Revert "Merge the ProgramBinary class into Program."

Issues appeared on the FYI waterfall, content_gl_tests hangs.

This reverts commit 2195a6d6032883ed05468d5ecd019e7cb9a27bce.

Change-Id: I9fe1a53cf40887ae5a98fd77b4872f41085fcea7
Reviewed-on: https://chromium-review.googlesource.com/232386
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>
diff --git a/src/libANGLE/Program.cpp b/src/libANGLE/Program.cpp
index 0c086b4..6453454 100644
--- a/src/libANGLE/Program.cpp
+++ b/src/libANGLE/Program.cpp
@@ -8,47 +8,14 @@
 // and related functionality. [OpenGL ES 2.0.24] section 2.10.3 page 28.
 
 #include "libANGLE/Program.h"
+#include "libANGLE/ProgramBinary.h"
 #include "libANGLE/ResourceManager.h"
-#include "libANGLE/Data.h"
-#include "libANGLE/features.h"
 #include "libANGLE/renderer/Renderer.h"
-#include "libANGLE/renderer/ProgramImpl.h"
-#include "libANGLE/renderer/d3d/ShaderD3D.h"
-#include "libANGLE/renderer/d3d/VertexDataManager.h"
-
-#include "common/debug.h"
-#include "common/version.h"
-#include "common/utilities.h"
-#include "common/platform.h"
-#include "common/blocklayout.h"
-
-#include <algorithm>
 
 namespace gl
 {
 const char * const g_fakepath = "C:\\fakepath";
 
-namespace
-{
-
-unsigned int ParseAndStripArrayIndex(std::string* name)
-{
-    unsigned int subscript = GL_INVALID_INDEX;
-
-    // Strip any trailing array operator and retrieve the subscript
-    size_t open = name->find_last_of('[');
-    size_t close = name->find_last_of(']');
-    if (open != std::string::npos && close == name->length() - 1)
-    {
-        subscript = atoi(name->substr(open + 1).c_str());
-        name->erase(open);
-    }
-
-    return subscript;
-}
-
-}
-
 AttributeBindings::AttributeBindings()
 {
 }
@@ -169,41 +136,17 @@
     }
 }
 
-VariableLocation::VariableLocation()
-    : name(), element(0), index(0)
+Program::Program(rx::Renderer *renderer, ResourceManager *manager, GLuint handle) : mResourceManager(manager), mHandle(handle)
 {
-}
-
-VariableLocation::VariableLocation(const std::string &name, unsigned int element, unsigned int index)
-    : name(name), element(element), index(index)
-{
-}
-
-LinkedVarying::LinkedVarying()
-{
-}
-
-LinkedVarying::LinkedVarying(const std::string &name, GLenum type, GLsizei size, const std::string &semanticName,
-                             unsigned int semanticIndex, unsigned int semanticIndexCount)
-    : name(name), type(type), size(size), semanticName(semanticName), semanticIndex(semanticIndex), semanticIndexCount(semanticIndexCount)
-{
-}
-
-Program::Program(rx::ProgramImpl *impl, ResourceManager *manager, GLuint handle)
-    : mProgram(impl),
-      mValidated(false),
-      mFragmentShader(NULL),
-      mVertexShader(NULL),
-      mLinked(false),
-      mDeleteStatus(false),
-      mRefCount(0),
-      mResourceManager(manager),
-      mHandle(handle)
-{
-    ASSERT(mProgram);
+    mFragmentShader = NULL;
+    mVertexShader = NULL;
+    mProgramBinary.set(NULL);
+    mDeleteStatus = false;
+    mLinked = false;
+    mRefCount = 0;
+    mRenderer = renderer;
 
     resetUniformBlockBindings();
-    unlink();
 }
 
 Program::~Program()
@@ -219,8 +162,6 @@
     {
         mFragmentShader->release();
     }
-
-    SafeDelete(mProgram);
 }
 
 bool Program::attachShader(Shader *shader)
@@ -310,59 +251,15 @@
     mInfoLog.reset();
     resetUniformBlockBindings();
 
-    if (!mFragmentShader || !mFragmentShader->isCompiled())
-    {
-        return Error(GL_NO_ERROR);
-    }
-    ASSERT(mFragmentShader->getType() == GL_FRAGMENT_SHADER);
-
-    if (!mVertexShader || !mVertexShader->isCompiled())
-    {
-        return Error(GL_NO_ERROR);
-    }
-    ASSERT(mVertexShader->getType() == GL_VERTEX_SHADER);
-
-    int registers;
-    std::vector<LinkedVarying> linkedVaryings;
-    rx::LinkResult result = mProgram->link(data, mInfoLog, mFragmentShader, mVertexShader, mTransformFeedbackVaryings, mTransformFeedbackBufferMode,
-                                           &registers, &linkedVaryings, &mOutputVariables);
-    if (result.error.isError() || !result.linkSuccess)
+    mProgramBinary.set(new ProgramBinary(mRenderer->createProgram()));
+    LinkResult result = mProgramBinary->link(data, mInfoLog, mAttributeBindings, mFragmentShader, mVertexShader,
+                                             mTransformFeedbackVaryings, mTransformFeedbackBufferMode);
+    if (result.error.isError())
     {
         return result.error;
     }
 
-    if (!linkAttributes(mInfoLog, mAttributeBindings, mVertexShader))
-    {
-        return Error(GL_NO_ERROR);
-    }
-
-    if (!mProgram->linkUniforms(mInfoLog, *mVertexShader, *mFragmentShader, *data.caps))
-    {
-        return Error(GL_NO_ERROR);
-    }
-
-    if (!linkUniformBlocks(mInfoLog, *mVertexShader, *mFragmentShader, *data.caps))
-    {
-        return Error(GL_NO_ERROR);
-    }
-
-    if (!gatherTransformFeedbackLinkedVaryings(mInfoLog, linkedVaryings, mTransformFeedbackVaryings,
-                                               mTransformFeedbackBufferMode, &mProgram->getTransformFeedbackLinkedVaryings(), *data.caps))
-    {
-        return Error(GL_NO_ERROR);
-    }
-
-    // TODO: The concept of "executables" is D3D only, and as such this belongs in ProgramD3D. It must be called,
-    // however, last in this function, so it can't simply be moved to ProgramD3D::link without further shuffling.
-    result = mProgram->compileProgramExecutables(mInfoLog, mFragmentShader, mVertexShader, registers);
-    if (result.error.isError() || !result.linkSuccess)
-    {
-        mInfoLog.append("Failed to create D3D shaders.");
-        unlink(false);
-        return result.error;
-    }
-
-    mLinked = true;
+    mLinked = result.linkSuccess;
     return gl::Error(GL_NO_ERROR);
 }
 
@@ -397,15 +294,7 @@
         }
     }
 
-    std::fill(mLinkedAttribute, mLinkedAttribute + ArraySize(mLinkedAttribute), sh::Attribute());
-    std::fill(mSemanticIndex, mSemanticIndex + ArraySize(mSemanticIndex), -1);
-    std::fill(mAttributesByLayout, mAttributesByLayout + ArraySize(mAttributesByLayout), -1);
-    mOutputVariables.clear();
-
-    mProgram->reset();
-
-    mValidated = false;
-
+    mProgramBinary.set(NULL);
     mLinked = false;
 }
 
@@ -414,146 +303,27 @@
     return mLinked;
 }
 
-Error Program::loadBinary(GLenum binaryFormat, const void *binary, GLsizei length)
+ProgramBinary* Program::getProgramBinary() const
+{
+    return mProgramBinary.get();
+}
+
+Error Program::setProgramBinary(GLenum binaryFormat, const void *binary, GLsizei length)
 {
     unlink(false);
 
-#if ANGLE_PROGRAM_BINARY_LOAD != ANGLE_ENABLED
-    return Error(GL_NO_ERROR);
-#else
-    ASSERT(binaryFormat == mProgram->getBinaryFormat());
+    mInfoLog.reset();
 
-    BinaryInputStream stream(binary, length);
-
-    GLenum format = stream.readInt<GLenum>();
-    if (format != mProgram->getBinaryFormat())
+    mProgramBinary.set(new ProgramBinary(mRenderer->createProgram()));
+    LinkResult result = mProgramBinary->load(mInfoLog, binaryFormat, binary, length);
+    if (result.error.isError())
     {
-        mInfoLog.append("Invalid program binary format.");
-        return Error(GL_NO_ERROR);
-    }
-
-    int majorVersion = stream.readInt<int>();
-    int minorVersion = stream.readInt<int>();
-    if (majorVersion != ANGLE_MAJOR_VERSION || minorVersion != ANGLE_MINOR_VERSION)
-    {
-        mInfoLog.append("Invalid program binary version.");
-        return Error(GL_NO_ERROR);
-    }
-
-    unsigned char commitString[ANGLE_COMMIT_HASH_SIZE];
-    stream.readBytes(commitString, ANGLE_COMMIT_HASH_SIZE);
-    if (memcmp(commitString, ANGLE_COMMIT_HASH, sizeof(unsigned char) * ANGLE_COMMIT_HASH_SIZE) != 0)
-    {
-        mInfoLog.append("Invalid program binary version.");
-        return Error(GL_NO_ERROR);
-    }
-
-    // TODO: move to ProgramImpl
-    int compileFlags = stream.readInt<int>();
-    if (compileFlags != ANGLE_COMPILE_OPTIMIZATION_LEVEL)
-    {
-        mInfoLog.append("Mismatched compilation flags.");
-        return Error(GL_NO_ERROR);
-    }
-
-    for (int i = 0; i < MAX_VERTEX_ATTRIBS; ++i)
-    {
-        stream.readInt(&mLinkedAttribute[i].type);
-        stream.readString(&mLinkedAttribute[i].name);
-        stream.readInt(&mProgram->getShaderAttributes()[i].type);
-        stream.readString(&mProgram->getShaderAttributes()[i].name);
-        stream.readInt(&mSemanticIndex[i]);
-    }
-
-    initAttributesByLayout();
-
-    rx::LinkResult result = mProgram->load(mInfoLog, &stream);
-    if (result.error.isError() || !result.linkSuccess)
-    {
+        mProgramBinary.set(NULL);
         return result.error;
     }
 
-    mLinked = true;
+    mLinked = result.linkSuccess;
     return Error(GL_NO_ERROR);
-#endif // #if ANGLE_PROGRAM_BINARY_LOAD == ANGLE_ENABLED
-}
-
-Error Program::saveBinary(GLenum *binaryFormat, void *binary, GLsizei bufSize, GLsizei *length) const
-{
-    if (binaryFormat)
-    {
-        *binaryFormat = mProgram->getBinaryFormat();
-    }
-
-    BinaryOutputStream stream;
-
-    stream.writeInt(mProgram->getBinaryFormat());
-    stream.writeInt(ANGLE_MAJOR_VERSION);
-    stream.writeInt(ANGLE_MINOR_VERSION);
-    stream.writeBytes(reinterpret_cast<const unsigned char*>(ANGLE_COMMIT_HASH), ANGLE_COMMIT_HASH_SIZE);
-
-    // TODO: move to ProgramImpl
-    stream.writeInt(ANGLE_COMPILE_OPTIMIZATION_LEVEL);
-
-    for (unsigned int i = 0; i < MAX_VERTEX_ATTRIBS; ++i)
-    {
-        stream.writeInt(mLinkedAttribute[i].type);
-        stream.writeString(mLinkedAttribute[i].name);
-        stream.writeInt(mProgram->getShaderAttributes()[i].type);
-        stream.writeString(mProgram->getShaderAttributes()[i].name);
-        stream.writeInt(mSemanticIndex[i]);
-    }
-
-    gl::Error error = mProgram->save(&stream);
-    if (error.isError())
-    {
-        return error;
-    }
-
-    GLsizei streamLength = stream.length();
-    const void *streamData = stream.data();
-
-    if (streamLength > bufSize)
-    {
-        if (length)
-        {
-            *length = 0;
-        }
-
-        // TODO: This should be moved to the validation layer but computing the size of the binary before saving
-        // it causes the save to happen twice.  It may be possible to write the binary to a separate buffer, validate
-        // sizes and then copy it.
-        return Error(GL_INVALID_OPERATION);
-    }
-
-    if (binary)
-    {
-        char *ptr = reinterpret_cast<char*>(binary);
-
-        memcpy(ptr, streamData, streamLength);
-        ptr += streamLength;
-
-        ASSERT(ptr - streamLength == binary);
-    }
-
-    if (length)
-    {
-        *length = streamLength;
-    }
-
-    return Error(GL_NO_ERROR);
-}
-
-GLint Program::getBinaryLength() const
-{
-    GLint length;
-    Error error = saveBinary(NULL, NULL, std::numeric_limits<GLint>::max(), &length);
-    if (error.isError())
-    {
-        return 0;
-    }
-
-    return length;
 }
 
 void Program::release()
@@ -576,6 +346,19 @@
     return mRefCount;
 }
 
+GLint Program::getProgramBinaryLength() const
+{
+    ProgramBinary *programBinary = mProgramBinary.get();
+    if (programBinary)
+    {
+        return programBinary->getLength();
+    }
+    else
+    {
+        return 0;
+    }
+}
+
 int Program::getInfoLogLength() const
 {
     return mInfoLog.getLength();
@@ -616,64 +399,12 @@
     }
 }
 
-GLuint Program::getAttributeLocation(const std::string &name)
-{
-    for (int index = 0; index < MAX_VERTEX_ATTRIBS; index++)
-    {
-        if (mLinkedAttribute[index].name == name)
-        {
-            return index;
-        }
-    }
-
-    return -1;
-}
-
-int Program::getSemanticIndex(int attributeIndex)
-{
-    ASSERT(attributeIndex >= 0 && attributeIndex < MAX_VERTEX_ATTRIBS);
-
-    return mSemanticIndex[attributeIndex];
-}
-
 void Program::getActiveAttribute(GLuint index, GLsizei bufsize, GLsizei *length, GLint *size, GLenum *type, GLchar *name)
 {
-    if (mLinked)
+    ProgramBinary *programBinary = getProgramBinary();
+    if (programBinary)
     {
-        // Skip over inactive attributes
-        unsigned int activeAttribute = 0;
-        unsigned int attribute;
-        for (attribute = 0; attribute < MAX_VERTEX_ATTRIBS; attribute++)
-        {
-            if (mLinkedAttribute[attribute].name.empty())
-            {
-                continue;
-            }
-
-            if (activeAttribute == index)
-            {
-                break;
-            }
-
-            activeAttribute++;
-        }
-
-        if (bufsize > 0)
-        {
-            const char *string = mLinkedAttribute[attribute].name.c_str();
-
-            strncpy(name, string, bufsize);
-            name[bufsize - 1] = '\0';
-
-            if (length)
-            {
-                *length = strlen(name);
-            }
-        }
-
-        *size = 1;   // Always a single 'type' instance
-
-        *type = mLinkedAttribute[attribute].type;
+        programBinary->getActiveAttribute(index, bufsize, length, size, type, name);
     }
     else
     {
@@ -681,7 +412,7 @@
         {
             name[0] = '\0';
         }
-
+        
         if (length)
         {
             *length = 0;
@@ -694,102 +425,36 @@
 
 GLint Program::getActiveAttributeCount()
 {
-    int count = 0;
-
-    if (mLinked)
+    ProgramBinary *programBinary = getProgramBinary();
+    if (programBinary)
     {
-        for (int attributeIndex = 0; attributeIndex < MAX_VERTEX_ATTRIBS; attributeIndex++)
-        {
-            if (!mLinkedAttribute[attributeIndex].name.empty())
-            {
-                count++;
-            }
-        }
+        return programBinary->getActiveAttributeCount();
     }
-
-    return count;
+    else
+    {
+        return 0;
+    }
 }
 
 GLint Program::getActiveAttributeMaxLength()
 {
-    int maxLength = 0;
-
-    if (mLinked)
+    ProgramBinary *programBinary = getProgramBinary();
+    if (programBinary)
     {
-        for (int attributeIndex = 0; attributeIndex < MAX_VERTEX_ATTRIBS; attributeIndex++)
-        {
-            if (!mLinkedAttribute[attributeIndex].name.empty())
-            {
-                maxLength = std::max((int)(mLinkedAttribute[attributeIndex].name.length() + 1), maxLength);
-            }
-        }
+        return programBinary->getActiveAttributeMaxLength();
     }
-
-    return maxLength;
-}
-
-// Returns one more than the highest sampler index used.
-GLint Program::getUsedSamplerRange(SamplerType type)
-{
-    return mProgram->getUsedSamplerRange(type);
-}
-
-bool Program::usesPointSize() const
-{
-    return mProgram->usesPointSize();
-}
-
-GLint Program::getSamplerMapping(SamplerType type, unsigned int samplerIndex, const Caps &caps)
-{
-    return mProgram->getSamplerMapping(type, samplerIndex, caps);
-}
-
-GLenum Program::getSamplerTextureType(SamplerType type, unsigned int samplerIndex)
-{
-    return mProgram->getSamplerTextureType(type, samplerIndex);
-}
-
-GLint Program::getFragDataLocation(const std::string &name) const
-{
-    std::string baseName(name);
-    unsigned int arrayIndex = ParseAndStripArrayIndex(&baseName);
-    for (auto locationIt = mOutputVariables.begin(); locationIt != mOutputVariables.end(); locationIt++)
+    else
     {
-        const VariableLocation &outputVariable = locationIt->second;
-        if (outputVariable.name == baseName && (arrayIndex == GL_INVALID_INDEX || arrayIndex == outputVariable.element))
-        {
-            return static_cast<GLint>(locationIt->first);
-        }
+        return 0;
     }
-    return -1;
 }
 
 void Program::getActiveUniform(GLuint index, GLsizei bufsize, GLsizei *length, GLint *size, GLenum *type, GLchar *name)
 {
-    if (mLinked)
+    ProgramBinary *programBinary = getProgramBinary();
+    if (programBinary)
     {
-        ASSERT(index < mProgram->getUniforms().size());   // index must be smaller than getActiveUniformCount()
-        LinkedUniform *uniform = mProgram->getUniforms()[index];
-
-        if (bufsize > 0)
-        {
-            std::string string = uniform->name;
-            if (uniform->isArray())
-            {
-                string += "[0]";
-            }
-
-            strncpy(name, string.c_str(), bufsize);
-            name[bufsize - 1] = '\0';
-
-            if (length)
-            {
-                *length = strlen(name);
-            }
-        }
-
-        *size = uniform->elementCount();
-        *type = uniform->type;
+        return programBinary->getActiveUniform(index, bufsize, length, size, type, name);
     }
     else
     {
@@ -810,9 +475,10 @@
 
 GLint Program::getActiveUniformCount()
 {
-    if (mLinked)
+    ProgramBinary *programBinary = getProgramBinary();
+    if (programBinary)
     {
-        return mProgram->getUniforms().size();
+        return programBinary->getActiveUniformCount();
     }
     else
     {
@@ -822,203 +488,15 @@
 
 GLint Program::getActiveUniformMaxLength()
 {
-    int maxLength = 0;
-
-    if (mLinked)
+    ProgramBinary *programBinary = getProgramBinary();
+    if (programBinary)
     {
-        unsigned int numUniforms = mProgram->getUniforms().size();
-        for (unsigned int uniformIndex = 0; uniformIndex < numUniforms; uniformIndex++)
-        {
-            if (!mProgram->getUniforms()[uniformIndex]->name.empty())
-            {
-                int length = (int)(mProgram->getUniforms()[uniformIndex]->name.length() + 1);
-                if (mProgram->getUniforms()[uniformIndex]->isArray())
-                {
-                    length += 3;  // Counting in "[0]".
-                }
-                maxLength = std::max(length, maxLength);
-            }
-        }
+        return programBinary->getActiveUniformMaxLength();
     }
-
-    return maxLength;
-}
-
-GLint Program::getActiveUniformi(GLuint index, GLenum pname) const
-{
-    const gl::LinkedUniform& uniform = *mProgram->getUniforms()[index];
-    switch (pname)
+    else
     {
-      case GL_UNIFORM_TYPE:         return static_cast<GLint>(uniform.type);
-      case GL_UNIFORM_SIZE:         return static_cast<GLint>(uniform.elementCount());
-      case GL_UNIFORM_NAME_LENGTH:  return static_cast<GLint>(uniform.name.size() + 1 + (uniform.isArray() ? 3 : 0));
-      case GL_UNIFORM_BLOCK_INDEX:  return uniform.blockIndex;
-      case GL_UNIFORM_OFFSET:       return uniform.blockInfo.offset;
-      case GL_UNIFORM_ARRAY_STRIDE: return uniform.blockInfo.arrayStride;
-      case GL_UNIFORM_MATRIX_STRIDE: return uniform.blockInfo.matrixStride;
-      case GL_UNIFORM_IS_ROW_MAJOR: return static_cast<GLint>(uniform.blockInfo.isRowMajorMatrix);
-      default:
-        UNREACHABLE();
-        break;
+        return 0;
     }
-    return 0;
-}
-
-bool Program::isValidUniformLocation(GLint location) const
-{
-    ASSERT(rx::IsIntegerCastSafe<GLint>(mProgram->getUniformIndices().size()));
-    return (location >= 0 && location < static_cast<GLint>(mProgram->getUniformIndices().size()));
-}
-
-LinkedUniform *Program::getUniformByLocation(GLint location) const
-{
-    return mProgram->getUniformByLocation(location);
-}
-
-LinkedUniform *Program::getUniformByName(const std::string &name) const
-{
-    return mProgram->getUniformByName(name);
-}
-
-GLint Program::getUniformLocation(const std::string &name)
-{
-    return mProgram->getUniformLocation(name);
-}
-
-GLuint Program::getUniformIndex(const std::string &name)
-{
-    return mProgram->getUniformIndex(name);
-}
-
-void Program::setUniform1fv(GLint location, GLsizei count, const GLfloat *v)
-{
-    mProgram->setUniform1fv(location, count, v);
-}
-
-void Program::setUniform2fv(GLint location, GLsizei count, const GLfloat *v)
-{
-    mProgram->setUniform2fv(location, count, v);
-}
-
-void Program::setUniform3fv(GLint location, GLsizei count, const GLfloat *v)
-{
-    mProgram->setUniform3fv(location, count, v);
-}
-
-void Program::setUniform4fv(GLint location, GLsizei count, const GLfloat *v)
-{
-    mProgram->setUniform4fv(location, count, v);
-}
-
-void Program::setUniform1iv(GLint location, GLsizei count, const GLint *v)
-{
-    mProgram->setUniform1iv(location, count, v);
-}
-
-void Program::setUniform2iv(GLint location, GLsizei count, const GLint *v)
-{
-    mProgram->setUniform2iv(location, count, v);
-}
-
-void Program::setUniform3iv(GLint location, GLsizei count, const GLint *v)
-{
-    mProgram->setUniform3iv(location, count, v);
-}
-
-void Program::setUniform4iv(GLint location, GLsizei count, const GLint *v)
-{
-    mProgram->setUniform4iv(location, count, v);
-}
-
-void Program::setUniform1uiv(GLint location, GLsizei count, const GLuint *v)
-{
-    mProgram->setUniform1uiv(location, count, v);
-}
-
-void Program::setUniform2uiv(GLint location, GLsizei count, const GLuint *v)
-{
-    mProgram->setUniform2uiv(location, count, v);
-}
-
-void Program::setUniform3uiv(GLint location, GLsizei count, const GLuint *v)
-{
-    mProgram->setUniform3uiv(location, count, v);
-}
-
-void Program::setUniform4uiv(GLint location, GLsizei count, const GLuint *v)
-{
-    mProgram->setUniform4uiv(location, count, v);
-}
-
-void Program::setUniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *v)
-{
-    mProgram->setUniformMatrix2fv(location, count, transpose, v);
-}
-
-void Program::setUniformMatrix3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *v)
-{
-    mProgram->setUniformMatrix3fv(location, count, transpose, v);
-}
-
-void Program::setUniformMatrix4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *v)
-{
-    mProgram->setUniformMatrix4fv(location, count, transpose, v);
-}
-
-void Program::setUniformMatrix2x3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *v)
-{
-    mProgram->setUniformMatrix2x3fv(location, count, transpose, v);
-}
-
-void Program::setUniformMatrix2x4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *v)
-{
-    mProgram->setUniformMatrix2x4fv(location, count, transpose, v);
-}
-
-void Program::setUniformMatrix3x2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *v)
-{
-    mProgram->setUniformMatrix3x2fv(location, count, transpose, v);
-}
-
-void Program::setUniformMatrix3x4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *v)
-{
-    mProgram->setUniformMatrix3x4fv(location, count, transpose, v);
-}
-
-void Program::setUniformMatrix4x2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *v)
-{
-    mProgram->setUniformMatrix4x2fv(location, count, transpose, v);
-}
-
-void Program::setUniformMatrix4x3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *v)
-{
-    mProgram->setUniformMatrix4x3fv(location, count, transpose, v);
-}
-
-void Program::getUniformfv(GLint location, GLfloat *v)
-{
-    mProgram->getUniformfv(location, v);
-}
-
-void Program::getUniformiv(GLint location, GLint *v)
-{
-    mProgram->getUniformiv(location, v);
-}
-
-void Program::getUniformuiv(GLint location, GLuint *v)
-{
-    mProgram->getUniformuiv(location, v);
-}
-
-// Applies all the uniforms set for this program object to the renderer
-Error Program::applyUniforms()
-{
-    return mProgram->applyUniforms();
-}
-
-Error Program::applyUniformBuffers(const std::vector<gl::Buffer*> boundBuffers, const Caps &caps)
-{
-    return mProgram->applyUniformBuffers(boundBuffers, caps);
 }
 
 void Program::flagForDeletion()
@@ -1034,12 +512,11 @@
 void Program::validate(const Caps &caps)
 {
     mInfoLog.reset();
-    mValidated = false;
 
-    if (mLinked)
+    ProgramBinary *programBinary = getProgramBinary();
+    if (isLinked() && programBinary)
     {
-        applyUniforms();
-        mValidated = mProgram->validateSamplers(&mInfoLog, caps);
+        programBinary->validate(mInfoLog, caps);
     }
     else
     {
@@ -1047,114 +524,43 @@
     }
 }
 
-bool Program::validateSamplers(InfoLog *infoLog, const Caps &caps)
-{
-    return mProgram->validateSamplers(infoLog, caps);
-}
-
 bool Program::isValidated() const
 {
-    return mValidated;
-}
-
-void Program::updateSamplerMapping()
-{
-    return mProgram->updateSamplerMapping();
-}
-
-GLuint Program::getActiveUniformBlockCount()
-{
-    return mProgram->getUniformBlocks().size();
-}
-
-void Program::getActiveUniformBlockName(GLuint uniformBlockIndex, GLsizei bufSize, GLsizei *length, GLchar *uniformBlockName) const
-{
-    ASSERT(uniformBlockIndex < mProgram->getUniformBlocks().size());   // index must be smaller than getActiveUniformBlockCount()
-
-    const UniformBlock &uniformBlock = *mProgram->getUniformBlocks()[uniformBlockIndex];
-
-    if (bufSize > 0)
+    ProgramBinary *programBinary = mProgramBinary.get();
+    if (programBinary)
     {
-        std::string string = uniformBlock.name;
-
-        if (uniformBlock.isArrayElement())
-        {
-            string += ArrayString(uniformBlock.elementIndex);
-        }
-
-        strncpy(uniformBlockName, string.c_str(), bufSize);
-        uniformBlockName[bufSize - 1] = '\0';
-
-        if (length)
-        {
-            *length = strlen(uniformBlockName);
-        }
+        return programBinary->isValidated();
+    }
+    else
+    {
+        return false;
     }
 }
 
-void Program::getActiveUniformBlockiv(GLuint uniformBlockIndex, GLenum pname, GLint *params) const
+GLint Program::getActiveUniformBlockCount()
 {
-    ASSERT(uniformBlockIndex < mProgram->getUniformBlocks().size());   // index must be smaller than getActiveUniformBlockCount()
-
-    const UniformBlock &uniformBlock = *mProgram->getUniformBlocks()[uniformBlockIndex];
-
-    switch (pname)
+    ProgramBinary *programBinary = getProgramBinary();
+    if (programBinary)
     {
-      case GL_UNIFORM_BLOCK_DATA_SIZE:
-        *params = static_cast<GLint>(uniformBlock.dataSize);
-        break;
-      case GL_UNIFORM_BLOCK_NAME_LENGTH:
-        *params = static_cast<GLint>(uniformBlock.name.size() + 1 + (uniformBlock.isArrayElement() ? 3 : 0));
-        break;
-      case GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS:
-        *params = static_cast<GLint>(uniformBlock.memberUniformIndexes.size());
-        break;
-      case GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES:
-        {
-            for (unsigned int blockMemberIndex = 0; blockMemberIndex < uniformBlock.memberUniformIndexes.size(); blockMemberIndex++)
-            {
-                params[blockMemberIndex] = static_cast<GLint>(uniformBlock.memberUniformIndexes[blockMemberIndex]);
-            }
-        }
-        break;
-      case GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER:
-        *params = static_cast<GLint>(uniformBlock.isReferencedByVertexShader());
-        break;
-      case GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER:
-        *params = static_cast<GLint>(uniformBlock.isReferencedByFragmentShader());
-        break;
-      default: UNREACHABLE();
+        return static_cast<GLint>(programBinary->getActiveUniformBlockCount());
+    }
+    else
+    {
+        return 0;
     }
 }
 
 GLint Program::getActiveUniformBlockMaxLength()
 {
-    int maxLength = 0;
-
-    if (mLinked)
+    ProgramBinary *programBinary = getProgramBinary();
+    if (programBinary)
     {
-        unsigned int numUniformBlocks = mProgram->getUniformBlocks().size();
-        for (unsigned int uniformBlockIndex = 0; uniformBlockIndex < numUniformBlocks; uniformBlockIndex++)
-        {
-            const UniformBlock &uniformBlock = *mProgram->getUniformBlocks()[uniformBlockIndex];
-            if (!uniformBlock.name.empty())
-            {
-                const int length = uniformBlock.name.length() + 1;
-
-                // Counting in "[0]".
-                const int arrayLength = (uniformBlock.isArrayElement() ? 3 : 0);
-
-                maxLength = std::max(length + arrayLength, maxLength);
-            }
-        }
+        return static_cast<GLint>(programBinary->getActiveUniformBlockMaxLength());
     }
-
-    return maxLength;
-}
-
-GLuint Program::getUniformBlockIndex(const std::string &name)
-{
-    return mProgram->getUniformBlockIndex(name);
+    else
+    {
+        return 0;
+    }
 }
 
 void Program::bindUniformBlock(GLuint uniformBlockIndex, GLuint uniformBlockBinding)
@@ -1188,10 +594,10 @@
 
 void Program::getTransformFeedbackVarying(GLuint index, GLsizei bufSize, GLsizei *length, GLsizei *size, GLenum *type, GLchar *name) const
 {
-    if (mLinked)
+    ProgramBinary *programBinary = getProgramBinary();
+    if (programBinary && index < programBinary->getTransformFeedbackVaryingCount())
     {
-        ASSERT(index < mProgram->getTransformFeedbackLinkedVaryings().size());
-        const LinkedVarying &varying = mProgram->getTransformFeedbackLinkedVaryings()[index];
+        const LinkedVarying &varying = programBinary->getTransformFeedbackVarying(index);
         GLsizei lastNameIdx = std::min(bufSize - 1, static_cast<GLsizei>(varying.name.length()));
         if (length)
         {
@@ -1215,9 +621,10 @@
 
 GLsizei Program::getTransformFeedbackVaryingCount() const
 {
-    if (mLinked)
+    ProgramBinary *programBinary = getProgramBinary();
+    if (programBinary)
     {
-        return static_cast<GLsizei>(mProgram->getTransformFeedbackLinkedVaryings().size());
+        return static_cast<GLsizei>(programBinary->getTransformFeedbackVaryingCount());
     }
     else
     {
@@ -1227,12 +634,13 @@
 
 GLsizei Program::getTransformFeedbackVaryingMaxLength() const
 {
-    if (mLinked)
+    ProgramBinary *programBinary = getProgramBinary();
+    if (programBinary)
     {
         GLsizei maxSize = 0;
-        for (size_t i = 0; i < mProgram->getTransformFeedbackLinkedVaryings().size(); i++)
+        for (size_t i = 0; i < programBinary->getTransformFeedbackVaryingCount(); i++)
         {
-            const LinkedVarying &varying = mProgram->getTransformFeedbackLinkedVaryings()[i];
+            const LinkedVarying &varying = programBinary->getTransformFeedbackVarying(i);
             maxSize = std::max(maxSize, static_cast<GLsizei>(varying.name.length() + 1));
         }
 
@@ -1246,430 +654,15 @@
 
 GLenum Program::getTransformFeedbackBufferMode() const
 {
-    return mTransformFeedbackBufferMode;
-}
-
-struct AttributeSorter
-{
-    AttributeSorter(const int(&semanticIndices)[MAX_VERTEX_ATTRIBS])
-        : originalIndices(semanticIndices)
+    ProgramBinary *programBinary = getProgramBinary();
+    if (programBinary)
     {
+        return programBinary->getTransformFeedbackBufferMode();
     }
-
-    bool operator()(int a, int b)
+    else
     {
-        if (originalIndices[a] == -1) return false;
-        if (originalIndices[b] == -1) return true;
-        return (originalIndices[a] < originalIndices[b]);
+        return mTransformFeedbackBufferMode;
     }
-
-    const int(&originalIndices)[MAX_VERTEX_ATTRIBS];
-};
-
-void Program::initAttributesByLayout()
-{
-    for (int i = 0; i < MAX_VERTEX_ATTRIBS; i++)
-    {
-        mAttributesByLayout[i] = i;
-    }
-
-    std::sort(&mAttributesByLayout[0], &mAttributesByLayout[MAX_VERTEX_ATTRIBS], AttributeSorter(mSemanticIndex));
-}
-
-void Program::sortAttributesByLayout(rx::TranslatedAttribute attributes[MAX_VERTEX_ATTRIBS], int sortedSemanticIndices[MAX_VERTEX_ATTRIBS]) const
-{
-    rx::TranslatedAttribute oldTranslatedAttributes[MAX_VERTEX_ATTRIBS];
-
-    for (int i = 0; i < MAX_VERTEX_ATTRIBS; i++)
-    {
-        oldTranslatedAttributes[i] = attributes[i];
-    }
-
-    for (int i = 0; i < MAX_VERTEX_ATTRIBS; i++)
-    {
-        int oldIndex = mAttributesByLayout[i];
-        sortedSemanticIndices[i] = mSemanticIndex[oldIndex];
-        attributes[i] = oldTranslatedAttributes[oldIndex];
-    }
-}
-
-bool Program::linkVaryings(InfoLog &infoLog, Shader *fragmentShader, Shader *vertexShader)
-{
-    std::vector<PackedVarying> &fragmentVaryings = fragmentShader->getVaryings();
-    std::vector<PackedVarying> &vertexVaryings = vertexShader->getVaryings();
-
-    for (size_t fragVaryingIndex = 0; fragVaryingIndex < fragmentVaryings.size(); fragVaryingIndex++)
-    {
-        PackedVarying *input = &fragmentVaryings[fragVaryingIndex];
-        bool matched = false;
-
-        // Built-in varyings obey special rules
-        if (input->isBuiltIn())
-        {
-            continue;
-        }
-
-        for (size_t vertVaryingIndex = 0; vertVaryingIndex < vertexVaryings.size(); vertVaryingIndex++)
-        {
-            PackedVarying *output = &vertexVaryings[vertVaryingIndex];
-            if (output->name == input->name)
-            {
-                if (!linkValidateVaryings(infoLog, output->name, *input, *output))
-                {
-                    return false;
-                }
-
-                output->registerIndex = input->registerIndex;
-                output->columnIndex = input->columnIndex;
-
-                matched = true;
-                break;
-            }
-        }
-
-        // We permit unmatched, unreferenced varyings
-        if (!matched && input->staticUse)
-        {
-            infoLog.append("Fragment varying %s does not match any vertex varying", input->name.c_str());
-            return false;
-        }
-    }
-
-    return true;
-}
-
-bool Program::linkValidateInterfaceBlockFields(InfoLog &infoLog, const std::string &uniformName, const sh::InterfaceBlockField &vertexUniform, const sh::InterfaceBlockField &fragmentUniform)
-{
-    if (!linkValidateVariablesBase(infoLog, uniformName, vertexUniform, fragmentUniform, true))
-    {
-        return false;
-    }
-
-    if (vertexUniform.isRowMajorLayout != fragmentUniform.isRowMajorLayout)
-    {
-        infoLog.append("Matrix packings for %s differ between vertex and fragment shaders", uniformName.c_str());
-        return false;
-    }
-
-    return true;
-}
-
-// Determines the mapping between GL attributes and Direct3D 9 vertex stream usage indices
-bool Program::linkAttributes(InfoLog &infoLog, const AttributeBindings &attributeBindings, const Shader *vertexShader)
-{
-    const rx::ShaderD3D *vertexShaderD3D = rx::ShaderD3D::makeShaderD3D(vertexShader->getImplementation());
-
-    unsigned int usedLocations = 0;
-    const std::vector<sh::Attribute> &shaderAttributes = vertexShader->getActiveAttributes();
-
-    // Link attributes that have a binding location
-    for (unsigned int attributeIndex = 0; attributeIndex < shaderAttributes.size(); attributeIndex++)
-    {
-        const sh::Attribute &attribute = shaderAttributes[attributeIndex];
-
-        ASSERT(attribute.staticUse);
-
-        const int location = attribute.location == -1 ? attributeBindings.getAttributeBinding(attribute.name) : attribute.location;
-
-        mProgram->getShaderAttributes()[attributeIndex] = attribute;
-
-        if (location != -1)   // Set by glBindAttribLocation or by location layout qualifier
-        {
-            const int rows = VariableRegisterCount(attribute.type);
-
-            if (rows + location > MAX_VERTEX_ATTRIBS)
-            {
-                infoLog.append("Active attribute (%s) at location %d is too big to fit", attribute.name.c_str(), location);
-
-                return false;
-            }
-
-            for (int row = 0; row < rows; row++)
-            {
-                const int rowLocation = location + row;
-                sh::ShaderVariable &linkedAttribute = mLinkedAttribute[rowLocation];
-
-                // In GLSL 3.00, attribute aliasing produces a link error
-                // In GLSL 1.00, attribute aliasing is allowed
-                if (mProgram->getShaderVersion() >= 300)
-                {
-                    if (!linkedAttribute.name.empty())
-                    {
-                        infoLog.append("Attribute '%s' aliases attribute '%s' at location %d", attribute.name.c_str(), linkedAttribute.name.c_str(), rowLocation);
-                        return false;
-                    }
-                }
-
-                linkedAttribute = attribute;
-                usedLocations |= 1 << rowLocation;
-            }
-        }
-    }
-
-    // Link attributes that don't have a binding location
-    for (unsigned int attributeIndex = 0; attributeIndex < shaderAttributes.size(); attributeIndex++)
-    {
-        const sh::Attribute &attribute = shaderAttributes[attributeIndex];
-
-        ASSERT(attribute.staticUse);
-
-        const int location = attribute.location == -1 ? attributeBindings.getAttributeBinding(attribute.name) : attribute.location;
-
-        if (location == -1)   // Not set by glBindAttribLocation or by location layout qualifier
-        {
-            int rows = VariableRegisterCount(attribute.type);
-            int availableIndex = AllocateFirstFreeBits(&usedLocations, rows, MAX_VERTEX_ATTRIBS);
-
-            if (availableIndex == -1 || availableIndex + rows > MAX_VERTEX_ATTRIBS)
-            {
-                infoLog.append("Too many active attributes (%s)", attribute.name.c_str());
-
-                return false;   // Fail to link
-            }
-
-            mLinkedAttribute[availableIndex] = attribute;
-        }
-    }
-
-    for (int attributeIndex = 0; attributeIndex < MAX_VERTEX_ATTRIBS; )
-    {
-        int index = vertexShaderD3D->getSemanticIndex(mLinkedAttribute[attributeIndex].name);
-        int rows = VariableRegisterCount(mLinkedAttribute[attributeIndex].type);
-
-        for (int r = 0; r < rows; r++)
-        {
-            mSemanticIndex[attributeIndex++] = index++;
-        }
-    }
-
-    initAttributesByLayout();
-
-    return true;
-}
-
-bool Program::linkUniformBlocks(InfoLog &infoLog, const Shader &vertexShader, const Shader &fragmentShader, const Caps &caps)
-{
-    const std::vector<sh::InterfaceBlock> &vertexInterfaceBlocks = vertexShader.getInterfaceBlocks();
-    const std::vector<sh::InterfaceBlock> &fragmentInterfaceBlocks = fragmentShader.getInterfaceBlocks();
-    // Check that interface blocks defined in the vertex and fragment shaders are identical
-    typedef std::map<std::string, const sh::InterfaceBlock*> UniformBlockMap;
-    UniformBlockMap linkedUniformBlocks;
-    for (unsigned int blockIndex = 0; blockIndex < vertexInterfaceBlocks.size(); blockIndex++)
-    {
-        const sh::InterfaceBlock &vertexInterfaceBlock = vertexInterfaceBlocks[blockIndex];
-        linkedUniformBlocks[vertexInterfaceBlock.name] = &vertexInterfaceBlock;
-    }
-    for (unsigned int blockIndex = 0; blockIndex < fragmentInterfaceBlocks.size(); blockIndex++)
-    {
-        const sh::InterfaceBlock &fragmentInterfaceBlock = fragmentInterfaceBlocks[blockIndex];
-        UniformBlockMap::const_iterator entry = linkedUniformBlocks.find(fragmentInterfaceBlock.name);
-        if (entry != linkedUniformBlocks.end())
-        {
-            const sh::InterfaceBlock &vertexInterfaceBlock = *entry->second;
-            if (!areMatchingInterfaceBlocks(infoLog, vertexInterfaceBlock, fragmentInterfaceBlock))
-            {
-                return false;
-            }
-        }
-    }
-    for (unsigned int blockIndex = 0; blockIndex < vertexInterfaceBlocks.size(); blockIndex++)
-    {
-        const sh::InterfaceBlock &interfaceBlock = vertexInterfaceBlocks[blockIndex];
-        // Note: shared and std140 layouts are always considered active
-        if (interfaceBlock.staticUse || interfaceBlock.layout != sh::BLOCKLAYOUT_PACKED)
-        {
-            if (!mProgram->defineUniformBlock(infoLog, vertexShader, interfaceBlock, caps))
-            {
-                return false;
-            }
-        }
-    }
-    for (unsigned int blockIndex = 0; blockIndex < fragmentInterfaceBlocks.size(); blockIndex++)
-    {
-        const sh::InterfaceBlock &interfaceBlock = fragmentInterfaceBlocks[blockIndex];
-        // Note: shared and std140 layouts are always considered active
-        if (interfaceBlock.staticUse || interfaceBlock.layout != sh::BLOCKLAYOUT_PACKED)
-        {
-            if (!mProgram->defineUniformBlock(infoLog, fragmentShader, interfaceBlock, caps))
-            {
-                return false;
-            }
-        }
-    }
-    return true;
-}
-
-bool Program::areMatchingInterfaceBlocks(gl::InfoLog &infoLog, const sh::InterfaceBlock &vertexInterfaceBlock,
-                                         const sh::InterfaceBlock &fragmentInterfaceBlock)
-{
-    const char* blockName = vertexInterfaceBlock.name.c_str();
-    // validate blocks for the same member types
-    if (vertexInterfaceBlock.fields.size() != fragmentInterfaceBlock.fields.size())
-    {
-        infoLog.append("Types for interface block '%s' differ between vertex and fragment shaders", blockName);
-        return false;
-    }
-    if (vertexInterfaceBlock.arraySize != fragmentInterfaceBlock.arraySize)
-    {
-        infoLog.append("Array sizes differ for interface block '%s' between vertex and fragment shaders", blockName);
-        return false;
-    }
-    if (vertexInterfaceBlock.layout != fragmentInterfaceBlock.layout || vertexInterfaceBlock.isRowMajorLayout != fragmentInterfaceBlock.isRowMajorLayout)
-    {
-        infoLog.append("Layout qualifiers differ for interface block '%s' between vertex and fragment shaders", blockName);
-        return false;
-    }
-    const unsigned int numBlockMembers = vertexInterfaceBlock.fields.size();
-    for (unsigned int blockMemberIndex = 0; blockMemberIndex < numBlockMembers; blockMemberIndex++)
-    {
-        const sh::InterfaceBlockField &vertexMember = vertexInterfaceBlock.fields[blockMemberIndex];
-        const sh::InterfaceBlockField &fragmentMember = fragmentInterfaceBlock.fields[blockMemberIndex];
-        if (vertexMember.name != fragmentMember.name)
-        {
-            infoLog.append("Name mismatch for field %d of interface block '%s': (in vertex: '%s', in fragment: '%s')",
-                           blockMemberIndex, blockName, vertexMember.name.c_str(), fragmentMember.name.c_str());
-            return false;
-        }
-        std::string memberName = "interface block '" + vertexInterfaceBlock.name + "' member '" + vertexMember.name + "'";
-        if (!linkValidateInterfaceBlockFields(infoLog, memberName, vertexMember, fragmentMember))
-        {
-            return false;
-        }
-    }
-    return true;
-}
-
-bool Program::linkValidateVariablesBase(InfoLog &infoLog, const std::string &variableName, const sh::ShaderVariable &vertexVariable,
-                                              const sh::ShaderVariable &fragmentVariable, bool validatePrecision)
-{
-    if (vertexVariable.type != fragmentVariable.type)
-    {
-        infoLog.append("Types for %s differ between vertex and fragment shaders", variableName.c_str());
-        return false;
-    }
-    if (vertexVariable.arraySize != fragmentVariable.arraySize)
-    {
-        infoLog.append("Array sizes for %s differ between vertex and fragment shaders", variableName.c_str());
-        return false;
-    }
-    if (validatePrecision && vertexVariable.precision != fragmentVariable.precision)
-    {
-        infoLog.append("Precisions for %s differ between vertex and fragment shaders", variableName.c_str());
-        return false;
-    }
-
-    if (vertexVariable.fields.size() != fragmentVariable.fields.size())
-    {
-        infoLog.append("Structure lengths for %s differ between vertex and fragment shaders", variableName.c_str());
-        return false;
-    }
-    const unsigned int numMembers = vertexVariable.fields.size();
-    for (unsigned int memberIndex = 0; memberIndex < numMembers; memberIndex++)
-    {
-        const sh::ShaderVariable &vertexMember = vertexVariable.fields[memberIndex];
-        const sh::ShaderVariable &fragmentMember = fragmentVariable.fields[memberIndex];
-
-        if (vertexMember.name != fragmentMember.name)
-        {
-            infoLog.append("Name mismatch for field '%d' of %s: (in vertex: '%s', in fragment: '%s')",
-                           memberIndex, variableName.c_str(),
-                           vertexMember.name.c_str(), fragmentMember.name.c_str());
-            return false;
-        }
-
-        const std::string memberName = variableName.substr(0, variableName.length() - 1) + "." +
-                                       vertexMember.name + "'";
-
-        if (!linkValidateVariablesBase(infoLog, vertexMember.name, vertexMember, fragmentMember, validatePrecision))
-        {
-            return false;
-        }
-    }
-
-    return true;
-}
-
-bool Program::linkValidateUniforms(InfoLog &infoLog, const std::string &uniformName, const sh::Uniform &vertexUniform, const sh::Uniform &fragmentUniform)
-{
-    if (!linkValidateVariablesBase(infoLog, uniformName, vertexUniform, fragmentUniform, true))
-    {
-        return false;
-    }
-
-    return true;
-}
-
-bool Program::linkValidateVaryings(InfoLog &infoLog, const std::string &varyingName, const sh::Varying &vertexVarying, const sh::Varying &fragmentVarying)
-{
-    if (!linkValidateVariablesBase(infoLog, varyingName, vertexVarying, fragmentVarying, false))
-    {
-        return false;
-    }
-
-    if (vertexVarying.interpolation != fragmentVarying.interpolation)
-    {
-        infoLog.append("Interpolation types for %s differ between vertex and fragment shaders", varyingName.c_str());
-        return false;
-    }
-
-    return true;
-}
-
-bool Program::gatherTransformFeedbackLinkedVaryings(InfoLog &infoLog, const std::vector<LinkedVarying> &linkedVaryings,
-                                                    const std::vector<std::string> &transformFeedbackVaryingNames,
-                                                    GLenum transformFeedbackBufferMode,
-                                                    std::vector<LinkedVarying> *outTransformFeedbackLinkedVaryings,
-                                                    const Caps &caps) const
-{
-    size_t totalComponents = 0;
-
-    // Gather the linked varyings that are used for transform feedback, they should all exist.
-    outTransformFeedbackLinkedVaryings->clear();
-    for (size_t i = 0; i < transformFeedbackVaryingNames.size(); i++)
-    {
-        bool found = false;
-        for (size_t j = 0; j < linkedVaryings.size(); j++)
-        {
-            if (transformFeedbackVaryingNames[i] == linkedVaryings[j].name)
-            {
-                for (size_t k = 0; k < outTransformFeedbackLinkedVaryings->size(); k++)
-                {
-                    if (outTransformFeedbackLinkedVaryings->at(k).name == linkedVaryings[j].name)
-                    {
-                        infoLog.append("Two transform feedback varyings specify the same output variable (%s).", linkedVaryings[j].name.c_str());
-                        return false;
-                    }
-                }
-
-                size_t componentCount = linkedVaryings[j].semanticIndexCount * 4;
-                if (transformFeedbackBufferMode == GL_SEPARATE_ATTRIBS &&
-                    componentCount > caps.maxTransformFeedbackSeparateComponents)
-                {
-                    infoLog.append("Transform feedback varying's %s components (%u) exceed the maximum separate components (%u).",
-                                   linkedVaryings[j].name.c_str(), componentCount, caps.maxTransformFeedbackSeparateComponents);
-                    return false;
-                }
-
-                totalComponents += componentCount;
-
-                outTransformFeedbackLinkedVaryings->push_back(linkedVaryings[j]);
-                found = true;
-                break;
-            }
-        }
-
-        // All transform feedback varyings are expected to exist since packVaryings checks for them.
-        ASSERT(found);
-    }
-
-    if (transformFeedbackBufferMode == GL_INTERLEAVED_ATTRIBS && totalComponents > caps.maxTransformFeedbackInterleavedComponents)
-    {
-        infoLog.append("Transform feedback varying total components (%u) exceed the maximum interleaved components (%u).",
-                       totalComponents, caps.maxTransformFeedbackInterleavedComponents);
-        return false;
-    }
-
-    return true;
 }
 
 }