +0,0 @@ -// -// Copyright (c) 2002-2013 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/TranslatorESSL.h" - -#include "compiler/translator/BuiltInFunctionEmulatorGLSL.h" -#include "compiler/translator/EmulatePrecision.h" -#include "compiler/translator/RecordConstantPrecision.h" -#include "compiler/translator/OutputESSL.h" -#include "angle_gl.h" - -namespace sh -{ - -TranslatorESSL::TranslatorESSL(sh::GLenum type, ShShaderSpec spec) - : TCompiler(type, spec, SH_ESSL_OUTPUT) -{ -} - -void TranslatorESSL::initBuiltInFunctionEmulator(BuiltInFunctionEmulator *emu, - ShCompileOptions compileOptions) -{ - if (compileOptions & SH_EMULATE_ATAN2_FLOAT_FUNCTION) - { - InitBuiltInAtanFunctionEmulatorForGLSLWorkarounds(emu); - } -} - -void TranslatorESSL::translate(TIntermBlock *root, - ShCompileOptions compileOptions, - PerformanceDiagnostics * /*perfDiagnostics*/) -{ - TInfoSinkBase &sink = getInfoSink().obj; - - int shaderVer = getShaderVersion(); - if (shaderVer > 100) - { - sink << "#version " << shaderVer << " es\n"; - } - - // Write built-in extension behaviors. - writeExtensionBehavior(compileOptions); - - // Write pragmas after extensions because some drivers consider pragmas - // like non-preprocessor tokens. - writePragma(compileOptions); - - bool precisionEmulation = - getResources().WEBGL_debug_shader_precision && getPragma().debugShaderPrecision; - - if (precisionEmulation) - { - EmulatePrecision emulatePrecision(&getSymbolTable(), shaderVer); - root->traverse(&emulatePrecision); - emulatePrecision.updateTree(); - emulatePrecision.writeEmulationHelpers(sink, shaderVer, SH_ESSL_OUTPUT); - } - - RecordConstantPrecision(root, &getSymbolTable()); - - // Write emulated built-in functions if needed. - if (!getBuiltInFunctionEmulator().isOutputEmpty()) - { - sink << "// BEGIN: Generated code for built-in function emulation\n\n"; - if (getShaderType() == GL_FRAGMENT_SHADER) - { - sink << "#if defined(GL_FRAGMENT_PRECISION_HIGH)\n" - << "#define emu_precision highp\n" - << "#else\n" - << "#define emu_precision mediump\n" - << "#endif\n\n"; - } - else - { - sink << "#define emu_precision highp\n"; - } - - getBuiltInFunctionEmulator().outputEmulatedFunctions(sink); - sink << "// END: Generated code for built-in function emulation\n\n"; - } - - // Write array bounds clamping emulation if needed. - getArrayBoundsClamper().OutputClampingFunctionDefinition(sink); - - if (getShaderType() == GL_COMPUTE_SHADER && isComputeShaderLocalSizeDeclared()) - { - const sh::WorkGroupSize &localSize = getComputeShaderLocalSize(); - sink << "layout (local_size_x=" << localSize[0] << ", local_size_y=" << localSize[1] - << ", local_size_z=" << localSize[2] << ") in;\n"; - } - - if (getShaderType() == GL_GEOMETRY_SHADER_OES) - { - WriteGeometryShaderLayoutQualifiers( - sink, getGeometryShaderInputPrimitiveType(), getGeometryShaderInvocations(), - getGeometryShaderOutputPrimitiveType(), getGeometryShaderMaxVertices()); - } - - // Write translated shader. - TOutputESSL outputESSL(sink, getArrayIndexClampingStrategy(), getHashFunction(), getNameMap(), - &getSymbolTable(), getShaderType(), shaderVer, precisionEmulation, - compileOptions); - - if (compileOptions & SH_TRANSLATE_VIEWID_OVR_TO_UNIFORM) - { - TName uniformName(TString("ViewID_OVR")); - uniformName.setInternal(true); - sink << "highp uniform int " << outputESSL.hashName(uniformName) << ";\n"; - } - - root->traverse(&outputESSL); -} - -bool TranslatorESSL::shouldFlattenPragmaStdglInvariantAll() -{ - // Not necessary when translating to ESSL. - return false; -} - -void TranslatorESSL::writeExtensionBehavior(ShCompileOptions compileOptions) -{ - TInfoSinkBase &sink = getInfoSink().obj; - const TExtensionBehavior &extBehavior = getExtensionBehavior(); - const bool isMultiviewExtEmulated = - (compileOptions & - (SH_TRANSLATE_VIEWID_OVR_TO_UNIFORM | SH_INITIALIZE_BUILTINS_FOR_INSTANCED_MULTIVIEW | - SH_SELECT_VIEW_IN_NV_GLSL_VERTEX_SHADER)) != 0u; - for (TExtensionBehavior::const_iterator iter = extBehavior.begin(); iter != extBehavior.end(); - ++iter) - { - if (iter->second != EBhUndefined) - { - const bool isMultiview = (iter->first == TExtension::OVR_multiview); - if (getResources().NV_shader_framebuffer_fetch && - iter->first == TExtension::EXT_shader_framebuffer_fetch) - { - sink << "#extension GL_NV_shader_framebuffer_fetch : " - << GetBehaviorString(iter->second) << "\n"; - } - else if (getResources().NV_draw_buffers && iter->first == TExtension::EXT_draw_buffers) - { - sink << "#extension GL_NV_draw_buffers : " << GetBehaviorString(iter->second) - << "\n"; - } - else if (isMultiview && isMultiviewExtEmulated) - { - if (getShaderType() == GL_VERTEX_SHADER && - (compileOptions & SH_SELECT_VIEW_IN_NV_GLSL_VERTEX_SHADER) != 0u) - { - // Emit the NV_viewport_array2 extension in a vertex shader if the - // SH_SELECT_VIEW_IN_NV_GLSL_VERTEX_SHADER option is set and the - // OVR_multiview(2) extension is requested. - sink << "#extension GL_NV_viewport_array2 : require\n"; - } - } - else if (iter->first == TExtension::OES_geometry_shader) - { - sink << "#ifdef GL_OES_geometry_shader\n" - << "#extension GL_OES_geometry_shader : " << GetBehaviorString(iter->second) - << "\n" - << "#elif defined GL_EXT_geometry_shader\n" - << "#extension GL_EXT_geometry_shader : " << GetBehaviorString(iter->second) - << "\n"; - if (iter->second == EBhRequire) - { - sink << "#else\n" - << "#error \"No geometry shader extensions available.\" // Only generate " - "this if the extension is \"required\"\n"; - } - sink << "#endif\n"; - } - else - { - sink << "#extension " << GetExtensionNameString(iter->first) << " : " - << GetBehaviorString(iter->second) << "\n"; - } - } - } -} - -} // namespace sh |