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tenfourfox/widget/android/AndroidGraphicBuffer.cpp

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <dlfcn.h>
#include <android/log.h>
#include <GLES2/gl2.h>
#include <nsTArray.h>
#include "AndroidGraphicBuffer.h"
#include "AndroidBridge.h"
#include "GLTypes.h"
#include "mozilla/Preferences.h"
#define LOG(args...) __android_log_print(ANDROID_LOG_INFO, "AndroidGraphicBuffer" , ## args)
#define EGL_NATIVE_BUFFER_ANDROID 0x3140
#define EGL_IMAGE_PRESERVED_KHR 0x30D2
typedef void *EGLContext;
typedef void *EGLDisplay;
typedef uint32_t EGLenum;
typedef int32_t EGLint;
typedef uint32_t EGLBoolean;
#define EGL_TRUE 1
#define EGL_FALSE 0
#define EGL_NONE 0x3038
#define EGL_DEFAULT_DISPLAY (void*)0
#define ANDROID_LIBUI_PATH "libui.so"
#define ANDROID_GLES_PATH "libGLESv2.so"
#define ANDROID_EGL_PATH "libEGL.so"
// Really I have no idea, but this should be big enough
#define GRAPHIC_BUFFER_SIZE 1024
enum {
/* buffer is never read in software */
GRALLOC_USAGE_SW_READ_NEVER = 0x00000000,
/* buffer is rarely read in software */
GRALLOC_USAGE_SW_READ_RARELY = 0x00000002,
/* buffer is often read in software */
GRALLOC_USAGE_SW_READ_OFTEN = 0x00000003,
/* mask for the software read values */
GRALLOC_USAGE_SW_READ_MASK = 0x0000000F,
/* buffer is never written in software */
GRALLOC_USAGE_SW_WRITE_NEVER = 0x00000000,
/* buffer is never written in software */
GRALLOC_USAGE_SW_WRITE_RARELY = 0x00000020,
/* buffer is never written in software */
GRALLOC_USAGE_SW_WRITE_OFTEN = 0x00000030,
/* mask for the software write values */
GRALLOC_USAGE_SW_WRITE_MASK = 0x000000F0,
/* buffer will be used as an OpenGL ES texture */
GRALLOC_USAGE_HW_TEXTURE = 0x00000100,
/* buffer will be used as an OpenGL ES render target */
GRALLOC_USAGE_HW_RENDER = 0x00000200,
/* buffer will be used by the 2D hardware blitter */
GRALLOC_USAGE_HW_2D = 0x00000400,
/* buffer will be used with the framebuffer device */
GRALLOC_USAGE_HW_FB = 0x00001000,
/* mask for the software usage bit-mask */
GRALLOC_USAGE_HW_MASK = 0x00001F00,
};
enum {
HAL_PIXEL_FORMAT_RGBA_8888 = 1,
HAL_PIXEL_FORMAT_RGBX_8888 = 2,
HAL_PIXEL_FORMAT_RGB_888 = 3,
HAL_PIXEL_FORMAT_RGB_565 = 4,
HAL_PIXEL_FORMAT_BGRA_8888 = 5,
HAL_PIXEL_FORMAT_RGBA_5551 = 6,
HAL_PIXEL_FORMAT_RGBA_4444 = 7,
};
typedef struct ARect {
int32_t left;
int32_t top;
int32_t right;
int32_t bottom;
} ARect;
static bool gTryRealloc = true;
static class GLFunctions
{
public:
MOZ_CONSTEXPR GLFunctions() : fGetDisplay(nullptr),
fEGLGetError(nullptr),
fCreateImageKHR(nullptr),
fDestroyImageKHR(nullptr),
fImageTargetTexture2DOES(nullptr),
fBindTexture(nullptr),
fGLGetError(nullptr),
fGraphicBufferCtor(nullptr),
fGraphicBufferDtor(nullptr),
fGraphicBufferLock(nullptr),
fGraphicBufferLockRect(nullptr),
fGraphicBufferUnlock(nullptr),
fGraphicBufferGetNativeBuffer(nullptr),
fGraphicBufferReallocate(nullptr),
mInitialized(false)
{
}
typedef EGLDisplay (* pfnGetDisplay)(void *display_id);
pfnGetDisplay fGetDisplay;
typedef EGLint (* pfnEGLGetError)(void);
pfnEGLGetError fEGLGetError;
typedef EGLImageKHR (* pfnCreateImageKHR)(EGLDisplay dpy, EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attrib_list);
pfnCreateImageKHR fCreateImageKHR;
typedef EGLBoolean (* pfnDestroyImageKHR)(EGLDisplay dpy, EGLImageKHR image);
pfnDestroyImageKHR fDestroyImageKHR;
typedef void (* pfnImageTargetTexture2DOES)(GLenum target, EGLImageKHR image);
pfnImageTargetTexture2DOES fImageTargetTexture2DOES;
typedef void (* pfnBindTexture)(GLenum target, GLuint texture);
pfnBindTexture fBindTexture;
typedef GLenum (* pfnGLGetError)();
pfnGLGetError fGLGetError;
typedef void (*pfnGraphicBufferCtor)(void*, uint32_t w, uint32_t h, uint32_t format, uint32_t usage);
pfnGraphicBufferCtor fGraphicBufferCtor;
typedef void (*pfnGraphicBufferDtor)(void*);
pfnGraphicBufferDtor fGraphicBufferDtor;
typedef int (*pfnGraphicBufferLock)(void*, uint32_t usage, unsigned char **addr);
pfnGraphicBufferLock fGraphicBufferLock;
typedef int (*pfnGraphicBufferLockRect)(void*, uint32_t usage, const ARect&, unsigned char **addr);
pfnGraphicBufferLockRect fGraphicBufferLockRect;
typedef int (*pfnGraphicBufferUnlock)(void*);
pfnGraphicBufferUnlock fGraphicBufferUnlock;
typedef void* (*pfnGraphicBufferGetNativeBuffer)(void*);
pfnGraphicBufferGetNativeBuffer fGraphicBufferGetNativeBuffer;
typedef int (*pfnGraphicBufferReallocate)(void*, uint32_t w, uint32_t h, uint32_t format);
pfnGraphicBufferReallocate fGraphicBufferReallocate;
bool EnsureInitialized()
{
if (mInitialized) {
return true;
}
void *handle = dlopen(ANDROID_EGL_PATH, RTLD_LAZY);
if (!handle) {
LOG("Couldn't load EGL library");
return false;
}
fGetDisplay = (pfnGetDisplay)dlsym(handle, "eglGetDisplay");
fEGLGetError = (pfnEGLGetError)dlsym(handle, "eglGetError");
fCreateImageKHR = (pfnCreateImageKHR)dlsym(handle, "eglCreateImageKHR");
fDestroyImageKHR = (pfnDestroyImageKHR)dlsym(handle, "eglDestroyImageKHR");
if (!fGetDisplay || !fEGLGetError || !fCreateImageKHR || !fDestroyImageKHR) {
LOG("Failed to find some EGL functions");
return false;
}
handle = dlopen(ANDROID_GLES_PATH, RTLD_LAZY);
if (!handle) {
LOG("Couldn't load GL library");
return false;
}
fImageTargetTexture2DOES = (pfnImageTargetTexture2DOES)dlsym(handle, "glEGLImageTargetTexture2DOES");
fBindTexture = (pfnBindTexture)dlsym(handle, "glBindTexture");
fGLGetError = (pfnGLGetError)dlsym(handle, "glGetError");
if (!fImageTargetTexture2DOES || !fBindTexture || !fGLGetError) {
LOG("Failed to find some GL functions");
return false;
}
handle = dlopen(ANDROID_LIBUI_PATH, RTLD_LAZY);
if (!handle) {
LOG("Couldn't load libui.so");
return false;
}
fGraphicBufferCtor = (pfnGraphicBufferCtor)dlsym(handle, "_ZN7android13GraphicBufferC1Ejjij");
fGraphicBufferDtor = (pfnGraphicBufferDtor)dlsym(handle, "_ZN7android13GraphicBufferD1Ev");
fGraphicBufferLock = (pfnGraphicBufferLock)dlsym(handle, "_ZN7android13GraphicBuffer4lockEjPPv");
fGraphicBufferLockRect = (pfnGraphicBufferLockRect)dlsym(handle, "_ZN7android13GraphicBuffer4lockEjRKNS_4RectEPPv");
fGraphicBufferUnlock = (pfnGraphicBufferUnlock)dlsym(handle, "_ZN7android13GraphicBuffer6unlockEv");
fGraphicBufferGetNativeBuffer = (pfnGraphicBufferGetNativeBuffer)dlsym(handle, "_ZNK7android13GraphicBuffer15getNativeBufferEv");
fGraphicBufferReallocate = (pfnGraphicBufferReallocate)dlsym(handle, "_ZN7android13GraphicBuffer10reallocateEjjij");
if (!fGraphicBufferCtor || !fGraphicBufferDtor || !fGraphicBufferLock ||
!fGraphicBufferUnlock || !fGraphicBufferGetNativeBuffer) {
LOG("Failed to lookup some GraphicBuffer functions");
return false;
}
mInitialized = true;
return true;
}
private:
bool mInitialized;
} sGLFunctions;
namespace mozilla {
static void clearGLError()
{
while (glGetError() != GL_NO_ERROR);
}
static bool ensureNoGLError(const char* name)
{
bool result = true;
GLuint error;
while ((error = glGetError()) != GL_NO_ERROR) {
LOG("GL error [%s]: %40x\n", name, error);
result = false;
}
return result;
}
AndroidGraphicBuffer::AndroidGraphicBuffer(uint32_t width, uint32_t height, uint32_t usage,
gfxImageFormat format) :
mWidth(width)
, mHeight(height)
, mUsage(usage)
, mFormat(format)
, mHandle(0)
, mEGLImage(0)
{
}
AndroidGraphicBuffer::~AndroidGraphicBuffer()
{
DestroyBuffer();
}
void
AndroidGraphicBuffer::DestroyBuffer()
{
/**
* XXX: eglDestroyImageKHR crashes sometimes due to refcount badness (I think)
*
* If you look at egl.cpp (https://github.com/android/platform_frameworks_base/blob/master/opengl/libagl/egl.cpp#L2002)
* you can see that eglCreateImageKHR just refs the native buffer, and eglDestroyImageKHR
* just unrefs it. Somehow the ref count gets messed up and things are already destroyed
* by the time eglDestroyImageKHR gets called. For now, at least, just not calling
* eglDestroyImageKHR should be fine since we do free the GraphicBuffer below.
*
* Bug 712716
*/
#if 0
if (mEGLImage) {
if (sGLFunctions.EnsureInitialized()) {
sGLFunctions.fDestroyImageKHR(sGLFunctions.fGetDisplay(EGL_DEFAULT_DISPLAY), mEGLImage);
mEGLImage = nullptr;
}
}
#endif
mEGLImage = nullptr;
if (mHandle) {
if (sGLFunctions.EnsureInitialized()) {
sGLFunctions.fGraphicBufferDtor(mHandle);
}
free(mHandle);
mHandle = nullptr;
}
}
bool
AndroidGraphicBuffer::EnsureBufferCreated()
{
if (!mHandle) {
mHandle = malloc(GRAPHIC_BUFFER_SIZE);
sGLFunctions.fGraphicBufferCtor(mHandle, mWidth, mHeight, GetAndroidFormat(mFormat), GetAndroidUsage(mUsage));
}
return true;
}
bool
AndroidGraphicBuffer::EnsureInitialized()
{
if (!sGLFunctions.EnsureInitialized()) {
return false;
}
EnsureBufferCreated();
return true;
}
int
AndroidGraphicBuffer::Lock(uint32_t aUsage, unsigned char **bits)
{
if (!EnsureInitialized())
return true;
return sGLFunctions.fGraphicBufferLock(mHandle, GetAndroidUsage(aUsage), bits);
}
int
AndroidGraphicBuffer::Lock(uint32_t aUsage, const nsIntRect& aRect, unsigned char **bits)
{
if (!EnsureInitialized())
return false;
ARect rect;
rect.left = aRect.x;
rect.top = aRect.y;
rect.right = aRect.x + aRect.width;
rect.bottom = aRect.y + aRect.height;
return sGLFunctions.fGraphicBufferLockRect(mHandle, GetAndroidUsage(aUsage), rect, bits);
}
int
AndroidGraphicBuffer::Unlock()
{
if (!EnsureInitialized())
return false;
return sGLFunctions.fGraphicBufferUnlock(mHandle);
}
bool
AndroidGraphicBuffer::Reallocate(uint32_t aWidth, uint32_t aHeight, gfxImageFormat aFormat)
{
if (!EnsureInitialized())
return false;
mWidth = aWidth;
mHeight = aHeight;
mFormat = aFormat;
// Sometimes GraphicBuffer::reallocate just doesn't work. In those cases we'll just allocate a brand
// new buffer. If reallocate fails once, never try it again.
if (!gTryRealloc || sGLFunctions.fGraphicBufferReallocate(mHandle, aWidth, aHeight, GetAndroidFormat(aFormat)) != 0) {
DestroyBuffer();
EnsureBufferCreated();
gTryRealloc = false;
}
return true;
}
uint32_t
AndroidGraphicBuffer::GetAndroidUsage(uint32_t aUsage)
{
uint32_t flags = 0;
if (aUsage & UsageSoftwareRead) {
flags |= GRALLOC_USAGE_SW_READ_OFTEN;
}
if (aUsage & UsageSoftwareWrite) {
flags |= GRALLOC_USAGE_SW_WRITE_OFTEN;
}
if (aUsage & UsageTexture) {
flags |= GRALLOC_USAGE_HW_TEXTURE;
}
if (aUsage & UsageTarget) {
flags |= GRALLOC_USAGE_HW_RENDER;
}
if (aUsage & Usage2D) {
flags |= GRALLOC_USAGE_HW_2D;
}
return flags;
}
uint32_t
AndroidGraphicBuffer::GetAndroidFormat(gfxImageFormat aFormat)
{
switch (aFormat) {
case gfxImageFormat::RGB24:
return HAL_PIXEL_FORMAT_RGBX_8888;
case gfxImageFormat::RGB16_565:
return HAL_PIXEL_FORMAT_RGB_565;
default:
return 0;
}
}
bool
AndroidGraphicBuffer::EnsureEGLImage()
{
if (mEGLImage)
return true;
if (!EnsureInitialized())
return false;
EGLint eglImgAttrs[] = { EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, EGL_NONE, EGL_NONE };
void* nativeBuffer = sGLFunctions.fGraphicBufferGetNativeBuffer(mHandle);
mEGLImage = sGLFunctions.fCreateImageKHR(sGLFunctions.fGetDisplay(EGL_DEFAULT_DISPLAY), EGL_NO_CONTEXT, EGL_NATIVE_BUFFER_ANDROID, (EGLClientBuffer)nativeBuffer, eglImgAttrs);
return mEGLImage != nullptr;
}
bool
AndroidGraphicBuffer::Bind()
{
if (!EnsureInitialized())
return false;
if (!EnsureEGLImage()) {
LOG("No valid EGLImage!");
return false;
}
clearGLError();
sGLFunctions.fImageTargetTexture2DOES(GL_TEXTURE_2D, mEGLImage);
return ensureNoGLError("glEGLImageTargetTexture2DOES");
}
// Build whitelist to check for board type.
static void InitWhiteList(nsTArray<nsString>& list)
{
nsString ele;
ele.AssignASCII("droid2"); // Motorola Droid 2
list.AppendElement(ele);
ele.AssignASCII("GT-I9100"); // Samsung Galaxy SII
list.AppendElement(ele);
ele.AssignASCII("herring"); // Samsung Nexus S
list.AppendElement(ele);
ele.AssignASCII("omap4sdp"); // Amazon Kindle Fire
list.AppendElement(ele);
ele.AssignASCII("SGH-I897"); // Samsung Galaxy S
list.AppendElement(ele);
ele.AssignASCII("sgh-i997"); // Samsung Infuse 4G
list.AppendElement(ele);
ele.AssignASCII("sgh-t839"); // Samsung Sidekick 4G
list.AppendElement(ele);
ele.AssignASCII("shadow"); // Motorola Droid X
list.AppendElement(ele);
ele.AssignASCII("spyder"); // Motorola Razr
list.AppendElement(ele);
ele.AssignASCII("targa"); // Motorola Droid Bionic
list.AppendElement(ele);
ele.AssignASCII("tuna"); // Galaxy Nexus
list.AppendElement(ele);
ele.AssignASCII("venus2"); // Motorla Droid Pro
list.AppendElement(ele);
}
bool
AndroidGraphicBuffer::IsBlacklisted()
{
nsAutoString board;
if (!AndroidBridge::Bridge()->GetStaticStringField("android/os/Build", "BOARD", board))
return true;
NS_ConvertUTF16toUTF8 boardUtf8(board);
if (Preferences::GetBool("direct-texture.force.enabled", false)) {
LOG("allowing board '%s' due to prefs override", boardUtf8.get());
return false;
}
if (Preferences::GetBool("direct-texture.force.disabled", false)) {
LOG("disallowing board '%s' due to prefs override", boardUtf8.get());
return true;
}
static nsTArray<nsString> sListAllowed;
if (sListAllowed.Length() == 0) {
InitWhiteList(sListAllowed);
}
int i = -1;
if ((i = sListAllowed.BinaryIndexOf(board)) >= 0) {
nsString name = sListAllowed.ElementAt(i);
LOG("allowing board '%s' based on '%s'\n", boardUtf8.get(), NS_ConvertUTF16toUTF8(name).get());
return false;
}
LOG("disallowing board: %s\n", boardUtf8.get());
return true;
}
} /* mozilla */
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