2013-05-15 17:07:04 +04:00
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/*
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* Copyright 2013 Jeremie Roy. All rights reserved.
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* License: http://www.opensource.org/licenses/BSD-2-Clause
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*/
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2013-04-23 00:42:11 +04:00
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#include <bgfx.h>
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#include <bx/bx.h>
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#include <bx/timer.h>
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#include "../common/entry.h"
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#include "../common/dbg.h"
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#include "../common/math.h"
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#include "../common/processevents.h"
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#include "../common/font/font_manager.h"
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#include "../common/font/text_buffer_manager.h"
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#include <stdio.h>
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#include <string.h>
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int _main_(int /*_argc*/, char** /*_argv*/)
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{
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uint32_t width = 1280;
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uint32_t height = 720;
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uint32_t debug = BGFX_DEBUG_TEXT;
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uint32_t reset = 0;
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2013-05-07 17:51:19 +04:00
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bgfx::init();
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2013-04-23 00:42:11 +04:00
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bgfx::reset(width, height);
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// Enable debug text.
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bgfx::setDebug(debug);
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// Set view 0 clear state.
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bgfx::setViewClear(0
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, BGFX_CLEAR_COLOR_BIT|BGFX_CLEAR_DEPTH_BIT
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, 0x303030ff
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, 1.0f
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, 0
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);
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2013-05-08 21:55:20 +04:00
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2013-04-23 00:42:11 +04:00
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//init the text rendering system
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2013-04-23 19:18:54 +04:00
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FontManager* fontManager = new FontManager(512);
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TextBufferManager* textBufferManager = new TextBufferManager(fontManager);
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2013-05-07 17:51:19 +04:00
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2013-04-23 00:42:11 +04:00
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//load some truetype files
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2013-05-08 21:55:20 +04:00
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const char* fontNames[7] = {
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"font/droidsans.ttf",
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"font/chp-fire.ttf",
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"font/bleeding_cowboys.ttf",
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"font/mias_scribblings.ttf",
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"font/ruritania.ttf",
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"font/signika-regular.ttf",
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"font/five_minutes.otf"
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};
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const uint32_t fontCount = sizeof(fontNames)/sizeof(const char*);
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2013-04-23 00:42:11 +04:00
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2013-05-08 21:55:20 +04:00
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TrueTypeHandle fontFiles[fontCount];
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FontHandle fonts[fontCount];
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for(int32_t ii = 0; ii<fontCount ; ++ii)
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{
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//instantiate a usable font
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fontFiles[ii] = fontManager->loadTrueTypeFromFile(fontNames[ii]);
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fonts[ii] = fontManager->createFontByPixelSize(fontFiles[ii], 0, 32);
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//preload glyphs and blit them to atlas
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fontManager->preloadGlyph(fonts[ii], L"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ. \n");
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//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
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fontManager->unloadTrueType(fontFiles[ii]);
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}
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TrueTypeHandle console_tt = fontManager->loadTrueTypeFromFile("font/visitor1.ttf");
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2013-04-23 00:42:11 +04:00
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//this font doesn't have any preloaded glyph's but the truetype file is loaded
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//so glyph will be generated as needed
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2013-05-08 21:55:20 +04:00
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FontHandle consola_16 = fontManager->createFontByPixelSize(console_tt, 0, 10);
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2013-04-23 00:42:11 +04:00
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//create a static text buffer compatible with alpha font
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//a static text buffer content cannot be modified after its first submit.
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2013-04-23 19:18:54 +04:00
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TextBufferHandle staticText = textBufferManager->createTextBuffer(FONT_TYPE_ALPHA, STATIC);
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2013-04-23 00:42:11 +04:00
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//the pen position represent the top left of the box of the first line of text
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2013-05-08 21:55:20 +04:00
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textBufferManager->setPenPosition(staticText, 24.0f, 100.0f);
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for(int32_t ii = 0; ii<fontCount ; ++ii)
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{
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//add some text to the buffer
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textBufferManager->appendText(staticText, fonts[ii], L"The quick brown fox jumps over the lazy dog\n");
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//the position of the pen is adjusted when there is an endline
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}
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// Now write some styled text
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2013-04-23 00:42:11 +04:00
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//setup style colors
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textBufferManager->setBackgroundColor(staticText, 0x551111FF);
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textBufferManager->setUnderlineColor(staticText, 0xFF2222FF);
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textBufferManager->setOverlineColor(staticText, 0x2222FFFF);
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2013-05-08 21:55:20 +04:00
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textBufferManager->setStrikeThroughColor(staticText, 0x22FF22FF);
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2013-04-23 00:42:11 +04:00
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//text + bkg
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2013-04-23 19:18:54 +04:00
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textBufferManager->setStyle(staticText, STYLE_BACKGROUND);
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2013-05-08 21:55:20 +04:00
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textBufferManager->appendText(staticText, fonts[0], L"The quick ");
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2013-04-23 00:42:11 +04:00
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//text + strike-through
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2013-04-23 19:18:54 +04:00
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textBufferManager->setStyle(staticText, STYLE_STRIKE_THROUGH);
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2013-05-08 21:55:20 +04:00
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textBufferManager->appendText(staticText, fonts[0], L"brown fox ");
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2013-04-23 00:42:11 +04:00
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//text + overline
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2013-04-23 19:18:54 +04:00
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textBufferManager->setStyle(staticText, STYLE_OVERLINE);
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2013-05-08 21:55:20 +04:00
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textBufferManager->appendText(staticText, fonts[0], L"jumps over ");
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2013-04-23 00:42:11 +04:00
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//text + underline
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2013-04-23 19:18:54 +04:00
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textBufferManager->setStyle(staticText, STYLE_UNDERLINE);
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2013-05-08 21:55:20 +04:00
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textBufferManager->appendText(staticText, fonts[0], L"the lazy ");
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2013-04-23 00:42:11 +04:00
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//text + bkg + strike-through
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2013-04-23 19:18:54 +04:00
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textBufferManager->setStyle(staticText, STYLE_BACKGROUND|STYLE_STRIKE_THROUGH);
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2013-05-08 21:55:20 +04:00
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textBufferManager->appendText(staticText, fonts[0], L"dog\n");
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2013-04-23 00:42:11 +04:00
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//create a transient buffer for realtime data
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2013-04-23 19:18:54 +04:00
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TextBufferHandle transientText = textBufferManager->createTextBuffer(FONT_TYPE_ALPHA, TRANSIENT);
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2013-04-23 00:42:11 +04:00
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uint32_t w = 0,h = 0;
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while (!processEvents(width, height, debug, reset) )
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{
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if(w!=width|| h!=height)
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{
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w=width;
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h= height;
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printf("ri: %d,%d\n",width,height);
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}
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// Set view 0 default viewport.
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bgfx::setViewRect(0, 0, 0, width, height);
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// This dummy draw call is here to make sure that view 0 is cleared
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// if no other draw calls are submitted to view 0.
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bgfx::submit(0);
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int64_t now = bx::getHPCounter();
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static int64_t last = now;
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const int64_t frameTime = now - last;
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last = now;
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const double freq = double(bx::getHPFrequency() );
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const double toMs = 1000.0/freq;
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2013-04-23 16:29:35 +04:00
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// Use debug font to print information about this example.
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//bgfx::dbgTextClear();
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//bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/10-font");
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//bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Use the font system to display text and styled text.");
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//bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs);
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//Use transient text to display debug information
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//Code below is similar to commented code above
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wchar_t fpsText[64];
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swprintf(fpsText,L"Frame: % 7.3f[ms]", double(frameTime)*toMs);
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2013-04-23 00:42:11 +04:00
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2013-04-23 16:29:35 +04:00
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textBufferManager->clearTextBuffer(transientText);
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textBufferManager->setPenPosition(transientText, 20.0, 4.0f);
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textBufferManager->appendText(transientText, consola_16, L"bgfx/examples/10-font\n");
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textBufferManager->appendText(transientText, consola_16, L"Description: Use the font system to display text and styled text.\n");
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textBufferManager->appendText(transientText, consola_16, fpsText);
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2013-04-23 00:42:11 +04:00
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float at[3] = { 0, 0, 0.0f };
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float eye[3] = {0, 0, -1.0f };
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float view[16];
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float proj[16];
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2013-05-09 01:55:54 +04:00
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mtxLookAt(view, eye, at);
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2013-04-23 00:42:11 +04:00
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//setup a top-left ortho matrix for screen space drawing
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float centering = 0.5f;
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mtxOrtho(proj, centering, width+centering,height+centering, centering,-1.0f, 1.0f);
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// Set view and projection matrix for view 0.
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bgfx::setViewTransform(0, view, proj);
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2013-04-23 16:29:35 +04:00
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//submit the debug text
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textBufferManager->submitTextBuffer(transientText, 0);
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2013-04-23 00:42:11 +04:00
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//submit the static text
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textBufferManager->submitTextBuffer(staticText, 0);
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2013-04-23 16:29:35 +04:00
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2013-04-23 00:42:11 +04:00
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// Advance to next frame. Rendering thread will be kicked to
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// process submitted rendering primitives.
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bgfx::frame();
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}
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2013-05-08 21:55:20 +04:00
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fontManager->unloadTrueType(console_tt);
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//destroy the fonts
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fontManager->destroyFont(consola_16);
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for(int32_t ii = 0; ii<fontCount ; ++ii)
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{
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fontManager->destroyFont(fonts[ii]);
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}
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2013-04-23 00:42:11 +04:00
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textBufferManager->destroyTextBuffer(staticText);
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textBufferManager->destroyTextBuffer(transientText);
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delete textBufferManager;
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delete fontManager;
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// Shutdown bgfx.
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bgfx::shutdown();
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return 0;
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}
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