blob: 4b3e1bc999d9768997a9726a508b4b8b6942893c [file] [log] [blame]
// Copyright 2014 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_surface_texture.h"
#include "base/trace_event/trace_event.h"
#include "ui/gl/android/surface_texture.h"
namespace gl {
GLImageSurfaceTexture::GLImageSurfaceTexture(const gfx::Size& size)
: size_(size), texture_id_(0) {}
GLImageSurfaceTexture::~GLImageSurfaceTexture() {
bool GLImageSurfaceTexture::Initialize(SurfaceTexture* surface_texture) {
surface_texture_ = surface_texture;
return true;
gfx::Size GLImageSurfaceTexture::GetSize() {
return size_;
unsigned GLImageSurfaceTexture::GetInternalFormat() { return GL_RGBA; }
bool GLImageSurfaceTexture::BindTexImage(unsigned target) {
TRACE_EVENT0("gpu", "GLImageSurfaceTexture::BindTexImage");
if (target != GL_TEXTURE_EXTERNAL_OES) {
<< "Surface texture can only be bound to TEXTURE_EXTERNAL_OES target";
return false;
GLint texture_id;
glGetIntegerv(GL_TEXTURE_BINDING_EXTERNAL_OES, &texture_id);
if (texture_id_ && texture_id_ != texture_id) {
LOG(ERROR) << "Surface texture can only be bound to one texture ID";
return false;
if (texture_id != texture_id_) {
// Note: Surface textures used as gpu memory buffers are created with an
// initial dummy texture id of 0. We need to call DetachFromGLContext() here
// to detach from the dummy texture before we can attach to a real texture
// id. DetachFromGLContext() will delete the texture for the current
// attachment point so it's important that this is never called when
// attached to a real texture id. Detaching from the dummy texture id should
// not cause any problems as the GL should silently ignore 0 when passed to
// glDeleteTextures.
DCHECK_EQ(0, texture_id_);
// This will attach the surface texture to the texture currently bound to
texture_id_ = texture_id;
return true;
bool GLImageSurfaceTexture::CopyTexImage(unsigned target) {
return false;
bool GLImageSurfaceTexture::CopyTexSubImage(unsigned target,
const gfx::Point& offset,
const gfx::Rect& rect) {
return false;
bool GLImageSurfaceTexture::ScheduleOverlayPlane(
gfx::AcceleratedWidget widget,
int z_order,
gfx::OverlayTransform transform,
const gfx::Rect& bounds_rect,
const gfx::RectF& crop_rect,
bool enable_blend,
std::unique_ptr<gfx::GpuFence> gpu_fence) {
return false;
void GLImageSurfaceTexture::OnMemoryDump(
base::trace_event::ProcessMemoryDump* pmd,
uint64_t process_tracing_id,
const std::string& dump_name) {
// TODO(ericrk): Add OnMemoryDump for GLImages.
} // namespace gl