Backed out changeset: 455175ba6c2e

--HG--
branch : opengl3

code/nel/src/3d/driver/opengl3/driver_opengl.h

@@ -75,19 +75,6 @@
 
 // For optimisation consideration, allow 256 lightmaps at max.
 #define	NL3D_DRV_MAX_LIGHTMAP		256
-
-
-/*
-#define CHECK_GL_ERROR { \
-	GLenum error = glGetError(); \
-	if (error != GL_NO_ERROR)\
-	{\
-		displayGLError(error);\
-		nlassert(0);\
-	}\
-}
-*/
-
 #define UNSUPPORTED_INDEX_OFFSET_MSG "Unsupported by driver, check IDriver::supportIndexOffset."
 
 using NLMISC::CMatrix;

code/nel/src/3d/driver/opengl3/driver_opengl_extension.cpp

@@ -64,6 +64,8 @@ void (*nglGetProcAddress(const char *procName))()
 // The exported function names
 
 // Core 3.30
+PFNGLGETSTRINGIPROC								nglGetStringi;
+
 PFNGLATTACHSHADERPROC							nglAttachShader;
 PFNGLCOMPILESHADERPROC							nglCompileShader;
 PFNGLCREATEPROGRAMPROC							nglCreateProgram;
@@ -245,6 +247,9 @@ PFNWGLGETSWAPINTERVALEXTPROC					nwglGetSwapIntervalEXT;
 // WGL_ARB_extensions_string
 PFNWGLGETEXTENSIONSSTRINGARBPROC				nwglGetExtensionsStringARB;
 
+// WGL_ARB_create_context_profile
+PFNWGLCREATECONTEXTATTRIBSARBPROC				nwglCreateContextAttribsARB;
+
 #elif defined(NL_OS_MAC)
 #elif defined(NL_OS_UNIX)
 
@@ -276,6 +281,19 @@ namespace NLDRIVERGL3 {
 #define CHECK_EXT(ext_str) \
 	if (strstr(glext, ext_str)==NULL) { nlwarning("3D: OpengGL extension '%s' was not found", ext_str); return false; } else { nldebug("3D: OpengGL Extension '%s' found", ext_str); }
 
+bool checkExt2(std::vector<const char *> &glext, const char *ext_str)
+{
+	for (int i = 0; i < glext.size(); ++i)
+	{
+		if (strcmp(glext[i], ext_str) == 0)
+			return true;
+	}
+	return false;
+}
+
+#define CHECK_EXT_2(ext_str) \
+	if (!checkExt2(glext, ext_str)) { nlwarning("3D: OpengGL extension '%s' was not found", ext_str); return false; } else { nldebug("3D: OpengGL Extension '%s' found", ext_str); }
+
 // Debug: don't return false if the procaddr returns 0
 // It means that it can crash if nel calls this extension but at least we have a warning to know why the extension is available but not the procaddr
 #define CHECK_ADDRESS(type, ext) \
@@ -286,11 +304,11 @@ namespace NLDRIVERGL3 {
 // Extensions registrations, and Windows function Registration.
 
 // *********************************
-static bool	setupEXTTextureCompressionS3TC(const char	*glext)
+static bool	setupEXTTextureCompressionS3TC(std::vector<const char *> &glext)
 {
 	H_AUTO_OGL(setupEXTTextureCompressionS3TC);
 
-	CHECK_EXT("GL_EXT_texture_compression_s3tc");
+	CHECK_EXT_2("GL_EXT_texture_compression_s3tc");
 	// TODO: check also for GL_S3_s3tc, GL_EXT_texture_compression_dxt1
 
 	return true;
@@ -329,14 +347,14 @@ static bool	setupWGLARBPixelFormat (const char	*glext)
 #endif
 
 // ***************************************************************************
-static bool	setupEXTTextureFilterAnisotropic(const char	*glext)
+static bool	setupEXTTextureFilterAnisotropic(std::vector<const char *> &glext)
 {
 	H_AUTO_OGL(setupEXTTextureFilterAnisotropic);
-	CHECK_EXT("GL_EXT_texture_filter_anisotropic");
+	CHECK_EXT_2("GL_EXT_texture_filter_anisotropic");
 	return true;
 }
 
-static bool setupGLCore(const char *glext)
+static bool setupGLCore(std::vector<const char *> &glext)
 {
 	CHECK_ADDRESS(PFNGLATTACHSHADERPROC, glAttachShader);
 	CHECK_ADDRESS(PFNGLCOMPILESHADERPROC, glCompileShader);
@@ -437,9 +455,9 @@ static bool setupGLCore(const char *glext)
 	return true;
 }
 
-static bool setupARBSeparateShaderObjects(const char *glext)
+static bool setupARBSeparateShaderObjects(std::vector<const char *> &glext)
 {
-	CHECK_EXT("GL_ARB_separate_shader_objects");
+	CHECK_EXT_2("GL_ARB_separate_shader_objects");
 
 	CHECK_ADDRESS(PFNGLUSEPROGRAMSTAGESPROC, glUseProgramStages);
 	CHECK_ADDRESS(PFNGLACTIVESHADERPROGRAMPROC, glActiveShaderProgram);
@@ -507,10 +525,12 @@ static bool setupARBSeparateShaderObjects(const char *glext)
 
 // ***************************************************************************
 // Extension Check.
-void	registerGlExtensions(CGlExtensions &ext)
+bool	registerGlExtensions(CGlExtensions &ext)
 {
 	H_AUTO_OGL(registerGlExtensions);
 
+	nldebug("Register OpenGL extensions");
+
 	const char	*nglVersion= (const char *)glGetString (GL_VERSION);
 	sint	a=0, b=0;
 
@@ -522,20 +542,36 @@ void	registerGlExtensions(CGlExtensions &ext)
 		nlassert(false);
 	}
 
+	nldebug("OpenGL version is OK");
+	
 	// Extensions.
-	const char	*glext= (const char*)glGetString(GL_EXTENSIONS);
+	/*const char	*glext= (const char*)glGetString(GL_EXTENSIONS);
-	GLint	ntext;
+	GLint	ntext;*/
+
+	// Get proc address
+	CHECK_ADDRESS(PFNGLGETSTRINGIPROC, glGetStringi);
+	nldebug("GL3: glGetStringi found!");
+
+	std::vector<const char *> glext;
+	GLint numExt;
+	glGetIntegerv(GL_NUM_EXTENSIONS, &numExt);
+	nldebug("GL3: GL_NUM_EXTENSIONS = %i", numExt);
+	glext.resize(numExt);
+	for (GLint i = 0; i < numExt; ++i)
+	{
+		glext[i] = static_cast<const char *>(static_cast<const void *>(nglGetStringi(GL_EXTENSIONS, i)));
+	}
 
 	nldebug("3D: Available OpenGL Extensions:");
 
 	if (DebugLog)
 	{
-		vector<string> exts;
+		//vector<string> exts;
-		explode(string(glext), string(" "), exts);
+		//explode(string(glext), string(" "), exts);
-		for (uint i = 0; i < exts.size(); i++)
+		for (uint i = 0; i < glext.size(); i++)
 		{
 			if (i%5==0) DebugLog->displayRaw("3D:     ");
-			DebugLog->displayRaw(string(exts[i]+" ").c_str());
+			DebugLog->displayRaw(string(string(glext[i]) + " ").c_str());
 			if (i%5==4) DebugLog->displayRaw("\n");
 		}
 		DebugLog->displayRaw("\n");
@@ -562,6 +598,8 @@ void	registerGlExtensions(CGlExtensions &ext)
 	GLint nbFragmentTextureUnits;
 	glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &nbFragmentTextureUnits);
 	ext.NbFragmentTextureUnits = (nbFragmentTextureUnits > IDRV_MAT_MAXTEXTURES) ? IDRV_MAT_MAXTEXTURES : nbFragmentTextureUnits; // FIXME GL3
+
+	return true;
 }
 
 
@@ -579,6 +617,19 @@ static bool	setupWGLEXTSwapControl(const char	*glext)
 	return true;
 }
 
+// *********************************
+static bool setupWGLARBCreateContextProfile(const char	*glext)
+{
+	H_AUTO_OGL(setupWGLARBCreateContextProfile);
+	CHECK_EXT("WGL_ARB_create_context_profile");
+
+#ifdef NL_OS_WINDOWS
+	CHECK_ADDRESS(PFNWGLCREATECONTEXTATTRIBSARBPROC, wglCreateContextAttribsARB);
+#endif
+
+	return true;
+}
+
 // *********************************
 static bool	setupGLXEXTSwapControl(const char	*glext)
 {
@@ -652,13 +703,16 @@ bool registerWGlExtensions(CGlExtensions &ext, HDC hDC)
 	}
 
 	// Check for pbuffer
-	ext.WGLARBPBuffer= setupWGLARBPBuffer(glext);
+	ext.WGLARBPBuffer = setupWGLARBPBuffer(glext);
 
 	// Check for pixel format
-	ext.WGLARBPixelFormat= setupWGLARBPixelFormat(glext);
+	ext.WGLARBPixelFormat = setupWGLARBPixelFormat(glext);
 
 	// Check for swap control
-	ext.WGLEXTSwapControl= setupWGLEXTSwapControl(glext);
+	ext.WGLEXTSwapControl = setupWGLEXTSwapControl(glext);
+
+	// Check for create context profile
+	ext.WGLARBCreateContextProfile = setupWGLARBCreateContextProfile(glext);
 
 	return true;
 }

code/nel/src/3d/driver/opengl3/driver_opengl_extension.h

@@ -52,6 +52,7 @@ struct	CGlExtensions
 	bool	WGLARBPBuffer;
 	bool	WGLARBPixelFormat;
 	bool	WGLEXTSwapControl;
+	bool	WGLARBCreateContextProfile;
 
 	// GLX extensions, true if supported
 	bool	GLXEXTSwapControl;
@@ -75,6 +76,7 @@ public:
 		WGLARBPBuffer = false;
 		WGLARBPixelFormat = false;
 		WGLEXTSwapControl = false;
+		WGLARBCreateContextProfile = false;
 
 		GLXEXTSwapControl = false;
 		GLXSGISwapControl = false;
@@ -105,6 +107,7 @@ public:
 		result += WGLARBPBuffer ? "WGLARBPBuffer " : "";
 		result += WGLARBPixelFormat ? "WGLARBPixelFormat " : "";
 		result += WGLEXTSwapControl ? "WGLEXTSwapControl " : "";
+		result += WGLARBCreateContextProfile ? "WGLARBCreateContextProfile" : "";
 #elif defined(NL_OS_MAC)
 #elif defined(NL_OS_UNIX)
 		result += "\n  GLX: ";
@@ -130,7 +133,7 @@ bool registerGlXExtensions(CGlExtensions &ext, Display *dpy, sint screen);
 #endif // NL_OS_WINDOWS
 
 /// This function test and register the extensions for the current GL context.
-void registerGlExtensions(CGlExtensions &ext);
+bool registerGlExtensions(CGlExtensions &ext);
 
 #ifdef NL_STATIC
 } // NLDRIVERGL3
@@ -148,6 +151,8 @@ void registerGlExtensions(CGlExtensions &ext);
 */
 
 // Core 3.30
+extern PFNGLGETSTRINGIPROC								nglGetStringi;
+
 extern PFNGLATTACHSHADERPROC							nglAttachShader;
 extern PFNGLCOMPILESHADERPROC							nglCompileShader;
 extern PFNGLCREATEPROGRAMPROC							nglCreateProgram;
@@ -329,9 +334,12 @@ extern PFNWGLCHOOSEPIXELFORMATARBPROC		nwglChoosePixelFormatARB;
 extern PFNWGLSWAPINTERVALEXTPROC			nwglSwapIntervalEXT;
 extern PFNWGLGETSWAPINTERVALEXTPROC			nwglGetSwapIntervalEXT;
 
-
 // WGL_ARB_extensions_string
-extern PFNWGLGETEXTENSIONSSTRINGARBPROC			nwglGetExtensionsStringARB;
+extern PFNWGLGETEXTENSIONSSTRINGARBPROC		nwglGetExtensionsStringARB;
+
+// WGL_ARB_create_context_profile
+extern PFNWGLCREATECONTEXTATTRIBSARBPROC	nwglCreateContextAttribsARB;
+
 
 #elif defined(NL_OS_MAC)
 #elif defined(NL_OS_UNIX)

code/nel/src/3d/driver/opengl3/driver_opengl_program.cpp

@@ -104,7 +104,6 @@ bool CDriverGL3::compileVertexProgram(CVertexProgram *program)
 		return false;
 
 	const char *s = src->SourcePtr;
-	glGetError();
 	unsigned int id = nglCreateShaderProgramv(GL_VERTEX_SHADER, 1, &s);
 
 	if (id == 0)
@@ -135,10 +134,6 @@ bool CDriverGL3::compileVertexProgram(CVertexProgram *program)
 		}
 	}
 
-	GLenum error = glGetError();
-	if (error != GL_NO_ERROR)
-		return false;
-
 	ItGPUPrgDrvInfoPtrList it = _GPUPrgDrvInfos.insert(_GPUPrgDrvInfos.end(),(NL3D::IProgramDrvInfos*)NULL);
 	CProgramDrvInfosGL3 *drvInfo = new CProgramDrvInfosGL3(this, it);
 	*it = drvInfo;
@@ -180,16 +175,8 @@ bool CDriverGL3::activeVertexProgram(CVertexProgram *program, bool driver)
 		m_DriverVertexProgram = NULL;
 		return false;
 	}
-	glGetError();
 
 	nglUseProgramStages(ppoId, GL_VERTEX_SHADER_BIT, drvInfo->getProgramId());
-	GLenum error = glGetError();
-	if (error != GL_NO_ERROR)
-	{
-		m_UserVertexProgram = NULL;
-		m_DriverVertexProgram = NULL;
-		return false;
-	}
 
 	if (!driver) m_UserVertexProgram = program;
 	m_DriverVertexProgram = program;
@@ -224,7 +211,6 @@ bool CDriverGL3::compilePixelProgram(CPixelProgram *program)
 		return false;
 
 	const char *s = src->SourcePtr;
-	glGetError();
 	unsigned int id = nglCreateShaderProgramv(GL_FRAGMENT_SHADER, 1, &s);
 	if (id == 0)
 		return false;
@@ -254,10 +240,6 @@ bool CDriverGL3::compilePixelProgram(CPixelProgram *program)
 		}
 	}
 
-	GLenum error = glGetError();
-	if (error != GL_NO_ERROR)
-		return false;
-
 	ItGPUPrgDrvInfoPtrList it = _GPUPrgDrvInfos.insert(_GPUPrgDrvInfos.end(), (NL3D::IProgramDrvInfos*)NULL);
 	CProgramDrvInfosGL3 *drvInfo = new CProgramDrvInfosGL3(this, it);
 	*it = drvInfo;
@@ -306,16 +288,8 @@ bool CDriverGL3::activePixelProgram(CPixelProgram *program, bool driver)
 		m_DriverPixelProgram = NULL;
 		return false;
 	}
-	glGetError();
 
 	nglUseProgramStages(ppoId, GL_FRAGMENT_SHADER_BIT, drvInfo->getProgramId());
-	GLenum error = glGetError();
-	if (error != GL_NO_ERROR)
-	{
-		m_UserPixelProgram = NULL;
-		m_DriverPixelProgram = NULL;
-		return false;
-	}
 
 	if (!driver) m_UserPixelProgram = program;
 	m_DriverPixelProgram = program;

code/nel/src/3d/driver/opengl3/driver_opengl_vertex_buffer_hard.cpp

@@ -75,11 +75,7 @@ IVertexBufferHardGL *CVertexArrayRange::createVBHardGL(uint size, CVertexBuffer
 
 	// create a ARB VBHard
 	GLuint vertexBufferID;
-	glGetError();
-
 	nglGenBuffers(1, &vertexBufferID);
-
-	if (glGetError() != GL_NO_ERROR) return NULL;
 	_Driver->_DriverGLStates.forceBindARBVertexBuffer(vertexBufferID);
 	switch(_VBType)
 	{
@@ -96,11 +92,6 @@ IVertexBufferHardGL *CVertexArrayRange::createVBHardGL(uint size, CVertexBuffer
 			nlassert(0);
 			break;
 	}
-	if (glGetError() != GL_NO_ERROR)
-	{
-		nglDeleteBuffers(1, &vertexBufferID);
-		return NULL;
-	}
 	CVertexBufferHard *newVbHard= new CVertexBufferHard(_Driver, vb);
 	newVbHard->initGL(vertexBufferID, this, _VBType);
 	_Driver->_DriverGLStates.forceBindARBVertexBuffer(0);
@@ -223,6 +214,7 @@ void *CVertexBufferHard::lock()
 		// recreate a vb
 		GLuint vertexBufferID;
 		
+		glGetError();
 		nglGenBuffers(1, &vertexBufferID);
 
 		if (glGetError() != GL_NO_ERROR)

code/nel/src/3d/driver/opengl3/driver_opengl_window.cpp

@@ -2373,9 +2373,37 @@ bool CDriverGL3::createContext()
 	{
 		return false;
 	}
-	_hRC=wglCreateContext(_hDC);
 
-	wglMakeCurrent(_hDC,_hRC);
+	bool hasRegularHRC = !_Extensions.WGLARBCreateContextProfile;
+	if (hasRegularHRC)
+	{
+		nldebug("Create regular OpenGL context");
+		_hRC = wglCreateContext(_hDC);
+		wglMakeCurrent(_hDC,_hRC);
+	}
+
+	nldebug("Register WGL extensions");
+	registerWGlExtensions(_Extensions, _hDC);
+	if (_Extensions.WGLARBCreateContextProfile)
+	{
+		if (hasRegularHRC)
+		{
+			nldebug("Delete regular OpenGL context");
+			wglMakeCurrent(_hDC, NULL);
+			wglDeleteContext(_hRC);
+			_hRC = NULL;
+		}
+		nldebug("Create OpenGL context for Core 3.30 profile");
+		int attribList[] = {
+			WGL_CONTEXT_MAJOR_VERSION_ARB, 3, 
+			WGL_CONTEXT_MINOR_VERSION_ARB, 3, 
+			WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_CORE_PROFILE_BIT_ARB, 
+			0, 0
+		};
+		_hRC = nwglCreateContextAttribsARB(_hDC, 0, attribList);
+		nldebug("Make current");
+		wglMakeCurrent(_hDC,_hRC);
+	}
 #endif
 
 	return true;