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 | BGFX_CLEAR_DEPTH , 0x303030ff , 1.0f , 0 ); // Imgui. imguiCreate(); char* bigText = loadText( "text/sherlock_holmes_a_scandal_in_bohemia_arthur_conan_doyle.txt"); // Init the text rendering system. FontManager* fontManager = new FontManager(512); TextBufferManager* textBufferManager = new TextBufferManager(fontManager); TrueTypeHandle font = loadTtf(fontManager, "font/special_elite.ttf"); // Create a distance field font. FontHandle fontSdf = fontManager->createFontByPixelSize(font, 0, 48, FONT_TYPE_DISTANCE); // Create a scaled down version of the same font (without adding anything to the atlas). FontHandle fontScaled = fontManager->createScaledFontToPixelSize(fontSdf, 14); TextLineMetrics metrics(fontManager->getFontInfo(fontScaled) ); uint32_t lineCount = metrics.getLineCount(bigText); float visibleLineCount = 20.0f; const char* textBegin = 0; const char* textEnd = 0; metrics.getSubText(bigText, 0, (uint32_t)visibleLineCount, textBegin, textEnd); TextBufferHandle scrollableBuffer = textBufferManager->createTextBuffer(FONT_TYPE_DISTANCE, BufferType::Transient); textBufferManager->setTextColor(scrollableBuffer, 0xFFFFFFFF); textBufferManager->appendText(scrollableBuffer, fontScaled, textBegin, textEnd); entry::MouseState mouseState; int32_t scrollArea = 0; const int32_t guiPanelWidth = 250; const int32_t guiPanelHeight = 200; float textScroll = 0.0f; float textRotation = 0.0f; float textScale = 1.0f; float textSize = 14.0f; 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_mz , width , height ); imguiBeginScrollArea("Text Area" , width - guiPanelWidth - 10 , 10 , guiPanelWidth , guiPanelHeight , &scrollArea ); imguiSeparatorLine(); bool recomputeVisibleText = false; recomputeVisibleText |= imguiSlider("Number of lines", visibleLineCount, 1.0f, 177.0f , 1.0f); if (imguiSlider("Font size", textSize, 6.0f, 64.0f , 1.0f) ) { fontManager->destroyFont(fontScaled); fontScaled = fontManager->createScaledFontToPixelSize(fontSdf, (uint32_t) textSize); metrics = TextLineMetrics(fontManager->getFontInfo(fontScaled) ); recomputeVisibleText = true; } recomputeVisibleText |= imguiSlider("Scroll", textScroll, 0.0f, (lineCount-visibleLineCount) , 1.0f); imguiSlider("Rotate", textRotation, 0.0f, bx::pi*2.0f , 0.1f); recomputeVisibleText |= imguiSlider("Scale", textScale, 0.1f, 10.0f , 0.1f); if (recomputeVisibleText) { textBufferManager->clearTextBuffer(scrollableBuffer); metrics.getSubText(bigText,(uint32_t)textScroll, (uint32_t)(textScroll+visibleLineCount), textBegin, textEnd); textBufferManager->appendText(scrollableBuffer, fontScaled, textBegin, textEnd); } imguiEndScrollArea(); imguiEndFrame(); // 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 debug font to print32_t information about this example. bgfx::dbgTextClear(); bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/11-fontsdf"); bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Use a single distance field font to render text of various size."); bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime) * toMs); 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 viewOffset = width/4.0f; const float viewWidth = width/2.0f; bx::mtxOrtho(ortho[0], centering + viewOffset, centering + viewOffset + viewWidth, height + centering, centering, -1.0f, 1.0f, offset0); bx::mtxOrtho(ortho[1], centering + viewOffset, centering + viewOffset + viewWidth, 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); } //very crude approximation :( float textAreaWidth = 0.5f * 66.0f * fontManager->getFontInfo(fontScaled).maxAdvanceWidth; float textRotMat[16]; float textCenterMat[16]; float textScaleMat[16]; float screenCenterMat[16]; bx::mtxRotateZ(textRotMat, textRotation); bx::mtxTranslate(textCenterMat, -(textAreaWidth * 0.5f), (-visibleLineCount)*metrics.getLineHeight()*0.5f, 0); bx::mtxScale(textScaleMat, textScale, textScale, 1.0f); bx::mtxTranslate(screenCenterMat, ( (width) * 0.5f), ( (height) * 0.5f), 0); //first translate to text center, then scale, then rotate float tmpMat[16]; bx::mtxMul(tmpMat, textCenterMat, textRotMat); float tmpMat2[16]; bx::mtxMul(tmpMat2, tmpMat, textScaleMat); float tmpMat3[16]; bx::mtxMul(tmpMat3, tmpMat2, screenCenterMat); // Set model matrix for rendering. bgfx::setTransform(tmpMat3); // Draw your text. textBufferManager->submitTextBuffer(scrollableBuffer, 0); // Advance to next frame. Rendering thread will be kicked to // process submitted rendering primitives. bgfx::frame(); } imguiDestroy(); free(bigText); fontManager->destroyTtf(font); // Destroy the fonts. fontManager->destroyFont(fontSdf); fontManager->destroyFont(fontScaled); textBufferManager->destroyTextBuffer(scrollableBuffer); 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; }