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replicant-frameworks_native/opengl/libs/EGL/egl.cpp
The Android Open Source Project 1a1b70fbfa Merge from gingerbread 
Change-Id: I31e3da083b642d5c7cf6332095fa228b840ee7bb
2011-03-29 13:54:43 -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>
#if 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"
#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_ANDROID_image_native_buffer "
"EGL_ANDROID_swap_rectangle "
;
// ----------------------------------------------------------------------------
class egl_object_t {
static SortedVector<egl_object_t*> sObjects;
static Mutex sLock;
volatile int32_t terminated;
mutable volatile int32_t count;
public:
egl_object_t() : terminated(0), count(1) {
Mutex::Autolock _l(sLock);
sObjects.add(this);
}
inline bool isAlive() const { return !terminated; }
private:
bool get() {
Mutex::Autolock _l(sLock);
if (egl_object_t::sObjects.indexOf(this) >= 0) {
android_atomic_inc(&count);
return true;
}
return false;
}
bool put() {
Mutex::Autolock _l(sLock);
if (android_atomic_dec(&count) == 1) {
sObjects.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();
}
}
};
};
SortedVector<egl_object_t*> egl_object_t::sObjects;
Mutex egl_object_t::sLock;
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;
egl_display_t() : magic('_dpy'), numTotalConfigs(0), configs(0) { }
~egl_display_t() { magic = 0; }
inline bool isValid() const { return magic == '_dpy'; }
inline bool isAlive() const { return isValid(); }
};
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)
: 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)
: dpy(dpy), context(context), config(config), read(0), draw(0), impl(impl),
cnx(cnx), version(version)
{
}
EGLDisplay dpy;
EGLContext context;
EGLConfig config;
EGLSurface read;
EGLSurface draw;
int impl;
egl_connection_t const* cnx;
int version;
};
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)
: dpy(dpy), context(context)
{
memset(images, 0, sizeof(images));
}
EGLDisplay dpy;
EGLContext context;
EGLImageKHR images[IMPL_NUM_IMPLEMENTATIONS];
};
typedef egl_surface_t::Ref SurfaceRef;
typedef egl_context_t::Ref ContextRef;
typedef egl_image_t::Ref ImageRef;
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;
// ----------------------------------------------------------------------------
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;
}
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 },
{ "glEGLImageTargetTexture2DOES",
(__eglMustCastToProperFunctionPointerType)NULL },
{ "glEGLImageTargetRenderbufferStorageOES",
(__eglMustCastToProperFunctionPointerType)NULL },
};
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
uint32_t addr = (uint32_t)((void*)gl_no_context);
android_memset32(
(uint32_t*)(void*)&gHooksNoContext,
addr,
sizeof(gHooksNoContext));
setGlThreadSpecific(&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);
}
static inline
egl_image_t* get_image(EGLImageKHR image) {
return egl_to_native_cast<egl_image_t>(image);
}
static egl_connection_t* validate_display_config(
EGLDisplay dpy, EGLConfig config,
egl_display_t const*& dp)
{
dp = get_display(dpy);
if (!dp) return setError(EGL_BAD_DISPLAY, (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)
{
if ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
if (!get_display(dpy)->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)
{
if ((uintptr_t(dpy)-1U) >= NUM_DISPLAYS)
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
if (!get_display(dpy)->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)
{
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)
{
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;
}
setGlThreadSpecific(&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.
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)
{
egl_display_t const * const dp = get_display(dpy);
if (!dp) return setError(EGL_BAD_DISPLAY, 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)
{
egl_display_t const * const dp = get_display(dpy);
if (!dp) return setError(EGL_BAD_DISPLAY, 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)
{
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)
{
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;
// 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)
{
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)
{
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)
{
SurfaceRef _s(surface);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, surface))
return EGL_FALSE;
egl_display_t const * const dp = get_display(dpy);
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)
{
SurfaceRef _s(surface);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, surface))
return EGL_FALSE;
egl_display_t const * const dp = get_display(dpy);
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)
{
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)
{
ContextRef _c(ctx);
if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE);
if (!validate_display_context(dpy, ctx))
return EGL_FALSE;
egl_display_t const * const dp = get_display(dpy);
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)
{
// get a reference to the object passed in
ContextRef _c(ctx);
SurfaceRef _d(draw);
SurfaceRef _r(read);
// validate the display and the context (if not EGL_NO_CONTEXT)
egl_display_t const * const dp = get_display(dpy);
if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
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) {
setGlThreadSpecific(c->cnx->hooks[c->version]);
setContext(ctx);
_c.acquire();
_r.acquire();
_d.acquire();
c->read = read;
c->draw = draw;
} else {
setGlThreadSpecific(&gHooksNoContext);
setContext(EGL_NO_CONTEXT);
}
}
return result;
}
EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx,
EGLint attribute, EGLint *value)
{
ContextRef _c(ctx);
if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE);
if (!validate_display_context(dpy, ctx))
return EGL_FALSE;
egl_display_t const * const dp = get_display(dpy);
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.
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.
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.
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.
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.
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;
}
__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.
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] =
cnx->egl.eglGetProcAddress(procname);
}
}
if (found) {
addr = gExtensionForwarders[slot];
gGLExtentionMap.add(name, addr);
gGLExtentionSlot++;
}
}
pthread_mutex_unlock(&gInitDriverMutex);
return addr;
}
EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw)
{
SurfaceRef _s(draw);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, draw))
return EGL_FALSE;
egl_display_t const * const dp = get_display(dpy);
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)
{
SurfaceRef _s(surface);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, surface))
return EGL_FALSE;
egl_display_t const * const dp = get_display(dpy);
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)
{
egl_display_t const * const dp = get_display(dpy);
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)
{
SurfaceRef _s(surface);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, surface))
return EGL_FALSE;
egl_display_t const * const dp = get_display(dpy);
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)
{
SurfaceRef _s(surface);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, surface))
return EGL_FALSE;
egl_display_t const * const dp = get_display(dpy);
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)
{
SurfaceRef _s(surface);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, surface))
return EGL_FALSE;
egl_display_t const * const dp = get_display(dpy);
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)
{
egl_display_t * const dp = get_display(dpy);
if (!dp) return setError(EGL_BAD_DISPLAY, 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)
{
// 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)
{
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)
{
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)
{
// 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)
{
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)
{
SurfaceRef _s(surface);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, surface))
return EGL_FALSE;
egl_display_t const * const dp = get_display(dpy);
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)
{
SurfaceRef _s(surface);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, surface))
return EGL_FALSE;
egl_display_t const * const dp = get_display(dpy);
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)
{
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_display_t const * const dp = get_display(dpy);
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
egl_display_t const * const dp = get_display(dpy);
if (dp == 0) {
return setError(EGL_BAD_DISPLAY, EGL_NO_IMAGE_KHR);
}
/* 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)
{
egl_display_t const * const dp = get_display(dpy);
if (dp == 0) {
return setError(EGL_BAD_DISPLAY, 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;
}
// ----------------------------------------------------------------------------
// ANDROID extensions
// ----------------------------------------------------------------------------
EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw,
EGLint left, EGLint top, EGLint width, EGLint height)
{
SurfaceRef _s(draw);
if (!_s.get()) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!validate_display_surface(dpy, draw))
return EGL_FALSE;
egl_display_t const * const dp = get_display(dpy);
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);
}
EGLBoolean eglDestroySyncKHR(EGLDisplay dpy, EGLSyncKHR sync) { return 0; }
EGLSyncKHR eglCreateSyncKHR(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list) { return 0; }
EGLint eglClientWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags, EGLTimeKHR timeout) { return 0; }
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