Use dynamically sized containers for texture and sampler bindings.

BUG=angle:685

Change-Id: I7af97a95deee69fbdebca2b57403244f45516e67
Reviewed-on: https://chromium-review.googlesource.com/216564
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>

17 files changed, 302 insertions, 334 deletions

diff --git a/src/libGLESv2/Context.cpp b/src/libGLESv2/Context.cpp
index f2852b06..87480c46 100644
--- a/src/libGLESv2/Context.cpp
+++ b/src/libGLESv2/Context.cpp
@@ -43,6 +43,7 @@ Context::Context(int clientVersion, const gl::Context *shareContext, rx::Rendere
     ASSERT(robustAccess == false);   // Unimplemented
 
     initCaps(clientVersion);
+    mState.initialize(mCaps, clientVersion);
 
     mClientVersion = clientVersion;
 
@@ -64,16 +65,26 @@ Context::Context(int clientVersion, const gl::Context *shareContext, rx::Rendere
     // In order that access to these initial textures not be lost, they are treated as texture
     // objects all of whose names are 0.
 
-    mTexture2DZero.set(new Texture2D(mRenderer->createTexture(GL_TEXTURE_2D), 0));
-    mTextureCubeMapZero.set(new TextureCubeMap(mRenderer->createTexture(GL_TEXTURE_CUBE_MAP), 0));
-    mTexture3DZero.set(new Texture3D(mRenderer->createTexture(GL_TEXTURE_3D), 0));
-    mTexture2DArrayZero.set(new Texture2DArray(mRenderer->createTexture(GL_TEXTURE_2D_ARRAY), 0));
+    mZeroTextures[GL_TEXTURE_2D].set(new Texture2D(mRenderer->createTexture(GL_TEXTURE_2D), 0));
+    bindTexture(GL_TEXTURE_2D, 0);
+
+    mZeroTextures[GL_TEXTURE_CUBE_MAP].set(new TextureCubeMap(mRenderer->createTexture(GL_TEXTURE_CUBE_MAP), 0));
+    bindTexture(GL_TEXTURE_CUBE_MAP, 0);
+
+    if (mClientVersion >= 3)
+    {
+        // TODO: These could also be enabled via extension
+        mZeroTextures[GL_TEXTURE_3D].set(new Texture3D(mRenderer->createTexture(GL_TEXTURE_3D), 0));
+        bindTexture(GL_TEXTURE_3D, 0);
+
+        mZeroTextures[GL_TEXTURE_2D_ARRAY].set(new Texture2DArray(mRenderer->createTexture(GL_TEXTURE_2D_ARRAY), 0));
+        bindTexture(GL_TEXTURE_2D_ARRAY, 0);
+    }
 
     bindVertexArray(0);
     bindArrayBuffer(0);
     bindElementArrayBuffer(0);
-    bindTextureCubeMap(0);
-    bindTexture2D(0);
+
     bindReadFramebuffer(0);
     bindDrawFramebuffer(0);
     bindRenderbuffer(0);
@@ -151,15 +162,17 @@ Context::~Context()
         deleteTransformFeedback(mTransformFeedbackMap.begin()->first);
     }
 
-    for (int type = 0; type < TEXTURE_TYPE_COUNT; type++)
+    for (TextureMap::iterator i = mIncompleteTextures.begin(); i != mIncompleteTextures.end(); i++)
     {
-        mIncompleteTextures[type].set(NULL);
+        i->second.set(NULL);
     }
+    mIncompleteTextures.clear();
 
-    mTexture2DZero.set(NULL);
-    mTextureCubeMapZero.set(NULL);
-    mTexture3DZero.set(NULL);
-    mTexture2DArrayZero.set(NULL);
+    for (TextureMap::iterator i = mZeroTextures.begin(); i != mZeroTextures.end(); i++)
+    {
+        i->second.set(NULL);
+    }
+    mZeroTextures.clear();
 
     mResourceManager->release();
 }
@@ -501,32 +514,11 @@ void Context::bindElementArrayBuffer(unsigned int buffer)
     mState.getVertexArray()->setElementArrayBuffer(getBuffer(buffer));
 }
 
-void Context::bindTexture2D(GLuint texture)
-{
-    mResourceManager->checkTextureAllocation(texture, TEXTURE_2D);
-
-    mState.setSamplerTexture(TEXTURE_2D, getTexture(texture));
-}
-
-void Context::bindTextureCubeMap(GLuint texture)
-{
-    mResourceManager->checkTextureAllocation(texture, TEXTURE_CUBE);
-
-    mState.setSamplerTexture(TEXTURE_CUBE, getTexture(texture));
-}
-
-void Context::bindTexture3D(GLuint texture)
-{
-    mResourceManager->checkTextureAllocation(texture, TEXTURE_3D);
-
-    mState.setSamplerTexture(TEXTURE_3D, getTexture(texture));
-}
-
-void Context::bindTexture2DArray(GLuint texture)
+void Context::bindTexture(GLenum target, GLuint texture)
 {
-    mResourceManager->checkTextureAllocation(texture, TEXTURE_2D_ARRAY);
+    mResourceManager->checkTextureAllocation(texture, target);
 
-    mState.setSamplerTexture(TEXTURE_2D_ARRAY, getTexture(texture));
+    mState.setSamplerTexture(target, getTexture(texture));
 }
 
 void Context::bindReadFramebuffer(GLuint framebuffer)
@@ -569,7 +561,7 @@ void Context::bindVertexArray(GLuint vertexArray)
 
 void Context::bindSampler(GLuint textureUnit, GLuint sampler)
 {
-    ASSERT(textureUnit < IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS); // TODO: Update for backend-determined array size
+    ASSERT(textureUnit < mCaps.maxCombinedTextureImageUnits);
     mResourceManager->checkSamplerAllocation(sampler);
 
     mState.setSamplerBinding(textureUnit, getSampler(sampler));
@@ -824,36 +816,29 @@ Texture *Context::getTargetTexture(GLenum target) const
 
 Texture2D *Context::getTexture2D() const
 {
-    return static_cast<Texture2D*>(getSamplerTexture(mState.getActiveSampler(), TEXTURE_2D));
+    return static_cast<Texture2D*>(getSamplerTexture(mState.getActiveSampler(), GL_TEXTURE_2D));
 }
 
 TextureCubeMap *Context::getTextureCubeMap() const
 {
-    return static_cast<TextureCubeMap*>(getSamplerTexture(mState.getActiveSampler(), TEXTURE_CUBE));
+    return static_cast<TextureCubeMap*>(getSamplerTexture(mState.getActiveSampler(), GL_TEXTURE_CUBE_MAP));
 }
 
 Texture3D *Context::getTexture3D() const
 {
-    return static_cast<Texture3D*>(getSamplerTexture(mState.getActiveSampler(), TEXTURE_3D));
+    return static_cast<Texture3D*>(getSamplerTexture(mState.getActiveSampler(), GL_TEXTURE_3D));
 }
 
 Texture2DArray *Context::getTexture2DArray() const
 {
-    return static_cast<Texture2DArray*>(getSamplerTexture(mState.getActiveSampler(), TEXTURE_2D_ARRAY));
+    return static_cast<Texture2DArray*>(getSamplerTexture(mState.getActiveSampler(), GL_TEXTURE_2D_ARRAY));
 }
 
-Texture *Context::getSamplerTexture(unsigned int sampler, TextureType type) const
+Texture *Context::getSamplerTexture(unsigned int sampler, GLenum type) const
 {
     if (mState.getSamplerTextureId(sampler, type) == 0)
     {
-        switch (type)
-        {
-          default: UNREACHABLE();
-          case TEXTURE_2D:       return mTexture2DZero.get();
-          case TEXTURE_CUBE:     return mTextureCubeMapZero.get();
-          case TEXTURE_3D:       return mTexture3DZero.get();
-          case TEXTURE_2D_ARRAY: return mTexture2DArrayZero.get();
-        }
+        return mZeroTextures.at(type).get();
     }
     else
     {
@@ -1405,63 +1390,54 @@ void Context::applyShaders(ProgramBinary *programBinary, bool transformFeedbackA
     programBinary->applyUniforms();
 }
 
-size_t Context::getCurrentTexturesAndSamplerStates(ProgramBinary *programBinary, SamplerType type, Texture **outTextures,
-                                                   TextureType *outTextureTypes, SamplerState *outSamplers)
+void Context::generateSwizzles(ProgramBinary *programBinary, SamplerType type)
 {
     size_t samplerRange = programBinary->getUsedSamplerRange(type);
+
     for (size_t i = 0; i < samplerRange; i++)
     {
-        outTextureTypes[i] = programBinary->getSamplerTextureType(type, i);
-        GLint textureUnit = programBinary->getSamplerMapping(type, i, getCaps());   // OpenGL texture image unit index
+        GLenum textureType = programBinary->getSamplerTextureType(type, i);
+        GLint textureUnit = programBinary->getSamplerMapping(type, i, getCaps());
         if (textureUnit != -1)
         {
-            outTextures[i] = getSamplerTexture(textureUnit, outTextureTypes[i]);
-            outTextures[i]->getSamplerStateWithNativeOffset(&outSamplers[i]);
-            Sampler *samplerObject = mState.getSampler(textureUnit);
-            if (samplerObject)
+            Texture* texture = getSamplerTexture(textureUnit, textureType);
+            if (texture->getSamplerState().swizzleRequired())
             {
-                samplerObject->getState(&outSamplers[i]);
+                mRenderer->generateSwizzle(texture);
             }
         }
-        else
-        {
-            outTextures[i] = NULL;
-        }
     }
-
-    return samplerRange;
 }
 
-void Context::generateSwizzles(Texture *textures[], size_t count)
+void Context::generateSwizzles(ProgramBinary *programBinary)
 {
-    for (size_t i = 0; i < count; i++)
-    {
-        if (textures[i] && textures[i]->getSamplerState().swizzleRequired())
-        {
-            mRenderer->generateSwizzle(textures[i]);
-        }
-    }
+    generateSwizzles(programBinary, SAMPLER_VERTEX);
+    generateSwizzles(programBinary, SAMPLER_PIXEL);
 }
 
 // For each Direct3D sampler of either the pixel or vertex stage,
 // looks up the corresponding OpenGL texture image unit and texture type,
 // and sets the texture and its addressing/filtering state (or NULL when inactive).
-void Context::applyTextures(SamplerType shaderType, Texture *textures[], TextureType *textureTypes, SamplerState *samplers,
-                            size_t textureCount, const FramebufferTextureSerialArray& framebufferSerials,
-                            size_t framebufferSerialCount)
+void Context::applyTextures(ProgramBinary *programBinary, SamplerType shaderType,
+                            const FramebufferTextureSerialArray &framebufferSerials, size_t framebufferSerialCount)
 {
-    // Range of Direct3D samplers of given sampler type
-    size_t samplerCount = (shaderType == SAMPLER_PIXEL) ? mCaps.maxTextureImageUnits
-                                                        : mCaps.maxVertexTextureImageUnits;
-
-    for (size_t samplerIndex = 0; samplerIndex < textureCount; samplerIndex++)
+    size_t samplerRange = programBinary->getUsedSamplerRange(shaderType);
+    for (size_t samplerIndex = 0; samplerIndex < samplerRange; samplerIndex++)
     {
-        Texture *texture = textures[samplerIndex];
-        const SamplerState &sampler = samplers[samplerIndex];
-        TextureType textureType = textureTypes[samplerIndex];
-
-        if (texture)
+        GLenum textureType = programBinary->getSamplerTextureType(shaderType, samplerIndex);
+        GLint textureUnit = programBinary->getSamplerMapping(shaderType, samplerIndex, getCaps());
+        if (textureUnit != -1)
         {
+            SamplerState sampler;
+            Texture* texture = getSamplerTexture(textureUnit, textureType);
+            texture->getSamplerStateWithNativeOffset(&sampler);
+
+            Sampler *samplerObject = mState.getSampler(textureUnit);
+            if (samplerObject)
+            {
+                samplerObject->getState(&sampler);
+            }
+
             // TODO: std::binary_search may become unavailable using older versions of GCC
             if (texture->isSamplerComplete(sampler, mTextureCaps, mExtensions, mClientVersion) &&
                 !std::binary_search(framebufferSerials.begin(), framebufferSerials.begin() + framebufferSerialCount, texture->getTextureSerial()))
@@ -1471,22 +1447,36 @@ void Context::applyTextures(SamplerType shaderType, Texture *textures[], Texture
             }
             else
             {
+                // Texture is not sampler complete or it is in use by the framebuffer.  Bind the incomplete texture.
                 Texture *incompleteTexture = getIncompleteTexture(textureType);
                 mRenderer->setTexture(shaderType, samplerIndex, incompleteTexture);
             }
         }
         else
         {
+            // No texture bound to this slot even though it is used by the shader, bind a NULL texture
             mRenderer->setTexture(shaderType, samplerIndex, NULL);
         }
     }
 
-    for (size_t samplerIndex = textureCount; samplerIndex < samplerCount; samplerIndex++)
+    // Set all the remaining textures to NULL
+    size_t samplerCount = (shaderType == SAMPLER_PIXEL) ? mCaps.maxTextureImageUnits
+                                                        : mCaps.maxVertexTextureImageUnits;
+    for (size_t samplerIndex = samplerRange; samplerIndex < samplerCount; samplerIndex++)
     {
         mRenderer->setTexture(shaderType, samplerIndex, NULL);
     }
 }
 
+void Context::applyTextures(ProgramBinary *programBinary)
+{
+    FramebufferTextureSerialArray framebufferSerials;
+    size_t framebufferSerialCount = getBoundFramebufferTextureSerials(&framebufferSerials);
+
+    applyTextures(programBinary, SAMPLER_VERTEX, framebufferSerials, framebufferSerialCount);
+    applyTextures(programBinary, SAMPLER_PIXEL, framebufferSerials, framebufferSerialCount);
+}
+
 bool Context::applyUniformBuffers()
 {
     Program *programObject = getProgram(mState.getCurrentProgramId());
@@ -1683,18 +1673,7 @@ void Context::drawArrays(GLenum mode, GLint first, GLsizei count, GLsizei instan
     ProgramBinary *programBinary = mState.getCurrentProgramBinary();
     programBinary->updateSamplerMapping();
 
-    Texture *vsTextures[IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS];
-    TextureType vsTextureTypes[IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS];
-    SamplerState vsSamplers[IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS];
-    size_t vsTextureCount = getCurrentTexturesAndSamplerStates(programBinary, SAMPLER_VERTEX, vsTextures, vsTextureTypes, vsSamplers);
-
-    Texture *psTextures[MAX_TEXTURE_IMAGE_UNITS];
-    TextureType psTextureTypes[MAX_TEXTURE_IMAGE_UNITS];
-    SamplerState psSamplers[MAX_TEXTURE_IMAGE_UNITS];
-    size_t psTextureCount = getCurrentTexturesAndSamplerStates(programBinary, SAMPLER_PIXEL, psTextures, psTextureTypes, psSamplers);
-
-    generateSwizzles(vsTextures, vsTextureCount);
-    generateSwizzles(psTextures, psTextureCount);
+    generateSwizzles(programBinary);
 
     if (!mRenderer->applyPrimitiveType(mode, count))
     {
@@ -1714,11 +1693,7 @@ void Context::drawArrays(GLenum mode, GLint first, GLsizei count, GLsizei instan
 
     applyShaders(programBinary, transformFeedbackActive);
 
-    FramebufferTextureSerialArray frameBufferSerials;
-    size_t framebufferSerialCount = getBoundFramebufferTextureSerials(&frameBufferSerials);
-
-    applyTextures(SAMPLER_VERTEX, vsTextures, vsTextureTypes, vsSamplers, vsTextureCount, frameBufferSerials, framebufferSerialCount);
-    applyTextures(SAMPLER_PIXEL, psTextures, psTextureTypes, psSamplers, psTextureCount, frameBufferSerials, framebufferSerialCount);
+    applyTextures(programBinary);
 
     if (!applyUniformBuffers())
     {
@@ -1745,18 +1720,7 @@ void Context::drawElements(GLenum mode, GLsizei count, GLenum type,
     ProgramBinary *programBinary = mState.getCurrentProgramBinary();
     programBinary->updateSamplerMapping();
 
-    Texture *vsTextures[IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS];
-    TextureType vsTextureTypes[IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS];
-    SamplerState vsSamplers[IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS];
-    size_t vsTextureCount = getCurrentTexturesAndSamplerStates(programBinary, SAMPLER_VERTEX, vsTextures, vsTextureTypes, vsSamplers);
-
-    Texture *psTextures[MAX_TEXTURE_IMAGE_UNITS];
-    TextureType psTextureTypes[MAX_TEXTURE_IMAGE_UNITS];
-    SamplerState psSamplers[MAX_TEXTURE_IMAGE_UNITS];
-    size_t psTextureCount = getCurrentTexturesAndSamplerStates(programBinary, SAMPLER_PIXEL, psTextures, psTextureTypes, psSamplers);
-
-    generateSwizzles(vsTextures, vsTextureCount);
-    generateSwizzles(psTextures, psTextureCount);
+    generateSwizzles(programBinary);
 
     if (!mRenderer->applyPrimitiveType(mode, count))
     {
@@ -1791,11 +1755,7 @@ void Context::drawElements(GLenum mode, GLsizei count, GLenum type,
 
     applyShaders(programBinary, transformFeedbackActive);
 
-    FramebufferTextureSerialArray frameBufferSerials;
-    size_t framebufferSerialCount = getBoundFramebufferTextureSerials(&frameBufferSerials);
-
-    applyTextures(SAMPLER_VERTEX, vsTextures, vsTextureTypes, vsSamplers, vsTextureCount, frameBufferSerials, framebufferSerialCount);
-    applyTextures(SAMPLER_PIXEL, psTextures, psTextureTypes, psSamplers, psTextureCount, frameBufferSerials, framebufferSerialCount);
+    applyTextures(programBinary);
 
     if (!applyUniformBuffers())
     {
@@ -1981,22 +1941,21 @@ void Context::detachSampler(GLuint sampler)
     mState.detachSampler(sampler);
 }
 
-Texture *Context::getIncompleteTexture(TextureType type)
+Texture *Context::getIncompleteTexture(GLenum type)
 {
-    Texture *t = mIncompleteTextures[type].get();
-
-    if (t == NULL)
+    if (mIncompleteTextures.find(type) == mIncompleteTextures.end())
     {
         const GLubyte color[] = { 0, 0, 0, 255 };
         const PixelUnpackState incompleteUnpackState(1);
 
+        Texture* t = NULL;
         switch (type)
         {
           default:
             UNREACHABLE();
             // default falls through to TEXTURE_2D
 
-          case TEXTURE_2D:
+          case GL_TEXTURE_2D:
             {
                 Texture2D *incomplete2d = new Texture2D(mRenderer->createTexture(GL_TEXTURE_2D), Texture::INCOMPLETE_TEXTURE_ID);
                 incomplete2d->setImage(0, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color);
@@ -2004,7 +1963,7 @@ Texture *Context::getIncompleteTexture(TextureType type)
             }
             break;
 
-          case TEXTURE_CUBE:
+          case GL_TEXTURE_CUBE_MAP:
             {
               TextureCubeMap *incompleteCube = new TextureCubeMap(mRenderer->createTexture(GL_TEXTURE_CUBE_MAP), Texture::INCOMPLETE_TEXTURE_ID);
 
@@ -2019,7 +1978,7 @@ Texture *Context::getIncompleteTexture(TextureType type)
             }
             break;
 
-          case TEXTURE_3D:
+          case GL_TEXTURE_3D:
             {
                 Texture3D *incomplete3d = new Texture3D(mRenderer->createTexture(GL_TEXTURE_3D), Texture::INCOMPLETE_TEXTURE_ID);
                 incomplete3d->setImage(0, 1, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color);
@@ -2028,7 +1987,7 @@ Texture *Context::getIncompleteTexture(TextureType type)
             }
             break;
 
-          case TEXTURE_2D_ARRAY:
+          case GL_TEXTURE_2D_ARRAY:
             {
                 Texture2DArray *incomplete2darray = new Texture2DArray(mRenderer->createTexture(GL_TEXTURE_2D_ARRAY), Texture::INCOMPLETE_TEXTURE_ID);
                 incomplete2darray->setImage(0, 1, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE, incompleteUnpackState, color);
@@ -2041,7 +2000,7 @@ Texture *Context::getIncompleteTexture(TextureType type)
         mIncompleteTextures[type].set(t);
     }
 
-    return t;
+    return mIncompleteTextures[type].get();
 }
 
 bool Context::skipDraw(GLenum drawMode)
@@ -2287,14 +2246,10 @@ void Context::initCaps(GLuint clientVersion)
 
     // Apply implementation limits
     mCaps.maxVertexAttributes = std::min<GLuint>(mCaps.maxVertexAttributes, MAX_VERTEX_ATTRIBS);
-    mCaps.maxVertexTextureImageUnits = std::min<GLuint>(mCaps.maxVertexTextureImageUnits, IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS);
     mCaps.maxVertexUniformBlocks = std::min<GLuint>(mCaps.maxVertexUniformBlocks, IMPLEMENTATION_MAX_VERTEX_SHADER_UNIFORM_BUFFERS);
     mCaps.maxVertexOutputComponents = std::min<GLuint>(mCaps.maxVertexOutputComponents, IMPLEMENTATION_MAX_VARYING_VECTORS * 4);
 
     mCaps.maxFragmentInputComponents = std::min<GLuint>(mCaps.maxFragmentInputComponents, IMPLEMENTATION_MAX_VARYING_VECTORS * 4);
-    mCaps.maxTextureImageUnits = std::min<GLuint>(mCaps.maxTextureImageUnits, MAX_TEXTURE_IMAGE_UNITS);
-
-    mCaps.maxCombinedTextureImageUnits = std::min<GLuint>(mCaps.maxCombinedTextureImageUnits, IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS);
 
     GLuint maxSamples = 0;
     mCaps.compressedTextureFormats.clear();
diff --git a/src/libGLESv2/Context.h b/src/libGLESv2/Context.h
index 5cf4746e..bf886a83 100644
--- a/src/libGLESv2/Context.h
+++ b/src/libGLESv2/Context.h
@@ -115,10 +115,7 @@ class Context
 
     void bindArrayBuffer(GLuint buffer);
     void bindElementArrayBuffer(GLuint buffer);
-    void bindTexture2D(GLuint texture);
-    void bindTextureCubeMap(GLuint texture);
-    void bindTexture3D(GLuint texture);
-    void bindTexture2DArray(GLuint texture);
+    void bindTexture(GLenum target, GLuint texture);
     void bindReadFramebuffer(GLuint framebuffer);
     void bindDrawFramebuffer(GLuint framebuffer);
     void bindRenderbuffer(GLuint renderbuffer);
@@ -170,7 +167,7 @@ class Context
     Texture3D *getTexture3D() const;
     Texture2DArray *getTexture2DArray() const;
 
-    Texture *getSamplerTexture(unsigned int sampler, TextureType type) const;
+    Texture *getSamplerTexture(unsigned int sampler, GLenum type) const;
 
     bool isSampler(GLuint samplerName) const;
 
@@ -237,9 +234,9 @@ class Context
     void applyRenderTarget(GLenum drawMode, bool ignoreViewport);
     void applyState(GLenum drawMode);
     void applyShaders(ProgramBinary *programBinary, bool transformFeedbackActive);
-    void applyTextures(SamplerType shaderType, Texture *textures[], TextureType *textureTypes, SamplerState *samplers,
-                       size_t textureCount, const FramebufferTextureSerialArray& framebufferSerials,
+    void applyTextures(ProgramBinary *programBinary, SamplerType shaderType, const FramebufferTextureSerialArray &framebufferSerials,
                        size_t framebufferSerialCount);
+    void applyTextures(ProgramBinary *programBinary);
     bool applyUniformBuffers();
     bool applyTransformFeedbackBuffers();
     void markTransformFeedbackUsage();
@@ -252,10 +249,10 @@ class Context
     void detachTransformFeedback(GLuint transformFeedback);
     void detachSampler(GLuint sampler);
 
-    void generateSwizzles(Texture *textures[], size_t count);
-    size_t getCurrentTexturesAndSamplerStates(ProgramBinary *programBinary, SamplerType type, Texture **outTextures,
-                                              TextureType *outTextureTypes, SamplerState *outSamplers);
-    Texture *getIncompleteTexture(TextureType type);
+    void generateSwizzles(ProgramBinary *programBinary, SamplerType type);
+    void generateSwizzles(ProgramBinary *programBinary);
+
+    Texture *getIncompleteTexture(GLenum type);
 
     bool skipDraw(GLenum drawMode);
 
@@ -276,10 +273,9 @@ class Context
 
     int mClientVersion;
 
-    BindingPointer<Texture2D> mTexture2DZero;
-    BindingPointer<TextureCubeMap> mTextureCubeMapZero;
-    BindingPointer<Texture3D> mTexture3DZero;
-    BindingPointer<Texture2DArray> mTexture2DArrayZero;
+    typedef std::map< GLenum, BindingPointer<Texture> > TextureMap;
+    TextureMap mZeroTextures;
+    TextureMap mIncompleteTextures;
 
     typedef std::unordered_map<GLuint, Framebuffer*> FramebufferMap;
     FramebufferMap mFramebufferMap;
@@ -306,8 +302,6 @@ class Context
     std::string mExtensionString;
     std::vector<std::string> mExtensionStrings;
 
-    BindingPointer<Texture> mIncompleteTextures[TEXTURE_TYPE_COUNT];
-
     // Recorded errors
     typedef std::set<GLenum> ErrorSet;
     ErrorSet mErrors;
diff --git a/src/libGLESv2/ProgramBinary.cpp b/src/libGLESv2/ProgramBinary.cpp
index 1cc55d25..405a73cc 100644
--- a/src/libGLESv2/ProgramBinary.cpp
+++ b/src/libGLESv2/ProgramBinary.cpp
@@ -37,7 +37,7 @@ namespace gl
 namespace
 {
 
-TextureType GetTextureType(GLenum samplerType)
+GLenum GetTextureType(GLenum samplerType)
 {
     switch (samplerType)
     {
@@ -45,26 +45,26 @@ TextureType GetTextureType(GLenum samplerType)
       case GL_INT_SAMPLER_2D:
       case GL_UNSIGNED_INT_SAMPLER_2D:
       case GL_SAMPLER_2D_SHADOW:
-        return TEXTURE_2D;
+        return GL_TEXTURE_2D;
       case GL_SAMPLER_3D:
       case GL_INT_SAMPLER_3D:
       case GL_UNSIGNED_INT_SAMPLER_3D:
-        return TEXTURE_3D;
+        return GL_TEXTURE_3D;
       case GL_SAMPLER_CUBE:
       case GL_SAMPLER_CUBE_SHADOW:
-        return TEXTURE_CUBE;
+        return GL_TEXTURE_CUBE_MAP;
       case GL_INT_SAMPLER_CUBE:
       case GL_UNSIGNED_INT_SAMPLER_CUBE:
-        return TEXTURE_CUBE;
+        return GL_TEXTURE_CUBE_MAP;
       case GL_SAMPLER_2D_ARRAY:
       case GL_INT_SAMPLER_2D_ARRAY:
       case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY:
       case GL_SAMPLER_2D_ARRAY_SHADOW:
-        return TEXTURE_2D_ARRAY;
+        return GL_TEXTURE_2D_ARRAY;
       default: UNREACHABLE();
     }
 
-    return TEXTURE_2D;
+    return GL_TEXTURE_2D;
 }
 
 unsigned int ParseAndStripArrayIndex(std::string* name)
@@ -207,16 +207,6 @@ ProgramBinary::ProgramBinary(rx::ProgramImpl *impl)
     {
         mSemanticIndex[index] = -1;
     }
-
-    for (int index = 0; index < MAX_TEXTURE_IMAGE_UNITS; index++)
-    {
-        mSamplersPS[index].active = false;
-    }
-
-    for (int index = 0; index < IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS; index++)
-    {
-        mSamplersVS[index].active = false;
-    }
 }
 
 ProgramBinary::~ProgramBinary()
@@ -380,8 +370,6 @@ bool ProgramBinary::usesGeometryShader() const
     return usesPointSpriteEmulation();
 }
 
-// Returns the index of the texture image unit (0-19) corresponding to a Direct3D 9 sampler
-// index (0-15 for the pixel shader and 0-3 for the vertex shader).
 GLint ProgramBinary::getSamplerMapping(SamplerType type, unsigned int samplerIndex, const Caps &caps)
 {
     GLint logicalTextureUnit = -1;
@@ -389,17 +377,15 @@ GLint ProgramBinary::getSamplerMapping(SamplerType type, unsigned int samplerInd
     switch (type)
     {
       case SAMPLER_PIXEL:
-        ASSERT(samplerIndex < ArraySize(mSamplersPS));
-
-        if (mSamplersPS[samplerIndex].active)
+        ASSERT(samplerIndex < caps.maxTextureImageUnits);
+        if (samplerIndex < mSamplersPS.size() && mSamplersPS[samplerIndex].active)
         {
             logicalTextureUnit = mSamplersPS[samplerIndex].logicalTextureUnit;
         }
         break;
       case SAMPLER_VERTEX:
-        ASSERT(samplerIndex < ArraySize(mSamplersVS));
-
-        if (mSamplersVS[samplerIndex].active)
+        ASSERT(samplerIndex < caps.maxVertexTextureImageUnits);
+        if (samplerIndex < mSamplersVS.size() && mSamplersVS[samplerIndex].active)
         {
             logicalTextureUnit = mSamplersVS[samplerIndex].logicalTextureUnit;
         }
@@ -417,22 +403,22 @@ GLint ProgramBinary::getSamplerMapping(SamplerType type, unsigned int samplerInd
 
 // Returns the texture type for a given Direct3D 9 sampler type and
 // index (0-15 for the pixel shader and 0-3 for the vertex shader).
-TextureType ProgramBinary::getSamplerTextureType(SamplerType type, unsigned int samplerIndex)
+GLenum ProgramBinary::getSamplerTextureType(SamplerType type, unsigned int samplerIndex)
 {
     switch (type)
     {
       case SAMPLER_PIXEL:
-        ASSERT(samplerIndex < ArraySize(mSamplersPS));
+        ASSERT(samplerIndex < mSamplersPS.size());
         ASSERT(mSamplersPS[samplerIndex].active);
         return mSamplersPS[samplerIndex].textureType;
       case SAMPLER_VERTEX:
-        ASSERT(samplerIndex < ArraySize(mSamplersVS));
+        ASSERT(samplerIndex < mSamplersVS.size());
         ASSERT(mSamplersVS[samplerIndex].active);
         return mSamplersVS[samplerIndex].textureType;
       default: UNREACHABLE();
     }
 
-    return TEXTURE_2D;
+    return GL_TEXTURE_2D;
 }
 
 GLint ProgramBinary::getUniformLocation(std::string name)
@@ -955,7 +941,7 @@ void ProgramBinary::updateSamplerMapping()
                     {
                         unsigned int samplerIndex = firstIndex + i;
 
-                        if (samplerIndex < MAX_TEXTURE_IMAGE_UNITS)
+                        if (samplerIndex < mSamplersPS.size())
                         {
                             ASSERT(mSamplersPS[samplerIndex].active);
                             mSamplersPS[samplerIndex].logicalTextureUnit = v[i][0];
@@ -971,7 +957,7 @@ void ProgramBinary::updateSamplerMapping()
                     {
                         unsigned int samplerIndex = firstIndex + i;
 
-                        if (samplerIndex < IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS)
+                        if (samplerIndex < mSamplersVS.size())
                         {
                             ASSERT(mSamplersVS[samplerIndex].active);
                             mSamplersVS[samplerIndex].logicalTextureUnit = v[i][0];
@@ -1142,18 +1128,23 @@ bool ProgramBinary::load(InfoLog &infoLog, GLenum binaryFormat, const void *bina
 
     initAttributesByLayout();
 
-    for (unsigned int i = 0; i < MAX_TEXTURE_IMAGE_UNITS; ++i)
+    const unsigned int psSamplerCount = stream.readInt<unsigned int>();
+    for (unsigned int i = 0; i < psSamplerCount; ++i)
     {
-        stream.readBool(&mSamplersPS[i].active);
-        stream.readInt(&mSamplersPS[i].logicalTextureUnit);
-        stream.readInt(&mSamplersPS[i].textureType);
+        Sampler sampler;
+        stream.readBool(&sampler.active);
+        stream.readInt(&sampler.logicalTextureUnit);
+        stream.readInt(&sampler.textureType);
+        mSamplersPS.push_back(sampler);
     }
-
-    for (unsigned int i = 0; i < IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS; ++i)
+    const unsigned int vsSamplerCount = stream.readInt<unsigned int>();
+    for (unsigned int i = 0; i < vsSamplerCount; ++i)
     {
-        stream.readBool(&mSamplersVS[i].active);
-        stream.readInt(&mSamplersVS[i].logicalTextureUnit);
-        stream.readInt(&mSamplersVS[i].textureType);
+        Sampler sampler;
+        stream.readBool(&sampler.active);
+        stream.readInt(&sampler.logicalTextureUnit);
+        stream.readInt(&sampler.textureType);
+        mSamplersVS.push_back(sampler);
     }
 
     stream.readInt(&mUsedVertexSamplerRange);
@@ -1383,14 +1374,16 @@ bool ProgramBinary::save(GLenum *binaryFormat, void *binary, GLsizei bufSize, GL
         stream.writeInt(mSemanticIndex[i]);
     }
 
-    for (unsigned int i = 0; i < MAX_TEXTURE_IMAGE_UNITS; ++i)
+    stream.writeInt(mSamplersPS.size());
+    for (unsigned int i = 0; i < mSamplersPS.size(); ++i)
     {
         stream.writeInt(mSamplersPS[i].active);
         stream.writeInt(mSamplersPS[i].logicalTextureUnit);
         stream.writeInt(mSamplersPS[i].textureType);
     }
 
-    for (unsigned int i = 0; i < IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS; ++i)
+    stream.writeInt(mSamplersVS.size());
+    for (unsigned int i = 0; i < mSamplersVS.size(); ++i)
     {
         stream.writeInt(mSamplersVS[i].active);
         stream.writeInt(mSamplersVS[i].logicalTextureUnit);
@@ -1591,6 +1584,9 @@ bool ProgramBinary::link(InfoLog &infoLog, const AttributeBindings &attributeBin
 
     reset();
 
+    mSamplersPS.resize(caps.maxTextureImageUnits);
+    mSamplersVS.resize(caps.maxVertexTextureImageUnits);
+
     mTransformFeedbackBufferMode = transformFeedbackBufferMode;
 
     rx::ShaderD3D *vertexShaderD3D = rx::ShaderD3D::makeShaderD3D(vertexShader->getImplementation());
@@ -1998,10 +1994,10 @@ bool ProgramBinary::indexSamplerUniform(const LinkedUniform &uniform, InfoLog &i
     if (uniform.vsRegisterIndex != GL_INVALID_INDEX)
     {
         if (!assignSamplers(uniform.vsRegisterIndex, uniform.type, uniform.arraySize, mSamplersVS,
-                            &mUsedVertexSamplerRange, caps.maxVertexTextureImageUnits))
+                            &mUsedVertexSamplerRange))
         {
             infoLog.append("Vertex shader sampler count exceeds the maximum vertex texture units (%d).",
-                           caps.maxVertexTextureImageUnits);
+                           mSamplersVS.size());
             return false;
         }
 
@@ -2017,10 +2013,10 @@ bool ProgramBinary::indexSamplerUniform(const LinkedUniform &uniform, InfoLog &i
     if (uniform.psRegisterIndex != GL_INVALID_INDEX)
     {
         if (!assignSamplers(uniform.psRegisterIndex, uniform.type, uniform.arraySize, mSamplersPS,
-                            &mUsedPixelSamplerRange, caps.maxTextureImageUnits))
+                            &mUsedPixelSamplerRange))
         {
             infoLog.append("Pixel shader sampler count exceeds MAX_TEXTURE_IMAGE_UNITS (%d).",
-                           caps.maxTextureImageUnits);
+                           mSamplersPS.size());
             return false;
         }
 
@@ -2062,20 +2058,20 @@ bool ProgramBinary::indexUniforms(InfoLog &infoLog, const Caps &caps)
 bool ProgramBinary::assignSamplers(unsigned int startSamplerIndex,
                                    GLenum samplerType,
                                    unsigned int samplerCount,
-                                   Sampler *outArray,
-                                   GLuint *usedRange,
-                                   unsigned int limit)
+                                   std::vector<Sampler> &outSamplers,
+                                   GLuint *outUsedRange)
 {
     unsigned int samplerIndex = startSamplerIndex;
 
     do
     {
-        if (samplerIndex < limit)
+        if (samplerIndex < outSamplers.size())
         {
-            outArray[samplerIndex].active = true;
-            outArray[samplerIndex].textureType = GetTextureType(samplerType);
-            outArray[samplerIndex].logicalTextureUnit = 0;
-            *usedRange = std::max(samplerIndex + 1, *usedRange);
+            Sampler& sampler = outSamplers[samplerIndex];
+            sampler.active = true;
+            sampler.textureType = GetTextureType(samplerType);
+            sampler.logicalTextureUnit = 0;
+            *outUsedRange = std::max(samplerIndex + 1, *outUsedRange);
         }
         else
         {
@@ -2668,13 +2664,7 @@ bool ProgramBinary::validateSamplers(InfoLog *infoLog, const Caps &caps)
     // DrawArrays and DrawElements will issue the INVALID_OPERATION error.
     updateSamplerMapping();
 
-    const unsigned int maxCombinedTextureImageUnits = caps.maxCombinedTextureImageUnits;
-    TextureType textureUnitType[IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS];
-
-    for (unsigned int i = 0; i < IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS; ++i)
-    {
-        textureUnitType[i] = TEXTURE_UNKNOWN;
-    }
+    std::vector<GLenum> textureUnitTypes(caps.maxCombinedTextureImageUnits, GL_NONE);
 
     for (unsigned int i = 0; i < mUsedPixelSamplerRange; ++i)
     {
@@ -2682,19 +2672,19 @@ bool ProgramBinary::validateSamplers(InfoLog *infoLog, const Caps &caps)
         {
             unsigned int unit = mSamplersPS[i].logicalTextureUnit;
 
-            if (unit >= maxCombinedTextureImageUnits)
+            if (unit >= textureUnitTypes.size())
             {
                 if (infoLog)
                 {
-                    infoLog->append("Sampler uniform (%d) exceeds IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS (%d)", unit, maxCombinedTextureImageUnits);
+                    infoLog->append("Sampler uniform (%d) exceeds GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS (%d)", unit, textureUnitTypes.size());
                 }
 
                 return false;
             }
 
-            if (textureUnitType[unit] != TEXTURE_UNKNOWN)
+            if (textureUnitTypes[unit] != GL_NONE)
             {
-                if (mSamplersPS[i].textureType != textureUnitType[unit])
+                if (mSamplersPS[i].textureType != textureUnitTypes[unit])
                 {
                     if (infoLog)
                     {
@@ -2706,7 +2696,7 @@ bool ProgramBinary::validateSamplers(InfoLog *infoLog, const Caps &caps)
             }
             else
             {
-                textureUnitType[unit] = mSamplersPS[i].textureType;
+                textureUnitTypes[unit] = mSamplersPS[i].textureType;
             }
         }
     }
@@ -2717,19 +2707,19 @@ bool ProgramBinary::validateSamplers(InfoLog *infoLog, const Caps &caps)
         {
             unsigned int unit = mSamplersVS[i].logicalTextureUnit;
 
-            if (unit >= maxCombinedTextureImageUnits)
+            if (unit >= textureUnitTypes.size())
             {
                 if (infoLog)
                 {
-                    infoLog->append("Sampler uniform (%d) exceeds IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS (%d)", unit, maxCombinedTextureImageUnits);
+                    infoLog->append("Sampler uniform (%d) exceeds GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS (%d)", unit, textureUnitTypes.size());
                 }
 
                 return false;
             }
 
-            if (textureUnitType[unit] != TEXTURE_UNKNOWN)
+            if (textureUnitTypes[unit] != GL_NONE)
             {
-                if (mSamplersVS[i].textureType != textureUnitType[unit])
+                if (mSamplersVS[i].textureType != textureUnitTypes[unit])
                 {
                     if (infoLog)
                     {
@@ -2741,7 +2731,7 @@ bool ProgramBinary::validateSamplers(InfoLog *infoLog, const Caps &caps)
             }
             else
             {
-                textureUnitType[unit] = mSamplersVS[i].textureType;
+                textureUnitTypes[unit] = mSamplersVS[i].textureType;
             }
         }
     }
@@ -2749,7 +2739,7 @@ bool ProgramBinary::validateSamplers(InfoLog *infoLog, const Caps &caps)
     return true;
 }
 
-ProgramBinary::Sampler::Sampler() : active(false), logicalTextureUnit(0), textureType(TEXTURE_2D)
+ProgramBinary::Sampler::Sampler() : active(false), logicalTextureUnit(0), textureType(GL_TEXTURE_2D)
 {
 }
 
@@ -2807,14 +2797,9 @@ void ProgramBinary::reset()
     mTransformFeedbackBufferMode = GL_NONE;
     mTransformFeedbackLinkedVaryings.clear();
 
-    for (size_t i = 0; i < ArraySize(mSamplersPS); i++)
-    {
-        mSamplersPS[i] = Sampler();
-    }
-    for (size_t i = 0; i < ArraySize(mSamplersVS); i++)
-    {
-        mSamplersVS[i] = Sampler();
-    }
+    mSamplersPS.clear();
+    mSamplersVS.clear();
+
     mUsedVertexSamplerRange = 0;
     mUsedPixelSamplerRange = 0;
     mUsesPointSize = false;
diff --git a/src/libGLESv2/ProgramBinary.h b/src/libGLESv2/ProgramBinary.h
index 2fe924bb..738d63f9 100644
--- a/src/libGLESv2/ProgramBinary.h
+++ b/src/libGLESv2/ProgramBinary.h
@@ -110,7 +110,7 @@ class ProgramBinary : public RefCountObject
     int getSemanticIndex(int attributeIndex);
 
     GLint getSamplerMapping(SamplerType type, unsigned int samplerIndex, const Caps &caps);
-    TextureType getSamplerTextureType(SamplerType type, unsigned int samplerIndex);
+    GLenum getSamplerTextureType(SamplerType type, unsigned int samplerIndex);
     GLint getUsedSamplerRange(SamplerType type);
     bool usesPointSize() const;
     bool usesPointSpriteEmulation() const;
@@ -205,7 +205,7 @@ class ProgramBinary : public RefCountObject
 
         bool active;
         GLint logicalTextureUnit;
-        TextureType textureType;
+        GLenum textureType;
     };
 
     void reset();
@@ -227,7 +227,7 @@ class ProgramBinary : public RefCountObject
     bool indexSamplerUniform(const LinkedUniform &uniform, InfoLog &infoLog, const Caps &caps);
     bool indexUniforms(InfoLog &infoLog, const Caps &caps);
     static bool assignSamplers(unsigned int startSamplerIndex, GLenum samplerType, unsigned int samplerCount,
-                               Sampler *outArray, GLuint *usedRange, unsigned int limit);
+                               std::vector<Sampler> &outSamplers, GLuint *outUsedRange);
     bool areMatchingInterfaceBlocks(InfoLog &infoLog, const sh::InterfaceBlock &vertexInterfaceBlock, const sh::InterfaceBlock &fragmentInterfaceBlock);
     bool linkUniformBlocks(InfoLog &infoLog, const Shader &vertexShader, const Shader &fragmentShader, const Caps &caps);
     bool gatherTransformFeedbackLinkedVaryings(InfoLog &infoLog, const std::vector<LinkedVarying> &linkedVaryings,
@@ -303,8 +303,8 @@ class ProgramBinary : public RefCountObject
     GLenum mTransformFeedbackBufferMode;
     std::vector<LinkedVarying> mTransformFeedbackLinkedVaryings;
 
-    Sampler mSamplersPS[MAX_TEXTURE_IMAGE_UNITS];
-    Sampler mSamplersVS[IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS];
+    std::vector<Sampler> mSamplersPS;
+    std::vector<Sampler> mSamplersVS;
     GLuint mUsedVertexSamplerRange;
     GLuint mUsedPixelSamplerRange;
     bool mUsesPointSize;
diff --git a/src/libGLESv2/ResourceManager.cpp b/src/libGLESv2/ResourceManager.cpp
index eccc1399..9121de17 100644
--- a/src/libGLESv2/ResourceManager.cpp
+++ b/src/libGLESv2/ResourceManager.cpp
@@ -366,25 +366,25 @@ void ResourceManager::checkBufferAllocation(unsigned int buffer)
     }
 }
 
-void ResourceManager::checkTextureAllocation(GLuint texture, TextureType type)
+void ResourceManager::checkTextureAllocation(GLuint texture, GLenum type)
 {
     if (!getTexture(texture) && texture != 0)
     {
         Texture *textureObject;
 
-        if (type == TEXTURE_2D)
+        if (type == GL_TEXTURE_2D)
         {
             textureObject = new Texture2D(mRenderer->createTexture(GL_TEXTURE_2D), texture);
         }
-        else if (type == TEXTURE_CUBE)
+        else if (type == GL_TEXTURE_CUBE_MAP)
         {
             textureObject = new TextureCubeMap(mRenderer->createTexture(GL_TEXTURE_CUBE_MAP), texture);
         }
-        else if (type == TEXTURE_3D)
+        else if (type == GL_TEXTURE_3D)
         {
             textureObject = new Texture3D(mRenderer->createTexture(GL_TEXTURE_3D), texture);
         }
-        else if (type == TEXTURE_2D_ARRAY)
+        else if (type == GL_TEXTURE_2D_ARRAY)
         {
             textureObject = new Texture2DArray(mRenderer->createTexture(GL_TEXTURE_2D_ARRAY), texture);
         }
diff --git a/src/libGLESv2/ResourceManager.h b/src/libGLESv2/ResourceManager.h
index 7ef90d29..7d53bd48 100644
--- a/src/libGLESv2/ResourceManager.h
+++ b/src/libGLESv2/ResourceManager.h
@@ -65,11 +65,11 @@ class ResourceManager
     Renderbuffer *getRenderbuffer(GLuint handle);
     Sampler *getSampler(GLuint handle);
     FenceSync *getFenceSync(GLuint handle);
-    
+
     void setRenderbuffer(GLuint handle, Renderbuffer *renderbuffer);
 
     void checkBufferAllocation(unsigned int buffer);
-    void checkTextureAllocation(GLuint texture, TextureType type);
+    void checkTextureAllocation(GLuint texture, GLenum type);
     void checkRenderbufferAllocation(GLuint renderbuffer);
     void checkSamplerAllocation(GLuint sampler);
 
diff --git a/src/libGLESv2/State.cpp b/src/libGLESv2/State.cpp
index 5497fa78..3c03b90e 100644
--- a/src/libGLESv2/State.cpp
+++ b/src/libGLESv2/State.cpp
@@ -9,6 +9,7 @@
 #include "libGLESv2/State.h"
 
 #include "libGLESv2/Context.h"
+#include "libGLESv2/Caps.h"
 #include "libGLESv2/VertexArray.h"
 #include "libGLESv2/Query.h"
 #include "libGLESv2/Framebuffer.h"
@@ -18,8 +19,18 @@
 
 namespace gl
 {
+
 State::State()
 {
+}
+
+State::~State()
+{
+    reset();
+}
+
+void State::initialize(const Caps& caps, GLuint clientVersion)
+{
     mContext = NULL;
 
     setClearColor(0.0f, 0.0f, 0.0f, 0.0f);
@@ -65,7 +76,7 @@ State::State()
     mDepthStencil.stencilMask = -1;
     mDepthStencil.stencilWritemask = -1;
     mDepthStencil.stencilBackFunc = GL_ALWAYS;
-    mDepthStencil.stencilBackMask = - 1;
+    mDepthStencil.stencilBackMask = -1;
     mDepthStencil.stencilBackWritemask = -1;
     mDepthStencil.stencilFail = GL_KEEP;
     mDepthStencil.stencilPassDepthFail = GL_KEEP;
@@ -97,18 +108,24 @@ State::State()
     mBlend.colorMaskBlue = true;
     mBlend.colorMaskAlpha = true;
 
+    mActiveSampler = 0;
+
     const GLfloat defaultFloatValues[] = { 0.0f, 0.0f, 0.0f, 1.0f };
     for (int attribIndex = 0; attribIndex < MAX_VERTEX_ATTRIBS; attribIndex++)
     {
         mVertexAttribCurrentValues[attribIndex].setFloatValues(defaultFloatValues);
     }
 
-    for (unsigned int textureUnit = 0; textureUnit < ArraySize(mSamplers); textureUnit++)
+    mSamplerTextures[GL_TEXTURE_2D].resize(caps.maxCombinedTextureImageUnits);
+    mSamplerTextures[GL_TEXTURE_CUBE_MAP].resize(caps.maxCombinedTextureImageUnits);
+    if (clientVersion >= 3)
     {
-        mSamplers[textureUnit].set(NULL);
+        // TODO: These could also be enabled via extension
+        mSamplerTextures[GL_TEXTURE_2D_ARRAY].resize(caps.maxCombinedTextureImageUnits);
+        mSamplerTextures[GL_TEXTURE_3D].resize(caps.maxCombinedTextureImageUnits);
     }
 
-    mActiveSampler = 0;
+    mSamplers.resize(caps.maxCombinedTextureImageUnits);
 
     mActiveQueries[GL_ANY_SAMPLES_PASSED].set(NULL);
     mActiveQueries[GL_ANY_SAMPLES_PASSED_CONSERVATIVE].set(NULL);
@@ -121,15 +138,20 @@ State::State()
     mDrawFramebuffer = NULL;
 }
 
-State::~State()
+void State::reset()
 {
-    for (int type = 0; type < TEXTURE_TYPE_COUNT; type++)
+    for (TextureBindingMap::iterator bindingVec = mSamplerTextures.begin(); bindingVec != mSamplerTextures.end(); bindingVec++)
     {
-        for (int sampler = 0; sampler < IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS; sampler++)
+        TextureBindingVector &textureVector = bindingVec->second;
+        for (size_t textureIdx = 0; textureIdx < textureVector.size(); textureIdx++)
         {
-            mSamplerTexture[type][sampler].set(NULL);
+            textureVector[textureIdx].set(NULL);
         }
     }
+    for (size_t samplerIdx = 0; samplerIdx < mSamplers.size(); samplerIdx++)
+    {
+        mSamplers[samplerIdx].set(NULL);
+    }
 
     const GLfloat defaultFloatValues[] = { 0.0f, 0.0f, 0.0f, 1.0f };
     for (int attribIndex = 0; attribIndex < MAX_VERTEX_ATTRIBS; attribIndex++)
@@ -583,26 +605,26 @@ unsigned int State::getActiveSampler() const
     return mActiveSampler;
 }
 
-void State::setSamplerTexture(TextureType type, Texture *texture)
+void State::setSamplerTexture(GLenum type, Texture *texture)
 {
-    mSamplerTexture[type][mActiveSampler].set(texture);
+    mSamplerTextures[type][mActiveSampler].set(texture);
 }
 
-Texture *State::getSamplerTexture(unsigned int sampler, TextureType type) const
+Texture *State::getSamplerTexture(unsigned int sampler, GLenum type) const
 {
-    GLuint texid = mSamplerTexture[type][sampler].id();
+    const BindingPointer<Texture>& binding = mSamplerTextures.at(type)[sampler];
 
-    if (texid == 0)   // Special case: 0 refers to default textures held by Context
+    if (binding.id() == 0)   // Special case: 0 refers to default textures held by Context
     {
         return NULL;
     }
 
-    return mSamplerTexture[type][sampler].get();
+    return binding.get();
 }
 
-GLuint State::getSamplerTextureId(unsigned int sampler, TextureType type) const
+GLuint State::getSamplerTextureId(unsigned int sampler, GLenum type) const
 {
-    return mSamplerTexture[type][sampler].id();
+    return mSamplerTextures.at(type)[sampler].id();
 }
 
 void State::detachTexture(GLuint texture)
@@ -616,13 +638,15 @@ void State::detachTexture(GLuint texture)
     // If a texture object is deleted, it is as if all texture units which are bound to that texture object are
     // rebound to texture object zero
 
-    for (int type = 0; type < TEXTURE_TYPE_COUNT; type++)
+    for (TextureBindingMap::iterator bindingVec = mSamplerTextures.begin(); bindingVec != mSamplerTextures.end(); bindingVec++)
     {
-        for (int sampler = 0; sampler < IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS; sampler++)
+        TextureBindingVector &textureVector = bindingVec->second;
+        for (size_t textureIdx = 0; textureIdx < textureVector.size(); textureIdx++)
         {
-            if (mSamplerTexture[type][sampler].id() == texture)
+            BindingPointer<Texture> &binding = textureVector[textureIdx];
+            if (binding.id() == texture)
             {
-                mSamplerTexture[type][sampler].set(NULL);
+                binding.set(NULL);
             }
         }
     }
@@ -650,7 +674,7 @@ void State::setSamplerBinding(GLuint textureUnit, Sampler *sampler)
 
 GLuint State::getSamplerId(GLuint textureUnit) const
 {
-    ASSERT(textureUnit < ArraySize(mSamplers));
+    ASSERT(textureUnit < mSamplers.size());
     return mSamplers[textureUnit].id();
 }
 
@@ -665,11 +689,12 @@ void State::detachSampler(GLuint sampler)
     // If a sampler object that is currently bound to one or more texture units is
     // deleted, it is as though BindSampler is called once for each texture unit to
     // which the sampler is bound, with unit set to the texture unit and sampler set to zero.
-    for (unsigned int textureUnit = 0; textureUnit < ArraySize(mSamplers); textureUnit++)
+    for (size_t textureUnit = 0; textureUnit < mSamplers.size(); textureUnit++)
     {
-        if (mSamplers[textureUnit].id() == sampler)
+        BindingPointer<Sampler> &samplerBinding = mSamplers[textureUnit];
+        if (samplerBinding.id() == sampler)
         {
-            mSamplers[textureUnit].set(NULL);
+            samplerBinding.set(NULL);
         }
     }
 }
@@ -1308,19 +1333,19 @@ void State::getIntegerv(GLenum pname, GLint *params)
         break;
       case GL_TEXTURE_BINDING_2D:
         ASSERT(mActiveSampler < mContext->getCaps().maxCombinedTextureImageUnits);
-        *params = mSamplerTexture[TEXTURE_2D][mActiveSampler].id();
+        *params = mSamplerTextures.at(GL_TEXTURE_2D)[mActiveSampler].id();
         break;
       case GL_TEXTURE_BINDING_CUBE_MAP:
         ASSERT(mActiveSampler < mContext->getCaps().maxCombinedTextureImageUnits);
-        *params = mSamplerTexture[TEXTURE_CUBE][mActiveSampler].id();
+        *params = mSamplerTextures.at(GL_TEXTURE_CUBE_MAP)[mActiveSampler].id();
         break;
       case GL_TEXTURE_BINDING_3D:
         ASSERT(mActiveSampler <mContext->getCaps().maxCombinedTextureImageUnits);
-        *params = mSamplerTexture[TEXTURE_3D][mActiveSampler].id();
+        *params = mSamplerTextures.at(GL_TEXTURE_3D)[mActiveSampler].id();
         break;
       case GL_TEXTURE_BINDING_2D_ARRAY:
         ASSERT(mActiveSampler < mContext->getCaps().maxCombinedTextureImageUnits);
-        *params = mSamplerTexture[TEXTURE_2D_ARRAY][mActiveSampler].id();
+        *params = mSamplerTextures.at(GL_TEXTURE_2D_ARRAY)[mActiveSampler].id();
         break;
       case GL_UNIFORM_BUFFER_BINDING:
         *params = mGenericUniformBuffer.id();
diff --git a/src/libGLESv2/State.h b/src/libGLESv2/State.h
index d3b3edc5..5f043313 100644
--- a/src/libGLESv2/State.h
+++ b/src/libGLESv2/State.h
@@ -24,6 +24,7 @@ namespace gl
 class Query;
 class VertexArray;
 class Context;
+struct Caps;
 
 class State
 {
@@ -31,6 +32,9 @@ class State
     State();
     ~State();
 
+    void initialize(const Caps& caps, GLuint clientVersion);
+    void reset();
+
     void setContext(Context *context) { mContext = context; }
 
     // State chunk getters
@@ -126,9 +130,9 @@ class State
     // Texture binding & active texture unit manipulation
     void setActiveSampler(unsigned int active);
     unsigned int getActiveSampler() const;
-    void setSamplerTexture(TextureType type, Texture *texture);
-    Texture *getSamplerTexture(unsigned int sampler, TextureType type) const;
-    GLuint getSamplerTextureId(unsigned int sampler, TextureType type) const;
+    void setSamplerTexture(GLenum type, Texture *texture);
+    Texture *getSamplerTexture(unsigned int sampler, GLenum type) const;
+    GLuint getSamplerTextureId(unsigned int sampler, GLenum type) const;
     void detachTexture(GLuint texture);
 
     // Sampler object binding manipulation
@@ -272,7 +276,6 @@ class State
     float mNearZ;
     float mFarZ;
 
-    unsigned int mActiveSampler;   // Active texture unit selector - GL_TEXTURE0
     BindingPointer<Buffer> mArrayBuffer;
     Framebuffer *mReadFramebuffer;
     Framebuffer *mDrawFramebuffer;
@@ -283,8 +286,15 @@ class State
     VertexAttribCurrentValueData mVertexAttribCurrentValues[MAX_VERTEX_ATTRIBS]; // From glVertexAttrib
     VertexArray *mVertexArray;
 
-    BindingPointer<Texture> mSamplerTexture[TEXTURE_TYPE_COUNT][IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS];
-    BindingPointer<Sampler> mSamplers[IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS];
+    // Texture and sampler bindings
+    size_t mActiveSampler;   // Active texture unit selector - GL_TEXTURE0
+
+    typedef std::vector< BindingPointer<Texture> > TextureBindingVector;
+    typedef std::map<GLenum, TextureBindingVector> TextureBindingMap;
+    TextureBindingMap mSamplerTextures;
+
+    typedef std::vector< BindingPointer<Sampler> > SamplerBindingVector;
+    SamplerBindingVector mSamplers;
 
     typedef std::map< GLenum, BindingPointer<Query> > ActiveQueryMap;
     ActiveQueryMap mActiveQueries;
diff --git a/src/libGLESv2/angletypes.h b/src/libGLESv2/angletypes.h
index 79ad810e..922053e9 100644
--- a/src/libGLESv2/angletypes.h
+++ b/src/libGLESv2/angletypes.h
@@ -19,17 +19,6 @@ class ProgramBinary;
 struct VertexAttribute;
 struct VertexAttribCurrentValueData;
 
-enum TextureType
-{
-    TEXTURE_2D,
-    TEXTURE_CUBE,
-    TEXTURE_3D,
-    TEXTURE_2D_ARRAY,
-
-    TEXTURE_TYPE_COUNT,
-    TEXTURE_UNKNOWN
-};
-
 enum SamplerType
 {
     SAMPLER_PIXEL,
diff --git a/src/libGLESv2/constants.h b/src/libGLESv2/constants.h
index c87f92d4..69c4823f 100644
--- a/src/libGLESv2/constants.h
+++ b/src/libGLESv2/constants.h
@@ -15,12 +15,8 @@ namespace gl
 enum
 {
     MAX_VERTEX_ATTRIBS = 16,
-    MAX_TEXTURE_IMAGE_UNITS = 16,
 
     // Implementation upper limits, real maximums depend on the hardware
-    IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS = 16,
-    IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS = MAX_TEXTURE_IMAGE_UNITS + IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS,    
-
     IMPLEMENTATION_MAX_VARYING_VECTORS = 32,
     IMPLEMENTATION_MAX_DRAW_BUFFERS = 8,
     IMPLEMENTATION_MAX_FRAMEBUFFER_ATTACHMENTS = IMPLEMENTATION_MAX_DRAW_BUFFERS + 2, // 2 extra for depth and/or stencil buffers
diff --git a/src/libGLESv2/libGLESv2.cpp b/src/libGLESv2/libGLESv2.cpp
index 821226bf..a62e163f 100644
--- a/src/libGLESv2/libGLESv2.cpp
+++ b/src/libGLESv2/libGLESv2.cpp
@@ -265,35 +265,24 @@ void __stdcall glBindTexture(GLenum target, GLuint texture)
         switch (target)
         {
           case GL_TEXTURE_2D:
-            context->bindTexture2D(texture);
-            return;
-
           case GL_TEXTURE_CUBE_MAP:
-            context->bindTextureCubeMap(texture);
-            return;
+            break;
 
           case GL_TEXTURE_3D:
-            if (context->getClientVersion() < 3)
-            {
-                context->recordError(gl::Error(GL_INVALID_ENUM));
-                return;
-            }
-            context->bindTexture3D(texture);
-            return;
-
           case GL_TEXTURE_2D_ARRAY:
             if (context->getClientVersion() < 3)
             {
                 context->recordError(gl::Error(GL_INVALID_ENUM));
                 return;
             }
-            context->bindTexture2DArray(texture);
-            return;
+            break;
 
           default:
             context->recordError(gl::Error(GL_INVALID_ENUM));
             return;
         }
+
+        context->bindTexture(target, texture);
     }
 }
 
diff --git a/src/libGLESv2/renderer/d3d/d3d11/Renderer11.cpp b/src/libGLESv2/renderer/d3d/d3d11/Renderer11.cpp
index d7cadf6c..b12a6540 100644
--- a/src/libGLESv2/renderer/d3d/d3d11/Renderer11.cpp
+++ b/src/libGLESv2/renderer/d3d/d3d11/Renderer11.cpp
@@ -315,6 +315,17 @@ void Renderer11::initializeDevice()
     ASSERT(!mPixelTransfer);
     mPixelTransfer = new PixelTransfer11(this);
 
+    const gl::Caps &rendererCaps = getRendererCaps();
+
+    mForceSetVertexSamplerStates.resize(rendererCaps.maxVertexTextureImageUnits);
+    mCurVertexSamplerStates.resize(rendererCaps.maxVertexTextureImageUnits);
+
+    mForceSetPixelSamplerStates.resize(rendererCaps.maxTextureImageUnits);
+    mCurPixelSamplerStates.resize(rendererCaps.maxTextureImageUnits);
+
+    mCurVertexSRVs.resize(rendererCaps.maxVertexTextureImageUnits);
+    mCurPixelSRVs.resize(rendererCaps.maxTextureImageUnits);
+
     markAllStateDirty();
 }
 
@@ -324,7 +335,7 @@ int Renderer11::generateConfigs(ConfigDesc **configDescList)
     unsigned int numDepthFormats = ArraySize(DepthStencilFormats);
     (*configDescList) = new ConfigDesc[numRenderFormats * numDepthFormats];
     int numConfigs = 0;
-    
+
     for (unsigned int formatIndex = 0; formatIndex < numRenderFormats; formatIndex++)
     {
         const d3d11::DXGIFormat &renderTargetFormatInfo = d3d11::GetDXGIFormatInfo(RenderTargetFormats[formatIndex]);
@@ -1556,12 +1567,15 @@ void Renderer11::markAllStateDirty()
     mDepthStencilInitialized = false;
     mRenderTargetDescInitialized = false;
 
-    for (int i = 0; i < gl::IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS; i++)
+    ASSERT(mForceSetVertexSamplerStates.size() == mCurVertexSRVs.size());
+    for (int i = 0; i < mForceSetVertexSamplerStates.size(); i++)
     {
         mForceSetVertexSamplerStates[i] = true;
         mCurVertexSRVs[i] = NULL;
     }
-    for (int i = 0; i < gl::MAX_TEXTURE_IMAGE_UNITS; i++)
+
+    ASSERT(mForceSetPixelSamplerStates.size() == mCurPixelSRVs.size());
+    for (int i = 0; i < mForceSetPixelSamplerStates.size(); i++)
     {
         mForceSetPixelSamplerStates[i] = true;
         mCurPixelSRVs[i] = NULL;
diff --git a/src/libGLESv2/renderer/d3d/d3d11/Renderer11.h b/src/libGLESv2/renderer/d3d/d3d11/Renderer11.h
index 2d9e3034..4a794d27 100644
--- a/src/libGLESv2/renderer/d3d/d3d11/Renderer11.h
+++ b/src/libGLESv2/renderer/d3d/d3d11/Renderer11.h
@@ -245,15 +245,15 @@ class Renderer11 : public Renderer
     rx::RenderTarget::Desc mRenderTargetDesc;
 
     // Currently applied sampler states
-    bool mForceSetVertexSamplerStates[gl::IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS];
-    gl::SamplerState mCurVertexSamplerStates[gl::IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS];
+    std::vector<bool> mForceSetVertexSamplerStates;
+    std::vector<gl::SamplerState> mCurVertexSamplerStates;
 
-    bool mForceSetPixelSamplerStates[gl::MAX_TEXTURE_IMAGE_UNITS];
-    gl::SamplerState mCurPixelSamplerStates[gl::MAX_TEXTURE_IMAGE_UNITS];
+    std::vector<bool> mForceSetPixelSamplerStates;
+    std::vector<gl::SamplerState> mCurPixelSamplerStates;
 
     // Currently applied textures
-    ID3D11ShaderResourceView *mCurVertexSRVs[gl::IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS];
-    ID3D11ShaderResourceView *mCurPixelSRVs[gl::MAX_TEXTURE_IMAGE_UNITS];
+    std::vector<ID3D11ShaderResourceView*> mCurVertexSRVs;
+    std::vector<ID3D11ShaderResourceView*> mCurPixelSRVs;
 
     // Currently applied blend state
     bool mForceSetBlendState;
diff --git a/src/libGLESv2/renderer/d3d/d3d11/renderer11_utils.cpp b/src/libGLESv2/renderer/d3d/d3d11/renderer11_utils.cpp
index 39bec903..b1867fba 100644
--- a/src/libGLESv2/renderer/d3d/d3d11/renderer11_utils.cpp
+++ b/src/libGLESv2/renderer/d3d/d3d11/renderer11_utils.cpp
@@ -944,7 +944,7 @@ void GenerateCaps(ID3D11Device *device, gl::Caps *caps, gl::TextureCapsMap *text
                                                  static_cast<GLint64>(caps->maxFragmentUniformComponents);
     caps->maxVaryingComponents = GetMaximumVertexOutputVectors(featureLevel) * 4;
     caps->maxVaryingVectors = GetMaximumVertexOutputVectors(featureLevel);
-    caps->maxCombinedTextureImageUnits = caps->maxVertexTextureImageUnits + caps->maxFragmentInputComponents;
+    caps->maxCombinedTextureImageUnits = caps->maxVertexTextureImageUnits + caps->maxTextureImageUnits;
 
     // Transform feedback limits
     caps->maxTransformFeedbackInterleavedComponents = GetMaximumStreamOutputInterleavedComponenets(featureLevel);
diff --git a/src/libGLESv2/renderer/d3d/d3d9/Renderer9.cpp b/src/libGLESv2/renderer/d3d/d3d9/Renderer9.cpp
index e82971db..deea35b5 100644
--- a/src/libGLESv2/renderer/d3d/d3d9/Renderer9.cpp
+++ b/src/libGLESv2/renderer/d3d/d3d9/Renderer9.cpp
@@ -379,6 +379,17 @@ void Renderer9::initializeDevice()
         mDevice->SetRenderState(D3DRS_POINTSIZE_MAX, 0x3F800000);   // 1.0f
     }
 
+    const gl::Caps &rendererCaps = getRendererCaps();
+
+    mForceSetVertexSamplerStates.resize(rendererCaps.maxVertexTextureImageUnits);
+    mCurVertexSamplerStates.resize(rendererCaps.maxVertexTextureImageUnits);
+
+    mForceSetPixelSamplerStates.resize(rendererCaps.maxTextureImageUnits);
+    mCurPixelSamplerStates.resize(rendererCaps.maxTextureImageUnits);
+
+    mCurVertexTextureSerials.resize(rendererCaps.maxVertexTextureImageUnits);
+    mCurPixelTextureSerials.resize(rendererCaps.maxTextureImageUnits);
+
     markAllStateDirty();
 
     mSceneStarted = false;
@@ -633,8 +644,8 @@ void Renderer9::generateSwizzle(gl::Texture *texture)
 
 void Renderer9::setSamplerState(gl::SamplerType type, int index, const gl::SamplerState &samplerState)
 {
-    bool *forceSetSamplers = (type == gl::SAMPLER_PIXEL) ? mForceSetPixelSamplerStates : mForceSetVertexSamplerStates;
-    gl::SamplerState *appliedSamplers = (type == gl::SAMPLER_PIXEL) ? mCurPixelSamplerStates: mCurVertexSamplerStates;
+    std::vector<bool> &forceSetSamplers = (type == gl::SAMPLER_PIXEL) ? mForceSetPixelSamplerStates : mForceSetVertexSamplerStates;
+    std::vector<gl::SamplerState> &appliedSamplers = (type == gl::SAMPLER_PIXEL) ? mCurPixelSamplerStates: mCurVertexSamplerStates;
 
     if (forceSetSamplers[index] || memcmp(&samplerState, &appliedSamplers[index], sizeof(gl::SamplerState)) != 0)
     {
@@ -668,7 +679,7 @@ void Renderer9::setTexture(gl::SamplerType type, int index, gl::Texture *texture
     unsigned int serial = 0;
     bool forceSetTexture = false;
 
-    unsigned int *appliedSerials = (type == gl::SAMPLER_PIXEL) ? mCurPixelTextureSerials : mCurVertexTextureSerials;
+    std::vector<unsigned int> &appliedSerials = (type == gl::SAMPLER_PIXEL) ? mCurPixelTextureSerials : mCurVertexTextureSerials;
 
     if (texture)
     {
@@ -2022,12 +2033,15 @@ void Renderer9::markAllStateDirty()
     mForceSetViewport = true;
     mForceSetBlendState = true;
 
-    for (unsigned int i = 0; i < gl::IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS; i++)
+    ASSERT(mForceSetVertexSamplerStates.size() == mCurVertexTextureSerials.size());
+    for (unsigned int i = 0; i < mForceSetVertexSamplerStates.size(); i++)
     {
         mForceSetVertexSamplerStates[i] = true;
         mCurVertexTextureSerials[i] = 0;
     }
-    for (unsigned int i = 0; i < gl::MAX_TEXTURE_IMAGE_UNITS; i++)
+
+    ASSERT(mForceSetPixelSamplerStates.size() == mCurPixelTextureSerials.size());
+    for (unsigned int i = 0; i < mForceSetPixelSamplerStates.size(); i++)
     {
         mForceSetPixelSamplerStates[i] = true;
         mCurPixelTextureSerials[i] = 0;
@@ -3082,12 +3096,9 @@ TextureImpl *Renderer9::createTexture(GLenum target)
 {
     switch(target)
     {
-      case GL_TEXTURE_2D: return new TextureD3D_2D(this);
+      case GL_TEXTURE_2D:       return new TextureD3D_2D(this);
       case GL_TEXTURE_CUBE_MAP: return new TextureD3D_Cube(this);
-      case GL_TEXTURE_3D: return new TextureD3D_3D(this);
-      case GL_TEXTURE_2D_ARRAY: return new TextureD3D_2DArray(this);
-      default:
-        UNREACHABLE();
+      default:                  UNREACHABLE();
     }
 
     return NULL;
diff --git a/src/libGLESv2/renderer/d3d/d3d9/Renderer9.h b/src/libGLESv2/renderer/d3d/d3d9/Renderer9.h
index e7dab81a..c7c3dde3 100644
--- a/src/libGLESv2/renderer/d3d/d3d9/Renderer9.h
+++ b/src/libGLESv2/renderer/d3d/d3d9/Renderer9.h
@@ -295,15 +295,15 @@ class Renderer9 : public Renderer
     GLuint mCurSampleMask;
 
     // Currently applied sampler states
-    bool mForceSetVertexSamplerStates[gl::IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS];
-    gl::SamplerState mCurVertexSamplerStates[gl::IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS];
+    std::vector<bool> mForceSetVertexSamplerStates;
+    std::vector<gl::SamplerState> mCurVertexSamplerStates;
 
-    bool mForceSetPixelSamplerStates[gl::MAX_TEXTURE_IMAGE_UNITS];
-    gl::SamplerState mCurPixelSamplerStates[gl::MAX_TEXTURE_IMAGE_UNITS];
+    std::vector<bool> mForceSetPixelSamplerStates;
+    std::vector<gl::SamplerState> mCurPixelSamplerStates;
 
     // Currently applied textures
-    unsigned int mCurVertexTextureSerials[gl::IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS];
-    unsigned int mCurPixelTextureSerials[gl::MAX_TEXTURE_IMAGE_UNITS];
+    std::vector<unsigned int> mCurVertexTextureSerials;
+    std::vector<unsigned int> mCurPixelTextureSerials;
 
     unsigned int mAppliedIBSerial;
     IDirect3DVertexShader9 *mAppliedVertexShader;
diff --git a/src/libGLESv2/renderer/d3d/d3d9/renderer9_utils.cpp b/src/libGLESv2/renderer/d3d/d3d9/renderer9_utils.cpp
index 879a6427..d6f950a5 100644
--- a/src/libGLESv2/renderer/d3d/d3d9/renderer9_utils.cpp
+++ b/src/libGLESv2/renderer/d3d/d3d9/renderer9_utils.cpp
@@ -436,7 +436,7 @@ void GenerateCaps(IDirect3D9 *d3d9, IDirect3DDevice9 *device, D3DDEVTYPE deviceT
 
     // Aggregate shader limits
     caps->maxVaryingVectors = caps->maxVertexOutputComponents / 4;
-    caps->maxCombinedTextureImageUnits = caps->maxVertexTextureImageUnits + caps->maxFragmentInputComponents;
+    caps->maxCombinedTextureImageUnits = caps->maxVertexTextureImageUnits + caps->maxTextureImageUnits;
 
     // Transform feedback limits
     caps->maxTransformFeedbackInterleavedComponents = 0;