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/**
* @file llgl.cpp
* @brief LLGL implementation
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* Copyright (c) 2001-2009, 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
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*
* 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.
* $/LicenseInfo$
*/
// This file sets some global GL parameters, and implements some
// useful functions for GL operations.
#define GLH_EXT_SINGLE_FILE
#include "linden_common.h"
#include "boost/tokenizer.hpp"
#include "llsys.h"
#include "llgl.h"
#include "llrender.h"
#include "llerror.h"
#include "llquaternion.h"
#include "llmath.h"
#include "m4math.h"
#include "llstring.h"
#include "llglheaders.h"
#ifdef _DEBUG
//#define GL_STATE_VERIFY
#endif
BOOL gDebugGL = FALSE;
BOOL gClothRipple = FALSE;
BOOL gNoRender = FALSE;
LLMatrix4 gGLObliqueProjectionInverse;
LLGLNamePool::pool_list_t LLGLNamePool::sInstances;
#if (LL_WINDOWS || LL_LINUX || LL_SOLARIS) && !LL_MESA_HEADLESS
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// ATI prototypes
// vertex blending prototypes
PFNGLWEIGHTPOINTERARBPROC glWeightPointerARB = NULL;
PFNGLVERTEXBLENDARBPROC glVertexBlendARB = NULL;
PFNGLWEIGHTFVARBPROC glWeightfvARB = NULL;
// Vertex buffer object prototypes
PFNGLBINDBUFFERARBPROC glBindBufferARB = NULL;
PFNGLDELETEBUFFERSARBPROC glDeleteBuffersARB = NULL;
PFNGLGENBUFFERSARBPROC glGenBuffersARB = NULL;
PFNGLISBUFFERARBPROC glIsBufferARB = NULL;
PFNGLBUFFERDATAARBPROC glBufferDataARB = NULL;
PFNGLBUFFERSUBDATAARBPROC glBufferSubDataARB = NULL;
PFNGLGETBUFFERSUBDATAARBPROC glGetBufferSubDataARB = NULL;
PFNGLMAPBUFFERARBPROC glMapBufferARB = NULL;
PFNGLUNMAPBUFFERARBPROC glUnmapBufferARB = NULL;
PFNGLGETBUFFERPARAMETERIVARBPROC glGetBufferParameterivARB = NULL;
PFNGLGETBUFFERPOINTERVARBPROC glGetBufferPointervARB = NULL;
// vertex object prototypes
PFNGLNEWOBJECTBUFFERATIPROC glNewObjectBufferATI = NULL;
PFNGLISOBJECTBUFFERATIPROC glIsObjectBufferATI = NULL;
PFNGLUPDATEOBJECTBUFFERATIPROC glUpdateObjectBufferATI = NULL;
PFNGLGETOBJECTBUFFERFVATIPROC glGetObjectBufferfvATI = NULL;
PFNGLGETOBJECTBUFFERIVATIPROC glGetObjectBufferivATI = NULL;
PFNGLFREEOBJECTBUFFERATIPROC glFreeObjectBufferATI = NULL;
PFNGLARRAYOBJECTATIPROC glArrayObjectATI = NULL;
PFNGLVERTEXATTRIBARRAYOBJECTATIPROC glVertexAttribArrayObjectATI = NULL;
PFNGLGETARRAYOBJECTFVATIPROC glGetArrayObjectfvATI = NULL;
PFNGLGETARRAYOBJECTIVATIPROC glGetArrayObjectivATI = NULL;
PFNGLVARIANTARRAYOBJECTATIPROC glVariantObjectArrayATI = NULL;
PFNGLGETVARIANTARRAYOBJECTFVATIPROC glGetVariantArrayObjectfvATI = NULL;
PFNGLGETVARIANTARRAYOBJECTIVATIPROC glGetVariantArrayObjectivATI = NULL;
// GL_ARB_occlusion_query
PFNGLGENQUERIESARBPROC glGenQueriesARB = NULL;
PFNGLDELETEQUERIESARBPROC glDeleteQueriesARB = NULL;
PFNGLISQUERYARBPROC glIsQueryARB = NULL;
PFNGLBEGINQUERYARBPROC glBeginQueryARB = NULL;
PFNGLENDQUERYARBPROC glEndQueryARB = NULL;
PFNGLGETQUERYIVARBPROC glGetQueryivARB = NULL;
PFNGLGETQUERYOBJECTIVARBPROC glGetQueryObjectivARB = NULL;
PFNGLGETQUERYOBJECTUIVARBPROC glGetQueryObjectuivARB = NULL;
// GL_ARB_point_parameters
PFNGLPOINTPARAMETERFARBPROC glPointParameterfARB = NULL;
PFNGLPOINTPARAMETERFVARBPROC glPointParameterfvARB = NULL;
// GL_EXT_framebuffer_object
PFNGLISRENDERBUFFEREXTPROC glIsRenderbufferEXT = NULL;
PFNGLBINDRENDERBUFFEREXTPROC glBindRenderbufferEXT = NULL;
PFNGLDELETERENDERBUFFERSEXTPROC glDeleteRenderbuffersEXT = NULL;
PFNGLGENRENDERBUFFERSEXTPROC glGenRenderbuffersEXT = NULL;
PFNGLRENDERBUFFERSTORAGEEXTPROC glRenderbufferStorageEXT = NULL;
PFNGLGETRENDERBUFFERPARAMETERIVEXTPROC glGetRenderbufferParameterivEXT = NULL;
PFNGLISFRAMEBUFFEREXTPROC glIsFramebufferEXT = NULL;
PFNGLBINDFRAMEBUFFEREXTPROC glBindFramebufferEXT = NULL;
PFNGLDELETEFRAMEBUFFERSEXTPROC glDeleteFramebuffersEXT = NULL;
PFNGLGENFRAMEBUFFERSEXTPROC glGenFramebuffersEXT = NULL;
PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC glCheckFramebufferStatusEXT = NULL;
PFNGLFRAMEBUFFERTEXTURE1DEXTPROC glFramebufferTexture1DEXT = NULL;
PFNGLFRAMEBUFFERTEXTURE2DEXTPROC glFramebufferTexture2DEXT = NULL;
PFNGLFRAMEBUFFERTEXTURE3DEXTPROC glFramebufferTexture3DEXT = NULL;
PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC glFramebufferRenderbufferEXT = NULL;
PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVEXTPROC glGetFramebufferAttachmentParameterivEXT = NULL;
PFNGLGENERATEMIPMAPEXTPROC glGenerateMipmapEXT = NULL;
//shader object prototypes
PFNGLDELETEOBJECTARBPROC glDeleteObjectARB = NULL;
PFNGLGETHANDLEARBPROC glGetHandleARB = NULL;
PFNGLDETACHOBJECTARBPROC glDetachObjectARB = NULL;
PFNGLCREATESHADEROBJECTARBPROC glCreateShaderObjectARB = NULL;
PFNGLSHADERSOURCEARBPROC glShaderSourceARB = NULL;
PFNGLCOMPILESHADERARBPROC glCompileShaderARB = NULL;
PFNGLCREATEPROGRAMOBJECTARBPROC glCreateProgramObjectARB = NULL;
PFNGLATTACHOBJECTARBPROC glAttachObjectARB = NULL;
PFNGLLINKPROGRAMARBPROC glLinkProgramARB = NULL;
PFNGLUSEPROGRAMOBJECTARBPROC glUseProgramObjectARB = NULL;
PFNGLVALIDATEPROGRAMARBPROC glValidateProgramARB = NULL;
PFNGLUNIFORM1FARBPROC glUniform1fARB = NULL;
PFNGLUNIFORM2FARBPROC glUniform2fARB = NULL;
PFNGLUNIFORM3FARBPROC glUniform3fARB = NULL;
PFNGLUNIFORM4FARBPROC glUniform4fARB = NULL;
PFNGLUNIFORM1IARBPROC glUniform1iARB = NULL;
PFNGLUNIFORM2IARBPROC glUniform2iARB = NULL;
PFNGLUNIFORM3IARBPROC glUniform3iARB = NULL;
PFNGLUNIFORM4IARBPROC glUniform4iARB = NULL;
PFNGLUNIFORM1FVARBPROC glUniform1fvARB = NULL;
PFNGLUNIFORM2FVARBPROC glUniform2fvARB = NULL;
PFNGLUNIFORM3FVARBPROC glUniform3fvARB = NULL;
PFNGLUNIFORM4FVARBPROC glUniform4fvARB = NULL;
PFNGLUNIFORM1IVARBPROC glUniform1ivARB = NULL;
PFNGLUNIFORM2IVARBPROC glUniform2ivARB = NULL;
PFNGLUNIFORM3IVARBPROC glUniform3ivARB = NULL;
PFNGLUNIFORM4IVARBPROC glUniform4ivARB = NULL;
PFNGLUNIFORMMATRIX2FVARBPROC glUniformMatrix2fvARB = NULL;
PFNGLUNIFORMMATRIX3FVARBPROC glUniformMatrix3fvARB = NULL;
PFNGLUNIFORMMATRIX4FVARBPROC glUniformMatrix4fvARB = NULL;
PFNGLGETOBJECTPARAMETERFVARBPROC glGetObjectParameterfvARB = NULL;
PFNGLGETOBJECTPARAMETERIVARBPROC glGetObjectParameterivARB = NULL;
PFNGLGETINFOLOGARBPROC glGetInfoLogARB = NULL;
PFNGLGETATTACHEDOBJECTSARBPROC glGetAttachedObjectsARB = NULL;
PFNGLGETUNIFORMLOCATIONARBPROC glGetUniformLocationARB = NULL;
PFNGLGETACTIVEUNIFORMARBPROC glGetActiveUniformARB = NULL;
PFNGLGETUNIFORMFVARBPROC glGetUniformfvARB = NULL;
PFNGLGETUNIFORMIVARBPROC glGetUniformivARB = NULL;
PFNGLGETSHADERSOURCEARBPROC glGetShaderSourceARB = NULL;
// vertex shader prototypes
#if LL_LINUX || LL_SOLARIS
PFNGLVERTEXATTRIB1DARBPROC glVertexAttrib1dARB = NULL;
PFNGLVERTEXATTRIB1DVARBPROC glVertexAttrib1dvARB = NULL;
PFNGLVERTEXATTRIB1FARBPROC glVertexAttrib1fARB = NULL;
PFNGLVERTEXATTRIB1FVARBPROC glVertexAttrib1fvARB = NULL;
PFNGLVERTEXATTRIB1SARBPROC glVertexAttrib1sARB = NULL;
PFNGLVERTEXATTRIB1SVARBPROC glVertexAttrib1svARB = NULL;
PFNGLVERTEXATTRIB2DARBPROC glVertexAttrib2dARB = NULL;
PFNGLVERTEXATTRIB2DVARBPROC glVertexAttrib2dvARB = NULL;
PFNGLVERTEXATTRIB2FARBPROC glVertexAttrib2fARB = NULL;
PFNGLVERTEXATTRIB2FVARBPROC glVertexAttrib2fvARB = NULL;
PFNGLVERTEXATTRIB2SARBPROC glVertexAttrib2sARB = NULL;
PFNGLVERTEXATTRIB2SVARBPROC glVertexAttrib2svARB = NULL;
PFNGLVERTEXATTRIB3DARBPROC glVertexAttrib3dARB = NULL;
PFNGLVERTEXATTRIB3DVARBPROC glVertexAttrib3dvARB = NULL;
PFNGLVERTEXATTRIB3FARBPROC glVertexAttrib3fARB = NULL;
PFNGLVERTEXATTRIB3FVARBPROC glVertexAttrib3fvARB = NULL;
PFNGLVERTEXATTRIB3SARBPROC glVertexAttrib3sARB = NULL;
PFNGLVERTEXATTRIB3SVARBPROC glVertexAttrib3svARB = NULL;
#endif // LL_LINUX || LL_SOLARIS
PFNGLVERTEXATTRIB4NBVARBPROC glVertexAttrib4nbvARB = NULL;
PFNGLVERTEXATTRIB4NIVARBPROC glVertexAttrib4nivARB = NULL;
PFNGLVERTEXATTRIB4NSVARBPROC glVertexAttrib4nsvARB = NULL;
PFNGLVERTEXATTRIB4NUBARBPROC glVertexAttrib4nubARB = NULL;
PFNGLVERTEXATTRIB4NUBVARBPROC glVertexAttrib4nubvARB = NULL;
PFNGLVERTEXATTRIB4NUIVARBPROC glVertexAttrib4nuivARB = NULL;
PFNGLVERTEXATTRIB4NUSVARBPROC glVertexAttrib4nusvARB = NULL;
#if LL_LINUX || LL_SOLARIS
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PFNGLVERTEXATTRIB4BVARBPROC glVertexAttrib4bvARB = NULL;
PFNGLVERTEXATTRIB4DARBPROC glVertexAttrib4dARB = NULL;
PFNGLVERTEXATTRIB4DVARBPROC glVertexAttrib4dvARB = NULL;
PFNGLVERTEXATTRIB4FARBPROC glVertexAttrib4fARB = NULL;
PFNGLVERTEXATTRIB4FVARBPROC glVertexAttrib4fvARB = NULL;
PFNGLVERTEXATTRIB4IVARBPROC glVertexAttrib4ivARB = NULL;
PFNGLVERTEXATTRIB4SARBPROC glVertexAttrib4sARB = NULL;
PFNGLVERTEXATTRIB4SVARBPROC glVertexAttrib4svARB = NULL;
PFNGLVERTEXATTRIB4UBVARBPROC glVertexAttrib4ubvARB = NULL;
PFNGLVERTEXATTRIB4UIVARBPROC glVertexAttrib4uivARB = NULL;
PFNGLVERTEXATTRIB4USVARBPROC glVertexAttrib4usvARB = NULL;
PFNGLVERTEXATTRIBPOINTERARBPROC glVertexAttribPointerARB = NULL;
PFNGLENABLEVERTEXATTRIBARRAYARBPROC glEnableVertexAttribArrayARB = NULL;
PFNGLDISABLEVERTEXATTRIBARRAYARBPROC glDisableVertexAttribArrayARB = NULL;
PFNGLPROGRAMSTRINGARBPROC glProgramStringARB = NULL;
PFNGLBINDPROGRAMARBPROC glBindProgramARB = NULL;
PFNGLDELETEPROGRAMSARBPROC glDeleteProgramsARB = NULL;
PFNGLGENPROGRAMSARBPROC glGenProgramsARB = NULL;
PFNGLPROGRAMENVPARAMETER4DARBPROC glProgramEnvParameter4dARB = NULL;
PFNGLPROGRAMENVPARAMETER4DVARBPROC glProgramEnvParameter4dvARB = NULL;
PFNGLPROGRAMENVPARAMETER4FARBPROC glProgramEnvParameter4fARB = NULL;
PFNGLPROGRAMENVPARAMETER4FVARBPROC glProgramEnvParameter4fvARB = NULL;
PFNGLPROGRAMLOCALPARAMETER4DARBPROC glProgramLocalParameter4dARB = NULL;
PFNGLPROGRAMLOCALPARAMETER4DVARBPROC glProgramLocalParameter4dvARB = NULL;
PFNGLPROGRAMLOCALPARAMETER4FARBPROC glProgramLocalParameter4fARB = NULL;
PFNGLPROGRAMLOCALPARAMETER4FVARBPROC glProgramLocalParameter4fvARB = NULL;
PFNGLGETPROGRAMENVPARAMETERDVARBPROC glGetProgramEnvParameterdvARB = NULL;
PFNGLGETPROGRAMENVPARAMETERFVARBPROC glGetProgramEnvParameterfvARB = NULL;
PFNGLGETPROGRAMLOCALPARAMETERDVARBPROC glGetProgramLocalParameterdvARB = NULL;
PFNGLGETPROGRAMLOCALPARAMETERFVARBPROC glGetProgramLocalParameterfvARB = NULL;
PFNGLGETPROGRAMIVARBPROC glGetProgramivARB = NULL;
PFNGLGETPROGRAMSTRINGARBPROC glGetProgramStringARB = NULL;
PFNGLGETVERTEXATTRIBDVARBPROC glGetVertexAttribdvARB = NULL;
PFNGLGETVERTEXATTRIBFVARBPROC glGetVertexAttribfvARB = NULL;
PFNGLGETVERTEXATTRIBIVARBPROC glGetVertexAttribivARB = NULL;
PFNGLGETVERTEXATTRIBPOINTERVARBPROC glGetVertexAttribPointervARB = NULL;
PFNGLISPROGRAMARBPROC glIsProgramARB = NULL;
#endif // LL_LINUX || LL_SOLARIS
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PFNGLBINDATTRIBLOCATIONARBPROC glBindAttribLocationARB = NULL;
PFNGLGETACTIVEATTRIBARBPROC glGetActiveAttribARB = NULL;
PFNGLGETATTRIBLOCATIONARBPROC glGetAttribLocationARB = NULL;
#if LL_WINDOWS
PFNWGLSWAPINTERVALEXTPROC wglSwapIntervalEXT = NULL;
#endif
#endif
LLGLManager gGLManager;
LLGLManager::LLGLManager() :
mInited(FALSE),
mIsDisabled(FALSE),
mHasMultitexture(FALSE),
mNumTextureUnits(1),
mHasMipMapGeneration(FALSE),
mHasCompressedTextures(FALSE),
mHasFramebufferObject(FALSE),
mHasVertexBufferObject(FALSE),
mHasPBuffer(FALSE),
mHasShaderObjects(FALSE),
mHasVertexShader(FALSE),
mHasFragmentShader(FALSE),
mHasOcclusionQuery(FALSE),
mHasPointParameters(FALSE),
mHasAnisotropic(FALSE),
mHasARBEnvCombine(FALSE),
mHasCubeMap(FALSE),
mIsATI(FALSE),
mIsNVIDIA(FALSE),
mIsIntel(FALSE),
mIsGF2or4MX(FALSE),
mIsGF3(FALSE),
mIsGFFX(FALSE),
mATIOffsetVerticalLines(FALSE),
mATIOldDriver(FALSE),
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mHasRequirements(TRUE),
mHasSeparateSpecularColor(FALSE),
mDriverVersionMajor(1),
mDriverVersionMinor(0),
mDriverVersionRelease(0),
mGLVersion(1.0f),
mVRAM(0),
mGLMaxVertexRange(0),
mGLMaxIndexRange(0)
{
}
//---------------------------------------------------------------------
// Global initialization for GL
//---------------------------------------------------------------------
void LLGLManager::initWGL()
{
mHasPBuffer = FALSE;
#if LL_WINDOWS && !LL_MESA_HEADLESS
if (!glh_init_extensions("WGL_ARB_pixel_format"))
{
LL_WARNS("RenderInit") << "No ARB pixel format extensions" << LL_ENDL;
}
if (ExtensionExists("WGL_EXT_swap_control", gGLHExts.mSysExts))
{
GLH_EXT_NAME(wglSwapIntervalEXT) = (PFNWGLSWAPINTERVALEXTPROC)GLH_EXT_GET_PROC_ADDRESS("wglSwapIntervalEXT");
}
if( !glh_init_extensions("WGL_ARB_pbuffer") )
{
LL_WARNS("RenderInit") << "No ARB WGL PBuffer extensions" << LL_ENDL;
}
if( !glh_init_extensions("WGL_ARB_render_texture") )
{
LL_WARNS("RenderInit") << "No ARB WGL render texture extensions" << LL_ENDL;
}
mHasPBuffer = ExtensionExists("WGL_ARB_pbuffer", gGLHExts.mSysExts) &&
ExtensionExists("WGL_ARB_render_texture", gGLHExts.mSysExts) &&
ExtensionExists("WGL_ARB_pixel_format", gGLHExts.mSysExts);
#endif
}
// return false if unable (or unwilling due to old drivers) to init GL
bool LLGLManager::initGL()
{
if (mInited)
{
LL_ERRS("RenderInit") << "Calling init on LLGLManager after already initialized!" << LL_ENDL;
}
GLint alpha_bits;
glGetIntegerv( GL_ALPHA_BITS, &alpha_bits );
if( 8 != alpha_bits )
{
LL_WARNS("RenderInit") << "Frame buffer has less than 8 bits of alpha. Avatar texture compositing will fail." << LL_ENDL;
}
// Extract video card strings and convert to upper case to
// work around driver-to-driver variation in capitalization.
mGLVendor = std::string((const char *)glGetString(GL_VENDOR));
LLStringUtil::toUpper(mGLVendor);
mGLRenderer = std::string((const char *)glGetString(GL_RENDERER));
LLStringUtil::toUpper(mGLRenderer);
parse_gl_version( &mDriverVersionMajor,
&mDriverVersionMinor,
&mDriverVersionRelease,
&mDriverVersionVendorString );
mGLVersion = mDriverVersionMajor + mDriverVersionMinor * .1f;
// Trailing space necessary to keep "nVidia Corpor_ati_on" cards
// from being recognized as ATI.
if (mGLVendor.substr(0,4) == "ATI ")
{
mGLVendorShort = "ATI";
BOOL mobile = FALSE;
if (mGLRenderer.find("MOBILITY") != std::string::npos)
{
mobile = TRUE;
}
mIsATI = TRUE;
#if LL_WINDOWS && !LL_MESA_HEADLESS
if (mDriverVersionRelease < 3842)
{
mATIOffsetVerticalLines = TRUE;
}
#endif // LL_WINDOWS
#if (LL_WINDOWS || LL_LINUX) && !LL_MESA_HEADLESS
// release 7277 is a point at which we verify that ATI OpenGL
// drivers get pretty stable with SL, ~Catalyst 8.2,
// for both Win32 and Linux.
if (mDriverVersionRelease < 7277 &&
mDriverVersionRelease != 0) // 0 == Undetectable driver version - these get to pretend to be new ATI drivers, though that decision may be revisited.
{
mATIOldDriver = TRUE;
}
#endif // (LL_WINDOWS || LL_LINUX) && !LL_MESA_HEADLESS
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}
else if (mGLVendor.find("NVIDIA ") != std::string::npos)
{
mGLVendorShort = "NVIDIA";
mIsNVIDIA = TRUE;
if ( mGLRenderer.find("GEFORCE4 MX") != std::string::npos
|| mGLRenderer.find("GEFORCE2") != std::string::npos
|| mGLRenderer.find("GEFORCE 2") != std::string::npos
|| mGLRenderer.find("GEFORCE4 460 GO") != std::string::npos
|| mGLRenderer.find("GEFORCE4 440 GO") != std::string::npos
|| mGLRenderer.find("GEFORCE4 420 GO") != std::string::npos)
{
mIsGF2or4MX = TRUE;
}
else if (mGLRenderer.find("GEFORCE FX") != std::string::npos
|| mGLRenderer.find("QUADRO FX") != std::string::npos
|| mGLRenderer.find("NV34") != std::string::npos)
{
mIsGFFX = TRUE;
}
else if(mGLRenderer.find("GEFORCE3") != std::string::npos)
{
mIsGF3 = TRUE;
}
}
else if (mGLVendor.find("INTEL") != std::string::npos
#if LL_LINUX
// The Mesa-based drivers put this in the Renderer string,
// not the Vendor string.
|| mGLRenderer.find("INTEL") != std::string::npos
#endif //LL_LINUX
)
{
mGLVendorShort = "INTEL";
mIsIntel = TRUE;
}
else
{
mGLVendorShort = "MISC";
}
// This is called here because it depends on the setting of mIsGF2or4MX, and sets up mHasMultitexture.
initExtensions();
if (mHasMultitexture)
{
GLint num_tex_units;
glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &num_tex_units);
mNumTextureUnits = llmin(num_tex_units, (GLint)MAX_GL_TEXTURE_UNITS);
if (mIsIntel)
{
mNumTextureUnits = llmin(mNumTextureUnits, 2);
}
}
else
{
mHasRequirements = FALSE;
// We don't support cards that don't support the GL_ARB_multitexture extension
LL_WARNS("RenderInit") << "GL Drivers do not support GL_ARB_multitexture" << LL_ENDL;
return false;
}
initGLStates();
return true;
}
void LLGLManager::getGLInfo(LLSD& info)
{
info["GLInfo"]["GLVendor"] = std::string((const char *)glGetString(GL_VENDOR));
info["GLInfo"]["GLRenderer"] = std::string((const char *)glGetString(GL_RENDERER));
info["GLInfo"]["GLVersion"] = std::string((const char *)glGetString(GL_VERSION));
#if !LL_MESA_HEADLESS
std::string all_exts = ll_safe_string((const char *)gGLHExts.mSysExts);
boost::char_separator<char> sep(" ");
boost::tokenizer<boost::char_separator<char> > tok(all_exts, sep);
for(boost::tokenizer<boost::char_separator<char> >::iterator i = tok.begin(); i != tok.end(); ++i)
{
info["GLInfo"]["GLExtensions"].append(*i);
}
#endif
}
std::string LLGLManager::getGLInfoString()
{
std::string info_str;
std::string all_exts, line;
info_str += std::string("GL_VENDOR ") + ll_safe_string((const char *)glGetString(GL_VENDOR)) + std::string("\n");
info_str += std::string("GL_RENDERER ") + ll_safe_string((const char *)glGetString(GL_RENDERER)) + std::string("\n");
info_str += std::string("GL_VERSION ") + ll_safe_string((const char *)glGetString(GL_VERSION)) + std::string("\n");
#if !LL_MESA_HEADLESS
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all_exts = (const char *)gGLHExts.mSysExts;
LLStringUtil::replaceChar(all_exts, ' ', '\n');
info_str += std::string("GL_EXTENSIONS:\n") + all_exts + std::string("\n");
#endif
return info_str;
}
void LLGLManager::printGLInfoString()
{
std::string info_str;
std::string all_exts, line;
LL_INFOS("RenderInit") << "GL_VENDOR: " << ((const char *)glGetString(GL_VENDOR)) << LL_ENDL;
LL_INFOS("RenderInit") << "GL_RENDERER: " << ((const char *)glGetString(GL_RENDERER)) << LL_ENDL;
LL_INFOS("RenderInit") << "GL_VERSION: " << ((const char *)glGetString(GL_VERSION)) << LL_ENDL;
#if !LL_MESA_HEADLESS
all_exts = std::string(gGLHExts.mSysExts);
LLStringUtil::replaceChar(all_exts, ' ', '\n');
LL_DEBUGS("RenderInit") << "GL_EXTENSIONS:\n" << all_exts << LL_ENDL;
#endif
}
std::string LLGLManager::getRawGLString()
{
std::string gl_string;
gl_string = ll_safe_string((char*)glGetString(GL_VENDOR)) + " " + ll_safe_string((char*)glGetString(GL_RENDERER));
return gl_string;
}
void LLGLManager::shutdownGL()
{
if (mInited)
{
glFinish();
stop_glerror();
mInited = FALSE;
}
}
// these are used to turn software blending on. They appear in the Debug/Avatar menu
// presence of vertex skinning/blending or vertex programs will set these to FALSE by default.
extern LLCPUInfo gSysCPU;
void LLGLManager::initExtensions()
{
#if LL_MESA_HEADLESS
# if GL_ARB_multitexture
mHasMultitexture = TRUE;
# else
mHasMultitexture = FALSE;
# endif
# if GL_ARB_texture_env_combine
mHasARBEnvCombine = TRUE;
# else
mHasARBEnvCombine = FALSE;
# endif
# if GL_ARB_texture_compression
mHasCompressedTextures = TRUE;
# else
mHasCompressedTextures = FALSE;
# endif
# if GL_ARB_vertex_buffer_object
mHasVertexBufferObject = TRUE;
# else
mHasVertexBufferObject = FALSE;
# endif
# if GL_EXT_framebuffer_object
mHasFramebufferObject = TRUE;
# else
mHasFramebufferObject = FALSE;
# endif
mHasMipMapGeneration = FALSE;
mHasSeparateSpecularColor = FALSE;
mHasAnisotropic = FALSE;
mHasCubeMap = FALSE;
mHasOcclusionQuery = FALSE;
mHasPointParameters = FALSE;
mHasShaderObjects = FALSE;
mHasVertexShader = FALSE;
mHasFragmentShader = FALSE;
#else // LL_MESA_HEADLESS
mHasMultitexture = glh_init_extensions("GL_ARB_multitexture");
mHasMipMapGeneration = glh_init_extensions("GL_SGIS_generate_mipmap");
mHasSeparateSpecularColor = glh_init_extensions("GL_EXT_separate_specular_color");
mHasAnisotropic = glh_init_extensions("GL_EXT_texture_filter_anisotropic");
glh_init_extensions("GL_ARB_texture_cube_map");
mHasCubeMap = ExtensionExists("GL_ARB_texture_cube_map", gGLHExts.mSysExts);
mHasARBEnvCombine = ExtensionExists("GL_ARB_texture_env_combine", gGLHExts.mSysExts);
mHasCompressedTextures = glh_init_extensions("GL_ARB_texture_compression");
mHasOcclusionQuery = ExtensionExists("GL_ARB_occlusion_query", gGLHExts.mSysExts);
mHasVertexBufferObject = ExtensionExists("GL_ARB_vertex_buffer_object", gGLHExts.mSysExts);
// mask out FBO support when packed_depth_stencil isn't there 'cause we need it for LLRenderTarget -Brad
mHasFramebufferObject = ExtensionExists("GL_EXT_framebuffer_object", gGLHExts.mSysExts)
&& ExtensionExists("GL_EXT_packed_depth_stencil", gGLHExts.mSysExts);
#if !LL_DARWIN
mHasPointParameters = !mIsATI && ExtensionExists("GL_ARB_point_parameters", gGLHExts.mSysExts);
#endif
mHasShaderObjects = ExtensionExists("GL_ARB_shader_objects", gGLHExts.mSysExts) && ExtensionExists("GL_ARB_shading_language_100", gGLHExts.mSysExts);
mHasVertexShader = ExtensionExists("GL_ARB_vertex_program", gGLHExts.mSysExts) && ExtensionExists("GL_ARB_vertex_shader", gGLHExts.mSysExts)
&& ExtensionExists("GL_ARB_shading_language_100", gGLHExts.mSysExts);
mHasFragmentShader = ExtensionExists("GL_ARB_fragment_shader", gGLHExts.mSysExts) && ExtensionExists("GL_ARB_shading_language_100", gGLHExts.mSysExts);
#endif
#if LL_LINUX || LL_SOLARIS
llinfos << "initExtensions() checking shell variables to adjust features..." << llendl;
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// Our extension support for the Linux Client is very young with some
// potential driver gotchas, so offer a semi-secret way to turn it off.
if (getenv("LL_GL_NOEXT")) /* Flawfinder: ignore */
{
//mHasMultitexture = FALSE; // NEEDED!
mHasARBEnvCombine = FALSE;
mHasCompressedTextures = FALSE;
mHasVertexBufferObject = FALSE;
mHasFramebufferObject = FALSE;
mHasMipMapGeneration = FALSE;
mHasSeparateSpecularColor = FALSE;
mHasAnisotropic = FALSE;
mHasCubeMap = FALSE;
mHasOcclusionQuery = FALSE;
mHasPointParameters = FALSE;
mHasShaderObjects = FALSE;
mHasVertexShader = FALSE;
mHasFragmentShader = FALSE;
LL_WARNS("RenderInit") << "GL extension support DISABLED via LL_GL_NOEXT" << LL_ENDL;
}
else if (getenv("LL_GL_BASICEXT")) /* Flawfinder: ignore */
{
// This switch attempts to turn off all support for exotic
// extensions which I believe correspond to fatal driver
// bug reports. This should be the default until we get a
// proper blacklist/whitelist on Linux.
mHasMipMapGeneration = FALSE;
mHasAnisotropic = FALSE;
//mHasCubeMap = FALSE; // apparently fatal on Intel 915 & similar
//mHasOcclusionQuery = FALSE; // source of many ATI system hangs
mHasShaderObjects = FALSE;
mHasVertexShader = FALSE;
mHasFragmentShader = FALSE;
LL_WARNS("RenderInit") << "GL extension support forced to SIMPLE level via LL_GL_BASICEXT" << LL_ENDL;
}
if (getenv("LL_GL_BLACKLIST")) /* Flawfinder: ignore */
{
// This lets advanced troubleshooters disable specific
// GL extensions to isolate problems with their hardware.
// SL-28126
const char *const blacklist = getenv("LL_GL_BLACKLIST"); /* Flawfinder: ignore */
LL_WARNS("RenderInit") << "GL extension support partially disabled via LL_GL_BLACKLIST: " << blacklist << LL_ENDL;
if (strchr(blacklist,'a')) mHasARBEnvCombine = FALSE;
if (strchr(blacklist,'b')) mHasCompressedTextures = FALSE;
if (strchr(blacklist,'c')) mHasVertexBufferObject = FALSE;
if (strchr(blacklist,'d')) mHasMipMapGeneration = FALSE;//S
// if (strchr(blacklist,'f')) mHasNVVertexArrayRange = FALSE;//S
// if (strchr(blacklist,'g')) mHasNVFence = FALSE;//S
if (strchr(blacklist,'h')) mHasSeparateSpecularColor = FALSE;
if (strchr(blacklist,'i')) mHasAnisotropic = FALSE;//S
if (strchr(blacklist,'j')) mHasCubeMap = FALSE;//S
// if (strchr(blacklist,'k')) mHasATIVAO = FALSE;//S
if (strchr(blacklist,'l')) mHasOcclusionQuery = FALSE;
if (strchr(blacklist,'m')) mHasShaderObjects = FALSE;//S
if (strchr(blacklist,'n')) mHasVertexShader = FALSE;//S
if (strchr(blacklist,'o')) mHasFragmentShader = FALSE;//S
if (strchr(blacklist,'p')) mHasPointParameters = FALSE;//S
if (strchr(blacklist,'q')) mHasFramebufferObject = FALSE;//S
}
#endif // LL_LINUX || LL_SOLARIS
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if (!mHasMultitexture)
{
LL_INFOS("RenderInit") << "Couldn't initialize multitexturing" << LL_ENDL;
}
if (!mHasMipMapGeneration)
{
LL_INFOS("RenderInit") << "Couldn't initialize mipmap generation" << LL_ENDL;
}
if (!mHasARBEnvCombine)
{
LL_INFOS("RenderInit") << "Couldn't initialize GL_ARB_texture_env_combine" << LL_ENDL;
}
if (!mHasSeparateSpecularColor)
{
LL_INFOS("RenderInit") << "Couldn't initialize separate specular color" << LL_ENDL;
}
if (!mHasAnisotropic)
{
LL_INFOS("RenderInit") << "Couldn't initialize anisotropic filtering" << LL_ENDL;
}
if (!mHasCompressedTextures)
{
LL_INFOS("RenderInit") << "Couldn't initialize GL_ARB_texture_compression" << LL_ENDL;
}
if (!mHasOcclusionQuery)
{
LL_INFOS("RenderInit") << "Couldn't initialize GL_ARB_occlusion_query" << LL_ENDL;
}
if (!mHasPointParameters)
{
LL_INFOS("RenderInit") << "Couldn't initialize GL_ARB_point_parameters" << LL_ENDL;
}
if (!mHasShaderObjects)
{
LL_INFOS("RenderInit") << "Couldn't initialize GL_ARB_shader_objects" << LL_ENDL;
}
if (!mHasVertexShader)
{
LL_INFOS("RenderInit") << "Couldn't initialize GL_ARB_vertex_shader" << LL_ENDL;
}
if (!mHasFragmentShader)
{
LL_INFOS("RenderInit") << "Couldn't initialize GL_ARB_fragment_shader" << LL_ENDL;
}
// Disable certain things due to known bugs
if (mIsIntel && mHasMipMapGeneration)
{
LL_INFOS("RenderInit") << "Disabling mip-map generation for Intel GPUs" << LL_ENDL;
mHasMipMapGeneration = FALSE;
}
if (mIsATI && mHasMipMapGeneration)
{
LL_INFOS("RenderInit") << "Disabling mip-map generation for ATI GPUs (performance opt)" << LL_ENDL;
mHasMipMapGeneration = FALSE;
}
// Misc
glGetIntegerv(GL_MAX_ELEMENTS_VERTICES, (GLint*) &mGLMaxVertexRange);
glGetIntegerv(GL_MAX_ELEMENTS_INDICES, (GLint*) &mGLMaxIndexRange);
#if (LL_WINDOWS || LL_LINUX || LL_SOLARIS) && !LL_MESA_HEADLESS
LL_DEBUGS("RenderInit") << "GL Probe: Getting symbols" << LL_ENDL;
if (mHasVertexBufferObject)
{
glBindBufferARB = (PFNGLBINDBUFFERARBPROC)GLH_EXT_GET_PROC_ADDRESS("glBindBufferARB");
if (glBindBufferARB)
{
glDeleteBuffersARB = (PFNGLDELETEBUFFERSARBPROC)GLH_EXT_GET_PROC_ADDRESS("glDeleteBuffersARB");
glGenBuffersARB = (PFNGLGENBUFFERSARBPROC)GLH_EXT_GET_PROC_ADDRESS("glGenBuffersARB");
glIsBufferARB = (PFNGLISBUFFERARBPROC)GLH_EXT_GET_PROC_ADDRESS("glIsBufferARB");
glBufferDataARB = (PFNGLBUFFERDATAARBPROC)GLH_EXT_GET_PROC_ADDRESS("glBufferDataARB");
glBufferSubDataARB = (PFNGLBUFFERSUBDATAARBPROC)GLH_EXT_GET_PROC_ADDRESS("glBufferSubDataARB");
glGetBufferSubDataARB = (PFNGLGETBUFFERSUBDATAARBPROC)GLH_EXT_GET_PROC_ADDRESS("glGetBufferSubDataARB");
glMapBufferARB = (PFNGLMAPBUFFERARBPROC)GLH_EXT_GET_PROC_ADDRESS("glMapBufferARB");
glUnmapBufferARB = (PFNGLUNMAPBUFFERARBPROC)GLH_EXT_GET_PROC_ADDRESS("glUnmapBufferARB");
glGetBufferParameterivARB = (PFNGLGETBUFFERPARAMETERIVARBPROC)GLH_EXT_GET_PROC_ADDRESS("glGetBufferParameterivARB");
glGetBufferPointervARB = (PFNGLGETBUFFERPOINTERVARBPROC)GLH_EXT_GET_PROC_ADDRESS("glGetBufferPointervARB");
}
else
{
mHasVertexBufferObject = FALSE;
}
}
if (mHasFramebufferObject)
{
llinfos << "initExtensions() FramebufferObject-related procs..." << llendl;
glIsRenderbufferEXT = (PFNGLISRENDERBUFFEREXTPROC) GLH_EXT_GET_PROC_ADDRESS("glIsRenderbufferEXT");
glBindRenderbufferEXT = (PFNGLBINDRENDERBUFFEREXTPROC) GLH_EXT_GET_PROC_ADDRESS("glBindRenderbufferEXT");
glDeleteRenderbuffersEXT = (PFNGLDELETERENDERBUFFERSEXTPROC) GLH_EXT_GET_PROC_ADDRESS("glDeleteRenderbuffersEXT");
glGenRenderbuffersEXT = (PFNGLGENRENDERBUFFERSEXTPROC) GLH_EXT_GET_PROC_ADDRESS("glGenRenderbuffersEXT");
glRenderbufferStorageEXT = (PFNGLRENDERBUFFERSTORAGEEXTPROC) GLH_EXT_GET_PROC_ADDRESS("glRenderbufferStorageEXT");
glGetRenderbufferParameterivEXT = (PFNGLGETRENDERBUFFERPARAMETERIVEXTPROC) GLH_EXT_GET_PROC_ADDRESS("glGetRenderbufferParameterivEXT");
glIsFramebufferEXT = (PFNGLISFRAMEBUFFEREXTPROC) GLH_EXT_GET_PROC_ADDRESS("glIsFramebufferEXT");
glBindFramebufferEXT = (PFNGLBINDFRAMEBUFFEREXTPROC) GLH_EXT_GET_PROC_ADDRESS("glBindFramebufferEXT");
glDeleteFramebuffersEXT = (PFNGLDELETEFRAMEBUFFERSEXTPROC) GLH_EXT_GET_PROC_ADDRESS("glDeleteFramebuffersEXT");
glGenFramebuffersEXT = (PFNGLGENFRAMEBUFFERSEXTPROC) GLH_EXT_GET_PROC_ADDRESS("glGenFramebuffersEXT");
glCheckFramebufferStatusEXT = (PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC) GLH_EXT_GET_PROC_ADDRESS("glCheckFramebufferStatusEXT");
glFramebufferTexture1DEXT = (PFNGLFRAMEBUFFERTEXTURE1DEXTPROC) GLH_EXT_GET_PROC_ADDRESS("glFramebufferTexture1DEXT");
glFramebufferTexture2DEXT = (PFNGLFRAMEBUFFERTEXTURE2DEXTPROC) GLH_EXT_GET_PROC_ADDRESS("glFramebufferTexture2DEXT");
glFramebufferTexture3DEXT = (PFNGLFRAMEBUFFERTEXTURE3DEXTPROC) GLH_EXT_GET_PROC_ADDRESS("glFramebufferTexture3DEXT");
glFramebufferRenderbufferEXT = (PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC) GLH_EXT_GET_PROC_ADDRESS("glFramebufferRenderbufferEXT");
glGetFramebufferAttachmentParameterivEXT = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVEXTPROC) GLH_EXT_GET_PROC_ADDRESS("glGetFramebufferAttachmentParameterivEXT");
glGenerateMipmapEXT = (PFNGLGENERATEMIPMAPEXTPROC) GLH_EXT_GET_PROC_ADDRESS("glGenerateMipmapEXT");
}
#if !LL_LINUX && !LL_SOLARIS
// This is expected to be a static symbol on Linux GL implementations
glDrawRangeElements = (PFNGLDRAWRANGEELEMENTSPROC)GLH_EXT_GET_PROC_ADDRESS("glDrawRangeElements");
if (!glDrawRangeElements)
{
mGLMaxVertexRange = 0;
mGLMaxIndexRange = 0;
}
#endif // !LL_LINUX
llinfos << "initExtensions() OcclusionQuery-related procs..." << llendl;
glGenQueriesARB = (PFNGLGENQUERIESARBPROC)GLH_EXT_GET_PROC_ADDRESS("glGenQueriesARB");
glDeleteQueriesARB = (PFNGLDELETEQUERIESARBPROC)GLH_EXT_GET_PROC_ADDRESS("glDeleteQueriesARB");
glIsQueryARB = (PFNGLISQUERYARBPROC)GLH_EXT_GET_PROC_ADDRESS("glIsQueryARB");
glBeginQueryARB = (PFNGLBEGINQUERYARBPROC)GLH_EXT_GET_PROC_ADDRESS("glBeginQueryARB");
glEndQueryARB = (PFNGLENDQUERYARBPROC)GLH_EXT_GET_PROC_ADDRESS("glEndQueryARB");
glGetQueryivARB = (PFNGLGETQUERYIVARBPROC)GLH_EXT_GET_PROC_ADDRESS("glGetQueryivARB");
glGetQueryObjectivARB = (PFNGLGETQUERYOBJECTIVARBPROC)GLH_EXT_GET_PROC_ADDRESS("glGetQueryObjectivARB");
glGetQueryObjectuivARB = (PFNGLGETQUERYOBJECTUIVARBPROC)GLH_EXT_GET_PROC_ADDRESS("glGetQueryObjectuivARB");
}
if (mHasPointParameters)
{
llinfos << "initExtensions() PointParameters-related procs..." << llendl;
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glPointParameterfARB = (PFNGLPOINTPARAMETERFARBPROC)GLH_EXT_GET_PROC_ADDRESS("glPointParameterfARB");
glPointParameterfvARB = (PFNGLPOINTPARAMETERFVARBPROC)GLH_EXT_GET_PROC_ADDRESS("glPointParameterfvARB");
}
if (mHasShaderObjects)
{
glDeleteObjectARB = (PFNGLDELETEOBJECTARBPROC) GLH_EXT_GET_PROC_ADDRESS("glDeleteObjectARB");
glGetHandleARB = (PFNGLGETHANDLEARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetHandleARB");
glDetachObjectARB = (PFNGLDETACHOBJECTARBPROC) GLH_EXT_GET_PROC_ADDRESS("glDetachObjectARB");
glCreateShaderObjectARB = (PFNGLCREATESHADEROBJECTARBPROC) GLH_EXT_GET_PROC_ADDRESS("glCreateShaderObjectARB");
glShaderSourceARB = (PFNGLSHADERSOURCEARBPROC) GLH_EXT_GET_PROC_ADDRESS("glShaderSourceARB");
glCompileShaderARB = (PFNGLCOMPILESHADERARBPROC) GLH_EXT_GET_PROC_ADDRESS("glCompileShaderARB");
glCreateProgramObjectARB = (PFNGLCREATEPROGRAMOBJECTARBPROC) GLH_EXT_GET_PROC_ADDRESS("glCreateProgramObjectARB");
glAttachObjectARB = (PFNGLATTACHOBJECTARBPROC) GLH_EXT_GET_PROC_ADDRESS("glAttachObjectARB");
glLinkProgramARB = (PFNGLLINKPROGRAMARBPROC) GLH_EXT_GET_PROC_ADDRESS("glLinkProgramARB");
glUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUseProgramObjectARB");
glValidateProgramARB = (PFNGLVALIDATEPROGRAMARBPROC) GLH_EXT_GET_PROC_ADDRESS("glValidateProgramARB");
glUniform1fARB = (PFNGLUNIFORM1FARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniform1fARB");
glUniform2fARB = (PFNGLUNIFORM2FARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniform2fARB");
glUniform3fARB = (PFNGLUNIFORM3FARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniform3fARB");
glUniform4fARB = (PFNGLUNIFORM4FARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniform4fARB");
glUniform1iARB = (PFNGLUNIFORM1IARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniform1iARB");
glUniform2iARB = (PFNGLUNIFORM2IARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniform2iARB");
glUniform3iARB = (PFNGLUNIFORM3IARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniform3iARB");
glUniform4iARB = (PFNGLUNIFORM4IARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniform4iARB");
glUniform1fvARB = (PFNGLUNIFORM1FVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniform1fvARB");
glUniform2fvARB = (PFNGLUNIFORM2FVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniform2fvARB");
glUniform3fvARB = (PFNGLUNIFORM3FVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniform3fvARB");
glUniform4fvARB = (PFNGLUNIFORM4FVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniform4fvARB");
glUniform1ivARB = (PFNGLUNIFORM1IVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniform1ivARB");
glUniform2ivARB = (PFNGLUNIFORM2IVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniform2ivARB");
glUniform3ivARB = (PFNGLUNIFORM3IVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniform3ivARB");
glUniform4ivARB = (PFNGLUNIFORM4IVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniform4ivARB");
glUniformMatrix2fvARB = (PFNGLUNIFORMMATRIX2FVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniformMatrix2fvARB");
glUniformMatrix3fvARB = (PFNGLUNIFORMMATRIX3FVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniformMatrix3fvARB");
glUniformMatrix4fvARB = (PFNGLUNIFORMMATRIX4FVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glUniformMatrix4fvARB");
glGetObjectParameterfvARB = (PFNGLGETOBJECTPARAMETERFVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetObjectParameterfvARB");
glGetObjectParameterivARB = (PFNGLGETOBJECTPARAMETERIVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetObjectParameterivARB");
glGetInfoLogARB = (PFNGLGETINFOLOGARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetInfoLogARB");
glGetAttachedObjectsARB = (PFNGLGETATTACHEDOBJECTSARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetAttachedObjectsARB");
glGetUniformLocationARB = (PFNGLGETUNIFORMLOCATIONARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetUniformLocationARB");
glGetActiveUniformARB = (PFNGLGETACTIVEUNIFORMARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetActiveUniformARB");
glGetUniformfvARB = (PFNGLGETUNIFORMFVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetUniformfvARB");
glGetUniformivARB = (PFNGLGETUNIFORMIVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetUniformivARB");
glGetShaderSourceARB = (PFNGLGETSHADERSOURCEARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetShaderSourceARB");
}
if (mHasVertexShader)
{
llinfos << "initExtensions() VertexShader-related procs..." << llendl;
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glGetAttribLocationARB = (PFNGLGETATTRIBLOCATIONARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetAttribLocationARB");
glBindAttribLocationARB = (PFNGLBINDATTRIBLOCATIONARBPROC) GLH_EXT_GET_PROC_ADDRESS("glBindAttribLocationARB");
glGetActiveAttribARB = (PFNGLGETACTIVEATTRIBARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetActiveAttribARB");
glVertexAttrib1dARB = (PFNGLVERTEXATTRIB1DARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib1dARB");
glVertexAttrib1dvARB = (PFNGLVERTEXATTRIB1DVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib1dvARB");
glVertexAttrib1fARB = (PFNGLVERTEXATTRIB1FARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib1fARB");
glVertexAttrib1fvARB = (PFNGLVERTEXATTRIB1FVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib1fvARB");
glVertexAttrib1sARB = (PFNGLVERTEXATTRIB1SARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib1sARB");
glVertexAttrib1svARB = (PFNGLVERTEXATTRIB1SVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib1svARB");
glVertexAttrib2dARB = (PFNGLVERTEXATTRIB2DARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib2dARB");
glVertexAttrib2dvARB = (PFNGLVERTEXATTRIB2DVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib2dvARB");
glVertexAttrib2fARB = (PFNGLVERTEXATTRIB2FARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib2fARB");
glVertexAttrib2fvARB = (PFNGLVERTEXATTRIB2FVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib2fvARB");
glVertexAttrib2sARB = (PFNGLVERTEXATTRIB2SARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib2sARB");
glVertexAttrib2svARB = (PFNGLVERTEXATTRIB2SVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib2svARB");
glVertexAttrib3dARB = (PFNGLVERTEXATTRIB3DARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib3dARB");
glVertexAttrib3dvARB = (PFNGLVERTEXATTRIB3DVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib3dvARB");
glVertexAttrib3fARB = (PFNGLVERTEXATTRIB3FARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib3fARB");
glVertexAttrib3fvARB = (PFNGLVERTEXATTRIB3FVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib3fvARB");
glVertexAttrib3sARB = (PFNGLVERTEXATTRIB3SARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib3sARB");
glVertexAttrib3svARB = (PFNGLVERTEXATTRIB3SVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib3svARB");
glVertexAttrib4nbvARB = (PFNGLVERTEXATTRIB4NBVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4nbvARB");
glVertexAttrib4nivARB = (PFNGLVERTEXATTRIB4NIVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4nivARB");
glVertexAttrib4nsvARB = (PFNGLVERTEXATTRIB4NSVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4nsvARB");
glVertexAttrib4nubARB = (PFNGLVERTEXATTRIB4NUBARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4nubARB");
glVertexAttrib4nubvARB = (PFNGLVERTEXATTRIB4NUBVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4nubvARB");
glVertexAttrib4nuivARB = (PFNGLVERTEXATTRIB4NUIVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4nuivARB");
glVertexAttrib4nusvARB = (PFNGLVERTEXATTRIB4NUSVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4nusvARB");
glVertexAttrib4bvARB = (PFNGLVERTEXATTRIB4BVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4bvARB");
glVertexAttrib4dARB = (PFNGLVERTEXATTRIB4DARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4dARB");
glVertexAttrib4dvARB = (PFNGLVERTEXATTRIB4DVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4dvARB");
glVertexAttrib4fARB = (PFNGLVERTEXATTRIB4FARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4fARB");
glVertexAttrib4fvARB = (PFNGLVERTEXATTRIB4FVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4fvARB");
glVertexAttrib4ivARB = (PFNGLVERTEXATTRIB4IVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4ivARB");
glVertexAttrib4sARB = (PFNGLVERTEXATTRIB4SARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4sARB");
glVertexAttrib4svARB = (PFNGLVERTEXATTRIB4SVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4svARB");
glVertexAttrib4ubvARB = (PFNGLVERTEXATTRIB4UBVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4ubvARB");
glVertexAttrib4uivARB = (PFNGLVERTEXATTRIB4UIVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4uivARB");
glVertexAttrib4usvARB = (PFNGLVERTEXATTRIB4USVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttrib4usvARB");
glVertexAttribPointerARB = (PFNGLVERTEXATTRIBPOINTERARBPROC) GLH_EXT_GET_PROC_ADDRESS("glVertexAttribPointerARB");
glEnableVertexAttribArrayARB = (PFNGLENABLEVERTEXATTRIBARRAYARBPROC) GLH_EXT_GET_PROC_ADDRESS("glEnableVertexAttribArrayARB");
glDisableVertexAttribArrayARB = (PFNGLDISABLEVERTEXATTRIBARRAYARBPROC) GLH_EXT_GET_PROC_ADDRESS("glDisableVertexAttribArrayARB");
glProgramStringARB = (PFNGLPROGRAMSTRINGARBPROC) GLH_EXT_GET_PROC_ADDRESS("glProgramStringARB");
glBindProgramARB = (PFNGLBINDPROGRAMARBPROC) GLH_EXT_GET_PROC_ADDRESS("glBindProgramARB");
glDeleteProgramsARB = (PFNGLDELETEPROGRAMSARBPROC) GLH_EXT_GET_PROC_ADDRESS("glDeleteProgramsARB");
glGenProgramsARB = (PFNGLGENPROGRAMSARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGenProgramsARB");
glProgramEnvParameter4dARB = (PFNGLPROGRAMENVPARAMETER4DARBPROC) GLH_EXT_GET_PROC_ADDRESS("glProgramEnvParameter4dARB");
glProgramEnvParameter4dvARB = (PFNGLPROGRAMENVPARAMETER4DVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glProgramEnvParameter4dvARB");
glProgramEnvParameter4fARB = (PFNGLPROGRAMENVPARAMETER4FARBPROC) GLH_EXT_GET_PROC_ADDRESS("glProgramEnvParameter4fARB");
glProgramEnvParameter4fvARB = (PFNGLPROGRAMENVPARAMETER4FVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glProgramEnvParameter4fvARB");
glProgramLocalParameter4dARB = (PFNGLPROGRAMLOCALPARAMETER4DARBPROC) GLH_EXT_GET_PROC_ADDRESS("glProgramLocalParameter4dARB");
glProgramLocalParameter4dvARB = (PFNGLPROGRAMLOCALPARAMETER4DVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glProgramLocalParameter4dvARB");
glProgramLocalParameter4fARB = (PFNGLPROGRAMLOCALPARAMETER4FARBPROC) GLH_EXT_GET_PROC_ADDRESS("glProgramLocalParameter4fARB");
glProgramLocalParameter4fvARB = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glProgramLocalParameter4fvARB");
glGetProgramEnvParameterdvARB = (PFNGLGETPROGRAMENVPARAMETERDVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetProgramEnvParameterdvARB");
glGetProgramEnvParameterfvARB = (PFNGLGETPROGRAMENVPARAMETERFVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetProgramEnvParameterfvARB");
glGetProgramLocalParameterdvARB = (PFNGLGETPROGRAMLOCALPARAMETERDVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetProgramLocalParameterdvARB");
glGetProgramLocalParameterfvARB = (PFNGLGETPROGRAMLOCALPARAMETERFVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetProgramLocalParameterfvARB");
glGetProgramivARB = (PFNGLGETPROGRAMIVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetProgramivARB");
glGetProgramStringARB = (PFNGLGETPROGRAMSTRINGARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetProgramStringARB");
glGetVertexAttribdvARB = (PFNGLGETVERTEXATTRIBDVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetVertexAttribdvARB");
glGetVertexAttribfvARB = (PFNGLGETVERTEXATTRIBFVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetVertexAttribfvARB");
glGetVertexAttribivARB = (PFNGLGETVERTEXATTRIBIVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glGetVertexAttribivARB");
glGetVertexAttribPointervARB = (PFNGLGETVERTEXATTRIBPOINTERVARBPROC) GLH_EXT_GET_PROC_ADDRESS("glgetVertexAttribPointervARB");
glIsProgramARB = (PFNGLISPROGRAMARBPROC) GLH_EXT_GET_PROC_ADDRESS("glIsProgramARB");
}
LL_DEBUGS("RenderInit") << "GL Probe: Got symbols" << LL_ENDL;
#endif
mInited = TRUE;
}
void rotate_quat(LLQuaternion& rotation)
{
F32 angle_radians, x, y, z;
rotation.getAngleAxis(&angle_radians, &x, &y, &z);
glRotatef(angle_radians * RAD_TO_DEG, x, y, z);
}
void flush_glerror()
{
glGetError();
}
void assert_glerror()
{
if (gNoRender || !gDebugGL)
{
return;
}
if (!gGLManager.mInited)
{
LL_ERRS("RenderInit") << "GL not initialized" << LL_ENDL;
}
// Create or update texture to be used with this data
GLenum error;
error = glGetError();
BOOL quit = FALSE;
while (error)
{
quit = TRUE;
#ifndef LL_LINUX // *FIX: ! This should be an error for linux as well.
GLubyte const * gl_error_msg = gluErrorString(error);
if (NULL != gl_error_msg)
{
LL_WARNS("RenderState") << "GL Error:" << error<< LL_ENDL;
LL_WARNS("RenderState") << "GL Error String:" << gl_error_msg << LL_ENDL;
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}
else
{
// gluErrorString returns NULL for some extensions' error codes.
// you'll probably have to grep for the number in glext.h.
LL_WARNS("RenderState") << "GL Error: UNKNOWN 0x" << std::hex << error << LL_ENDL;
}
error = glGetError();
#endif
}
if (quit)
{
llerrs << "One or more unhandled GL errors." << llendl;
}
}
void clear_glerror()
{
// Create or update texture to be used with this data
GLenum error;
error = glGetError();
}
///////////////////////////////////////////////////////////////
//
// LLGLState
//
// Static members
std::map<LLGLenum, LLGLboolean> LLGLState::sStateMap;
GLboolean LLGLDepthTest::sDepthEnabled = GL_FALSE; // OpenGL default
GLenum LLGLDepthTest::sDepthFunc = GL_LESS; // OpenGL default
GLboolean LLGLDepthTest::sWriteEnabled = GL_TRUE; // OpenGL default
//static
void LLGLState::initClass()
{
sStateMap[GL_DITHER] = GL_TRUE;
// sStateMap[GL_TEXTURE_2D] = GL_TRUE;
//make sure multisample defaults to disabled
sStateMap[GL_MULTISAMPLE_ARB] = GL_FALSE;
glDisable(GL_MULTISAMPLE_ARB);
}
//static
void LLGLState::restoreGL()
{
sStateMap.clear();
initClass();
}
//static
// Really shouldn't be needed, but seems we sometimes do.
void LLGLState::resetTextureStates()
{
gGL.flush();
GLint maxTextureUnits;
glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &maxTextureUnits);
for (S32 j = maxTextureUnits-1; j >=0; j--)
{
gGL.getTexUnit(j)->activate();
glClientActiveTextureARB(GL_TEXTURE0_ARB+j);
j == 0 ? gGL.getTexUnit(j)->enable(LLTexUnit::TT_TEXTURE) : gGL.getTexUnit(j)->disable();
}
}
void LLGLState::dumpStates()
{
LL_INFOS("RenderState") << "GL States:" << LL_ENDL;
for (std::map<LLGLenum, LLGLboolean>::iterator iter = sStateMap.begin();
iter != sStateMap.end(); ++iter)
{
LL_INFOS("RenderState") << llformat(" 0x%04x : %s",(S32)iter->first,iter->second?"TRUE":"FALSE") << LL_ENDL;
}
}
void LLGLState::checkStates(const std::string& msg)
{
if (!gDebugGL)
{
return;
}
stop_glerror();
GLint src;
GLint dst;
glGetIntegerv(GL_BLEND_SRC, &src);
glGetIntegerv(GL_BLEND_DST, &dst);
if (src != GL_SRC_ALPHA || dst != GL_ONE_MINUS_SRC_ALPHA)
{
LL_GL_ERRS << "Blend function corrupted: " << std::hex << src << " " << std::hex << dst << " " << msg << LL_ENDL;
}
for (std::map<LLGLenum, LLGLboolean>::iterator iter = sStateMap.begin();
iter != sStateMap.end(); ++iter)
{
LLGLenum state = iter->first;
LLGLboolean cur_state = iter->second;
LLGLboolean gl_state = glIsEnabled(state);
if(cur_state != gl_state)
{
dumpStates();
LL_GL_ERRS << llformat("LLGLState error. State: 0x%04x",state) << LL_ENDL;
}
}
stop_glerror();
}
void LLGLState::checkTextureChannels(const std::string& msg)
{
if (!gDebugGL)
{
return;
}
GLint activeTexture;
glGetIntegerv(GL_ACTIVE_TEXTURE_ARB, &activeTexture);
BOOL error = FALSE;
if (activeTexture == GL_TEXTURE0_ARB)
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{
GLint tex_env_mode = 0;
glGetTexEnviv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, &tex_env_mode);
if (tex_env_mode != GL_MODULATE)
{
error = TRUE;
LL_WARNS("RenderState") << "GL_TEXTURE_ENV_MODE invalid: " << std::hex << tex_env_mode << LL_ENDL;
}
}
GLint maxTextureUnits;
glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &maxTextureUnits);
static const char* label[] =
{
"GL_TEXTURE_2D",
"GL_TEXTURE_COORD_ARRAY",
"GL_TEXTURE_1D",
"GL_TEXTURE_CUBE_MAP_ARB",
"GL_TEXTURE_GEN_S",
"GL_TEXTURE_GEN_T",
"GL_TEXTURE_GEN_Q",
"GL_TEXTURE_GEN_R"
};
static GLint value[] =
{
GL_TEXTURE_2D,
GL_TEXTURE_COORD_ARRAY,
GL_TEXTURE_1D,
GL_TEXTURE_CUBE_MAP_ARB,
GL_TEXTURE_GEN_S,
GL_TEXTURE_GEN_T,
GL_TEXTURE_GEN_Q,
GL_TEXTURE_GEN_R
};
GLint stackDepth = 0;
LLMatrix4 identity;
LLMatrix4 matrix;
for (GLint i = 1; i < maxTextureUnits; i++)
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{
gGL.getTexUnit(i)->activate();
glClientActiveTextureARB(GL_TEXTURE0_ARB+i);
glGetIntegerv(GL_TEXTURE_STACK_DEPTH, &stackDepth);
if (stackDepth != 1)
{
error = TRUE;
LL_WARNS("RenderState") << "Texture matrix stack corrupted." << LL_ENDL;
}
glGetFloatv(GL_TEXTURE_MATRIX, (GLfloat*) matrix.mMatrix);
if (matrix != identity)
{
error = TRUE;
LL_WARNS("RenderState") << "Texture matrix in channel " << i << " corrupt." << LL_ENDL;
}
for (S32 j = (i == 0 ? 1 : 0); j < 8; j++)
{
if (glIsEnabled(value[j]))
{
error = TRUE;
LL_WARNS("RenderState") << "Texture channel " << i << " still has " << label[j] << " enabled." << LL_ENDL;
}
}
}
gGL.getTexUnit(0)->activate();
glClientActiveTextureARB(GL_TEXTURE0_ARB);
if (error)
{
LL_GL_ERRS << "GL texture state corruption detected. " << msg << LL_ENDL;
void LLGLState::checkClientArrays(const std::string& msg, U32 data_mask)
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{
if (!gDebugGL)
{
return;
}
stop_glerror();
BOOL error = FALSE;
GLint active_texture;
glGetIntegerv(GL_CLIENT_ACTIVE_TEXTURE_ARB, &active_texture);
if (active_texture != GL_TEXTURE0_ARB)
{
llwarns << "Client active texture corrupted: " << active_texture << llendl;
error = TRUE;
}
glGetIntegerv(GL_ACTIVE_TEXTURE_ARB, &active_texture);
if (active_texture != GL_TEXTURE0_ARB)
{
llwarns << "Active texture corrupted: " << active_texture << llendl;
error = TRUE;
}
static const char* label[] =
{
"GL_VERTEX_ARRAY",
"GL_NORMAL_ARRAY",
"GL_COLOR_ARRAY",
"GL_TEXTURE_COORD_ARRAY"
};
static GLint value[] =
{
GL_VERTEX_ARRAY,
GL_NORMAL_ARRAY,
GL_COLOR_ARRAY,
GL_TEXTURE_COORD_ARRAY
};
U32 mask[] =
{ //copied from llvertexbuffer.h
0x0001, //MAP_VERTEX,
0x0002, //MAP_NORMAL,
0x0010, //MAP_COLOR,
0x0004, //MAP_TEXCOORD
};
for (S32 j = 0; j < 4; j++)
{
if (glIsEnabled(value[j]))
{
if (!(mask[j] & data_mask))
{
error = TRUE;
LL_WARNS("RenderState") << "GL still has " << label[j] << " enabled." << LL_ENDL;
}
}
else
{
if (mask[j] & data_mask)
{
error = TRUE;
LL_WARNS("RenderState") << "GL does not have " << label[j] << " enabled." << LL_ENDL;
}
}
}
glClientActiveTextureARB(GL_TEXTURE1_ARB);
gGL.getTexUnit(1)->activate();
if (glIsEnabled(GL_TEXTURE_COORD_ARRAY))
{
if (!(data_mask & 0x0008))
{
error = TRUE;
LL_WARNS("RenderState") << "GL still has GL_TEXTURE_COORD_ARRAY enabled on channel 1." << LL_ENDL;
}
}
else
{
if (data_mask & 0x0008)
{
error = TRUE;
LL_WARNS("RenderState") << "GL does not have GL_TEXTURE_COORD_ARRAY enabled on channel 1." << LL_ENDL;
}
}
if (glIsEnabled(GL_TEXTURE_2D))
{
if (!(data_mask & 0x0008))
{
error = TRUE;
LL_WARNS("RenderState") << "GL still has GL_TEXTURE_2D enabled on channel 1." << LL_ENDL;
}
}
else
{
if (data_mask & 0x0008)
{
error = TRUE;
LL_WARNS("RenderState") << "GL does not have GL_TEXTURE_2D enabled on channel 1." << LL_ENDL;
}
}
glClientActiveTextureARB(GL_TEXTURE0_ARB);
gGL.getTexUnit(0)->activate();
if (error)
{
LL_GL_ERRS << "GL client array corruption detected. " << msg << LL_ENDL;
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}
}
///////////////////////////////////////////////////////////////////////
LLGLState::LLGLState(LLGLenum state, S32 enabled) :
mState(state), mWasEnabled(FALSE), mIsEnabled(FALSE)
{
stop_glerror();
if (state)
{
mWasEnabled = sStateMap[state];
llassert(mWasEnabled == glIsEnabled(state));
setEnabled(enabled);
stop_glerror();
}
}
void LLGLState::setEnabled(S32 enabled)
{
if (!mState)
{
return;
}
if (enabled == CURRENT_STATE)
{
enabled = sStateMap[mState] == GL_TRUE ? TRUE : FALSE;
}
else if (enabled == TRUE && sStateMap[mState] != GL_TRUE)
{
gGL.flush();
glEnable(mState);
sStateMap[mState] = GL_TRUE;
}
else if (enabled == FALSE && sStateMap[mState] != GL_FALSE)
{
gGL.flush();
glDisable(mState);
sStateMap[mState] = GL_FALSE;
}
mIsEnabled = enabled;
}
LLGLState::~LLGLState()
{
stop_glerror();
if (mState)
{
if (gDebugGL)
{
llassert_always(sStateMap[mState] == glIsEnabled(mState));
}
if (mIsEnabled != mWasEnabled)
{
gGL.flush();
if (mWasEnabled)
{
glEnable(mState);
sStateMap[mState] = GL_TRUE;
}
else
{
glDisable(mState);
sStateMap[mState] = GL_FALSE;
}
}
}
stop_glerror();
}
////////////////////////////////////////////////////////////////////////////////
void LLGLManager::initGLStates()
{
//gl states moved to classes in llglstates.h
LLGLState::initClass();
}
////////////////////////////////////////////////////////////////////////////////
void enable_vertex_weighting(const S32 index)
{
#if GL_ARB_vertex_program
if (index > 0) glEnableVertexAttribArrayARB(index); // vertex weights
#endif
}
void disable_vertex_weighting(const S32 index)
{
#if GL_ARB_vertex_program
if (index > 0) glDisableVertexAttribArrayARB(index); // vertex weights
#endif
}
void enable_binormals(const S32 index)
{
#if GL_ARB_vertex_program
if (index > 0)
{
glEnableVertexAttribArrayARB(index); // binormals
}
#endif
}
void disable_binormals(const S32 index)
{
#if GL_ARB_vertex_program
if (index > 0)
{
glDisableVertexAttribArrayARB(index); // binormals
}
#endif
}
void enable_cloth_weights(const S32 index)
{
#if GL_ARB_vertex_program
if (index > 0) glEnableVertexAttribArrayARB(index);
#endif
}
void disable_cloth_weights(const S32 index)
{
#if GL_ARB_vertex_program
if (index > 0) glDisableVertexAttribArrayARB(index);
#endif
}
void set_vertex_weights(const S32 index, const U32 stride, const F32 *weights)
{
#if GL_ARB_vertex_program
if (index > 0) glVertexAttribPointerARB(index, 1, GL_FLOAT, FALSE, stride, weights);
stop_glerror();
#endif
}
void set_vertex_clothing_weights(const S32 index, const U32 stride, const LLVector4 *weights)
{
#if GL_ARB_vertex_program
if (index > 0) glVertexAttribPointerARB(index, 4, GL_FLOAT, TRUE, stride, weights);
stop_glerror();
#endif
}
void set_binormals(const S32 index, const U32 stride,const LLVector3 *binormals)
{
#if GL_ARB_vertex_program
if (index > 0) glVertexAttribPointerARB(index, 3, GL_FLOAT, FALSE, stride, binormals);
stop_glerror();
#endif
}
void parse_gl_version( S32* major, S32* minor, S32* release, std::string* vendor_specific )
{
// GL_VERSION returns a null-terminated string with the format:
// <major>.<minor>[.<release>] [<vendor specific>]
const char* version = (const char*) glGetString(GL_VERSION);
*major = 0;
*minor = 0;
*release = 0;
vendor_specific->assign("");
if( !version )
{
return;
}
std::string ver_copy( version );
S32 len = (S32)strlen( version ); /* Flawfinder: ignore */
S32 i = 0;
S32 start;
// Find the major version
start = i;
for( ; i < len; i++ )
{
if( '.' == version[i] )
{
break;
}
}
std::string major_str = ver_copy.substr(start,i-start);
LLStringUtil::convertToS32(major_str, *major);
if( '.' == version[i] )
{
i++;
}
// Find the minor version
start = i;
for( ; i < len; i++ )
{
if( ('.' == version[i]) || isspace(version[i]) )
{
break;
}
}
std::string minor_str = ver_copy.substr(start,i-start);
LLStringUtil::convertToS32(minor_str, *minor);
// Find the release number (optional)
if( '.' == version[i] )
{
i++;
start = i;
for( ; i < len; i++ )
{
if( isspace(version[i]) )
{
break;
}
}
std::string release_str = ver_copy.substr(start,i-start);
LLStringUtil::convertToS32(release_str, *release);
}
// Skip over any white space
while( version[i] && isspace( version[i] ) )
{
i++;
}
// Copy the vendor-specific string (optional)
if( version[i] )
{
vendor_specific->assign( version + i );
}
}
LLGLUserClipPlane::LLGLUserClipPlane(const LLPlane& p, const glh::matrix4f& modelview, const glh::matrix4f& projection)
{
mModelview = modelview;
mProjection = projection;
setPlane(p.mV[0], p.mV[1], p.mV[2], p.mV[3]);
}
void LLGLUserClipPlane::setPlane(F32 a, F32 b, F32 c, F32 d)
{
glh::matrix4f& P = mProjection;
glh::matrix4f& M = mModelview;
glh::matrix4f invtrans_MVP = (P * M).inverse().transpose();
glh::vec4f oplane(a,b,c,d);
glh::vec4f cplane;
invtrans_MVP.mult_matrix_vec(oplane, cplane);
cplane /= fabs(cplane[2]); // normalize such that depth is not scaled
cplane[3] -= 1;
if(cplane[2] < 0)
cplane *= -1;
glh::matrix4f suffix;
suffix.set_row(2, cplane);
glh::matrix4f newP = suffix * P;
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadMatrixf(newP.m);
gGLObliqueProjectionInverse = LLMatrix4(newP.inverse().transpose().m);
glMatrixMode(GL_MODELVIEW);
}
LLGLUserClipPlane::~LLGLUserClipPlane()
{
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
}
LLGLNamePool::LLGLNamePool()
{
}
void LLGLNamePool::registerPool(LLGLNamePool* pool)
{
pool_list_t::iterator iter = std::find(sInstances.begin(), sInstances.end(), pool);
if (iter == sInstances.end())
{
sInstances.push_back(pool);
}
}
LLGLNamePool::~LLGLNamePool()
{
pool_list_t::iterator iter = std::find(sInstances.begin(), sInstances.end(), this);
if (iter != sInstances.end())
{
sInstances.erase(iter);
}
}
void LLGLNamePool::upkeep()
{
std::sort(mNameList.begin(), mNameList.end(), CompareUsed());
}
void LLGLNamePool::cleanup()
{
for (name_list_t::iterator iter = mNameList.begin(); iter != mNameList.end(); ++iter)
{
releaseName(iter->name);
}
mNameList.clear();
}
GLuint LLGLNamePool::allocate()
{
for (name_list_t::iterator iter = mNameList.begin(); iter != mNameList.end(); ++iter)
{
if (!iter->used)
{
iter->used = TRUE;
return iter->name;
}
}
NameEntry entry;
entry.name = allocateName();
entry.used = TRUE;
mNameList.push_back(entry);
return entry.name;
#else
return allocateName();
#endif
}
void LLGLNamePool::release(GLuint name)
{
for (name_list_t::iterator iter = mNameList.begin(); iter != mNameList.end(); ++iter)
{
if (iter->name == name)
{
if (iter->used)
{
iter->used = FALSE;
return;
}
else
{
llerrs << "Attempted to release a pooled name that is not in use!" << llendl;
}
llerrs << "Attempted to release a non pooled name!" << llendl;
#else
releaseName(name);
#endif
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}
//static
void LLGLNamePool::upkeepPools()
{
for (pool_list_t::iterator iter = sInstances.begin(); iter != sInstances.end(); ++iter)
{
LLGLNamePool* pool = *iter;
pool->upkeep();
}
}
//static
void LLGLNamePool::cleanupPools()
{
for (pool_list_t::iterator iter = sInstances.begin(); iter != sInstances.end(); ++iter)
{
LLGLNamePool* pool = *iter;
pool->cleanup();
}
}
LLGLDepthTest::LLGLDepthTest(GLboolean depth_enabled, GLboolean write_enabled, GLenum depth_func)
: mPrevDepthEnabled(sDepthEnabled), mPrevDepthFunc(sDepthFunc), mPrevWriteEnabled(sWriteEnabled)
{
if (depth_enabled != sDepthEnabled)
{
gGL.flush();
if (depth_enabled) glEnable(GL_DEPTH_TEST);
else glDisable(GL_DEPTH_TEST);
sDepthEnabled = depth_enabled;
}
if (depth_func != sDepthFunc)
{
gGL.flush();
glDepthFunc(depth_func);
sDepthFunc = depth_func;
}
if (write_enabled != sWriteEnabled)
{
gGL.flush();
glDepthMask(write_enabled);
sWriteEnabled = write_enabled;
}
}
LLGLDepthTest::~LLGLDepthTest()
{
if (sDepthEnabled != mPrevDepthEnabled )
{
gGL.flush();
if (mPrevDepthEnabled) glEnable(GL_DEPTH_TEST);
else glDisable(GL_DEPTH_TEST);
sDepthEnabled = mPrevDepthEnabled;
}
if (sDepthFunc != mPrevDepthFunc)
{
gGL.flush();
glDepthFunc(mPrevDepthFunc);
sDepthFunc = mPrevDepthFunc;
}
if (sWriteEnabled != mPrevWriteEnabled )
{
gGL.flush();
glDepthMask(mPrevWriteEnabled);
sWriteEnabled = mPrevWriteEnabled;
}
}
LLGLClampToFarClip::LLGLClampToFarClip(glh::matrix4f P)
{
for (U32 i = 0; i < 4; i++)
{
P.element(2, i) = P.element(3, i) * 0.99999f;
}
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadMatrixf(P.m);
glMatrixMode(GL_MODELVIEW);
}
LLGLClampToFarClip::~LLGLClampToFarClip()
{
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
}