| // 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" |
| #include "ui/gl/gl_surface_egl.h" |
| |
| // === START ANDROID WORKAROUND b/11392857 |
| #include <sys/system_properties.h> |
| |
| namespace { |
| bool RequiresGrallocUnbind() { |
| static const char* kPropertyName = "ro.webview.gralloc_unbind"; |
| char prop_value[PROP_VALUE_MAX]; |
| int prop_value_length = __system_property_get(kPropertyName, prop_value); |
| if (prop_value_length == 1) { |
| if (strcmp(prop_value, "1") == 0) { |
| return true; |
| } else if (strcmp(prop_value, "0") == 0) { |
| return false; |
| } |
| } |
| LOG_IF(WARNING, prop_value_length > 0) |
| << "Unrecognized value for " << kPropertyName << ": " << prop_value; |
| return strcmp((char*)glGetString(GL_VENDOR), "NVIDIA Corporation") == 0; |
| } |
| } |
| // === END ANDROID WORKAROUND b/11392857 |
| |
| namespace gfx { |
| |
| GLImageEGL::GLImageEGL(gfx::Size size) |
| : egl_image_(EGL_NO_IMAGE_KHR), |
| size_(size) { |
| } |
| |
| GLImageEGL::~GLImageEGL() { |
| Destroy(); |
| } |
| |
| bool GLImageEGL::Initialize(gfx::GpuMemoryBufferHandle buffer) { |
| DCHECK(buffer.native_buffer_handle->GetNativeHandle()); |
| EGLint attrs[] = { |
| EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, |
| EGL_NONE, |
| }; |
| egl_image_ = eglCreateImageKHR( |
| GLSurfaceEGL::GetHardwareDisplay(), |
| EGL_NO_CONTEXT, |
| EGL_NATIVE_BUFFER_ANDROID, |
| buffer.native_buffer_handle->GetNativeHandle(), |
| 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( |
| GLSurfaceEGL::GetHardwareDisplay(), egl_image_); |
| |
| if (success == EGL_FALSE) { |
| EGLint error = eglGetError(); |
| LOG(ERROR) << "Error destroying EGLImage: " << error; |
| } |
| |
| egl_image_ = EGL_NO_IMAGE_KHR; |
| } |
| |
| void GLImageEGL::ReleaseTexImage() { |
| // === START ANDROID WORKAROUND b/11392857 |
| static bool requires_gralloc_unbind = RequiresGrallocUnbind(); |
| if (!requires_gralloc_unbind) return; |
| // === END ANDROID WORKAROUND b/11392857 |
| char zero[4] = { 0, }; |
| glTexImage2D(GL_TEXTURE_2D, |
| 0, |
| GL_RGBA, |
| 1, |
| 1, |
| 0, |
| GL_RGBA, |
| GL_UNSIGNED_BYTE, |
| &zero); |
| } |
| |
| } // namespace gfx |