Add command_buffer_gles2

gpu/command_buffer_gles2/command_buffer_egl.cc

+// Copyright 2015 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 <EGL/egl.h>
+
+#include "base/at_exit.h"
+#include "gpu/command_buffer_gles2/command_buffer_gles2_export.h"
+#include "ui/gl/gl_implementation.h"
+
+base::AtExitManager exit_manager;

[no sievers, 2015/08/28 18:39:33]

Ok, so you don't want to expose this detail to skia for it to put the instance
on the main stack frame.

You could still try to create it on the heap from eglInitialize() and clean it
up in Terminate(). Maybe it's a bit closer to what happens in other places where
it's on the main stackframe. (Note that the AtExitManager is annotated with
comments that say it should be used that way.) Maybe it doesn't matter here -
you could try like this and revisit if you run into problems too.

+
+extern "C" {
+
+EGLDisplay GPU_COMMAND_BUFFER_EGL_EXPORT
+CommandBuffer_GetDisplay(EGLNativeDisplayType display_id) {
+  return eglGetDisplay(display_id);
+}
+
+EGLBoolean GPU_COMMAND_BUFFER_EGL_EXPORT
+CommandBuffer_Initialize(EGLDisplay dpy, EGLint* major, EGLint* minor) {
+  EGLBoolean result = eglInitialize(dpy, major, minor);
+  DCHECK(gfx::GetGLImplementation() != gfx::kGLImplementationNone);
+  return result;
+}
+
+EGLBoolean GPU_COMMAND_BUFFER_EGL_EXPORT
+CommandBuffer_Terminate(EGLDisplay dpy) {
+  return eglTerminate(dpy);
+}
+
+EGLBoolean GPU_COMMAND_BUFFER_EGL_EXPORT
+CommandBuffer_ChooseConfig(EGLDisplay dpy,
+                           const EGLint* attrib_list,
+                           EGLConfig* configs,
+                           EGLint config_size,
+                           EGLint* num_config) {
+  return eglChooseConfig(dpy, attrib_list, configs, config_size, num_config);
+}
+
+EGLBoolean GPU_COMMAND_BUFFER_EGL_EXPORT
+CommandBuffer_GetConfigAttrib(EGLDisplay dpy,
+                              EGLConfig config,
+                              EGLint attribute,
+                              EGLint* value) {
+  return eglGetConfigAttrib(dpy, config, attribute, value);
+}
+
+EGLSurface GPU_COMMAND_BUFFER_EGL_EXPORT
+CommandBuffer_CreateWindowSurface(EGLDisplay dpy,
+                                  EGLConfig config,
+                                  EGLNativeWindowType win,
+                                  const EGLint* attrib_list) {
+  return eglCreateWindowSurface(dpy, config, win, attrib_list);
+}
+
+EGLSurface GPU_COMMAND_BUFFER_EGL_EXPORT
+CommandBuffer_CreatePbufferSurface(EGLDisplay dpy,
+                                   EGLConfig config,
+                                   const EGLint* attrib_list) {
+  return eglCreatePbufferSurface(dpy, config, attrib_list);
+}
+
+EGLBoolean GPU_COMMAND_BUFFER_EGL_EXPORT
+CommandBuffer_DestroySurface(EGLDisplay dpy, EGLSurface surface) {
+  return eglDestroySurface(dpy, surface);
+}
+
+EGLContext GPU_COMMAND_BUFFER_EGL_EXPORT
+CommandBuffer_CreateContext(EGLDisplay dpy,
+                            EGLConfig config,
+                            EGLContext share_context,
+                            const EGLint* attrib_list) {
+  return eglCreateContext(dpy, config, share_context, attrib_list);
+}
+
+EGLBoolean GPU_COMMAND_BUFFER_EGL_EXPORT
+CommandBuffer_DestroyContext(EGLDisplay dpy, EGLContext ctx) {
+  return eglDestroyContext(dpy, ctx);
+}
+
+EGLBoolean GPU_COMMAND_BUFFER_EGL_EXPORT
+CommandBuffer_MakeCurrent(EGLDisplay dpy,
+                          EGLSurface draw,
+                          EGLSurface read,
+                          EGLContext ctx) {
+  return eglMakeCurrent(dpy, draw, read, ctx);
+}
+
+EGLBoolean GPU_COMMAND_BUFFER_EGL_EXPORT
+CommandBuffer_SwapBuffers(EGLDisplay dpy, EGLSurface surface) {
+  return eglSwapBuffers(dpy, surface);
+}
+
+__eglMustCastToProperFunctionPointerType GPU_COMMAND_BUFFER_EGL_EXPORT
+CommandBuffer_GetProcAddress(const char* procname) {
+  return eglGetProcAddress(procname);
+}
+}  // extern "C"