From 93260cfeff2382dd1ffeecaef208d37bf21c2a01 Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Wed, 4 May 2022 16:07:50 +0000
Subject: SL-17283 LLReflectionMapManager prototype.  Remove snapshot code
 related overhead from reflection map renders.  Add parallax correction and
 support for multiple reflection maps.

---
 indra/llrender/llcubemap.cpp | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'indra/llrender/llcubemap.cpp')

diff --git a/indra/llrender/llcubemap.cpp b/indra/llrender/llcubemap.cpp
index cc61158aa6..17a487b860 100644
--- a/indra/llrender/llcubemap.cpp
+++ b/indra/llrender/llcubemap.cpp
@@ -166,6 +166,19 @@ void LLCubeMap::init(const std::vector<LLPointer<LLImageRaw> >& rawimages)
 	}
 }
 
+void LLCubeMap::initReflectionMap(U32 resolution, U32 components)
+{
+    U32 texname = 0;
+
+    LLImageGL::generateTextures(1, &texname);
+
+    mImages[0] = new LLImageGL(resolution, resolution, components, TRUE);
+    mImages[0]->setTexName(texname);
+    mImages[0]->setTarget(mTargets[0], LLTexUnit::TT_CUBE_MAP);
+    gGL.getTexUnit(0)->bindManual(LLTexUnit::TT_CUBE_MAP, texname);
+    mImages[0]->setAddressMode(LLTexUnit::TAM_CLAMP);
+}
+
 void LLCubeMap::initEnvironmentMap(const std::vector<LLPointer<LLImageRaw> >& rawimages)
 {
     llassert(rawimages.size() == 6);
@@ -203,6 +216,19 @@ void LLCubeMap::initEnvironmentMap(const std::vector<LLPointer<LLImageRaw> >& ra
     disable();
 }
 
+void LLCubeMap::generateMipMaps()
+{
+    mImages[0]->setUseMipMaps(TRUE);
+    mImages[0]->setHasMipMaps(TRUE);
+    enableTexture(0);
+    bind();
+    mImages[0]->setFilteringOption(LLTexUnit::TFO_ANISOTROPIC);
+    glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
+    glGenerateMipmap(GL_TEXTURE_CUBE_MAP);
+    gGL.getTexUnit(0)->disable();
+    disable();
+}
+
 GLuint LLCubeMap::getGLName()
 {
 	return mImages[0]->getTexName();
-- 
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