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11c01568c3
replicant-frameworks_native/opengl/libs/EGL/egl.cpp
Eric Hassold 11c01568c3 Make objects collection a member of egl_display object 
Move EGL objects (contexts, surfaces, ...) collection from global
static into EGL display object. Since EGL implementation currently
supports only one display, this doesn't change current logic. This
aims at preparing for next coming changes in eglTerminate() to
support per-display cleanup.

Bug: 4152714
Change-Id: I5e424781b89c3c275f9922f943463d5f6b1f6bc6
2011-03-25 14:37:19 -07:00

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/*
** Copyright 2007, 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.
*/
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <dlfcn.h>
#include <sys/ioctl.h>
#ifdef HAVE_ANDROID_OS
#include <linux/android_pmem.h>
#endif
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES/gl.h>
#include <GLES/glext.h>
#include <cutils/log.h>
#include <cutils/atomic.h>
#include <cutils/properties.h>
#include <cutils/memory.h>
#include <utils/SortedVector.h>
#include <utils/KeyedVector.h>
#include <utils/String8.h>
#include <ui/egl/android_natives.h>
#include "hooks.h"
#include "egl_impl.h"
#include "Loader.h"
#include "glesv2dbg.h"
#define setError(_e, _r) setErrorEtc(__FUNCTION__, __LINE__, _e, _r)
// ----------------------------------------------------------------------------
namespace android {
// ----------------------------------------------------------------------------
#define VERSION_MAJOR 1
#define VERSION_MINOR 4
static char const * const gVendorString = "Android";
static char const * const gVersionString = "1.4 Android META-EGL";
static char const * const gClientApiString = "OpenGL ES";
static char const * const gExtensionString =
"EGL_KHR_image "
"EGL_KHR_image_base "
"EGL_KHR_image_pixmap "
"EGL_KHR_gl_texture_2D_image "
"EGL_KHR_gl_texture_cubemap_image "
"EGL_KHR_gl_renderbuffer_image "
"EGL_KHR_fence_sync "
"EGL_ANDROID_image_native_buffer "
"EGL_ANDROID_swap_rectangle "
;
// ----------------------------------------------------------------------------
class egl_object_t;
struct egl_display_t;
static egl_display_t* get_display(EGLDisplay dpy);
struct egl_config_t {
egl_config_t() {}
egl_config_t(int impl, EGLConfig config)
: impl(impl), config(config), configId(0), implConfigId(0) { }
int impl; // the implementation this config is for
EGLConfig config; // the implementation's EGLConfig
EGLint configId; // our CONFIG_ID
EGLint implConfigId; // the implementation's CONFIG_ID
inline bool operator < (const egl_config_t& rhs) const {
if (impl < rhs.impl) return true;
if (impl > rhs.impl) return false;
return config < rhs.config;
}
};
struct egl_display_t {
enum { NOT_INITIALIZED, INITIALIZED, TERMINATED };
struct strings_t {
char const * vendor;
char const * version;
char const * clientApi;
char const * extensions;
};
struct DisplayImpl {
DisplayImpl() : dpy(EGL_NO_DISPLAY), config(0),
state(NOT_INITIALIZED), numConfigs(0) { }
EGLDisplay dpy;
EGLConfig* config;
EGLint state;
EGLint numConfigs;
strings_t queryString;
};
uint32_t magic;
DisplayImpl disp[IMPL_NUM_IMPLEMENTATIONS];
EGLint numTotalConfigs;
egl_config_t* configs;
uint32_t refs;
Mutex lock;
SortedVector<egl_object_t*> objects;
egl_display_t() : magic('_dpy'), numTotalConfigs(0), configs(0) { }
~egl_display_t() { magic = 0; }
inline bool isReady() const { return (refs > 0); }
inline bool isValid() const { return magic == '_dpy'; }
inline bool isAlive() const { return isValid(); }
};
class egl_object_t {
egl_display_t *display;
volatile int32_t terminated;
mutable volatile int32_t count;
public:
egl_object_t(EGLDisplay dpy) : display(get_display(dpy)), terminated(0), count(1) {
Mutex::Autolock _l(display->lock);
display->objects.add(this);
}
inline bool isAlive() const { return !terminated; }
private:
bool get() {
Mutex::Autolock _l(display->lock);
if (display->objects.indexOf(this) >= 0) {
android_atomic_inc(&count);
return true;
}
return false;
}
bool put() {
Mutex::Autolock _l(display->lock);
if (android_atomic_dec(&count) == 1) {
display->objects.remove(this);
return true;
}
return false;
}
public:
template <typename N, typename T>
struct LocalRef {
N* ref;
LocalRef(T o) : ref(0) {
N* native = reinterpret_cast<N*>(o);
if (o && native->get()) {
ref = native;
}
}
~LocalRef() {
if (ref && ref->put()) {
delete ref;
}
}
inline N* get() {
return ref;
}
void acquire() const {
if (ref) {
android_atomic_inc(&ref->count);
}
}
void release() const {
if (ref) {
int32_t c = android_atomic_dec(&ref->count);
// ref->count cannot be 1 prior atomic_dec because we have
// a reference, and if we have one, it means there was
// already one before us.
LOGE_IF(c==1, "refcount is now 0 in release()");
}
}
void terminate() {
if (ref) {
ref->terminated = 1;
release();
}
}
};
};
struct egl_surface_t : public egl_object_t
{
typedef egl_object_t::LocalRef<egl_surface_t, EGLSurface> Ref;
egl_surface_t(EGLDisplay dpy, EGLConfig config, EGLNativeWindowType win,
EGLSurface surface, int impl, egl_connection_t const* cnx)
: egl_object_t(dpy), dpy(dpy), surface(surface), config(config), win(win), impl(impl), cnx(cnx) {
}
~egl_surface_t() {
}
EGLDisplay dpy;
EGLSurface surface;
EGLConfig config;
sp<ANativeWindow> win;
int impl;
egl_connection_t const* cnx;
};
struct egl_context_t : public egl_object_t
{
typedef egl_object_t::LocalRef<egl_context_t, EGLContext> Ref;
egl_context_t(EGLDisplay dpy, EGLContext context, EGLConfig config,
int impl, egl_connection_t const* cnx, int version)
: egl_object_t(dpy), dpy(dpy), context(context), config(config), read(0), draw(0),
impl(impl), cnx(cnx), version(version), dbg(NULL)
{
}
~egl_context_t()
{
if (dbg)
DestroyDbgContext(dbg);
dbg = NULL;
}
EGLDisplay dpy;
EGLContext context;
EGLConfig config;
EGLSurface read;
EGLSurface draw;
int impl;
egl_connection_t const* cnx;
int version;
DbgContext * dbg;
};
struct egl_image_t : public egl_object_t
{
typedef egl_object_t::LocalRef<egl_image_t, EGLImageKHR> Ref;
egl_image_t(EGLDisplay dpy, EGLContext context)
: egl_object_t(dpy), dpy(dpy), context(context)
{
memset(images, 0, sizeof(images));
}
EGLDisplay dpy;
EGLContext context;
EGLImageKHR images[IMPL_NUM_IMPLEMENTATIONS];
};
struct egl_sync_t : public egl_object_t
{
typedef egl_object_t::LocalRef<egl_sync_t, EGLSyncKHR> Ref;
egl_sync_t(EGLDisplay dpy, EGLContext context, EGLSyncKHR sync)
: egl_object_t(dpy), dpy(dpy), context(context), sync(sync)
{
}
EGLDisplay dpy;
EGLContext context;
EGLSyncKHR sync;
};
typedef egl_surface_t::Ref SurfaceRef;
typedef egl_context_t::Ref ContextRef;
typedef egl_image_t::Ref ImageRef;
typedef egl_sync_t::Ref SyncRef;
struct tls_t
{
tls_t() : error(EGL_SUCCESS), ctx(0), logCallWithNoContext(EGL_TRUE) { }
EGLint error;
EGLContext ctx;
EGLBoolean logCallWithNoContext;
};
// ----------------------------------------------------------------------------
static egl_connection_t gEGLImpl[IMPL_NUM_IMPLEMENTATIONS];
static egl_display_t gDisplay[NUM_DISPLAYS];
static pthread_mutex_t gThreadLocalStorageKeyMutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_key_t gEGLThreadLocalStorageKey = -1;
// ----------------------------------------------------------------------------
EGLAPI gl_hooks_t gHooks[2][IMPL_NUM_IMPLEMENTATIONS];
EGLAPI gl_hooks_t gHooksNoContext;
EGLAPI pthread_key_t gGLWrapperKey = -1;
#if EGL_TRACE
EGLAPI pthread_key_t gGLTraceKey = -1;
// ----------------------------------------------------------------------------
static int gEGLTraceLevel, gEGLDebugLevel;
static int gEGLApplicationTraceLevel;
extern EGLAPI gl_hooks_t gHooksTrace, gHooksDebug;
static inline void setGlTraceThreadSpecific(gl_hooks_t const *value) {
pthread_setspecific(gGLTraceKey, value);
}
gl_hooks_t const* getGLTraceThreadSpecific() {
return static_cast<gl_hooks_t*>(pthread_getspecific(gGLTraceKey));
}
static void initEglTraceLevel() {
char value[PROPERTY_VALUE_MAX];
property_get("debug.egl.trace", value, "0");
int propertyLevel = atoi(value);
int applicationLevel = gEGLApplicationTraceLevel;
gEGLTraceLevel = propertyLevel > applicationLevel ? propertyLevel : applicationLevel;
property_get("debug.egl.debug_proc", value, "");
long pid = getpid();
char procPath[128] = {};
sprintf(procPath, "/proc/%ld/cmdline", pid);
FILE * file = fopen(procPath, "r");
if (file)
{
char cmdline[256] = {};
if (fgets(cmdline, sizeof(cmdline) - 1, file))
{
if (!strcmp(value, cmdline))
gEGLDebugLevel = 1;
}
fclose(file);
}
if (gEGLDebugLevel > 0)
{
property_get("debug.egl.debug_port", value, "5039");
StartDebugServer(atoi(value));
}
}
static void setGLHooksThreadSpecific(gl_hooks_t const *value) {
if (gEGLTraceLevel > 0) {
setGlTraceThreadSpecific(value);
setGlThreadSpecific(&gHooksTrace);
} else if (gEGLDebugLevel > 0 && value != &gHooksNoContext) {
setGlTraceThreadSpecific(value);
setGlThreadSpecific(&gHooksDebug);
} else {
setGlThreadSpecific(value);
}
}
/*
* Global entry point to allow applications to modify their own trace level.
* The effective trace level is the max of this level and the value of debug.egl.trace.
*/
extern "C"
void setGLTraceLevel(int level) {
gEGLApplicationTraceLevel = level;
}
#else
static inline void setGLHooksThreadSpecific(gl_hooks_t const *value) {
setGlThreadSpecific(value);
}
#endif
// ----------------------------------------------------------------------------
static __attribute__((noinline))
const char *egl_strerror(EGLint err)
{
switch (err){
case EGL_SUCCESS: return "EGL_SUCCESS";
case EGL_NOT_INITIALIZED: return "EGL_NOT_INITIALIZED";
case EGL_BAD_ACCESS: return "EGL_BAD_ACCESS";
case EGL_BAD_ALLOC: return "EGL_BAD_ALLOC";
case EGL_BAD_ATTRIBUTE: return "EGL_BAD_ATTRIBUTE";
case EGL_BAD_CONFIG: return "EGL_BAD_CONFIG";
case EGL_BAD_CONTEXT: return "EGL_BAD_CONTEXT";
case EGL_BAD_CURRENT_SURFACE: return "EGL_BAD_CURRENT_SURFACE";
case EGL_BAD_DISPLAY: return "EGL_BAD_DISPLAY";
case EGL_BAD_MATCH: return "EGL_BAD_MATCH";
case EGL_BAD_NATIVE_PIXMAP: return "EGL_BAD_NATIVE_PIXMAP";
case EGL_BAD_NATIVE_WINDOW: return "EGL_BAD_NATIVE_WINDOW";
case EGL_BAD_PARAMETER: return "EGL_BAD_PARAMETER";
case EGL_BAD_SURFACE: return "EGL_BAD_SURFACE";
case EGL_CONTEXT_LOST: return "EGL_CONTEXT_LOST";
default: return "UNKNOWN";
}
}
static __attribute__((noinline))
void clearTLS() {
if (gEGLThreadLocalStorageKey != -1) {
tls_t* tls = (tls_t*)pthread_getspecific(gEGLThreadLocalStorageKey);
if (tls) {
delete tls;
pthread_setspecific(gEGLThreadLocalStorageKey, 0);
}
}
}
static tls_t* getTLS()
{
tls_t* tls = (tls_t*)pthread_getspecific(gEGLThreadLocalStorageKey);
if (tls == 0) {
tls = new tls_t;
pthread_setspecific(gEGLThreadLocalStorageKey, tls);
}
return tls;
}
static inline void clearError() {
// This must clear the error from all the underlying EGL implementations as
// well as the EGL wrapper layer.
eglGetError();
}
template<typename T>
static __attribute__((noinline))
T setErrorEtc(const char* caller, int line, EGLint error, T returnValue) {
if (gEGLThreadLocalStorageKey == -1) {
pthread_mutex_lock(&gThreadLocalStorageKeyMutex);
if (gEGLThreadLocalStorageKey == -1)
pthread_key_create(&gEGLThreadLocalStorageKey, NULL);
pthread_mutex_unlock(&gThreadLocalStorageKeyMutex);
}
tls_t* tls = getTLS();
if (tls->error != error) {
LOGE("%s:%d error %x (%s)", caller, line, error, egl_strerror(error));
tls->error = error;
}
return returnValue;
}
static __attribute__((noinline))
GLint getError() {
if (gEGLThreadLocalStorageKey == -1)
return EGL_SUCCESS;
tls_t* tls = (tls_t*)pthread_getspecific(gEGLThreadLocalStorageKey);
if (!tls) return EGL_SUCCESS;
GLint error = tls->error;
tls->error = EGL_SUCCESS;
return error;
}
static __attribute__((noinline))
void setContext(EGLContext ctx) {
if (gEGLThreadLocalStorageKey == -1) {
pthread_mutex_lock(&gThreadLocalStorageKeyMutex);
if (gEGLThreadLocalStorageKey == -1)
pthread_key_create(&gEGLThreadLocalStorageKey, NULL);
pthread_mutex_unlock(&gThreadLocalStorageKeyMutex);
}
tls_t* tls = getTLS();
tls->ctx = ctx;
}
static __attribute__((noinline))
EGLContext getContext() {
if (gEGLThreadLocalStorageKey == -1)
return EGL_NO_CONTEXT;
tls_t* tls = (tls_t*)pthread_getspecific(gEGLThreadLocalStorageKey);
if (!tls) return EGL_NO_CONTEXT;
return tls->ctx;
}
/*****************************************************************************/
template<typename T>
static __attribute__((noinline))
int binarySearch(
T const sortedArray[], int first, int last, T key)
{
while (first <= last) {
int mid = (first + last) / 2;
if (sortedArray[mid] < key) {
first = mid + 1;
} else if (key < sortedArray[mid]) {
last = mid - 1;
} else {
return mid;
}
}
return -1;
}
static int cmp_configs(const void* a, const void *b)
{
const egl_config_t& c0 = *(egl_config_t const *)a;
const egl_config_t& c1 = *(egl_config_t const *)b;
return c0<c1 ? -1 : (c1<c0 ? 1 : 0);
}
struct extention_map_t {
const char* name;
__eglMustCastToProperFunctionPointerType address;
};
static const extention_map_t gExtentionMap[] = {
{ "eglLockSurfaceKHR",
(__eglMustCastToProperFunctionPointerType)&eglLockSurfaceKHR },
{ "eglUnlockSurfaceKHR",
(__eglMustCastToProperFunctionPointerType)&eglUnlockSurfaceKHR },
{ "eglCreateImageKHR",
(__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR },
{ "eglDestroyImageKHR",
(__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR },
{ "eglSetSwapRectangleANDROID",
(__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID },
};
extern const __eglMustCastToProperFunctionPointerType gExtensionForwarders[MAX_NUMBER_OF_GL_EXTENSIONS];
// accesses protected by gInitDriverMutex
static DefaultKeyedVector<String8, __eglMustCastToProperFunctionPointerType> gGLExtentionMap;
static int gGLExtentionSlot = 0;
static void(*findProcAddress(const char* name,
const extention_map_t* map, size_t n))()
{
for (uint32_t i=0 ; i<n ; i++) {
if (!strcmp(name, map[i].name)) {
return map[i].address;
}
}
return NULL;
}
// ----------------------------------------------------------------------------
static int gl_no_context() {
tls_t* tls = getTLS();
if (tls->logCallWithNoContext == EGL_TRUE) {
tls->logCallWithNoContext = EGL_FALSE;
LOGE("call to OpenGL ES API with no current context "
"(logged once per thread)");
}
return 0;
}
static void early_egl_init(void)
{
#if !USE_FAST_TLS_KEY
pthread_key_create(&gGLWrapperKey, NULL);
#endif
#if EGL_TRACE
pthread_key_create(&gGLTraceKey, NULL);
initEglTraceLevel();
#endif
uint32_t addr = (uint32_t)((void*)gl_no_context);
android_memset32(
(uint32_t*)(void*)&gHooksNoContext,
addr,
sizeof(gHooksNoContext));
setGLHooksThreadSpecific(&gHooksNoContext);
}
static pthread_once_t once_control = PTHREAD_ONCE_INIT;
static int sEarlyInitState = pthread_once(&once_control, &early_egl_init);
static inline
egl_display_t* get_display(EGLDisplay dpy)
{
uintptr_t index = uintptr_t(dpy)-1U;
return (index >= NUM_DISPLAYS) ? NULL : &gDisplay[index];
}
template<typename NATIVE, typename EGL>
static inline NATIVE* egl_to_native_cast(EGL arg) {
return reinterpret_cast<NATIVE*>(arg);
}
static inline
egl_surface_t* get_surface(EGLSurface surface) {
return egl_to_native_cast<egl_surface_t>(surface);
}
static inline
egl_context_t* get_context(EGLContext context) {
return egl_to_native_cast<egl_context_t>(context);
}
DbgContext * getDbgContextThreadSpecific()
{
return get_context(getContext())->dbg;
}
static inline
egl_image_t* get_image(EGLImageKHR image) {
return egl_to_native_cast<egl_image_t>(image);
}
static inline
egl_sync_t* get_sync(EGLSyncKHR sync) {
return egl_to_native_cast<egl_sync_t>(sync);
}
static inline
egl_display_t* validate_display(EGLDisplay dpy)
{
egl_display_t * const dp = get_display(dpy);
if (!dp) return setError(EGL_BAD_DISPLAY, (egl_display_t*)NULL);
if (!dp->isReady()) return setError(EGL_NOT_INITIALIZED, (egl_display_t*)NULL);
return dp;
}
static egl_connection_t* validate_display_config(
EGLDisplay dpy, EGLConfig config,
egl_display_t const*& dp)
{
dp = validate_display(dpy);
if (!dp) return (egl_connection_t*) NULL;
if (intptr_t(config) >= dp->numTotalConfigs) {
return setError(EGL_BAD_CONFIG, (egl_connection_t*)NULL);
}
egl_connection_t* const cnx = &gEGLImpl[dp->configs[intptr_t(config)].impl];
if (cnx->dso == 0) {
return setError(EGL_BAD_CONFIG, (egl_connection_t*)NULL);
}
return cnx;
}
static EGLBoolean validate_display_context(EGLDisplay dpy, EGLContext ctx)
{
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
if (!dp->isAlive())
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
if (!get_context(ctx)->isAlive())
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
return EGL_TRUE;
}
static EGLBoolean validate_display_surface(EGLDisplay dpy, EGLSurface surface)
{
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
if (!dp->isAlive())
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
if (!get_surface(surface)->isAlive())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
return EGL_TRUE;
}
EGLImageKHR egl_get_image_for_current_context(EGLImageKHR image)
{
ImageRef _i(image);
if (!_i.get()) return EGL_NO_IMAGE_KHR;
EGLContext context = getContext();
if (context == EGL_NO_CONTEXT || image == EGL_NO_IMAGE_KHR)
return EGL_NO_IMAGE_KHR;
egl_context_t const * const c = get_context(context);
if (!c->isAlive())
return EGL_NO_IMAGE_KHR;
egl_image_t const * const i = get_image(image);
return i->images[c->impl];
}
// ----------------------------------------------------------------------------
// this mutex protects:
// d->disp[]
// egl_init_drivers_locked()
//
static pthread_mutex_t gInitDriverMutex = PTHREAD_MUTEX_INITIALIZER;
EGLBoolean egl_init_drivers_locked()
{
if (sEarlyInitState) {
// initialized by static ctor. should be set here.
return EGL_FALSE;
}
// get our driver loader
Loader& loader(Loader::getInstance());
// dynamically load all our EGL implementations for all displays
// and retrieve the corresponding EGLDisplay
// if that fails, don't use this driver.
// TODO: currently we only deal with EGL_DEFAULT_DISPLAY
egl_connection_t* cnx;
egl_display_t* d = &gDisplay[0];
cnx = &gEGLImpl[IMPL_SOFTWARE];
if (cnx->dso == 0) {
cnx->hooks[GLESv1_INDEX] = &gHooks[GLESv1_INDEX][IMPL_SOFTWARE];
cnx->hooks[GLESv2_INDEX] = &gHooks[GLESv2_INDEX][IMPL_SOFTWARE];
cnx->dso = loader.open(EGL_DEFAULT_DISPLAY, 0, cnx);
if (cnx->dso) {
EGLDisplay dpy = cnx->egl.eglGetDisplay(EGL_DEFAULT_DISPLAY);
LOGE_IF(dpy==EGL_NO_DISPLAY, "No EGLDisplay for software EGL!");
d->disp[IMPL_SOFTWARE].dpy = dpy;
if (dpy == EGL_NO_DISPLAY) {
loader.close(cnx->dso);
cnx->dso = NULL;
}
}
}
cnx = &gEGLImpl[IMPL_HARDWARE];
if (cnx->dso == 0) {
char value[PROPERTY_VALUE_MAX];
property_get("debug.egl.hw", value, "1");
if (atoi(value) != 0) {
cnx->hooks[GLESv1_INDEX] = &gHooks[GLESv1_INDEX][IMPL_HARDWARE];
cnx->hooks[GLESv2_INDEX] = &gHooks[GLESv2_INDEX][IMPL_HARDWARE];
cnx->dso = loader.open(EGL_DEFAULT_DISPLAY, 1, cnx);
if (cnx->dso) {
EGLDisplay dpy = cnx->egl.eglGetDisplay(EGL_DEFAULT_DISPLAY);
LOGE_IF(dpy==EGL_NO_DISPLAY, "No EGLDisplay for hardware EGL!");
d->disp[IMPL_HARDWARE].dpy = dpy;
if (dpy == EGL_NO_DISPLAY) {
loader.close(cnx->dso);
cnx->dso = NULL;
}
}
} else {
LOGD("3D hardware acceleration is disabled");
}
}
if (!gEGLImpl[IMPL_SOFTWARE].dso && !gEGLImpl[IMPL_HARDWARE].dso) {
return EGL_FALSE;
}
return EGL_TRUE;
}
EGLBoolean egl_init_drivers()
{
EGLBoolean res;
pthread_mutex_lock(&gInitDriverMutex);
res = egl_init_drivers_locked();
pthread_mutex_unlock(&gInitDriverMutex);
return res;
}
// ----------------------------------------------------------------------------
}; // namespace android
// ----------------------------------------------------------------------------
using namespace android;
EGLDisplay eglGetDisplay(NativeDisplayType display)
{
clearError();
uint32_t index = uint32_t(display);
if (index >= NUM_DISPLAYS) {
return setError(EGL_BAD_PARAMETER, EGL_NO_DISPLAY);
}
if (egl_init_drivers() == EGL_FALSE) {
return setError(EGL_BAD_PARAMETER, EGL_NO_DISPLAY);
}
EGLDisplay dpy = EGLDisplay(uintptr_t(display) + 1LU);
return dpy;
}
// ----------------------------------------------------------------------------
// Initialization
// ----------------------------------------------------------------------------
EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
{
clearError();
egl_display_t * const dp = get_display(dpy);
if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
Mutex::Autolock _l(dp->lock);
if (dp->refs > 0) {
if (major != NULL) *major = VERSION_MAJOR;
if (minor != NULL) *minor = VERSION_MINOR;
dp->refs++;
return EGL_TRUE;
}
#if EGL_TRACE
// Called both at early_init time and at this time. (Early_init is pre-zygote, so
// the information from that call may be stale.)
initEglTraceLevel();
#endif
setGLHooksThreadSpecific(&gHooksNoContext);
// initialize each EGL and
// build our own extension string first, based on the extension we know
// and the extension supported by our client implementation
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
cnx->major = -1;
cnx->minor = -1;
if (!cnx->dso)
continue;
#if defined(ADRENO130)
#warning "Adreno-130 eglInitialize() workaround"
/*
* The ADRENO 130 driver returns a different EGLDisplay each time
* eglGetDisplay() is called, but also makes the EGLDisplay invalid
* after eglTerminate() has been called, so that eglInitialize()
* cannot be called again. Therefore, we need to make sure to call
* eglGetDisplay() before calling eglInitialize();
*/
if (i == IMPL_HARDWARE) {
dp->disp[i].dpy =
cnx->egl.eglGetDisplay(EGL_DEFAULT_DISPLAY);
}
#endif
EGLDisplay idpy = dp->disp[i].dpy;
if (cnx->egl.eglInitialize(idpy, &cnx->major, &cnx->minor)) {
//LOGD("initialized %d dpy=%p, ver=%d.%d, cnx=%p",
// i, idpy, cnx->major, cnx->minor, cnx);
// display is now initialized
dp->disp[i].state = egl_display_t::INITIALIZED;
// get the query-strings for this display for each implementation
dp->disp[i].queryString.vendor =
cnx->egl.eglQueryString(idpy, EGL_VENDOR);
dp->disp[i].queryString.version =
cnx->egl.eglQueryString(idpy, EGL_VERSION);
dp->disp[i].queryString.extensions =
cnx->egl.eglQueryString(idpy, EGL_EXTENSIONS);
dp->disp[i].queryString.clientApi =
cnx->egl.eglQueryString(idpy, EGL_CLIENT_APIS);
} else {
LOGW("%d: eglInitialize(%p) failed (%s)", i, idpy,
egl_strerror(cnx->egl.eglGetError()));
}
}
EGLBoolean res = EGL_FALSE;
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso && cnx->major>=0 && cnx->minor>=0) {
EGLint n;
if (cnx->egl.eglGetConfigs(dp->disp[i].dpy, 0, 0, &n)) {
dp->disp[i].config = (EGLConfig*)malloc(sizeof(EGLConfig)*n);
if (dp->disp[i].config) {
if (cnx->egl.eglGetConfigs(
dp->disp[i].dpy, dp->disp[i].config, n,
&dp->disp[i].numConfigs))
{
dp->numTotalConfigs += n;
res = EGL_TRUE;
}
}
}
}
}
if (res == EGL_TRUE) {
dp->configs = new egl_config_t[ dp->numTotalConfigs ];
for (int i=0, k=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso && cnx->major>=0 && cnx->minor>=0) {
for (int j=0 ; j<dp->disp[i].numConfigs ; j++) {
dp->configs[k].impl = i;
dp->configs[k].config = dp->disp[i].config[j];
dp->configs[k].configId = k + 1; // CONFIG_ID start at 1
// store the implementation's CONFIG_ID
cnx->egl.eglGetConfigAttrib(
dp->disp[i].dpy,
dp->disp[i].config[j],
EGL_CONFIG_ID,
&dp->configs[k].implConfigId);
k++;
}
}
}
// sort our configurations so we can do binary-searches
qsort( dp->configs,
dp->numTotalConfigs,
sizeof(egl_config_t), cmp_configs);
dp->refs++;
if (major != NULL) *major = VERSION_MAJOR;
if (minor != NULL) *minor = VERSION_MINOR;
return EGL_TRUE;
}
return setError(EGL_NOT_INITIALIZED, EGL_FALSE);
}
EGLBoolean eglTerminate(EGLDisplay dpy)
{
// NOTE: don't unload the drivers b/c some APIs can be called
// after eglTerminate() has been called. eglTerminate() only
// terminates an EGLDisplay, not a EGL itself.
clearError();
egl_display_t* const dp = get_display(dpy);
if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
Mutex::Autolock _l(dp->lock);
if (dp->refs == 0) {
return setError(EGL_NOT_INITIALIZED, EGL_FALSE);
}
// this is specific to Android, display termination is ref-counted.
if (dp->refs > 1) {
dp->refs--;
return EGL_TRUE;
}
EGLBoolean res = EGL_FALSE;
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso && dp->disp[i].state == egl_display_t::INITIALIZED) {
if (cnx->egl.eglTerminate(dp->disp[i].dpy) == EGL_FALSE) {
LOGW("%d: eglTerminate(%p) failed (%s)", i, dp->disp[i].dpy,
egl_strerror(cnx->egl.eglGetError()));
}
// REVISIT: it's unclear what to do if eglTerminate() fails
free(dp->disp[i].config);
dp->disp[i].numConfigs = 0;
dp->disp[i].config = 0;
dp->disp[i].state = egl_display_t::TERMINATED;
res = EGL_TRUE;
}
}
// TODO: all egl_object_t should be marked for termination
dp->refs--;
dp->numTotalConfigs = 0;
delete [] dp->configs;
return res;
}
// ----------------------------------------------------------------------------
// configuration
// ----------------------------------------------------------------------------
EGLBoolean eglGetConfigs( EGLDisplay dpy,
EGLConfig *configs,
EGLint config_size, EGLint *num_config)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
GLint numConfigs = dp->numTotalConfigs;
if (!configs) {
*num_config = numConfigs;
return EGL_TRUE;
}
GLint n = 0;
for (intptr_t i=0 ; i<dp->numTotalConfigs && config_size ; i++) {
*configs++ = EGLConfig(i);
config_size--;
n++;
}
*num_config = n;
return EGL_TRUE;
}
EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list,
EGLConfig *configs, EGLint config_size,
EGLint *num_config)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
if (num_config==0) {
return setError(EGL_BAD_PARAMETER, EGL_FALSE);
}
EGLint n;
EGLBoolean res = EGL_FALSE;
*num_config = 0;
// It is unfortunate, but we need to remap the EGL_CONFIG_IDs,
// to do this, we have to go through the attrib_list array once
// to figure out both its size and if it contains an EGL_CONFIG_ID
// key. If so, the full array is copied and patched.
// NOTE: we assume that there can be only one occurrence
// of EGL_CONFIG_ID.
EGLint patch_index = -1;
GLint attr;
size_t size = 0;
if (attrib_list) {
while ((attr=attrib_list[size]) != EGL_NONE) {
if (attr == EGL_CONFIG_ID)
patch_index = size;
size += 2;
}
}
if (patch_index >= 0) {
size += 2; // we need copy the sentinel as well
EGLint* new_list = (EGLint*)malloc(size*sizeof(EGLint));
if (new_list == 0)
return setError(EGL_BAD_ALLOC, EGL_FALSE);
memcpy(new_list, attrib_list, size*sizeof(EGLint));
// patch the requested EGL_CONFIG_ID
bool found = false;
EGLConfig ourConfig(0);
EGLint& configId(new_list[patch_index+1]);
for (intptr_t i=0 ; i<dp->numTotalConfigs ; i++) {
if (dp->configs[i].configId == configId) {
ourConfig = EGLConfig(i);
configId = dp->configs[i].implConfigId;
found = true;
break;
}
}
egl_connection_t* const cnx = &gEGLImpl[dp->configs[intptr_t(ourConfig)].impl];
if (found && cnx->dso) {
// and switch to the new list
attrib_list = const_cast<const EGLint *>(new_list);
// At this point, the only configuration that can match is
// dp->configs[i][index], however, we don't know if it would be
// rejected because of the other attributes, so we do have to call
// cnx->egl.eglChooseConfig() -- but we don't have to loop
// through all the EGLimpl[].
// We also know we can only get a single config back, and we know
// which one.
res = cnx->egl.eglChooseConfig(
dp->disp[ dp->configs[intptr_t(ourConfig)].impl ].dpy,
attrib_list, configs, config_size, &n);
if (res && n>0) {
// n has to be 0 or 1, by construction, and we already know
// which config it will return (since there can be only one).
if (configs) {
configs[0] = ourConfig;
}
*num_config = 1;
}
}
free(const_cast<EGLint *>(attrib_list));
return res;
}
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
if (cnx->egl.eglChooseConfig(
dp->disp[i].dpy, attrib_list, configs, config_size, &n)) {
if (configs) {
// now we need to convert these client EGLConfig to our
// internal EGLConfig format.
// This is done in O(n Log(n)) time.
for (int j=0 ; j<n ; j++) {
egl_config_t key(i, configs[j]);
intptr_t index = binarySearch<egl_config_t>(
dp->configs, 0, dp->numTotalConfigs, key);
if (index >= 0) {
configs[j] = EGLConfig(index);
} else {
return setError(EGL_BAD_CONFIG, EGL_FALSE);
}
}
configs += n;
config_size -= n;
}
*num_config += n;
res = EGL_TRUE;
}
}
}
return res;
}
EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config,
EGLint attribute, EGLint *value)
{
clearError();
egl_display_t const* dp = 0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp);
if (!cnx) return EGL_FALSE;
if (attribute == EGL_CONFIG_ID) {
*value = dp->configs[intptr_t(config)].configId;
return EGL_TRUE;
}
return cnx->egl.eglGetConfigAttrib(
dp->disp[ dp->configs[intptr_t(config)].impl ].dpy,
dp->configs[intptr_t(config)].config, attribute, value);
}
// ----------------------------------------------------------------------------
// surfaces
// ----------------------------------------------------------------------------
EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config,
NativeWindowType window,
const EGLint *attrib_list)
{
clearError();
egl_display_t const* dp = 0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp);
if (cnx) {
EGLDisplay iDpy = dp->disp[ dp->configs[intptr_t(config)].impl ].dpy;
EGLConfig iConfig = dp->configs[intptr_t(config)].config;
EGLint format;
// for now fail if the window is not a Surface.
int type = -1;
ANativeWindow* anw = reinterpret_cast<ANativeWindow*>(window);
if ((anw->query(window, NATIVE_WINDOW_CONCRETE_TYPE, &type) != 0) ||
(type == NATIVE_WINDOW_SURFACE_TEXTURE_CLIENT)) {
LOGE("native window is a SurfaceTextureClient (currently "
"unsupported)");
return setError(EGL_BAD_NATIVE_WINDOW, EGL_NO_SURFACE);
}
// set the native window's buffers format to match this config
if (cnx->egl.eglGetConfigAttrib(iDpy,
iConfig, EGL_NATIVE_VISUAL_ID, &format)) {
if (format != 0) {
native_window_set_buffers_geometry(window, 0, 0, format);
}
}
EGLSurface surface = cnx->egl.eglCreateWindowSurface(
iDpy, iConfig, window, attrib_list);
if (surface != EGL_NO_SURFACE) {
egl_surface_t* s = new egl_surface_t(dpy, config, window, surface,
dp->configs[intptr_t(config)].impl, cnx);
return s;
}
}
return EGL_NO_SURFACE;
}
EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config,
NativePixmapType pixmap,
const EGLint *attrib_list)
{
clearError();
egl_display_t const* dp = 0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp);
if (cnx) {
EGLSurface surface = cnx->egl.eglCreatePixmapSurface(
dp->disp[ dp->configs[intptr_t(config)].impl ].dpy,
dp->configs[intptr_t(config)].config, pixmap, attrib_list);
if (surface != EGL_NO_SURFACE) {
egl_surface_t* s = new egl_surface_t(dpy, config, NULL, surface,
dp->configs[intptr_t(config)].impl, cnx);
return s;
}
}
return EGL_NO_SURFACE;
}
EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config,
const EGLint *attrib_list)
{
clearError();
egl_display_t const* dp = 0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp);
if (cnx) {
EGLSurface surface = cnx->egl.eglCreatePbufferSurface(
dp->disp[ dp->configs[intptr_t(config)].impl ].dpy,
dp->configs[intptr_t(config)].config, attrib_list);
if (surface != EGL_NO_SURFACE) {
egl_surface_t* s = new egl_surface_t(dpy, config, NULL, surface,
dp->configs[intptr_t(config)].impl, cnx);
return s;
}
}
return EGL_NO_SURFACE;
}
EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface surface)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(surface);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, surface))
return EGL_FALSE;
egl_surface_t * const s = get_surface(surface);
EGLBoolean result = s->cnx->egl.eglDestroySurface(
dp->disp[s->impl].dpy, s->surface);
if (result == EGL_TRUE) {
if (s->win != NULL) {
native_window_set_buffers_geometry(s->win.get(), 0, 0, 0);
}
_s.terminate();
}
return result;
}
EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface surface,
EGLint attribute, EGLint *value)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(surface);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, surface))
return EGL_FALSE;
egl_surface_t const * const s = get_surface(surface);
EGLBoolean result(EGL_TRUE);
if (attribute == EGL_CONFIG_ID) {
// We need to remap EGL_CONFIG_IDs
*value = dp->configs[intptr_t(s->config)].configId;
} else {
result = s->cnx->egl.eglQuerySurface(
dp->disp[s->impl].dpy, s->surface, attribute, value);
}
return result;
}
// ----------------------------------------------------------------------------
// Contexts
// ----------------------------------------------------------------------------
EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config,
EGLContext share_list, const EGLint *attrib_list)
{
clearError();
egl_display_t const* dp = 0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp);
if (cnx) {
if (share_list != EGL_NO_CONTEXT) {
egl_context_t* const c = get_context(share_list);
share_list = c->context;
}
EGLContext context = cnx->egl.eglCreateContext(
dp->disp[ dp->configs[intptr_t(config)].impl ].dpy,
dp->configs[intptr_t(config)].config,
share_list, attrib_list);
if (context != EGL_NO_CONTEXT) {
// figure out if it's a GLESv1 or GLESv2
int version = 0;
if (attrib_list) {
while (*attrib_list != EGL_NONE) {
GLint attr = *attrib_list++;
GLint value = *attrib_list++;
if (attr == EGL_CONTEXT_CLIENT_VERSION) {
if (value == 1) {
version = GLESv1_INDEX;
} else if (value == 2) {
version = GLESv2_INDEX;
}
}
};
}
egl_context_t* c = new egl_context_t(dpy, context, config,
dp->configs[intptr_t(config)].impl, cnx, version);
return c;
}
}
return EGL_NO_CONTEXT;
}
EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
ContextRef _c(ctx);
if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE);
if (!validate_display_context(dpy, ctx))
return EGL_FALSE;
egl_context_t * const c = get_context(ctx);
EGLBoolean result = c->cnx->egl.eglDestroyContext(
dp->disp[c->impl].dpy, c->context);
if (result == EGL_TRUE) {
_c.terminate();
}
return result;
}
static void loseCurrent(egl_context_t * cur_c)
{
if (cur_c) {
egl_surface_t * cur_r = get_surface(cur_c->read);
egl_surface_t * cur_d = get_surface(cur_c->draw);
// by construction, these are either 0 or valid (possibly terminated)
// it should be impossible for these to be invalid
ContextRef _cur_c(cur_c);
SurfaceRef _cur_r(cur_r);
SurfaceRef _cur_d(cur_d);
cur_c->read = NULL;
cur_c->draw = NULL;
_cur_c.release();
_cur_r.release();
_cur_d.release();
}
}
EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw,
EGLSurface read, EGLContext ctx)
{
clearError();
egl_display_t const * const dp = get_display(dpy);
if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
/* If ctx is not EGL_NO_CONTEXT, read is not EGL_NO_SURFACE, or draw is not
EGL_NO_SURFACE, then an EGL_NOT_INITIALIZED error is generated if dpy is
a valid but uninitialized display. */
if ( (ctx != EGL_NO_CONTEXT) || (read != EGL_NO_SURFACE) ||
(draw != EGL_NO_SURFACE) ) {
if (!dp->isReady()) return setError(EGL_NOT_INITIALIZED, EGL_FALSE);
}
// get a reference to the object passed in
ContextRef _c(ctx);
SurfaceRef _d(draw);
SurfaceRef _r(read);
// validate the context (if not EGL_NO_CONTEXT)
if ((ctx != EGL_NO_CONTEXT) && (!validate_display_context(dpy, ctx))) {
// EGL_NO_CONTEXT is valid
return EGL_FALSE;
}
// these are the underlying implementation's object
EGLContext impl_ctx = EGL_NO_CONTEXT;
EGLSurface impl_draw = EGL_NO_SURFACE;
EGLSurface impl_read = EGL_NO_SURFACE;
// these are our objects structs passed in
egl_context_t * c = NULL;
egl_surface_t const * d = NULL;
egl_surface_t const * r = NULL;
// these are the current objects structs
egl_context_t * cur_c = get_context(getContext());
if (ctx != EGL_NO_CONTEXT) {
c = get_context(ctx);
impl_ctx = c->context;
} else {
// no context given, use the implementation of the current context
if (cur_c == NULL) {
// no current context
if (draw != EGL_NO_SURFACE || read != EGL_NO_SURFACE) {
// calling eglMakeCurrent( ..., !=0, !=0, EGL_NO_CONTEXT);
return setError(EGL_BAD_MATCH, EGL_FALSE);
}
// not an error, there is just no current context.
return EGL_TRUE;
}
}
// retrieve the underlying implementation's draw EGLSurface
if (draw != EGL_NO_SURFACE) {
d = get_surface(draw);
// make sure the EGLContext and EGLSurface passed in are for
// the same driver
if (c && d->impl != c->impl)
return setError(EGL_BAD_MATCH, EGL_FALSE);
impl_draw = d->surface;
}
// retrieve the underlying implementation's read EGLSurface
if (read != EGL_NO_SURFACE) {
r = get_surface(read);
// make sure the EGLContext and EGLSurface passed in are for
// the same driver
if (c && r->impl != c->impl)
return setError(EGL_BAD_MATCH, EGL_FALSE);
impl_read = r->surface;
}
EGLBoolean result;
if (c) {
result = c->cnx->egl.eglMakeCurrent(
dp->disp[c->impl].dpy, impl_draw, impl_read, impl_ctx);
} else {
result = cur_c->cnx->egl.eglMakeCurrent(
dp->disp[cur_c->impl].dpy, impl_draw, impl_read, impl_ctx);
}
if (result == EGL_TRUE) {
loseCurrent(cur_c);
if (ctx != EGL_NO_CONTEXT) {
if (!c->dbg && gEGLDebugLevel > 0)
c->dbg = CreateDbgContext(c->version, c->cnx->hooks[c->version]);
setGLHooksThreadSpecific(c->cnx->hooks[c->version]);
setContext(ctx);
_c.acquire();
_r.acquire();
_d.acquire();
c->read = read;
c->draw = draw;
} else {
setGLHooksThreadSpecific(&gHooksNoContext);
setContext(EGL_NO_CONTEXT);
}
}
return result;
}
EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx,
EGLint attribute, EGLint *value)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
ContextRef _c(ctx);
if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE);
if (!validate_display_context(dpy, ctx))
return EGL_FALSE;
egl_context_t * const c = get_context(ctx);
EGLBoolean result(EGL_TRUE);
if (attribute == EGL_CONFIG_ID) {
*value = dp->configs[intptr_t(c->config)].configId;
} else {
// We need to remap EGL_CONFIG_IDs
result = c->cnx->egl.eglQueryContext(
dp->disp[c->impl].dpy, c->context, attribute, value);
}
return result;
}
EGLContext eglGetCurrentContext(void)
{
// could be called before eglInitialize(), but we wouldn't have a context
// then, and this function would correctly return EGL_NO_CONTEXT.
clearError();
EGLContext ctx = getContext();
return ctx;
}
EGLSurface eglGetCurrentSurface(EGLint readdraw)
{
// could be called before eglInitialize(), but we wouldn't have a context
// then, and this function would correctly return EGL_NO_SURFACE.
clearError();
EGLContext ctx = getContext();
if (ctx) {
egl_context_t const * const c = get_context(ctx);
if (!c) return setError(EGL_BAD_CONTEXT, EGL_NO_SURFACE);
switch (readdraw) {
case EGL_READ: return c->read;
case EGL_DRAW: return c->draw;
default: return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE);
}
}
return EGL_NO_SURFACE;
}
EGLDisplay eglGetCurrentDisplay(void)
{
// could be called before eglInitialize(), but we wouldn't have a context
// then, and this function would correctly return EGL_NO_DISPLAY.
clearError();
EGLContext ctx = getContext();
if (ctx) {
egl_context_t const * const c = get_context(ctx);
if (!c) return setError(EGL_BAD_CONTEXT, EGL_NO_SURFACE);
return c->dpy;
}
return EGL_NO_DISPLAY;
}
EGLBoolean eglWaitGL(void)
{
// could be called before eglInitialize(), but we wouldn't have a context
// then, and this function would return GL_TRUE, which isn't wrong.
clearError();
EGLBoolean res = EGL_TRUE;
EGLContext ctx = getContext();
if (ctx) {
egl_context_t const * const c = get_context(ctx);
if (!c) return setError(EGL_BAD_CONTEXT, EGL_FALSE);
if (uint32_t(c->impl)>=2)
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
egl_connection_t* const cnx = &gEGLImpl[c->impl];
if (!cnx->dso)
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
res = cnx->egl.eglWaitGL();
}
return res;
}
EGLBoolean eglWaitNative(EGLint engine)
{
// could be called before eglInitialize(), but we wouldn't have a context
// then, and this function would return GL_TRUE, which isn't wrong.
clearError();
EGLBoolean res = EGL_TRUE;
EGLContext ctx = getContext();
if (ctx) {
egl_context_t const * const c = get_context(ctx);
if (!c) return setError(EGL_BAD_CONTEXT, EGL_FALSE);
if (uint32_t(c->impl)>=2)
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
egl_connection_t* const cnx = &gEGLImpl[c->impl];
if (!cnx->dso)
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
res = cnx->egl.eglWaitNative(engine);
}
return res;
}
EGLint eglGetError(void)
{
EGLint result = EGL_SUCCESS;
EGLint err;
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
err = EGL_SUCCESS;
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso)
err = cnx->egl.eglGetError();
if (err!=EGL_SUCCESS && result==EGL_SUCCESS)
result = err;
}
err = getError();
if (result == EGL_SUCCESS)
result = err;
return result;
}
// Note: Similar implementations of these functions also exist in
// gl2.cpp and gl.cpp, and are used by applications that call the
// exported entry points directly.
typedef void (GL_APIENTRYP PFNGLEGLIMAGETARGETTEXTURE2DOESPROC) (GLenum target, GLeglImageOES image);
typedef void (GL_APIENTRYP PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC) (GLenum target, GLeglImageOES image);
static PFNGLEGLIMAGETARGETTEXTURE2DOESPROC glEGLImageTargetTexture2DOES_impl = NULL;
static PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC glEGLImageTargetRenderbufferStorageOES_impl = NULL;
static void glEGLImageTargetTexture2DOES_wrapper(GLenum target, GLeglImageOES image)
{
GLeglImageOES implImage =
(GLeglImageOES)egl_get_image_for_current_context((EGLImageKHR)image);
glEGLImageTargetTexture2DOES_impl(target, implImage);
}
static void glEGLImageTargetRenderbufferStorageOES_wrapper(GLenum target, GLeglImageOES image)
{
GLeglImageOES implImage =
(GLeglImageOES)egl_get_image_for_current_context((EGLImageKHR)image);
glEGLImageTargetRenderbufferStorageOES_impl(target, implImage);
}
__eglMustCastToProperFunctionPointerType eglGetProcAddress(const char *procname)
{
// eglGetProcAddress() could be the very first function called
// in which case we must make sure we've initialized ourselves, this
// happens the first time egl_get_display() is called.
clearError();
if (egl_init_drivers() == EGL_FALSE) {
setError(EGL_BAD_PARAMETER, NULL);
return NULL;
}
__eglMustCastToProperFunctionPointerType addr;
addr = findProcAddress(procname, gExtentionMap, NELEM(gExtentionMap));
if (addr) return addr;
// this protects accesses to gGLExtentionMap and gGLExtentionSlot
pthread_mutex_lock(&gInitDriverMutex);
/*
* Since eglGetProcAddress() is not associated to anything, it needs
* to return a function pointer that "works" regardless of what
* the current context is.
*
* For this reason, we return a "forwarder", a small stub that takes
* care of calling the function associated with the context
* currently bound.
*
* We first look for extensions we've already resolved, if we're seeing
* this extension for the first time, we go through all our
* implementations and call eglGetProcAddress() and record the
* result in the appropriate implementation hooks and return the
* address of the forwarder corresponding to that hook set.
*
*/
const String8 name(procname);
addr = gGLExtentionMap.valueFor(name);
const int slot = gGLExtentionSlot;
LOGE_IF(slot >= MAX_NUMBER_OF_GL_EXTENSIONS,
"no more slots for eglGetProcAddress(\"%s\")",
procname);
if (!addr && (slot < MAX_NUMBER_OF_GL_EXTENSIONS)) {
bool found = false;
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso && cnx->egl.eglGetProcAddress) {
found = true;
// Extensions are independent of the bound context
cnx->hooks[GLESv1_INDEX]->ext.extensions[slot] =
cnx->hooks[GLESv2_INDEX]->ext.extensions[slot] =
#if EGL_TRACE
gHooksDebug.ext.extensions[slot] = gHooksTrace.ext.extensions[slot] =
#endif
cnx->egl.eglGetProcAddress(procname);
}
}
if (found) {
addr = gExtensionForwarders[slot];
if (!strcmp(procname, "glEGLImageTargetTexture2DOES")) {
glEGLImageTargetTexture2DOES_impl = (PFNGLEGLIMAGETARGETTEXTURE2DOESPROC)addr;
addr = (__eglMustCastToProperFunctionPointerType)glEGLImageTargetTexture2DOES_wrapper;
}
if (!strcmp(procname, "glEGLImageTargetRenderbufferStorageOES")) {
glEGLImageTargetRenderbufferStorageOES_impl = (PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC)addr;
addr = (__eglMustCastToProperFunctionPointerType)glEGLImageTargetRenderbufferStorageOES_wrapper;
}
gGLExtentionMap.add(name, addr);
gGLExtentionSlot++;
}
}
pthread_mutex_unlock(&gInitDriverMutex);
return addr;
}
EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw)
{
EGLBoolean Debug_eglSwapBuffers(EGLDisplay dpy, EGLSurface draw);
if (gEGLDebugLevel > 0)
Debug_eglSwapBuffers(dpy, draw);
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(draw);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, draw))
return EGL_FALSE;
egl_surface_t const * const s = get_surface(draw);
return s->cnx->egl.eglSwapBuffers(dp->disp[s->impl].dpy, s->surface);
}
EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface,
NativePixmapType target)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(surface);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, surface))
return EGL_FALSE;
egl_surface_t const * const s = get_surface(surface);
return s->cnx->egl.eglCopyBuffers(
dp->disp[s->impl].dpy, s->surface, target);
}
const char* eglQueryString(EGLDisplay dpy, EGLint name)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return (const char *) NULL;
switch (name) {
case EGL_VENDOR:
return gVendorString;
case EGL_VERSION:
return gVersionString;
case EGL_EXTENSIONS:
return gExtensionString;
case EGL_CLIENT_APIS:
return gClientApiString;
}
return setError(EGL_BAD_PARAMETER, (const char *)0);
}
// ----------------------------------------------------------------------------
// EGL 1.1
// ----------------------------------------------------------------------------
EGLBoolean eglSurfaceAttrib(
EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(surface);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, surface))
return EGL_FALSE;
egl_surface_t const * const s = get_surface(surface);
if (s->cnx->egl.eglSurfaceAttrib) {
return s->cnx->egl.eglSurfaceAttrib(
dp->disp[s->impl].dpy, s->surface, attribute, value);
}
return setError(EGL_BAD_SURFACE, EGL_FALSE);
}
EGLBoolean eglBindTexImage(
EGLDisplay dpy, EGLSurface surface, EGLint buffer)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(surface);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, surface))
return EGL_FALSE;
egl_surface_t const * const s = get_surface(surface);
if (s->cnx->egl.eglBindTexImage) {
return s->cnx->egl.eglBindTexImage(
dp->disp[s->impl].dpy, s->surface, buffer);
}
return setError(EGL_BAD_SURFACE, EGL_FALSE);
}
EGLBoolean eglReleaseTexImage(
EGLDisplay dpy, EGLSurface surface, EGLint buffer)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(surface);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, surface))
return EGL_FALSE;
egl_surface_t const * const s = get_surface(surface);
if (s->cnx->egl.eglReleaseTexImage) {
return s->cnx->egl.eglReleaseTexImage(
dp->disp[s->impl].dpy, s->surface, buffer);
}
return setError(EGL_BAD_SURFACE, EGL_FALSE);
}
EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
EGLBoolean res = EGL_TRUE;
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
if (cnx->egl.eglSwapInterval) {
if (cnx->egl.eglSwapInterval(
dp->disp[i].dpy, interval) == EGL_FALSE) {
res = EGL_FALSE;
}
}
}
}
return res;
}
// ----------------------------------------------------------------------------
// EGL 1.2
// ----------------------------------------------------------------------------
EGLBoolean eglWaitClient(void)
{
clearError();
// could be called before eglInitialize(), but we wouldn't have a context
// then, and this function would return GL_TRUE, which isn't wrong.
EGLBoolean res = EGL_TRUE;
EGLContext ctx = getContext();
if (ctx) {
egl_context_t const * const c = get_context(ctx);
if (!c) return setError(EGL_BAD_CONTEXT, EGL_FALSE);
if (uint32_t(c->impl)>=2)
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
egl_connection_t* const cnx = &gEGLImpl[c->impl];
if (!cnx->dso)
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
if (cnx->egl.eglWaitClient) {
res = cnx->egl.eglWaitClient();
} else {
res = cnx->egl.eglWaitGL();
}
}
return res;
}
EGLBoolean eglBindAPI(EGLenum api)
{
clearError();
if (egl_init_drivers() == EGL_FALSE) {
return setError(EGL_BAD_PARAMETER, EGL_FALSE);
}
// bind this API on all EGLs
EGLBoolean res = EGL_TRUE;
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
if (cnx->egl.eglBindAPI) {
if (cnx->egl.eglBindAPI(api) == EGL_FALSE) {
res = EGL_FALSE;
}
}
}
}
return res;
}
EGLenum eglQueryAPI(void)
{
clearError();
if (egl_init_drivers() == EGL_FALSE) {
return setError(EGL_BAD_PARAMETER, EGL_FALSE);
}
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
if (cnx->egl.eglQueryAPI) {
// the first one we find is okay, because they all
// should be the same
return cnx->egl.eglQueryAPI();
}
}
}
// or, it can only be OpenGL ES
return EGL_OPENGL_ES_API;
}
EGLBoolean eglReleaseThread(void)
{
clearError();
// If there is context bound to the thread, release it
loseCurrent(get_context(getContext()));
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
if (cnx->egl.eglReleaseThread) {
cnx->egl.eglReleaseThread();
}
}
}
clearTLS();
return EGL_TRUE;
}
EGLSurface eglCreatePbufferFromClientBuffer(
EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer,
EGLConfig config, const EGLint *attrib_list)
{
clearError();
egl_display_t const* dp = 0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp);
if (!cnx) return EGL_FALSE;
if (cnx->egl.eglCreatePbufferFromClientBuffer) {
return cnx->egl.eglCreatePbufferFromClientBuffer(
dp->disp[ dp->configs[intptr_t(config)].impl ].dpy,
buftype, buffer,
dp->configs[intptr_t(config)].config, attrib_list);
}
return setError(EGL_BAD_CONFIG, EGL_NO_SURFACE);
}
// ----------------------------------------------------------------------------
// EGL_EGLEXT_VERSION 3
// ----------------------------------------------------------------------------
EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface,
const EGLint *attrib_list)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(surface);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, surface))
return EGL_FALSE;
egl_surface_t const * const s = get_surface(surface);
if (s->cnx->egl.eglLockSurfaceKHR) {
return s->cnx->egl.eglLockSurfaceKHR(
dp->disp[s->impl].dpy, s->surface, attrib_list);
}
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
}
EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(surface);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, surface))
return EGL_FALSE;
egl_surface_t const * const s = get_surface(surface);
if (s->cnx->egl.eglUnlockSurfaceKHR) {
return s->cnx->egl.eglUnlockSurfaceKHR(
dp->disp[s->impl].dpy, s->surface);
}
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
}
EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target,
EGLClientBuffer buffer, const EGLint *attrib_list)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_NO_IMAGE_KHR;
if (ctx != EGL_NO_CONTEXT) {
ContextRef _c(ctx);
if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR);
if (!validate_display_context(dpy, ctx))
return EGL_NO_IMAGE_KHR;
egl_context_t * const c = get_context(ctx);
// since we have an EGLContext, we know which implementation to use
EGLImageKHR image = c->cnx->egl.eglCreateImageKHR(
dp->disp[c->impl].dpy, c->context, target, buffer, attrib_list);
if (image == EGL_NO_IMAGE_KHR)
return image;
egl_image_t* result = new egl_image_t(dpy, ctx);
result->images[c->impl] = image;
return (EGLImageKHR)result;
} else {
// EGL_NO_CONTEXT is a valid parameter
/* Since we don't have a way to know which implementation to call,
* we're calling all of them. If at least one of the implementation
* succeeded, this is a success.
*/
EGLint currentError = eglGetError();
EGLImageKHR implImages[IMPL_NUM_IMPLEMENTATIONS];
bool success = false;
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
implImages[i] = EGL_NO_IMAGE_KHR;
if (cnx->dso) {
if (cnx->egl.eglCreateImageKHR) {
implImages[i] = cnx->egl.eglCreateImageKHR(
dp->disp[i].dpy, ctx, target, buffer, attrib_list);
if (implImages[i] != EGL_NO_IMAGE_KHR) {
success = true;
}
}
}
}
if (!success) {
// failure, if there was an error when we entered this function,
// the error flag must not be updated.
// Otherwise, the error is whatever happened in the implementation
// that faulted.
if (currentError != EGL_SUCCESS) {
setError(currentError, EGL_NO_IMAGE_KHR);
}
return EGL_NO_IMAGE_KHR;
} else {
// In case of success, we need to clear all error flags
// (especially those caused by the implementation that didn't
// succeed). TODO: we could avoid this if we knew this was
// a "full" success (all implementation succeeded).
eglGetError();
}
egl_image_t* result = new egl_image_t(dpy, ctx);
memcpy(result->images, implImages, sizeof(implImages));
return (EGLImageKHR)result;
}
}
EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
ImageRef _i(img);
if (!_i.get()) return setError(EGL_BAD_PARAMETER, EGL_FALSE);
egl_image_t* image = get_image(img);
bool success = false;
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (image->images[i] != EGL_NO_IMAGE_KHR) {
if (cnx->dso) {
if (cnx->egl.eglDestroyImageKHR) {
if (cnx->egl.eglDestroyImageKHR(
dp->disp[i].dpy, image->images[i])) {
success = true;
}
}
}
}
}
if (!success)
return EGL_FALSE;
_i.terminate();
return EGL_TRUE;
}
// ----------------------------------------------------------------------------
// EGL_EGLEXT_VERSION 5
// ----------------------------------------------------------------------------
EGLSyncKHR eglCreateSyncKHR(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_NO_SYNC_KHR;
EGLContext ctx = eglGetCurrentContext();
ContextRef _c(ctx);
if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_NO_SYNC_KHR);
if (!validate_display_context(dpy, ctx))
return EGL_NO_SYNC_KHR;
egl_context_t * const c = get_context(ctx);
EGLSyncKHR result = EGL_NO_SYNC_KHR;
if (c->cnx->egl.eglCreateSyncKHR) {
EGLSyncKHR sync = c->cnx->egl.eglCreateSyncKHR(
dp->disp[c->impl].dpy, type, attrib_list);
if (sync == EGL_NO_SYNC_KHR)
return sync;
result = (egl_sync_t*)new egl_sync_t(dpy, ctx, sync);
}
return (EGLSyncKHR)result;
}
EGLBoolean eglDestroySyncKHR(EGLDisplay dpy, EGLSyncKHR sync)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SyncRef _s(sync);
if (!_s.get()) return setError(EGL_BAD_PARAMETER, EGL_FALSE);
egl_sync_t* syncObject = get_sync(sync);
EGLContext ctx = syncObject->context;
ContextRef _c(ctx);
if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE);
if (!validate_display_context(dpy, ctx))
return EGL_FALSE;
EGLBoolean result = EGL_FALSE;
egl_context_t * const c = get_context(ctx);
if (c->cnx->egl.eglDestroySyncKHR) {
result = c->cnx->egl.eglDestroySyncKHR(
dp->disp[c->impl].dpy, syncObject->sync);
if (result)
_s.terminate();
}
return result;
}
EGLint eglClientWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags, EGLTimeKHR timeout)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SyncRef _s(sync);
if (!_s.get()) return setError(EGL_BAD_PARAMETER, EGL_FALSE);
egl_sync_t* syncObject = get_sync(sync);
EGLContext ctx = syncObject->context;
ContextRef _c(ctx);
if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE);
if (!validate_display_context(dpy, ctx))
return EGL_FALSE;
egl_context_t * const c = get_context(ctx);
if (c->cnx->egl.eglClientWaitSyncKHR) {
return c->cnx->egl.eglClientWaitSyncKHR(
dp->disp[c->impl].dpy, syncObject->sync, flags, timeout);
}
return EGL_FALSE;
}
EGLBoolean eglGetSyncAttribKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint attribute, EGLint *value)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SyncRef _s(sync);
if (!_s.get()) return setError(EGL_BAD_PARAMETER, EGL_FALSE);
egl_sync_t* syncObject = get_sync(sync);
EGLContext ctx = syncObject->context;
ContextRef _c(ctx);
if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE);
if (!validate_display_context(dpy, ctx))
return EGL_FALSE;
egl_context_t * const c = get_context(ctx);
if (c->cnx->egl.eglGetSyncAttribKHR) {
return c->cnx->egl.eglGetSyncAttribKHR(
dp->disp[c->impl].dpy, syncObject->sync, attribute, value);
}
return EGL_FALSE;
}
// ----------------------------------------------------------------------------
// ANDROID extensions
// ----------------------------------------------------------------------------
EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw,
EGLint left, EGLint top, EGLint width, EGLint height)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(draw);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, draw))
return EGL_FALSE;
egl_surface_t const * const s = get_surface(draw);
if (s->cnx->egl.eglSetSwapRectangleANDROID) {
return s->cnx->egl.eglSetSwapRectangleANDROID(
dp->disp[s->impl].dpy, s->surface, left, top, width, height);
}
return setError(EGL_BAD_DISPLAY, NULL);
}
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