#include #include #include #include "../common/entry.h" #include "../common/dbg.h" #include "../common/math.h" #include "../common/processevents.h" #include "../common/font/font_manager.h" #include "../common/font/text_buffer_manager.h" #include #include static const char* s_shaderPath = NULL; long int fsize(FILE* _file) { long int pos = ftell(_file); fseek(_file, 0L, SEEK_END); long int size = ftell(_file); fseek(_file, pos, SEEK_SET); return size; } static const bgfx::Memory* loadShader(const char* _shaderPath, const char* _shaderName) { char out[512]; strcpy(out, _shaderPath); strcat(out, _shaderName); strcat(out, ".bin"); FILE* file = fopen(out, "rb"); if (NULL != file) { uint32_t size = (uint32_t)fsize(file); const bgfx::Memory* mem = bgfx::alloc(size+1); /*size_t ignore =*/ fread(mem->data, 1, size, file); /*BX_UNUSED(ignore);*/ fclose(file); mem->data[mem->size-1] = '\0'; return mem; } return NULL; } int _main_(int /*_argc*/, char** /*_argv*/) { uint32_t width = 1280; uint32_t height = 720; uint32_t debug = BGFX_DEBUG_TEXT; uint32_t reset = 0; bgfx::init(); bgfx::reset(width, height); // Enable debug text. bgfx::setDebug(debug); // Set view 0 clear state. bgfx::setViewClear(0 , BGFX_CLEAR_COLOR_BIT|BGFX_CLEAR_DEPTH_BIT //, 0x303030ff //, 0xffffffff , 0x000000FF , 1.0f , 0 ); // Setup root path for binary shaders. Shader binaries are different // for each renderer. switch (bgfx::getRendererType() ) { default: case bgfx::RendererType::Direct3D9: s_shaderPath = "shaders/dx9/"; break; case bgfx::RendererType::Direct3D11: s_shaderPath = "shaders/dx11/"; break; case bgfx::RendererType::OpenGL: s_shaderPath = "shaders/glsl/"; break; case bgfx::RendererType::OpenGLES2: case bgfx::RendererType::OpenGLES3: s_shaderPath = "shaders/gles/"; break; } const bgfx::Memory* mem; mem = loadShader(s_shaderPath, "vs_font_basic"); bgfx::VertexShaderHandle vsh = bgfx::createVertexShader(mem); mem = loadShader(s_shaderPath, "fs_font_basic"); bgfx::FragmentShaderHandle fsh = bgfx::createFragmentShader(mem); bgfx::ProgramHandle _basicProgram = bgfx::createProgram(vsh, fsh); bgfx::destroyVertexShader(vsh); bgfx::destroyFragmentShader(fsh); mem = loadShader(s_shaderPath, "vs_font_distance_field"); vsh = bgfx::createVertexShader(mem); mem = loadShader(s_shaderPath, "fs_font_distance_field"); fsh = bgfx::createFragmentShader(mem); bgfx::ProgramHandle _distanceProgram = bgfx::createProgram(vsh, fsh); bgfx::destroyVertexShader(vsh); bgfx::destroyFragmentShader(fsh); mem = loadShader(s_shaderPath, "vs_font_distance_field_subpixel"); vsh = bgfx::createVertexShader(mem); mem = loadShader(s_shaderPath, "fs_font_distance_field_subpixel"); fsh = bgfx::createFragmentShader(mem); bgfx::ProgramHandle _distanceSubpixelProgram = bgfx::createProgram(vsh, fsh); bgfx::destroyVertexShader(vsh); bgfx::destroyFragmentShader(fsh); //init the text rendering system FontManager* fontManager = new FontManager(512); TextBufferManager* textBufferManager = new TextBufferManager(fontManager); textBufferManager->init(_basicProgram, _distanceProgram, _distanceSubpixelProgram); //load a truetype files TrueTypeHandle times_tt = fontManager->loadTrueTypeFromFile("c:/windows/fonts/times.ttf"); FontHandle distance_font = fontManager->createFontByPixelSize(times_tt, 0, 48, FONT_TYPE_DISTANCE); //preload glyph and generate (generate bitmap's) fontManager->preloadGlyph(distance_font, L"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ. \n"); uint32_t fontsCount = 0; FontHandle fonts[64]; fonts[fontsCount++] = distance_font; //generate various sub distance field fonts at various size int32_t step=4; for(int32_t ii = 64; ii>1 ; ii-=step) { if(ii<32) step = 2; //instantiate a usable font FontHandle font = fontManager->createScaledFontToPixelSize(distance_font, ii); fonts[fontsCount++] = font; } //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->unloadTrueType(times_tt); TextBufferHandle staticText = textBufferManager->createTextBuffer(FONT_TYPE_DISTANCE, STATIC); textBufferManager->setPenPosition(staticText, 10.0f, 70.0f); textBufferManager->setTextColor(staticText, 0xFFFFFFFF); //textBufferManager->setTextColor(staticText, 0x000000FF); for(uint32_t ii = 0; ii< fontsCount; ++ii) { textBufferManager->appendText(staticText, fonts[ii], L"The quick brown fox jumps over the lazy dog\n"); //textBufferManager->appendText(staticText, fonts[i], L"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\n"); } 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 debug font to print 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]; float proj[16]; mtxLookAt(view, eye, at); float centering = 0.5f; //setup a top-left ortho matrix for screen space drawing 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); //draw your text textBufferManager->submitTextBuffer(staticText, 0); // Advance to next frame. Rendering thread will be kicked to // process submitted rendering primitives. bgfx::frame(); } //destroy the fonts for(uint32_t ii=0; iidestroyFont(fonts[ii]); } textBufferManager->destroyTextBuffer(staticText); bgfx::destroyProgram(_basicProgram); bgfx::destroyProgram(_distanceProgram); bgfx::destroyProgram(_distanceSubpixelProgram); delete textBufferManager; delete fontManager; // Shutdown bgfx. bgfx::shutdown(); return 0; }