diff options
Diffstat (limited to 'src/3rdparty/angle/src/compiler/translator/TranslatorESSL.cpp')
-rw-r--r-- | src/3rdparty/angle/src/compiler/translator/TranslatorESSL.cpp | 69 |
1 files changed, 60 insertions, 9 deletions
diff --git a/src/3rdparty/angle/src/compiler/translator/TranslatorESSL.cpp b/src/3rdparty/angle/src/compiler/translator/TranslatorESSL.cpp index dcbf3cea1d..238bc97576 100644 --- a/src/3rdparty/angle/src/compiler/translator/TranslatorESSL.cpp +++ b/src/3rdparty/angle/src/compiler/translator/TranslatorESSL.cpp @@ -6,40 +6,91 @@ #include "compiler/translator/TranslatorESSL.h" +#include "compiler/translator/BuiltInFunctionEmulatorGLSL.h" +#include "compiler/translator/EmulatePrecision.h" #include "compiler/translator/OutputESSL.h" #include "angle_gl.h" TranslatorESSL::TranslatorESSL(sh::GLenum type, ShShaderSpec spec) - : TCompiler(type, spec, SH_ESSL_OUTPUT) { + : TCompiler(type, spec, SH_ESSL_OUTPUT) +{ } -void TranslatorESSL::translate(TIntermNode* root) { +void TranslatorESSL::initBuiltInFunctionEmulator(BuiltInFunctionEmulator *emu, int compileOptions) +{ + if (compileOptions & SH_EMULATE_BUILT_IN_FUNCTIONS) + InitBuiltInFunctionEmulatorForGLSL(emu, getShaderType()); +} + +void TranslatorESSL::translate(TIntermNode *root, int) { TInfoSinkBase& sink = getInfoSink().obj; + int shaderVersion = getShaderVersion(); + if (shaderVersion > 100) + { + sink << "#version " << shaderVersion << " es\n"; + } + writePragma(); // Write built-in extension behaviors. writeExtensionBehavior(); + bool precisionEmulation = getResources().WEBGL_debug_shader_precision && getPragma().debugShaderPrecision; + + if (precisionEmulation) + { + EmulatePrecision emulatePrecision; + root->traverse(&emulatePrecision); + emulatePrecision.updateTree(); + emulatePrecision.writeEmulationHelpers(sink, SH_ESSL_OUTPUT); + } + // Write emulated built-in functions if needed. - getBuiltInFunctionEmulator().OutputEmulatedFunctionDefinition( - sink, getShaderType() == GL_FRAGMENT_SHADER); + 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 webgl_emu_precision highp\n" + << "#else\n" + << "#define webgl_emu_precision mediump\n" + << "#endif\n\n"; + } + else + { + sink << "#define webgl_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); // Write translated shader. - TOutputESSL outputESSL(sink, getArrayIndexClampingStrategy(), getHashFunction(), getNameMap(), getSymbolTable(), getShaderVersion()); + TOutputESSL outputESSL(sink, + getArrayIndexClampingStrategy(), + getHashFunction(), + getNameMap(), + getSymbolTable(), + shaderVersion, + precisionEmulation); root->traverse(&outputESSL); } void TranslatorESSL::writeExtensionBehavior() { TInfoSinkBase& sink = getInfoSink().obj; - const TExtensionBehavior& extensionBehavior = getExtensionBehavior(); - for (TExtensionBehavior::const_iterator iter = extensionBehavior.begin(); - iter != extensionBehavior.end(); ++iter) { + const TExtensionBehavior& extBehavior = getExtensionBehavior(); + for (TExtensionBehavior::const_iterator iter = extBehavior.begin(); + iter != extBehavior.end(); ++iter) { if (iter->second != EBhUndefined) { - if (getResources().NV_draw_buffers && iter->first == "GL_EXT_draw_buffers") { + if (getResources().NV_shader_framebuffer_fetch && iter->first == "GL_EXT_shader_framebuffer_fetch") { + sink << "#extension GL_NV_shader_framebuffer_fetch : " + << getBehaviorString(iter->second) << "\n"; + } else if (getResources().NV_draw_buffers && iter->first == "GL_EXT_draw_buffers") { sink << "#extension GL_NV_draw_buffers : " << getBehaviorString(iter->second) << "\n"; } else { |