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14cdd9c96fb6eb9b2d6de4eb521ad50ebe1654ba
MapLibreParticleLab/android/cpp/native_map_view.cpp
Leith Bade 14cdd9c96f Rename lots of things
2014-12-04 01:10:43 +11:00

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#include <cstdlib>
#include <ctime>
#include <memory>
#include <list>
#include <tuple>
#include <sys/system_properties.h>
#include <GLES2/gl2.h>
#include <mbgl/android/native_map_view.hpp>
#include <mbgl/android/jni.hpp>
#include <mbgl/platform/platform.hpp>
#include <mbgl/platform/event.hpp>
#include <mbgl/platform/log.hpp>
#include <mbgl/util/std.hpp>
namespace mbgl {
namespace android {
void log_egl_string(EGLDisplay display, EGLint name, const char* label) {
const char* str = eglQueryString(display, name);
if (str == nullptr) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglQueryString(%d) returned error %d", name, eglGetError());
} else {
char buf[513];
for (int len = std::strlen(str), pos = 0; len > 0; len -= 512, pos += 512) {
strncpy(buf, str + pos, 512);
buf[512] = 0;
mbgl::Log::Info(mbgl::Event::OpenGL, "EGL %s: %s", label, buf);
}
}
}
void log_gl_string(GLenum name, const char* label) {
const GLubyte* str = glGetString(name);
if (str == nullptr) {
mbgl::Log::Error(mbgl::Event::OpenGL, "glGetString(%d) returned error %d", name, glGetError());
} else {
char buf[513];
for (int len = std::strlen(reinterpret_cast<const char *>(str)), pos = 0; len > 0; len -= 512, pos += 512) {
strncpy(buf, reinterpret_cast<const char *>(str) + pos, 512);
buf[512] = 0;
mbgl::Log::Info(mbgl::Event::OpenGL, "GL %s: %s", label, buf);
}
}
}
void MBGLView::make_active() {
mbgl::Log::Debug(mbgl::Event::Android, "MBGLView::make_active");
if ((nativeView.display != EGL_NO_DISPLAY) && (nativeView.surface != EGL_NO_SURFACE) && (nativeView.context != EGL_NO_CONTEXT)) {
if (!eglMakeCurrent(nativeView.display, nativeView.surface, nativeView.surface, nativeView.context)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglMakeCurrent() returned error %d", eglGetError());
}
} else {
mbgl::Log::Info(mbgl::Event::Android, "Not activating as we are not ready");
}
}
void MBGLView::make_inactive() {
mbgl::Log::Debug(mbgl::Event::Android, "MBGLView::make_inactive");
if (!eglMakeCurrent(nativeView.display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglMakeCurrent(EGL_NO_CONTEXT) returned error %d", eglGetError());
}
}
void MBGLView::swap() {
mbgl::Log::Debug(mbgl::Event::Android, "MBGLView::swap");
if (map->needsSwap() && (nativeView.display != EGL_NO_DISPLAY) && (nativeView.surface != EGL_NO_SURFACE)) {
if (!eglSwapBuffers(nativeView.display, nativeView.surface)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglSwapBuffers() returned error %d", eglGetError());
}
map->swapped();
nativeView.updateFps();
} else {
mbgl::Log::Info(mbgl::Event::Android, "Not swapping as we are not ready");
}
}
void MBGLView::notify() {
mbgl::Log::Debug(mbgl::Event::Android, "MBGLView::notify()");
// noop
}
void MBGLView::notify_map_change(mbgl::MapChange /* change */, mbgl::timestamp /* delay */) {
mbgl::Log::Debug(mbgl::Event::Android, "MBGLView::notify_map_change()");
nativeView.notifyMapChange();
}
NativeMapView::NativeMapView(JNIEnv* env, jobject obj_) : view(*this), map(view) {
mbgl::Log::Debug(mbgl::Event::Android, "NativeMapView::NativeMapView");
assert(env != nullptr);
assert(obj_ != nullptr);
if (env->GetJavaVM(&vm) < 0) {
env->ExceptionDescribe();
return;
}
obj = env->NewGlobalRef(obj_);
if (obj == nullptr) {
env->ExceptionDescribe();
return;
}
}
NativeMapView::~NativeMapView() {
mbgl::Log::Debug(mbgl::Event::Android, "NativeMapView::~NativeMapView");
terminateContext();
destroySurface();
terminateDisplay();
assert(vm != nullptr);
assert(obj != nullptr);
jint ret;
JNIEnv* env = nullptr;
ret = vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6);
if (ret == JNI_OK) {
env->DeleteGlobalRef(obj);
} else {
mbgl::Log::Debug(mbgl::Event::JNI, "GetEnv() failed with %i", ret);
}
obj = nullptr;
vm = nullptr;
}
bool NativeMapView::initializeDisplay() {
mbgl::Log::Debug(mbgl::Event::Android, "NativeMapView::initializeDisplay");
assert(display == EGL_NO_DISPLAY);
assert(config == nullptr);
assert(format < 0);
display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
if (display == EGL_NO_DISPLAY) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglGetDisplay() returned error %d", eglGetError());
terminateDisplay();
return false;
}
EGLint major, minor;
if (!eglInitialize(display, &major, &minor)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglInitialize() returned error %d", eglGetError());
terminateDisplay();
return false;
}
if ((major <= 1) && (minor < 3)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "EGL version is too low, need 1.3, got %d.%d", major, minor);
terminateDisplay();
return false;
}
log_egl_string(display, EGL_VENDOR, "Vendor");
log_egl_string(display, EGL_VERSION, "Version");
log_egl_string(display, EGL_CLIENT_APIS, "Client APIs");
log_egl_string(display, EGL_EXTENSIONS, "Client Extensions");
// Detect if we are in emulator
char prop[PROP_VALUE_MAX];
__system_property_get("ro.kernel.qemu", prop);
bool inEmulator = strtol(prop, nullptr, 0) == 1;
if (inEmulator) {
mbgl::Log::Warning(mbgl::Event::Android, "In emulator! Enabling hacks :-(");
}
// Get all configs at least RGB 565 with 16 depth and 8 stencil
EGLint configAttribs[] = {
EGL_CONFIG_CAVEAT, EGL_NONE,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_BUFFER_SIZE, 16,
EGL_RED_SIZE, 5,
EGL_GREEN_SIZE, 6,
EGL_BLUE_SIZE, 5,
EGL_DEPTH_SIZE, 16,
EGL_STENCIL_SIZE, 8,
(inEmulator ? EGL_NONE : EGL_CONFORMANT), EGL_OPENGL_ES2_BIT, // Ugly hack
(inEmulator ? EGL_NONE : EGL_COLOR_BUFFER_TYPE), EGL_RGB_BUFFER, // Ugly hack
EGL_NONE
};
EGLint numConfigs;
if (!eglChooseConfig(display, configAttribs, nullptr, 0, &numConfigs)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglChooseConfig(NULL) returned error %d", eglGetError());
terminateDisplay();
return false;
}
if (numConfigs < 1) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglChooseConfig() returned no configs.");
terminateDisplay();
return false;
}
const std::unique_ptr<EGLConfig[]> configs = mbgl::util::make_unique<EGLConfig[]>(numConfigs);
if (!eglChooseConfig(display, configAttribs, configs.get(), numConfigs, &numConfigs)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglChooseConfig() returned error %d", eglGetError());
terminateDisplay();
return false;
}
config = chooseConfig(configs.get(), numConfigs);
if (config == nullptr) {
mbgl::Log::Error(mbgl::Event::OpenGL, "No config chosen");
terminateDisplay();
return false;
}
if (!eglGetConfigAttrib(display, config, EGL_NATIVE_VISUAL_ID, &format)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglGetConfigAttrib() returned error %d", eglGetError());
terminateDisplay();
return false;
}
mbgl::Log::Info(mbgl::Event::OpenGL, "Chosen window format is %d", format);
return true;
}
void NativeMapView::terminateDisplay() {
mbgl::Log::Debug(mbgl::Event::Android, "NativeMapView::terminateDisplay");
if (display != EGL_NO_DISPLAY) {
// Destroy the surface first, if it still exists. This call needs a valid surface.
if (surface != EGL_NO_SURFACE) {
if (!eglDestroySurface(display, surface)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglDestroySurface() returned error %d", eglGetError());
}
surface = EGL_NO_SURFACE;
}
if (!eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglMakeCurrent(EGL_NO_CONTEXT) returned error %d",
eglGetError());
}
if (!eglTerminate(display)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglTerminate() returned error %d", eglGetError());
}
}
display = EGL_NO_DISPLAY;
config = nullptr;
format = -1;
}
bool NativeMapView::initializeContext() {
mbgl::Log::Debug(mbgl::Event::Android, "NativeMapView::initializeContext");
assert(display != EGL_NO_DISPLAY);
assert(context == EGL_NO_CONTEXT);
assert(config != nullptr);
const EGLint contextAttribs[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
context = eglCreateContext(display, config, EGL_NO_CONTEXT, contextAttribs);
if (context == EGL_NO_CONTEXT) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglCreateContext() returned error %d", eglGetError());
terminateContext();
return false;
}
return true;
}
void NativeMapView::terminateContext() {
mbgl::Log::Debug(mbgl::Event::Android, "NativeMapView::terminateContext");
if (display != EGL_NO_DISPLAY) {
if (!eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglMakeCurrent(EGL_NO_CONTEXT) returned error %d",
eglGetError());
}
if (context != EGL_NO_CONTEXT) {
if (!eglDestroyContext(display, context)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglDestroyContext() returned error %d", eglGetError());
}
}
}
context = EGL_NO_CONTEXT;
}
bool NativeMapView::createSurface(ANativeWindow* window_) {
mbgl::Log::Debug(mbgl::Event::Android, "NativeMapView::createSurface");
assert(window == nullptr);
assert(window_ != nullptr);
window = window_;
assert(display != EGL_NO_DISPLAY);
assert(surface == EGL_NO_SURFACE);
assert(config != nullptr);
assert(format >= 0);
ANativeWindow_setBuffersGeometry(window, 0, 0, format);
const EGLint surfaceAttribs[] = {
EGL_NONE
};
surface = eglCreateWindowSurface(display, config, window, surfaceAttribs);
if (surface == EGL_NO_SURFACE) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglCreateWindowSurface() returned error %d", eglGetError());
destroySurface();
return false;
}
if (!firstTime) {
firstTime = true;
if (!eglMakeCurrent(display, surface, surface, context)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglMakeCurrent() returned error %d", eglGetError());
}
log_gl_string(GL_VENDOR, "Vendor");
log_gl_string(GL_RENDERER, "Renderer");
log_gl_string(GL_VERSION, "Version");
log_gl_string(GL_SHADING_LANGUAGE_VERSION, "SL Version"); // In the emulator this returns NULL with error code 0? https://code.google.com/p/android/issues/detail?id=78977
log_gl_string(GL_EXTENSIONS, "Extensions");
loadExtensions();
if (!eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglMakeCurrent(EGL_NO_CONTEXT) returned error %d", eglGetError());
}
}
resume();
return true;
}
void NativeMapView::destroySurface() {
mbgl::Log::Debug(mbgl::Event::Android, "NativeMapView::destroySurface");
pause(true);
if (surface != EGL_NO_SURFACE) {
if (!eglDestroySurface(display, surface)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglDestroySurface() returned error %d", eglGetError());
}
}
surface = EGL_NO_SURFACE;
if (window != nullptr) {
ANativeWindow_release(window);
window = nullptr;
}
}
// Speed
/*
typedef enum {
Format16Bit = 0,
Format32BitNoAlpha = 1,
Format32BitAlpha = 2,
Format24Bit = 3,
Unknown = 4
} BufferFormat;
typedef enum {
Format16Depth8Stencil = 0,
Format24Depth8Stencil = 1,
} DepthStencilFormat;
*/
// Quality
typedef enum {
Format16Bit = 3,
Format32BitNoAlpha = 1,
Format32BitAlpha = 2,
Format24Bit = 0,
Unknown = 4
} BufferFormat;
typedef enum {
Format16Depth8Stencil = 1,
Format24Depth8Stencil = 0,
} DepthStencilFormat;
// Tuple is <buffer_format, depth_stencil_format, is_not_conformant, is_caveat, config_num, config_id>
typedef std::tuple<BufferFormat, DepthStencilFormat, bool, bool, int, EGLConfig> ConfigProperties;
EGLConfig NativeMapView::chooseConfig(const EGLConfig configs[], EGLint numConfigs) {
mbgl::Log::Info(mbgl::Event::OpenGL, "Found %d configs", numConfigs);
// Create a list of configs that pass our filters
std::list<ConfigProperties> configList;
for (int i = 0; i < numConfigs; i++) {
mbgl::Log::Info(mbgl::Event::OpenGL, "Config %d:", i);
EGLint caveat, conformant, bits, red, green, blue, alpha, alphaMask, depth, stencil, sampleBuffers, samples;
if (!eglGetConfigAttrib(display, configs[i], EGL_CONFIG_CAVEAT, &caveat)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglGetConfigAttrib(EGL_CONFIG_CAVEAT) returned error %d", eglGetError());
return nullptr;
}
if (!eglGetConfigAttrib(display, configs[i], EGL_CONFORMANT, &conformant)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglGetConfigAttrib(EGL_CONFORMANT) returned error %d", eglGetError());
return nullptr;
}
if (!eglGetConfigAttrib(display, configs[i], EGL_BUFFER_SIZE, &bits)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglGetConfigAttrib(EGL_BUFFER_SIZE) returned error %d", eglGetError());
return nullptr;
}
if (!eglGetConfigAttrib(display, configs[i], EGL_RED_SIZE, &red)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglGetConfigAttrib(EGL_RED_SIZE) returned error %d", eglGetError());
return nullptr;
}
if (!eglGetConfigAttrib(display, configs[i], EGL_GREEN_SIZE, &green)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglGetConfigAttrib(EGL_GREEN_SIZE) returned error %d", eglGetError());
return nullptr;
}
if (!eglGetConfigAttrib(display, configs[i], EGL_BLUE_SIZE, &blue)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglGetConfigAttrib(EGL_BLUE_SIZE) returned error %d", eglGetError());
return nullptr;
}
if (!eglGetConfigAttrib(display, configs[i], EGL_ALPHA_SIZE, &alpha)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglGetConfigAttrib(EGL_ALPHA_SIZE) returned error %d", eglGetError());
return nullptr;
}
if (!eglGetConfigAttrib(display, configs[i], EGL_ALPHA_MASK_SIZE, &alphaMask)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglGetConfigAttrib(EGL_ALPHA_MASK_SIZE) returned error %d", eglGetError());
return nullptr;
}
if (!eglGetConfigAttrib(display, configs[i], EGL_DEPTH_SIZE, &depth)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglGetConfigAttrib(EGL_DEPTH_SIZE) returned error %d", eglGetError());
return nullptr;
}
if (!eglGetConfigAttrib(display, configs[i], EGL_STENCIL_SIZE, &stencil)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglGetConfigAttrib(EGL_STENCIL_SIZE) returned error %d", eglGetError());
return nullptr;
}
if (!eglGetConfigAttrib(display, configs[i], EGL_SAMPLE_BUFFERS, &sampleBuffers)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglGetConfigAttrib(EGL_SAMPLE_BUFFERS) returned error %d", eglGetError());
return nullptr;
}
if (!eglGetConfigAttrib(display, configs[i], EGL_SAMPLES, &samples)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "eglGetConfigAttrib(EGL_SAMPLES) returned error %d", eglGetError());
return nullptr;
}
mbgl::Log::Info(mbgl::Event::OpenGL, "...Caveat: %d", caveat);
mbgl::Log::Info(mbgl::Event::OpenGL, "...Conformant: %d", conformant);
mbgl::Log::Info(mbgl::Event::OpenGL, "...Color: %d", bits);
mbgl::Log::Info(mbgl::Event::OpenGL, "...Red: %d", red);
mbgl::Log::Info(mbgl::Event::OpenGL, "...Green: %d", green);
mbgl::Log::Info(mbgl::Event::OpenGL, "...Blue: %d", blue);
mbgl::Log::Info(mbgl::Event::OpenGL, "...Alpha: %d", alpha);
mbgl::Log::Info(mbgl::Event::OpenGL, "...Alpha mask: %d", alphaMask);
mbgl::Log::Info(mbgl::Event::OpenGL, "...Depth: %d", depth);
mbgl::Log::Info(mbgl::Event::OpenGL, "...Stencil: %d", stencil);
mbgl::Log::Info(mbgl::Event::OpenGL, "...Sample buffers: %d", sampleBuffers);
mbgl::Log::Info(mbgl::Event::OpenGL, "...Samples: %d", samples);
bool configOk = true;
configOk &= (depth == 24) || (depth == 16);
configOk &= stencil == 8;
configOk &= sampleBuffers == 0;
configOk &= samples == 0;
// Filter our configs first for depth, stencil and anti-aliasing
if (configOk) {
// Work out the config's buffer format
BufferFormat bufferFormat;
if ((bits == 16) && (red == 5) && (green == 6) && (blue == 5) && (alpha == 0)) {
bufferFormat = Format16Bit;
} else if ((bits == 32) && (red == 8) && (green == 8) && (blue == 8) && (alpha == 0)) {
bufferFormat = Format32BitNoAlpha;
} else if ((bits == 32) && (red == 8) && (green == 8) && (blue == 8) && (alpha == 8)) {
bufferFormat = Format32BitAlpha;
} else if ((bits == 24) && (red == 8) && (green == 8) && (blue == 8) && (alpha == 0)) {
bufferFormat = Format24Bit;
} else {
bufferFormat = Unknown;
}
// Work out the config's depth stencil format
DepthStencilFormat depthStencilFormat;
if ((depth == 16) && (stencil == 8)) {
depthStencilFormat = Format16Depth8Stencil;
} else {
depthStencilFormat = Format24Depth8Stencil;
}
bool isNotConformant = (conformant & EGL_OPENGL_ES2_BIT) != EGL_OPENGL_ES2_BIT;
bool isCaveat = caveat != EGL_NONE;
EGLConfig configId = configs[i];
// Ignore formats we don't recognise
if (bufferFormat != Unknown)
{
configList.push_back(std::make_tuple(bufferFormat, depthStencilFormat, isNotConformant, isCaveat, i, configId));
}
}
}
if (configList.empty()) {
mbgl::Log::Error(mbgl::Event::OpenGL, "Config list was empty.");
}
// Sort the configs to find the best one
configList.sort();
usingDepth24 = std::get<1>(configList.front()) == Format24Depth8Stencil;
bool isConformant = !std::get<2>(configList.front());
bool isCaveat = std::get<3>(configList.front());
int configNum = std::get<4>(configList.front());
EGLConfig configId = std::get<5>(configList.front());
mbgl::Log::Info(mbgl::Event::OpenGL, "Chosen config is %d", configNum);
if (isCaveat) {
mbgl::Log::Warning(mbgl::Event::OpenGL, "Chosen config has a caveat.");
}
if (!isConformant) {
mbgl::Log::Warning(mbgl::Event::OpenGL, "Chosen config is not conformant.");
}
return configId;
}
void NativeMapView::start() {
mbgl::Log::Debug(mbgl::Event::Android, "NativeMapView::start");
if (display == EGL_NO_DISPLAY) {
initializeDisplay();
}
if (context == EGL_NO_CONTEXT) {
initializeContext();
}
assert(display != EGL_NO_DISPLAY);
assert(context != EGL_NO_CONTEXT);
map.start(true);
}
void NativeMapView::loadExtensions() {
const GLubyte* str = glGetString(GL_EXTENSIONS);
if (str == nullptr) {
mbgl::Log::Error(mbgl::Event::OpenGL, "glGetString(GL_EXTENSIONS) returned error %d", glGetError());
return;
}
std::string extensions(reinterpret_cast<const char*>(str));
if (extensions.find("GL_OES_vertex_array_object") != std::string::npos) {
mbgl::Log::Info(mbgl::Event::OpenGL, "Using GL_OES_vertex_array_object.");
gl::BindVertexArray = (gl::PFNGLBINDVERTEXARRAYPROC)eglGetProcAddress("glBindVertexArrayOES");
gl::DeleteVertexArrays = (gl::PFNGLDELETEVERTEXARRAYSPROC)eglGetProcAddress("glDeleteVertexArraysOES");
gl::GenVertexArrays = (gl::PFNGLGENVERTEXARRAYSPROC)eglGetProcAddress("glGenVertexArraysOES");
gl::IsVertexArray = (gl::PFNGLISVERTEXARRAYPROC)eglGetProcAddress("glIsVertexArrayOES");
if ((gl::BindVertexArray == nullptr) || (gl::DeleteVertexArrays == nullptr) || (gl::GenVertexArrays == nullptr) || (gl::IsVertexArray == nullptr)) {
mbgl::Log::Error(mbgl::Event::OpenGL, "Could not load GL_OES_vertex_array_object functions.");
gl::BindVertexArray = nullptr;
gl::DeleteVertexArrays = nullptr;
gl::GenVertexArrays = nullptr;
gl::IsVertexArray = nullptr;
}
}
if (extensions.find("GL_OES_packed_depth_stencil") != std::string::npos) {
mbgl::Log::Info(mbgl::Event::OpenGL, "Using GL_OES_packed_depth_stencil.");
gl::isPackedDepthStencilSupported = true;
}
if (extensions.find("GL_OES_depth24") != std::string::npos) {
mbgl::Log::Info(mbgl::Event::OpenGL, "Using GL_OES_depth24.");
if (usingDepth24) {
gl::isDepth24Supported = true;
} else {
mbgl::Log::Info(mbgl::Event::OpenGL, "Preferring 16 bit depth.");
}
}
}
void NativeMapView::stop() {
mbgl::Log::Debug(mbgl::Event::Android, "NativeMapView::stop");
if ((display != EGL_NO_DISPLAY) && (context != EGL_NO_CONTEXT)) {
map.stop();
}
}
void NativeMapView::pause(bool waitForPause) {
mbgl::Log::Debug(mbgl::Event::Android, "NativeMapView::pause %s", (waitForPause) ? "true" : "false");
if ((display != EGL_NO_DISPLAY) && (context != EGL_NO_CONTEXT)) {
map.pause(waitForPause);
}
}
void NativeMapView::resume() {
mbgl::Log::Debug(mbgl::Event::Android, "NativeMapView::resume");
assert(display != EGL_NO_DISPLAY);
assert(context != EGL_NO_CONTEXT);
if (surface != EGL_NO_SURFACE) {
map.resume();
} else {
mbgl::Log::Debug(mbgl::Event::Android, "Not resuming because we are not ready");
}
}
void NativeMapView::notifyMapChange() {
mbgl::Log::Debug(mbgl::Event::Android, "NativeMapView::notify_map_change()");
assert(vm != nullptr);
assert(obj != nullptr);
JavaVMAttachArgs args = {
JNI_VERSION_1_2,
"NativeMapView::notify_map_change()",
NULL
};
jint ret;
JNIEnv* env = nullptr;
bool detach = false;
ret = vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6);
if (ret != JNI_OK) {
if (ret != JNI_EDETACHED) {
mbgl::Log::Error(mbgl::Event::JNI, "GetEnv() failed with %i", ret);
return;
} else {
ret = vm->AttachCurrentThread(&env, &args);
if (ret != JNI_OK) {
mbgl::Log::Error(mbgl::Event::JNI, "AttachCurrentThread() failed with %i", ret);
return;
}
detach = true;
}
}
env->CallVoidMethod(obj, onMapChangedId);
if (env->ExceptionCheck()) {
env->ExceptionDescribe();
}
if (detach) {
if ((ret = vm->DetachCurrentThread()) != JNI_OK) {
mbgl::Log::Error(mbgl::Event::JNI, "DetachCurrentThread() failed with %i", ret);
return;
}
}
env = nullptr;
}
void NativeMapView::enableFps(bool enable) {
mbgl::Log::Debug(mbgl::Event::Android, "NativeMapView::enableFps()");
fpsEnabled = enable;
}
void NativeMapView::updateFps() {
mbgl::Log::Debug(mbgl::Event::Android, "NativeMapView::updateFps()");
if (!fpsEnabled) {
return;
}
static int frames = 0;
static int64_t timeElapsed = 0LL;
frames++;
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
int64_t currentTime = now.tv_sec*1000000000LL + now.tv_nsec;
if (currentTime - timeElapsed >= 1) {
fps = frames / ((currentTime - timeElapsed) / 1E9);
mbgl::Log::Debug(mbgl::Event::Render, "FPS: %4.2f", fps);
timeElapsed = currentTime;
frames = 0;
}
assert(vm != nullptr);
assert(obj != nullptr);
JavaVMAttachArgs args = {
JNI_VERSION_1_2,
"NativeMapView::updateFps()",
NULL
};
jint ret;
JNIEnv* env = nullptr;
bool detach = false;
ret = vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6);
if (ret != JNI_OK) {
if (ret != JNI_EDETACHED) {
mbgl::Log::Error(mbgl::Event::JNI, "GetEnv() failed with %i", ret);
return;
} else {
ret = vm->AttachCurrentThread(&env, &args);
if (ret != JNI_OK) {
mbgl::Log::Error(mbgl::Event::JNI, "AttachCurrentThread() failed with %i", ret);
return;
}
detach = true;
}
}
env->CallVoidMethod(obj, onFpsChangedId, fps);
if (env->ExceptionCheck()) {
env->ExceptionDescribe();
}
if (detach) {
if ((ret = vm->DetachCurrentThread()) != JNI_OK) {
mbgl::Log::Error(mbgl::Event::JNI, "DetachCurrentThread() failed with %i", ret);
return;
}
}
env = nullptr;
}
}
}
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