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// Copyright (c) 2013 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 "ui/gl/gl_image_egl.h"
#include "ui/gl/gl_bindings.h"
namespace gfx {
GLImageEGL::GLImageEGL(gfx::Size size)
: egl_image_(EGL_NO_IMAGE_KHR),
size_(size) {
}
GLImageEGL::~GLImageEGL() {
Destroy();
}
bool GLImageEGL::Initialize(gfx::GpuMemoryBufferHandle buffer) {
EGLClientBuffer cbuf = static_cast<EGLClientBuffer>(buffer);
EGLint attrs[] = {
EGL_IMAGE_PRESERVED_KHR, EGL_TRUE,
EGL_NONE,
};
egl_image_ = eglCreateImageKHR(
eglGetDisplay(EGL_DEFAULT_DISPLAY),
EGL_NO_CONTEXT,
EGL_NATIVE_BUFFER_ANDROID,
cbuf,
attrs);
if (egl_image_ == EGL_NO_IMAGE_KHR) {
EGLint error = eglGetError();
LOG(ERROR) << "Error creating EGLImage: " << error;
return false;
}
return true;
}
bool GLImageEGL::BindTexImage() {
if (egl_image_ == EGL_NO_IMAGE_KHR) {
LOG(ERROR) << "NULL EGLImage in BindTexImage";
return false;
}
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, egl_image_);
if (glGetError() != GL_NO_ERROR) {
return false;
}
return true;
}
gfx::Size GLImageEGL::GetSize() {
return size_;
}
void GLImageEGL::Destroy() {
if (egl_image_ == EGL_NO_IMAGE_KHR)
return;
EGLBoolean success = eglDestroyImageKHR(
eglGetDisplay(EGL_DEFAULT_DISPLAY), egl_image_);
if (success == EGL_FALSE) {
EGLint error = eglGetError();
LOG(ERROR) << "Error destroying EGLImage: " << error;
}
egl_image_ = EGL_NO_IMAGE_KHR;
}
void GLImageEGL::ReleaseTexImage() {
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 0, 0, 0, GL_RGBA, GL_UNSIGNED_BYTE,
NULL);
}
} // namespace gfx
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