Turned on SkSL->GLSL compiler

src/sksl/SkSLCompiler.cpp

Index: src/sksl/SkSLCompiler.cpp
diff --git a/src/sksl/SkSLCompiler.cpp b/src/sksl/SkSLCompiler.cpp
index d2ad81223e8c495e73546e4375b09f84db1b1eef..9eeacd082de1870f76135a21b9d88d91c0f25a0b 100644
--- a/src/sksl/SkSLCompiler.cpp
+++ b/src/sksl/SkSLCompiler.cpp
@@ -10,11 +10,13 @@
 #include <fstream>
 #include <streambuf>
 
+#include "ast/SkSLASTPrecision.h"
 #include "SkSLIRGenerator.h"
 #include "SkSLParser.h"
 #include "SkSLSPIRVCodeGenerator.h"
 #include "ir/SkSLExpression.h"
 #include "ir/SkSLIntLiteral.h"
+#include "ir/SkSLModifiersDeclaration.h"
 #include "ir/SkSLSymbolTable.h"
 #include "ir/SkSLVarDeclaration.h"
 #include "SkMutex.h"
@@ -23,15 +25,15 @@
 
 // include the built-in shader symbols as static strings
 
-static std::string SKSL_INCLUDE = 
+static const char* SKSL_INCLUDE =
 #include "sksl.include"
 ;
 
-static std::string SKSL_VERT_INCLUDE = 
+static const char* SKSL_VERT_INCLUDE =
 #include "sksl_vert.include"
 ;
 
-static std::string SKSL_FRAG_INCLUDE = 
+static const char* SKSL_FRAG_INCLUDE =
 #include "sksl_frag.include"
 ;
 
@@ -97,6 +99,7 @@ Compiler::Compiler()
     ADD_TYPE(Sampler1D);
     ADD_TYPE(Sampler2D);
     ADD_TYPE(Sampler3D);
+    ADD_TYPE(SamplerExternalOES);
     ADD_TYPE(SamplerCube);
     ADD_TYPE(Sampler2DRect);
     ADD_TYPE(Sampler1DArray);
@@ -128,8 +131,9 @@ Compiler::Compiler()
     ADD_TYPE(GSampler2DArrayShadow);
     ADD_TYPE(GSamplerCubeArrayShadow);
 
-    std::vector<std::unique_ptr<ProgramElement>> ignored;
-    this->internalConvertProgram(SKSL_INCLUDE, &ignored);
+    Modifiers::Flag ignored1;
+    std::vector<std::unique_ptr<ProgramElement>> ignored2;
+    this->internalConvertProgram(SKSL_INCLUDE, &ignored1, &ignored2);
     ASSERT(!fErrorCount);
 }
 
@@ -138,12 +142,14 @@ Compiler::~Compiler() {
 }
 
 void Compiler::internalConvertProgram(std::string text,
+                                      Modifiers::Flag* defaultPrecision,
                                       std::vector<std::unique_ptr<ProgramElement>>* result) {
     Parser parser(text, *fTypes, *this);
     std::vector<std::unique_ptr<ASTDeclaration>> parsed = parser.file();
     if (fErrorCount) {
         return;
     }
+    *defaultPrecision = Modifiers::kHighp_Flag;
     for (size_t i = 0; i < parsed.size(); i++) {
         ASTDeclaration& decl = *parsed[i];
         switch (decl.fKind) {
@@ -164,6 +170,14 @@ void Compiler::internalConvertProgram(std::string text,
                 }
                 break;
             }
+            case ASTDeclaration::kModifiers_Kind: {
+                std::unique_ptr<ModifiersDeclaration> f = fIRGenerator->convertModifiersDeclaration(
+                                                                   (ASTModifiersDeclaration&) decl);
+                if (f) {
+                    result->push_back(std::move(f));
+                }
+                break;
+            }
             case ASTDeclaration::kInterfaceBlock_Kind: {
                 std::unique_ptr<InterfaceBlock> i = fIRGenerator->convertInterfaceBlock(
                                                                          (ASTInterfaceBlock&) decl);
@@ -179,6 +193,10 @@ void Compiler::internalConvertProgram(std::string text,
                 }
                 break;
             }
+            case ASTDeclaration::kPrecision_Kind: {
+                *defaultPrecision = ((ASTPrecision&) decl).fPrecision;
+                break;
+            }
             default:
                 ABORT("unsupported declaration: %s\n", decl.description().c_str());
         }
@@ -190,16 +208,18 @@ std::unique_ptr<Program> Compiler::convertProgram(Program::Kind kind, std::strin
     fErrorCount = 0;
     fIRGenerator->pushSymbolTable();
     std::vector<std::unique_ptr<ProgramElement>> elements;
+    Modifiers::Flag ignored;
     switch (kind) {
         case Program::kVertex_Kind:
-            this->internalConvertProgram(SKSL_VERT_INCLUDE, &elements);
+            this->internalConvertProgram(SKSL_VERT_INCLUDE, &ignored, &elements);
             break;
         case Program::kFragment_Kind:
-            this->internalConvertProgram(SKSL_FRAG_INCLUDE, &elements);
+            this->internalConvertProgram(SKSL_FRAG_INCLUDE, &ignored, &elements);
             break;
     }
-    this->internalConvertProgram(text, &elements);
-    auto result = std::unique_ptr<Program>(new Program(kind, std::move(elements), 
+    Modifiers::Flag defaultPrecision;
+    this->internalConvertProgram(text, &defaultPrecision, &elements);
+    auto result = std::unique_ptr<Program>(new Program(kind, defaultPrecision, std::move(elements), 
                                                        fIRGenerator->fSymbolTable));;
     fIRGenerator->popSymbolTable();
     this->writeErrorCount();