Imported existing code

indra/newview/lldrawpoolsky.cpp

@@ -0,0 +1,155 @@
+/** 
+ * @file lldrawpoolsky.cpp
+ * @brief LLDrawPoolSky class implementation
+ *
+ * $LicenseInfo:firstyear=2002&license=viewergpl$
+ * 
+ * Copyright (c) 2002-2009, 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 "lldrawpoolsky.h"
+
+#include "imageids.h"
+
+#include "llagent.h"
+#include "lldrawable.h"
+#include "llface.h"
+#include "llsky.h"
+#include "llviewercamera.h"
+#include "llviewerimagelist.h"
+#include "llviewerregion.h"
+#include "llviewerwindow.h"
+#include "llvosky.h"
+#include "llworld.h" // To get water height
+#include "pipeline.h"
+#include "llviewershadermgr.h"
+
+LLDrawPoolSky::LLDrawPoolSky() :
+	LLFacePool(POOL_SKY), mShader(NULL)
+{
+}
+
+LLDrawPool *LLDrawPoolSky::instancePool()
+{
+	return new LLDrawPoolSky();
+}
+
+void LLDrawPoolSky::prerender()
+{
+	mVertexShaderLevel = LLViewerShaderMgr::instance()->getVertexShaderLevel(LLViewerShaderMgr::SHADER_ENVIRONMENT); 
+	gSky.mVOSkyp->updateGeometry(gSky.mVOSkyp->mDrawable);
+}
+
+void LLDrawPoolSky::render(S32 pass)
+{
+	if (mDrawFace.empty())
+	{
+		return;
+	}
+
+	// Don't draw the sky box if we can and are rendering the WL sky dome.
+	if (gPipeline.canUseWindLightShaders())
+	{
+		return;
+	}
+	
+	// use a shader only underwater
+	if(mVertexShaderLevel > 0 && LLPipeline::sUnderWaterRender)
+	{
+		mShader = &gObjectFullbrightWaterProgram;
+		mShader->bind();
+	}
+	else
+	{
+		// don't use shaders!
+		if (gGLManager.mHasShaderObjects)
+		{
+			// Ironically, we must support shader objects to be
+			// able to use this call.
+			LLGLSLShader::bindNoShader();
+		}
+		mShader = NULL;
+	}
+	
+
+	LLGLSPipelineSkyBox gls_skybox;
+
+	LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
+
+	LLGLSquashToFarClip far_clip(glh_get_current_projection());
+
+	LLGLEnable fog_enable( (mVertexShaderLevel < 1 && LLViewerCamera::getInstance()->cameraUnderWater()) ? GL_FOG : 0);
+
+	gPipeline.disableLights();
+	
+	LLGLDisable clip(GL_CLIP_PLANE0);
+
+	glPushMatrix();
+	LLVector3 origin = LLViewerCamera::getInstance()->getOrigin();
+	glTranslatef(origin.mV[0], origin.mV[1], origin.mV[2]);
+
+	S32 face_count = (S32)mDrawFace.size();
+
+	for (S32 i = 0; i < llmin(6, face_count); ++i)
+	{
+		renderSkyCubeFace(i);
+	}
+
+	LLGLEnable blend(GL_BLEND);
+
+	glPopMatrix();
+}
+
+void LLDrawPoolSky::renderSkyCubeFace(U8 side)
+{
+	LLFace &face = *mDrawFace[LLVOSky::FACE_SIDE0 + side];
+	if (!face.getGeomCount())
+	{
+		return;
+	}
+
+	mSkyTex[side].bindTexture(TRUE);
+	
+	face.renderIndexed();
+
+	if (LLSkyTex::doInterpolate())
+	{
+		LLGLEnable blend(GL_BLEND);
+		mSkyTex[side].bindTexture(FALSE);
+		glColor4f(1, 1, 1, LLSkyTex::getInterpVal()); // lighting is disabled
+		face.renderIndexed();
+	}
+}
+
+void LLDrawPoolSky::renderForSelect()
+{
+}
+
+void LLDrawPoolSky::endRenderPass( S32 pass )
+{
+}