refactor EGL source code

no changes is functionality. split various objects into their own files.
make egl_display objec's lock internal.

1 files changed, 269 insertions, 0 deletions

diff --git a/opengl/libs/EGL/egl_display.cpp b/opengl/libs/EGL/egl_display.cpp
new file mode 100644
index 0000000..272fa44
--- /dev/null
+++ b/opengl/libs/EGL/egl_display.cpp
@@ -0,0 +1,269 @@
+/* 
+ ** 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 "egl_display.h"
+#include "egl_object.h"
+#include "egl_tls.h"
+#include "egl_impl.h"
+#include "Loader.h"
+
+// ----------------------------------------------------------------------------
+namespace android {
+// ----------------------------------------------------------------------------
+
+extern void initEglTraceLevel();
+extern void setGLHooksThreadSpecific(gl_hooks_t const *value);
+
+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);
+}
+
+// ----------------------------------------------------------------------------
+
+egl_display_t egl_display_t::sDisplay[NUM_DISPLAYS];
+
+egl_display_t::egl_display_t() :
+    magic('_dpy'), numTotalConfigs(0), configs(0), refs(0) {
+}
+
+egl_display_t::~egl_display_t() {
+    magic = 0;
+}
+
+egl_display_t* egl_display_t::get(EGLDisplay dpy) {
+    uintptr_t index = uintptr_t(dpy)-1U;
+    return (index >= NUM_DISPLAYS) ? NULL : &sDisplay[index];
+}
+
+void egl_display_t::addObject(egl_object_t* object) {
+    Mutex::Autolock _l(lock);
+    objects.add(object);
+}
+
+bool egl_display_t::getObject(egl_object_t* object) {
+    Mutex::Autolock _l(lock);
+    if (objects.indexOf(object) >= 0) {
+        object->incRef();
+        return true;
+    }
+    return false;
+}
+
+bool egl_display_t::removeObject(egl_object_t* object) {
+    Mutex::Autolock _l(lock);
+    if (object->decRef() == 1) {
+        objects.remove(object);
+        return true;
+    }
+    return false;
+}
+
+EGLDisplay egl_display_t::getFromNativeDisplay(EGLNativeDisplayType disp) {
+    if (uintptr_t(disp) >= NUM_DISPLAYS)
+        return NULL;
+
+    return sDisplay[uintptr_t(disp)].getDisplay(disp);
+}
+
+EGLDisplay egl_display_t::getDisplay(EGLNativeDisplayType display) {
+
+    Mutex::Autolock _l(lock);
+
+    // get our driver loader
+    Loader& loader(Loader::getInstance());
+
+    for (int i = 0; i < IMPL_NUM_IMPLEMENTATIONS; i++) {
+        egl_connection_t* const cnx = &gEGLImpl[i];
+        if (cnx->dso && disp[i].dpy == EGL_NO_DISPLAY) {
+            EGLDisplay dpy = cnx->egl.eglGetDisplay(display);
+            disp[i].dpy = dpy;
+            if (dpy == EGL_NO_DISPLAY) {
+                loader.close(cnx->dso);
+                cnx->dso = NULL;
+            }
+        }
+    }
+
+    return EGLDisplay(uintptr_t(display) + 1U);
+}
+
+EGLBoolean egl_display_t::initialize(EGLint *major, EGLint *minor) {
+
+    Mutex::Autolock _l(lock);
+
+    if (refs > 0) {
+        if (major != NULL)
+            *major = VERSION_MAJOR;
+        if (minor != NULL)
+            *minor = VERSION_MINOR;
+        refs++;
+        return EGL_TRUE;
+    }
+
+#if EGL_TRACE
+
+    // Called both at early_init time and at this time. (Early_init is pre-zygote, so
+    // the information from that call may be stale.)
+    initEglTraceLevel();
+
+#endif
+
+    setGLHooksThreadSpecific(&gHooksNoContext);
+
+    // initialize each EGL and
+    // build our own extension string first, based on the extension we know
+    // and the extension supported by our client implementation
+    for (int i = 0; i < IMPL_NUM_IMPLEMENTATIONS; i++) {
+        egl_connection_t* const cnx = &gEGLImpl[i];
+        cnx->major = -1;
+        cnx->minor = -1;
+        if (!cnx->dso)
+            continue;
+
+#if defined(ADRENO130)
+#warning "Adreno-130 eglInitialize() workaround"
+        /*
+         * The ADRENO 130 driver returns a different EGLDisplay each time
+         * eglGetDisplay() is called, but also makes the EGLDisplay invalid
+         * after eglTerminate() has been called, so that eglInitialize()
+         * cannot be called again. Therefore, we need to make sure to call
+         * eglGetDisplay() before calling eglInitialize();
+         */
+        if (i == IMPL_HARDWARE) {
+            disp[i].dpy =
+            cnx->egl.eglGetDisplay(EGL_DEFAULT_DISPLAY);
+        }
+#endif
+
+        EGLDisplay idpy = 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
+            disp[i].state = egl_display_t::INITIALIZED;
+
+            // get the query-strings for this display for each implementation
+            disp[i].queryString.vendor = cnx->egl.eglQueryString(idpy,
+                    EGL_VENDOR);
+            disp[i].queryString.version = cnx->egl.eglQueryString(idpy,
+                    EGL_VERSION);
+            disp[i].queryString.extensions = cnx->egl.eglQueryString(idpy,
+                    EGL_EXTENSIONS);
+            disp[i].queryString.clientApi = cnx->egl.eglQueryString(idpy,
+                    EGL_CLIENT_APIS);
+
+        } else {
+            LOGW("%d: eglInitialize(%p) failed (%s)", i, idpy,
+                    egl_tls_t::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(disp[i].dpy, 0, 0, &n)) {
+                disp[i].config = (EGLConfig*) malloc(sizeof(EGLConfig) * n);
+                if (disp[i].config) {
+                    if (cnx->egl.eglGetConfigs(disp[i].dpy, disp[i].config, n,
+                            &disp[i].numConfigs)) {
+                        numTotalConfigs += n;
+                        res = EGL_TRUE;
+                    }
+                }
+            }
+        }
+    }
+
+    if (res == EGL_TRUE) {
+        configs = new egl_config_t[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 < disp[i].numConfigs; j++) {
+                    configs[k].impl = i;
+                    configs[k].config = disp[i].config[j];
+                    configs[k].configId = k + 1; // CONFIG_ID start at 1
+                    // store the implementation's CONFIG_ID
+                    cnx->egl.eglGetConfigAttrib(disp[i].dpy, disp[i].config[j],
+                            EGL_CONFIG_ID, &configs[k].implConfigId);
+                    k++;
+                }
+            }
+        }
+
+        // sort our configurations so we can do binary-searches
+        qsort(configs, numTotalConfigs, sizeof(egl_config_t), cmp_configs);
+
+        refs++;
+        if (major != NULL)
+            *major = VERSION_MAJOR;
+        if (minor != NULL)
+            *minor = VERSION_MINOR;
+        return EGL_TRUE;
+    }
+    return setError(EGL_NOT_INITIALIZED, EGL_FALSE);
+}
+
+EGLBoolean egl_display_t::terminate() {
+
+    Mutex::Autolock _l(lock);
+
+    if (refs == 0) {
+        return setError(EGL_NOT_INITIALIZED, EGL_FALSE);
+    }
+
+    // this is specific to Android, display termination is ref-counted.
+    if (refs > 1) {
+        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 && disp[i].state == egl_display_t::INITIALIZED) {
+            if (cnx->egl.eglTerminate(disp[i].dpy) == EGL_FALSE) {
+                LOGW("%d: eglTerminate(%p) failed (%s)", i, disp[i].dpy,
+                        egl_tls_t::egl_strerror(cnx->egl.eglGetError()));
+            }
+            // REVISIT: it's unclear what to do if eglTerminate() fails
+            free(disp[i].config);
+
+            disp[i].numConfigs = 0;
+            disp[i].config = 0;
+            disp[i].state = egl_display_t::TERMINATED;
+
+            res = EGL_TRUE;
+        }
+    }
+
+    // TODO: all egl_object_t should be marked for termination
+
+    refs--;
+    numTotalConfigs = 0;
+    delete[] configs;
+    return res;
+}
+
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+// ----------------------------------------------------------------------------