/** * @file llhudrender.cpp * @brief LLHUDRender class implementation * * $LicenseInfo:firstyear=2002&license=viewergpl$ * * Copyright (c) 2002-2008, Linden Research, Inc. * * Second Life Viewer Source Code * The source code in this file ("Source Code") is provided by Linden Lab * to you under the terms of the GNU General Public License, version 2.0 * ("GPL"), unless you have obtained a separate licensing agreement * ("Other License"), formally executed by you and Linden Lab. Terms of * the GPL can be found in doc/GPL-license.txt in this distribution, or * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 * * There are special exceptions to the terms and conditions of the GPL as * it is applied to this Source Code. View the full text of the exception * in the file doc/FLOSS-exception.txt in this software distribution, or * online at http://secondlifegrid.net/programs/open_source/licensing/flossexception * * By copying, modifying or distributing this software, you acknowledge * that you have read and understood your obligations described above, * and agree to abide by those obligations. * * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, * COMPLETENESS OR PERFORMANCE. * $/LicenseInfo$ */ #include "llviewerprecompiledheaders.h" #include "llhudrender.h" #include "llrender.h" #include "llgl.h" #include "llviewercamera.h" #include "v3math.h" #include "llquaternion.h" #include "llfontgl.h" #include "llimagegl.h" #include "llglheaders.h" #include "llviewerwindow.h" void hud_render_utf8text(const std::string &str, const LLVector3 &pos_agent, const LLFontGL &font, const U8 style, const F32 x_offset, const F32 y_offset, const LLColor4& color, const BOOL orthographic) { LLWString wstr(utf8str_to_wstring(str)); hud_render_text(wstr, pos_agent, font, style, x_offset, y_offset, color, orthographic); } void hud_render_text(const LLWString &wstr, const LLVector3 &pos_agent, const LLFontGL &font, const U8 style, const F32 x_offset, const F32 y_offset, const LLColor4& color, const BOOL orthographic) { // Do cheap plane culling LLVector3 dir_vec = pos_agent - LLViewerCamera::getInstance()->getOrigin(); dir_vec /= dir_vec.magVec(); if (wstr.empty() || (!orthographic && dir_vec * LLViewerCamera::getInstance()->getAtAxis() <= 0.f)) { return; } LLVector3 right_axis; LLVector3 up_axis; if (orthographic) { right_axis.setVec(0.f, -1.f / gViewerWindow->getWindowHeight(), 0.f); up_axis.setVec(0.f, 0.f, 1.f / gViewerWindow->getWindowHeight()); } else { LLViewerCamera::getInstance()->getPixelVectors(pos_agent, up_axis, right_axis); } LLCoordFrame render_frame = *LLViewerCamera::getInstance(); LLQuaternion rot; if (!orthographic) { rot = render_frame.getQuaternion(); rot = rot * LLQuaternion(-F_PI_BY_TWO, LLViewerCamera::getInstance()->getYAxis()); rot = rot * LLQuaternion(F_PI_BY_TWO, LLViewerCamera::getInstance()->getXAxis()); } else { rot = LLQuaternion(-F_PI_BY_TWO, LLVector3(0.f, 0.f, 1.f)); rot = rot * LLQuaternion(-F_PI_BY_TWO, LLVector3(0.f, 1.f, 0.f)); } F32 angle; LLVector3 axis; rot.getAngleAxis(&angle, axis); LLVector3 render_pos = pos_agent + (floorf(x_offset) * right_axis) + (floorf(y_offset) * up_axis); //get the render_pos in screen space F64 winX, winY, winZ; gluProject(render_pos.mV[0], render_pos.mV[1], render_pos.mV[2], gGLModelView, gGLProjection, (GLint*) gGLViewport, &winX, &winY, &winZ); //fonts all render orthographically, set up projection glMatrixMode(GL_PROJECTION); glPushMatrix(); glMatrixMode(GL_MODELVIEW); LLUI::pushMatrix(); gViewerWindow->setup2DRender(); LLUI::loadIdentity(); LLUI::translate((F32) winX*1.0f/LLFontGL::sScaleX, (F32) winY*1.0f/(LLFontGL::sScaleY), -(((F32) winZ*2.f)-1.f)); //glRotatef(angle * RAD_TO_DEG, axis.mV[VX], axis.mV[VY], axis.mV[VZ]); //glScalef(right_scale, up_scale, 1.f); F32 right_x; font.render(wstr, 0, 0, 0, color, LLFontGL::LEFT, LLFontGL::BASELINE, style, wstr.length(), 1000, &right_x); LLUI::popMatrix(); glMatrixMode(GL_PROJECTION); glPopMatrix(); glMatrixMode(GL_MODELVIEW); }