ui/gl/gl_image_egl.cc

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ui/gl/gl_image_egl.h"
   6
   7 #include "ui/gl/gl_surface_egl.h"
   8
   9 namespace gfx {
  10
  11 GLImageEGL::GLImageEGL(gfx::Size size)
  12     : egl_image_(EGL_NO_IMAGE_KHR), size_(size) {}
  13
  14 GLImageEGL::~GLImageEGL() { Destroy(); }
  15
  16 bool GLImageEGL::Initialize(EGLenum target,
  17                             EGLClientBuffer buffer,
  18                             const EGLint* attrs) {
  19   DCHECK_EQ(EGL_NO_IMAGE_KHR, egl_image_);
  20   egl_image_ = eglCreateImageKHR(GLSurfaceEGL::GetHardwareDisplay(),
  21                                  EGL_NO_CONTEXT,
  22                                  target,
  23                                  buffer,
  24                                  attrs);
  25   if (egl_image_ == EGL_NO_IMAGE_KHR) {
  26     EGLint error = eglGetError();
  27     LOG(ERROR) << "Error creating EGLImage: " << error;
  28     return false;
  29   }
  30
  31   return true;
  32 }
  33
  34 void GLImageEGL::Destroy() {
  35   if (egl_image_ != EGL_NO_IMAGE_KHR) {
  36     eglDestroyImageKHR(GLSurfaceEGL::GetHardwareDisplay(), egl_image_);
  37     egl_image_ = EGL_NO_IMAGE_KHR;
  38   }
  39 }
  40
  41 gfx::Size GLImageEGL::GetSize() { return size_; }
  42
  43 bool GLImageEGL::BindTexImage(unsigned target) {
  44   DCHECK_NE(EGL_NO_IMAGE_KHR, egl_image_);
  45   glEGLImageTargetTexture2DOES(target, egl_image_);
  46   DCHECK_EQ(static_cast<GLenum>(GL_NO_ERROR), glGetError());
  47   return true;
  48 }
  49
  50 }  // namespace gfx