void GameLogic::renderLeadBoard()
{
//Render leader board screen
m_platform.beginRender();
glClear(GL_COLOR_BUFFER_BIT);
glEnable(GL_TEXTURE_2D);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
m_background.draw();
m_leaderBoard.draw();
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisable(GL_TEXTURE_2D);
glDisable(GL_BLEND);
bbutil_render_text(m_font, m_message, m_messagePosX, m_messagePosY, 1.0f, 1.0f, 1.0f, 1.0f);
if (m_leaderBoardReady) {
m_playButton.draw();
float posY, sizeX, sizeY;
char buf[100];
bbutil_measure_text(m_leaderboardFont, "123", &sizeX, &sizeY);
posY = m_leaderBoard.PosY() + m_leaderBoard.Height() / 2 - sizeY - LEADERBOARD_LINE_OFFSET_Y;
for (int i = 0; i < static_cast<int>(m_leaderboard.size()); i++) {
sprintf(buf, "%i. %s", m_leaderboard[i].rank(), m_leaderboard[i].name().c_str());
bbutil_render_text(m_leaderboardFont, buf, m_leaderBoard.PosX() - m_leaderBoard.Width() / 2 + LEADERBOARD_LINE_OFFSET_X, posY, 1.0f, 1.0f, 1.0f, 1.0f);
sprintf(buf, "%li", m_leaderboard[i].score());
bbutil_measure_text(m_leaderboardFont, buf, &sizeX, &sizeY);
bbutil_render_text(m_leaderboardFont, buf, m_leaderBoard.PosX() + m_leaderBoard.Width() / 2 - sizeX - LEADERBOARD_LINE_OFFSET_X, posY, 1.0f, 1.0f, 1.0f, 1.0f);
posY -= sizeY + 10.0f;
}
}
m_platform.finishRender();
}
void GameLogic::onPause()
{
if (m_gamePaused == false && m_state == GamePlay) {
m_gamePaused = true;
m_message = "Game paused, tap screen to start";
float textSizeX, textSizeY;
bbutil_measure_text(m_font, m_message, &textSizeX, &textSizeY);
m_messagePosX = (m_sceneWidth - textSizeX) / 2;
m_messagePosY = (m_sceneHeight - textSizeY) / 2;
}
m_backgroundMusic.pause();
}
void GameLogic::onUserReady(const std::string& userName, bool isAnonymous, const std::string& errorString)
{
if (isAnonymous) {
if (!errorString.empty()) {
m_platform.displayPrompt(errorString + ", please enter your name");
} else {
m_platform.displayPrompt("Please enter your name");
}
} else {
// We've got the user name, proceed with game play (which starts paused).
m_state = GamePlay;
m_message = "Game paused, tap screen to start";
float textSizeX, textSizeY;
bbutil_measure_text(m_font, m_message, &textSizeX, &textSizeY);
m_messagePosX = (m_sceneWidth - textSizeX) / 2;
m_messagePosY = (m_sceneHeight - textSizeY) / 2;
}
}
void GameLogic::endGamePlay(bool win)
{
m_gameFinished = true;
m_state = LeaderBoard;
if (win) {
m_message = "Congratulations, you won!";
} else {
m_message = "Sorry, you lost. Another try maybe?";
}
float sizeX, sizeY;
bbutil_measure_text(m_font, m_message, &sizeX, &sizeY);
m_messagePosX = (m_sceneWidth - sizeX) / 2;
m_messagePosY = m_sceneHeight - sizeY - MESSAGE_OFFSET_Y;
if (win) {
m_platform.submitScore(m_score);
} else {
m_platform.fetchLeaderboard();
}
}
static void frame(void *data)
{
App *app = (App*)data;
/* Calculate delta time */
app->timeStart = GetTicks();
Globals::DeltaTime = (float)(app->timeStart - app->oldTime) / app->dfps;
app->oldTime = app->timeStart;
/* Update & draw game */
Game::Update();
Game::Draw();
/* Calculate FPS */
if(GetTicks() >= app->fpsTimeStart + 1000)
{
Globals::FPS = app->frames;
app->frames = 1;
app->fpsTimeStart = GetTicks();
}
/*else*/ ++app->frames;
/* Print FPS */
static std::stringstream ss;
ss.str("");
ss << "FPS: " << Globals::FPS;
//ss << Globals::ScreenWidth << ", " << Globals::ScreenHeight;
float textWidth, textHeight;
bbutil_measure_text(app->mainFont, ss.str().c_str(), &textWidth, &textHeight);
float x = -Globals::ScreenWidth * 0.5f;
float y = Globals::ScreenHeight * 0.5f - textHeight;
bbutil_render_text(app->mainFont, ss.str().c_str(), x, y, 1.0f, 1.0f, 1.0f, 1.0f);
}
int init() {
EGLint surface_width, surface_height;
//On initialize bbutil loads arial as a default font. We are going to load MyriadPro-Bold as it looks a little better and scale it
//to fit out bubble nicely.
int dpi = bbutil_calculate_dpi(screen_cxt);
font = bbutil_load_font(
"/usr/fonts/font_repository/adobe/MyriadPro-Bold.otf", 15, dpi);
if (!font) {
return EXIT_FAILURE;
}
//Load background texture
float tex_x, tex_y;
if (EXIT_SUCCESS
!= bbutil_load_texture("app/native/HelloWorld_smaller_bubble.png",
NULL, NULL, &tex_x, &tex_y, &background)) {
fprintf(stderr, "Unable to load background texture\n");
}
//Query width and height of the window surface created by utility code
eglQuerySurface(egl_disp, egl_surf, EGL_WIDTH, &surface_width);
eglQuerySurface(egl_disp, egl_surf, EGL_HEIGHT, &surface_height);
EGLint err = eglGetError();
if (err != 0x3000) {
fprintf(stderr, "Unable to query EGL surface dimensions\n");
return EXIT_FAILURE;
}
width = (float) surface_width;
height = (float) surface_height;
//Initialize GL for 2D rendering
glViewport(0, 0, (int) width, (int) height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrthof(0.0f, width / height, 0.0f, 1.0f, -1.0f, 1.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
//Set world coordinates to coincide with screen pixels
glScalef(1.0f / height, 1.0f / height, 1.0f);
float text_width, text_height;
bbutil_measure_text(font, "Hello world", &text_width, &text_height);
pos_x = (width - text_width) / 2;
pos_y = height / 2;
//Setup background polygon
vertices[0] = 0.0f;
vertices[1] = 0.0f;
vertices[2] = width;
vertices[3] = 0.0f;
vertices[4] = 0.0f;
vertices[5] = height;
vertices[6] = width;
vertices[7] = height;
tex_coord[0] = 0.0f;
tex_coord[1] = 0.0f;
tex_coord[2] = tex_x;
tex_coord[3] = 0.0f;
tex_coord[4] = 0.0f;
tex_coord[5] = tex_y;
tex_coord[6] = tex_x;
tex_coord[7] = tex_y;
return EXIT_SUCCESS;
}
int initialize() {
//Load shadow and button textures
float tex_x = 1.0f, tex_y = 1.0f;
//Load textures for radio buttons
int size_x = 64, size_y = 64;
if (EXIT_SUCCESS
!= bbutil_load_texture("app/native/radio_btn_unselected.png",
NULL, NULL, &tex_x, &tex_y, &radio_btn_unselected)) {
fprintf(stderr, "Unable to load non-selected radio button texture\n");
}
radio_btn_unselected_vertices[0] = 0.0f;
radio_btn_unselected_vertices[1] = 0.0f;
radio_btn_unselected_vertices[2] = size_x;
radio_btn_unselected_vertices[3] = 0.0f;
radio_btn_unselected_vertices[4] = 0.0f;
radio_btn_unselected_vertices[5] = size_y;
radio_btn_unselected_vertices[6] = size_x;
radio_btn_unselected_vertices[7] = size_y;
radio_btn_unselected_tex_coord[0] = 0.0f;
radio_btn_unselected_tex_coord[1] = 0.0f;
radio_btn_unselected_tex_coord[2] = tex_x;
radio_btn_unselected_tex_coord[3] = 0.0f;
radio_btn_unselected_tex_coord[4] = 0.0f;
radio_btn_unselected_tex_coord[5] = tex_y;
radio_btn_unselected_tex_coord[6] = tex_x;
radio_btn_unselected_tex_coord[7] = tex_y;
if (EXIT_SUCCESS
!= bbutil_load_texture("app/native/radio_btn_selected.png", NULL,
NULL, &tex_x, &tex_y, &radio_btn_selected)) {
fprintf(stderr, "Unable to load selected radio button texture\n");
}
radio_btn_selected_vertices[0] = 0.0f;
radio_btn_selected_vertices[1] = 0.0f;
radio_btn_selected_vertices[2] = size_x;
radio_btn_selected_vertices[3] = 0.0f;
radio_btn_selected_vertices[4] = 0.0f;
radio_btn_selected_vertices[5] = size_y;
radio_btn_selected_vertices[6] = size_x;
radio_btn_selected_vertices[7] = size_y;
radio_btn_selected_tex_coord[0] = 0.0f;
radio_btn_selected_tex_coord[1] = 0.0f;
radio_btn_selected_tex_coord[2] = tex_x;
radio_btn_selected_tex_coord[3] = 0.0f;
radio_btn_selected_tex_coord[4] = 0.0f;
radio_btn_selected_tex_coord[5] = tex_y;
radio_btn_selected_tex_coord[6] = tex_x;
radio_btn_selected_tex_coord[7] = tex_y;
button_size_x = (float) size_x;
button_size_y = (float) size_y;
if (EXIT_SUCCESS
!= bbutil_load_texture("app/native/shadow.png", NULL, NULL,
&tex_x, &tex_y, &shadow)) {
fprintf(stderr, "Unable to load shadow texture\n");
}
shadow_size_x = (float) 512;
shadow_size_y = (float) 256;
shadow_tex_coord[0] = 0.0f;
shadow_tex_coord[1] = 0.0f;
shadow_tex_coord[2] = tex_x;
shadow_tex_coord[3] = 0.0f;
shadow_tex_coord[4] = 0.0f;
shadow_tex_coord[5] = tex_y;
shadow_tex_coord[6] = tex_x;
shadow_tex_coord[7] = tex_y;
angle = 0.0f;
pos_x = 0.0f;
pos_y = 0.0f;
//Load MyriadPro bold to use for our color menu
int dpi = bbutil_calculate_dpi(screen_cxt);
if (dpi == EXIT_FAILURE) {
fprintf(stderr, "Unable to calculate dpi\n");
return EXIT_FAILURE;
}
font = bbutil_load_font(
"/usr/fonts/font_repository/adobe/MyriadPro-Bold.otf", 15, dpi);
if (!font) {
return EXIT_FAILURE;
}
float text_width, text_height;
bbutil_measure_text(font, "Color Menu", &text_width, &text_height);
menu_height = text_height + 10.0f + button_size_y * 4;
//See if a savefile exists. If not, initialize to a hidden menu and a red cube.
if (!read_from_file()) {
selected = 3;
cube_color[0] = 1.0f;
cube_color[1] = 0.0f;
cube_color[2] = 0.0f;
cube_color[3] = 1.0f;
menu_animation = 0.0f;
menu_active = false;
menu_show_animation = false;
menu_hide_animation = false;
}
//Initialize positions of graphics assets on the screen, but don't resize the surface
if (EXIT_FAILURE == resize(NULL)) {
fprintf(stderr, "Initialize surface\n");
return EXIT_FAILURE;
}
//Common gl setup
glShadeModel(GL_SMOOTH);
glClearColor(0.775f, 0.775f, 0.775f, 1.0f);
glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient);
glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);
glLightfv(GL_LIGHT0, GL_POSITION, light_pos);
glLightfv(GL_LIGHT0, GL_SPOT_DIRECTION, light_direction);
glEnable(GL_CULL_FACE);
return EXIT_SUCCESS;
}
GameLogic::GameLogic(Platform &platform)
: HawkInputHandler()
, m_platform(platform)
, m_shutdown(false)
, m_gamePaused(true)
, m_gameFinished(false)
, m_state(FetchUser)
, m_scoreTime(0)
, m_resumeTime(0)
, m_score(0)
, m_leaderBoardReady(false)
, m_timeStep(1.0f / 60.0f)
, m_velocityIterations(6)
, m_positionIterations(2)
, m_world(b2Vec2(0.0f, -10.0f))
, m_player(0)
, m_contactListener(m_clickReverb)
{
m_backgroundMusic.load("app/native/background.wav");
m_click1.load("app/native/click1.wav");
m_click2.load("app/native/click2.wav");
m_clickReverb.load("app/native/clickreverb.wav");
m_blockFall.load("app/native/blockfall.wav");
m_platform.setEventHandler(this);
m_platform.getSize(m_sceneWidth, m_sceneHeight);
int dpi = m_platform.getDPI();
int point_size = (int) (15.0f / ((float) dpi / 170.0f));
/* As bbutil renders text using device-specifc dpi, we need to compute
* a point size for the font, so that the text string fits into the bubble.
* Note that Playbook is used as a reference point in this equation as we
* know that at dpi of 170, font with point size ofi 15 fits into the
* bubble texture.
*/
m_font = bbutil_load_font("/usr/fonts/font_repository/monotype/arial.ttf", point_size, dpi);
if (!m_font) {
fprintf(stderr, "Unable to load font\n");
}
m_scoreFont = bbutil_load_font("/usr/fonts/font_repository/monotype/arial.ttf", point_size, dpi);
if (!m_scoreFont) {
fprintf(stderr, "Unable to load font\n");
}
m_leaderboardFont = bbutil_load_font("/usr/fonts/font_repository/monotype/arial.ttf", point_size, dpi);
if (!m_scoreFont) {
fprintf(stderr, "Unable to load font\n");
}
//Initialize game sprites
m_smallBlockBelligerent.load("app/native/belligerent_small.png");
m_smallBlockResting.load("app/native/resting_small.png");
m_largeBlockBelligerent.load("app/native/belligerent.png");
m_largeBlockResting.load("app/native/resting.png");
m_background.load("app/native/Background.png");
m_background.setPosition(m_sceneWidth / 2, m_sceneHeight / 2);
m_background.setSize(m_sceneWidth, m_sceneHeight);
m_leaderBoard.load("app/native/leaderboard.png");
m_leaderBoard.setPosition(m_sceneWidth / 2, m_sceneHeight / 2);
m_buttonRegular.load("app/native/button_regular.png");
m_buttonPressed.load("app/native/button_pressed.png");
//Initialize message
float textSizeX, textSizeY;
m_message = "Loading...";
bbutil_measure_text(m_font, m_message, &textSizeX, &textSizeY);
m_messagePosX = (m_sceneWidth - textSizeX) / 2;
m_messagePosY = (m_sceneHeight - textSizeY) / 2;
//Initialize score and timer positions
bbutil_measure_text(m_scoreFont, "123", &textSizeX, &textSizeY);
m_scorePosX = SCORE_OFFSET_X;
m_scorePosY = m_sceneHeight - textSizeY - SCORE_OFFSET_Y;
bbutil_measure_text(m_font, "123", &textSizeX, &textSizeY);
m_timerPosX = TIMER_OFFSET_X;
m_timerPosY = m_scorePosY - textSizeY - TIMER_OFFSET_Y;
//Initialize start button
m_playButton.sizeX = m_buttonRegular.Width();
m_playButton.sizeY = m_buttonRegular.Height();
m_playButton.isPressed = false;
m_playButton.regular = &m_buttonRegular;
m_playButton.pressed = &m_buttonPressed;
m_playButton.font = m_font;
m_playButton.text = "Play Again";
bbutil_measure_text(m_font, m_playButton.text, &textSizeX, &textSizeY);
m_playButton.textX = -textSizeX / 2;
m_playButton.textY = -textSizeY / 2;
m_playButton.setPosition(m_sceneWidth / 2, m_leaderBoard.PosY() - m_leaderBoard.Height() / 2);
//Box2D initialization and scene setup
m_world.SetContactListener(&m_contactListener);
DynamicHawkBodyDef def;
def.world = &m_world;
def.speed = HawkVector(4, 4);
def.burst = HawkVector(8, 8);
def.fixedRotation = true;
for (int i = 0; i < 4; ++i) {
HawkBody* platform = new HawkBody(def);
platform->createSprite("app/native/ground.png");
HawkPoint center((i * (m_sceneWidth / 4)) + (platform->width() / 2), ((i % 2) * 200) + platform->height());
platform->createBody(center);
platform->createFixtureFromSprite();
m_terrain.push_back(platform);
}
m_player = new DynamicHawkBody(def);
m_player->createSprite("app/native/resting.png");
HawkPoint center(m_sceneWidth / 2, m_sceneHeight / 2);
m_player->createBody(center);
m_player->createFixtureFromSprite();
}
int initialize() {
EGLint surface_width, surface_height;
//Load background and button textures
float tex_x = 1.0f, tex_y = 1.0f;
//Load textures for radio buttons
int size_x = 64, size_y = 64;
if (EXIT_SUCCESS
!= bbutil_load_texture("app/native/radio_btn_unselected.png",
NULL, NULL, &tex_x, &tex_y, &radio_btn_unselected)) {
fprintf(stderr, "Unable to load non-selected radio button texture\n");
}
radio_btn_unselected_vertices[0] = 0.0f;
radio_btn_unselected_vertices[1] = 0.0f;
radio_btn_unselected_vertices[2] = size_x;
radio_btn_unselected_vertices[3] = 0.0f;
radio_btn_unselected_vertices[4] = 0.0f;
radio_btn_unselected_vertices[5] = size_y;
radio_btn_unselected_vertices[6] = size_x;
radio_btn_unselected_vertices[7] = size_y;
radio_btn_unselected_tex_coord[0] = 0.0f;
radio_btn_unselected_tex_coord[1] = 0.0f;
radio_btn_unselected_tex_coord[2] = tex_x;
radio_btn_unselected_tex_coord[3] = 0.0f;
radio_btn_unselected_tex_coord[4] = 0.0f;
radio_btn_unselected_tex_coord[5] = tex_y;
radio_btn_unselected_tex_coord[6] = tex_x;
radio_btn_unselected_tex_coord[7] = tex_y;
if (EXIT_SUCCESS
!= bbutil_load_texture("app/native/radio_btn_selected.png", NULL,
NULL, &tex_x, &tex_y, &radio_btn_selected)) {
fprintf(stderr, "Unable to load selected radio button texture\n");
}
radio_btn_selected_vertices[0] = 0.0f;
radio_btn_selected_vertices[1] = 0.0f;
radio_btn_selected_vertices[2] = size_x;
radio_btn_selected_vertices[3] = 0.0f;
radio_btn_selected_vertices[4] = 0.0f;
radio_btn_selected_vertices[5] = size_y;
radio_btn_selected_vertices[6] = size_x;
radio_btn_selected_vertices[7] = size_y;
radio_btn_selected_tex_coord[0] = 0.0f;
radio_btn_selected_tex_coord[1] = 0.0f;
radio_btn_selected_tex_coord[2] = tex_x;
radio_btn_selected_tex_coord[3] = 0.0f;
radio_btn_selected_tex_coord[4] = 0.0f;
radio_btn_selected_tex_coord[5] = tex_y;
radio_btn_selected_tex_coord[6] = tex_x;
radio_btn_selected_tex_coord[7] = tex_y;
button_size_x = (float) size_x;
button_size_y = (float) size_y;
eglQuerySurface(egl_disp, egl_surf, EGL_WIDTH, &surface_width);
eglQuerySurface(egl_disp, egl_surf, EGL_HEIGHT, &surface_height);
EGLint err = eglGetError();
if (err != 0x3000) {
fprintf(stderr, "Unable to query EGL surface dimensions\n");
return EXIT_FAILURE;
}
width = (float) surface_width;
height = (float) surface_height;
if (EXIT_SUCCESS
!= bbutil_load_texture("app/native/background-landscape.png", NULL, NULL,
&tex_x, &tex_y, &background_landscape)) {
fprintf(stderr, "Unable to load landscape background texture\n");
}
size_x = (width > height) ? width : height;
size_y = (width > height) ? height : width;
background_landscape_vertices[0] = 0.0f;
background_landscape_vertices[1] = 0.0f;
background_landscape_vertices[2] = size_x;
background_landscape_vertices[3] = 0.0f;
background_landscape_vertices[4] = 0.0f;
background_landscape_vertices[5] = size_y;
background_landscape_vertices[6] = size_x;
background_landscape_vertices[7] = size_y;
background_landscape_tex_coord[0] = 0.0f;
background_landscape_tex_coord[1] = 0.0f;
background_landscape_tex_coord[2] = tex_x;
background_landscape_tex_coord[3] = 0.0f;
background_landscape_tex_coord[4] = 0.0f;
background_landscape_tex_coord[5] = tex_y;
background_landscape_tex_coord[6] = tex_x;
background_landscape_tex_coord[7] = tex_y;
if (EXIT_SUCCESS
!= bbutil_load_texture("app/native/background-portrait.png", NULL, NULL,
&tex_x, &tex_y, &background_portrait)) {
fprintf(stderr, "Unable to load portrait background texture\n");
}
size_x = (height > width) ? width : height;
size_y = (height > width) ? height : width;
background_portrait_vertices[0] = 0.0f;
background_portrait_vertices[1] = 0.0f;
background_portrait_vertices[2] = size_x;
background_portrait_vertices[3] = 0.0f;
background_portrait_vertices[4] = 0.0f;
background_portrait_vertices[5] = size_y;
background_portrait_vertices[6] = size_x;
background_portrait_vertices[7] = size_y;
background_portrait_tex_coord[0] = 0.0f;
background_portrait_tex_coord[1] = 0.0f;
background_portrait_tex_coord[2] = tex_x;
background_portrait_tex_coord[3] = 0.0f;
background_portrait_tex_coord[4] = 0.0f;
background_portrait_tex_coord[5] = tex_y;
background_portrait_tex_coord[6] = tex_x;
background_portrait_tex_coord[7] = tex_y;
angle = 0.0f;
pos_x = 0.0f;
pos_y = 0.0f;
//Load a typical arial font to use for our color menu
int dpi = bbutil_calculate_dpi(screen_cxt);
if (dpi == EXIT_FAILURE) {
fprintf(stderr, "Unable to calculate dpi\n");
return EXIT_FAILURE;
}
//As bbutil renders text using device-specifc dpi, we need to compute a point size
//for the font, so that the text string fits into the bubble. Note that Playbook is used
//as a reference point in this equation as we know that at dpi of 170, font with point size of
//15 fits into the bubble texture.
int point_size = (int)(15.0f / ((float)dpi / 170.0f ));
font = bbutil_load_font("/usr/fonts/font_repository/monotype/arial.ttf", point_size, dpi);
if (!font) {
return EXIT_FAILURE;
}
float text_width, text_height;
bbutil_measure_text(font, "Color Menu", &text_width, &text_height);
menu_height = text_height + 10.0f + button_size_y * 4;
//See if a savefile exists. If not, initialize to a hidden menu and a red cube.
if (!read_from_file()) {
selected = 3;
cube_color[0] = 1.0f;
cube_color[1] = 0.0f;
cube_color[2] = 0.0f;
cube_color[3] = 1.0f;
menu_animation = 0.0f;
menu_active = false;
menu_show_animation = false;
menu_hide_animation = false;
}
//Initialize positions of graphics assets on the screen, but don't resize the surface
if (EXIT_FAILURE == resize(NULL)) {
fprintf(stderr, "Initialize surface\n");
return EXIT_FAILURE;
}
//Common gl setup
glShadeModel(GL_SMOOTH);
glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient);
glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);
glLightfv(GL_LIGHT0, GL_POSITION, light_pos);
glLightfv(GL_LIGHT0, GL_SPOT_DIRECTION, light_direction);
glEnable(GL_CULL_FACE);
menu_show_animation = true;
return EXIT_SUCCESS;
}
int init() {
EGLint surface_width, surface_height;
//Load background texture
float tex_x, tex_y;
int size_x, size_y;
if (EXIT_SUCCESS
!= bbutil_load_texture("app/native/HelloWorld_bubble_portrait.png",
&size_x, &size_y, &tex_x, &tex_y, &background)) {
fprintf(stderr, "Unable to load background texture\n");
return EXIT_FAILURE;
}
//Query width and height of the window surface created by utility code
eglQuerySurface(egl_disp, egl_surf, EGL_WIDTH, &surface_width);
eglQuerySurface(egl_disp, egl_surf, EGL_HEIGHT, &surface_height);
EGLint err = eglGetError();
if (err != 0x3000) {
fprintf(stderr, "Unable to query EGL surface dimensions\n");
return EXIT_FAILURE;
}
width = (float) surface_width;
height = (float) surface_height;
int dpi = bbutil_calculate_dpi(screen_ctx);
//As bbutil renders text using device-specifc dpi, we need to compute a point size
//for the font, so that the text string fits into the bubble. We use 15 pt as our
//font size.
//
// This app assumes the use of a Z10 in portrait mode. For other devices and
// orientations, you need to modify the code and settings accordingly.
// font with point size of
//15 fits into the bubble texture.
const float Z10_DPI = 358.0f;
const float FONT_PT_SIZE = 15.0f;
float stretch_factor = (float)surface_width / (float)size_x;
int point_size = (int)(FONT_PT_SIZE * stretch_factor / ((float)dpi / Z10_DPI ));
font = bbutil_load_font("/usr/fonts/font_repository/monotype/arial.ttf", point_size, dpi);
if (!font) {
return EXIT_FAILURE;
}
//Initialize GL for 2D rendering
glViewport(0, 0, (int) width, (int) height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrthof(0.0f, width / height, 0.0f, 1.0f, -1.0f, 1.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
//Set world coordinates to coincide with screen pixels
glScalef(1.0f / height, 1.0f / height, 1.0f);
float text_width, text_height;
bbutil_measure_text(font, message, &text_width, &text_height);
pos_x = (width - text_width) / 2;
pos_y = height / 2;
//Setup background polygon
vertices[0] = 0.0f;
vertices[1] = 0.0f;
vertices[2] = width;
vertices[3] = 0.0f;
vertices[4] = 0.0f;
vertices[5] = height;
vertices[6] = width;
vertices[7] = height;
tex_coord[0] = 0.0f;
tex_coord[1] = 0.0f;
tex_coord[2] = tex_x;
tex_coord[3] = 0.0f;
tex_coord[4] = 0.0f;
tex_coord[5] = tex_y;
tex_coord[6] = tex_x;
tex_coord[7] = tex_y;
return EXIT_SUCCESS;
}
