bgfx/tools/texturev/texturev.cpp
Branimir Karadžić 321797f162 Cleanup.
2017-05-29 14:09:48 -07:00

1080 lines
26 KiB
C++

/*
* Copyright 2011-2017 Branimir Karadzic. All rights reserved.
* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
*/
#include "common.h"
#include <bgfx/bgfx.h>
#include <bx/commandline.h>
#include <bx/os.h>
#include <bx/string.h>
#include <bx/uint32_t.h>
#include <entry/entry.h>
#include <entry/input.h>
#include <entry/cmd.h>
#include <imgui/imgui.h>
#include <bgfx_utils.h>
#include <dirent.h>
#include <bx/crtimpl.h>
#include <tinystl/allocator.h>
#include <tinystl/vector.h>
#include <string>
namespace stl = tinystl;
#include <bimg/decode.h>
#include <bgfx/embedded_shader.h>
#include "vs_texture.bin.h"
#include "fs_texture.bin.h"
#include "fs_texture_array.bin.h"
#include "vs_texture_cube.bin.h"
#include "fs_texture_cube.bin.h"
#include "fs_texture_sdf.bin.h"
#define BGFX_TEXTUREV_VERSION_MAJOR 1
#define BGFX_TEXTUREV_VERSION_MINOR 0
static const bgfx::EmbeddedShader s_embeddedShaders[] =
{
BGFX_EMBEDDED_SHADER(vs_texture),
BGFX_EMBEDDED_SHADER(fs_texture),
BGFX_EMBEDDED_SHADER(fs_texture_array),
BGFX_EMBEDDED_SHADER(vs_texture_cube),
BGFX_EMBEDDED_SHADER(fs_texture_cube),
BGFX_EMBEDDED_SHADER(fs_texture_sdf),
BGFX_EMBEDDED_SHADER_END()
};
static const char* s_supportedExt[] =
{
"bmp",
"dds",
"exr",
"gif",
"jpg",
"jpeg",
"hdr",
"ktx",
"png",
"psd",
"pvr",
"tga",
};
struct Binding
{
enum Enum
{
App,
View,
Count
};
};
static const InputBinding s_bindingApp[] =
{
{ entry::Key::Esc, entry::Modifier::None, 1, NULL, "exit" },
{ entry::Key::KeyQ, entry::Modifier::None, 1, NULL, "exit" },
{ entry::Key::KeyF, entry::Modifier::None, 1, NULL, "graphics fullscreen" },
INPUT_BINDING_END
};
static const InputBinding s_bindingView[] =
{
{ entry::Key::Comma, entry::Modifier::None, 1, NULL, "view mip prev" },
{ entry::Key::Period, entry::Modifier::None, 1, NULL, "view mip next" },
{ entry::Key::Comma, entry::Modifier::LeftShift, 1, NULL, "view mip" },
{ entry::Key::Comma, entry::Modifier::RightShift, 1, NULL, "view mip" },
{ entry::Key::Slash, entry::Modifier::None, 1, NULL, "view filter" },
{ entry::Key::Key0, entry::Modifier::None, 1, NULL, "view zoom 1.0\nview pan" },
{ entry::Key::Plus, entry::Modifier::None, 1, NULL, "view zoom +0.1" },
{ entry::Key::Minus, entry::Modifier::None, 1, NULL, "view zoom -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::PageUp, entry::Modifier::None, 1, NULL, "view file-pgup" },
{ entry::Key::PageDown, entry::Modifier::None, 1, NULL, "view file-pgdown" },
{ entry::Key::Left, entry::Modifier::None, 1, NULL, "view layer prev" },
{ entry::Key::Right, entry::Modifier::None, 1, NULL, "view layer next" },
{ entry::Key::KeyR, entry::Modifier::None, 1, NULL, "view rgb r" },
{ entry::Key::KeyG, entry::Modifier::None, 1, NULL, "view rgb g" },
{ entry::Key::KeyB, entry::Modifier::None, 1, NULL, "view rgb b" },
{ entry::Key::KeyA, entry::Modifier::None, 1, NULL, "view rgb a" },
{ entry::Key::KeyH, entry::Modifier::None, 1, NULL, "view help" },
{ entry::Key::KeyS, entry::Modifier::None, 1, NULL, "view sdf" },
INPUT_BINDING_END
};
static const char* s_bindingName[] =
{
"App",
"View",
};
BX_STATIC_ASSERT(Binding::Count == BX_COUNTOF(s_bindingName) );
static const InputBinding* s_binding[] =
{
s_bindingApp,
s_bindingView,
};
BX_STATIC_ASSERT(Binding::Count == BX_COUNTOF(s_binding) );
struct View
{
View()
: m_fileIndex(0)
, m_scaleFn(0)
, m_mip(0)
, m_layer(0)
, m_abgr(UINT32_MAX)
, m_posx(0.0f)
, m_posy(0.0f)
, m_zoom(1.0f)
, m_filter(true)
, m_alpha(false)
, m_help(false)
, m_sdf(false)
{
}
~View()
{
}
int32_t cmd(int32_t _argc, char const* const* _argv)
{
if (_argc >= 2)
{
if (0 == bx::strCmp(_argv[1], "mip") )
{
if (_argc >= 3)
{
uint32_t mip = m_mip;
if (0 == bx::strCmp(_argv[2], "next") )
{
++mip;
}
else if (0 == bx::strCmp(_argv[2], "prev") )
{
--mip;
}
else if (0 == bx::strCmp(_argv[2], "last") )
{
mip = INT32_MAX;
}
else
{
mip = atoi(_argv[2]);
}
m_mip = bx::uint32_iclamp(mip, 0, m_info.numMips-1);
}
else
{
m_mip = 0;
}
}
if (0 == bx::strCmp(_argv[1], "layer") )
{
if (_argc >= 3)
{
uint32_t layer = m_layer;
if (0 == bx::strCmp(_argv[2], "next") )
{
++layer;
}
else if (0 == bx::strCmp(_argv[2], "prev") )
{
--layer;
}
else if (0 == bx::strCmp(_argv[2], "last") )
{
layer = INT32_MAX;
}
else
{
layer = atoi(_argv[2]);
}
m_layer = bx::uint32_iclamp(layer, 0, m_info.numLayers-1);
}
else
{
m_layer = 0;
}
}
else if (0 == bx::strCmp(_argv[1], "pan") )
{
if (_argc >= 3)
{
if (_argc >= 4)
{
float yy = (float)atof(_argv[3]);
if (_argv[3][0] == '+'
|| _argv[3][0] == '-')
{
m_posy += yy;
}
else
{
m_posy = yy;
}
}
float xx = (float)atof(_argv[2]);
if (_argv[2][0] == '+'
|| _argv[2][0] == '-')
{
m_posx += xx;
}
else
{
m_posx = xx;
}
}
else
{
m_posx = 0.0f;
m_posy = 0.0f;
}
}
else if (0 == bx::strCmp(_argv[1], "zoom") )
{
if (_argc >= 3)
{
float zoom = (float)atof(_argv[2]);
if (_argv[2][0] == '+'
|| _argv[2][0] == '-')
{
m_zoom += zoom;
}
else
{
m_zoom = zoom;
}
m_zoom = bx::fclamp(m_zoom, 0.01f, 10.0f);
}
else
{
m_zoom = 1.0f;
}
}
else if (0 == bx::strCmp(_argv[1], "filter") )
{
if (_argc >= 3)
{
m_filter = bx::toBool(_argv[2]);
}
else
{
m_filter ^= true;
}
}
else 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], "rgb") )
{
if (_argc >= 3)
{
if (_argv[2][0] == 'r')
{
m_abgr ^= 0x000000ff;
}
else if (_argv[2][0] == 'g')
{
m_abgr ^= 0x0000ff00;
}
else if (_argv[2][0] == 'b')
{
m_abgr ^= 0x00ff0000;
}
else if (_argv[2][0] == 'a')
{
m_alpha ^= true;
}
}
else
{
m_abgr = UINT32_MAX;
m_alpha = false;
}
}
else if (0 == bx::strCmp(_argv[1], "sdf") )
{
m_sdf ^= true;
}
else if (0 == bx::strCmp(_argv[1], "help") )
{
m_help ^= true;
}
}
return 0;
}
void updateFileList(const char* _path, const char* _fileName = "")
{
std::string path = _path;
DIR* dir = opendir(_path);
if (NULL == dir)
{
path = ".";
}
dir = opendir(path.c_str() );
if (NULL != dir)
{
for (dirent* item = readdir(dir); NULL != item; item = readdir(dir) )
{
if (0 == (item->d_type & DT_DIR) )
{
const char* ext = bx::strRFind(item->d_name, '.');
if (NULL != ext)
{
ext += 1;
bool supported = false;
for (uint32_t ii = 0; ii < BX_COUNTOF(s_supportedExt); ++ii)
{
if (0 == bx::strCmpI(ext, s_supportedExt[ii]) )
{
supported = true;
break;
}
}
if (supported)
{
if (0 == bx::strCmp(_fileName, item->d_name) )
{
m_fileIndex = uint32_t(m_fileList.size() );
}
std::string name = path;
char ch = name[name.size()-1];
name += '/' == ch || '\\' == ch ? "" : "/";
name += item->d_name;
m_fileList.push_back(name);
}
}
}
}
closedir(dir);
}
}
typedef stl::vector<std::string> FileList;
FileList m_fileList;
bgfx::TextureInfo m_info;
uint32_t m_fileIndex;
uint32_t m_scaleFn;
uint32_t m_mip;
uint32_t m_layer;
uint32_t m_abgr;
float m_posx;
float m_posy;
float m_zoom;
bool m_filter;
bool m_alpha;
bool m_help;
bool m_sdf;
};
int cmdView(CmdContext* /*_context*/, void* _userData, int _argc, char const* const* _argv)
{
View* view = static_cast<View*>(_userData);
return view->cmd(_argc, _argv);
}
struct PosUvColorVertex
{
float m_x;
float m_y;
float m_u;
float m_v;
uint32_t m_abgr;
static void init()
{
ms_decl
.begin()
.add(bgfx::Attrib::Position, 2, bgfx::AttribType::Float)
.add(bgfx::Attrib::TexCoord0, 2, bgfx::AttribType::Float)
.add(bgfx::Attrib::Color0, 4, bgfx::AttribType::Uint8, true)
.end();
}
static bgfx::VertexDecl ms_decl;
};
bgfx::VertexDecl PosUvColorVertex::ms_decl;
bool screenQuad(int32_t _x, int32_t _y, int32_t _width, uint32_t _height, uint32_t _abgr, bool _originBottomLeft = false)
{
if (6 == bgfx::getAvailTransientVertexBuffer(6, PosUvColorVertex::ms_decl) )
{
bgfx::TransientVertexBuffer vb;
bgfx::allocTransientVertexBuffer(&vb, 6, PosUvColorVertex::ms_decl);
PosUvColorVertex* vertex = (PosUvColorVertex*)vb.data;
const float widthf = float(_width);
const float heightf = float(_height);
const float minx = float(_x);
const float miny = float(_y);
const float maxx = minx+widthf;
const float maxy = miny+heightf;
float m_halfTexel = 0.0f;
const float texelHalfW = m_halfTexel/widthf;
const float texelHalfH = m_halfTexel/heightf;
const float minu = texelHalfW;
const float maxu = 1.0f - texelHalfW;
const float minv = _originBottomLeft ? texelHalfH+1.0f : texelHalfH ;
const float maxv = _originBottomLeft ? texelHalfH : texelHalfH+1.0f;
vertex[0].m_x = minx;
vertex[0].m_y = miny;
vertex[0].m_u = minu;
vertex[0].m_v = minv;
vertex[1].m_x = maxx;
vertex[1].m_y = miny;
vertex[1].m_u = maxu;
vertex[1].m_v = minv;
vertex[2].m_x = maxx;
vertex[2].m_y = maxy;
vertex[2].m_u = maxu;
vertex[2].m_v = maxv;
vertex[3].m_x = maxx;
vertex[3].m_y = maxy;
vertex[3].m_u = maxu;
vertex[3].m_v = maxv;
vertex[4].m_x = minx;
vertex[4].m_y = maxy;
vertex[4].m_u = minu;
vertex[4].m_v = maxv;
vertex[5].m_x = minx;
vertex[5].m_y = miny;
vertex[5].m_u = minu;
vertex[5].m_v = minv;
vertex[0].m_abgr = _abgr;
vertex[1].m_abgr = _abgr;
vertex[2].m_abgr = _abgr;
vertex[3].m_abgr = _abgr;
vertex[4].m_abgr = _abgr;
vertex[5].m_abgr = _abgr;
bgfx::setVertexBuffer(0, &vb);
return true;
}
return false;
}
struct Interpolator
{
float from;
float to;
float duration;
int64_t offset;
Interpolator(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 (duration > 0.0)
{
const double freq = double(bx::getHPFrequency() );
int64_t now = bx::getHPCounter();
float time = (float)(double(now - offset) / freq);
float lerp = bx::fclamp(time, 0.0, duration) / duration;
return bx::flerp(from, to, lerp);
}
return to;
}
};
void associate()
{
#if BX_PLATFORM_WINDOWS
std::string str;
char exec[MAX_PATH];
GetModuleFileNameA(GetModuleHandleA(NULL), exec, MAX_PATH);
std::string strExec = bx::replaceAll<std::string>(exec, "\\", "\\\\");
std::string value;
bx::stringPrintf(value, "@=\"\\\"%s\\\" \\\"%%1\\\"\"\r\n\r\n", strExec.c_str() );
str += "Windows Registry Editor Version 5.00\r\n\r\n";
str += "[HKEY_CLASSES_ROOT\\texturev\\shell\\open\\command]\r\n";
str += value;
str += "[HKEY_CLASSES_ROOT\\Applications\\texturev.exe\\shell\\open\\command]\r\n";
str += value;
for (uint32_t ii = 0; ii < BX_COUNTOF(s_supportedExt); ++ii)
{
const char* ext = s_supportedExt[ii];
bx::stringPrintf(str, "[-HKEY_CLASSES_ROOT\\.%s]\r\n\r\n", ext);
bx::stringPrintf(str, "[-HKEY_CURRENT_USER\\Software\\Classes\\.%s]\r\n\r\n", ext);
bx::stringPrintf(str, "[HKEY_CLASSES_ROOT\\.%s]\r\n@=\"texturev\"\r\n\r\n", ext);
bx::stringPrintf(str, "[HKEY_CURRENT_USER\\Software\\Classes\\.%s]\r\n@=\"texturev\"\r\n\r\n", ext);
}
char temp[MAX_PATH];
GetTempPathA(MAX_PATH, temp);
bx::strCat(temp, MAX_PATH, "\\texturev.reg");
bx::CrtFileWriter writer;
bx::Error err;
if (bx::open(&writer, temp, false, &err) )
{
bx::write(&writer, str.c_str(), uint32_t(str.length()), &err);
bx::close(&writer);
if (err.isOk() )
{
std::string cmd;
bx::stringPrintf(cmd, "regedit.exe /s %s", temp);
bx::ProcessReader reader;
if (bx::open(&reader, cmd.c_str(), &err) )
{
bx::close(&reader);
}
}
}
#elif BX_PLATFORM_LINUX
std::string str;
str += "#/bin/bash\n\n";
for (uint32_t ii = 0; ii < BX_COUNTOF(s_supportedExt); ++ii)
{
const char* ext = s_supportedExt[ii];
bx::stringPrintf(str, "xdg-mime default texturev.desktop image/%s\n", ext);
}
str += "\n";
bx::CrtFileWriter writer;
bx::Error err;
if (bx::open(&writer, "/tmp/texturev.sh", false, &err) )
{
bx::write(&writer, str.c_str(), uint32_t(str.length()), &err);
bx::close(&writer);
if (err.isOk() )
{
bx::ProcessReader reader;
if (bx::open(&reader, "/bin/bash /tmp/texturev.sh", &err) )
{
bx::close(&reader);
}
}
}
#endif // BX_PLATFORM_WINDOWS
}
void help(const char* _error = NULL)
{
if (NULL != _error)
{
fprintf(stderr, "Error:\n%s\n\n", _error);
}
fprintf(stderr
, "texturev, bgfx texture viewer tool, version %d.%d.%d.\n"
"Copyright 2011-2017 Branimir Karadzic. All rights reserved.\n"
"License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause\n\n"
, BGFX_TEXTUREV_VERSION_MAJOR
, BGFX_TEXTUREV_VERSION_MINOR
, BGFX_API_VERSION
);
fprintf(stderr
, "Usage: texturev <file path>\n"
"\n"
"Supported input file types:\n"
);
for (uint32_t ii = 0; ii < BX_COUNTOF(s_supportedExt); ++ii)
{
fprintf(stderr, " *.%s\n", s_supportedExt[ii]);
}
fprintf(stderr
, "\n"
"Options:\n"
" -h, --help Help.\n"
" -v, --version Version information only.\n"
" --associate Associate file extensions with texturev.\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") )
{
fprintf(stderr
, "texturev, bgfx texture viewer tool, version %d.%d.%d.\n"
, BGFX_TEXTUREV_VERSION_MAJOR
, BGFX_TEXTUREV_VERSION_MINOR
, BGFX_API_VERSION
);
return EXIT_SUCCESS;
}
if (cmdLine.hasArg('h', "help") )
{
help();
return EXIT_FAILURE;
}
else if (cmdLine.hasArg("associate") )
{
associate();
return EXIT_FAILURE;
}
uint32_t width = 1280;
uint32_t height = 720;
uint32_t debug = BGFX_DEBUG_TEXT;
uint32_t reset = BGFX_RESET_VSYNC;
inputAddBindings(s_bindingName[Binding::App], s_binding[Binding::App]);
inputAddBindings(s_bindingName[Binding::View], s_binding[Binding::View]);
View view;
cmdAdd("view", cmdView, &view);
bgfx::init();
bgfx::reset(width, height, reset);
// Set view 0 clear state.
bgfx::setViewClear(0
, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
, 0x101010ff
, 1.0f
, 0
);
imguiCreate();
PosUvColorVertex::init();
bgfx::RendererType::Enum type = bgfx::getRendererType();
bgfx::ShaderHandle vsTexture = bgfx::createEmbeddedShader(s_embeddedShaders, type, "vs_texture");
bgfx::ShaderHandle fsTexture = bgfx::createEmbeddedShader(s_embeddedShaders, type, "fs_texture");
bgfx::ShaderHandle fsTextureArray = bgfx::createEmbeddedShader(s_embeddedShaders, type, "fs_texture_array");
bgfx::ProgramHandle textureProgram = bgfx::createProgram(
vsTexture
, fsTexture
, true
);
bgfx::ProgramHandle textureArrayProgram = bgfx::createProgram(
vsTexture
, bgfx::isValid(fsTextureArray)
? fsTextureArray
: fsTexture
, true
);
bgfx::ProgramHandle textureCubeProgram = bgfx::createProgram(
bgfx::createEmbeddedShader(s_embeddedShaders, type, "vs_texture_cube")
, bgfx::createEmbeddedShader(s_embeddedShaders, type, "fs_texture_cube")
, true
);
bgfx::ProgramHandle textureSdfProgram = bgfx::createProgram(
vsTexture
, bgfx::createEmbeddedShader(s_embeddedShaders, type, "fs_texture_sdf")
, true);
bgfx::UniformHandle s_texColor = bgfx::createUniform("s_texColor", bgfx::UniformType::Int1);
bgfx::UniformHandle u_mtx = bgfx::createUniform("u_mtx", bgfx::UniformType::Mat4);
bgfx::UniformHandle u_params = bgfx::createUniform("u_params", bgfx::UniformType::Vec4);
float speed = 0.37f;
float time = 0.0f;
Interpolator mip(0.0f);
Interpolator layer(0.0f);
Interpolator zoom(1.0f);
Interpolator scale(1.0f);
Interpolator posx(0.0f);
Interpolator posy(0.0f);
const char* filePath = _argc < 2 ? "" : _argv[1];
bool directory = false;
bx::FileInfo fi;
bx::stat(filePath, fi);
directory = bx::FileInfo::Directory == fi.m_type;
std::string path = filePath;
if (!directory)
{
const char* fileName = directory ? filePath : bx::baseName(filePath);
path.assign(filePath, fileName);
view.updateFileList(path.c_str(), fileName);
}
else
{
view.updateFileList(path.c_str() );
}
int exitcode = EXIT_SUCCESS;
bgfx::TextureHandle texture = BGFX_INVALID_HANDLE;
if (view.m_fileList.empty() )
{
exitcode = EXIT_FAILURE;
if (2 > _argc)
{
help("File path is not specified.");
}
else
{
fprintf(stderr, "Unable to load '%s' texture.\n", filePath);
}
}
else
{
uint32_t fileIndex = 0;
bool dragging = false;
entry::MouseState mouseStatePrev;
entry::MouseState mouseState;
while (!entry::processEvents(width, height, debug, reset, &mouseState) )
{
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(width)
, uint16_t(height)
);
static bool help = false;
static bool mouseDelta = false;
if (!mouseDelta)
{
mouseStatePrev = mouseState;
mouseDelta = true;
}
int32_t zoomDelta = mouseState.m_mz - mouseStatePrev.m_mz;
if (zoomDelta != 0)
{
char exec[64];
bx::snprintf(exec, BX_COUNTOF(exec), "view zoom %+f", -zoomDelta*0.1f);
cmdExec(exec);
}
if (mouseState.m_buttons[entry::MouseButton::Left] != mouseStatePrev.m_buttons[entry::MouseButton::Left])
{
dragging = !!mouseState.m_buttons[entry::MouseButton::Left];
}
if (dragging)
{
float xDelta = float(mouseStatePrev.m_mx - mouseState.m_mx);
float yDelta = float(mouseStatePrev.m_my - mouseState.m_my);
char exec[64];
bx::snprintf(exec, BX_COUNTOF(exec), "view pan %+f %+f", xDelta, yDelta);
cmdExec(exec);
}
mouseStatePrev = mouseState;
if (help == false
&& help != view.m_help)
{
ImGui::OpenPopup("Help");
}
if (ImGui::BeginPopupModal("Help", NULL, ImGuiWindowFlags_AlwaysAutoResize) )
{
ImGui::SetWindowFontScale(1.0f);
ImGui::Text(
"texturev, bgfx texture viewer tool " ICON_KI_WRENCH ", version %d.%d.%d.\n"
"Copyright 2011-2017 Branimir Karadzic. All rights reserved.\n"
"License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause\n"
, BGFX_TEXTUREV_VERSION_MAJOR
, BGFX_TEXTUREV_VERSION_MINOR
, BGFX_API_VERSION
);
ImGui::Separator();
ImGui::NextLine();
ImGui::Text("Key bindings:\n\n");
ImGui::PushFont(ImGui::Font::Mono);
ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "ESC"); ImGui::SameLine(64); ImGui::Text("Exit.");
ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "h"); ImGui::SameLine(64); ImGui::Text("Toggle help screen.");
ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "f"); ImGui::SameLine(64); ImGui::Text("Toggle full-screen.");
ImGui::NextLine();
ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "-"); ImGui::SameLine(64); ImGui::Text("Zoom out.");
ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "="); ImGui::SameLine(64); ImGui::Text("Zoom in.");
ImGui::NextLine();
ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), ","); ImGui::SameLine(64); ImGui::Text("MIP level up.");
ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "."); ImGui::SameLine(64); ImGui::Text("MIP level down.");
ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "/"); ImGui::SameLine(64); ImGui::Text("Toggle linear/point texture sampling.");
ImGui::NextLine();
ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "left"); ImGui::SameLine(64); ImGui::Text("Previous layer in texture array.");
ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "right"); ImGui::SameLine(64); ImGui::Text("Next layer in texture array.");
ImGui::NextLine();
ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "up"); ImGui::SameLine(64); ImGui::Text("Previous texture.");
ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "down"); ImGui::SameLine(64); ImGui::Text("Next texture.");
ImGui::NextLine();
ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "r/g/b"); ImGui::SameLine(64); ImGui::Text("Toggle R, G, or B color channel.");
ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "a"); ImGui::SameLine(64); ImGui::Text("Toggle alpha blending.");
ImGui::NextLine();
ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "s"); ImGui::SameLine(64); ImGui::Text("Toggle Multi-channel SDF rendering");
ImGui::PopFont();
ImGui::NextLine();
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();
}
help = view.m_help;
imguiEndFrame();
if (!bgfx::isValid(texture)
|| view.m_fileIndex != fileIndex)
{
if (bgfx::isValid(texture) )
{
bgfx::destroyTexture(texture);
}
fileIndex = view.m_fileIndex;
filePath = view.m_fileList[view.m_fileIndex].c_str();
texture = loadTexture(filePath
, 0
| BGFX_TEXTURE_U_CLAMP
| BGFX_TEXTURE_V_CLAMP
| BGFX_TEXTURE_W_CLAMP
, 0
, &view.m_info
);
std::string title;
if (isValid(texture) )
{
bx::stringPrintf(title, "%s (%d x %d%s, mips: %d, layers %d, %s)"
, filePath
, view.m_info.width
, view.m_info.height
, view.m_info.cubeMap ? " CubeMap" : ""
, view.m_info.numMips
, view.m_info.numLayers
, bimg::getName(bimg::TextureFormat::Enum(view.m_info.format) )
);
}
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() );
time += (float)(frameTime*speed/freq);
float transitionTime = dragging ? 0.0f : 0.25f;
posx.set(view.m_posx, transitionTime);
posy.set(view.m_posy, transitionTime);
float ortho[16];
float px = posx.getValue();
float py = posy.getValue();
bx::mtxOrtho(ortho, px, px+width, py+height, py, 0.0f, 1000.0f);
bgfx::setViewTransform(0, NULL, ortho);
bgfx::setViewRect(0, 0, 0, uint16_t(width), uint16_t(height) );
bgfx::touch(0);
bgfx::dbgTextClear();
scale.set(
bx::fmin( float(width) / float(view.m_info.width)
, float(height) / float(view.m_info.height)
)
, 0.1f
);
zoom.set(view.m_zoom, transitionTime);
float ss = scale.getValue()
* zoom.getValue()
;
screenQuad(
int(width - view.m_info.width * ss)/2
, int(height - view.m_info.height * ss)/2
, int( view.m_info.width * ss)
, int( view.m_info.height * ss)
, view.m_abgr
);
float mtx[16];
bx::mtxRotateXY(mtx, 0.0f, time);
bgfx::setUniform(u_mtx, mtx);
mip.set(float(view.m_mip), 0.5f);
layer.set(float(view.m_layer), 0.25f);
float params[4] = { mip.getValue(), layer.getValue(), 0.0f, 0.0f };
bgfx::setUniform(u_params, params);
const uint32_t textureFlags = 0
| BGFX_TEXTURE_U_CLAMP
| BGFX_TEXTURE_V_CLAMP
| BGFX_TEXTURE_W_CLAMP
| (view.m_filter ? 0 : 0
| BGFX_TEXTURE_MIN_POINT
| BGFX_TEXTURE_MIP_POINT
| BGFX_TEXTURE_MAG_POINT
)
;
bgfx::setTexture(0
, s_texColor
, texture
, textureFlags
);
bgfx::setState(0
| BGFX_STATE_RGB_WRITE
| BGFX_STATE_ALPHA_WRITE
| (view.m_alpha ? BGFX_STATE_BLEND_ALPHA : BGFX_STATE_NONE)
);
bgfx::submit(0
, view.m_info.cubeMap ? textureCubeProgram
: 1 < view.m_info.numLayers ? textureArrayProgram
: view.m_sdf ? textureSdfProgram
: textureProgram
);
bgfx::frame();
}
}
if (bgfx::isValid(texture) )
{
bgfx::destroyTexture(texture);
}
bgfx::destroyUniform(s_texColor);
bgfx::destroyUniform(u_mtx);
bgfx::destroyUniform(u_params);
bgfx::destroyProgram(textureProgram);
bgfx::destroyProgram(textureArrayProgram);
bgfx::destroyProgram(textureCubeProgram);
bgfx::destroyProgram(textureSdfProgram);
imguiDestroy();
bgfx::shutdown();
return exitcode;
}