Method drawCacheString

src/util/GLFont.cpp:639–691

Draw cached GLFontCacheString

// Draw cached GLFontCacheString
void GLFont::drawCacheString(GLFontStringCache *fc, float xpos, float ypos, Align hAlign, Align vAlign) const {
    
    float size = (float) fc->pxHeight / (float) fc->vpy;
    
    glPushMatrix();
    glTranslatef(xpos, ypos, 0.0f);
    
    switch (vAlign) {
        case GLFONT_ALIGN_TOP:
            glTranslatef(0.0, -size, 0.0);
            break;
        case GLFONT_ALIGN_CENTER:
            glTranslatef(0.0, -size/2.0, 0.0);
            break;
        default:
            break;
    }
    
    switch (hAlign) {
        case GLFONT_ALIGN_RIGHT:
            glTranslatef(-fc->msgWidth, 0.0, 0.0);
            break;
        case GLFONT_ALIGN_CENTER:
            glTranslatef(-fc->msgWidth / 2.0, 0.0, 0.0);
            break;
        default:
            break;
    }
    
    glEnable(GL_TEXTURE_2D);
    glBindTexture(GL_TEXTURE_2D, texId);
    
    glEnable(GL_BLEND);
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    
    glEnableClientState(GL_VERTEX_ARRAY);
    glEnableClientState(GL_TEXTURE_COORD_ARRAY);
    glVertexPointer(2, GL_FLOAT, 0, &fc->gl_vertices[0]);
    glTexCoordPointer(2, GL_FLOAT, 0, &fc->gl_uv[0]);
    
    glDrawArrays(GL_QUADS, 0, 4 * fc->drawlen);
    
    glVertexPointer(2, GL_FLOAT, 0, nullptr);
    glTexCoordPointer(2, GL_FLOAT, 0, nullptr);

    glDisableClientState(GL_VERTEX_ARRAY);
    glDisableClientState(GL_TEXTURE_COORD_ARRAY);
    
    glPopMatrix();

    glDisable(GL_BLEND);
    glDisable(GL_TEXTURE_2D);
}

// Compile optimized GLFontCacheString
GLFontStringCache *GLFont::cacheString(const std::wstring& str, int pxHeight, int vpx, int vpy) {