diff --git a/tools/emulator/opengl/shared/OpenglCodecCommon/GLClientState.cpp b/tools/emulator/opengl/shared/OpenglCodecCommon/GLClientState.cpp
index 85def13e6..a7e2ea008 100644
--- a/tools/emulator/opengl/shared/OpenglCodecCommon/GLClientState.cpp
+++ b/tools/emulator/opengl/shared/OpenglCodecCommon/GLClientState.cpp
@@ -70,7 +70,7 @@ void GLClientState::enable(int location, int state)
     m_states[location].enabled = state;
 }
 
-void GLClientState::setState(int location, int size, GLenum type, GLsizei stride, void *data)
+void GLClientState::setState(int location, int size, GLenum type, GLboolean normalized, GLsizei stride, void *data)
 {
     if (!validLocation(location)) {
         return;
@@ -81,6 +81,7 @@ void GLClientState::setState(int location, int size, GLenum type, GLsizei stride
     m_states[location].data = data;
     m_states[location].bufferObject = m_currentArrayVbo;
     m_states[location].elementSize = glSizeof(type) * size;
+    m_states[location].normalized = normalized;
 }
 
 void GLClientState::setBufferObject(int location, GLuint id)
@@ -210,7 +211,7 @@ int GLClientState::setPixelStore(GLenum param, GLint value)
 
 
 
-size_t GLClientState::pixelDataSize(GLsizei width, GLsizei height, GLenum format, GLenum type, int pack)
+size_t GLClientState::pixelDataSize(GLsizei width, GLsizei height, GLenum format, GLenum type, int pack) const
 {
     int pixelsize = glUtilsPixelBitSize(format, type) >> 3;
 
diff --git a/tools/emulator/opengl/shared/OpenglCodecCommon/GLClientState.h b/tools/emulator/opengl/shared/OpenglCodecCommon/GLClientState.h
index b68007888..2126241a7 100644
--- a/tools/emulator/opengl/shared/OpenglCodecCommon/GLClientState.h
+++ b/tools/emulator/opengl/shared/OpenglCodecCommon/GLClientState.h
@@ -24,8 +24,12 @@
 
 #include <GLES/gl.h>
 #include <GLES/glext.h>
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
 #include <stdio.h>
 #include <stdlib.h>
+#include "ErrorLog.h"
 
 class GLClientState {
 public:
@@ -57,6 +61,7 @@ public:
         GLenum glConst;
         unsigned int elementSize;
         bool enableDirty;  // true if any enable state has changed since last draw
+        bool normalized;
     } VertexAttribState;
 
     typedef struct {
@@ -67,18 +72,20 @@ public:
 public:
     GLClientState(int nLocations = 32);
     ~GLClientState();
+    int nLocations() { return m_nLocations; }
     const PixelStoreState *pixelStoreState() { return &m_pixelStore; }
     int setPixelStore(GLenum param, GLint value);
     GLuint currentArrayVbo() { return m_currentArrayVbo; }
     GLuint currentIndexVbo() { return m_currentIndexVbo; }
     void enable(int location, int state);
-    void setState(int  location, int size, GLenum type, GLsizei stride, void *data);
+    void setState(int  location, int size, GLenum type, GLboolean normalized, GLsizei stride, void *data);
     void setBufferObject(int location, GLuint id);
     const VertexAttribState  *getState(int location);
     const VertexAttribState  *getStateAndEnableDirty(int location, bool *enableChanged);
     int getLocation(GLenum loc);
     void setActiveTexture(int texUnit) {m_activeTexture = texUnit; };
     int getActiveTexture() const { return m_activeTexture; }
+
     int bindBuffer(GLenum target, GLuint id)
     {
         int err = 0;
@@ -94,6 +101,7 @@ public:
         }
         return err;
     }
+
     int getBuffer(GLenum target)
     {
       int ret=0;
@@ -109,7 +117,7 @@ public:
       }
       return ret;
     }
-    size_t pixelDataSize(GLsizei width, GLsizei height, GLenum format, GLenum type, int pack);
+    size_t pixelDataSize(GLsizei width, GLsizei height, GLenum format, GLenum type, int pack) const;
 
 private:
     PixelStoreState m_pixelStore;
@@ -123,6 +131,46 @@ private:
     bool validLocation(int location) { return (location >= 0 && location < m_nLocations); }
 public:
     void getClientStatePointer(GLenum pname, GLvoid** params);
+
+    template <class T>
+    int getVertexAttribParameter(GLuint index, GLenum param, T *ptr)
+    {
+        bool handled = true;
+        const VertexAttribState *vertexAttrib = getState(index);
+        if (vertexAttrib == NULL) {
+            ERR("getVeterxAttriParameter for non existant index %d\n", index);
+            // set gl error;
+            return handled;
+        }
+
+        switch(param) {
+        case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING:
+            *ptr = (T)(vertexAttrib->bufferObject);
+            break;
+        case GL_VERTEX_ATTRIB_ARRAY_ENABLED:
+            *ptr = (T)(vertexAttrib->enabled);
+            break;
+        case GL_VERTEX_ATTRIB_ARRAY_SIZE:
+            *ptr = (T)(vertexAttrib->size);
+            break;
+        case GL_VERTEX_ATTRIB_ARRAY_STRIDE:
+            *ptr = (T)(vertexAttrib->stride);
+            break;
+        case GL_VERTEX_ATTRIB_ARRAY_TYPE:
+            *ptr = (T)(vertexAttrib->type);
+            break;
+        case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED:
+            *ptr = (T)(vertexAttrib->normalized);
+            break;
+        case GL_CURRENT_VERTEX_ATTRIB:
+            handled = false;
+            break;
+        default:
+            ERR("unknown vertex-attrib parameter param %d\n", param);
+        }
+        return handled;
+    }
+
     template <class T>
     bool getClientStateParameter(GLenum param, T* ptr)
     {
diff --git a/tools/emulator/opengl/shared/OpenglCodecCommon/glUtils.cpp b/tools/emulator/opengl/shared/OpenglCodecCommon/glUtils.cpp
index 9e8dc7864..597919386 100644
--- a/tools/emulator/opengl/shared/OpenglCodecCommon/glUtils.cpp
+++ b/tools/emulator/opengl/shared/OpenglCodecCommon/glUtils.cpp
@@ -49,6 +49,7 @@ size_t glUtilsParamSize(GLenum param)
 
     switch(param)
     {
+    case GL_DEPTH_FUNC:
     case GL_DEPTH_BITS:
     case GL_MAX_CLIP_PLANES:
     case GL_GREEN_BITS:
@@ -158,9 +159,16 @@ size_t glUtilsParamSize(GLenum param)
     case GL_STENCIL_FUNC:
     case GL_STENCIL_TEST:
     case GL_STENCIL_VALUE_MASK:
-    case GL_SUBPIXEL_BITS:
+    case GL_STENCIL_BACK_FUNC:
+    case GL_STENCIL_BACK_VALUE_MASK:
+    case GL_STENCIL_BACK_REF:
+    case GL_STENCIL_BACK_FAIL:
+    case GL_STENCIL_BACK_PASS_DEPTH_FAIL:
+    case GL_STENCIL_BACK_PASS_DEPTH_PASS:
+    case GL_STENCIL_BACK_WRITEMASK:
     case GL_TEXTURE_2D:
     case GL_TEXTURE_BINDING_2D:
+    case GL_TEXTURE_BINDING_CUBE_MAP:
     case GL_TEXTURE_COORD_ARRAY:
     case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING:
     case GL_TEXTURE_COORD_ARRAY_SIZE:
@@ -178,6 +186,7 @@ size_t glUtilsParamSize(GLenum param)
     case GL_TEXTURE_WRAP_S:
     case GL_TEXTURE_WRAP_T:
     case GL_GENERATE_MIPMAP:
+    case GL_GENERATE_MIPMAP_HINT:
     case GL_RENDERBUFFER_WIDTH_OES:
     case GL_RENDERBUFFER_HEIGHT_OES:
     case GL_RENDERBUFFER_INTERNAL_FORMAT_OES:
@@ -187,6 +196,8 @@ size_t glUtilsParamSize(GLenum param)
     case GL_RENDERBUFFER_ALPHA_SIZE_OES:
     case GL_RENDERBUFFER_DEPTH_SIZE_OES:
     case GL_RENDERBUFFER_STENCIL_SIZE_OES:
+    case GL_RENDERBUFFER_BINDING:
+    case GL_FRAMEBUFFER_BINDING:
     case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_OES:
     case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_OES:
     case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_OES:
@@ -210,6 +221,28 @@ size_t glUtilsParamSize(GLenum param)
     case GL_BLEND_DST_ALPHA_OES:
     case GL_BLEND_SRC_ALPHA_OES:
     case GL_MAX_LIGHTS:
+    case GL_SHADER_TYPE:
+    case GL_DELETE_STATUS:
+    case GL_COMPILE_STATUS:
+    case GL_INFO_LOG_LENGTH:
+    case GL_SHADER_SOURCE_LENGTH:
+    case GL_CURRENT_PROGRAM:
+    case GL_LINK_STATUS:
+    case GL_VALIDATE_STATUS:
+    case GL_ATTACHED_SHADERS:
+    case GL_ACTIVE_UNIFORMS:
+    case GL_ACTIVE_ATTRIBUTES:
+    case GL_SUBPIXEL_BITS:
+    case GL_MAX_CUBE_MAP_TEXTURE_SIZE:
+    case GL_NUM_SHADER_BINARY_FORMATS:
+    case GL_SHADER_COMPILER:
+    case GL_MAX_VERTEX_ATTRIBS:
+    case GL_MAX_VERTEX_UNIFORM_VECTORS:
+    case GL_MAX_VARYING_VECTORS:
+    case GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS:
+    case GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS:
+    case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
+    case GL_MAX_RENDERBUFFER_SIZE:
         s = 1;
         break;
     case GL_ALIASED_LINE_WIDTH_RANGE:
@@ -225,6 +258,7 @@ size_t glUtilsParamSize(GLenum param)
     case GL_CURRENT_NORMAL:
         s =  3;
         break;
+    case GL_CURRENT_VERTEX_ATTRIB:
     case GL_CURRENT_TEXTURE_COORDS:
     case GL_CURRENT_COLOR:
     case GL_FOG_COLOR:
@@ -247,7 +281,7 @@ size_t glUtilsParamSize(GLenum param)
     case GL_PROJECTION_MATRIX:
     case GL_TEXTURE_MATRIX:
         s = 16;
-	break;
+    break;
     default:
         ERR("glUtilsParamSize: unknow param 0x%08x\n", param);
         s = 1; // assume 1
@@ -328,3 +362,25 @@ int glUtilsPixelBitSize(GLenum format, GLenum type)
 
     return pixelsize;
 }
+
+
+int glUtilsSumArrayValues(GLint *array, GLsizei count)
+{
+    int sum = 0;
+    for (int i = 0; i < count; i++) {
+        sum += *array;
+        array++;
+    }
+    return sum;
+}
+
+void glUtilsPackStrings(void *ptr, char **strings, GLint *length, GLsizei count)
+{
+    unsigned char *p = (unsigned char *)ptr;
+    for (int i = 0; i < count; i++) {
+        memcpy(p, *strings, *length);
+        p += *length;
+        strings++;
+        length++;
+    }
+}
diff --git a/tools/emulator/opengl/shared/OpenglCodecCommon/glUtils.h b/tools/emulator/opengl/shared/OpenglCodecCommon/glUtils.h
index 1c1259a92..3a1ec544b 100644
--- a/tools/emulator/opengl/shared/OpenglCodecCommon/glUtils.h
+++ b/tools/emulator/opengl/shared/OpenglCodecCommon/glUtils.h
@@ -39,6 +39,8 @@
 
 #include <GLES/gl.h>
 #include <GLES/glext.h>
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -50,6 +52,8 @@ extern "C" {
                            int size, GLenum type, unsigned int stride,
                            unsigned int datalen);
     int glUtilsPixelBitSize(GLenum format, GLenum type);
+    int    glUtilsSumArrayValues(GLint *array, GLsizei count);
+    void   glUtilsPackStrings(void *ptr, char **strings, GLint *length, GLsizei count);
 #ifdef __cplusplus
 };
 #endif
diff --git a/tools/emulator/opengl/system/GLESv1_enc/GLEncoder.cpp b/tools/emulator/opengl/system/GLESv1_enc/GLEncoder.cpp
index edc75bc38..dea34c81f 100644
--- a/tools/emulator/opengl/system/GLESv1_enc/GLEncoder.cpp
+++ b/tools/emulator/opengl/system/GLESv1_enc/GLEncoder.cpp
@@ -147,28 +147,28 @@ void GLEncoder::s_glVertexPointer(void *self, int size, GLenum type, GLsizei str
 {
     GLEncoder *ctx = (GLEncoder *)self;
     assert(ctx->m_state != NULL);
-    ctx->m_state->setState(GLClientState::VERTEX_LOCATION, size, type, stride, data);
+    ctx->m_state->setState(GLClientState::VERTEX_LOCATION, size, type, false, stride, data);
 }
 
 void GLEncoder::s_glNormalPointer(void *self, GLenum type, GLsizei stride, void *data)
 {
     GLEncoder *ctx = (GLEncoder *)self;
     assert(ctx->m_state != NULL);
-    ctx->m_state->setState(GLClientState::NORMAL_LOCATION, 3, type, stride, data);
+    ctx->m_state->setState(GLClientState::NORMAL_LOCATION, 3, type, false, stride, data);
 }
 
 void GLEncoder::s_glColorPointer(void *self, int size, GLenum type, GLsizei stride, void *data)
 {
     GLEncoder *ctx = (GLEncoder *)self;
     assert(ctx->m_state != NULL);
-    ctx->m_state->setState(GLClientState::COLOR_LOCATION, size, type, stride, data);
+    ctx->m_state->setState(GLClientState::COLOR_LOCATION, size, type, false, stride, data);
 }
 
 void GLEncoder::s_glPointsizePointer(void *self, GLenum type, GLsizei stride, void *data)
 {
     GLEncoder *ctx = (GLEncoder *)self;
     assert(ctx->m_state != NULL);
-    ctx->m_state->setState(GLClientState::POINTSIZE_LOCATION, 1, type, stride, data);
+    ctx->m_state->setState(GLClientState::POINTSIZE_LOCATION, 1, type, false, stride, data);
 }
 
 void GLEncoder::s_glClientActiveTexture(void *self, GLenum texture)
@@ -183,7 +183,7 @@ void GLEncoder::s_glTexcoordPointer(void *self, int size, GLenum type, GLsizei s
     GLEncoder *ctx = (GLEncoder *)self;
     assert(ctx->m_state != NULL);
     int loc = ctx->m_state->getLocation(GL_TEXTURE_COORD_ARRAY);
-    ctx->m_state->setState(loc, size, type, stride, data);
+    ctx->m_state->setState(loc, size, type, false, stride, data);
 }
 
 void GLEncoder::s_glMatrixIndexPointerOES(void *self, int size, GLenum type, GLsizei stride, void * data)
@@ -191,7 +191,7 @@ void GLEncoder::s_glMatrixIndexPointerOES(void *self, int size, GLenum type, GLs
     GLEncoder *ctx = (GLEncoder *)self;
     assert(ctx->m_state != NULL);
     int loc = ctx->m_state->getLocation(GL_MATRIX_INDEX_ARRAY_OES);
-    ctx->m_state->setState(loc, size, type, stride, data);
+    ctx->m_state->setState(loc, size, type, false, stride, data);
 }
 
 void GLEncoder::s_glWeightPointerOES(void * self, int size, GLenum type, GLsizei stride, void * data)
@@ -199,7 +199,7 @@ void GLEncoder::s_glWeightPointerOES(void * self, int size, GLenum type, GLsizei
     GLEncoder *ctx = (GLEncoder *)self;
     assert(ctx->m_state != NULL);
     int loc = ctx->m_state->getLocation(GL_WEIGHT_ARRAY_OES);
-    ctx->m_state->setState(loc, size, type, stride, data);
+    ctx->m_state->setState(loc, size, type, false, stride, data);
 }
 
 void GLEncoder::s_glEnableClientState(void *self, GLenum state)