llhudrender.cpp
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- /**
- * @file llhudrender.cpp
- * @brief LLHUDRender class implementation
- *
- * $LicenseInfo:firstyear=2002&license=viewergpl$
- *
- * Copyright (c) 2002-2010, 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 "llglheaders.h"
- #include "llviewerwindow.h"
- #include "llui.h"
- void hud_render_utf8text(const std::string &str, const LLVector3 &pos_agent,
- const LLFontGL &font,
- const U8 style,
- const LLFontGL::ShadowType shadow,
- 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, shadow, x_offset, y_offset, color, orthographic);
- }
- void hud_render_text(const LLWString &wstr, const LLVector3 &pos_agent,
- const LLFontGL &font,
- const U8 style,
- const LLFontGL::ShadowType shadow,
- const F32 x_offset, const F32 y_offset,
- const LLColor4& color,
- const BOOL orthographic)
- {
- LLViewerCamera* camera = LLViewerCamera::getInstance();
- // Do cheap plane culling
- LLVector3 dir_vec = pos_agent - camera->getOrigin();
- dir_vec /= dir_vec.magVec();
- if (wstr.empty() || (!orthographic && dir_vec * camera->getAtAxis() <= 0.f))
- {
- return;
- }
- LLVector3 right_axis;
- LLVector3 up_axis;
- if (orthographic)
- {
- right_axis.setVec(0.f, -1.f / gViewerWindow->getWorldViewWidthRaw(), 0.f);
- up_axis.setVec(0.f, 0.f, 1.f / gViewerWindow->getWorldViewHeightRaw());
- }
- else
- {
- camera->getPixelVectors(pos_agent, up_axis, right_axis);
- }
- LLCoordFrame render_frame = *camera;
- LLQuaternion rot;
- if (!orthographic)
- {
- rot = render_frame.getQuaternion();
- rot = rot * LLQuaternion(-F_PI_BY_TWO, camera->getYAxis());
- rot = rot * LLQuaternion(F_PI_BY_TWO, camera->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;
- LLRect world_view_rect = gViewerWindow->getWorldViewRectRaw();
- S32 viewport[4];
- viewport[0] = world_view_rect.mLeft;
- viewport[1] = world_view_rect.mBottom;
- viewport[2] = world_view_rect.getWidth();
- viewport[3] = world_view_rect.getHeight();
- gluProject(render_pos.mV[0], render_pos.mV[1], render_pos.mV[2],
- gGLModelView, gGLProjection, (GLint*) viewport,
- &winX, &winY, &winZ);
-
- //fonts all render orthographically, set up projection``
- glMatrixMode(GL_PROJECTION);
- glPushMatrix();
- glMatrixMode(GL_MODELVIEW);
-
- LLUI::pushMatrix();
-
- gl_state_for_2d(world_view_rect.getWidth(), world_view_rect.getHeight());
- gViewerWindow->setup3DViewport();
- //gViewerWindow->setup2DRender();
- winX -= world_view_rect.mLeft;
- winY -= world_view_rect.mBottom;
- 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, shadow, wstr.length(), 1000, &right_x);
- LLUI::popMatrix();
-
- glMatrixMode(GL_PROJECTION);
- glPopMatrix();
- glMatrixMode(GL_MODELVIEW);
- }