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android / platform / frameworks / base / f013e1afd1e68af5e3b868c26a653bbfb39538f8 / . / opengl / libGLES_CM / gl_wrapper.cpp
blob: 3b7f45e7fcb87da3c31c325abe17671d2ac0d669 [file] [log] [blame]
/*
** 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.
*/
#define LOG_TAG "GLLogger"
#include <ctype.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 <GLES/egl.h>
#include <cutils/log.h>
#include <cutils/atomic.h>
#include <cutils/properties.h>
#include <cutils/memory.h>
#include <utils/IMemory.h>
#include <utils/KeyedVector.h>
#include <utils/threads.h>
#include <utils/IServiceManager.h>
#include <utils/IPCThreadState.h>
#include <utils/Parcel.h>
#include <ui/EGLDisplaySurface.h>
#include <ui/ISurfaceComposer.h>
#include "gl_logger.h"
#undef NELEM
#define GL_LOGGER 0
#define USE_SLOW_BINDING 0
#define NELEM(x) (sizeof(x)/sizeof(*(x)))
#define MAX_NUMBER_OF_GL_EXTENSIONS 32
#define MAKE_CONFIG(_impl, _index) ((EGLConfig)(((_impl)<<24) | (_index)))
#define setError(_e, _r) setErrorEtc(__FUNCTION__, __LINE__, _e, _r)
// ----------------------------------------------------------------------------
namespace android {
// ----------------------------------------------------------------------------
// EGLDisplay are global, not attached to a given thread
static const unsigned int NUM_DISPLAYS = 1;
static const unsigned int IMPL_HARDWARE = 0;
static const unsigned int IMPL_SOFTWARE = 1;
static const unsigned int IMPL_HARDWARE_CONTEXT_LOST = 2;
static const unsigned int IMPL_SOFTWARE_CONTEXT_LOST = 3;
static const unsigned int IMPL_NO_CONTEXT = 4;
// ----------------------------------------------------------------------------
struct gl_hooks_t;
struct egl_connection_t
{
void volatile * dso;
gl_hooks_t * hooks;
EGLint major;
EGLint minor;
int unavailable;
};
template <int MAGIC>
struct egl_object_t
{
egl_object_t() : magic(MAGIC) { }
~egl_object_t() { magic = 0; }
bool isValid() const { return magic == MAGIC; }
private:
uint32_t magic;
};
struct egl_display_t : public egl_object_t<'_dpy'>
{
EGLDisplay dpys[2];
EGLConfig* configs[2];
EGLint numConfigs[2];
EGLint numTotalConfigs;
char const* extensionsString;
volatile int32_t refs;
struct strings_t {
char const * vendor;
char const * version;
char const * clientApi;
char const * extensions;
char const * extensions_config;
};
strings_t queryString[2];
};
struct egl_surface_t : public egl_object_t<'_srf'>
{
egl_surface_t(EGLDisplay dpy, EGLSurface surface,
NativeWindowType window, int impl, egl_connection_t const* cnx)
: dpy(dpy), surface(surface), window(window), impl(impl), cnx(cnx)
{
// NOTE: window must be incRef'ed and connected already
}
~egl_surface_t() {
if (window) {
if (window->disconnect)
window->disconnect(window);
window->decRef(window);
}
}
EGLDisplay dpy;
EGLSurface surface;
NativeWindowType window;
int impl;
egl_connection_t const* cnx;
};
struct egl_context_t : public egl_object_t<'_ctx'>
{
egl_context_t(EGLDisplay dpy, EGLContext context,
int impl, egl_connection_t const* cnx)
: dpy(dpy), context(context), read(0), draw(0), impl(impl), cnx(cnx)
{
}
EGLDisplay dpy;
EGLContext context;
EGLSurface read;
EGLSurface draw;
int impl;
egl_connection_t const* cnx;
};
struct tls_t
{
tls_t() : error(EGL_SUCCESS), ctx(0) { }
EGLint error;
EGLContext ctx;
};
// GL / EGL hooks
typedef void(*proc_t)();
struct gl_hooks_t {
struct gl_t {
#define GL_ENTRY(_r, _api, ...) _r (*_api)(__VA_ARGS__);
#include "gl_entries.cpp"
#undef GL_ENTRY
} gl;
struct egl_t {
#define EGL_ENTRY(_r, _api, ...) _r (*_api)(__VA_ARGS__);
#include "egl_entries.cpp"
#undef EGL_ENTRY
} egl;
struct gl_ext_t {
void (*extensions[MAX_NUMBER_OF_GL_EXTENSIONS])(void);
} ext;
};
static char const * const gl_names[] = {
#define GL_ENTRY(_r, _api, ...) #_api,
#include "gl_entries.cpp"
#undef GL_ENTRY
NULL
};
static char const * const egl_names[] = {
#define EGL_ENTRY(_r, _api, ...) #_api,
#include "egl_entries.cpp"
#undef EGL_ENTRY
NULL
};
static void gl_unimplemented() {
LOGE("called unimplemented OpenGL ES API");
}
// ----------------------------------------------------------------------------
static egl_connection_t gEGLImpl[2];
static egl_display_t gDisplay[NUM_DISPLAYS];
static gl_hooks_t gHooks[5];
static pthread_mutex_t gThreadLocalStorageKeyMutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_key_t gEGLThreadLocalStorageKey = -1;
// ----------------------------------------------------------------------------
#if defined(HAVE_ANDROID_OS) && !USE_SLOW_BINDING && !GL_LOGGER
#include <sys/tls.h>
// We have a dedicated TLS slot in bionic
static inline void setGlThreadSpecific(gl_hooks_t const *value) {
((uint32_t *)__get_tls())[TLS_SLOT_OPENGL_API] = (uint32_t)value;
}
static gl_hooks_t const* getGlThreadSpecific() {
gl_hooks_t const* hooks = (gl_hooks_t const *)(((unsigned const *)__get_tls())[TLS_SLOT_OPENGL_API]);
if (hooks) return hooks;
return &gHooks[IMPL_NO_CONTEXT];
}
#else
static pthread_key_t gGLWrapperKey = -1;
static inline void setGlThreadSpecific(gl_hooks_t const *value) {
pthread_setspecific(gGLWrapperKey, value);
}
static gl_hooks_t const* getGlThreadSpecific() {
gl_hooks_t const* hooks = static_cast<gl_hooks_t*>(pthread_getspecific(gGLWrapperKey));
if (hooks) return hooks;
return &gHooks[IMPL_NO_CONTEXT];
}
#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;
}
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;
}
/*****************************************************************************/
/*
* we provide our own allocators for the GPU regions, these
* allocators go through surfaceflinger
*/
static Mutex gRegionsLock;
static request_gpu_t gRegions;
static sp<ISurfaceComposer> gSurfaceManager;
ISurfaceComposer* GLES_localSurfaceManager = 0;
const sp<ISurfaceComposer>& getSurfaceFlinger()
{
Mutex::Autolock _l(gRegionsLock);
/*
* There is a little bit of voodoo magic here. We want to access
* surfaceflinger for allocating GPU regions, however, when we are
* running as part of surfaceflinger, we want to bypass the
* service manager because surfaceflinger might not be registered yet.
* SurfaceFlinger will populate "GLES_localSurfaceManager" with its
* own address, so we can just use that.
*/
if (gSurfaceManager == 0) {
if (GLES_localSurfaceManager) {
// we're running in SurfaceFlinger's context
gSurfaceManager = GLES_localSurfaceManager;
} else {
// we're a remote process or not part of surfaceflinger,
// go through the service manager
sp<IServiceManager> sm = defaultServiceManager();
if (sm != NULL) {
sp<IBinder> binder = sm->getService(String16("SurfaceFlinger"));
gSurfaceManager = interface_cast<ISurfaceComposer>(binder);
}
}
}
return gSurfaceManager;
}
class GPURevokeRequester : public BnGPUCallback
{
public:
virtual void gpuLost() {
LOGD("CONTEXT_LOST: Releasing GPU upon request from SurfaceFlinger.");
gEGLImpl[IMPL_HARDWARE].hooks = &gHooks[IMPL_HARDWARE_CONTEXT_LOST];
}
};
static sp<GPURevokeRequester> gRevokerCallback;
static request_gpu_t* gpu_acquire(void* user)
{
sp<ISurfaceComposer> server( getSurfaceFlinger() );
Mutex::Autolock _l(gRegionsLock);
if (server == NULL) {
return 0;
}
ISurfaceComposer::gpu_info_t info;
if (gRevokerCallback == 0)
gRevokerCallback = new GPURevokeRequester();
status_t err = server->requestGPU(gRevokerCallback, &info);
if (err != NO_ERROR) {
LOGD("requestGPU returned %d", err);
return 0;
}
bool failed = false;
request_gpu_t* gpu = &gRegions;
memset(gpu, 0, sizeof(*gpu));
if (info.regs != 0) {
sp<IMemoryHeap> heap(info.regs->getMemory());
if (heap != 0) {
int fd = heap->heapID();
gpu->regs.fd = fd;
gpu->regs.base = info.regs->pointer();
gpu->regs.size = info.regs->size();
gpu->regs.user = info.regs.get();
#if HAVE_ANDROID_OS
struct pmem_region region;
if (ioctl(fd, PMEM_GET_PHYS, &region) >= 0)
gpu->regs.phys = (void*)region.offset;
#endif
info.regs->incStrong(gpu);
} else {
LOGE("GPU register handle %p is invalid!", info.regs.get());
failed = true;
}
}
for (size_t i=0 ; i<info.count && !failed ; i++) {
sp<IMemory>& region(info.regions[i].region);
if (region != 0) {
sp<IMemoryHeap> heap(region->getMemory());
if (heap != 0) {
const int fd = heap->heapID();
gpu->gpu[i].fd = fd;
gpu->gpu[i].base = region->pointer();
gpu->gpu[i].size = region->size();
gpu->gpu[i].user = region.get();
gpu->gpu[i].offset = info.regions[i].reserved;
#if HAVE_ANDROID_OS
struct pmem_region reg;
if (ioctl(fd, PMEM_GET_PHYS, &reg) >= 0)
gpu->gpu[i].phys = (void*)reg.offset;
#endif
region->incStrong(gpu);
} else {
LOGE("GPU region handle [%d, %p] is invalid!", i, region.get());
failed = true;
}
}
}
if (failed) {
// something went wrong, clean up everything!
if (gpu->regs.user) {
static_cast<IMemory*>(gpu->regs.user)->decStrong(gpu);
for (size_t i=0 ; i<info.count ; i++) {
if (gpu->gpu[i].user) {
static_cast<IMemory*>(gpu->gpu[i].user)->decStrong(gpu);
}
}
}
}
gpu->count = info.count;
return gpu;
}
static int gpu_release(void*, request_gpu_t* gpu)
{
sp<IMemory> regs;
{ // scope for lock
Mutex::Autolock _l(gRegionsLock);
regs = static_cast<IMemory*>(gpu->regs.user);
gpu->regs.user = 0;
if (regs != 0) regs->decStrong(gpu);
for (int i=0 ; i<gpu->count ; i++) {
sp<IMemory> r(static_cast<IMemory*>(gpu->gpu[i].user));
gpu->gpu[i].user = 0;
if (r != 0) r->decStrong(gpu);
}
}
// there is a special transaction to relinquish the GPU
// (it will happen automatically anyway if we don't do this)
Parcel data, reply;
// NOTE: this transaction does not require an interface token
regs->asBinder()->transact(1000, data, &reply);
return 1;
}
/*****************************************************************************/
static __attribute__((noinline))
void *load_driver(const char* driver, gl_hooks_t* hooks)
{
void* dso = dlopen(driver, RTLD_NOW | RTLD_LOCAL);
LOGE_IF(!dso,
"couldn't load <%s> library (%s)",
driver, dlerror());
if (dso) {
void** curr;
char const * const * api;
gl_hooks_t::gl_t* gl = &hooks->gl;
curr = (void**)gl;
api = gl_names;
while (*api) {
void* f = dlsym(dso, *api);
//LOGD("<%s> @ 0x%p", *api, f);
if (f == NULL) {
//LOGW("<%s> not found in %s", *api, driver);
f = (void*)gl_unimplemented;
}
*curr++ = f;
api++;
}
gl_hooks_t::egl_t* egl = &hooks->egl;
curr = (void**)egl;
api = egl_names;
while (*api) {
void* f = dlsym(dso, *api);
if (f == NULL) {
//LOGW("<%s> not found in %s", *api, driver);
f = (void*)0;
}
*curr++ = f;
api++;
}
// hook this driver up with surfaceflinger if needed
register_gpu_t register_gpu =
(register_gpu_t)dlsym(dso, "oem_register_gpu");
if (register_gpu != NULL) {
if (getSurfaceFlinger() != 0) {
register_gpu(dso, gpu_acquire, gpu_release);
}
}
}
return dso;
}
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 (key > sortedArray[mid]) {
first = mid + 1;
} else if (key < sortedArray[mid]) {
last = mid - 1;
} else {
return mid;
}
}
return -1;
}
static EGLint configToUniqueId(egl_display_t const* dp, int i, int index)
{
// NOTE: this mapping works only if we have no more than two EGLimpl
return (i>0 ? dp->numConfigs[0] : 0) + index;
}
static void uniqueIdToConfig(egl_display_t const* dp, EGLint configId,
int& i, int& index)
{
// NOTE: this mapping works only if we have no more than two EGLimpl
size_t numConfigs = dp->numConfigs[0];
i = configId / numConfigs;
index = configId % numConfigs;
}
static int cmp_configs(const void* a, const void *b)
{
EGLConfig c0 = *(EGLConfig const *)a;
EGLConfig c1 = *(EGLConfig const *)b;
return c0<c1 ? -1 : (c0>c1 ? 1 : 0);
}
static char const * const gVendorString = "Android";
static char const * const gVersionString = "1.3 Android META-EGL";
static char const * const gClientApiString = "OpenGL ES";
struct extention_map_t {
const char* name;
void (*address)(void);
};
static const extention_map_t gExtentionMap[] = {
{ "eglSwapRectangleANDROID", (void(*)())&eglSwapRectangleANDROID },
{ "eglQueryStringConfigANDROID", (void(*)())&eglQueryStringConfigANDROID },
};
static extention_map_t gGLExtentionMap[MAX_NUMBER_OF_GL_EXTENSIONS];
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;
}
// ----------------------------------------------------------------------------
}; // namespace android
// ----------------------------------------------------------------------------
using namespace android;
// ----------------------------------------------------------------------------
// extensions for the framework
// ----------------------------------------------------------------------------
void glColorPointerBounds(GLint size, GLenum type, GLsizei stride,
const GLvoid *ptr, GLsizei count) {
glColorPointer(size, type, stride, ptr);
}
void glNormalPointerBounds(GLenum type, GLsizei stride,
const GLvoid *pointer, GLsizei count) {
glNormalPointer(type, stride, pointer);
}
void glTexCoordPointerBounds(GLint size, GLenum type,
GLsizei stride, const GLvoid *pointer, GLsizei count) {
glTexCoordPointer(size, type, stride, pointer);
}
void glVertexPointerBounds(GLint size, GLenum type,
GLsizei stride, const GLvoid *pointer, GLsizei count) {
glVertexPointer(size, type, stride, pointer);
}
// ----------------------------------------------------------------------------
// Actual GL wrappers
// ----------------------------------------------------------------------------
#if __OPTIMIZE__ && defined(__arm__) && !defined(__thumb__) && !USE_SLOW_BINDING && !GL_LOGGER
#define API_ENTRY(_api) __attribute__((naked)) _api
#define CALL_GL_API(_api, ...) \
asm volatile( \
"mov r12, #0xFFFF0FFF \n" \
"ldr r12, [r12, #-15] \n" \
"ldr r12, [r12, %[tls]] \n" \
"cmp r12, #0 \n" \
"ldrne pc, [r12, %[api]] \n" \
"bx lr \n" \
: \
: [tls] "J"(TLS_SLOT_OPENGL_API*4), \
[api] "J"(__builtin_offsetof(gl_hooks_t, gl._api)) \
: \
);
#define CALL_GL_API_RETURN(_api, ...) \
CALL_GL_API(_api, __VA_ARGS__) \
return 0; // placate gcc's warnings. never reached.
#else
#define API_ENTRY(_api) _api
#if GL_LOGGER
#define CALL_GL_API(_api, ...) \
gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; \
log_##_api(__VA_ARGS__); \
_c->_api(__VA_ARGS__);
#define CALL_GL_API_RETURN(_api, ...) \
gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; \
log_##_api(__VA_ARGS__); \
return _c->_api(__VA_ARGS__)
#else
#define CALL_GL_API(_api, ...) \
gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; \
_c->_api(__VA_ARGS__);
#define CALL_GL_API_RETURN(_api, ...) \
gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; \
return _c->_api(__VA_ARGS__)
#endif
#endif
#include "gl_api.cpp"
#undef API_ENTRY
#undef CALL_GL_API
#undef CALL_GL_API_RETURN
// ----------------------------------------------------------------------------
namespace android {
// ----------------------------------------------------------------------------
static int gl_context_lost() {
setGlThreadSpecific(&gHooks[IMPL_HARDWARE_CONTEXT_LOST]);
return 0;
}
static int egl_context_lost() {
setGlThreadSpecific(&gHooks[IMPL_HARDWARE_CONTEXT_LOST]);
return EGL_FALSE;
}
static EGLBoolean egl_context_lost_swap_buffers(void*, void*) {
usleep(100000); // don't use all the CPU
setGlThreadSpecific(&gHooks[IMPL_HARDWARE_CONTEXT_LOST]);
return EGL_FALSE;
}
static GLint egl_context_lost_get_error() {
return EGL_CONTEXT_LOST;
}
static int ext_context_lost() {
return 0;
}
static void gl_no_context() {
LOGE("call to OpenGL ES API with no current context");
}
static void early_egl_init(void)
{
#if !defined(HAVE_ANDROID_OS) || USE_SLOW_BINDING || GL_LOGGER
pthread_key_create(&gGLWrapperKey, NULL);
#endif
uint32_t addr = (uint32_t)((void*)gl_no_context);
android_memset32((uint32_t*)(void*)&gHooks[IMPL_NO_CONTEXT], addr, sizeof(gHooks[IMPL_NO_CONTEXT]));
setGlThreadSpecific(&gHooks[IMPL_NO_CONTEXT]);
}
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];
}
static inline
egl_surface_t* get_surface(EGLSurface surface)
{
egl_surface_t* s = (egl_surface_t *)surface;
return s;
}
static inline
egl_context_t* get_context(EGLContext context)
{
egl_context_t* c = (egl_context_t *)context;
return c;
}
static egl_connection_t* validate_display_config(
EGLDisplay dpy, EGLConfig config,
egl_display_t const*& dp, int& impl, int& index)
{
dp = get_display(dpy);
if (!dp) return setError(EGL_BAD_DISPLAY, (egl_connection_t*)NULL);
impl = uintptr_t(config)>>24;
if (uint32_t(impl) >= 2) {
return setError(EGL_BAD_CONFIG, (egl_connection_t*)NULL);
}
index = uintptr_t(config) & 0xFFFFFF;
if (index >= dp->numConfigs[impl]) {
return setError(EGL_BAD_CONFIG, (egl_connection_t*)NULL);
}
egl_connection_t* const cnx = &gEGLImpl[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)->isValid())
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
if (!ctx) // TODO: make sure context is a valid object
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
if (!get_context(ctx)->isValid())
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)->isValid())
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
if (!surface) // TODO: make sure surface is a valid object
return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (!get_surface(surface)->isValid())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
return EGL_TRUE;
}
static void add_extension(egl_display_t* dp, char const*& p, const char* ext)
{
if (!strstr(p, ext)) {
p = (char const*)realloc((void*)p, strlen(p) + 1 + strlen(ext) + 1);
strcat((char*)p, " ");
strcat((char*)p, ext);
}
if (!strstr(dp->extensionsString, ext)) {
char const*& es = dp->extensionsString;
es = (char const*)realloc((void*)es, strlen(es) + 1 + strlen(ext) + 1);
strcat((char*)es, " ");
strcat((char*)es, ext);
}
}
// ----------------------------------------------------------------------------
}; // namespace android
// ----------------------------------------------------------------------------
EGLDisplay eglGetDisplay(NativeDisplayType display)
{
if (sEarlyInitState) {
return EGL_NO_DISPLAY;
}
uint32_t index = uint32_t(display);
if (index >= NUM_DISPLAYS) {
return EGL_NO_DISPLAY;
}
EGLDisplay dpy = EGLDisplay(uintptr_t(display) + 1LU);
egl_display_t* d = &gDisplay[index];
// dynamically load all our EGL implementations for that display
// and call into the real eglGetGisplay()
egl_connection_t* cnx = &gEGLImpl[IMPL_SOFTWARE];
if (cnx->dso == 0) {
cnx->hooks = &gHooks[IMPL_SOFTWARE];
cnx->dso = load_driver("libagl.so", cnx->hooks);
}
if (cnx->dso && d->dpys[IMPL_SOFTWARE]==EGL_NO_DISPLAY) {
d->dpys[IMPL_SOFTWARE] = cnx->hooks->egl.eglGetDisplay(display);
LOGE_IF(d->dpys[IMPL_SOFTWARE]==EGL_NO_DISPLAY,
"No EGLDisplay for software EGL!");
}
cnx = &gEGLImpl[IMPL_HARDWARE];
if (cnx->dso == 0 && cnx->unavailable == 0) {
char value[PROPERTY_VALUE_MAX];
property_get("debug.egl.hw", value, "1");
if (atoi(value) != 0) {
cnx->hooks = &gHooks[IMPL_HARDWARE];
property_get("debug.egl.profiler", value, "0");
if (atoi(value) == 0) {
cnx->dso = load_driver("libhgl.so", cnx->hooks);
} else {
LOGW("Using instrumented h/w OpenGL ES library");
cnx->dso = load_driver("libhgld.so", cnx->hooks);
}
} else {
LOGD("3D hardware acceleration is disabled");
}
}
if (cnx->dso && d->dpys[IMPL_HARDWARE]==EGL_NO_DISPLAY) {
android_memset32(
(uint32_t*)(void*)&gHooks[IMPL_HARDWARE_CONTEXT_LOST].gl,
(uint32_t)((void*)gl_context_lost),
sizeof(gHooks[IMPL_HARDWARE_CONTEXT_LOST].gl));
android_memset32(
(uint32_t*)(void*)&gHooks[IMPL_HARDWARE_CONTEXT_LOST].egl,
(uint32_t)((void*)egl_context_lost),
sizeof(gHooks[IMPL_HARDWARE_CONTEXT_LOST].egl));
android_memset32(
(uint32_t*)(void*)&gHooks[IMPL_HARDWARE_CONTEXT_LOST].ext,
(uint32_t)((void*)ext_context_lost),
sizeof(gHooks[IMPL_HARDWARE_CONTEXT_LOST].ext));
gHooks[IMPL_HARDWARE_CONTEXT_LOST].egl.eglSwapBuffers =
egl_context_lost_swap_buffers;
gHooks[IMPL_HARDWARE_CONTEXT_LOST].egl.eglGetError =
egl_context_lost_get_error;
gHooks[IMPL_HARDWARE_CONTEXT_LOST].egl.eglTerminate =
gHooks[IMPL_HARDWARE].egl.eglTerminate;
d->dpys[IMPL_HARDWARE] = cnx->hooks->egl.eglGetDisplay(display);
if (d->dpys[IMPL_HARDWARE] == EGL_NO_DISPLAY) {
LOGE("h/w accelerated eglGetDisplay() failed (%s)",
egl_strerror(cnx->hooks->egl.eglGetError()));
dlclose((void*)cnx->dso);
cnx->dso = 0;
// in case of failure, we want to make sure we don't try again
// as it's expensive.
cnx->unavailable = 1;
}
}
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);
if (android_atomic_inc(&dp->refs) > 0) {
if (major != NULL) *major = 1;
if (minor != NULL) *minor = 2;
return EGL_TRUE;
}
setGlThreadSpecific(&gHooks[IMPL_NO_CONTEXT]);
// initialize each EGL and
// build our own extension string first, based on the extension we know
// and the extension supported by our client implementation
dp->extensionsString = strdup("EGL_ANDROID_query_string_config");
for (int i=0 ; i<2 ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
cnx->major = -1;
cnx->minor = -1;
if (!cnx->dso)
continue;
if (cnx->hooks->egl.eglInitialize(
dp->dpys[i], &cnx->major, &cnx->minor)) {
//LOGD("initialized %d dpy=%p, ver=%d.%d, cnx=%p",
// i, dp->dpys[i], cnx->major, cnx->minor, cnx);
// get the query-strings for this display for each implementation
dp->queryString[i].vendor =
cnx->hooks->egl.eglQueryString(dp->dpys[i], EGL_VENDOR);
dp->queryString[i].version =
cnx->hooks->egl.eglQueryString(dp->dpys[i], EGL_VERSION);
dp->queryString[i].extensions = strdup(
cnx->hooks->egl.eglQueryString(dp->dpys[i], EGL_EXTENSIONS));
dp->queryString[i].clientApi =
cnx->hooks->egl.eglQueryString(dp->dpys[i], EGL_CLIENT_APIS);
// Dynamically insert extensions we know about
if (cnx->hooks->egl.eglSwapRectangleANDROID)
add_extension(dp, dp->queryString[i].extensions,
"EGL_ANDROID_swap_rectangle");
if (cnx->hooks->egl.eglQueryStringConfigANDROID)
add_extension(dp, dp->queryString[i].extensions,
"EGL_ANDROID_query_string_config");
} else {
LOGD("%d: eglInitialize() failed (%s)",
i, egl_strerror(cnx->hooks->egl.eglGetError()));
}
}
// Build the extension list that depends on the current config.
// It is the intersection of our extension list and the
// underlying EGL's extensions list
EGLBoolean res = EGL_FALSE;
for (int i=0 ; i<2 ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso && cnx->major>=0 && cnx->minor>=0) {
char const* const their_extensions = dp->queryString[i].extensions;
char* our_extensions = strdup(dp->extensionsString);
char* const our_extensions_org = our_extensions;
char* extensions_config = (char*)calloc(strlen(our_extensions)+2, 1);
char* p;
do {
p = strchr(our_extensions, ' ');
if (p) *p++ = 0;
else p = strchr(our_extensions, 0);
if (strstr(their_extensions, our_extensions)) {
strcat(extensions_config, our_extensions);
strcat(extensions_config, " ");
}
our_extensions = p;
} while (*p);
free((void*)our_extensions_org);
// remove the trailing white space
if (extensions_config[0] != 0) {
size_t l = strlen(extensions_config) - 1; // new size
extensions_config[l] = 0; // remove the trailing white space
extensions_config = (char*)realloc(extensions_config, l+1);
} else {
extensions_config = (char*)realloc(extensions_config, 1);
}
dp->queryString[i].extensions_config = extensions_config;
EGLint n;
if (cnx->hooks->egl.eglGetConfigs(dp->dpys[i], 0, 0, &n)) {
dp->configs[i] = (EGLConfig*)malloc(sizeof(EGLConfig)*n);
if (dp->configs[i]) {
if (cnx->hooks->egl.eglGetConfigs(
dp->dpys[i], dp->configs[i], n, &dp->numConfigs[i]))
{
// sort the configurations so we can do binary searches
qsort( dp->configs[i],
dp->numConfigs[i],
sizeof(EGLConfig), cmp_configs);
dp->numTotalConfigs += n;
res = EGL_TRUE;
}
}
}
}
}
if (res == EGL_TRUE) {
if (major != NULL) *major = 1;
if (minor != NULL) *minor = 2;
return EGL_TRUE;
}
return setError(EGL_NOT_INITIALIZED, EGL_FALSE);
}
EGLBoolean eglTerminate(EGLDisplay dpy)
{
egl_display_t* const dp = get_display(dpy);
if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
if (android_atomic_dec(&dp->refs) != 1)
return EGL_TRUE;
EGLBoolean res = EGL_FALSE;
for (int i=0 ; i<2 ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
cnx->hooks->egl.eglTerminate(dp->dpys[i]);
/* REVISIT: it's unclear what to do if eglTerminate() fails,
* on one end we shouldn't care, on the other end if it fails
* it might not be safe to call dlclose() (there could be some
* threads around). */
free(dp->configs[i]);
free((void*)dp->queryString[i].extensions_config);
free((void*)dp->queryString[i].extensions);
dp->numConfigs[i] = 0;
dp->dpys[i] = EGL_NO_DISPLAY;
dlclose((void*)cnx->dso);
cnx->dso = 0;
res = EGL_TRUE;
}
}
free((void*)dp->extensionsString);
dp->extensionsString = 0;
dp->numTotalConfigs = 0;
clearTLS();
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 (int j=0 ; j<2 ; j++) {
for (int i=0 ; i<dp->numConfigs[j] && config_size ; i++) {
*configs++ = MAKE_CONFIG(j, 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 (configs == 0) {
*num_config = 0;
return EGL_TRUE;
}
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;
while ((attr=attrib_list[size])) {
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
int i, index;
EGLint& configId(new_list[patch_index+1]);
uniqueIdToConfig(dp, configId, i, index);
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
cnx->hooks->egl.eglGetConfigAttrib(
dp->dpys[i], dp->configs[i][index],
EGL_CONFIG_ID, &configId);
// 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->hooks->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->hooks->egl.eglChooseConfig(
dp->dpys[i], 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).
configs[0] = MAKE_CONFIG(i, index);
*num_config = 1;
}
}
free(const_cast<EGLint *>(attrib_list));
return res;
}
for (int i=0 ; i<2 ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
if (cnx->hooks->egl.eglChooseConfig(
dp->dpys[i], attrib_list, configs, config_size, &n)) {
// now we need to convert these client EGLConfig to our
// internal EGLConfig format. This is done in O(n log n).
for (int j=0 ; j<n ; j++) {
int index = binarySearch<EGLConfig>(
dp->configs[i], 0, dp->numConfigs[i]-1, configs[j]);
if (index >= 0) {
configs[j] = MAKE_CONFIG(i, 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;
int i=0, index=0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp, i, index);
if (!cnx) return EGL_FALSE;
if (attribute == EGL_CONFIG_ID) {
// EGL_CONFIG_IDs must be unique, just use the order of the selected
// EGLConfig.
*value = configToUniqueId(dp, i, index);
return EGL_TRUE;
}
return cnx->hooks->egl.eglGetConfigAttrib(
dp->dpys[i], dp->configs[i][index], attribute, value);
}
// ----------------------------------------------------------------------------
// surfaces
// ----------------------------------------------------------------------------
EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config,
NativeWindowType window,
const EGLint *attrib_list)
{
egl_display_t const* dp = 0;
int i=0, index=0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp, i, index);
if (cnx) {
// window must be connected upon calling underlying
// eglCreateWindowSurface
if (window) {
window->incRef(window);
if (window->connect)
window->connect(window);
}
EGLSurface surface = cnx->hooks->egl.eglCreateWindowSurface(
dp->dpys[i], dp->configs[i][index], window, attrib_list);
if (surface != EGL_NO_SURFACE) {
egl_surface_t* s = new egl_surface_t(dpy, surface, window, i, cnx);
return s;
}
// something went wrong, disconnect and free window
// (will disconnect() automatically)
if (window) {
window->decRef(window);
}
}
return EGL_NO_SURFACE;
}
EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config,
NativePixmapType pixmap,
const EGLint *attrib_list)
{
egl_display_t const* dp = 0;
int i=0, index=0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp, i, index);
if (cnx) {
EGLSurface surface = cnx->hooks->egl.eglCreatePixmapSurface(
dp->dpys[i], dp->configs[i][index], pixmap, attrib_list);
if (surface != EGL_NO_SURFACE) {
egl_surface_t* s = new egl_surface_t(dpy, surface, NULL, i, cnx);
return s;
}
}
return EGL_NO_SURFACE;
}
EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config,
const EGLint *attrib_list)
{
egl_display_t const* dp = 0;
int i=0, index=0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp, i, index);
if (cnx) {
EGLSurface surface = cnx->hooks->egl.eglCreatePbufferSurface(
dp->dpys[i], dp->configs[i][index], attrib_list);
if (surface != EGL_NO_SURFACE) {
egl_surface_t* s = new egl_surface_t(dpy, surface, NULL, i, cnx);
return s;
}
}
return EGL_NO_SURFACE;
}
EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface surface)
{
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 = s->cnx->hooks->egl.eglDestroySurface(
dp->dpys[s->impl], s->surface);
delete s;
return result;
}
EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface surface,
EGLint attribute, EGLint *value)
{
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->hooks->egl.eglQuerySurface(
dp->dpys[s->impl], s->surface, attribute, value);
}
// ----------------------------------------------------------------------------
// contextes
// ----------------------------------------------------------------------------
EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config,
EGLContext share_list, const EGLint *attrib_list)
{
egl_display_t const* dp = 0;
int i=0, index=0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp, i, index);
if (cnx) {
EGLContext context = cnx->hooks->egl.eglCreateContext(
dp->dpys[i], dp->configs[i][index], share_list, attrib_list);
if (context != EGL_NO_CONTEXT) {
egl_context_t* c = new egl_context_t(dpy, context, i, cnx);
return c;
}
}
return EGL_NO_CONTEXT;
}
EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
{
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->hooks->egl.eglDestroyContext(
dp->dpys[c->impl], c->context);
delete c;
return result;
}
EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw,
EGLSurface read, EGLContext ctx)
{
egl_display_t const * const dp = get_display(dpy);
if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
if (read == EGL_NO_SURFACE && draw == EGL_NO_SURFACE &&
ctx == EGL_NO_CONTEXT)
{
EGLBoolean result = EGL_TRUE;
ctx = getContext();
if (ctx) {
egl_context_t * const c = get_context(ctx);
result = c->cnx->hooks->egl.eglMakeCurrent(dp->dpys[c->impl], 0, 0, 0);
if (result == EGL_TRUE) {
setGlThreadSpecific(&gHooks[IMPL_NO_CONTEXT]);
setContext(EGL_NO_CONTEXT);
}
}
return result;
}
if (!validate_display_context(dpy, ctx))
return EGL_FALSE;
egl_context_t * const c = get_context(ctx);
if (draw != EGL_NO_SURFACE) {
egl_surface_t const * d = get_surface(draw);
if (!d) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (d->impl != c->impl)
return setError(EGL_BAD_MATCH, EGL_FALSE);
draw = d->surface;
}
if (read != EGL_NO_SURFACE) {
egl_surface_t const * r = get_surface(read);
if (!r) return setError(EGL_BAD_SURFACE, EGL_FALSE);
if (r->impl != c->impl)
return setError(EGL_BAD_MATCH, EGL_FALSE);
read = r->surface;
}
EGLBoolean result = c->cnx->hooks->egl.eglMakeCurrent(
dp->dpys[c->impl], draw, read, c->context);
if (result == EGL_TRUE) {
setGlThreadSpecific(c->cnx->hooks);
setContext(ctx);
c->read = read;
c->draw = draw;
}
return result;
}
EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx,
EGLint attribute, EGLint *value)
{
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);
return c->cnx->hooks->egl.eglQueryContext(
dp->dpys[c->impl], c->context, attribute, value);
}
EGLContext eglGetCurrentContext(void)
{
EGLContext ctx = getContext();
return ctx;
}
EGLSurface eglGetCurrentSurface(EGLint readdraw)
{
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)
{
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)
{
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->hooks->egl.eglWaitGL();
}
return res;
}
EGLBoolean eglWaitNative(EGLint engine)
{
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->hooks->egl.eglWaitNative(engine);
}
return res;
}
EGLint eglGetError(void)
{
EGLint result = EGL_SUCCESS;
for (int i=0 ; i<2 ; i++) {
EGLint err = EGL_SUCCESS;
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso)
err = cnx->hooks->egl.eglGetError();
if (err!=EGL_SUCCESS && result==EGL_SUCCESS)
result = err;
}
if (result == EGL_SUCCESS)
result = getError();
return result;
}
void (*eglGetProcAddress(const char *procname))()
{
void (*addr)();
addr = findProcAddress(procname, gExtentionMap, NELEM(gExtentionMap));
if (addr) return addr;
return NULL; // TODO: finish implementation below
addr = findProcAddress(procname, gGLExtentionMap, NELEM(gGLExtentionMap));
if (addr) return addr;
addr = 0;
int slot = -1;
for (int i=0 ; i<2 ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
if (cnx->hooks->egl.eglGetProcAddress) {
addr = cnx->hooks->egl.eglGetProcAddress(procname);
if (addr) {
if (slot == -1) {
slot = 0; // XXX: find free slot
if (slot == -1) {
addr = 0;
break;
}
}
cnx->hooks->ext.extensions[slot] = addr;
}
}
}
}
if (slot >= 0) {
addr = 0; // XXX: address of stub 'slot'
gGLExtentionMap[slot].name = strdup(procname);
gGLExtentionMap[slot].address = addr;
}
return addr;
/*
* TODO: For OpenGL ES extensions, we must generate a stub
* that looks like
* mov r12, #0xFFFF0FFF
* ldr r12, [r12, #-15]
* ldr r12, [r12, #TLS_SLOT_OPENGL_API*4]
* mov r12, [r12, #api_offset]
* ldrne pc, r12
* mov pc, #unsupported_extension
*
* and write the address of the extension in *all*
* gl_hooks_t::gl_ext_t at offset "api_offset" from gl_hooks_t
*
*/
}
EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw)
{
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->hooks->egl.eglSwapBuffers(dp->dpys[s->impl], s->surface);
}
EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface,
NativePixmapType target)
{
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->hooks->egl.eglCopyBuffers(
dp->dpys[s->impl], 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 dp->extensionsString;
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)
{
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->hooks->egl.eglSurfaceAttrib) {
return s->cnx->hooks->egl.eglSurfaceAttrib(
dp->dpys[s->impl], s->surface, attribute, value);
}
return setError(EGL_BAD_SURFACE, EGL_FALSE);
}
EGLBoolean eglBindTexImage(
EGLDisplay dpy, EGLSurface surface, EGLint buffer)
{
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->hooks->egl.eglBindTexImage) {
return s->cnx->hooks->egl.eglBindTexImage(
dp->dpys[s->impl], s->surface, buffer);
}
return setError(EGL_BAD_SURFACE, EGL_FALSE);
}
EGLBoolean eglReleaseTexImage(
EGLDisplay dpy, EGLSurface surface, EGLint buffer)
{
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->hooks->egl.eglReleaseTexImage) {
return s->cnx->hooks->egl.eglReleaseTexImage(
dp->dpys[s->impl], 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<2 ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
if (cnx->hooks->egl.eglSwapInterval) {
if (cnx->hooks->egl.eglSwapInterval(dp->dpys[i], interval) == EGL_FALSE) {
res = EGL_FALSE;
}
}
}
}
return res;
}
// ----------------------------------------------------------------------------
// EGL 1.2
// ----------------------------------------------------------------------------
EGLBoolean eglWaitClient(void)
{
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->hooks->egl.eglWaitClient) {
res = cnx->hooks->egl.eglWaitClient();
} else {
res = cnx->hooks->egl.eglWaitGL();
}
}
return res;
}
EGLBoolean eglBindAPI(EGLenum api)
{
// bind this API on all EGLs
EGLBoolean res = EGL_TRUE;
for (int i=0 ; i<2 ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
if (cnx->hooks->egl.eglBindAPI) {
if (cnx->hooks->egl.eglBindAPI(api) == EGL_FALSE) {
res = EGL_FALSE;
}
}
}
}
return res;
}
EGLenum eglQueryAPI(void)
{
for (int i=0 ; i<2 ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
if (cnx->hooks->egl.eglQueryAPI) {
// the first one we find is okay, because they all
// should be the same
return cnx->hooks->egl.eglQueryAPI();
}
}
}
// or, it can only be OpenGL ES
return EGL_OPENGL_ES_API;
}
EGLBoolean eglReleaseThread(void)
{
for (int i=0 ; i<2 ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
if (cnx->hooks->egl.eglReleaseThread) {
cnx->hooks->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;
int i=0, index=0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp, i, index);
if (!cnx) return EGL_FALSE;
if (cnx->hooks->egl.eglCreatePbufferFromClientBuffer) {
return cnx->hooks->egl.eglCreatePbufferFromClientBuffer(
dp->dpys[i], buftype, buffer, dp->configs[i][index], attrib_list);
}
return setError(EGL_BAD_CONFIG, EGL_NO_SURFACE);
}
// ----------------------------------------------------------------------------
// Android extentions
// ----------------------------------------------------------------------------
EGLBoolean eglSwapRectangleANDROID(
EGLDisplay dpy, EGLSurface draw,
EGLint l, EGLint t, EGLint w, EGLint h)
{
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->hooks->egl.eglSwapRectangleANDROID) {
return s->cnx->hooks->egl.eglSwapRectangleANDROID(
dp->dpys[s->impl], s->surface, l, t, w, h);
}
return setError(EGL_BAD_SURFACE, EGL_FALSE);
}
const char* eglQueryStringConfigANDROID(
EGLDisplay dpy, EGLConfig config, EGLint name)
{
egl_display_t const* dp = 0;
int i=0, index=0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp, i, index);
if (cnx) {
return dp->queryString[i].extensions_config;
}
return setError(EGL_BAD_PARAMETER, (const char *)0);
}