Rework FlushSync to return early if commands have been processed since the last update

gpu/pgl/pgl_proc_address.cc

Index: gpu/pgl/pgl_proc_address.cc
diff --git a/gpu/pgl/pgl_proc_address.cc b/gpu/pgl/pgl_proc_address.cc
deleted file mode 100644
index aab7b2e8fc3d68e7357aca97d74c405e8c148627..0000000000000000000000000000000000000000
--- a/gpu/pgl/pgl_proc_address.cc
+++ /dev/null
@@ -1,315 +0,0 @@
-// Copyright (c) 2009 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.
-
-// This file contains the implementation of pglGetProcAddress
-
-#include <string.h>
-#include <GLES2/gl2.h>
-
-extern "C" {
-
-typedef void (*PGLFunctionPointer)(void);
-struct PGLFunctionInfo {
-  PGLFunctionPointer func;
-  char const * const name;
-};
-
-void (*pglGetProcAddress(char const * procname))() {
-  static const struct PGLFunctionInfo gl_functions[] = {
-    { (PGLFunctionPointer)(&glActiveTexture),
-      "glActiveTexture", },
-    { (PGLFunctionPointer)(&glAttachShader),
-      "glAttachShader", },
-    { (PGLFunctionPointer)(&glBindAttribLocation),
-      "glBindAttribLocation", },
-    { (PGLFunctionPointer)(&glBindBuffer),
-      "glBindBuffer", },
-    { (PGLFunctionPointer)(&glBindFramebuffer),
-      "glBindFramebuffer", },
-    { (PGLFunctionPointer)(&glBindRenderbuffer),
-      "glBindRenderbuffer", },
-    { (PGLFunctionPointer)(&glBindTexture),
-      "glBindTexture", },
-    { (PGLFunctionPointer)(&glBlendColor),
-      "glBlendColor", },
-    { (PGLFunctionPointer)(&glBlendEquation),
-      "glBlendEquation", },
-    { (PGLFunctionPointer)(&glBlendEquationSeparate),
-      "glBlendEquationSeparate", },
-    { (PGLFunctionPointer)(&glBlendFunc),
-      "glBlendFunc", },
-    { (PGLFunctionPointer)(&glBlendFuncSeparate),
-      "glBlendFuncSeparate", },
-    { (PGLFunctionPointer)(&glBufferData),
-      "glBufferData", },
-    { (PGLFunctionPointer)(&glBufferSubData),
-      "glBufferSubData", },
-    { (PGLFunctionPointer)(&glCheckFramebufferStatus),
-      "glCheckFramebufferStatus", },
-    { (PGLFunctionPointer)(&glClear),
-      "glClear", },
-    { (PGLFunctionPointer)(&glClearColor),
-      "glClearColor", },
-    { (PGLFunctionPointer)(&glClearDepthf),
-      "glClearDepthf", },
-    { (PGLFunctionPointer)(&glClearStencil),
-      "glClearStencil", },
-    { (PGLFunctionPointer)(&glColorMask),
-      "glColorMask", },
-    { (PGLFunctionPointer)(&glCompileShader),
-      "glCompileShader", },
-    { (PGLFunctionPointer)(&glCompressedTexImage2D),
-      "glCompressedTexImage2D", },
-    { (PGLFunctionPointer)(&glCompressedTexSubImage2D),
-      "glCompressedTexSubImage2D", },
-    { (PGLFunctionPointer)(&glCopyTexImage2D),
-      "glCopyTexImage2D", },
-    { (PGLFunctionPointer)(&glCopyTexSubImage2D),
-      "glCopyTexSubImage2D", },
-    { (PGLFunctionPointer)(&glCreateProgram),
-      "glCreateProgram", },
-    { (PGLFunctionPointer)(&glCreateShader),
-      "glCreateShader", },
-    { (PGLFunctionPointer)(&glCullFace),
-      "glCullFace", },
-    { (PGLFunctionPointer)(&glDeleteBuffers),
-      "glDeleteBuffers", },
-    { (PGLFunctionPointer)(&glDeleteFramebuffers),
-      "glDeleteFramebuffers", },
-    { (PGLFunctionPointer)(&glDeleteProgram),
-      "glDeleteProgram", },
-    { (PGLFunctionPointer)(&glDeleteRenderbuffers),
-      "glDeleteRenderbuffers", },
-    { (PGLFunctionPointer)(&glDeleteShader),
-      "glDeleteShader", },
-    { (PGLFunctionPointer)(&glDeleteTextures),
-      "glDeleteTextures", },
-    { (PGLFunctionPointer)(&glDepthFunc),
-      "glDepthFunc", },
-    { (PGLFunctionPointer)(&glDepthMask),
-      "glDepthMask", },
-    { (PGLFunctionPointer)(&glDepthRangef),
-      "glDepthRangef", },
-    { (PGLFunctionPointer)(&glDetachShader),
-      "glDetachShader", },
-    { (PGLFunctionPointer)(&glDisable),
-      "glDisable", },
-    { (PGLFunctionPointer)(&glDisableVertexAttribArray),
-      "glDisableVertexAttribArray", },
-    { (PGLFunctionPointer)(&glDrawArrays),
-      "glDrawArrays", },
-    { (PGLFunctionPointer)(&glDrawElements),
-      "glDrawElements", },
-    { (PGLFunctionPointer)(&glEnable),
-      "glEnable", },
-    { (PGLFunctionPointer)(&glEnableVertexAttribArray),
-      "glEnableVertexAttribArray", },
-    { (PGLFunctionPointer)(&glFinish),
-      "glFinish", },
-    { (PGLFunctionPointer)(&glFlush),
-      "glFlush", },
-    { (PGLFunctionPointer)(&glFramebufferRenderbuffer),
-      "glFramebufferRenderbuffer", },
-    { (PGLFunctionPointer)(&glFramebufferTexture2D),
-      "glFramebufferTexture2D", },
-    { (PGLFunctionPointer)(&glFrontFace),
-      "glFrontFace", },
-    { (PGLFunctionPointer)(&glGenBuffers),
-      "glGenBuffers", },
-    { (PGLFunctionPointer)(&glGenerateMipmap),
-      "glGenerateMipmap", },
-    { (PGLFunctionPointer)(&glGenFramebuffers),
-      "glGenFramebuffers", },
-    { (PGLFunctionPointer)(&glGenRenderbuffers),
-      "glGenRenderbuffers", },
-    { (PGLFunctionPointer)(&glGenTextures),
-      "glGenTextures", },
-    { (PGLFunctionPointer)(&glGetActiveAttrib),
-      "glGetActiveAttrib", },
-    { (PGLFunctionPointer)(&glGetActiveUniform),
-      "glGetActiveUniform", },
-    { (PGLFunctionPointer)(&glGetAttachedShaders),
-      "glGetAttachedShaders", },
-    { (PGLFunctionPointer)(&glGetAttribLocation),
-      "glGetAttribLocation", },
-    { (PGLFunctionPointer)(&glGetBooleanv),
-      "glGetBooleanv", },
-    { (PGLFunctionPointer)(&glGetBufferParameteriv),
-      "glGetBufferParameteriv", },
-    { (PGLFunctionPointer)(&glGetError),
-      "glGetError", },
-    { (PGLFunctionPointer)(&glGetFloatv),
-      "glGetFloatv", },
-    { (PGLFunctionPointer)(&glGetFramebufferAttachmentParameteriv),
-      "glGetFramebufferAttachmentParameteriv", },
-    { (PGLFunctionPointer)(&glGetIntegerv),
-      "glGetIntegerv", },
-    { (PGLFunctionPointer)(&glGetProgramiv),
-      "glGetProgramiv", },
-    { (PGLFunctionPointer)(&glGetProgramInfoLog),
-      "glGetProgramInfoLog", },
-    { (PGLFunctionPointer)(&glGetRenderbufferParameteriv),
-      "glGetRenderbufferParameteriv", },
-    { (PGLFunctionPointer)(&glGetShaderiv),
-      "glGetShaderiv", },
-    { (PGLFunctionPointer)(&glGetShaderInfoLog),
-      "glGetShaderInfoLog", },
-    { (PGLFunctionPointer)(&glGetShaderPrecisionFormat),
-      "glGetShaderPrecisionFormat", },
-    { (PGLFunctionPointer)(&glGetShaderSource),
-      "glGetShaderSource", },
-    { (PGLFunctionPointer)(&glGetString),
-      "glGetString", },
-    { (PGLFunctionPointer)(&glGetTexParameterfv),
-      "glGetTexParameterfv", },
-    { (PGLFunctionPointer)(&glGetTexParameteriv),
-      "glGetTexParameteriv", },
-    { (PGLFunctionPointer)(&glGetUniformfv),
-      "glGetUniformfv", },
-    { (PGLFunctionPointer)(&glGetUniformiv),
-      "glGetUniformiv", },
-    { (PGLFunctionPointer)(&glGetUniformLocation),
-      "glGetUniformLocation", },
-    { (PGLFunctionPointer)(&glGetVertexAttribfv),
-      "glGetVertexAttribfv", },
-    { (PGLFunctionPointer)(&glGetVertexAttribiv),
-      "glGetVertexAttribiv", },
-    { (PGLFunctionPointer)(&glGetVertexAttribPointerv),
-      "glGetVertexAttribPointerv", },
-    { (PGLFunctionPointer)(&glHint),
-      "glHint", },
-    { (PGLFunctionPointer)(&glIsBuffer),
-      "glIsBuffer", },
-    { (PGLFunctionPointer)(&glIsEnabled),
-      "glIsEnabled", },
-    { (PGLFunctionPointer)(&glIsFramebuffer),
-      "glIsFramebuffer", },
-    { (PGLFunctionPointer)(&glIsProgram),
-      "glIsProgram", },
-    { (PGLFunctionPointer)(&glIsRenderbuffer),
-      "glIsRenderbuffer", },
-    { (PGLFunctionPointer)(&glIsShader),
-      "glIsShader", },
-    { (PGLFunctionPointer)(&glIsTexture),
-      "glIsTexture", },
-    { (PGLFunctionPointer)(&glLineWidth),
-      "glLineWidth", },
-    { (PGLFunctionPointer)(&glLinkProgram),
-      "glLinkProgram", },
-    { (PGLFunctionPointer)(&glPixelStorei),
-      "glPixelStorei", },
-    { (PGLFunctionPointer)(&glPolygonOffset),
-      "glPolygonOffset", },
-    { (PGLFunctionPointer)(&glReadPixels),
-      "glReadPixels", },
-    { (PGLFunctionPointer)(&glReleaseShaderCompiler),
-      "glReleaseShaderCompiler", },
-    { (PGLFunctionPointer)(&glRenderbufferStorage),
-      "glRenderbufferStorage", },
-    { (PGLFunctionPointer)(&glSampleCoverage),
-      "glSampleCoverage", },
-    { (PGLFunctionPointer)(&glScissor),
-      "glScissor", },
-    { (PGLFunctionPointer)(&glShaderBinary),
-      "glShaderBinary", },
-    { (PGLFunctionPointer)(&glShaderSource),
-      "glShaderSource", },
-    { (PGLFunctionPointer)(&glStencilFunc),
-      "glStencilFunc", },
-    { (PGLFunctionPointer)(&glStencilFuncSeparate),
-      "glStencilFuncSeparate", },
-    { (PGLFunctionPointer)(&glStencilMask),
-      "glStencilMask", },
-    { (PGLFunctionPointer)(&glStencilMaskSeparate),
-      "glStencilMaskSeparate", },
-    { (PGLFunctionPointer)(&glStencilOp),
-      "glStencilOp", },
-    { (PGLFunctionPointer)(&glStencilOpSeparate),
-      "glStencilOpSeparate", },
-    { (PGLFunctionPointer)(&glTexImage2D),
-      "glTexImage2D", },
-    { (PGLFunctionPointer)(&glTexParameterf),
-      "glTexParameterf", },
-    { (PGLFunctionPointer)(&glTexParameterfv),
-      "glTexParameterfv", },
-    { (PGLFunctionPointer)(&glTexParameteri),
-      "glTexParameteri", },
-    { (PGLFunctionPointer)(&glTexParameteriv),
-      "glTexParameteriv", },
-    { (PGLFunctionPointer)(&glTexSubImage2D),
-      "glTexSubImage2D", },
-    { (PGLFunctionPointer)(&glUniform1f),
-      "glUniform1f", },
-    { (PGLFunctionPointer)(&glUniform1fv),
-      "glUniform1fv", },
-    { (PGLFunctionPointer)(&glUniform1i),
-      "glUniform1i", },
-    { (PGLFunctionPointer)(&glUniform1iv),
-      "glUniform1iv", },
-    { (PGLFunctionPointer)(&glUniform2f),
-      "glUniform2f", },
-    { (PGLFunctionPointer)(&glUniform2fv),
-      "glUniform2fv", },
-    { (PGLFunctionPointer)(&glUniform2i),
-      "glUniform2i", },
-    { (PGLFunctionPointer)(&glUniform2iv),
-      "glUniform2iv", },
-    { (PGLFunctionPointer)(&glUniform3f),
-      "glUniform3f", },
-    { (PGLFunctionPointer)(&glUniform3fv),
-      "glUniform3fv", },
-    { (PGLFunctionPointer)(&glUniform3i),
-      "glUniform3i", },
-    { (PGLFunctionPointer)(&glUniform3iv),
-      "glUniform3iv", },
-    { (PGLFunctionPointer)(&glUniform4f),
-      "glUniform4f", },
-    { (PGLFunctionPointer)(&glUniform4fv),
-      "glUniform4fv", },
-    { (PGLFunctionPointer)(&glUniform4i),
-      "glUniform4i", },
-    { (PGLFunctionPointer)(&glUniform4iv),
-      "glUniform4iv", },
-    { (PGLFunctionPointer)(&glUniformMatrix2fv),
-      "glUniformMatrix2fv", },
-    { (PGLFunctionPointer)(&glUniformMatrix3fv),
-      "glUniformMatrix3fv", },
-    { (PGLFunctionPointer)(&glUniformMatrix4fv),
-      "glUniformMatrix4fv", },
-    { (PGLFunctionPointer)(&glUseProgram),
-      "glUseProgram", },
-    { (PGLFunctionPointer)(&glValidateProgram),
-      "glValidateProgram", },
-    { (PGLFunctionPointer)(&glVertexAttrib1f),
-      "glVertexAttrib1f", },
-    { (PGLFunctionPointer)(&glVertexAttrib1fv),
-      "glVertexAttrib1fv", },
-    { (PGLFunctionPointer)(&glVertexAttrib2f),
-      "glVertexAttrib2f", },
-    { (PGLFunctionPointer)(&glVertexAttrib2fv),
-      "glVertexAttrib2fv", },
-    { (PGLFunctionPointer)(&glVertexAttrib3f),
-      "glVertexAttrib3f", },
-    { (PGLFunctionPointer)(&glVertexAttrib3fv),
-      "glVertexAttrib3fv", },
-    { (PGLFunctionPointer)(&glVertexAttrib4f),
-      "glVertexAttrib4f", },
-    { (PGLFunctionPointer)(&glVertexAttrib4fv),
-      "glVertexAttrib4fv", },
-    { (PGLFunctionPointer)(&glVertexAttribPointer),
-      "glVertexAttribPointer", },
-    { (PGLFunctionPointer)(&glViewport),
-      "glViewport", },
-  };
-
-  unsigned int num_functions = sizeof(gl_functions) / sizeof(gl_functions[0]);
-  for (unsigned int ii = 0; ii < num_functions; ++ii) {
-    if (strcmp(gl_functions[ii].name, procname) == 0) {
-      return gl_functions[ii].func;
-    }
-  }
-  return NULL;
-}
-}  // extern "C"
-