minetest/src/client/renderingengine.cpp

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/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
Copyright (C) 2017 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <IrrlichtDevice.h>
#include <irrlicht.h>
#include "fontengine.h"
#include "client.h"
#include "clouds.h"
#include "util/numeric.h"
#include "guiscalingfilter.h"
#include "localplayer.h"
#include "client/hud.h"
#include "camera.h"
#include "minimap.h"
#include "clientmap.h"
#include "renderingengine.h"
#include "render/core.h"
#include "render/factory.h"
#include "inputhandler.h"
#include "gettext.h"
#if !defined(_WIN32) && !defined(__APPLE__) && !defined(__ANDROID__) && \
!defined(SERVER) && !defined(__HAIKU__)
#define XORG_USED
#endif
#ifdef XORG_USED
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#endif
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#ifdef __ANDROID__
#include "filesys.h"
#endif
RenderingEngine *RenderingEngine::s_singleton = nullptr;
RenderingEngine::RenderingEngine(IEventReceiver *receiver)
{
sanity_check(!s_singleton);
// Resolution selection
bool fullscreen = g_settings->getBool("fullscreen");
u16 screen_w = g_settings->getU16("screen_w");
u16 screen_h = g_settings->getU16("screen_h");
// bpp, fsaa, vsync
bool vsync = g_settings->getBool("vsync");
u16 bits = g_settings->getU16("fullscreen_bpp");
u16 fsaa = g_settings->getU16("fsaa");
// stereo buffer required for pageflip stereo
bool stereo_buffer = g_settings->get("3d_mode") == "pageflip";
// Determine driver
video::E_DRIVER_TYPE driverType = video::EDT_OPENGL;
const std::string &driverstring = g_settings->get("video_driver");
std::vector<video::E_DRIVER_TYPE> drivers =
RenderingEngine::getSupportedVideoDrivers();
u32 i;
for (i = 0; i != drivers.size(); i++) {
if (!strcasecmp(driverstring.c_str(),
RenderingEngine::getVideoDriverName(drivers[i]))) {
driverType = drivers[i];
break;
}
}
if (i == drivers.size()) {
errorstream << "Invalid video_driver specified; "
"defaulting to opengl"
<< std::endl;
}
SIrrlichtCreationParameters params = SIrrlichtCreationParameters();
params.DriverType = driverType;
params.WindowSize = core::dimension2d<u32>(screen_w, screen_h);
params.Bits = bits;
params.AntiAlias = fsaa;
params.Fullscreen = fullscreen;
params.Stencilbuffer = false;
params.Stereobuffer = stereo_buffer;
params.Vsync = vsync;
params.EventReceiver = receiver;
params.HighPrecisionFPU = g_settings->getBool("high_precision_fpu");
params.ZBufferBits = 24;
#ifdef __ANDROID__
// clang-format off
params.PrivateData = porting::app_global;
params.OGLES2ShaderPath = std::string(porting::path_user + DIR_DELIM + "media" +
DIR_DELIM + "Shaders" + DIR_DELIM).c_str();
// clang-format on
#endif
m_device = createDeviceEx(params);
driver = m_device->getVideoDriver();
s_singleton = this;
}
RenderingEngine::~RenderingEngine()
{
core.reset();
m_device->drop();
s_singleton = nullptr;
}
v2u32 RenderingEngine::getWindowSize() const
{
if (core)
return core->getVirtualSize();
return m_device->getVideoDriver()->getScreenSize();
}
void RenderingEngine::setResizable(bool resize)
{
m_device->setResizable(resize);
}
bool RenderingEngine::print_video_modes()
{
IrrlichtDevice *nulldevice;
bool vsync = g_settings->getBool("vsync");
u16 fsaa = g_settings->getU16("fsaa");
MyEventReceiver *receiver = new MyEventReceiver();
SIrrlichtCreationParameters params = SIrrlichtCreationParameters();
params.DriverType = video::EDT_NULL;
params.WindowSize = core::dimension2d<u32>(640, 480);
params.Bits = 24;
params.AntiAlias = fsaa;
params.Fullscreen = false;
params.Stencilbuffer = false;
params.Vsync = vsync;
params.EventReceiver = receiver;
params.HighPrecisionFPU = g_settings->getBool("high_precision_fpu");
nulldevice = createDeviceEx(params);
if (!nulldevice) {
delete receiver;
return false;
}
std::cout << _("Available video modes (WxHxD):") << std::endl;
video::IVideoModeList *videomode_list = nulldevice->getVideoModeList();
if (videomode_list != NULL) {
s32 videomode_count = videomode_list->getVideoModeCount();
core::dimension2d<u32> videomode_res;
s32 videomode_depth;
for (s32 i = 0; i < videomode_count; ++i) {
videomode_res = videomode_list->getVideoModeResolution(i);
videomode_depth = videomode_list->getVideoModeDepth(i);
std::cout << videomode_res.Width << "x" << videomode_res.Height
<< "x" << videomode_depth << std::endl;
}
std::cout << _("Active video mode (WxHxD):") << std::endl;
videomode_res = videomode_list->getDesktopResolution();
videomode_depth = videomode_list->getDesktopDepth();
std::cout << videomode_res.Width << "x" << videomode_res.Height << "x"
<< videomode_depth << std::endl;
}
nulldevice->drop();
delete receiver;
return videomode_list != NULL;
}
bool RenderingEngine::setupTopLevelWindow(const std::string &name)
{
// FIXME: It would make more sense for there to be a switch of some
// sort here that would call the correct toplevel setup methods for
// the environment Minetest is running in but for now not deviating
// from the original pattern.
/* Setting Xorg properties for the top level window */
setupTopLevelXorgWindow(name);
/* Done with Xorg properties */
/* Setting general properties for the top level window */
verbosestream << "Client: Configuring general top level"
<< " window properties"
<< std::endl;
bool result = setWindowIcon();
verbosestream << "Client: Finished configuring general top level"
<< " window properties"
<< std::endl;
/* Done with general properties */
// FIXME: setWindowIcon returns a bool result but it is unused.
// For now continue to return this result.
return result;
}
void RenderingEngine::setupTopLevelXorgWindow(const std::string &name)
{
#ifdef XORG_USED
const video::SExposedVideoData exposedData = driver->getExposedVideoData();
Display *x11_dpl = reinterpret_cast<Display *>(exposedData.OpenGLLinux.X11Display);
if (x11_dpl == NULL) {
warningstream << "Client: Could not find X11 Display in ExposedVideoData"
<< std::endl;
return;
}
verbosestream << "Client: Configuring Xorg specific top level"
<< " window properties"
<< std::endl;
Window x11_win = reinterpret_cast<Window>(exposedData.OpenGLLinux.X11Window);
// Set application name and class hints. For now name and class are the same.
XClassHint *classhint = XAllocClassHint();
classhint->res_name = const_cast<char *>(name.c_str());
classhint->res_class = const_cast<char *>(name.c_str());
XSetClassHint(x11_dpl, x11_win, classhint);
XFree(classhint);
// FIXME: In the future WMNormalHints should be set ... e.g see the
// gtk/gdk code (gdk/x11/gdksurface-x11.c) for the setup_top_level
// method. But for now (as it would require some significant changes)
// leave the code as is.
// The following is borrowed from the above gdk source for setting top
// level windows. The source indicates and the Xlib docs suggest that
// this will set the WM_CLIENT_MACHINE and WM_LOCAL_NAME. This will not
// set the WM_CLIENT_MACHINE to a Fully Qualified Domain Name (FQDN) which is
// required by the Extended Window Manager Hints (EWMH) spec when setting
// the _NET_WM_PID (see further down) but running Minetest in an env
// where the window manager is on another machine from Minetest (therefore
// making the PID useless) is not expected to be a problem. Further
// more, using gtk/gdk as the model it would seem that not using a FQDN is
// not an issue for modern Xorg window managers.
verbosestream << "Client: Setting Xorg window manager Properties"
<< std::endl;
XSetWMProperties (x11_dpl, x11_win, NULL, NULL, NULL, 0, NULL, NULL, NULL);
// Set the _NET_WM_PID window property according to the EWMH spec. _NET_WM_PID
// (in conjunction with WM_CLIENT_MACHINE) can be used by window managers to
// force a shutdown of an application if it doesn't respond to the destroy
// window message.
verbosestream << "Client: Setting Xorg _NET_WM_PID extened window manager property"
<< std::endl;
Atom NET_WM_PID = XInternAtom(x11_dpl, "_NET_WM_PID", false);
pid_t pid = getpid();
infostream << "Client: PID is '" << static_cast<long>(pid) << "'"
<< std::endl;
XChangeProperty(x11_dpl, x11_win, NET_WM_PID,
XA_CARDINAL, 32, PropModeReplace,
reinterpret_cast<unsigned char *>(&pid),1);
// Set the WM_CLIENT_LEADER window property here. Minetest has only one
// window and that window will always be the leader.
verbosestream << "Client: Setting Xorg WM_CLIENT_LEADER property"
<< std::endl;
Atom WM_CLIENT_LEADER = XInternAtom(x11_dpl, "WM_CLIENT_LEADER", false);
XChangeProperty (x11_dpl, x11_win, WM_CLIENT_LEADER,
XA_WINDOW, 32, PropModeReplace,
reinterpret_cast<unsigned char *>(&x11_win), 1);
verbosestream << "Client: Finished configuring Xorg specific top level"
<< " window properties"
<< std::endl;
#endif
}
bool RenderingEngine::setWindowIcon()
{
#if defined(XORG_USED)
#if RUN_IN_PLACE
return setXorgWindowIconFromPath(
porting::path_share + "/misc/" PROJECT_NAME "-xorg-icon-128.png");
#else
// We have semi-support for reading in-place data if we are
// compiled with RUN_IN_PLACE. Don't break with this and
// also try the path_share location.
return setXorgWindowIconFromPath(
ICON_DIR "/hicolor/128x128/apps/" PROJECT_NAME ".png") ||
setXorgWindowIconFromPath(porting::path_share + "/misc/" PROJECT_NAME
"-xorg-icon-128.png");
#endif
#elif defined(_WIN32)
const video::SExposedVideoData exposedData = driver->getExposedVideoData();
HWND hWnd; // Window handle
switch (driver->getDriverType()) {
case video::EDT_DIRECT3D8:
hWnd = reinterpret_cast<HWND>(exposedData.D3D8.HWnd);
break;
case video::EDT_DIRECT3D9:
hWnd = reinterpret_cast<HWND>(exposedData.D3D9.HWnd);
break;
case video::EDT_OPENGL:
hWnd = reinterpret_cast<HWND>(exposedData.OpenGLWin32.HWnd);
break;
default:
return false;
}
// Load the ICON from resource file
const HICON hicon = LoadIcon(GetModuleHandle(NULL),
MAKEINTRESOURCE(130) // The ID of the ICON defined in
// winresource.rc
);
if (hicon) {
SendMessage(hWnd, WM_SETICON, ICON_BIG, reinterpret_cast<LPARAM>(hicon));
SendMessage(hWnd, WM_SETICON, ICON_SMALL,
reinterpret_cast<LPARAM>(hicon));
return true;
}
return false;
#else
return false;
#endif
}
bool RenderingEngine::setXorgWindowIconFromPath(const std::string &icon_file)
{
#ifdef XORG_USED
video::IImageLoader *image_loader = NULL;
u32 cnt = driver->getImageLoaderCount();
for (u32 i = 0; i < cnt; i++) {
if (driver->getImageLoader(i)->isALoadableFileExtension(
icon_file.c_str())) {
image_loader = driver->getImageLoader(i);
break;
}
}
if (!image_loader) {
warningstream << "Could not find image loader for file '" << icon_file
<< "'" << std::endl;
return false;
}
io::IReadFile *icon_f =
m_device->getFileSystem()->createAndOpenFile(icon_file.c_str());
if (!icon_f) {
warningstream << "Could not load icon file '" << icon_file << "'"
<< std::endl;
return false;
}
video::IImage *img = image_loader->loadImage(icon_f);
if (!img) {
warningstream << "Could not load icon file '" << icon_file << "'"
<< std::endl;
icon_f->drop();
return false;
}
u32 height = img->getDimension().Height;
u32 width = img->getDimension().Width;
size_t icon_buffer_len = 2 + height * width;
long *icon_buffer = new long[icon_buffer_len];
icon_buffer[0] = width;
icon_buffer[1] = height;
for (u32 x = 0; x < width; x++) {
for (u32 y = 0; y < height; y++) {
video::SColor col = img->getPixel(x, y);
long pixel_val = 0;
pixel_val |= (u8)col.getAlpha() << 24;
pixel_val |= (u8)col.getRed() << 16;
pixel_val |= (u8)col.getGreen() << 8;
pixel_val |= (u8)col.getBlue();
icon_buffer[2 + x + y * width] = pixel_val;
}
}
img->drop();
icon_f->drop();
const video::SExposedVideoData &video_data = driver->getExposedVideoData();
Display *x11_dpl = (Display *)video_data.OpenGLLinux.X11Display;
if (x11_dpl == NULL) {
warningstream << "Could not find x11 display for setting its icon."
<< std::endl;
delete[] icon_buffer;
return false;
}
Window x11_win = (Window)video_data.OpenGLLinux.X11Window;
Atom net_wm_icon = XInternAtom(x11_dpl, "_NET_WM_ICON", False);
Atom cardinal = XInternAtom(x11_dpl, "CARDINAL", False);
XChangeProperty(x11_dpl, x11_win, net_wm_icon, cardinal, 32, PropModeReplace,
(const unsigned char *)icon_buffer, icon_buffer_len);
delete[] icon_buffer;
#endif
return true;
}
/*
Draws a screen with a single text on it.
Text will be removed when the screen is drawn the next time.
Additionally, a progressbar can be drawn when percent is set between 0 and 100.
*/
void RenderingEngine::_draw_load_screen(const std::wstring &text,
gui::IGUIEnvironment *guienv, ITextureSource *tsrc, float dtime,
int percent, bool clouds)
{
v2u32 screensize = RenderingEngine::get_instance()->getWindowSize();
v2s32 textsize(g_fontengine->getTextWidth(text), g_fontengine->getLineHeight());
v2s32 center(screensize.X / 2, screensize.Y / 2);
core::rect<s32> textrect(center - textsize / 2, center + textsize / 2);
gui::IGUIStaticText *guitext =
guienv->addStaticText(text.c_str(), textrect, false, false);
guitext->setTextAlignment(gui::EGUIA_CENTER, gui::EGUIA_UPPERLEFT);
bool cloud_menu_background = clouds && g_settings->getBool("menu_clouds");
if (cloud_menu_background) {
g_menuclouds->step(dtime * 3);
g_menuclouds->render();
get_video_driver()->beginScene(
true, true, video::SColor(255, 140, 186, 250));
g_menucloudsmgr->drawAll();
} else
get_video_driver()->beginScene(true, true, video::SColor(255, 0, 0, 0));
// draw progress bar
if ((percent >= 0) && (percent <= 100)) {
video::ITexture *progress_img = tsrc->getTexture("progress_bar.png");
video::ITexture *progress_img_bg =
tsrc->getTexture("progress_bar_bg.png");
if (progress_img && progress_img_bg) {
#ifndef __ANDROID__
const core::dimension2d<u32> &img_size =
progress_img_bg->getSize();
u32 imgW = rangelim(img_size.Width, 200, 600);
u32 imgH = rangelim(img_size.Height, 24, 72);
#else
const core::dimension2d<u32> img_size(256, 48);
float imgRatio = (float)img_size.Height / img_size.Width;
u32 imgW = screensize.X / 2.2f;
u32 imgH = floor(imgW * imgRatio);
#endif
v2s32 img_pos((screensize.X - imgW) / 2,
(screensize.Y - imgH) / 2);
draw2DImageFilterScaled(get_video_driver(), progress_img_bg,
core::rect<s32>(img_pos.X, img_pos.Y,
img_pos.X + imgW,
img_pos.Y + imgH),
core::rect<s32>(0, 0, img_size.Width,
img_size.Height),
0, 0, true);
draw2DImageFilterScaled(get_video_driver(), progress_img,
core::rect<s32>(img_pos.X, img_pos.Y,
img_pos.X + (percent * imgW) / 100,
img_pos.Y + imgH),
core::rect<s32>(0, 0,
(percent * img_size.Width) / 100,
img_size.Height),
0, 0, true);
}
}
guienv->drawAll();
get_video_driver()->endScene();
guitext->remove();
}
/*
Draws the menu scene including (optional) cloud background.
*/
void RenderingEngine::_draw_menu_scene(gui::IGUIEnvironment *guienv,
float dtime, bool clouds)
{
bool cloud_menu_background = clouds && g_settings->getBool("menu_clouds");
if (cloud_menu_background) {
g_menuclouds->step(dtime * 3);
g_menuclouds->render();
get_video_driver()->beginScene(
true, true, video::SColor(255, 140, 186, 250));
g_menucloudsmgr->drawAll();
} else
get_video_driver()->beginScene(true, true, video::SColor(255, 0, 0, 0));
guienv->drawAll();
get_video_driver()->endScene();
}
std::vector<core::vector3d<u32>> RenderingEngine::getSupportedVideoModes()
{
IrrlichtDevice *nulldevice = createDevice(video::EDT_NULL);
sanity_check(nulldevice);
std::vector<core::vector3d<u32>> mlist;
video::IVideoModeList *modelist = nulldevice->getVideoModeList();
s32 num_modes = modelist->getVideoModeCount();
for (s32 i = 0; i != num_modes; i++) {
core::dimension2d<u32> mode_res = modelist->getVideoModeResolution(i);
u32 mode_depth = (u32)modelist->getVideoModeDepth(i);
mlist.emplace_back(mode_res.Width, mode_res.Height, mode_depth);
}
nulldevice->drop();
return mlist;
}
std::vector<irr::video::E_DRIVER_TYPE> RenderingEngine::getSupportedVideoDrivers()
{
std::vector<irr::video::E_DRIVER_TYPE> drivers;
for (int i = 0; i != irr::video::EDT_COUNT; i++) {
if (irr::IrrlichtDevice::isDriverSupported((irr::video::E_DRIVER_TYPE)i))
drivers.push_back((irr::video::E_DRIVER_TYPE)i);
}
return drivers;
}
void RenderingEngine::_initialize(Client *client, Hud *hud)
{
const std::string &draw_mode = g_settings->get("3d_mode");
core.reset(createRenderingCore(draw_mode, m_device, client, hud));
core->initialize();
}
void RenderingEngine::_finalize()
{
core.reset();
}
void RenderingEngine::_draw_scene(video::SColor skycolor, bool show_hud,
bool show_minimap, bool draw_wield_tool, bool draw_crosshair)
{
core->draw(skycolor, show_hud, show_minimap, draw_wield_tool, draw_crosshair);
}
const char *RenderingEngine::getVideoDriverName(irr::video::E_DRIVER_TYPE type)
{
static const char *driver_ids[] = {
"null",
"software",
"burningsvideo",
"direct3d8",
"direct3d9",
"opengl",
"ogles1",
"ogles2",
};
return driver_ids[type];
}
const char *RenderingEngine::getVideoDriverFriendlyName(irr::video::E_DRIVER_TYPE type)
{
static const char *driver_names[] = {
"NULL Driver",
"Software Renderer",
"Burning's Video",
"Direct3D 8",
"Direct3D 9",
"OpenGL",
"OpenGL ES1",
"OpenGL ES2",
};
return driver_names[type];
}
#ifndef __ANDROID__
#ifdef XORG_USED
static float calcDisplayDensity()
{
const char *current_display = getenv("DISPLAY");
if (current_display != NULL) {
Display *x11display = XOpenDisplay(current_display);
if (x11display != NULL) {
/* try x direct */
int dh = DisplayHeight(x11display, 0);
int dw = DisplayWidth(x11display, 0);
int dh_mm = DisplayHeightMM(x11display, 0);
int dw_mm = DisplayWidthMM(x11display, 0);
XCloseDisplay(x11display);
if (dh_mm != 0 && dw_mm != 0) {
float dpi_height = floor(dh / (dh_mm * 0.039370) + 0.5);
float dpi_width = floor(dw / (dw_mm * 0.039370) + 0.5);
return std::max(dpi_height, dpi_width) / 96.0;
}
}
}
/* return manually specified dpi */
return g_settings->getFloat("screen_dpi") / 96.0;
}
float RenderingEngine::getDisplayDensity()
{
static float cached_display_density = calcDisplayDensity();
return cached_display_density;
}
#else // XORG_USED
float RenderingEngine::getDisplayDensity()
{
return g_settings->getFloat("screen_dpi") / 96.0;
}
#endif // XORG_USED
v2u32 RenderingEngine::getDisplaySize()
{
IrrlichtDevice *nulldevice = createDevice(video::EDT_NULL);
core::dimension2d<u32> deskres =
nulldevice->getVideoModeList()->getDesktopResolution();
nulldevice->drop();
return deskres;
}
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#else // __ANDROID__
float RenderingEngine::getDisplayDensity()
{
return porting::getDisplayDensity();
}
v2u32 RenderingEngine::getDisplaySize()
{
return porting::getDisplaySize();
}
#endif // __ANDROID__