// can't unload TTFs, so we'll need to make sure we don't keep reloading them, sadly
void* TTF_Load(Asset &asset) {
TTFFont_t *fnt = new TTFFont_t();
if (ctx == nullptr) {
ctx = glfonsCreate(512, 512, FONS_ZERO_TOPLEFT);
}
int found = fonsGetFontByName(ctx, asset.name);
if (found != FONS_INVALID) {
fnt->valid = true;
fnt->hnd = found;
found++;
return fnt;
}
unsigned char *font;
auto sz = FS_ReadFile(asset.path, (void **)&font);
if (sz == -1) {
Con_Errorf(ERR_GAME, "couldn't load file %s", asset.path);
return nullptr;
}
int hnd = fonsAddFontMem(ctx, asset.name, font, sz, 1);
if (hnd < 0) {
return nullptr;
}
fnt->valid = true;
fnt->hnd = hnd;
return (void*)fnt;
}
void FontContext::initFontContext(int _atlasSize) {
GLFONSparams params;
params.errorCallback = errorCallback;
params.createAtlas = createAtlas;
params.createTexTransforms = createTexTransforms;
params.updateAtlas = updateAtlas;
params.updateTransforms = updateTransforms;
m_fsContext = glfonsCreate(_atlasSize, _atlasSize, FONS_ZERO_TOPLEFT, params, (void*) this);
}
bool
GLHelper::initFont() {
if (myFont == nullptr) {
myFont = glfonsCreate(2048, 2048, FONS_ZERO_BOTTOMLEFT);
if (myFont != nullptr) {
const int fontNormal = fonsAddFontMem(myFont, "medium", data_font_Roboto_Medium_ttf, data_font_Roboto_Medium_ttf_len, 0);
fonsSetFont(myFont, fontNormal);
fonsSetSize(myFont, (float)myFontSize);
}
}
return myFont != nullptr;
}
void ofxFontStash2::setup(int atlasSizePow2){
#ifdef GL_VERSION_3
ofLogNotice("ofxFontStash2") << "creating fontStash GL3";
fs = gl3fonsCreate(atlasSizePow2, atlasSizePow2, FONS_ZERO_TOPLEFT);
#else
ofLogNotice("ofxFontStash2") << "creating fontStash GL2";
fs = glfonsCreate(atlasSizePow2, atlasSizePow2, FONS_ZERO_TOPLEFT);
#endif
if (fs == NULL) {
ofLogError("ofxFontStash2") << "Could not create stash.";
return;
}
}
bool CRenderEngine::DrawTextSt(const char* text, DuiRECT& pos,int style,int iFont,DWORD dwTextColor)
{
if (s_fs == NULL)
{
s_fs = glfonsCreate(512, 512, FONS_ZERO_TOPLEFT);
if (s_fs == NULL)
{
return false;
}
s_fontNormal = fonsAddFont(s_fs, "sans", "msyh.ttf");
if (s_fontNormal == FONS_INVALID)
{
return false;
}
}
float line_height = 15.0f;
//¸ù¾Ýstyle×óÓÒÖмä¶ÔÆë¼ÆËã
float s_x = pos.left;
float s_y = (pos.bottom - pos.top) / 2.f + pos.top;
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
unsigned char a = (dwTextColor) >> 24;
unsigned char r = (dwTextColor & 0xff0000) >> 16;
unsigned char g = (dwTextColor & 0xff00) >> 8;
unsigned char b = (dwTextColor & 0xff);
unsigned int text_clr = glfonsRGBA(r,g,b,a);
fonsClearState(s_fs);
fonsSetSize(s_fs, line_height);
fonsSetFont(s_fs, s_fontNormal);
fonsSetColor(s_fs, text_clr);
fonsDrawText(s_fs, s_x, s_y, text, NULL);
return true;
}
void LikertHCI::initializeText(int threadId, MinVR::WindowRef window)
{
int fontNormal = FONS_INVALID;
struct FONScontext* fs = nullptr;
fs = glfonsCreate(512, 512, FONS_ZERO_TOPLEFT);
if (fs == NULL) {
BOOST_ASSERT_MSG(false, "Could not create stash.");
}
fontNormal = fonsAddFont(fs, "sans", MinVR::ConfigVal("RegularFontFile", "app/fonts/DroidSansMono.ttf", false).c_str());
if (fontNormal == FONS_INVALID) {
BOOST_ASSERT_MSG(false, "Could not add font normal.\n");
}
glUseProgram(0);
glPushAttrib(GL_VIEWPORT_BIT | GL_ENABLE_BIT);
GLuint textFBO;
glGenFramebuffers(1, &textFBO);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, textFBO);
glDrawBuffer(GL_COLOR_ATTACHMENT0);
std::map<std::string, std::string> dummyArgs;
std::shared_ptr<GLSLProgram> shader(new GLSLProgram());
shader->compileShader(MinVR::DataFileUtils::findDataFile("textRendering.vert").c_str(), GLSLShader::VERTEX, dummyArgs);
shader->compileShader(MinVR::DataFileUtils::findDataFile("textRendering.frag").c_str(), GLSLShader::FRAGMENT, dummyArgs);
shader->link();
shader->use();
glClearColor(1.0, 1.0, 1.0, 1.0);
initializeText(threadId, fs, fontNormal, _maxNumLinesInQuestions, 20.0f, shader, 72.0f, _questions, "QuestionText_", _questionTextures, _questionSizes);
initializeText(threadId, fs, fontNormal, _maxNumLinesInAnswers, 15.0f, shader, 35.0f, _answers, "AnswerText_", _answerTextures, _answerSizes);
double windowHeight = window->getHeight();
double windowWidth = window->getWidth();
_padding = 0.05;
double numAnswersPerQuestion = 7.0;
_availableWidth = glm::length(offAxisCamera->getBottomRight() - offAxisCamera->getBottomLeft()) - (2*_padding);
_individualSize = _availableWidth/ (numAnswersPerQuestion);
glm::dvec3 start(offAxisCamera->getBottomLeft().x + _padding + _individualSize/2.0, 0.0, 0.5);
glm::dvec3 spacing(_individualSize, 0.0, 0.0);
for(int i=0; i < _answers.size(); i++) {
double texHeight = _answerTextures[0][i]->getHeight(); // all answers are the same dimensions;
double texWidth = _answerTextures[0][i]->getWidth();
double quadHeightScreen = texHeight/windowHeight;
double quadWidthScreen = texWidth/windowWidth;
glm::dvec3 quad = glm::abs(convertScreenToRoomCoordinates(glm::dvec2(quadWidthScreen+0.5, quadHeightScreen+0.5)));
_answerHeights.push_back(quad.z);
glm::dvec2 size = _answerSizes[threadId][i];
double halfWidth = _answerHeights[i] * size.x / size.y / 2.0f;
double halfHeight = _answerHeights[i] / 2.0f;
glm::dvec3 centerPt = start+ (double)i*spacing;
glm::dvec3 low(-halfWidth, -0.001, -halfHeight);
glm::dvec3 high(halfWidth, 0.001, halfHeight);
AABox bounds(start + (double)i*spacing + low, start + (double)i*spacing +high);
_answerBounds.push_back(bounds);
}
for(int i=0; i < _questions.size(); i++) {
double texHeight = _questionTextures[0][i]->getHeight(); // all answers are the same dimensions;
double texWidth = _questionTextures[0][i]->getWidth();
double quadHeightScreen = texHeight/windowHeight;
double quadWidthScreen = texWidth/windowWidth;
glm::dvec3 quad = glm::abs(convertScreenToRoomCoordinates(glm::dvec2(quadWidthScreen+0.5, quadHeightScreen+0.5)));
_questionHeights.push_back(quad.z);
}
glfonsDelete(fs);
glUseProgram(0);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
glDeleteFramebuffers(1, &textFBO);
glPopAttrib(); // restore viewport and enabled bits
glEnable(GL_TEXTURE_2D);
// restore the clear color
glm::dvec3 clearColor = MinVR::ConfigVal("ClearColor", glm::dvec3(0.1), false);
glClearColor(clearColor.r, clearColor.g, clearColor.b, 1.0f);
}
int main()
{
int fontNormal = FONS_INVALID;
int fontItalic = FONS_INVALID;
int fontBold = FONS_INVALID;
int fontJapanese = FONS_INVALID;
GLFWwindow* window;
const GLFWvidmode* mode;
if (!glfwInit())
return -1;
mode = glfwGetVideoMode(glfwGetPrimaryMonitor());
window = glfwCreateWindow(mode->width - 40, mode->height - 80, "Font Stash", NULL, NULL);
if (!window) {
glfwTerminate();
return -1;
}
glfwSetKeyCallback(window, key);
glfwMakeContextCurrent(window);
fs = glfonsCreate(256, 256, FONS_ZERO_TOPLEFT);
if (fs == NULL) {
printf("Could not create stash.\n");
return -1;
}
fonsSetErrorCallback(fs, stashError, fs);
fontNormal = fonsAddFont(fs, "sans", "../example/DroidSerif-Regular.ttf");
if (fontNormal == FONS_INVALID) {
printf("Could not add font normal.\n");
return -1;
}
fontItalic = fonsAddFont(fs, "sans-italic", "../example/DroidSerif-Italic.ttf");
if (fontItalic == FONS_INVALID) {
printf("Could not add font italic.\n");
return -1;
}
fontBold = fonsAddFont(fs, "sans-bold", "../example/DroidSerif-Bold.ttf");
if (fontBold == FONS_INVALID) {
printf("Could not add font bold.\n");
return -1;
}
fontJapanese = fonsAddFont(fs, "sans-jp", "../example/DroidSansJapanese.ttf");
if (fontJapanese == FONS_INVALID) {
printf("Could not add font japanese.\n");
return -1;
}
while (!glfwWindowShouldClose(window))
{
float sx, sy, dx, dy, lh = 0;
int width, height;
int atlasw, atlash;
unsigned int white,black,brown,blue;
char msg[64];
glfwGetFramebufferSize(window, &width, &height);
// Update and render
glViewport(0, 0, width, height);
glClearColor(0.3f, 0.3f, 0.32f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_TEXTURE_2D);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0,width,height,0,-1,1);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glDisable(GL_DEPTH_TEST);
glColor4ub(255,255,255,255);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_CULL_FACE);
white = glfonsRGBA(255,255,255,255);
brown = glfonsRGBA(192,128,0,128);
blue = glfonsRGBA(0,192,255,255);
black = glfonsRGBA(0,0,0,255);
sx = 50; sy = 50;
dx = sx; dy = sy;
dash(dx,dy);
fonsClearState(fs);
fonsSetSize(fs, size);
fonsSetFont(fs, fontNormal);
fonsVertMetrics(fs, NULL, NULL, &lh);
dx = sx;
dy += lh;
dash(dx,dy);
fonsSetSize(fs, size);
fonsSetFont(fs, fontNormal);
fonsSetColor(fs, white);
dx = fonsDrawText(fs, dx,dy,"The quick ",NULL);
fonsSetSize(fs, size/2);
fonsSetFont(fs, fontItalic);
fonsSetColor(fs, brown);
dx = fonsDrawText(fs, dx,dy,"brown ",NULL);
fonsSetSize(fs, size/3);
fonsSetFont(fs, fontNormal);
fonsSetColor(fs, white);
dx = fonsDrawText(fs, dx,dy,"fox ",NULL);
fonsSetSize(fs, 14);
fonsSetFont(fs, fontNormal);
fonsSetColor(fs, white);
fonsDrawText(fs, 20, height-20,"Press UP / DOWN keys to change font size and to trigger atlas full callback, R to reset atlas, E to expand atlas.",NULL);
fonsGetAtlasSize(fs, &atlasw, &atlash);
snprintf(msg, sizeof(msg), "Atlas: %d × %d", atlasw, atlash);
fonsDrawText(fs, 20, height-50, msg, NULL);
fonsDrawDebug(fs, width - atlasw - 20, 20.0);
glEnable(GL_DEPTH_TEST);
glfwSwapBuffers(window);
glfwPollEvents();
}
glfonsDelete(fs);
glfwTerminate();
return 0;
}
