Merge "OpenGL: fix initializeAnglePlatform with built-in ANGLE driver"

#include <graphicsenv/GraphicsEnv.h>

#include <time.h>

#include <log/log.h>

#include <vndksupport/linker.h>

namespace angle {

constexpr char kAngleEs2Lib[] = "libGLESv2_angle.so";

constexpr int kAngleDlFlags = RTLD_LOCAL | RTLD_NOW;

static GetDisplayPlatformFunc angleGetDisplayPlatform = nullptr;

static ResetDisplayPlatformFunc angleResetDisplayPlatform = nullptr;

bool initializeAnglePlatform(EGLDisplay dpy) {

    // Since we're inside libEGL, use dlsym to lookup fptr for ANGLEGetDisplayPlatform

    android_namespace_t* ns = android::GraphicsEnv::getInstance().getAngleNamespace();

    void* so = nullptr;

    if (ns) {

        const android_dlextinfo dlextinfo = {

                .flags = ANDROID_DLEXT_USE_NAMESPACE,

                .library_namespace = ns,

        };

    void* so = android_dlopen_ext("libGLESv2_angle.so", RTLD_LOCAL | RTLD_NOW, &dlextinfo);

        so = android_dlopen_ext(kAngleEs2Lib, kAngleDlFlags, &dlextinfo);

    } else {

        // If we are here, ANGLE is loaded as built-in gl driver in the sphal.

        so = android_load_sphal_library(kAngleEs2Lib, kAngleDlFlags);

    }

    if (!so) {

        ALOGE("%s failed to dlopen %s!", __FUNCTION__, kAngleEs2Lib);

        return false;

    }

    angleGetDisplayPlatform =

            reinterpret_cast<GetDisplayPlatformFunc>(dlsym(so, "ANGLEGetDisplayPlatform"));