MAINT-2968 Fix for crash on AMD hardware running current drivers.

6 files changed, 27 insertions, 147 deletions

diff --git a/indra/llrender/llcubemap.cpp b/indra/llrender/llcubemap.cpp
index 362452d837..45a3b18179 100755
--- a/indra/llrender/llcubemap.cpp
+++ b/indra/llrender/llcubemap.cpp
@@ -81,7 +81,7 @@ void LLCubeMap::initGL()
 		{
 			U32 texname = 0;
 			
-			LLImageGL::generateTextures(LLTexUnit::TT_CUBE_MAP, GL_RGB8, 1, &texname);
+			LLImageGL::generateTextures(1, &texname);
 
 			for (int i = 0; i < 6; i++)
 			{
diff --git a/indra/llrender/llimagegl.cpp b/indra/llrender/llimagegl.cpp
index 6a37d31415..ab875141c5 100755
--- a/indra/llrender/llimagegl.cpp
+++ b/indra/llrender/llimagegl.cpp
@@ -54,8 +54,6 @@ S32 LLImageGL::sGlobalTextureMemoryInBytes		= 0;
 S32 LLImageGL::sBoundTextureMemoryInBytes		= 0;
 S32 LLImageGL::sCurBoundTextureMemory	= 0;
 S32 LLImageGL::sCount					= 0;
-LLImageGL::dead_texturelist_t LLImageGL::sDeadTextureList[LLTexUnit::TT_NONE];
-U32 LLImageGL::sCurTexName = 1;
 
 BOOL LLImageGL::sGlobalUseAnisotropic	= FALSE;
 F32 LLImageGL::sLastFrameTime			= 0.f;
@@ -716,7 +714,12 @@ void LLImageGL::setImage(const U8* data_in, BOOL data_hasmips)
 					mMipLevels = wpo2(llmax(w, h));
 
 					//use legacy mipmap generation mode (note: making this condional can cause rendering issues)
-					glTexParameteri(mTarget, GL_GENERATE_MIPMAP, GL_TRUE);
+					// -- but making it not conditional triggers deprecation warnings when core profile is enabled
+					//		(some rendering issues while core profile is enabled are acceptable at this point in time)
+					if (!LLRender::sGLCoreProfile)
+					{
+						glTexParameteri(mTarget, GL_GENERATE_MIPMAP, GL_TRUE);
+					}
 
 					LLImageGL::setManualImage(mTarget, 0, mFormatInternal,
 								 w, h, 
@@ -1084,95 +1087,19 @@ BOOL LLImageGL::setSubImageFromFrameBuffer(S32 fb_x, S32 fb_y, S32 x_pos, S32 y_
 
 // static
 static LLFastTimer::DeclareTimer FTM_GENERATE_TEXTURES("generate textures");
-void LLImageGL::generateTextures(LLTexUnit::eTextureType type, U32 format, S32 numTextures, U32 *textures)
+void LLImageGL::generateTextures(S32 numTextures, U32 *textures)
 {
 	LLFastTimer t(FTM_GENERATE_TEXTURES);
-	bool empty = true;
-
-	if (LLRender::sGLCoreProfile)
-	{
-		switch (format)
-		{
-			case GL_LUMINANCE8: format = GL_RGB8; break;
-			case GL_LUMINANCE8_ALPHA8:
-			case GL_ALPHA8: format = GL_RGBA8; break;
-		}
-	}
-
-	dead_texturelist_t::iterator iter = sDeadTextureList[type].find(format);
-	
-	if (iter != sDeadTextureList[type].end())
-	{
-		empty = iter->second.empty();
-	}
-	
-	for (S32 i = 0; i < numTextures; ++i)
-	{
-		if (!empty)
-		{
-			textures[i] = iter->second.front();
-			iter->second.pop_front();
-			empty = iter->second.empty();
-		}
-		else
-		{
-			textures[i] = sCurTexName++;
-		}
-	}
+	glGenTextures(numTextures, textures);
 }
 
 // static
-void LLImageGL::deleteTextures(LLTexUnit::eTextureType type, U32 format, S32 mip_levels, S32 numTextures, U32 *textures, bool immediate)
+void LLImageGL::deleteTextures(S32 numTextures, U32 *textures)
 {
 	if (gGLManager.mInited)
 	{
-		switch (format)
-		{
-			case 0:
-
-			// We get ARB errors in debug when attempting to use glTexImage2D with these deprecated pix formats
-			//
-			case GL_LUMINANCE8:
-			case GL_INTENSITY8:
-			case GL_ALPHA8:
-				glDeleteTextures(numTextures, textures);
-			break;
-
-			default:
-			{
-				if (type == LLTexUnit::TT_CUBE_MAP || mip_levels == -1)
-		{ //unknown internal format or unknown number of mip levels, not safe to reuse
-			glDeleteTextures(numTextures, textures);
-		}
-		else
-		{
-			for (S32 i = 0; i < numTextures; ++i)
-			{ //remove texture from VRAM by setting its size to zero
-
-				for (S32 j = 0; j <= mip_levels; j++)
-				{
-					gGL.getTexUnit(0)->bindManual(type, textures[i]);
-							U32 internal_type = LLTexUnit::getInternalType(type);
-							glTexImage2D(internal_type, j, format, 0, 0, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
-							stop_glerror();
-				}
-
-				llassert(std::find(sDeadTextureList[type][format].begin(),
-								   sDeadTextureList[type][format].end(), textures[i]) == 
-								   sDeadTextureList[type][format].end());
-
-				sDeadTextureList[type][format].push_back(textures[i]);
-			}	
-		}
+		glDeleteTextures(numTextures, textures);
 	}
-			break;
-		}
-	}
-	
-	/*if (immediate)
-	{
-		LLImageGL::deleteDeadTextures();
-	}*/
 }
 
 // static
@@ -1300,11 +1227,11 @@ BOOL LLImageGL::createGLTexture()
 
 	if(mTexName)
 	{
-		LLImageGL::deleteTextures(mBindTarget, mFormatInternal, mMipLevels, 1, (reinterpret_cast<GLuint*>(&mTexName))) ;
+		LLImageGL::deleteTextures(1, (reinterpret_cast<GLuint*>(&mTexName))) ;
 	}
 	
 
-	LLImageGL::generateTextures(mBindTarget, mFormatInternal, 1, &mTexName);
+	LLImageGL::generateTextures(1, &mTexName);
 	stop_glerror();
 	if (!mTexName)
 	{
@@ -1419,7 +1346,7 @@ BOOL LLImageGL::createGLTexture(S32 discard_level, const U8* data_in, BOOL data_
 	}
 	else
 	{
-		LLImageGL::generateTextures(mBindTarget, mFormatInternal, 1, &mTexName);
+		LLImageGL::generateTextures(1, &mTexName);
 		stop_glerror();
 		{
 			llverify(gGL.getTexUnit(0)->bind(this));
@@ -1464,7 +1391,7 @@ BOOL LLImageGL::createGLTexture(S32 discard_level, const U8* data_in, BOOL data_
 	{
 		sGlobalTextureMemoryInBytes -= mTextureMemory;
 
-		LLImageGL::deleteTextures(mBindTarget, mFormatInternal, mMipLevels, 1, &old_name);
+		LLImageGL::deleteTextures(1, &old_name);
 
 		stop_glerror();
 	}
@@ -1593,30 +1520,6 @@ void LLImageGL::deleteDeadTextures()
 {
 	bool reset = false;
 
-	/*while (!sDeadTextureList.empty())
-	{
-		GLuint tex = sDeadTextureList.front();
-		sDeadTextureList.pop_front();
-		for (int i = 0; i < gGLManager.mNumTextureImageUnits; i++)
-		{
-			LLTexUnit* tex_unit = gGL.getTexUnit(i);
-
-			if (tex_unit && tex_unit->getCurrTexture() == tex)
-			{
-				tex_unit->unbind(tex_unit->getCurrType());
-				stop_glerror();
-
-				if (i > 0)
-				{
-					reset = true;
-				}
-			}
-		}
-		
-		glDeleteTextures(1, &tex);
-		stop_glerror();
-	}*/
-
 	if (reset)
 	{
 		gGL.getTexUnit(0)->activate();
@@ -1633,7 +1536,7 @@ void LLImageGL::destroyGLTexture()
 			mTextureMemory = 0;
 		}
 		
-		LLImageGL::deleteTextures(mBindTarget,  mFormatInternal, mMipLevels, 1, &mTexName);			
+		LLImageGL::deleteTextures(1, &mTexName);			
 		mCurrentDiscardLevel = -1 ; //invalidate mCurrentDiscardLevel.
 		mTexName = 0;		
 		mGLTextureCreated = FALSE ;
diff --git a/indra/llrender/llimagegl.h b/indra/llrender/llimagegl.h
index 57a052b258..0c62dd0d33 100755
--- a/indra/llrender/llimagegl.h
+++ b/indra/llrender/llimagegl.h
@@ -45,16 +45,9 @@ class LLImageGL : public LLRefCount
 {
 	friend class LLTexUnit;
 public:
-	static U32 sCurTexName;
-
-	//previously used but now available texture names
-	// sDeadTextureList[<usage>][<internal format>]
-	typedef std::map<U32, std::list<U32> > dead_texturelist_t;
-	static dead_texturelist_t sDeadTextureList[LLTexUnit::TT_NONE];
-
 	// These 2 functions replace glGenTextures() and glDeleteTextures()
-	static void generateTextures(LLTexUnit::eTextureType type, U32 format, S32 numTextures, U32 *textures);
-	static void deleteTextures(LLTexUnit::eTextureType type, U32 format, S32 mip_levels, S32 numTextures, U32 *textures, bool immediate = false);
+	static void generateTextures(S32 numTextures, U32 *textures);
+	static void deleteTextures(S32 numTextures, U32 *textures);
 	static void deleteDeadTextures();
 
 	// Size calculation
diff --git a/indra/llrender/llrendertarget.cpp b/indra/llrender/llrendertarget.cpp
index 353e61105a..b82b370d6e 100755
--- a/indra/llrender/llrendertarget.cpp
+++ b/indra/llrender/llrendertarget.cpp
@@ -194,7 +194,7 @@ bool LLRenderTarget::addColorAttachment(U32 color_fmt)
 	}
 
 	U32 tex;
-	LLImageGL::generateTextures(mUsage, color_fmt, 1, &tex);
+	LLImageGL::generateTextures(1, &tex);
 	gGL.getTexUnit(0)->bindManual(mUsage, tex);
 
 	stop_glerror();
@@ -280,7 +280,7 @@ bool LLRenderTarget::allocateDepth()
 	}
 	else
 	{
-		LLImageGL::generateTextures(mUsage, GL_DEPTH_COMPONENT24, 1, &mDepth);
+		LLImageGL::generateTextures(1, &mDepth);
 		gGL.getTexUnit(0)->bindManual(mUsage, mDepth);
 		
 		U32 internal_type = LLTexUnit::getInternalType(mUsage);
@@ -357,7 +357,7 @@ void LLRenderTarget::release()
 		}
 		else
 		{
-			LLImageGL::deleteTextures(mUsage, 0, 0, 1, &mDepth, true);
+			LLImageGL::deleteTextures(1, &mDepth);
 			stop_glerror();
 		}
 		mDepth = 0;
@@ -389,7 +389,7 @@ void LLRenderTarget::release()
 	if (mTex.size() > 0)
 	{
 		sBytesAllocated -= mResX*mResY*4*mTex.size();
-		LLImageGL::deleteTextures(mUsage, mInternalFormat[0], 0, mTex.size(), &mTex[0], true);
+		LLImageGL::deleteTextures(mTex.size(), &mTex[0]);
 		mTex.clear();
 		mInternalFormat.clear();
 	}
diff --git a/indra/llrender/llvertexbuffer.cpp b/indra/llrender/llvertexbuffer.cpp
index f168b3af14..e6f20cd40e 100755
--- a/indra/llrender/llvertexbuffer.cpp
+++ b/indra/llrender/llvertexbuffer.cpp
@@ -91,7 +91,6 @@ LLVBOPool LLVertexBuffer::sDynamicIBOPool(GL_DYNAMIC_DRAW_ARB, GL_ELEMENT_ARRAY_
 
 U32 LLVBOPool::sBytesPooled = 0;
 U32 LLVBOPool::sIndexBytesPooled = 0;
-U32 LLVBOPool::sCurGLName = 1;
 
 std::list<U32> LLVertexBuffer::sAvailableVAOName;
 U32 LLVertexBuffer::sCurVAOName = 1;
@@ -125,16 +124,8 @@ U32 LLVBOPool::genBuffer()
 {
 	U32 ret = 0;
 
-	if (mGLNamePool.empty())
-	{
-		ret = sCurGLName++;
-	}
-	else
-	{
-		ret = mGLNamePool.front();
-		mGLNamePool.pop_front();
-	}
-
+	glGenBuffersARB(1, &ret);
+	
 	return ret;
 }
 
@@ -146,12 +137,9 @@ void LLVBOPool::deleteBuffer(U32 name)
 
 		glBindBufferARB(mType, name);
 		glBufferDataARB(mType, 0, NULL, mUsage);
-
-		llassert(std::find(mGLNamePool.begin(), mGLNamePool.end(), name) == mGLNamePool.end());
-
-		mGLNamePool.push_back(name);
-
 		glBindBufferARB(mType, 0);
+
+		glDeleteBuffersARB(1, &name);
 	}
 }
 
@@ -1333,7 +1321,7 @@ void LLVertexBuffer::allocateBuffer(S32 nverts, S32 nindices, bool create)
 		//actually allocate space for the vertex buffer if using VBO mapping
 		flush();
 
-		if (gGLManager.mHasVertexArrayObject && useVBOs() && (LLRender::sGLCoreProfile || sUseVAO))
+		if (gGLManager.mHasVertexArrayObject && useVBOs() && sUseVAO)
 		{
 #if GL_ARB_vertex_array_object
 			mGLArray = getVAOName();
diff --git a/indra/llrender/llvertexbuffer.h b/indra/llrender/llvertexbuffer.h
index de58207c23..619a0cec46 100755
--- a/indra/llrender/llvertexbuffer.h
+++ b/indra/llrender/llvertexbuffer.h
@@ -57,8 +57,6 @@ public:
 	static U32 sBytesPooled;
 	static U32 sIndexBytesPooled;
 	
-	static U32 sCurGLName;
-
 	LLVBOPool(U32 vboUsage, U32 vboType);
 		
 	const U32 mUsage;
@@ -86,8 +84,6 @@ public:
 		volatile U8* mClientData;
 	};
 
-	std::list<U32> mGLNamePool;
-
 	typedef std::list<Record> record_list_t;
 	std::vector<record_list_t> mFreeList;
 	std::vector<U32> mMissCount;