Adding support to trunk for building Skia using the Android NDK.

This CL depends on a subsequent CL to add the appropriate NDK
toolchain and system sources to the skia repo.

Review URL: http://codereview.appspot.com/5306089/
Review URL: http://codereview.appspot.com/5306089

git-svn-id: http://skia.googlecode.com/svn/trunk@2592 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/android/GrGLCreateNativeInterface_android.cpp b/src/gpu/android/GrGLCreateNativeInterface_android.cpp
new file mode 100644
index 0000000..2bb1ce3
--- /dev/null
+++ b/src/gpu/android/GrGLCreateNativeInterface_android.cpp
@@ -0,0 +1,120 @@
+// Modified from chromium/src/webkit/glue/gl_bindings_skia_cmd_buffer.cc
+
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "GrGLInterface.h"
+
+#ifndef GL_GLEXT_PROTOTYPES
+#define GL_GLEXT_PROTOTYPES
+#endif
+
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+const GrGLInterface* GrGLCreateNativeInterface() {
+    static SkAutoTUnref<GrGLInterface> glInterface;
+    if (!glInterface.get()) {
+        GrGLInterface* interface = new GrGLInterface;
+        glInterface.reset(interface);
+        interface->fBindingsExported = kES2_GrGLBinding;
+        interface->fActiveTexture = glActiveTexture;
+        interface->fAttachShader = glAttachShader;
+        interface->fBindAttribLocation = glBindAttribLocation;
+        interface->fBindBuffer = glBindBuffer;
+        interface->fBindTexture = glBindTexture;
+        interface->fBlendColor = glBlendColor;
+        interface->fBlendFunc = glBlendFunc;
+        interface->fBufferData = glBufferData;
+        interface->fBufferSubData = glBufferSubData;
+        interface->fClear = glClear;
+        interface->fClearColor = glClearColor;
+        interface->fClearStencil = glClearStencil;
+        interface->fColorMask = glColorMask;
+        interface->fCompileShader = glCompileShader;
+        interface->fCompressedTexImage2D = glCompressedTexImage2D;
+        interface->fCreateProgram = glCreateProgram;
+        interface->fCreateShader = glCreateShader;
+        interface->fCullFace = glCullFace;
+        interface->fDeleteBuffers = glDeleteBuffers;
+        interface->fDeleteProgram = glDeleteProgram;
+        interface->fDeleteShader = glDeleteShader;
+        interface->fDeleteTextures = glDeleteTextures;
+        interface->fDepthMask = glDepthMask;
+        interface->fDisable = glDisable;
+        interface->fDisableVertexAttribArray = glDisableVertexAttribArray;
+        interface->fDrawArrays = glDrawArrays;
+        interface->fDrawElements = glDrawElements;
+        interface->fEnable = glEnable;
+        interface->fEnableVertexAttribArray = glEnableVertexAttribArray;
+        interface->fFrontFace = glFrontFace;
+        interface->fGenBuffers = glGenBuffers;
+        interface->fGenTextures = glGenTextures;
+        interface->fGetBufferParameteriv = glGetBufferParameteriv;
+        interface->fGetError = glGetError;
+        interface->fGetIntegerv = glGetIntegerv;
+        interface->fGetProgramInfoLog = glGetProgramInfoLog;
+        interface->fGetProgramiv = glGetProgramiv;
+        interface->fGetShaderInfoLog = glGetShaderInfoLog;
+        interface->fGetShaderiv = glGetShaderiv;
+        interface->fGetString = glGetString;
+        interface->fGetUniformLocation = glGetUniformLocation;
+        interface->fLineWidth = glLineWidth;
+        interface->fLinkProgram = glLinkProgram;
+        interface->fPixelStorei = glPixelStorei;
+        interface->fReadPixels = glReadPixels;
+        interface->fScissor = glScissor;
+        interface->fShaderSource = glShaderSource;
+        interface->fStencilFunc = glStencilFunc;
+        interface->fStencilFuncSeparate = glStencilFuncSeparate;
+        interface->fStencilMask = glStencilMask;
+        interface->fStencilMaskSeparate = glStencilMaskSeparate;
+        interface->fStencilOp = glStencilOp;
+        interface->fStencilOpSeparate = glStencilOpSeparate;
+        interface->fTexImage2D = glTexImage2D;
+        interface->fTexParameteri = glTexParameteri;
+        interface->fTexSubImage2D = glTexSubImage2D;
+        interface->fUniform1f = glUniform1f;
+        interface->fUniform1i = glUniform1i;
+        interface->fUniform1fv = glUniform1fv;
+        interface->fUniform1iv = glUniform1iv;
+        interface->fUniform2f = glUniform2f;
+        interface->fUniform2i = glUniform2i;
+        interface->fUniform2fv = glUniform2fv;
+        interface->fUniform2iv = glUniform2iv;
+        interface->fUniform3f = glUniform3f;
+        interface->fUniform3i = glUniform3i;
+        interface->fUniform3fv = glUniform3fv;
+        interface->fUniform3iv = glUniform3iv;
+        interface->fUniform4f = glUniform4f;
+        interface->fUniform4i = glUniform4i;
+        interface->fUniform4fv = glUniform4fv;
+        interface->fUniform4iv = glUniform4iv;
+        interface->fUniformMatrix2fv = glUniformMatrix2fv;
+        interface->fUniformMatrix3fv = glUniformMatrix3fv;
+        interface->fUniformMatrix4fv = glUniformMatrix4fv;
+        interface->fUseProgram = glUseProgram;
+        interface->fVertexAttrib4fv = glVertexAttrib4fv;
+        interface->fVertexAttribPointer = glVertexAttribPointer;
+        interface->fViewport = glViewport;
+        interface->fBindFramebuffer = glBindFramebuffer;
+        interface->fBindRenderbuffer = glBindRenderbuffer;
+        interface->fCheckFramebufferStatus = glCheckFramebufferStatus;
+        interface->fDeleteFramebuffers = glDeleteFramebuffers;
+        interface->fDeleteRenderbuffers = glDeleteRenderbuffers;
+        interface->fFramebufferRenderbuffer = glFramebufferRenderbuffer;
+        interface->fFramebufferTexture2D = glFramebufferTexture2D;
+        interface->fGenFramebuffers = glGenFramebuffers;
+        interface->fGenRenderbuffers = glGenRenderbuffers;
+        interface->fGetFramebufferAttachmentParameteriv = glGetFramebufferAttachmentParameteriv;
+        interface->fGetRenderbufferParameteriv = glGetRenderbufferParameteriv;
+        interface->fRenderbufferStorage = glRenderbufferStorage;
+    #if GL_OES_mapbuffer
+        interface->fMapBuffer = glMapBufferOES;
+        interface->fUnmapBuffer = glUnmapBufferOES;
+    #endif
+    }
+    glInterface.get()->ref();
+    return glInterface.get();
+}