minetest/src/client/renderingengine.cpp
2022-12-25 10:57:39 -05:00

650 lines
18 KiB
C++

/*
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 "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"
#include "../gui/guiSkin.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
#ifdef _WIN32
#include <windows.h>
#include <winuser.h>
#endif
#if ENABLE_GLES
#include "filesys.h"
#endif
RenderingEngine *RenderingEngine::s_singleton = nullptr;
const float RenderingEngine::BASE_BLOOM_STRENGTH = 8.0f;
static gui::GUISkin *createSkin(gui::IGUIEnvironment *environment,
gui::EGUI_SKIN_TYPE type, video::IVideoDriver *driver)
{
gui::GUISkin *skin = new gui::GUISkin(type, driver);
gui::IGUIFont *builtinfont = environment->getBuiltInFont();
gui::IGUIFontBitmap *bitfont = nullptr;
if (builtinfont && builtinfont->getType() == gui::EGFT_BITMAP)
bitfont = (gui::IGUIFontBitmap*)builtinfont;
gui::IGUISpriteBank *bank = 0;
skin->setFont(builtinfont);
if (bitfont)
bank = bitfont->getSpriteBank();
skin->setSpriteBank(bank);
return skin;
}
RenderingEngine::RenderingEngine(IEventReceiver *receiver)
{
sanity_check(!s_singleton);
// Resolution selection
bool fullscreen = g_settings->getBool("fullscreen");
#ifdef __ANDROID__
u16 screen_w = 0, screen_h = 0;
#else
u16 screen_w = std::max<u16>(g_settings->getU16("screen_w"), 1);
u16 screen_h = std::max<u16>(g_settings->getU16("screen_h"), 1);
#endif
// bpp, fsaa, vsync
bool vsync = g_settings->getBool("vsync");
u16 fsaa = g_settings->getU16("fsaa");
// 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::getVideoDriverInfo(drivers[i]).name.c_str())) {
driverType = drivers[i];
break;
}
}
if (i == drivers.size()) {
errorstream << "Invalid video_driver specified; "
"defaulting to opengl"
<< std::endl;
}
SIrrlichtCreationParameters params = SIrrlichtCreationParameters();
if (tracestream)
params.LoggingLevel = irr::ELL_DEBUG;
params.DriverType = driverType;
params.WindowSize = core::dimension2d<u32>(screen_w, screen_h);
params.AntiAlias = fsaa;
params.Fullscreen = fullscreen;
params.Stencilbuffer = false;
params.Vsync = vsync;
params.EventReceiver = receiver;
params.HighPrecisionFPU = true;
#ifdef __ANDROID__
params.PrivateData = porting::app_global;
#endif
#if ENABLE_GLES
// there is no standardized path for these on desktop
std::string rel_path = std::string("client") + DIR_DELIM
+ "shaders" + DIR_DELIM + "Irrlicht";
params.OGLES2ShaderPath = (porting::path_share + DIR_DELIM + rel_path + DIR_DELIM).c_str();
#endif
m_device = createDeviceEx(params);
driver = m_device->getVideoDriver();
s_singleton = this;
auto skin = createSkin(m_device->getGUIEnvironment(),
gui::EGST_WINDOWS_METALLIC, driver);
m_device->getGUIEnvironment()->setSkin(skin);
skin->drop();
}
RenderingEngine::~RenderingEngine()
{
core.reset();
m_device->closeDevice();
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);
}
void RenderingEngine::removeMesh(const scene::IMesh* mesh)
{
m_device->getSceneManager()->getMeshCache()->removeMesh(mesh);
}
void RenderingEngine::cleanupMeshCache()
{
auto mesh_cache = m_device->getSceneManager()->getMeshCache();
while (mesh_cache->getMeshCount() != 0) {
if (scene::IAnimatedMesh *mesh = mesh_cache->getMeshByIndex(0))
mesh_cache->removeMesh(mesh);
}
}
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.
/* Setting Xorg properties for the top level window */
setupTopLevelXorgWindow(name);
/* Setting general properties for the top level window */
verbosestream << "Client: Configuring general top level"
<< " window properties"
<< std::endl;
bool result = setWindowIcon();
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 X11-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 extended window manager property"
<< std::endl;
Atom NET_WM_PID = XInternAtom(x11_dpl, "_NET_WM_PID", false);
pid_t pid = getpid();
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);
#endif
}
#ifdef _WIN32
static bool getWindowHandle(irr::video::IVideoDriver *driver, HWND &hWnd)
{
const video::SExposedVideoData exposedData = driver->getExposedVideoData();
switch (driver->getDriverType()) {
#if ENABLE_GLES
case video::EDT_OGLES1:
case video::EDT_OGLES2:
#endif
case video::EDT_OPENGL:
hWnd = reinterpret_cast<HWND>(exposedData.OpenGLWin32.HWnd);
break;
default:
return false;
}
return true;
}
#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)
HWND hWnd; // Window handle
if (!getWindowHandle(driver, hWnd))
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 = 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) * getDisplayDensity();
u32 imgH = rangelim(img_size.Height, 24, 72) * getDisplayDensity();
#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<irr::video::E_DRIVER_TYPE> RenderingEngine::getSupportedVideoDrivers()
{
// Only check these drivers.
// We do not support software and D3D in any capacity.
static const irr::video::E_DRIVER_TYPE glDrivers[4] = {
irr::video::EDT_NULL,
irr::video::EDT_OPENGL,
irr::video::EDT_OGLES1,
irr::video::EDT_OGLES2,
};
std::vector<irr::video::E_DRIVER_TYPE> drivers;
for (int i = 0; i < 4; i++) {
if (irr::IrrlichtDevice::isDriverSupported(glDrivers[i]))
drivers.push_back(glDrivers[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 VideoDriverInfo &RenderingEngine::getVideoDriverInfo(irr::video::E_DRIVER_TYPE type)
{
static const std::unordered_map<int, VideoDriverInfo> driver_info_map = {
{(int)video::EDT_NULL, {"null", "NULL Driver"}},
{(int)video::EDT_OPENGL, {"opengl", "OpenGL"}},
{(int)video::EDT_OGLES1, {"ogles1", "OpenGL ES1"}},
{(int)video::EDT_OGLES2, {"ogles2", "OpenGL ES2"}},
};
return driver_info_map.at((int)type);
}
#ifndef __ANDROID__
#if defined(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 std::max(cached_display_density * g_settings->getFloat("display_density_factor"), 0.5f);
}
#elif defined(_WIN32)
static float calcDisplayDensity(irr::video::IVideoDriver *driver)
{
HWND hWnd;
if (getWindowHandle(driver, hWnd)) {
HDC hdc = GetDC(hWnd);
float dpi = GetDeviceCaps(hdc, LOGPIXELSX);
ReleaseDC(hWnd, hdc);
return dpi / 96.0f;
}
/* return manually specified dpi */
return g_settings->getFloat("screen_dpi") / 96.0f;
}
float RenderingEngine::getDisplayDensity()
{
static bool cached = false;
static float display_density;
if (!cached) {
display_density = calcDisplayDensity(get_video_driver());
cached = true;
}
return std::max(display_density * g_settings->getFloat("display_density_factor"), 0.5f);
}
#else
float RenderingEngine::getDisplayDensity()
{
return std::max(g_settings->getFloat("screen_dpi") / 96.0f *
g_settings->getFloat("display_density_factor"), 0.5f);
}
#endif
#else // __ANDROID__
float RenderingEngine::getDisplayDensity()
{
return porting::getDisplayDensity();
}
#endif // __ANDROID__