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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// Provides a webviewchromium glue layer adapter from the internal Android
// GL Functor data types into the types the chromium stack expects, and back.
#define LOG_TAG "webviewchromium_plat_support"
#include "draw_gl.h"
#include <errno.h>
#include <jni.h>
#include <private/hwui/DrawGlInfo.h>
#include <string.h>
#include <sys/resource.h>
#include <sys/time.h>
#include <utils/Functor.h>
#include <utils/Log.h>
#define NELEM(x) ((int) (sizeof(x) / sizeof((x)[0])))
#define COMPILE_ASSERT(expr, err) \
__unused static const char (err)[(expr) ? 1 : -1] = "";
namespace android {
namespace {
AwDrawGLFunction* g_aw_drawgl_function = NULL;
class DrawGLFunctor : public Functor {
public:
explicit DrawGLFunctor(jlong view_context) : view_context_(view_context) {}
virtual ~DrawGLFunctor() {}
// Functor
virtual status_t operator ()(int what, void* data) {
using uirenderer::DrawGlInfo;
if (!g_aw_drawgl_function) {
ALOGE("Cannot draw: no DrawGL Function installed");
return DrawGlInfo::kStatusDone;
}
AwDrawGLInfo aw_info;
aw_info.version = kAwDrawGLInfoVersion;
switch (what) {
case DrawGlInfo::kModeDraw: {
aw_info.mode = AwDrawGLInfo::kModeDraw;
DrawGlInfo* gl_info = reinterpret_cast<DrawGlInfo*>(data);
// Map across the input values.
aw_info.clip_left = gl_info->clipLeft;
aw_info.clip_top = gl_info->clipTop;
aw_info.clip_right = gl_info->clipRight;
aw_info.clip_bottom = gl_info->clipBottom;
aw_info.width = gl_info->width;
aw_info.height = gl_info->height;
aw_info.is_layer = gl_info->isLayer;
COMPILE_ASSERT(NELEM(aw_info.transform) == NELEM(gl_info->transform),
mismatched_transform_matrix_sizes);
for (int i = 0; i < NELEM(aw_info.transform); ++i) {
aw_info.transform[i] = gl_info->transform[i];
}
break;
}
case DrawGlInfo::kModeProcess:
aw_info.mode = AwDrawGLInfo::kModeProcess;
break;
case DrawGlInfo::kModeProcessNoContext:
aw_info.mode = AwDrawGLInfo::kModeProcessNoContext;
break;
case DrawGlInfo::kModeSync:
aw_info.mode = AwDrawGLInfo::kModeSync;
break;
default:
ALOGE("Unexpected DrawGLInfo type %d", what);
return DrawGlInfo::kStatusDone;
}
// Invoke the DrawGL method.
g_aw_drawgl_function(view_context_, &aw_info, NULL);
return DrawGlInfo::kStatusDone;
}
private:
intptr_t view_context_;
};
// Raise the file handle soft limit to the hard limit since gralloc buffers
// uses file handles.
void RaiseFileNumberLimit() {
static bool have_raised_limit = false;
if (have_raised_limit)
return;
have_raised_limit = true;
struct rlimit limit_struct;
limit_struct.rlim_cur = 0;
limit_struct.rlim_max = 0;
if (getrlimit(RLIMIT_NOFILE, &limit_struct) == 0) {
limit_struct.rlim_cur = limit_struct.rlim_max;
if (setrlimit(RLIMIT_NOFILE, &limit_struct) != 0) {
ALOGE("setrlimit failed: %s", strerror(errno));
}
} else {
ALOGE("getrlimit failed: %s", strerror(errno));
}
}
jlong CreateGLFunctor(JNIEnv*, jclass, jlong view_context) {
RaiseFileNumberLimit();
return reinterpret_cast<jlong>(new DrawGLFunctor(view_context));
}
void DestroyGLFunctor(JNIEnv*, jclass, jlong functor) {
delete reinterpret_cast<DrawGLFunctor*>(functor);
}
void SetChromiumAwDrawGLFunction(JNIEnv*, jclass, jlong draw_function) {
g_aw_drawgl_function = reinterpret_cast<AwDrawGLFunction*>(draw_function);
}
const char kClassName[] = "com/android/webview/chromium/DrawGLFunctor";
const JNINativeMethod kJniMethods[] = {
{ "nativeCreateGLFunctor", "(J)J",
reinterpret_cast<void*>(CreateGLFunctor) },
{ "nativeDestroyGLFunctor", "(J)V",
reinterpret_cast<void*>(DestroyGLFunctor) },
{ "nativeSetChromiumAwDrawGLFunction", "(J)V",
reinterpret_cast<void*>(SetChromiumAwDrawGLFunction) },
};
} // namespace
void RegisterDrawGLFunctor(JNIEnv* env) {
jclass clazz = env->FindClass(kClassName);
LOG_ALWAYS_FATAL_IF(!clazz, "Unable to find class '%s'", kClassName);
int res = env->RegisterNatives(clazz, kJniMethods, NELEM(kJniMethods));
LOG_ALWAYS_FATAL_IF(res < 0, "register native methods failed: res=%d", res);
}
} // namespace android
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