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// Copyright 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/android/surface_texture.h"
#include <android/native_window_jni.h>
// TODO(boliu): Remove this include when we move off ICS.
#include "base/android/build_info.h"
#include "base/android/jni_android.h"
#include "base/logging.h"
#include "jni/SurfaceTexturePlatformWrapper_jni.h"
#include "ui/gl/android/scoped_java_surface.h"
#include "ui/gl/android/surface_texture_listener.h"
#include "ui/gl/gl_bindings.h"
// TODO(boliu): Remove this method when when we move off ICS. See
// http://crbug.com/161864.
bool GlContextMethodsAvailable() {
bool available = base::android::BuildInfo::GetInstance()->sdk_int() >= 16;
if (!available)
LOG(WARNING) << "Running on unsupported device: rendering may not work";
return available;
}
namespace gfx {
scoped_refptr<SurfaceTexture> SurfaceTexture::Create(int texture_id) {
JNIEnv* env = base::android::AttachCurrentThread();
return new SurfaceTexture(
Java_SurfaceTexturePlatformWrapper_create(env, texture_id));
}
scoped_refptr<SurfaceTexture> SurfaceTexture::CreateSingleBuffered(
int texture_id) {
DCHECK(IsSingleBufferModeSupported());
JNIEnv* env = base::android::AttachCurrentThread();
return new SurfaceTexture(
Java_SurfaceTexturePlatformWrapper_createSingleBuffered(env, texture_id));
}
SurfaceTexture::SurfaceTexture(
const base::android::ScopedJavaLocalRef<jobject>& j_surface_texture) {
j_surface_texture_.Reset(j_surface_texture);
}
SurfaceTexture::~SurfaceTexture() {
JNIEnv* env = base::android::AttachCurrentThread();
Java_SurfaceTexturePlatformWrapper_destroy(env, j_surface_texture_.obj());
}
void SurfaceTexture::SetFrameAvailableCallback(
const base::Closure& callback) {
JNIEnv* env = base::android::AttachCurrentThread();
Java_SurfaceTexturePlatformWrapper_setFrameAvailableCallback(
env,
j_surface_texture_.obj(),
reinterpret_cast<intptr_t>(new SurfaceTextureListener(callback)));
}
void SurfaceTexture::UpdateTexImage() {
JNIEnv* env = base::android::AttachCurrentThread();
Java_SurfaceTexturePlatformWrapper_updateTexImage(env,
j_surface_texture_.obj());
}
void SurfaceTexture::ReleaseTexImage() {
DCHECK(IsSingleBufferModeSupported());
JNIEnv* env = base::android::AttachCurrentThread();
Java_SurfaceTexturePlatformWrapper_releaseTexImage(env,
j_surface_texture_.obj());
}
void SurfaceTexture::GetTransformMatrix(float mtx[16]) {
JNIEnv* env = base::android::AttachCurrentThread();
base::android::ScopedJavaLocalRef<jfloatArray> jmatrix(
env, env->NewFloatArray(16));
Java_SurfaceTexturePlatformWrapper_getTransformMatrix(
env, j_surface_texture_.obj(), jmatrix.obj());
jboolean is_copy;
jfloat* elements = env->GetFloatArrayElements(jmatrix.obj(), &is_copy);
for (int i = 0; i < 16; ++i) {
mtx[i] = static_cast<float>(elements[i]);
}
env->ReleaseFloatArrayElements(jmatrix.obj(), elements, JNI_ABORT);
}
void SurfaceTexture::SetDefaultBufferSize(int width, int height) {
JNIEnv* env = base::android::AttachCurrentThread();
if (width > 0 && height > 0) {
Java_SurfaceTexturePlatformWrapper_setDefaultBufferSize(
env, j_surface_texture_.obj(), static_cast<jint>(width),
static_cast<jint>(height));
} else {
LOG(WARNING) << "Not setting surface texture buffer size - "
"width or height is 0";
}
}
void SurfaceTexture::AttachToGLContext() {
if (GlContextMethodsAvailable()) {
int texture_id;
glGetIntegerv(GL_TEXTURE_BINDING_EXTERNAL_OES, &texture_id);
DCHECK(texture_id);
JNIEnv* env = base::android::AttachCurrentThread();
Java_SurfaceTexturePlatformWrapper_attachToGLContext(
env, j_surface_texture_.obj(), texture_id);
}
}
void SurfaceTexture::DetachFromGLContext() {
if (GlContextMethodsAvailable()) {
JNIEnv* env = base::android::AttachCurrentThread();
Java_SurfaceTexturePlatformWrapper_detachFromGLContext(
env, j_surface_texture_.obj());
}
}
ANativeWindow* SurfaceTexture::CreateSurface() {
JNIEnv* env = base::android::AttachCurrentThread();
ScopedJavaSurface surface(this);
// Note: This ensures that any local references used by
// ANativeWindow_fromSurface are released immediately. This is needed as a
// workaround for https://code.google.com/p/android/issues/detail?id=68174
base::android::ScopedJavaLocalFrame scoped_local_reference_frame(env);
ANativeWindow* native_window = ANativeWindow_fromSurface(
env, surface.j_surface().obj());
return native_window;
}
// static
bool SurfaceTexture::IsSingleBufferModeSupported() {
return base::android::BuildInfo::GetInstance()->sdk_int() >= 19;
}
bool SurfaceTexture::RegisterSurfaceTexture(JNIEnv* env) {
return RegisterNativesImpl(env);
}
} // namespace gfx
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