void SDLFontGL::initGL(unsigned int x, unsigned int y, unsigned int w, unsigned int h) {
clearGL();
checkGLError();
m_openglActive = true;
m_charShader.program = loadProgram(char_vertex_shader, char_fragment_shader);
if (m_charShader.program) {
glUseProgram(m_charShader.program);
checkGLError();
m_charShader.aDim = glGetUniformLocation(m_charShader.program, "dim");
m_charShader.aPos = glGetAttribLocation(m_charShader.program, "pos");
m_charShader.aCells = glGetUniformLocation(m_charShader.program, "cells");
m_charShader.aGlyphs = glGetUniformLocation(m_charShader.program, "glyphs");
m_charShader.aColors = glGetUniformLocation(m_charShader.program, "colors");
m_charShader.aGlyphsize = glGetUniformLocation(m_charShader.program, "glyphsize");
m_charShader.aCellsize = glGetUniformLocation(m_charShader.program, "cellsize");
m_charShader.aColorsize = glGetUniformLocation(m_charShader.program, "colorsize");
m_charShader.aBlink = glGetUniformLocation(m_charShader.program, "blink");
checkGLError();
glVertexAttribPointer(m_charShader.aPos, 2, GL_FLOAT, GL_FALSE, 0, vertices);
checkGLError();
glUniform1i(m_charShader.aCells, 0);
checkGLError();
glUniform1i(m_charShader.aGlyphs, 1);
checkGLError();
glUniform1i(m_charShader.aColors, 2);
checkGLError();
}
m_cursorShader.program = loadProgram(cursor_vertex_shader, cursor_fragment_shader);
if (m_cursorShader.program) {
glUseProgram(m_cursorShader.program);
checkGLError();
m_cursorShader.aDim = glGetUniformLocation(m_cursorShader.program, "dim");
m_cursorShader.aPos = glGetAttribLocation(m_cursorShader.program, "pos");
m_cursorShader.aCursorpos = glGetUniformLocation(m_cursorShader.program, "cursorpos");
m_cursorShader.aCursorcolor = glGetUniformLocation(m_cursorShader.program, "cursorcolor");
m_cursorShader.aCursorstyle = glGetUniformLocation(m_cursorShader.program, "cursorstyle");
checkGLError();
glVertexAttribPointer(m_cursorShader.aPos, 2, GL_FLOAT, GL_FALSE, 0, vertices);
checkGLError();
}
m_dimX = x; m_dimY = y; m_dimW = w; m_dimH = h;
updateFonts();
updateDimensions();
updateColors();
updateCursor();
checkGLError();
}
void SDLFontGL::setupFontGL(int fnCount, TTF_Font** fnts, int colCount, SDL_Color *cols) {
clearGL();
assert(fnts && cols);
assert((fnCount > 0) && (colCount > 0));
nFonts = fnCount;
nCols = colCount;
this->fnts = (TTF_Font**)malloc(nFonts*sizeof(TTF_Font*));
memcpy(this->fnts, fnts, nFonts*sizeof(TTF_Font*));
this->cols = (SDL_Color*)malloc(nCols*sizeof(SDL_Color));
memcpy(this->cols, cols, nCols*sizeof(SDL_Color));
GlyphCache = 0;
haveCacheLine = (bool*)malloc(nFonts*MAX_CHARSETS*sizeof(bool));
memset(haveCacheLine, 0, nFonts*MAX_CHARSETS*sizeof(bool));
const Uint16 OStr[] = {'O', 0};
if (TTF_SizeUNICODE(fnts[0], OStr, &nWidth, &nHeight) != 0)
assert(0 && "Failed to size font");
assert((nWidth > 0) && (nHeight > 0));
}
void GLGroundPlane::initGL() {
if (GL_ID) {
clearGL();
}
GL_ID = glGenLists(1);
glNewList(GL_ID, GL_COMPILE);
// draw grid
plotGL();
glEndList();
}
void SDLFontGL::setupFontGL(int fnCount, TTF_Font** fnts, int colCount, SDL_Color *cols) {
clearGL();
assert(fnts && cols);
assert((fnCount > 0) && (colCount > 0));
nFonts = fnCount;
nCols = colCount;
this->fnts = (TTF_Font**)malloc(nFonts*sizeof(TTF_Font*));
memcpy(this->fnts, fnts, nFonts*sizeof(TTF_Font*));
this->cols = (SDL_Color*)malloc(nCols*sizeof(SDL_Color));
memcpy(this->cols, cols, nCols*sizeof(SDL_Color));
GlyphCache = 0;
haveFontLine = (bool*)malloc(nFonts*sizeof(bool));
memset(haveFontLine, 0, nFonts*sizeof(bool));
if (TTF_SizeText(fnts[0], "O", &nWidth, &nHeight) != 0)
assert(0 && "Failed to size font");
assert((nWidth > 0) && (nHeight > 0));
}
void GLGroundPlane::setMinorCount(int count) {
if (_minorCount != count) clearGL();
_minorCount = count;
}
void GLGroundPlane::setMajorDistance(float dist) {
if (_majorDist != dist) clearGL();
_majorDist = dist;
}
void GLGroundPlane::setHeight(float h) {
if (_height != h) clearGL();
_height = h;
}
void GLGroundPlane::setWidth(float w) {
if (_width != w) clearGL();
_width = w;
}
GLGroundPlane::~GLGroundPlane(void) {
if (GL_ID) clearGL();
}
SDLFontGL::~SDLFontGL() {
clearGL();
}
SDLFontGL::~SDLFontGL() {
clearGL();
clearFonts();
}
