// Copyright 2019 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "starboard/gles.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace starboard {
namespace nplb {
namespace {

#if SB_API_VERSION >= 11

// Verifies that we are able to query for the Starboard OpenGL ES interface, and
// that the interface is correctly populated with function pointers that cover
// the OpenGL ES 2.0 interface.

TEST(SbGlesInterfaceTest, HasValidGlesInterface) {
  const SbGlesInterface* const gles_interface = SbGetGlesInterface();

  if (!gles_interface) {
    return;
  }

  EXPECT_NE(nullptr, gles_interface->glActiveTexture);
  EXPECT_NE(nullptr, gles_interface->glAttachShader);
  EXPECT_NE(nullptr, gles_interface->glBindAttribLocation);
  EXPECT_NE(nullptr, gles_interface->glBindBuffer);
  EXPECT_NE(nullptr, gles_interface->glBindFramebuffer);
  EXPECT_NE(nullptr, gles_interface->glBindRenderbuffer);
  EXPECT_NE(nullptr, gles_interface->glBindTexture);
  EXPECT_NE(nullptr, gles_interface->glBlendColor);
  EXPECT_NE(nullptr, gles_interface->glBlendEquation);
  EXPECT_NE(nullptr, gles_interface->glBlendEquationSeparate);
  EXPECT_NE(nullptr, gles_interface->glBlendFunc);
  EXPECT_NE(nullptr, gles_interface->glBlendFuncSeparate);
  EXPECT_NE(nullptr, gles_interface->glBufferData);
  EXPECT_NE(nullptr, gles_interface->glBufferSubData);
  EXPECT_NE(nullptr, gles_interface->glCheckFramebufferStatus);
  EXPECT_NE(nullptr, gles_interface->glClear);
  EXPECT_NE(nullptr, gles_interface->glClearColor);
  EXPECT_NE(nullptr, gles_interface->glClearDepthf);
  EXPECT_NE(nullptr, gles_interface->glClearStencil);
  EXPECT_NE(nullptr, gles_interface->glColorMask);
  EXPECT_NE(nullptr, gles_interface->glCompileShader);
  EXPECT_NE(nullptr, gles_interface->glCompressedTexImage2D);
  EXPECT_NE(nullptr, gles_interface->glCompressedTexSubImage2D);
  EXPECT_NE(nullptr, gles_interface->glCopyTexImage2D);
  EXPECT_NE(nullptr, gles_interface->glCopyTexSubImage2D);
  EXPECT_NE(nullptr, gles_interface->glCreateProgram);
  EXPECT_NE(nullptr, gles_interface->glCreateShader);
  EXPECT_NE(nullptr, gles_interface->glCullFace);
  EXPECT_NE(nullptr, gles_interface->glDeleteBuffers);
  EXPECT_NE(nullptr, gles_interface->glDeleteFramebuffers);
  EXPECT_NE(nullptr, gles_interface->glDeleteProgram);
  EXPECT_NE(nullptr, gles_interface->glDeleteRenderbuffers);
  EXPECT_NE(nullptr, gles_interface->glDeleteShader);
  EXPECT_NE(nullptr, gles_interface->glDeleteTextures);
  EXPECT_NE(nullptr, gles_interface->glDepthFunc);
  EXPECT_NE(nullptr, gles_interface->glDepthMask);
  EXPECT_NE(nullptr, gles_interface->glDepthRangef);
  EXPECT_NE(nullptr, gles_interface->glDetachShader);
  EXPECT_NE(nullptr, gles_interface->glDisable);
  EXPECT_NE(nullptr, gles_interface->glDisableVertexAttribArray);
  EXPECT_NE(nullptr, gles_interface->glDrawArrays);
  EXPECT_NE(nullptr, gles_interface->glDrawElements);
  EXPECT_NE(nullptr, gles_interface->glEnable);
  EXPECT_NE(nullptr, gles_interface->glEnableVertexAttribArray);
  EXPECT_NE(nullptr, gles_interface->glFinish);
  EXPECT_NE(nullptr, gles_interface->glFlush);
  EXPECT_NE(nullptr, gles_interface->glFramebufferRenderbuffer);
  EXPECT_NE(nullptr, gles_interface->glFramebufferTexture2D);
  EXPECT_NE(nullptr, gles_interface->glFrontFace);
  EXPECT_NE(nullptr, gles_interface->glGenBuffers);
  EXPECT_NE(nullptr, gles_interface->glGenerateMipmap);
  EXPECT_NE(nullptr, gles_interface->glGenFramebuffers);
  EXPECT_NE(nullptr, gles_interface->glGenRenderbuffers);
  EXPECT_NE(nullptr, gles_interface->glGenTextures);
  EXPECT_NE(nullptr, gles_interface->glGetActiveAttrib);
  EXPECT_NE(nullptr, gles_interface->glGetActiveUniform);
  EXPECT_NE(nullptr, gles_interface->glGetAttachedShaders);
  EXPECT_NE(nullptr, gles_interface->glGetAttribLocation);
  EXPECT_NE(nullptr, gles_interface->glGetBooleanv);
  EXPECT_NE(nullptr, gles_interface->glGetBufferParameteriv);
  EXPECT_NE(nullptr, gles_interface->glGetError);
  EXPECT_NE(nullptr, gles_interface->glGetFloatv);
  EXPECT_NE(nullptr, gles_interface->glGetFramebufferAttachmentParameteriv);
  EXPECT_NE(nullptr, gles_interface->glGetIntegerv);
  EXPECT_NE(nullptr, gles_interface->glGetProgramiv);
  EXPECT_NE(nullptr, gles_interface->glGetProgramInfoLog);
  EXPECT_NE(nullptr, gles_interface->glGetRenderbufferParameteriv);
  EXPECT_NE(nullptr, gles_interface->glGetShaderiv);
  EXPECT_NE(nullptr, gles_interface->glGetShaderInfoLog);
  EXPECT_NE(nullptr, gles_interface->glGetShaderPrecisionFormat);
  EXPECT_NE(nullptr, gles_interface->glGetShaderSource);
  EXPECT_NE(nullptr, gles_interface->glGetString);
  EXPECT_NE(nullptr, gles_interface->glGetTexParameterfv);
  EXPECT_NE(nullptr, gles_interface->glGetTexParameteriv);
  EXPECT_NE(nullptr, gles_interface->glGetUniformfv);
  EXPECT_NE(nullptr, gles_interface->glGetUniformiv);
  EXPECT_NE(nullptr, gles_interface->glGetUniformLocation);
  EXPECT_NE(nullptr, gles_interface->glGetVertexAttribfv);
  EXPECT_NE(nullptr, gles_interface->glGetVertexAttribiv);
  EXPECT_NE(nullptr, gles_interface->glGetVertexAttribPointerv);
  EXPECT_NE(nullptr, gles_interface->glHint);
  EXPECT_NE(nullptr, gles_interface->glIsBuffer);
  EXPECT_NE(nullptr, gles_interface->glIsEnabled);
  EXPECT_NE(nullptr, gles_interface->glIsFramebuffer);
  EXPECT_NE(nullptr, gles_interface->glIsProgram);
  EXPECT_NE(nullptr, gles_interface->glIsRenderbuffer);
  EXPECT_NE(nullptr, gles_interface->glIsShader);
  EXPECT_NE(nullptr, gles_interface->glIsTexture);
  EXPECT_NE(nullptr, gles_interface->glLineWidth);
  EXPECT_NE(nullptr, gles_interface->glLinkProgram);
  EXPECT_NE(nullptr, gles_interface->glPixelStorei);
  EXPECT_NE(nullptr, gles_interface->glPolygonOffset);
  EXPECT_NE(nullptr, gles_interface->glReadPixels);
  EXPECT_NE(nullptr, gles_interface->glReleaseShaderCompiler);
  EXPECT_NE(nullptr, gles_interface->glRenderbufferStorage);
  EXPECT_NE(nullptr, gles_interface->glSampleCoverage);
  EXPECT_NE(nullptr, gles_interface->glScissor);
  EXPECT_NE(nullptr, gles_interface->glShaderBinary);
  EXPECT_NE(nullptr, gles_interface->glShaderSource);
  EXPECT_NE(nullptr, gles_interface->glStencilFunc);
  EXPECT_NE(nullptr, gles_interface->glStencilFuncSeparate);
  EXPECT_NE(nullptr, gles_interface->glStencilMask);
  EXPECT_NE(nullptr, gles_interface->glStencilMaskSeparate);
  EXPECT_NE(nullptr, gles_interface->glStencilOp);
  EXPECT_NE(nullptr, gles_interface->glStencilOpSeparate);
  EXPECT_NE(nullptr, gles_interface->glTexImage2D);
  EXPECT_NE(nullptr, gles_interface->glTexParameterf);
  EXPECT_NE(nullptr, gles_interface->glTexParameterfv);
  EXPECT_NE(nullptr, gles_interface->glTexParameteri);
  EXPECT_NE(nullptr, gles_interface->glTexParameteriv);
  EXPECT_NE(nullptr, gles_interface->glTexSubImage2D);
  EXPECT_NE(nullptr, gles_interface->glUniform1f);
  EXPECT_NE(nullptr, gles_interface->glUniform1fv);
  EXPECT_NE(nullptr, gles_interface->glUniform1i);
  EXPECT_NE(nullptr, gles_interface->glUniform1iv);
  EXPECT_NE(nullptr, gles_interface->glUniform2f);
  EXPECT_NE(nullptr, gles_interface->glUniform2fv);
  EXPECT_NE(nullptr, gles_interface->glUniform2i);
  EXPECT_NE(nullptr, gles_interface->glUniform2iv);
  EXPECT_NE(nullptr, gles_interface->glUniform3f);
  EXPECT_NE(nullptr, gles_interface->glUniform3fv);
  EXPECT_NE(nullptr, gles_interface->glUniform3i);
  EXPECT_NE(nullptr, gles_interface->glUniform3iv);
  EXPECT_NE(nullptr, gles_interface->glUniform4f);
  EXPECT_NE(nullptr, gles_interface->glUniform4fv);
  EXPECT_NE(nullptr, gles_interface->glUniform4i);
  EXPECT_NE(nullptr, gles_interface->glUniform4iv);
  EXPECT_NE(nullptr, gles_interface->glUniformMatrix2fv);
  EXPECT_NE(nullptr, gles_interface->glUniformMatrix3fv);
  EXPECT_NE(nullptr, gles_interface->glUniformMatrix4fv);
  EXPECT_NE(nullptr, gles_interface->glUseProgram);
  EXPECT_NE(nullptr, gles_interface->glValidateProgram);
  EXPECT_NE(nullptr, gles_interface->glVertexAttrib1f);
  EXPECT_NE(nullptr, gles_interface->glVertexAttrib1fv);
  EXPECT_NE(nullptr, gles_interface->glVertexAttrib2f);
  EXPECT_NE(nullptr, gles_interface->glVertexAttrib2fv);
  EXPECT_NE(nullptr, gles_interface->glVertexAttrib3f);
  EXPECT_NE(nullptr, gles_interface->glVertexAttrib3fv);
  EXPECT_NE(nullptr, gles_interface->glVertexAttrib4f);
  EXPECT_NE(nullptr, gles_interface->glVertexAttrib4fv);
  EXPECT_NE(nullptr, gles_interface->glVertexAttribPointer);
  EXPECT_NE(nullptr, gles_interface->glViewport);
}

#endif  // SB_API_VERSION >= 11

}  // namespace
}  // namespace nplb
}  // namespace starboard