int _main_(int _argc, char** _argv)
{
Args args(_argc, _argv);
uint32_t width = 1280;
uint32_t height = 720;
uint32_t debug = BGFX_DEBUG_TEXT;
uint32_t reset = BGFX_RESET_VSYNC;
bgfx::init(args.m_type, args.m_pciId);
bgfx::reset(width, height, reset);
// Enable debug text.
bgfx::setDebug(debug);
// Set view 0 clear state.
bgfx::setViewClear(0
, BGFX_CLEAR_COLOR | BGFX_CLEAR_DEPTH
, 0x303030ff
, 1.0f
, 0
);
// Init the text rendering system.
FontManager* fontManager = new FontManager(512);
TextBufferManager* textBufferManager = new TextBufferManager(fontManager);
// Load some TTF files.
const char* fontFilePath[7] =
{
"font/droidsans.ttf",
"font/chp-fire.ttf",
"font/bleeding_cowboys.ttf",
"font/mias_scribblings.ttf",
"font/ruritania.ttf",
"font/signika-regular.ttf",
"font/five_minutes.otf",
};
const uint32_t numFonts = BX_COUNTOF(fontFilePath);
TrueTypeHandle fontFiles[numFonts];
FontHandle fonts[numFonts];
for (uint32_t ii = 0; ii < numFonts; ++ii)
{
// Instantiate a usable font.
fontFiles[ii] = loadTtf(fontManager, fontFilePath[ii]);
fonts[ii] = fontManager->createFontByPixelSize(fontFiles[ii], 0, 32);
// Preload glyphs and blit them to atlas.
fontManager->preloadGlyph(fonts[ii], L"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ. \n");
// You can unload the truetype files at this stage, but in that
// case, the set of glyph's will be limited to the set of preloaded
// glyph.
fontManager->destroyTtf(fontFiles[ii]);
}
TrueTypeHandle fontAwesomeTtf = loadTtf(fontManager, "font/fontawesome-webfont.ttf");
// This font doesn't have any preloaded glyph's but the truetype file
// is loaded so glyph will be generated as needed.
FontHandle fontAwesome72 = fontManager->createFontByPixelSize(fontAwesomeTtf, 0, 72);
TrueTypeHandle visitorTtf = loadTtf(fontManager, "font/visitor1.ttf");
// This font doesn't have any preloaded glyph's but the truetype file
// is loaded so glyph will be generated as needed.
FontHandle visitor10 = fontManager->createFontByPixelSize(visitorTtf, 0, 10);
//create a static text buffer compatible with alpha font
//a static text buffer content cannot be modified after its first submit.
TextBufferHandle staticText = textBufferManager->createTextBuffer(FONT_TYPE_ALPHA, BufferType::Static);
// The pen position represent the top left of the box of the first line
// of text.
textBufferManager->setPenPosition(staticText, 24.0f, 100.0f);
for (uint32_t ii = 0; ii < numFonts; ++ii)
{
// Add some text to the buffer.
// The position of the pen is adjusted when there is an endline.
textBufferManager->appendText(staticText, fonts[ii], L"The quick brown fox jumps over the lazy dog\n");
}
// Now write some styled text.
// Setup style colors.
textBufferManager->setBackgroundColor(staticText, 0x551111ff);
textBufferManager->setUnderlineColor(staticText, 0xff2222ff);
textBufferManager->setOverlineColor(staticText, 0x2222ffff);
textBufferManager->setStrikeThroughColor(staticText, 0x22ff22ff);
// Background.
textBufferManager->setStyle(staticText, STYLE_BACKGROUND);
textBufferManager->appendText(staticText, fonts[0], L"The quick ");
// Strike-through.
textBufferManager->setStyle(staticText, STYLE_STRIKE_THROUGH);
textBufferManager->appendText(staticText, fonts[0], L"brown fox ");
// Overline.
textBufferManager->setStyle(staticText, STYLE_OVERLINE);
textBufferManager->appendText(staticText, fonts[0], L"jumps over ");
// Underline.
textBufferManager->setStyle(staticText, STYLE_UNDERLINE);
textBufferManager->appendText(staticText, fonts[0], L"the lazy ");
// Background + strike-through.
textBufferManager->setStyle(staticText, STYLE_BACKGROUND | STYLE_STRIKE_THROUGH);
textBufferManager->appendText(staticText, fonts[0], L"dog\n");
textBufferManager->setStyle(staticText, STYLE_NORMAL);
textBufferManager->appendText(staticText, fontAwesome72, L"\xf011 \xf02e \xf061 \xf087 \xf0d9 \xf099 \xf05c \xf021 \xf113\n");
// Create a transient buffer for real-time data.
TextBufferHandle transientText = textBufferManager->createTextBuffer(FONT_TYPE_ALPHA, BufferType::Transient);
while (!entry::processEvents(width, height, debug, reset) )
{
// This dummy draw call is here to make sure that view 0 is cleared
// if no other draw calls are submitted to view 0.
bgfx::touch(0);
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 double toMs = 1000.0 / freq;
// Use debug font to print information about this example.
bgfx::dbgTextClear();
bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/10-font");
bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Use the font system to display text and styled text.");
bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs);
// Use transient text to display debug information.
wchar_t fpsText[64];
bx::swnprintf(fpsText, BX_COUNTOF(fpsText), L"Frame: % 7.3f[ms]", double(frameTime) * toMs);
textBufferManager->clearTextBuffer(transientText);
textBufferManager->setPenPosition(transientText, width - 150.0f, 10.0f);
textBufferManager->appendText(transientText, visitor10, L"Transient\n");
textBufferManager->appendText(transientText, visitor10, L"text buffer\n");
textBufferManager->appendText(transientText, visitor10, fpsText);
float at[3] = { 0, 0, 0.0f };
float eye[3] = { 0, 0, -1.0f };
float view[16];
bx::mtxLookAt(view, eye, at);
const float centering = 0.5f;
// Setup a top-left ortho matrix for screen space drawing.
const bgfx::HMD* hmd = bgfx::getHMD();
if (NULL != hmd && 0 != (hmd->flags & BGFX_HMD_RENDERING) )
{
float proj[16];
bx::mtxProj(proj, hmd->eye[0].fov, 0.1f, 100.0f);
static float time = 0.0f;
time += 0.05f;
const float dist = 10.0f;
const float offset0 = -proj[8] + (hmd->eye[0].viewOffset[0] / dist * proj[0]);
const float offset1 = -proj[8] + (hmd->eye[1].viewOffset[0] / dist * proj[0]);
float ortho[2][16];
const float offsetx = width/2.0f;
bx::mtxOrtho(ortho[0], centering, offsetx + centering, height + centering, centering, -1.0f, 1.0f, offset0);
bx::mtxOrtho(ortho[1], centering, offsetx + centering, height + centering, centering, -1.0f, 1.0f, offset1);
bgfx::setViewTransform(0, view, ortho[0], BGFX_VIEW_STEREO, ortho[1]);
bgfx::setViewRect(0, 0, 0, hmd->width, hmd->height);
}
else
{
float ortho[16];
bx::mtxOrtho(ortho, centering, width + centering, height + centering, centering, -1.0f, 1.0f);
bgfx::setViewTransform(0, view, ortho);
bgfx::setViewRect(0, 0, 0, width, height);
}
// Submit the debug text.
textBufferManager->submitTextBuffer(transientText, 0);
// Submit the static text.
textBufferManager->submitTextBuffer(staticText, 0);
// Advance to next frame. Rendering thread will be kicked to
// process submitted rendering primitives.
bgfx::frame();
}
fontManager->destroyTtf(fontAwesomeTtf);
fontManager->destroyTtf(visitorTtf);
// Destroy the fonts.
fontManager->destroyFont(fontAwesome72);
fontManager->destroyFont(visitor10);
for (uint32_t ii = 0; ii < numFonts; ++ii)
{
fontManager->destroyFont(fonts[ii]);
}
textBufferManager->destroyTextBuffer(staticText);
textBufferManager->destroyTextBuffer(transientText);
delete textBufferManager;
delete fontManager;
// Shutdown bgfx.
bgfx::shutdown();
return 0;
}
int _main_(int /*_argc*/, char** /*_argv*/)
{
uint32_t width = 1280;
uint32_t height = 720;
uint32_t debug = BGFX_DEBUG_TEXT;
uint32_t reset = BGFX_RESET_VSYNC;
bgfx::init();
bgfx::reset(width, height, reset);
// Enable debug text.
bgfx::setDebug(debug);
// Set view 0 clear state.
bgfx::setViewClear(0
, BGFX_CLEAR_COLOR_BIT | BGFX_CLEAR_DEPTH_BIT
, 0x303030ff
, 1.0f
, 0
);
// Init the text rendering system.
FontManager* fontManager = new FontManager(512);
TextBufferManager* textBufferManager = new TextBufferManager(fontManager);
// Load some TTF files.
const char* fontNames[7] =
{
"font/droidsans.ttf",
"font/chp-fire.ttf",
"font/bleeding_cowboys.ttf",
"font/mias_scribblings.ttf",
"font/ruritania.ttf",
"font/signika-regular.ttf",
"font/five_minutes.otf"
};
const uint32_t fontCount = countof(fontNames);
TrueTypeHandle fontFiles[fontCount];
FontHandle fonts[fontCount];
for (uint32_t ii = 0; ii < fontCount; ++ii)
{
// Instantiate a usable font.
fontFiles[ii] = loadTtf(fontManager, fontNames[ii]);
fonts[ii] = fontManager->createFontByPixelSize(fontFiles[ii], 0, 32);
// Preload glyphs and blit them to atlas.
fontManager->preloadGlyph(fonts[ii], L"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ. \n");
// You can unload the truetype files at this stage, but in that
// case, the set of glyph's will be limited to the set of preloaded
// glyph.
fontManager->destroyTtf(fontFiles[ii]);
}
TrueTypeHandle console_tt = loadTtf(fontManager, "font/visitor1.ttf");
// This font doesn't have any preloaded glyph's but the truetype file
// is loaded so glyph will be generated as needed.
FontHandle consola_16 = fontManager->createFontByPixelSize(console_tt, 0, 10);
//create a static text buffer compatible with alpha font
//a static text buffer content cannot be modified after its first submit.
TextBufferHandle staticText = textBufferManager->createTextBuffer(FONT_TYPE_ALPHA, BufferType::Static);
// The pen position represent the top left of the box of the first line
// of text.
textBufferManager->setPenPosition(staticText, 24.0f, 100.0f);
for (uint32_t ii = 0; ii < fontCount; ++ii)
{
// Add some text to the buffer.
// The position of the pen is adjusted when there is an endline.
textBufferManager->appendText(staticText, fonts[ii], L"The quick brown fox jumps over the lazy dog\n");
}
// Now write some styled text.
// Setup style colors.
textBufferManager->setBackgroundColor(staticText, 0x551111FF);
textBufferManager->setUnderlineColor(staticText, 0xFF2222FF);
textBufferManager->setOverlineColor(staticText, 0x2222FFFF);
textBufferManager->setStrikeThroughColor(staticText, 0x22FF22FF);
// Background.
textBufferManager->setStyle(staticText, STYLE_BACKGROUND);
textBufferManager->appendText(staticText, fonts[0], L"The quick ");
// Strike-through.
textBufferManager->setStyle(staticText, STYLE_STRIKE_THROUGH);
textBufferManager->appendText(staticText, fonts[0], L"brown fox ");
// Overline.
textBufferManager->setStyle(staticText, STYLE_OVERLINE);
textBufferManager->appendText(staticText, fonts[0], L"jumps over ");
// Underline.
textBufferManager->setStyle(staticText, STYLE_UNDERLINE);
textBufferManager->appendText(staticText, fonts[0], L"the lazy ");
// Background + strike-through.
textBufferManager->setStyle(staticText, STYLE_BACKGROUND | STYLE_STRIKE_THROUGH);
textBufferManager->appendText(staticText, fonts[0], L"dog\n");
// Create a transient buffer for real-time data.
TextBufferHandle transientText = textBufferManager->createTextBuffer(FONT_TYPE_ALPHA, BufferType::Transient);
while (!processEvents(width, height, debug, reset) )
{
// Set view 0 default viewport.
bgfx::setViewRect(0, 0, 0, width, height);
// This dummy draw call is here to make sure that view 0 is cleared
// if no other draw calls are submitted to view 0.
bgfx::submit(0);
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 double toMs = 1000.0 / freq;
// Use transient text to display debug information.
wchar_t fpsText[64];
bx::swnprintf(fpsText, countof(fpsText), L"Frame: % 7.3f[ms]", double(frameTime) * toMs);
textBufferManager->clearTextBuffer(transientText);
textBufferManager->setPenPosition(transientText, 20.0, 4.0f);
textBufferManager->appendText(transientText, consola_16, L"bgfx/examples/10-font\n");
textBufferManager->appendText(transientText, consola_16, L"Description: Use the font system to display text and styled text.\n");
textBufferManager->appendText(transientText, consola_16, fpsText);
float at[3] = { 0, 0, 0.0f };
float eye[3] = {0, 0, -1.0f };
float view[16];
float proj[16];
mtxLookAt(view, eye, at);
// Setup a top-left ortho matrix for screen space drawing.
float centering = 0.5f;
mtxOrtho(proj, centering, width + centering, height + centering, centering, -1.0f, 1.0f);
// Set view and projection matrix for view 0.
bgfx::setViewTransform(0, view, proj);
// Submit the debug text.
textBufferManager->submitTextBuffer(transientText, 0);
// Submit the static text.
textBufferManager->submitTextBuffer(staticText, 0);
// Advance to next frame. Rendering thread will be kicked to
// process submitted rendering primitives.
bgfx::frame();
}
fontManager->destroyTtf(console_tt);
// Destroy the fonts.
fontManager->destroyFont(consola_16);
for (uint32_t ii = 0; ii < fontCount; ++ii)
{
fontManager->destroyFont(fonts[ii]);
}
textBufferManager->destroyTextBuffer(staticText);
textBufferManager->destroyTextBuffer(transientText);
delete textBufferManager;
delete fontManager;
// Shutdown bgfx.
bgfx::shutdown();
return 0;
}
