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bgfx/tools/geometryv/geometryv.cpp

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/*
* Copyright 2019-2019 Attila Kocsis. All rights reserved.
* License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE
*/
#include "common.h"
#include <bgfx/bgfx.h>
#include <bx/commandline.h>
#include <bx/easing.h>
#include <bx/file.h>
#include <bx/math.h>
#include <bx/os.h>
#include <bx/settings.h>
#include <entry/entry.h>
#include <entry/input.h>
#include <entry/cmd.h>
#include <entry/dialog.h>
#include <imgui/imgui.h>
#include <debugdraw/debugdraw.h>
#include <bgfx_utils.h>
#include <tinystl/allocator.h>
#include <tinystl/vector.h>
namespace stl = tinystl;
#include <string>
#include <algorithm>
#include <bgfx/embedded_shader.h>
#include "vs_mesh.bin.h"
#include "fs_mesh.bin.h"
#define SCENE_VIEW_ID 0
#define BGFX_GEOMETRYV_VERSION_MAJOR 1
#define BGFX_GEOMETRYV_VERSION_MINOR 0
static const bgfx::EmbeddedShader s_embeddedShaders[] =
{
BGFX_EMBEDDED_SHADER(vs_mesh),
BGFX_EMBEDDED_SHADER(fs_mesh),
BGFX_EMBEDDED_SHADER_END()
};
static const char* s_attribShortNames[] =
{
"P", // Position
"N", // Normal
"T", // Tangent
"B", // Bitangent
"C0", // Color0
"C1", // Color1
"C2", // Color2
"C3", // Color3
"I", // Indices
"W", // Weight
"TC0", // TexCoord0
"TC1", // TexCoord1
"TC2", // TexCoord2
"TC3", // TexCoord3
"TC4", // TexCoord4
"TC5", // TexCoord5
"TC6", // TexCoord6
"TC7", // TexCoord7
};
BX_STATIC_ASSERT(BX_COUNTOF(s_attribShortNames) == bgfx::Attrib::Count);
static const char* s_supportedExt[] =
{
"bin",
};
struct Binding
{
enum Enum
{
App,
View,
Help,
About,
Count
};
};
static const InputBinding s_bindingApp[] =
{
{ entry::Key::KeyQ, entry::Modifier::None, 1, NULL, "exit" },
{ entry::Key::KeyF, entry::Modifier::None, 1, NULL, "graphics fullscreen" },
INPUT_BINDING_END
};
const char* s_resetCmd =
"view dolly\n"
"view orbit\n"
;
static const InputBinding s_bindingView[] =
{
{ entry::Key::Esc, entry::Modifier::None, 1, NULL, "exit" },
{ entry::Key::Key1, entry::Modifier::None, 1, NULL, "view dolly" },
{ entry::Key::Key0, entry::Modifier::None, 1, NULL, s_resetCmd },
{ entry::Key::Plus, entry::Modifier::None, 1, NULL, "view dolly +0.1" },
{ entry::Key::Minus, entry::Modifier::None, 1, NULL, "view dolly -0.1" },
{ entry::Key::KeyW, entry::Modifier::None, 1, NULL, "view orbit y -0.1" },
{ entry::Key::KeyS, entry::Modifier::None, 1, NULL, "view orbit y +0.1" },
{ entry::Key::KeyA, entry::Modifier::None, 1, NULL, "view orbit x +0.1" },
{ entry::Key::KeyD, entry::Modifier::None, 1, NULL, "view orbit x -0.1" },
{ entry::Key::Up, entry::Modifier::None, 1, NULL, "view file-up" },
{ entry::Key::Down, entry::Modifier::None, 1, NULL, "view file-down" },
{ entry::Key::KeyI, entry::Modifier::None, 1, NULL, "view info" },
{ entry::Key::KeyH, entry::Modifier::None, 1, NULL, "view help" },
{ entry::Key::Return, entry::Modifier::None, 1, NULL, "view files" },
{ entry::Key::Space, entry::Modifier::None, 1, NULL, "view geo\n" },
INPUT_BINDING_END
};
static const InputBinding s_bindingHelp[] =
{
{ entry::Key::Esc, entry::Modifier::None, 1, NULL, "view help" },
{ entry::Key::KeyH, entry::Modifier::None, 1, NULL, "view help" },
INPUT_BINDING_END
};
static const InputBinding s_bindingAbout[] =
{
{ entry::Key::Esc, entry::Modifier::None, 1, NULL, "view about" },
INPUT_BINDING_END
};
static const char* s_bindingName[] =
{
"App",
"View",
"Help",
"About",
};
BX_STATIC_ASSERT(Binding::Count == BX_COUNTOF(s_bindingName) );
static const InputBinding* s_binding[] =
{
s_bindingApp,
s_bindingView,
s_bindingHelp,
s_bindingAbout,
};
BX_STATIC_ASSERT(Binding::Count == BX_COUNTOF(s_binding) );
static const char* s_filter = ""
"Bgfx geometry (bin) | *.bin\n"
;
struct Camera
{
Camera()
{
init(bx::init::Zero, 2.0f, 0.01f, 100.0f);
}
void init(const bx::Vec3& _center, float _distance, float _near, float _far)
{
m_target.curr = _center;
m_target.dest = _center;
m_pos.curr = _center;
m_pos.curr.z += _distance;
m_pos.dest = _center;
m_pos.dest.z += _distance;
m_orbit[0] = 0.0f;
m_orbit[1] = 0.0f;
m_near = _near;
m_far = _far;
}
void mtxLookAt(float* _outViewMtx)
{
bx::mtxLookAt(_outViewMtx, m_pos.curr, m_target.curr);
}
void orbit(float _dx, float _dy)
{
m_orbit[0] += _dx;
m_orbit[1] += _dy;
}
void distance(float _z)
{
_z = bx::clamp(_z, m_near, m_far);
bx::Vec3 toTarget = bx::sub(m_target.dest, m_pos.dest);
bx::Vec3 toTargetNorm = bx::normalize(toTarget);
m_pos.dest = bx::mad(toTargetNorm, -_z, m_target.dest);
}
void dolly(float _dz)
{
const bx::Vec3 toTarget = bx::sub(m_target.dest, m_pos.dest);
const float toTargetLen = bx::length(toTarget);
const float invToTargetLen = 1.0f / (toTargetLen + bx::kFloatSmallest);
const bx::Vec3 toTargetNorm = bx::mul(toTarget, invToTargetLen);
float delta = toTargetLen * _dz;
float newLen = toTargetLen - delta;
if ( (m_near < newLen || _dz < 0.0f)
&& (newLen < m_far || _dz > 0.0f) )
{
m_pos.dest = bx::mad(toTargetNorm, delta, m_pos.dest);
}
}
void consumeOrbit(float _amount)
{
float consume[2];
consume[0] = m_orbit[0] * _amount;
consume[1] = m_orbit[1] * _amount;
m_orbit[0] -= consume[0];
m_orbit[1] -= consume[1];
const bx::Vec3 toPos = bx::sub(m_pos.curr, m_target.curr);
const float toPosLen = bx::length(toPos);
const float invToPosLen = 1.0f / (toPosLen + bx::kFloatSmallest);
const bx::Vec3 toPosNorm = bx::mul(toPos, invToPosLen);
float ll[2];
bx::toLatLong(&ll[0], &ll[1], toPosNorm);
ll[0] += consume[0];
ll[1] -= consume[1];
ll[1] = bx::clamp(ll[1], 0.02f, 0.98f);
const bx::Vec3 tmp = bx::fromLatLong(ll[0], ll[1]);
const bx::Vec3 diff = bx::mul(bx::sub(tmp, toPosNorm), toPosLen);
m_pos.curr = bx::add(m_pos.curr, diff);
m_pos.dest = bx::add(m_pos.dest, diff);
}
void update(float _dt)
{
const float amount = bx::min(_dt / 0.12f, 1.0f);
consumeOrbit(amount);
m_target.curr = bx::lerp(m_target.curr, m_target.dest, amount);
m_pos.curr = bx::lerp(m_pos.curr, m_pos.dest, amount);
}
struct Interp3f
{
bx::Vec3 curr = bx::init::None;
bx::Vec3 dest = bx::init::None;
};
Interp3f m_target;
Interp3f m_pos;
float m_orbit[2];
float m_near, m_far;
};
struct Mouse
{
Mouse()
{
m_dx = 0.0f;
m_dy = 0.0f;
m_prevMx = 0.0f;
m_prevMx = 0.0f;
m_scroll = 0;
m_scrollPrev = 0;
}
void update(float _mx, float _my, int32_t _mz, uint32_t _width, uint32_t _height)
{
const float widthf = float(int32_t(_width));
const float heightf = float(int32_t(_height));
// Delta movement.
m_dx = float(_mx - m_prevMx)/widthf;
m_dy = float(_my - m_prevMy)/heightf;
m_prevMx = _mx;
m_prevMy = _my;
// Scroll.
m_scroll = _mz - m_scrollPrev;
m_scrollPrev = _mz;
}
float m_dx; // Screen space.
float m_dy;
float m_prevMx;
float m_prevMy;
int32_t m_scroll;
int32_t m_scrollPrev;
};
struct View
{
View()
: m_fileIndex(0)
, m_width(1280)
, m_height(720)
, m_help(false)
, m_about(false)
, m_info(false)
, m_files(false)
, m_axes(false)
, m_meshCenter(0.0f,0.0f,0.0f)
, m_meshRadius(1.0f)
, m_idleTimer(0.0f)
{
load();
}
~View()
{
}
int32_t cmd(int32_t _argc, char const* const* _argv)
{
if (_argc >= 2)
{
if (0 == bx::strCmp(_argv[1], "file-up") )
{
m_fileIndex = bx::uint32_satsub(m_fileIndex, 1);
}
else if (0 == bx::strCmp(_argv[1], "file-down") )
{
uint32_t numFiles = bx::uint32_satsub(uint32_t(m_fileList.size() ), 1);
++m_fileIndex;
m_fileIndex = bx::uint32_min(m_fileIndex, numFiles);
}
else if (0 == bx::strCmp(_argv[1], "help") )
{
m_help ^= true;
}
else if (0 == bx::strCmp(_argv[1], "about") )
{
m_about ^= true;
}
else if (0 == bx::strCmp(_argv[1], "save") )
{
save();
}
else if (0 == bx::strCmp(_argv[1], "info") )
{
m_info ^= true;
}
else if (0 == bx::strCmp(_argv[1], "files") )
{
m_files ^= true;
}
else if (0 == bx::strCmp(_argv[1], "dolly") )
{
if (_argc >= 3)
{
float dolly;
bx::fromString(&dolly, _argv[2]);
if (_argv[2][0] == '+'
|| _argv[2][0] == '-')
{
m_camera.dolly(dolly);
m_idleTimer = 0.0f;
}
}
else
{
m_camera.distance(m_meshRadius * 2.0f);
}
}
else if (0 == bx::strCmp(_argv[1], "orbit") )
{
if (_argc >= 4)
{
int axis = (_argv[2][0] == 'x' ? 0 : 1);
float orbit[2] = { 0.0f, 0.0f};
bx::fromString(&orbit[axis], _argv[3]);
m_camera.orbit(orbit[0], orbit[1]);
m_idleTimer = 0.0f;
}
else
{
m_camera.m_target.dest = m_meshCenter;
m_camera.m_pos.dest = m_meshCenter;
m_camera.m_pos.dest.z -= m_meshRadius * 2.0f;
m_camera.m_orbit[0] = 0.0f;
m_camera.m_orbit[1] = 0.0f;
}
}
else if (0 == bx::strCmp(_argv[1], "axes") )
{
m_axes ^= true;
}
}
return 0;
}
static bool sortNameAscending(const std::string& _lhs, const std::string& _rhs)
{
return 0 > bx::strCmpV(_lhs.c_str(), _rhs.c_str() );
}
void updateFileList(const bx::FilePath& _filePath)
{
bx::DirectoryReader dr;
if (bx::open(&dr, _filePath) )
{
m_path = _filePath;
}
else if (bx::open(&dr, _filePath.getPath()) )
{
m_path = _filePath.getPath();
}
else
{
DBG("File path `%s` not found.", _filePath.getCPtr() );
return;
}
bx::Error err;
m_fileList.clear();
while (err.isOk() )
{
bx::FileInfo fi;
bx::read(&dr, fi, &err);
if (err.isOk()
&& bx::FileType::File == fi.type)
{
bx::StringView ext = fi.filePath.getExt();
if (!ext.isEmpty() )
{
ext.set(ext.getPtr()+1, ext.getTerm() );
bool supported = false;
for (uint32_t ii = 0; ii < BX_COUNTOF(s_supportedExt); ++ii)
{
const bx::StringView supportedExt(s_supportedExt[ii]);
if (0 == bx::strCmpI(bx::max(ext.getPtr(), ext.getTerm() - supportedExt.getLength() ), supportedExt) )
{
supported = true;
break;
}
}
if (supported)
{
const bx::StringView fileName = fi.filePath.getFileName();
m_fileList.push_back(std::string(fileName.getPtr(), fileName.getTerm() ) );
}
}
}
}
bx::close(&dr);
std::sort(m_fileList.begin(), m_fileList.end(), sortNameAscending);
m_fileIndex = 0;
uint32_t idx = 0;
const bx::StringView fileName = _filePath.getFileName();
for (FileList::const_iterator it = m_fileList.begin(); it != m_fileList.end(); ++it, ++idx)
{
if (0 == bx::strCmpI(it->c_str(), fileName) )
{
// If it is case-insensitive match then might be correct one, but keep
// searching.
m_fileIndex = idx;
if (0 == bx::strCmp(it->c_str(), fileName) )
{
// If it is exact match we're done.
break;
}
}
}
}
void load()
{
bx::FilePath filePath(bx::Dir::Home);
filePath.join(".config/bgfx/geometryv.ini");
bx::Settings settings(entry::getAllocator() );
bx::FileReader reader;
if (bx::open(&reader, filePath) )
{
bx::read(&reader, settings, bx::ErrorAssert{});
bx::close(&reader);
if (!bx::fromString(&m_width, settings.get("view/width") ) )
{
m_width = 1280;
}
if (!bx::fromString(&m_height, settings.get("view/height") ) )
{
m_height = 720;
}
}
}
void save()
{
bx::FilePath filePath(bx::Dir::Home);
filePath.join(".config/bgfx/geometryv.ini");
if (bx::makeAll(filePath.getPath() ) )
{
bx::Settings settings(entry::getAllocator() );
char tmp[256];
bx::toString(tmp, sizeof(tmp), m_width);
settings.set("view/width", tmp);
bx::toString(tmp, sizeof(tmp), m_height);
settings.set("view/height", tmp);
bx::FileWriter writer;
if (bx::open(&writer, filePath) )
{
bx::write(&writer, settings, bx::ErrorAssert{});
bx::close(&writer);
}
}
}
bx::FilePath m_path;
typedef stl::vector<std::string> FileList;
FileList m_fileList;
uint32_t m_fileIndex;
uint32_t m_width;
uint32_t m_height;
bool m_help;
bool m_about;
bool m_info;
bool m_files;
bool m_axes;
Camera m_camera;
Mouse m_mouse;
bx::Vec3 m_meshCenter;
float m_meshRadius;
float m_idleTimer;
};
int cmdView(CmdContext* /*_context*/, void* _userData, int _argc, char const* const* _argv)
{
View* view = static_cast<View*>(_userData);
return view->cmd(_argc, _argv);
}
template<bx::LerpFn lerpT, bx::EaseFn easeT>
struct InterpolatorT
{
float from;
float to;
float duration;
int64_t offset;
InterpolatorT(float _value)
{
reset(_value);
}
void reset(float _value)
{
from = _value;
to = _value;
duration = 0.0;
offset = bx::getHPCounter();
}
void set(float _value, float _duration)
{
if (_value != to)
{
from = getValue();
to = _value;
duration = _duration;
offset = bx::getHPCounter();
}
}
float getValue()
{
if (isActive() )
{
const double freq = double(bx::getHPFrequency() );
int64_t now = bx::getHPCounter();
float time = (float)(double(now - offset) / freq);
float lerp = bx::clamp(time, 0.0f, duration) / duration;
return lerpT(from, to, easeT(lerp) );
}
return to;
}
bool isActive() const
{
const double freq = double(bx::getHPFrequency() );
int64_t now = bx::getHPCounter();
float time = (float)(double(now - offset) / freq);
float lerp = bx::clamp(time, 0.0f, duration) / duration;
return lerp < 1.0f;
}
};
typedef InterpolatorT<bx::lerp, bx::easeInOutQuad> Interpolator;
void keyBindingHelp(const char* _bindings, const char* _description)
{
ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "%s", _bindings);
ImGui::SameLine(140);
ImGui::Text("%s", _description);
}
void help(const char* _error = NULL)
{
if (NULL != _error)
{
bx::printf("Error:\n%s\n\n", _error);
}
bx::printf(
"geometryv, bgfx geometry viewer tool, version %d.%d.%d.\n"
"Copyright 2019-2019 Attila Kocsis. All rights reserved.\n"
"License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE\n\n"
, BGFX_GEOMETRYV_VERSION_MAJOR
, BGFX_GEOMETRYV_VERSION_MINOR
, BGFX_API_VERSION
);
bx::printf(
"Usage: geometryv <file path>\n"
"\n"
"Supported input file types:\n"
);
for (uint32_t ii = 0; ii < BX_COUNTOF(s_supportedExt); ++ii)
{
bx::printf(" *.%s\n", s_supportedExt[ii]);
}
bx::printf(
"\n"
"Options:\n"
" -h, --help Help.\n"
" -v, --version Version information only.\n"
"\n"
"For additional information, see https://github.com/bkaradzic/bgfx\n"
);
}
int _main_(int _argc, char** _argv)
{
bx::CommandLine cmdLine(_argc, _argv);
if (cmdLine.hasArg('v', "version") )
{
bx::printf(
"geometryv, bgfx geometry viewer tool, version %d.%d.%d.\n"
, BGFX_GEOMETRYV_VERSION_MAJOR
, BGFX_GEOMETRYV_VERSION_MINOR
, BGFX_API_VERSION
);
return bx::kExitSuccess;
}
if (cmdLine.hasArg('h', "help") )
{
help();
return bx::kExitFailure;
}
uint32_t debug = BGFX_DEBUG_TEXT;
inputAddBindings(s_bindingName[Binding::App], s_binding[Binding::App]);
inputAddBindings(s_bindingName[Binding::View], s_binding[Binding::View]);
View view;
cmdAdd("view", cmdView, &view);
entry::setWindowFlags(entry::WindowHandle{0}, ENTRY_WINDOW_FLAG_ASPECT_RATIO, false);
entry::setWindowSize(entry::WindowHandle{0}, view.m_width, view.m_height);
bgfx::Init init;
init.resolution.width = view.m_width;
init.resolution.width = view.m_height;
init.resolution.reset = 0
| BGFX_RESET_VSYNC
| BGFX_RESET_MSAA_X16
;
bgfx::init(init);
// Set view 0 clear state.
bgfx::setViewClear(SCENE_VIEW_ID
, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
, 0x000000ff
, 1.0f
, 0
);
imguiCreate();
ddInit();
const bgfx::Caps* caps = bgfx::getCaps();
bgfx::RendererType::Enum type = caps->rendererType;
bgfx::ShaderHandle vsMesh = bgfx::createEmbeddedShader(s_embeddedShaders, type, "vs_mesh");
bgfx::ShaderHandle fsMesh = bgfx::createEmbeddedShader(s_embeddedShaders, type, "fs_mesh");
bgfx::ProgramHandle meshProgram = bgfx::createProgram(
vsMesh
, fsMesh
, true
);
float speed = 0.37f;
float time = 0.0f;
Interpolator menuFade(5.0f);
auto anyActive = [&]() -> bool
{
return false
|| ImGui::MouseOverArea()
|| menuFade.isActive()
;
};
const char* filePath = _argc < 2 ? "" : _argv[1];
std::string path = filePath;
{
bx::FilePath fp(filePath);
view.updateFileList(fp);
}
int exitcode = bx::kExitSuccess;
Mesh* mesh = NULL;
{
uint32_t fileIndex = 0;
entry::WindowState windowState;
while (!entry::processWindowEvents(windowState, debug, init.resolution.reset) )
{
const entry::MouseState& mouseState = windowState.m_mouse;
view.m_width = windowState.m_width;
view.m_height = windowState.m_height;
if (!windowState.m_dropFile.isEmpty() )
{
view.updateFileList(windowState.m_dropFile);
windowState.m_dropFile.clear();
}
imguiBeginFrame(mouseState.m_mx
, mouseState.m_my
, (mouseState.m_buttons[entry::MouseButton::Left ] ? IMGUI_MBUT_LEFT : 0)
| (mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
| (mouseState.m_buttons[entry::MouseButton::Middle] ? IMGUI_MBUT_MIDDLE : 0)
, mouseState.m_mz
, uint16_t(view.m_width)
, uint16_t(view.m_height)
);
bool modalWindow = view.m_help || view.m_about;
bool overArea = false
|| ImGui::GetMousePos().y <= ImGui::GetTextLineHeightWithSpacing()
|| ImGui::MouseOverArea()
;
overArea &= !modalWindow;
if (overArea)
{
menuFade.set(5.0f, 0.25f);
}
else if (modalWindow)
{
menuFade.reset(0.0f);
}
else
{
menuFade.set(0.0f, 2.0f);
}
ImGui::PushStyleVar(ImGuiStyleVar_Alpha, bx::clamp(menuFade.getValue(), 0.0f, 1.0f) );
ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 0.0f);
if (ImGui::BeginMainMenuBar() )
{
if (ImGui::BeginMenu("File"))
{
if (ImGui::MenuItem("Open File") )
{
bx::FilePath tmp = view.m_path;
if (openFileSelectionDialog(
tmp
, FileSelectionDialogType::Open
, "geometryv: Open File"
, s_filter
) )
{
view.updateFileList(tmp);
}
}
if (ImGui::MenuItem("Show File List", NULL, view.m_files) )
{
cmdExec("view files");
}
ImGui::Separator();
if (ImGui::MenuItem("Exit") )
{
cmdExec("exit");
}
ImGui::EndMenu();
}
if (ImGui::BeginMenu("View") )
{
if (ImGui::MenuItem("Info", NULL, view.m_info) )
{
cmdExec("view info");
}
if (ImGui::MenuItem("Reset") )
{
cmdExec(s_resetCmd);
}
ImGui::Separator();
bool axes = view.m_axes;
if (ImGui::MenuItem("XYZ Axes", NULL, &axes) )
{
cmdExec("view axes");
}
ImGui::Separator();
if (ImGui::MenuItem("Save Options") )
{
cmdExec("view save");
}
ImGui::EndMenu();
}
if (ImGui::BeginMenu("Help") )
{
if (ImGui::MenuItem("View Help") )
{
cmdExec("view help");
}
ImGui::Separator();
if (ImGui::MenuItem("About") )
{
cmdExec("view about");
}
ImGui::EndMenu();
}
if (0 != view.m_fileList.size() )
{
ImGui::Separator();
ImGui::TextColored(
ImVec4(0.0f, 1.0f, 1.0f, 1.0f)
, "%s"
, view.m_fileList[view.m_fileIndex].c_str()
);
}
ImGui::EndMainMenuBar();
}
ImGui::PopStyleVar(2);
static bool help = false;
static bool about = false;
view.m_mouse.update(float(mouseState.m_mx), float(mouseState.m_my), mouseState.m_mz, view.m_width, view.m_height);
if (!overArea)
{
if (mouseState.m_buttons[entry::MouseButton::Left])
{
view.m_idleTimer = 0.0f;
view.m_camera.orbit(view.m_mouse.m_dx, view.m_mouse.m_dy);
}
else if (mouseState.m_buttons[entry::MouseButton::Right])
{
view.m_idleTimer = 0.0f;
view.m_camera.dolly(view.m_mouse.m_dx + view.m_mouse.m_dy);
}
else if (0 != view.m_mouse.m_scroll)
{
view.m_idleTimer = 0.0f;
view.m_camera.dolly(float(view.m_mouse.m_scroll)*0.1f);
}
}
if (help != view.m_help)
{
if (!help)
{
ImGui::OpenPopup("Help");
inputRemoveBindings(s_bindingName[Binding::View]);
inputAddBindings(s_bindingName[Binding::Help], s_binding[Binding::Help]);
}
else
{
inputRemoveBindings(s_bindingName[Binding::Help]);
inputAddBindings(s_bindingName[Binding::View], s_binding[Binding::View]);
}
help = view.m_help;
}
if (about != view.m_about)
{
if (!about)
{
ImGui::OpenPopup("About");
inputRemoveBindings(s_bindingName[Binding::View]);
inputAddBindings(s_bindingName[Binding::About], s_binding[Binding::About]);
}
else
{
inputRemoveBindings(s_bindingName[Binding::About]);
inputAddBindings(s_bindingName[Binding::View], s_binding[Binding::View]);
}
about = view.m_about;
}
if (view.m_info)
{
ImGui::SetNextWindowSize(
ImVec2(450.0f, 320.0f)
, ImGuiCond_FirstUseEver
);
if (ImGui::Begin("Info", &view.m_info) )
{
if (ImGui::BeginChild("##info", ImVec2(0.0f, 0.0f) ) )
{
if (NULL == mesh)
{
ImGui::Text("Geometry is not loaded.");
}
else
{
char layout[128] = {0};
for(int32_t attrib = bgfx::Attrib::Position; attrib < bgfx::Attrib::Count; attrib++)
{
if ( mesh->m_layout.has(bgfx::Attrib::Enum(attrib)) )
bx::strCat(layout, sizeof(layout), s_attribShortNames[attrib]);
}
ImGui::Text("Name: %s %s", view.m_fileList[view.m_fileIndex].c_str(), layout);
ImGui::Indent();
for (GroupArray::const_iterator itGroup = mesh->m_groups.begin(), itGroupEnd = mesh->m_groups.end()
; itGroup != itGroupEnd
; ++itGroup
)
{
ImGui::Text("Group v %d i %d c %.2f %.2f %.2f r %.2f"
, itGroup->m_numVertices
, itGroup->m_numIndices
, itGroup->m_sphere.center.x
, itGroup->m_sphere.center.y
, itGroup->m_sphere.center.z
, itGroup->m_sphere.radius
);
ImGui::Indent();
for (PrimitiveArray::const_iterator itPrim = itGroup->m_prims.begin(), itPrimEnd = itGroup->m_prims.end()
; itPrim != itPrimEnd
; ++itPrim
)
{
ImGui::Text("Primitive v %d i %d c %.2f %.2f %.2f r %.2f"
, itPrim->m_numVertices
, itPrim->m_numIndices
, itPrim->m_sphere.center.x
, itPrim->m_sphere.center.y
, itPrim->m_sphere.center.z
, itPrim->m_sphere.radius
);
}
ImGui::Unindent();
}
ImGui::Unindent();
ImGui::Separator();
}
ImGui::EndChild();
}
}
ImGui::End();
}
if (view.m_files)
{
char temp[bx::kMaxFilePath];
bx::snprintf(temp, BX_COUNTOF(temp), "%s##File", view.m_path.getCPtr() );
ImGui::SetNextWindowSize(
ImVec2(400.0f, 400.0f)
, ImGuiCond_FirstUseEver
);
if (ImGui::Begin(temp, &view.m_files) )
{
if (ImGui::BeginChild("##file_list", ImVec2(0.0f, 0.0f) ) )
{
ImGui::PushFont(ImGui::Font::Mono);
const float itemHeight = ImGui::GetTextLineHeightWithSpacing();
const float listHeight =
bx::max(1.0f, bx::floor(ImGui::GetWindowHeight()/itemHeight) )
* itemHeight
;
ImGui::PushItemWidth(-1);
if (ImGui::BeginListBox("##empty", ImVec2(0.0f, listHeight) ) )
{
const int32_t itemCount = int32_t(view.m_fileList.size() );
ImGuiListClipper clipper;
clipper.Begin(itemCount, itemHeight);
int32_t start = clipper.DisplayStart;
int32_t end = clipper.DisplayEnd;
const int32_t index = int32_t(view.m_fileIndex);
if (index <= start)
{
ImGui::SetScrollY(ImGui::GetScrollY() - (start-index+1)*itemHeight);
}
else if (index >= end)
{
ImGui::SetScrollY(ImGui::GetScrollY() + (index-end+1)*itemHeight);
}
while (clipper.Step() )
{
for (int32_t pos = clipper.DisplayStart; pos < clipper.DisplayEnd; ++pos)
{
ImGui::PushID(pos);
bool isSelected = uint32_t(pos) == view.m_fileIndex;
if (ImGui::Selectable(view.m_fileList[pos].c_str(), &isSelected) )
{
view.m_fileIndex = pos;
}
ImGui::PopID();
}
}
clipper.End();
ImGui::EndListBox();
}
ImGui::PopFont();
ImGui::EndChild();
}
}
ImGui::End();
}
if (ImGui::BeginPopupModal("About", &view.m_about, ImGuiWindowFlags_AlwaysAutoResize) )
{
ImGui::SetWindowFontScale(1.0f);
ImGui::Text(
"geometryv, bgfx geometry viewer tool " ICON_KI_WRENCH ", version %d.%d.%d.\n"
"Copyright 2019-2019 Attila Kocsis. All rights reserved.\n"
"License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE\n"
, BGFX_GEOMETRYV_VERSION_MAJOR
, BGFX_GEOMETRYV_VERSION_MINOR
, BGFX_API_VERSION
);
ImGui::Dummy(ImVec2(0.0f, 0.0f) );
ImGui::SameLine(ImGui::GetWindowWidth() - 136.0f);
if (ImGui::Button("Close", ImVec2(128.0f, 0.0f) )
|| !view.m_about)
{
view.m_about = false;
ImGui::CloseCurrentPopup();
}
ImGui::EndPopup();
}
if (ImGui::BeginPopupModal("Help", &view.m_help, ImGuiWindowFlags_AlwaysAutoResize) )
{
ImGui::SetWindowFontScale(1.0f);
ImGui::Text("Key bindings:\n\n");
ImGui::PushFont(ImGui::Font::Mono);
keyBindingHelp("ESC", "Exit.");
keyBindingHelp("h", "Toggle help screen.");
keyBindingHelp("i", "Toggle info screen.");
keyBindingHelp("f", "Toggle full-screen.");
ImGui::NextLine();
keyBindingHelp("LMB+drag", "Orbit.");
keyBindingHelp("W/A/S/D", "Orbit.");
keyBindingHelp("RMB+drag or MW", "Dolly.");
keyBindingHelp("=/-", "Dolly.");
keyBindingHelp("0", "Reset.");
keyBindingHelp("1", "Fit to window.");
ImGui::NextLine();
keyBindingHelp("up", "Previous geometry.");
keyBindingHelp("down", "Next geometry.");
ImGui::NextLine();
ImGui::NextLine();
ImGui::PopFont();
ImGui::Dummy(ImVec2(0.0f, 0.0f) );
ImGui::SameLine(ImGui::GetWindowWidth() - 136.0f);
if (ImGui::Button("Close", ImVec2(128.0f, 0.0f) )
|| !view.m_help)
{
view.m_help = false;
ImGui::CloseCurrentPopup();
}
ImGui::EndPopup();
}
imguiEndFrame();
if ( (NULL == mesh || view.m_fileIndex != fileIndex)
&& 0 != view.m_fileList.size() )
{
if (NULL != mesh )
{
meshUnload(mesh);
}
fileIndex = view.m_fileIndex;
bx::FilePath fp = view.m_path;
fp.join(view.m_fileList[view.m_fileIndex].c_str() );
mesh = meshLoad(fp.getCPtr());
std::string title;
if (NULL != mesh )
{
uint32_t numPrimitives = 0;
uint32_t numVertices = 0;
uint32_t numIndices = 0;
bx::Aabb boundingBox = {};
for (GroupArray::const_iterator it = mesh->m_groups.begin(), itEnd = mesh->m_groups.end(); it != itEnd; ++it)
{
if ( it == mesh->m_groups.begin())
{
boundingBox = it->m_aabb;
}
else
{
aabbExpand(boundingBox, it->m_aabb.min);
aabbExpand(boundingBox, it->m_aabb.max);
}
numPrimitives += (uint32_t)it->m_prims.size();
numVertices += (uint32_t)it->m_numVertices;
numIndices += (uint32_t)it->m_numIndices;
}
bx::stringPrintf(
title
, "%s (g %d, p %d, v %d, i %d)"
, fp.getCPtr()
, mesh->m_groups.size()
, numPrimitives
, numVertices
, numIndices
);
view.m_meshCenter = bx::getCenter(boundingBox);
view.m_meshRadius = bx::length(bx::getExtents(boundingBox) );
view.m_camera.init( view.m_meshCenter, view.m_meshRadius * 2.0f, 0.01f, view.m_meshRadius * 10.0f);
}
else
{
bx::stringPrintf(title, "Failed to load %s!", filePath);
}
entry::WindowHandle handle = { 0 };
entry::setWindowTitle(handle, title.c_str() );
}
int64_t now = bx::getHPCounter();
static int64_t last = now;
const int64_t frameTime = now - last;
last = now;
const double freq = double(bx::getHPFrequency() );
const float deltaTime = float(frameTime/freq);
time += (float)(frameTime*speed/freq);
// Update camera.
float viewMatrix[16];
view.m_camera.update(deltaTime);
view.m_camera.mtxLookAt(viewMatrix);
float projMatrix[16];
const float aspect = float(view.m_width)/float(view.m_height);
bx::mtxProj(projMatrix, 60.0f, aspect, 0.01f, 1000.0f, caps->homogeneousDepth);
bgfx::setViewTransform(SCENE_VIEW_ID, viewMatrix, projMatrix);
bgfx::setViewRect(SCENE_VIEW_ID, 0, 0, uint16_t(view.m_width), uint16_t(view.m_height) );
bgfx::touch(SCENE_VIEW_ID);
if ( view.m_axes )
{
DebugDrawEncoder dde;
dde.begin(SCENE_VIEW_ID);
dde.drawAxis(0.0f, 0.0f, 0.0f);
dde.drawGrid(Axis::Y, {0.0f, 0.0f, 0.0f});
dde.end();
}
bgfx::dbgTextClear();
float orientation[16];
bx::mtxIdentity(orientation);
bgfx::setTransform(orientation);
float mtx[16];
bx::mtxIdentity(mtx);
if (NULL != mesh)
{
meshSubmit(mesh
, SCENE_VIEW_ID
, meshProgram
, mtx);
}
bgfx::frame();
// Slow down when nothing is animating...
if (view.m_idleTimer > 2.0f
&& !anyActive() )
{
bx::sleep(100);
}
view.m_idleTimer += deltaTime;
}
}
if (NULL != mesh )
{
meshUnload(mesh);
}
bgfx::destroy(meshProgram);
ddShutdown();
imguiDestroy();
bgfx::shutdown();
return exitcode;
}
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