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replicant-frameworks_native/opengl/libs/EGL/eglApi.cpp
Mathias Agopian 5b287a6ea8 eglTerminate() now actually frees up all active egl objects 
as specified by the EGL specification, terminated objects's
handles become invalid, the objects themselves are destroyed
when they're not current to some thread.

Change-Id: Id3a4a5736a5bbc3926a9ae8385d43772edb88eeb
2011-05-16 19:03:33 -07:00

1441 lines
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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 <hardware/gralloc.h>
#include <system/window.h>
#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/KeyedVector.h>
#include <utils/SortedVector.h>
#include <utils/String8.h>
#include "egl_impl.h"
#include "egl_tls.h"
#include "glesv2dbg.h"
#include "hooks.h"
#include "egl_display.h"
#include "egl_impl.h"
#include "egl_object.h"
#include "egl_tls.h"
using namespace android;
// ----------------------------------------------------------------------------
static char const * const sVendorString = "Android";
static char const * const sVersionString = "1.4 Android META-EGL";
static char const * const sClientApiString = "OpenGL ES";
static char const * const sExtensionString =
"EGL_KHR_image "
"EGL_KHR_image_base "
"EGL_KHR_image_pixmap "
"EGL_KHR_gl_texture_2D_image "
"EGL_KHR_gl_texture_cubemap_image "
"EGL_KHR_gl_renderbuffer_image "
"EGL_KHR_fence_sync "
"EGL_ANDROID_image_native_buffer "
"EGL_ANDROID_swap_rectangle "
;
struct extention_map_t {
const char* name;
__eglMustCastToProperFunctionPointerType address;
};
static const extention_map_t sExtentionMap[] = {
{ "eglLockSurfaceKHR",
(__eglMustCastToProperFunctionPointerType)&eglLockSurfaceKHR },
{ "eglUnlockSurfaceKHR",
(__eglMustCastToProperFunctionPointerType)&eglUnlockSurfaceKHR },
{ "eglCreateImageKHR",
(__eglMustCastToProperFunctionPointerType)&eglCreateImageKHR },
{ "eglDestroyImageKHR",
(__eglMustCastToProperFunctionPointerType)&eglDestroyImageKHR },
{ "eglSetSwapRectangleANDROID",
(__eglMustCastToProperFunctionPointerType)&eglSetSwapRectangleANDROID },
};
// accesses protected by sExtensionMapMutex
static DefaultKeyedVector<String8, __eglMustCastToProperFunctionPointerType> sGLExtentionMap;
static int sGLExtentionSlot = 0;
static pthread_mutex_t sExtensionMapMutex = PTHREAD_MUTEX_INITIALIZER;
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;
}
// ----------------------------------------------------------------------------
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;
}
// ----------------------------------------------------------------------------
namespace android {
extern void setGLHooksThreadSpecific(gl_hooks_t const *value);
extern EGLBoolean egl_init_drivers();
extern const __eglMustCastToProperFunctionPointerType gExtensionForwarders[MAX_NUMBER_OF_GL_EXTENSIONS];
extern int gEGLDebugLevel;
extern gl_hooks_t gHooksTrace;
extern gl_hooks_t gHooksDebug;
} // namespace android;
// ----------------------------------------------------------------------------
static inline void clearError() { egl_tls_t::clearError(); }
static inline EGLContext getContext() { return egl_tls_t::getContext(); }
// ----------------------------------------------------------------------------
EGLDisplay eglGetDisplay(EGLNativeDisplayType display)
{
clearError();
uint32_t index = uint32_t(display);
if (index >= NUM_DISPLAYS) {
return setError(EGL_BAD_PARAMETER, EGL_NO_DISPLAY);
}
if (egl_init_drivers() == EGL_FALSE) {
return setError(EGL_BAD_PARAMETER, EGL_NO_DISPLAY);
}
EGLDisplay dpy = egl_display_t::getFromNativeDisplay(display);
return dpy;
}
// ----------------------------------------------------------------------------
// Initialization
// ----------------------------------------------------------------------------
EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
{
clearError();
egl_display_t * const dp = get_display(dpy);
if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
EGLBoolean res = dp->initialize(major, minor);
return res;
}
EGLBoolean eglTerminate(EGLDisplay dpy)
{
// NOTE: don't unload the drivers b/c some APIs can be called
// after eglTerminate() has been called. eglTerminate() only
// terminates an EGLDisplay, not a EGL itself.
clearError();
egl_display_t* const dp = get_display(dpy);
if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
EGLBoolean res = dp->terminate();
return res;
}
// ----------------------------------------------------------------------------
// configuration
// ----------------------------------------------------------------------------
EGLBoolean eglGetConfigs( EGLDisplay dpy,
EGLConfig *configs,
EGLint config_size, EGLint *num_config)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
GLint numConfigs = dp->numTotalConfigs;
if (!configs) {
*num_config = numConfigs;
return EGL_TRUE;
}
GLint n = 0;
for (intptr_t i=0 ; i<dp->numTotalConfigs && config_size ; i++) {
*configs++ = EGLConfig(i);
config_size--;
n++;
}
*num_config = n;
return EGL_TRUE;
}
EGLBoolean eglChooseConfig( EGLDisplay dpy, const EGLint *attrib_list,
EGLConfig *configs, EGLint config_size,
EGLint *num_config)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
if (num_config==0) {
return setError(EGL_BAD_PARAMETER, EGL_FALSE);
}
EGLint n;
EGLBoolean res = EGL_FALSE;
*num_config = 0;
// It is unfortunate, but we need to remap the EGL_CONFIG_IDs,
// to do this, we have to go through the attrib_list array once
// to figure out both its size and if it contains an EGL_CONFIG_ID
// key. If so, the full array is copied and patched.
// NOTE: we assume that there can be only one occurrence
// of EGL_CONFIG_ID.
EGLint patch_index = -1;
GLint attr;
size_t size = 0;
if (attrib_list) {
while ((attr=attrib_list[size]) != EGL_NONE) {
if (attr == EGL_CONFIG_ID)
patch_index = size;
size += 2;
}
}
if (patch_index >= 0) {
size += 2; // we need copy the sentinel as well
EGLint* new_list = (EGLint*)malloc(size*sizeof(EGLint));
if (new_list == 0)
return setError(EGL_BAD_ALLOC, EGL_FALSE);
memcpy(new_list, attrib_list, size*sizeof(EGLint));
// patch the requested EGL_CONFIG_ID
bool found = false;
EGLConfig ourConfig(0);
EGLint& configId(new_list[patch_index+1]);
for (intptr_t i=0 ; i<dp->numTotalConfigs ; i++) {
if (dp->configs[i].configId == configId) {
ourConfig = EGLConfig(i);
configId = dp->configs[i].implConfigId;
found = true;
break;
}
}
egl_connection_t* const cnx = &gEGLImpl[dp->configs[intptr_t(ourConfig)].impl];
if (found && cnx->dso) {
// and switch to the new list
attrib_list = const_cast<const EGLint *>(new_list);
// At this point, the only configuration that can match is
// dp->configs[i][index], however, we don't know if it would be
// rejected because of the other attributes, so we do have to call
// cnx->egl.eglChooseConfig() -- but we don't have to loop
// through all the EGLimpl[].
// We also know we can only get a single config back, and we know
// which one.
res = cnx->egl.eglChooseConfig(
dp->disp[ dp->configs[intptr_t(ourConfig)].impl ].dpy,
attrib_list, configs, config_size, &n);
if (res && n>0) {
// n has to be 0 or 1, by construction, and we already know
// which config it will return (since there can be only one).
if (configs) {
configs[0] = ourConfig;
}
*num_config = 1;
}
}
free(const_cast<EGLint *>(attrib_list));
return res;
}
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
if (cnx->egl.eglChooseConfig(
dp->disp[i].dpy, attrib_list, configs, config_size, &n)) {
if (configs) {
// now we need to convert these client EGLConfig to our
// internal EGLConfig format.
// This is done in O(n Log(n)) time.
for (int j=0 ; j<n ; j++) {
egl_config_t key(i, configs[j]);
intptr_t index = binarySearch<egl_config_t>(
dp->configs, 0, dp->numTotalConfigs, key);
if (index >= 0) {
configs[j] = EGLConfig(index);
} else {
return setError(EGL_BAD_CONFIG, EGL_FALSE);
}
}
configs += n;
config_size -= n;
}
*num_config += n;
res = EGL_TRUE;
}
}
}
return res;
}
EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config,
EGLint attribute, EGLint *value)
{
clearError();
egl_display_t const* dp = 0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp);
if (!cnx) return EGL_FALSE;
if (attribute == EGL_CONFIG_ID) {
*value = dp->configs[intptr_t(config)].configId;
return EGL_TRUE;
}
return cnx->egl.eglGetConfigAttrib(
dp->disp[ dp->configs[intptr_t(config)].impl ].dpy,
dp->configs[intptr_t(config)].config, attribute, value);
}
// ----------------------------------------------------------------------------
// surfaces
// ----------------------------------------------------------------------------
EGLSurface eglCreateWindowSurface( EGLDisplay dpy, EGLConfig config,
NativeWindowType window,
const EGLint *attrib_list)
{
clearError();
egl_display_t const* dp = 0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp);
if (cnx) {
EGLDisplay iDpy = dp->disp[ dp->configs[intptr_t(config)].impl ].dpy;
EGLConfig iConfig = dp->configs[intptr_t(config)].config;
EGLint format;
// set the native window's buffers format to match this config
if (cnx->egl.eglGetConfigAttrib(iDpy,
iConfig, EGL_NATIVE_VISUAL_ID, &format)) {
if (format != 0) {
native_window_set_buffers_geometry(window, 0, 0, format);
}
}
EGLSurface surface = cnx->egl.eglCreateWindowSurface(
iDpy, iConfig, window, attrib_list);
if (surface != EGL_NO_SURFACE) {
egl_surface_t* s = new egl_surface_t(dpy, config, window, surface,
dp->configs[intptr_t(config)].impl, cnx);
return s;
}
}
return EGL_NO_SURFACE;
}
EGLSurface eglCreatePixmapSurface( EGLDisplay dpy, EGLConfig config,
NativePixmapType pixmap,
const EGLint *attrib_list)
{
clearError();
egl_display_t const* dp = 0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp);
if (cnx) {
EGLSurface surface = cnx->egl.eglCreatePixmapSurface(
dp->disp[ dp->configs[intptr_t(config)].impl ].dpy,
dp->configs[intptr_t(config)].config, pixmap, attrib_list);
if (surface != EGL_NO_SURFACE) {
egl_surface_t* s = new egl_surface_t(dpy, config, NULL, surface,
dp->configs[intptr_t(config)].impl, cnx);
return s;
}
}
return EGL_NO_SURFACE;
}
EGLSurface eglCreatePbufferSurface( EGLDisplay dpy, EGLConfig config,
const EGLint *attrib_list)
{
clearError();
egl_display_t const* dp = 0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp);
if (cnx) {
EGLSurface surface = cnx->egl.eglCreatePbufferSurface(
dp->disp[ dp->configs[intptr_t(config)].impl ].dpy,
dp->configs[intptr_t(config)].config, attrib_list);
if (surface != EGL_NO_SURFACE) {
egl_surface_t* s = new egl_surface_t(dpy, config, NULL, surface,
dp->configs[intptr_t(config)].impl, cnx);
return s;
}
}
return EGL_NO_SURFACE;
}
EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface surface)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(surface);
if (!_s.get())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
egl_surface_t * const s = get_surface(surface);
EGLBoolean result = s->cnx->egl.eglDestroySurface(
dp->disp[s->impl].dpy, s->surface);
if (result == EGL_TRUE) {
if (s->win != NULL) {
native_window_set_buffers_geometry(s->win.get(), 0, 0, 0);
}
_s.terminate();
}
return result;
}
EGLBoolean eglQuerySurface( EGLDisplay dpy, EGLSurface surface,
EGLint attribute, EGLint *value)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(surface);
if (!_s.get())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
egl_surface_t const * const s = get_surface(surface);
EGLBoolean result(EGL_TRUE);
if (attribute == EGL_CONFIG_ID) {
// We need to remap EGL_CONFIG_IDs
*value = dp->configs[intptr_t(s->config)].configId;
} else {
result = s->cnx->egl.eglQuerySurface(
dp->disp[s->impl].dpy, s->surface, attribute, value);
}
return result;
}
// ----------------------------------------------------------------------------
// Contexts
// ----------------------------------------------------------------------------
EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config,
EGLContext share_list, const EGLint *attrib_list)
{
clearError();
egl_display_t const* dp = 0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp);
if (cnx) {
if (share_list != EGL_NO_CONTEXT) {
egl_context_t* const c = get_context(share_list);
share_list = c->context;
}
EGLContext context = cnx->egl.eglCreateContext(
dp->disp[ dp->configs[intptr_t(config)].impl ].dpy,
dp->configs[intptr_t(config)].config,
share_list, attrib_list);
if (context != EGL_NO_CONTEXT) {
// figure out if it's a GLESv1 or GLESv2
int version = 0;
if (attrib_list) {
while (*attrib_list != EGL_NONE) {
GLint attr = *attrib_list++;
GLint value = *attrib_list++;
if (attr == EGL_CONTEXT_CLIENT_VERSION) {
if (value == 1) {
version = GLESv1_INDEX;
} else if (value == 2) {
version = GLESv2_INDEX;
}
}
};
}
egl_context_t* c = new egl_context_t(dpy, context, config,
dp->configs[intptr_t(config)].impl, cnx, version);
return c;
}
}
return EGL_NO_CONTEXT;
}
EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp)
return EGL_FALSE;
ContextRef _c(ctx);
if (!_c.get())
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
egl_context_t * const c = get_context(ctx);
EGLBoolean result = c->cnx->egl.eglDestroyContext(
dp->disp[c->impl].dpy, c->context);
if (result == EGL_TRUE) {
_c.terminate();
}
return result;
}
static void loseCurrent(egl_context_t * cur_c)
{
if (cur_c) {
egl_surface_t * cur_r = get_surface(cur_c->read);
egl_surface_t * cur_d = get_surface(cur_c->draw);
// by construction, these are either 0 or valid (possibly terminated)
// it should be impossible for these to be invalid
ContextRef _cur_c(cur_c);
SurfaceRef _cur_r(cur_r);
SurfaceRef _cur_d(cur_d);
cur_c->read = NULL;
cur_c->draw = NULL;
_cur_c.release();
_cur_r.release();
_cur_d.release();
}
}
EGLBoolean eglMakeCurrent( EGLDisplay dpy, EGLSurface draw,
EGLSurface read, EGLContext ctx)
{
clearError();
egl_display_t const * const dp = get_display(dpy);
if (!dp) return setError(EGL_BAD_DISPLAY, EGL_FALSE);
// If ctx is not EGL_NO_CONTEXT, read is not EGL_NO_SURFACE, or draw is not
// EGL_NO_SURFACE, then an EGL_NOT_INITIALIZED error is generated if dpy is
// a valid but uninitialized display.
if ( (ctx != EGL_NO_CONTEXT) || (read != EGL_NO_SURFACE) ||
(draw != EGL_NO_SURFACE) ) {
if (!dp->isReady()) return setError(EGL_NOT_INITIALIZED, EGL_FALSE);
}
// get a reference to the object passed in
ContextRef _c(ctx);
SurfaceRef _d(draw);
SurfaceRef _r(read);
// validate the context (if not EGL_NO_CONTEXT)
if ((ctx != EGL_NO_CONTEXT) && !_c.get()) {
// 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) {
setGLHooksThreadSpecific(c->cnx->hooks[c->version]);
egl_tls_t::setContext(ctx);
if (gEGLDebugLevel > 0) {
CreateDbgContext(c->version, c->cnx->hooks[c->version]);
}
_c.acquire();
_r.acquire();
_d.acquire();
c->read = read;
c->draw = draw;
} else {
setGLHooksThreadSpecific(&gHooksNoContext);
egl_tls_t::setContext(EGL_NO_CONTEXT);
}
}
return result;
}
EGLBoolean eglQueryContext( EGLDisplay dpy, EGLContext ctx,
EGLint attribute, EGLint *value)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
ContextRef _c(ctx);
if (!_c.get()) return setError(EGL_BAD_CONTEXT, EGL_FALSE);
egl_context_t * const c = get_context(ctx);
EGLBoolean result(EGL_TRUE);
if (attribute == EGL_CONFIG_ID) {
*value = dp->configs[intptr_t(c->config)].configId;
} else {
// We need to remap EGL_CONFIG_IDs
result = c->cnx->egl.eglQueryContext(
dp->disp[c->impl].dpy, c->context, attribute, value);
}
return result;
}
EGLContext eglGetCurrentContext(void)
{
// could be called before eglInitialize(), but we wouldn't have a context
// then, and this function would correctly return EGL_NO_CONTEXT.
clearError();
EGLContext ctx = getContext();
return ctx;
}
EGLSurface eglGetCurrentSurface(EGLint readdraw)
{
// could be called before eglInitialize(), but we wouldn't have a context
// then, and this function would correctly return EGL_NO_SURFACE.
clearError();
EGLContext ctx = getContext();
if (ctx) {
egl_context_t const * const c = get_context(ctx);
if (!c) return setError(EGL_BAD_CONTEXT, EGL_NO_SURFACE);
switch (readdraw) {
case EGL_READ: return c->read;
case EGL_DRAW: return c->draw;
default: return setError(EGL_BAD_PARAMETER, EGL_NO_SURFACE);
}
}
return EGL_NO_SURFACE;
}
EGLDisplay eglGetCurrentDisplay(void)
{
// could be called before eglInitialize(), but we wouldn't have a context
// then, and this function would correctly return EGL_NO_DISPLAY.
clearError();
EGLContext ctx = getContext();
if (ctx) {
egl_context_t const * const c = get_context(ctx);
if (!c) return setError(EGL_BAD_CONTEXT, EGL_NO_SURFACE);
return c->dpy;
}
return EGL_NO_DISPLAY;
}
EGLBoolean eglWaitGL(void)
{
// could be called before eglInitialize(), but we wouldn't have a context
// then, and this function would return GL_TRUE, which isn't wrong.
clearError();
EGLBoolean res = EGL_TRUE;
EGLContext ctx = getContext();
if (ctx) {
egl_context_t const * const c = get_context(ctx);
if (!c) return setError(EGL_BAD_CONTEXT, EGL_FALSE);
if (uint32_t(c->impl)>=2)
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
egl_connection_t* const cnx = &gEGLImpl[c->impl];
if (!cnx->dso)
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
res = cnx->egl.eglWaitGL();
}
return res;
}
EGLBoolean eglWaitNative(EGLint engine)
{
// could be called before eglInitialize(), but we wouldn't have a context
// then, and this function would return GL_TRUE, which isn't wrong.
clearError();
EGLBoolean res = EGL_TRUE;
EGLContext ctx = getContext();
if (ctx) {
egl_context_t const * const c = get_context(ctx);
if (!c) return setError(EGL_BAD_CONTEXT, EGL_FALSE);
if (uint32_t(c->impl)>=2)
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
egl_connection_t* const cnx = &gEGLImpl[c->impl];
if (!cnx->dso)
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
res = cnx->egl.eglWaitNative(engine);
}
return res;
}
EGLint eglGetError(void)
{
EGLint result = EGL_SUCCESS;
EGLint err;
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
err = EGL_SUCCESS;
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso)
err = cnx->egl.eglGetError();
if (err!=EGL_SUCCESS && result==EGL_SUCCESS)
result = err;
}
err = egl_tls_t::getError();
if (result == EGL_SUCCESS)
result = err;
return result;
}
// Note: Similar implementations of these functions also exist in
// gl2.cpp and gl.cpp, and are used by applications that call the
// exported entry points directly.
typedef void (GL_APIENTRYP PFNGLEGLIMAGETARGETTEXTURE2DOESPROC) (GLenum target, GLeglImageOES image);
typedef void (GL_APIENTRYP PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC) (GLenum target, GLeglImageOES image);
static PFNGLEGLIMAGETARGETTEXTURE2DOESPROC glEGLImageTargetTexture2DOES_impl = NULL;
static PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC glEGLImageTargetRenderbufferStorageOES_impl = NULL;
static void glEGLImageTargetTexture2DOES_wrapper(GLenum target, GLeglImageOES image)
{
GLeglImageOES implImage =
(GLeglImageOES)egl_get_image_for_current_context((EGLImageKHR)image);
glEGLImageTargetTexture2DOES_impl(target, implImage);
}
static void glEGLImageTargetRenderbufferStorageOES_wrapper(GLenum target, GLeglImageOES image)
{
GLeglImageOES implImage =
(GLeglImageOES)egl_get_image_for_current_context((EGLImageKHR)image);
glEGLImageTargetRenderbufferStorageOES_impl(target, implImage);
}
__eglMustCastToProperFunctionPointerType eglGetProcAddress(const char *procname)
{
// eglGetProcAddress() could be the very first function called
// in which case we must make sure we've initialized ourselves, this
// happens the first time egl_get_display() is called.
clearError();
if (egl_init_drivers() == EGL_FALSE) {
setError(EGL_BAD_PARAMETER, NULL);
return NULL;
}
__eglMustCastToProperFunctionPointerType addr;
addr = findProcAddress(procname, sExtentionMap, NELEM(sExtentionMap));
if (addr) return addr;
// this protects accesses to sGLExtentionMap and sGLExtentionSlot
pthread_mutex_lock(&sExtensionMapMutex);
/*
* 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 = sGLExtentionMap.valueFor(name);
const int slot = sGLExtentionSlot;
LOGE_IF(slot >= MAX_NUMBER_OF_GL_EXTENSIONS,
"no more slots for eglGetProcAddress(\"%s\")",
procname);
if (!addr && (slot < MAX_NUMBER_OF_GL_EXTENSIONS)) {
bool found = false;
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso && cnx->egl.eglGetProcAddress) {
found = true;
// Extensions are independent of the bound context
cnx->hooks[GLESv1_INDEX]->ext.extensions[slot] =
cnx->hooks[GLESv2_INDEX]->ext.extensions[slot] =
#if EGL_TRACE
gHooksDebug.ext.extensions[slot] = gHooksTrace.ext.extensions[slot] =
#endif
cnx->egl.eglGetProcAddress(procname);
}
}
if (found) {
addr = gExtensionForwarders[slot];
if (!strcmp(procname, "glEGLImageTargetTexture2DOES")) {
glEGLImageTargetTexture2DOES_impl = (PFNGLEGLIMAGETARGETTEXTURE2DOESPROC)addr;
addr = (__eglMustCastToProperFunctionPointerType)glEGLImageTargetTexture2DOES_wrapper;
}
if (!strcmp(procname, "glEGLImageTargetRenderbufferStorageOES")) {
glEGLImageTargetRenderbufferStorageOES_impl = (PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC)addr;
addr = (__eglMustCastToProperFunctionPointerType)glEGLImageTargetRenderbufferStorageOES_wrapper;
}
sGLExtentionMap.add(name, addr);
sGLExtentionSlot++;
}
}
pthread_mutex_unlock(&sExtensionMapMutex);
return addr;
}
EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw)
{
EGLBoolean Debug_eglSwapBuffers(EGLDisplay dpy, EGLSurface draw);
if (gEGLDebugLevel > 0)
Debug_eglSwapBuffers(dpy, draw);
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(draw);
if (!_s.get())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
egl_surface_t const * const s = get_surface(draw);
return s->cnx->egl.eglSwapBuffers(dp->disp[s->impl].dpy, s->surface);
}
EGLBoolean eglCopyBuffers( EGLDisplay dpy, EGLSurface surface,
NativePixmapType target)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(surface);
if (!_s.get())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
egl_surface_t const * const s = get_surface(surface);
return s->cnx->egl.eglCopyBuffers(
dp->disp[s->impl].dpy, s->surface, target);
}
const char* eglQueryString(EGLDisplay dpy, EGLint name)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return (const char *) NULL;
switch (name) {
case EGL_VENDOR:
return sVendorString;
case EGL_VERSION:
return sVersionString;
case EGL_EXTENSIONS:
return sExtensionString;
case EGL_CLIENT_APIS:
return sClientApiString;
}
return setError(EGL_BAD_PARAMETER, (const char *)0);
}
// ----------------------------------------------------------------------------
// EGL 1.1
// ----------------------------------------------------------------------------
EGLBoolean eglSurfaceAttrib(
EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(surface);
if (!_s.get())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
egl_surface_t const * const s = get_surface(surface);
if (s->cnx->egl.eglSurfaceAttrib) {
return s->cnx->egl.eglSurfaceAttrib(
dp->disp[s->impl].dpy, s->surface, attribute, value);
}
return setError(EGL_BAD_SURFACE, EGL_FALSE);
}
EGLBoolean eglBindTexImage(
EGLDisplay dpy, EGLSurface surface, EGLint buffer)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(surface);
if (!_s.get())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
egl_surface_t const * const s = get_surface(surface);
if (s->cnx->egl.eglBindTexImage) {
return s->cnx->egl.eglBindTexImage(
dp->disp[s->impl].dpy, s->surface, buffer);
}
return setError(EGL_BAD_SURFACE, EGL_FALSE);
}
EGLBoolean eglReleaseTexImage(
EGLDisplay dpy, EGLSurface surface, EGLint buffer)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(surface);
if (!_s.get())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
egl_surface_t const * const s = get_surface(surface);
if (s->cnx->egl.eglReleaseTexImage) {
return s->cnx->egl.eglReleaseTexImage(
dp->disp[s->impl].dpy, s->surface, buffer);
}
return setError(EGL_BAD_SURFACE, EGL_FALSE);
}
EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
EGLBoolean res = EGL_TRUE;
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
if (cnx->egl.eglSwapInterval) {
if (cnx->egl.eglSwapInterval(
dp->disp[i].dpy, interval) == EGL_FALSE) {
res = EGL_FALSE;
}
}
}
}
return res;
}
// ----------------------------------------------------------------------------
// EGL 1.2
// ----------------------------------------------------------------------------
EGLBoolean eglWaitClient(void)
{
clearError();
// could be called before eglInitialize(), but we wouldn't have a context
// then, and this function would return GL_TRUE, which isn't wrong.
EGLBoolean res = EGL_TRUE;
EGLContext ctx = getContext();
if (ctx) {
egl_context_t const * const c = get_context(ctx);
if (!c) return setError(EGL_BAD_CONTEXT, EGL_FALSE);
if (uint32_t(c->impl)>=2)
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
egl_connection_t* const cnx = &gEGLImpl[c->impl];
if (!cnx->dso)
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
if (cnx->egl.eglWaitClient) {
res = cnx->egl.eglWaitClient();
} else {
res = cnx->egl.eglWaitGL();
}
}
return res;
}
EGLBoolean eglBindAPI(EGLenum api)
{
clearError();
if (egl_init_drivers() == EGL_FALSE) {
return setError(EGL_BAD_PARAMETER, EGL_FALSE);
}
// bind this API on all EGLs
EGLBoolean res = EGL_TRUE;
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
if (cnx->egl.eglBindAPI) {
if (cnx->egl.eglBindAPI(api) == EGL_FALSE) {
res = EGL_FALSE;
}
}
}
}
return res;
}
EGLenum eglQueryAPI(void)
{
clearError();
if (egl_init_drivers() == EGL_FALSE) {
return setError(EGL_BAD_PARAMETER, EGL_FALSE);
}
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
if (cnx->egl.eglQueryAPI) {
// the first one we find is okay, because they all
// should be the same
return cnx->egl.eglQueryAPI();
}
}
}
// or, it can only be OpenGL ES
return EGL_OPENGL_ES_API;
}
EGLBoolean eglReleaseThread(void)
{
clearError();
// If there is context bound to the thread, release it
loseCurrent(get_context(getContext()));
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (cnx->dso) {
if (cnx->egl.eglReleaseThread) {
cnx->egl.eglReleaseThread();
}
}
}
egl_tls_t::clearTLS();
dbgReleaseThread();
return EGL_TRUE;
}
EGLSurface eglCreatePbufferFromClientBuffer(
EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer,
EGLConfig config, const EGLint *attrib_list)
{
clearError();
egl_display_t const* dp = 0;
egl_connection_t* cnx = validate_display_config(dpy, config, dp);
if (!cnx) return EGL_FALSE;
if (cnx->egl.eglCreatePbufferFromClientBuffer) {
return cnx->egl.eglCreatePbufferFromClientBuffer(
dp->disp[ dp->configs[intptr_t(config)].impl ].dpy,
buftype, buffer,
dp->configs[intptr_t(config)].config, attrib_list);
}
return setError(EGL_BAD_CONFIG, EGL_NO_SURFACE);
}
// ----------------------------------------------------------------------------
// EGL_EGLEXT_VERSION 3
// ----------------------------------------------------------------------------
EGLBoolean eglLockSurfaceKHR(EGLDisplay dpy, EGLSurface surface,
const EGLint *attrib_list)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(surface);
if (!_s.get())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
egl_surface_t const * const s = get_surface(surface);
if (s->cnx->egl.eglLockSurfaceKHR) {
return s->cnx->egl.eglLockSurfaceKHR(
dp->disp[s->impl].dpy, s->surface, attrib_list);
}
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
}
EGLBoolean eglUnlockSurfaceKHR(EGLDisplay dpy, EGLSurface surface)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(surface);
if (!_s.get())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
egl_surface_t const * const s = get_surface(surface);
if (s->cnx->egl.eglUnlockSurfaceKHR) {
return s->cnx->egl.eglUnlockSurfaceKHR(
dp->disp[s->impl].dpy, s->surface);
}
return setError(EGL_BAD_DISPLAY, EGL_FALSE);
}
EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target,
EGLClientBuffer buffer, const EGLint *attrib_list)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_NO_IMAGE_KHR;
if (ctx != EGL_NO_CONTEXT) {
ContextRef _c(ctx);
if (!_c.get())
return setError(EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR);
egl_context_t * const c = get_context(ctx);
// since we have an EGLContext, we know which implementation to use
EGLImageKHR image = c->cnx->egl.eglCreateImageKHR(
dp->disp[c->impl].dpy, c->context, target, buffer, attrib_list);
if (image == EGL_NO_IMAGE_KHR)
return image;
egl_image_t* result = new egl_image_t(dpy, ctx);
result->images[c->impl] = image;
return (EGLImageKHR)result;
} else {
// EGL_NO_CONTEXT is a valid parameter
/* Since we don't have a way to know which implementation to call,
* we're calling all of them. If at least one of the implementation
* succeeded, this is a success.
*/
EGLint currentError = eglGetError();
EGLImageKHR implImages[IMPL_NUM_IMPLEMENTATIONS];
bool success = false;
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
implImages[i] = EGL_NO_IMAGE_KHR;
if (cnx->dso) {
if (cnx->egl.eglCreateImageKHR) {
implImages[i] = cnx->egl.eglCreateImageKHR(
dp->disp[i].dpy, ctx, target, buffer, attrib_list);
if (implImages[i] != EGL_NO_IMAGE_KHR) {
success = true;
}
}
}
}
if (!success) {
// failure, if there was an error when we entered this function,
// the error flag must not be updated.
// Otherwise, the error is whatever happened in the implementation
// that faulted.
if (currentError != EGL_SUCCESS) {
setError(currentError, EGL_NO_IMAGE_KHR);
}
return EGL_NO_IMAGE_KHR;
} else {
// In case of success, we need to clear all error flags
// (especially those caused by the implementation that didn't
// succeed). TODO: we could avoid this if we knew this was
// a "full" success (all implementation succeeded).
eglGetError();
}
egl_image_t* result = new egl_image_t(dpy, ctx);
memcpy(result->images, implImages, sizeof(implImages));
return (EGLImageKHR)result;
}
}
EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
ImageRef _i(img);
if (!_i.get()) return setError(EGL_BAD_PARAMETER, EGL_FALSE);
egl_image_t* image = get_image(img);
bool success = false;
for (int i=0 ; i<IMPL_NUM_IMPLEMENTATIONS ; i++) {
egl_connection_t* const cnx = &gEGLImpl[i];
if (image->images[i] != EGL_NO_IMAGE_KHR) {
if (cnx->dso) {
if (cnx->egl.eglDestroyImageKHR) {
if (cnx->egl.eglDestroyImageKHR(
dp->disp[i].dpy, image->images[i])) {
success = true;
}
}
}
}
}
if (!success)
return EGL_FALSE;
_i.terminate();
return EGL_TRUE;
}
// ----------------------------------------------------------------------------
// EGL_EGLEXT_VERSION 5
// ----------------------------------------------------------------------------
EGLSyncKHR eglCreateSyncKHR(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_NO_SYNC_KHR;
EGLContext ctx = eglGetCurrentContext();
ContextRef _c(ctx);
if (!_c.get())
return setError(EGL_BAD_CONTEXT, EGL_NO_SYNC_KHR);
egl_context_t * const c = get_context(ctx);
EGLSyncKHR result = EGL_NO_SYNC_KHR;
if (c->cnx->egl.eglCreateSyncKHR) {
EGLSyncKHR sync = c->cnx->egl.eglCreateSyncKHR(
dp->disp[c->impl].dpy, type, attrib_list);
if (sync == EGL_NO_SYNC_KHR)
return sync;
result = (egl_sync_t*)new egl_sync_t(dpy, ctx, sync);
}
return (EGLSyncKHR)result;
}
EGLBoolean eglDestroySyncKHR(EGLDisplay dpy, EGLSyncKHR sync)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SyncRef _s(sync);
if (!_s.get()) return setError(EGL_BAD_PARAMETER, EGL_FALSE);
egl_sync_t* syncObject = get_sync(sync);
EGLContext ctx = syncObject->context;
ContextRef _c(ctx);
if (!_c.get())
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
EGLBoolean result = EGL_FALSE;
egl_context_t * const c = get_context(ctx);
if (c->cnx->egl.eglDestroySyncKHR) {
result = c->cnx->egl.eglDestroySyncKHR(
dp->disp[c->impl].dpy, syncObject->sync);
if (result)
_s.terminate();
}
return result;
}
EGLint eglClientWaitSyncKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags, EGLTimeKHR timeout)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SyncRef _s(sync);
if (!_s.get()) return setError(EGL_BAD_PARAMETER, EGL_FALSE);
egl_sync_t* syncObject = get_sync(sync);
EGLContext ctx = syncObject->context;
ContextRef _c(ctx);
if (!_c.get())
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
egl_context_t * const c = get_context(ctx);
if (c->cnx->egl.eglClientWaitSyncKHR) {
return c->cnx->egl.eglClientWaitSyncKHR(
dp->disp[c->impl].dpy, syncObject->sync, flags, timeout);
}
return EGL_FALSE;
}
EGLBoolean eglGetSyncAttribKHR(EGLDisplay dpy, EGLSyncKHR sync, EGLint attribute, EGLint *value)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SyncRef _s(sync);
if (!_s.get())
return setError(EGL_BAD_PARAMETER, EGL_FALSE);
egl_sync_t* syncObject = get_sync(sync);
EGLContext ctx = syncObject->context;
ContextRef _c(ctx);
if (!_c.get())
return setError(EGL_BAD_CONTEXT, EGL_FALSE);
egl_context_t * const c = get_context(ctx);
if (c->cnx->egl.eglGetSyncAttribKHR) {
return c->cnx->egl.eglGetSyncAttribKHR(
dp->disp[c->impl].dpy, syncObject->sync, attribute, value);
}
return EGL_FALSE;
}
// ----------------------------------------------------------------------------
// ANDROID extensions
// ----------------------------------------------------------------------------
EGLBoolean eglSetSwapRectangleANDROID(EGLDisplay dpy, EGLSurface draw,
EGLint left, EGLint top, EGLint width, EGLint height)
{
clearError();
egl_display_t const * const dp = validate_display(dpy);
if (!dp) return EGL_FALSE;
SurfaceRef _s(draw);
if (!_s.get())
return setError(EGL_BAD_SURFACE, EGL_FALSE);
egl_surface_t const * const s = get_surface(draw);
if (s->cnx->egl.eglSetSwapRectangleANDROID) {
return s->cnx->egl.eglSetSwapRectangleANDROID(
dp->disp[s->impl].dpy, s->surface, left, top, width, height);
}
return setError(EGL_BAD_DISPLAY, NULL);
}
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