#include <OpenGl_ArbDbg.hxx>
#include <OpenGl_ArbFBO.hxx>
#include <OpenGl_ExtGS.hxx>
-#include <OpenGl_GlCore20.hxx>
+#include <OpenGl_ArbTexBindless.hxx>
+#include <OpenGl_GlCore44.hxx>
+#include <OpenGl_FrameBuffer.hxx>
+#include <OpenGl_Sampler.hxx>
#include <OpenGl_ShaderManager.hxx>
+#include <Graphic3d_TransformUtils.hxx>
#include <Message_Messenger.hxx>
//
#elif defined(__APPLE__) && !defined(MACOSX_USE_GLX)
#include <dlfcn.h>
+ #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
+ //
+ #else
+ #include <OpenGL/OpenGL.h>
+ #endif
#else
#include <GL/glx.h> // glXGetProcAddress()
#endif
-// GL_NVX_gpu_memory_info
-#ifndef GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX
- enum
- {
- GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX = 0x9047,
- GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX = 0x9048,
- GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX = 0x9049,
- GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX = 0x904A,
- GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX = 0x904B
- };
+#ifdef HAVE_GL2PS
+ #include <gl2ps.h>
+ #ifdef _MSC_VER
+ #pragma comment (lib, "gl2ps.lib")
+ #endif
#endif
-IMPLEMENT_STANDARD_HANDLE (OpenGl_Context, Standard_Transient)
-IMPLEMENT_STANDARD_RTTIEXT(OpenGl_Context, Standard_Transient)
namespace
{
core20fwd (NULL),
core32 (NULL),
core32back (NULL),
+ core33 (NULL),
+ core33back (NULL),
core41 (NULL),
core41back (NULL),
core42 (NULL),
caps (!theCaps.IsNull() ? theCaps : new OpenGl_Caps()),
#if defined(GL_ES_VERSION_2_0)
hasHighp (Standard_False),
+ hasUintIndex(Standard_False),
hasTexRGBA8(Standard_False),
#else
hasHighp (Standard_True),
+ hasUintIndex(Standard_True),
hasTexRGBA8(Standard_True),
#endif
- arbNPTW(Standard_False),
+ arbNPTW (Standard_False),
+ arbTexRG (Standard_False),
+ arbTexBindless (NULL),
arbTBO (NULL),
+ arbTboRGB32 (Standard_False),
arbIns (NULL),
arbDbg (NULL),
arbFBO (NULL),
+ arbFBOBlit (NULL),
extGS (NULL),
extBgra(Standard_False),
extAnis(Standard_False),
myGlVerMinor (0),
myIsInitialized (Standard_False),
myIsStereoBuffers (Standard_False),
+ myIsGlNormalizeEnabled (Standard_False),
#if !defined(GL_ES_VERSION_2_0)
myRenderMode (GL_RENDER),
#else
myRenderMode (0),
#endif
- myDrawBuffer (0)
+ myReadBuffer (0),
+ myDrawBuffer (0),
+ myDefaultVao (0),
+ myIsGlDebugCtx (Standard_False)
{
-#if defined(MAC_OS_X_VERSION_10_3) && !defined(MACOSX_USE_GLX)
+ // system-dependent fields
+#if defined(HAVE_EGL)
+ myDisplay = (Aspect_Display )EGL_NO_DISPLAY;
+ myWindow = (Aspect_Drawable )EGL_NO_SURFACE;
+ myGContext = (Aspect_RenderingContext )EGL_NO_CONTEXT;
+#elif defined(_WIN32)
+ myWindow = NULL;
+ myWindowDC = NULL;
+ myGContext = NULL;
+#elif defined(__APPLE__) && !defined(MACOSX_USE_GLX)
// Vendors can not extend functionality on this system
// and developers are limited to OpenGL support provided by Mac OS X SDK.
// We retrieve function pointers from system library
// Notice that GL version / extension availability checks are required
// because function pointers may be available but not functionality itself
// (depends on renderer).
+#if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
+ myGContext = NULL;
+ myGlLibHandle = dlopen ("/System/Library/Frameworks/OpenGLES.framework/OpenGLES", RTLD_LAZY);
+#else
+ myGContext = NULL;
myGlLibHandle = dlopen ("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
#endif
+#else
+ myDisplay = NULL;
+ myWindow = 0;
+ myGContext = 0;
+#endif
+
memset (myFuncs.operator->(), 0, sizeof(OpenGl_GlFunctions));
myShaderManager = new OpenGl_ShaderManager (this);
}
// release clean up queue
ReleaseDelayed();
+#if !defined(GL_ES_VERSION_2_0)
+ // release default VAO
+ if (myDefaultVao != 0
+ && IsValid()
+ && core32 != NULL)
+ {
+ core32->glDeleteVertexArrays (1, &myDefaultVao);
+ }
+ myDefaultVao = 0;
+#endif
+
+ // release default FBO
+ if (!myDefaultFbo.IsNull())
+ {
+ myDefaultFbo->Release (this);
+ myDefaultFbo.Nullify();
+ }
+
// release shared resources if any
if (((const Handle(Standard_Transient)& )mySharedResources)->GetRefCount() <= 1)
{
{
anIter.Value()->Release (this);
}
+
+ // release delayed resources added during deletion of shared resources
+ while (!myUnusedResources->IsEmpty())
+ {
+ myUnusedResources->First()->Release (this);
+ myUnusedResources->RemoveFirst();
+ }
}
- else
+ else if (myShaderManager->IsSameContext (this))
{
myShaderManager->SetContext (NULL);
}
mySharedResources.Nullify();
myDelayed.Nullify();
+ // release sampler object
+ if (!myTexSampler.IsNull())
+ {
+ myTexSampler->Release (this);
+ }
+
#if !defined(GL_ES_VERSION_2_0)
if (arbDbg != NULL
- && caps->contextDebug
+ && myIsGlDebugCtx
&& IsValid())
{
// reset callback
{
arbDbg->glDebugMessageCallbackARB (NULL, NULL);
}
+ myIsGlDebugCtx = Standard_False;
}
#endif
}
+// =======================================================================
+// function : forcedRelease
+// purpose :
+// =======================================================================
+void OpenGl_Context::forcedRelease()
+{
+ ReleaseDelayed();
+ for (NCollection_DataMap<TCollection_AsciiString, Handle(OpenGl_Resource)>::Iterator anIter (*mySharedResources);
+ anIter.More(); anIter.Next())
+ {
+ anIter.Value()->Release (this);
+ }
+ mySharedResources->Clear();
+ myShaderManager->clear();
+ myShaderManager->SetContext (NULL);
+
+ // release delayed resources added during deletion of shared resources
+ while (!myUnusedResources->IsEmpty())
+ {
+ myUnusedResources->First()->Release (this);
+ myUnusedResources->RemoveFirst();
+ }
+}
+
// =======================================================================
// function : MaxDegreeOfAnisotropy
// purpose :
return myMaxClipPlanes;
}
-// =======================================================================
-// function : SetDrawBufferLeft
-// purpose :
-// =======================================================================
-void OpenGl_Context::SetDrawBufferLeft()
-{
#if !defined(GL_ES_VERSION_2_0)
- switch (myDrawBuffer)
+inline Standard_Integer stereoToMonoBuffer (const Standard_Integer theBuffer)
+{
+ switch (theBuffer)
{
- case GL_BACK_RIGHT :
- case GL_BACK :
- glDrawBuffer (GL_BACK_LEFT);
- myDrawBuffer = GL_BACK_LEFT;
- break;
-
- case GL_FRONT_RIGHT :
- case GL_FRONT :
- glDrawBuffer (GL_FRONT_LEFT);
- myDrawBuffer = GL_FRONT_LEFT;
- break;
-
- case GL_FRONT_AND_BACK :
- case GL_RIGHT :
- glDrawBuffer (GL_LEFT);
- myDrawBuffer = GL_LEFT;
- break;
+ case GL_BACK_LEFT:
+ case GL_BACK_RIGHT:
+ return GL_BACK;
+ case GL_FRONT_LEFT:
+ case GL_FRONT_RIGHT:
+ return GL_FRONT;
+ default:
+ return theBuffer;
}
-#endif
}
+#endif
// =======================================================================
-// function : SetDrawBufferRight
+// function : SetReadBuffer
// purpose :
// =======================================================================
-void OpenGl_Context::SetDrawBufferRight()
+void OpenGl_Context::SetReadBuffer (const Standard_Integer theReadBuffer)
{
#if !defined(GL_ES_VERSION_2_0)
- switch (myDrawBuffer)
+ myReadBuffer = !myIsStereoBuffers ? stereoToMonoBuffer (theReadBuffer) : theReadBuffer;
+ if (myReadBuffer < GL_COLOR_ATTACHMENT0
+ && arbFBO != NULL)
{
- case GL_BACK_LEFT :
- case GL_BACK :
- glDrawBuffer (GL_BACK_RIGHT);
- myDrawBuffer = GL_BACK_RIGHT;
- break;
-
- case GL_FRONT_LEFT :
- case GL_FRONT :
- glDrawBuffer (GL_FRONT_RIGHT);
- myDrawBuffer = GL_FRONT_RIGHT;
- break;
-
- case GL_FRONT_AND_BACK :
- case GL_LEFT :
- glDrawBuffer (GL_RIGHT);
- myDrawBuffer = GL_RIGHT;
- break;
+ arbFBO->glBindFramebuffer (GL_FRAMEBUFFER, OpenGl_FrameBuffer::NO_FRAMEBUFFER);
}
+ ::glReadBuffer (myReadBuffer);
+#else
+ (void )theReadBuffer;
#endif
}
// =======================================================================
-// function : SetDrawBufferMono
+// function : SetDrawBuffer
// purpose :
// =======================================================================
-void OpenGl_Context::SetDrawBufferMono()
+void OpenGl_Context::SetDrawBuffer (const Standard_Integer theDrawBuffer)
{
#if !defined(GL_ES_VERSION_2_0)
- switch (myDrawBuffer)
+ myDrawBuffer = !myIsStereoBuffers ? stereoToMonoBuffer (theDrawBuffer) : theDrawBuffer;
+ if (myDrawBuffer < GL_COLOR_ATTACHMENT0
+ && arbFBO != NULL)
{
- case GL_BACK_LEFT :
- case GL_BACK_RIGHT :
- glDrawBuffer (GL_BACK);
- myDrawBuffer = GL_BACK;
- break;
-
- case GL_FRONT_LEFT :
- case GL_FRONT_RIGHT :
- glDrawBuffer (GL_FRONT);
- myDrawBuffer = GL_FRONT;
- break;
-
- case GL_LEFT :
- case GL_RIGHT :
- glDrawBuffer (GL_FRONT_AND_BACK);
- myDrawBuffer = GL_FRONT_AND_BACK;
- break;
+ arbFBO->glBindFramebuffer (GL_FRAMEBUFFER, OpenGl_FrameBuffer::NO_FRAMEBUFFER);
}
+ ::glDrawBuffer (myDrawBuffer);
+#else
+ (void )theDrawBuffer;
#endif
}
{
#if !defined(GL_ES_VERSION_2_0)
// cache feedback mode state
- glGetIntegerv (GL_RENDER_MODE, &myRenderMode);
+ if (core11 != NULL)
+ {
+ ::glGetIntegerv (GL_RENDER_MODE, &myRenderMode);
+ }
- // cache draw buffer state
- glGetIntegerv (GL_DRAW_BUFFER, &myDrawBuffer);
+ // cache buffers state
+ ::glGetIntegerv (GL_READ_BUFFER, &myReadBuffer);
+ ::glGetIntegerv (GL_DRAW_BUFFER, &myDrawBuffer);
#endif
}
#endif // __APPLE__
+// =======================================================================
+// function : SetSwapInterval
+// purpose :
+// =======================================================================
+Standard_Boolean OpenGl_Context::SetSwapInterval (const Standard_Integer theInterval)
+{
+#if defined(HAVE_EGL)
+ if (::eglSwapInterval ((EGLDisplay )myDisplay, theInterval) == EGL_TRUE)
+ {
+ return Standard_True;
+ }
+#elif defined(_WIN32)
+ if (myFuncs->wglSwapIntervalEXT != NULL)
+ {
+ myFuncs->wglSwapIntervalEXT (theInterval);
+ return Standard_True;
+ }
+#elif defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
+ //
+#elif defined(__APPLE__)
+ if (::CGLSetParameter (CGLGetCurrentContext(), kCGLCPSwapInterval, &theInterval) == kCGLNoError)
+ {
+ return Standard_True;
+ }
+#else
+ if (theInterval == -1
+ && myFuncs->glXSwapIntervalEXT != NULL)
+ {
+ typedef int (*glXSwapIntervalEXT_t_x)(Display* theDisplay, GLXDrawable theDrawable, int theInterval);
+ glXSwapIntervalEXT_t_x aFuncPtr = (glXSwapIntervalEXT_t_x )myFuncs->glXSwapIntervalEXT;
+ aFuncPtr ((Display* )myDisplay, (GLXDrawable )myWindow, theInterval);
+ return Standard_True;
+ }
+ else if (myFuncs->glXSwapIntervalSGI != NULL)
+ {
+ myFuncs->glXSwapIntervalSGI (theInterval);
+ return Standard_True;
+ }
+#endif
+ return Standard_False;
+}
+
// =======================================================================
// function : findProc
// purpose :
{
if (theExtName == NULL)
{
+#ifdef OCCT_DEBUG
std::cerr << "CheckExtension called with NULL string!\n";
+#endif
return Standard_False;
}
+#if !defined(GL_ES_VERSION_2_0)
// available since OpenGL 3.0
// and the ONLY way to check extensions with OpenGL 3.1+ core profile
- /**if (IsGlGreaterEqual (3, 0))
+ if (IsGlGreaterEqual (3, 0)
+ && myFuncs->glGetStringi != NULL)
{
GLint anExtNb = 0;
- glGetIntegerv (GL_NUM_EXTENSIONS, &anExtNb);
+ ::glGetIntegerv (GL_NUM_EXTENSIONS, &anExtNb);
+ const size_t anExtNameLen = strlen (theExtName);
for (GLint anIter = 0; anIter < anExtNb; ++anIter)
{
- const char* anExtension = (const char* )core30->glGetStringi (GL_EXTENSIONS, (GLuint )anIter);
- if (anExtension[anExtNameLen] == '\0' &&
- strncmp (anExtension, theExtName, anExtNameLen) == 0)
+ const char* anExtension = (const char* )myFuncs->glGetStringi (GL_EXTENSIONS, (GLuint )anIter);
+ const size_t aTestExtNameLen = strlen (anExtension);
+ if (aTestExtNameLen == anExtNameLen
+ && strncmp (anExtension, theExtName, anExtNameLen) == 0)
{
return Standard_True;
}
}
return Standard_False;
- }*/
+ }
+#endif
// use old way with huge string for all extensions
const char* anExtString = (const char* )glGetString (GL_EXTENSIONS);
// function : Init
// purpose :
// =======================================================================
-Standard_Boolean OpenGl_Context::Init()
+Standard_Boolean OpenGl_Context::Init (const Standard_Boolean theIsCoreProfile)
{
if (myIsInitialized)
{
return Standard_False;
}
- init();
+ init (theIsCoreProfile);
myIsInitialized = Standard_True;
return Standard_True;
}
#if defined(HAVE_EGL)
Standard_Boolean OpenGl_Context::Init (const Aspect_Drawable theEglSurface,
const Aspect_Display theEglDisplay,
- const Aspect_RenderingContext theEglContext)
+ const Aspect_RenderingContext theEglContext,
+ const Standard_Boolean theIsCoreProfile)
#elif defined(_WIN32)
Standard_Boolean OpenGl_Context::Init (const Aspect_Handle theWindow,
const Aspect_Handle theWindowDC,
- const Aspect_RenderingContext theGContext)
+ const Aspect_RenderingContext theGContext,
+ const Standard_Boolean theIsCoreProfile)
#elif defined(__APPLE__) && !defined(MACOSX_USE_GLX)
-Standard_Boolean OpenGl_Context::Init (const void* theGContext)
+
+#if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
+Standard_Boolean OpenGl_Context::Init (EAGLContext* theGContext,
+ const Standard_Boolean theIsCoreProfile)
+#else
+Standard_Boolean OpenGl_Context::Init (NSOpenGLContext* theGContext,
+ const Standard_Boolean theIsCoreProfile)
+#endif
+
#else
Standard_Boolean OpenGl_Context::Init (const Aspect_Drawable theWindow,
const Aspect_Display theDisplay,
- const Aspect_RenderingContext theGContext)
+ const Aspect_RenderingContext theGContext,
+ const Standard_Boolean theIsCoreProfile)
#endif
{
Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called only once!");
myGContext = theGContext;
myWindowDC = theWindowDC;
#elif defined(__APPLE__) && !defined(MACOSX_USE_GLX)
- myGContext = (void* )theGContext;
+ myGContext = theGContext;
#else
myWindow = theWindow;
myGContext = theGContext;
return Standard_False;
}
- init();
+ init (theIsCoreProfile);
myIsInitialized = Standard_True;
return Standard_True;
}
}
// =======================================================================
-// function : readGlVersion
+// function : ReadGlVersion
// purpose :
// =======================================================================
-void OpenGl_Context::readGlVersion()
+void OpenGl_Context::ReadGlVersion (Standard_Integer& theGlVerMajor,
+ Standard_Integer& theGlVerMinor)
{
// reset values
- myGlVerMajor = 0;
- myGlVerMinor = 0;
+ theGlVerMajor = 0;
+ theGlVerMinor = 0;
#ifdef GL_MAJOR_VERSION
// available since OpenGL 3.0 and OpenGL 3.0 ES
// This happens on some renderers like e.g. Cygwin MESA.
// Thus checking additionally if GL has put anything to
// the output variables.
- if (glGetError() == GL_NO_ERROR && aMajor != 0 && aMinor != 0)
+ if (::glGetError() == GL_NO_ERROR && aMajor != 0 && aMinor != 0)
{
- myGlVerMajor = aMajor;
- myGlVerMinor = aMinor;
+ theGlVerMajor = aMajor;
+ theGlVerMinor = aMinor;
return;
}
- ResetErrors();
+ for (GLenum anErr = ::glGetError(), aPrevErr = GL_NO_ERROR;; aPrevErr = anErr, anErr = ::glGetError())
+ {
+ if (anErr == GL_NO_ERROR
+ || anErr == aPrevErr)
+ {
+ break;
+ }
+ }
#endif
// Read version string.
aMinorStr[aMinIter] = '\0';
// read numbers
- myGlVerMajor = atoi (aMajorStr);
- myGlVerMinor = atoi (aMinorStr);
+ theGlVerMajor = atoi (aMajorStr);
+ theGlVerMinor = atoi (aMinorStr);
- if (myGlVerMajor <= 0)
+ if (theGlVerMajor <= 0)
{
- myGlVerMajor = 0;
- myGlVerMinor = 0;
+ theGlVerMajor = 0;
+ theGlVerMinor = 0;
}
}
const unsigned int theSeverity,
const TCollection_ExtendedString& theMessage)
{
- //OpenGl_Context* aCtx = (OpenGl_Context* )theUserParam;
+ if (caps->suppressExtraMsg
+ && theSource >= GL_DEBUG_SOURCE_API_ARB
+ && theSource <= GL_DEBUG_SOURCE_OTHER_ARB
+ && myFilters[theSource - GL_DEBUG_SOURCE_API_ARB].Contains (theId))
+ {
+ return;
+ }
+
Standard_CString& aSrc = (theSource >= GL_DEBUG_SOURCE_API_ARB
&& theSource <= GL_DEBUG_SOURCE_OTHER_ARB)
? THE_DBGMSG_SOURCES[theSource - GL_DEBUG_SOURCE_API_ARB]
Messenger()->Send (aMsg, aGrav);
}
+// =======================================================================
+// function : ExcludeMessage
+// purpose :
+// ======================================================================
+Standard_Boolean OpenGl_Context::ExcludeMessage (const unsigned int theSource,
+ const unsigned int theId)
+{
+ return theSource >= GL_DEBUG_SOURCE_API_ARB
+ && theSource <= GL_DEBUG_SOURCE_OTHER_ARB
+ && myFilters[theSource - GL_DEBUG_SOURCE_API_ARB].Add (theId);
+}
+
+// =======================================================================
+// function : IncludeMessage
+// purpose :
+// ======================================================================
+Standard_Boolean OpenGl_Context::IncludeMessage (const unsigned int theSource,
+ const unsigned int theId)
+{
+ return theSource >= GL_DEBUG_SOURCE_API_ARB
+ && theSource <= GL_DEBUG_SOURCE_OTHER_ARB
+ && myFilters[theSource - GL_DEBUG_SOURCE_API_ARB].Remove (theId);
+}
+
+// =======================================================================
+// function : checkWrongVersion
+// purpose :
+// ======================================================================
+void OpenGl_Context::checkWrongVersion (const Standard_Integer theGlVerMajor,
+ const Standard_Integer theGlVerMinor)
+{
+ if (!IsGlGreaterEqual (theGlVerMajor, theGlVerMinor))
+ {
+ return;
+ }
+
+ TCollection_ExtendedString aMsg = TCollection_ExtendedString()
+ + "Error! OpenGL context reports version "
+ + myGlVerMajor + "." + myGlVerMinor
+ + " but does not export required functions for "
+ + theGlVerMajor + "." + theGlVerMinor;
+ PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB,
+ GL_DEBUG_TYPE_ERROR_ARB,
+ 0,
+ GL_DEBUG_SEVERITY_HIGH_ARB,
+ aMsg);
+}
+
// =======================================================================
// function : init
// purpose :
// =======================================================================
-void OpenGl_Context::init()
+void OpenGl_Context::init (const Standard_Boolean theIsCoreProfile)
{
// read version
- readGlVersion();
+ myGlVerMajor = 0;
+ myGlVerMinor = 0;
+ ReadGlVersion (myGlVerMajor, myGlVerMinor);
+ myVendor = (const char* )::glGetString (GL_VENDOR);
+
+#if defined(GL_ES_VERSION_2_0)
+ (void )theIsCoreProfile;
+ const bool isCoreProfile = false;
+#else
+
+ if (myVendor.Search ("NVIDIA") != -1)
+ {
+ // Buffer detailed info: Buffer object 1 (bound to GL_ARRAY_BUFFER_ARB, usage hint is GL_STATIC_DRAW)
+ // will use VIDEO memory as the source for buffer object operations.
+ ExcludeMessage (GL_DEBUG_SOURCE_API_ARB, 131185);
+ }
+ if (IsGlGreaterEqual (3, 0))
+ {
+ // retrieve auxiliary function in advance
+ FindProc ("glGetStringi", myFuncs->glGetStringi);
+ }
+
+ bool isCoreProfile = false;
+ if (IsGlGreaterEqual (3, 2))
+ {
+ isCoreProfile = (theIsCoreProfile == Standard_True);
- core11 = (OpenGl_GlCore11* )(&(*myFuncs));
+ // detect Core profile
+ if (!isCoreProfile)
+ {
+ GLint aProfile = 0;
+ ::glGetIntegerv (GL_CONTEXT_PROFILE_MASK, &aProfile);
+ isCoreProfile = (aProfile & GL_CONTEXT_CORE_PROFILE_BIT) != 0;
+ }
+ }
+#endif
+
+ core11 = NULL;
+ if (!isCoreProfile)
+ {
+ core11 = (OpenGl_GlCore11* )(&(*myFuncs));
+ }
core11fwd = (OpenGl_GlCore11Fwd* )(&(*myFuncs));
core15 = NULL;
core15fwd = NULL;
core20fwd = NULL;
core32 = NULL;
core32back = NULL;
+ core33 = NULL;
+ core33back = NULL;
core41 = NULL;
core41back = NULL;
core42 = NULL;
core44 = NULL;
core44back = NULL;
arbTBO = NULL;
+ arbTboRGB32 = Standard_False;
arbIns = NULL;
arbDbg = NULL;
arbFBO = NULL;
+ arbFBOBlit = NULL;
extGS = NULL;
+ myDefaultVao = 0;
#if defined(GL_ES_VERSION_2_0)
hasTexRGBA8 = IsGlGreaterEqual (3, 0)
|| CheckExtension ("GL_OES_rgb8_rgba8");
- arbNPTW = IsGlGreaterEqual (3, 0)
- || CheckExtension ("GL_OES_texture_npot");
+ // NPOT textures has limited support within OpenGL ES 2.0
+ // which are relaxed by OpenGL ES 3.0 or some extensions
+ //arbNPTW = IsGlGreaterEqual (3, 0)
+ // || CheckExtension ("GL_OES_texture_npot")
+ // || CheckExtension ("GL_NV_texture_npot_2D_mipmap");
+ arbNPTW = Standard_True;
arbTexRG = IsGlGreaterEqual (3, 0)
|| CheckExtension ("GL_EXT_texture_rg");
extBgra = CheckExtension ("GL_EXT_texture_format_BGRA8888");
core20 = (OpenGl_GlCore20* )(&(*myFuncs));
core20fwd = (OpenGl_GlCore20Fwd* )(&(*myFuncs));
core15fwd = (OpenGl_GlCore15Fwd* )(&(*myFuncs));
- arbFBO = (OpenGl_ArbFBO* )(&(*myFuncs));
+ arbFBO = (OpenGl_ArbFBO* )(&(*myFuncs));
+ }
+ if (IsGlGreaterEqual (3, 0)
+ && FindProc ("glBlitFramebuffer", myFuncs->glBlitFramebuffer))
+ {
+ arbFBOBlit = (OpenGl_ArbFBOBlit* )(&(*myFuncs));
}
- hasHighp = CheckExtension ("OES_fragment_precision_high");
+ hasUintIndex = IsGlGreaterEqual (3, 0)
+ || CheckExtension ("GL_OES_element_index_uint");
+ hasHighp = CheckExtension ("GL_OES_fragment_precision_high");
GLint aRange[2] = {0, 0};
- GLint aPrec [2] = {0, 0};
- ::glGetShaderPrecisionFormat (GL_FRAGMENT_SHADER, GL_HIGH_FLOAT, aRange, aPrec);
- if (aPrec[1] != 0)
+ GLint aPrec = 0;
+ ::glGetShaderPrecisionFormat (GL_FRAGMENT_SHADER, GL_HIGH_FLOAT, aRange, &aPrec);
+ if (aPrec != 0)
{
hasHighp = Standard_True;
}
//! Make record shorter to retrieve function pointer using variable with same name
#define FindProcShort(theFunc) FindProc(#theFunc, myFuncs->theFunc)
- // retrieve platform-dependent extensions
-#if defined(_WIN32) && !defined(HAVE_EGL)
+ // retrieve platform-dependent extensions
+#if defined(HAVE_EGL)
+ //
+#elif defined(_WIN32)
if (FindProcShort (wglGetExtensionsStringARB))
{
const char* aWglExts = myFuncs->wglGetExtensionsStringARB (wglGetCurrentDC());
FindProcShort (wglDXUnlockObjectsNV);
}
}
+#elif defined(__APPLE__)
+ //
+#else
+ const char* aGlxExts = ::glXQueryExtensionsString ((Display* )myDisplay, DefaultScreen ((Display* )myDisplay));
+ if (CheckExtension (aGlxExts, "GLX_EXT_swap_control"))
+ {
+ FindProcShort (glXSwapIntervalEXT);
+ }
+ if (CheckExtension (aGlxExts, "GLX_SGI_swap_control"))
+ {
+ FindProcShort (glXSwapIntervalSGI);
+ }
+ //extSwapTear = CheckExtension (aGlxExts, "GLX_EXT_swap_control_tear");
#endif
// initialize debug context extension
&& caps->contextDebug)
{
// setup default callback
+ myIsGlDebugCtx = Standard_True;
arbDbg->glDebugMessageCallbackARB (debugCallbackWrap, this);
- #ifdef DEB
- glEnable (GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB);
- #endif
+ if (caps->contextSyncDebug)
+ {
+ ::glEnable (GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB);
+ }
}
}
&& FindProcShort (glCompressedTexSubImage3D)
&& FindProcShort (glCompressedTexSubImage2D)
&& FindProcShort (glCompressedTexSubImage1D)
- && FindProcShort (glGetCompressedTexImage)
+ && FindProcShort (glGetCompressedTexImage);
+
+ if (!isCoreProfile)
+ {
+ has13 = has13
&& FindProcShort (glClientActiveTexture)
&& FindProcShort (glMultiTexCoord1d)
&& FindProcShort (glMultiTexCoord1dv)
&& FindProcShort (glLoadTransposeMatrixd)
&& FindProcShort (glMultTransposeMatrixf)
&& FindProcShort (glMultTransposeMatrixd);
+ }
// load OpenGL 1.4 new functions
has14 = IsGlGreaterEqual (1, 4)
// load GL_ARB_vertex_type_2_10_10_10_rev (added to OpenGL 3.3 core)
const bool hasVertType21010101rev = (IsGlGreaterEqual (3, 3) || CheckExtension ("GL_ARB_vertex_type_2_10_10_10_rev"))
- && FindProcShort (glVertexP2ui)
+ && FindProcShort (glVertexAttribP1ui)
+ && FindProcShort (glVertexAttribP1uiv)
+ && FindProcShort (glVertexAttribP2ui)
+ && FindProcShort (glVertexAttribP2uiv)
+ && FindProcShort (glVertexAttribP3ui)
+ && FindProcShort (glVertexAttribP3uiv)
+ && FindProcShort (glVertexAttribP4ui)
+ && FindProcShort (glVertexAttribP4uiv);
+
+ if ( hasVertType21010101rev
+ && !isCoreProfile)
+ {
+ // load deprecated functions
+ const bool hasVertType21010101revExt =
+ FindProcShort (glVertexP2ui)
&& FindProcShort (glVertexP2uiv)
&& FindProcShort (glVertexP3ui)
&& FindProcShort (glVertexP3uiv)
&& FindProcShort (glColorP4ui)
&& FindProcShort (glColorP4uiv)
&& FindProcShort (glSecondaryColorP3ui)
- && FindProcShort (glSecondaryColorP3uiv)
- && FindProcShort (glVertexAttribP1ui)
- && FindProcShort (glVertexAttribP1uiv)
- && FindProcShort (glVertexAttribP2ui)
- && FindProcShort (glVertexAttribP2uiv)
- && FindProcShort (glVertexAttribP3ui)
- && FindProcShort (glVertexAttribP3uiv)
- && FindProcShort (glVertexAttribP4ui)
- && FindProcShort (glVertexAttribP4uiv);
+ && FindProcShort (glSecondaryColorP3uiv);
+ (void )hasVertType21010101revExt;
+ }
// load OpenGL 3.3 extra functions
has33 = IsGlGreaterEqual (3, 3)
const bool hasTextureStorage = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_texture_storage"))
&& FindProcShort (glTexStorage1D)
&& FindProcShort (glTexStorage2D)
- && FindProcShort (glTexStorage3D)
- && FindProcShort (glTextureStorage1DEXT)
- && FindProcShort (glTextureStorage2DEXT)
- && FindProcShort (glTextureStorage3DEXT);
+ && FindProcShort (glTexStorage3D);
has42 = IsGlGreaterEqual (4, 2)
&& hasBaseInstance
{
arbTBO = (OpenGl_ArbTBO* )(&(*myFuncs));
}
+ arbTboRGB32 = CheckExtension ("GL_ARB_texture_buffer_object_rgb32");
// initialize hardware instancing extension (ARB)
if (!has31
// initialize FBO extension (ARB)
if (hasFBO)
{
- arbFBO = (OpenGl_ArbFBO* )(&(*myFuncs));
+ arbFBO = (OpenGl_ArbFBO* )(&(*myFuncs));
+ arbFBOBlit = (OpenGl_ArbFBOBlit* )(&(*myFuncs));
extPDS = Standard_True; // extension for EXT, but part of ARB
}
extGS = (OpenGl_ExtGS* )(&(*myFuncs));
}
+ // initialize bindless texture extension (ARB)
+ if (CheckExtension ("GL_ARB_bindless_texture")
+ && FindProcShort (glGetTextureHandleARB)
+ && FindProcShort (glGetTextureSamplerHandleARB)
+ && FindProcShort (glMakeTextureHandleResidentARB)
+ && FindProcShort (glMakeTextureHandleNonResidentARB)
+ && FindProcShort (glGetImageHandleARB)
+ && FindProcShort (glMakeImageHandleResidentARB)
+ && FindProcShort (glMakeImageHandleNonResidentARB)
+ && FindProcShort (glUniformHandleui64ARB)
+ && FindProcShort (glUniformHandleui64vARB)
+ && FindProcShort (glProgramUniformHandleui64ARB)
+ && FindProcShort (glProgramUniformHandleui64vARB)
+ && FindProcShort (glIsTextureHandleResidentARB)
+ && FindProcShort (glIsImageHandleResidentARB)
+ && FindProcShort (glVertexAttribL1ui64ARB)
+ && FindProcShort (glVertexAttribL1ui64vARB)
+ && FindProcShort (glGetVertexAttribLui64vARB))
+ {
+ arbTexBindless = (OpenGl_ArbTexBindless* )(&(*myFuncs));
+ }
+
if (!has12)
{
+ checkWrongVersion (1, 2);
myGlVerMajor = 1;
myGlVerMinor = 1;
return;
}
else if (!has13)
{
+ checkWrongVersion (1, 3);
myGlVerMajor = 1;
myGlVerMinor = 2;
return;
}
else if (!has14)
{
+ checkWrongVersion (1, 4);
myGlVerMajor = 1;
myGlVerMinor = 3;
return;
}
else if (!has15)
{
+ checkWrongVersion (1, 5);
myGlVerMajor = 1;
myGlVerMinor = 4;
return;
}
- core15 = (OpenGl_GlCore15* )(&(*myFuncs));
+ if (!isCoreProfile)
+ {
+ core15 = (OpenGl_GlCore15* )(&(*myFuncs));
+ }
core15fwd = (OpenGl_GlCore15Fwd* )(&(*myFuncs));
if (!has20)
{
+ checkWrongVersion (2, 0);
+ myGlVerMajor = 1;
+ myGlVerMinor = 5;
+ return;
+ }
+
+ const char* aGlslVer = (const char* )::glGetString (GL_SHADING_LANGUAGE_VERSION);
+ if (aGlslVer == NULL
+ || *aGlslVer == '\0')
+ {
+ // broken context has been detected
+ TCollection_ExtendedString aMsg = TCollection_ExtendedString()
+ + "Error! OpenGL context reports version "
+ + myGlVerMajor + "." + myGlVerMinor
+ + " but reports wrong GLSL version";
+ PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB,
+ GL_DEBUG_TYPE_ERROR_ARB,
+ 0,
+ GL_DEBUG_SEVERITY_HIGH_ARB,
+ aMsg);
myGlVerMajor = 1;
myGlVerMinor = 5;
return;
}
- core20 = (OpenGl_GlCore20* )(&(*myFuncs));
+ if (!isCoreProfile)
+ {
+ core20 = (OpenGl_GlCore20* )(&(*myFuncs));
+ }
core20fwd = (OpenGl_GlCore20Fwd* )(&(*myFuncs));
if (!has21)
{
+ checkWrongVersion (2, 1);
myGlVerMajor = 2;
myGlVerMinor = 0;
return;
if (!has30)
{
+ checkWrongVersion (3, 0);
myGlVerMajor = 2;
myGlVerMinor = 1;
return;
if (!has31)
{
+ checkWrongVersion (3, 1);
myGlVerMajor = 3;
myGlVerMinor = 0;
return;
if (!has32)
{
+ checkWrongVersion (3, 2);
myGlVerMajor = 3;
myGlVerMinor = 1;
return;
}
- core32 = (OpenGl_GlCore32* )(&(*myFuncs));
- core32back = (OpenGl_GlCore32Back* )(&(*myFuncs));
+ core32 = (OpenGl_GlCore32* )(&(*myFuncs));
+ if (isCoreProfile)
+ {
+ core32->glGenVertexArrays (1, &myDefaultVao);
+ }
+ else
+ {
+ core32back = (OpenGl_GlCore32Back* )(&(*myFuncs));
+ }
if (!has33)
{
+ checkWrongVersion (3, 3);
myGlVerMajor = 3;
myGlVerMinor = 2;
return;
}
+ core33 = (OpenGl_GlCore33* )(&(*myFuncs));
+ if (!isCoreProfile)
+ {
+ core33back = (OpenGl_GlCore33Back* )(&(*myFuncs));
+ }
+
+ // initialize sampler object
+ myTexSampler = new OpenGl_Sampler();
+ myTexSampler->Init (*this);
if (!has40)
{
+ checkWrongVersion (4, 0);
myGlVerMajor = 3;
myGlVerMinor = 3;
return;
}
+ arbTboRGB32 = Standard_True; // in core since OpenGL 4.0
if (!has41)
{
+ checkWrongVersion (4, 1);
myGlVerMajor = 4;
myGlVerMinor = 0;
return;
}
- core41 = (OpenGl_GlCore41* )(&(*myFuncs));
- core41back = (OpenGl_GlCore41Back* )(&(*myFuncs));
+ core41 = (OpenGl_GlCore41* )(&(*myFuncs));
+ if (!isCoreProfile)
+ {
+ core41back = (OpenGl_GlCore41Back* )(&(*myFuncs));
+ }
if(!has42)
{
+ checkWrongVersion (4, 2);
myGlVerMajor = 4;
myGlVerMinor = 1;
return;
}
- core42 = (OpenGl_GlCore42* )(&(*myFuncs));
- core42back = (OpenGl_GlCore42Back* )(&(*myFuncs));
+ core42 = (OpenGl_GlCore42* )(&(*myFuncs));
+ if (!isCoreProfile)
+ {
+ core42back = (OpenGl_GlCore42Back* )(&(*myFuncs));
+ }
- if(!has43)
+ if (!has43)
{
+ checkWrongVersion (4, 3);
myGlVerMajor = 4;
myGlVerMinor = 2;
return;
}
- core43 = (OpenGl_GlCore43* )(&(*myFuncs));
- core43back = (OpenGl_GlCore43Back* )(&(*myFuncs));
+ core43 = (OpenGl_GlCore43* )(&(*myFuncs));
+ if (!isCoreProfile)
+ {
+ core43back = (OpenGl_GlCore43Back* )(&(*myFuncs));
+ }
if (!has44)
{
+ checkWrongVersion (4, 4);
myGlVerMajor = 4;
myGlVerMinor = 3;
return;
}
- core44 = (OpenGl_GlCore44* )(&(*myFuncs));
- core44back = (OpenGl_GlCore44Back* )(&(*myFuncs));
+ core44 = (OpenGl_GlCore44* )(&(*myFuncs));
+ if (!isCoreProfile)
+ {
+ core44back = (OpenGl_GlCore44Back* )(&(*myFuncs));
+ }
#endif
}
// function : BindProgram
// purpose :
// =======================================================================
-void OpenGl_Context::BindProgram (const Handle(OpenGl_ShaderProgram)& theProgram)
+Standard_Boolean OpenGl_Context::BindProgram (const Handle(OpenGl_ShaderProgram)& theProgram)
{
+ if (core20fwd == NULL)
+ {
+ return Standard_False;
+ }
+
if (theProgram.IsNull()
|| !theProgram->IsValid())
{
core20fwd->glUseProgram (OpenGl_ShaderProgram::NO_PROGRAM);
myActiveProgram.Nullify();
}
- return;
+ return Standard_False;
}
myActiveProgram = theProgram;
core20fwd->glUseProgram (theProgram->ProgramId());
+ return Standard_True;
+}
+
+// =======================================================================
+// function : BindDefaultVao
+// purpose :
+// =======================================================================
+void OpenGl_Context::BindDefaultVao()
+{
+#if !defined(GL_ES_VERSION_2_0)
+ if (myDefaultVao == 0
+ || core32 == NULL)
+ {
+ return;
+ }
+
+ core32->glBindVertexArray (myDefaultVao);
+#endif
+}
+
+// =======================================================================
+// function : SetDefaultFrameBuffer
+// purpose :
+// =======================================================================
+Handle(OpenGl_FrameBuffer) OpenGl_Context::SetDefaultFrameBuffer (const Handle(OpenGl_FrameBuffer)& theFbo)
+{
+ Handle(OpenGl_FrameBuffer) aFbo = myDefaultFbo;
+ myDefaultFbo = theFbo;
+ return aFbo;
+}
+
+// =======================================================================
+// function : SetColor4fv
+// purpose :
+// =======================================================================
+void OpenGl_Context::SetColor4fv (const OpenGl_Vec4& theColor)
+{
+ if (!myActiveProgram.IsNull())
+ {
+ myActiveProgram->SetUniform (this, myActiveProgram->GetStateLocation (OpenGl_OCCT_COLOR), theColor);
+ }
+#if !defined(GL_ES_VERSION_2_0)
+ else if (core11 != NULL)
+ {
+ core11->glColor4fv (theColor.GetData());
+ }
+#endif
+}
+
+// =======================================================================
+// function : SetTypeOfLine
+// purpose :
+// =======================================================================
+void OpenGl_Context::SetTypeOfLine (const Aspect_TypeOfLine theType,
+ const Standard_ShortReal theFactor)
+{
+ Standard_Integer aPattern = 0xFFFF;
+ switch (theType)
+ {
+ case Aspect_TOL_DASH:
+ {
+ aPattern = 0xFFC0;
+ break;
+ }
+ case Aspect_TOL_DOT:
+ {
+ aPattern = 0xCCCC;
+ break;
+ }
+ case Aspect_TOL_DOTDASH:
+ {
+ aPattern = 0xFF18;
+ break;
+ }
+ case Aspect_TOL_SOLID:
+ {
+ aPattern = 0xFFFF;
+ break;
+ }
+ case Aspect_TOL_USERDEFINED:
+ {
+ aPattern = 0xFF24;
+ break;
+ }
+ }
+
+ if (!myActiveProgram.IsNull())
+ {
+ myActiveProgram->SetUniform (this, "uPattern", aPattern);
+ myActiveProgram->SetUniform (this, "uFactor", theFactor);
+ return;
+ }
+
+#if !defined(GL_ES_VERSION_2_0)
+ if (theType != Aspect_TOL_SOLID)
+ {
+ #ifdef HAVE_GL2PS
+ if (IsFeedback())
+ {
+ gl2psEnable (GL2PS_LINE_STIPPLE);
+ }
+ #endif
+
+ if (core11 != NULL)
+ {
+ core11fwd->glEnable (GL_LINE_STIPPLE);
+
+ core11->glLineStipple (static_cast<GLint> (theFactor),
+ static_cast<GLushort> (aPattern));
+ }
+ }
+ else
+ {
+ if (core11 != NULL)
+ {
+ core11fwd->glDisable (GL_LINE_STIPPLE);
+ }
+
+ #ifdef HAVE_GL2PS
+ if (IsFeedback())
+ {
+ gl2psDisable (GL2PS_LINE_STIPPLE);
+ }
+ #endif
+ }
+#endif
+}
+
+// =======================================================================
+// function : SetLineWidth
+// purpose :
+// =======================================================================
+void OpenGl_Context::SetLineWidth (const Standard_ShortReal theWidth)
+{
+ if (core11 != NULL)
+ {
+ // glLineWidth() is still defined within Core Profile, but has no effect with values != 1.0f
+ core11fwd->glLineWidth (theWidth);
+ }
+#ifdef HAVE_GL2PS
+ if (IsFeedback())
+ {
+ gl2psLineWidth (theWidth);
+ }
+#endif
+}
+
+// =======================================================================
+// function : SetTextureMatrix
+// purpose :
+// =======================================================================
+void OpenGl_Context::SetTextureMatrix (const Handle(Graphic3d_TextureParams)& theParams)
+{
+ if (theParams.IsNull())
+ {
+ return;
+ }
+ else if (!myActiveProgram.IsNull())
+ {
+ const GLint aUniLoc = myActiveProgram->GetStateLocation (OpenGl_OCCT_TEXTURE_TRSF2D);
+ if (aUniLoc == OpenGl_ShaderProgram::INVALID_LOCATION)
+ {
+ return;
+ }
+
+ // pack transformation parameters
+ OpenGl_Vec4 aTrsf[2];
+ aTrsf[0].xy() = theParams->Translation();
+ aTrsf[0].zw() = theParams->Scale();
+ aTrsf[1].x() = std::sin (-theParams->Rotation() * static_cast<float> (M_PI / 180.0));
+ aTrsf[1].y() = std::cos (-theParams->Rotation() * static_cast<float> (M_PI / 180.0));
+ myActiveProgram->SetUniform (this, aUniLoc, 2, aTrsf);
+ return;
+ }
+
+#if !defined(GL_ES_VERSION_2_0)
+ if (core11 != NULL)
+ {
+ GLint aMatrixMode = GL_TEXTURE;
+ ::glGetIntegerv (GL_MATRIX_MODE, &aMatrixMode);
+
+ core11->glMatrixMode (GL_TEXTURE);
+ OpenGl_Mat4 aTextureMat;
+ const Graphic3d_Vec2& aScale = theParams->Scale();
+ const Graphic3d_Vec2& aTrans = theParams->Translation();
+ Graphic3d_TransformUtils::Scale (aTextureMat, aScale.x(), aScale.y(), 1.0f);
+ Graphic3d_TransformUtils::Translate (aTextureMat, -aTrans.x(), -aTrans.y(), 0.0f);
+ Graphic3d_TransformUtils::Rotate (aTextureMat, -theParams->Rotation(), 0.0f, 0.0f, 1.0f);
+ core11->glLoadMatrixf (aTextureMat);
+ core11->glMatrixMode (aMatrixMode);
+ }
+#endif
+}
+
+// =======================================================================
+// function : SetPointSize
+// purpose :
+// =======================================================================
+void OpenGl_Context::SetPointSize (const Standard_ShortReal theSize)
+{
+ if (!myActiveProgram.IsNull())
+ {
+ myActiveProgram->SetUniform (this, myActiveProgram->GetStateLocation (OpenGl_OCCT_POINT_SIZE), theSize);
+ #if !defined(GL_ES_VERSION_2_0)
+ //myContext->core11fwd->glEnable (GL_VERTEX_PROGRAM_POINT_SIZE);
+ #endif
+ }
+#if !defined(GL_ES_VERSION_2_0)
+ //else
+ {
+ core11fwd->glPointSize (theSize);
+ if (core20fwd != NULL)
+ {
+ //myContext->core11fwd->glDisable (GL_VERTEX_PROGRAM_POINT_SIZE);
+ }
+ }
+#endif
+}
+
+// =======================================================================
+// function : SetGlNormalizeEnabled
+// purpose :
+// =======================================================================
+Standard_Boolean OpenGl_Context::SetGlNormalizeEnabled (Standard_Boolean isEnabled)
+{
+ if (isEnabled == myIsGlNormalizeEnabled)
+ {
+ return myIsGlNormalizeEnabled;
+ }
+
+ Standard_Boolean anOldGlNormalize = myIsGlNormalizeEnabled;
+
+ myIsGlNormalizeEnabled = isEnabled;
+
+#if !defined(GL_ES_VERSION_2_0)
+ if (core11 != NULL)
+ {
+ if (isEnabled)
+ {
+ ::glEnable (GL_NORMALIZE);
+ }
+ else
+ {
+ ::glDisable (GL_NORMALIZE);
+ }
+ }
+#endif
+
+ return anOldGlNormalize;
+}
+
+// =======================================================================
+// function : ApplyModelWorldMatrix
+// purpose :
+// =======================================================================
+void OpenGl_Context::ApplyModelWorldMatrix()
+{
+#if !defined(GL_ES_VERSION_2_0)
+ if (core11 != NULL)
+ {
+ core11->glMatrixMode (GL_MODELVIEW);
+ core11->glLoadMatrixf (ModelWorldState.Current());
+ }
+#endif
+
+ if (!myShaderManager->IsEmpty())
+ {
+ myShaderManager->UpdateModelWorldStateTo (ModelWorldState.Current());
+ }
+}
+
+// =======================================================================
+// function : ApplyWorldViewMatrix
+// purpose :
+// =======================================================================
+void OpenGl_Context::ApplyWorldViewMatrix()
+{
+#if !defined(GL_ES_VERSION_2_0)
+ if (core11 != NULL)
+ {
+ core11->glMatrixMode (GL_MODELVIEW);
+ core11->glLoadMatrixf (WorldViewState.Current());
+ }
+#endif
+
+ if (!myShaderManager->IsEmpty())
+ {
+ myShaderManager->UpdateWorldViewStateTo (WorldViewState.Current());
+ }
+}
+
+// =======================================================================
+// function : ApplyModelViewMatrix
+// purpose :
+// =======================================================================
+void OpenGl_Context::ApplyModelViewMatrix()
+{
+#if !defined(GL_ES_VERSION_2_0)
+ if (core11 != NULL)
+ {
+ OpenGl_Mat4 aModelView = WorldViewState.Current() * ModelWorldState.Current();
+ core11->glMatrixMode (GL_MODELVIEW);
+ core11->glLoadMatrixf (aModelView.GetData());
+ }
+#endif
+
+ if (!myShaderManager->IsEmpty())
+ {
+ myShaderManager->UpdateModelWorldStateTo (ModelWorldState.Current());
+ myShaderManager->UpdateWorldViewStateTo (WorldViewState.Current());
+ }
+}
+
+// =======================================================================
+// function : ApplyProjectionMatrix
+// purpose :
+// =======================================================================
+void OpenGl_Context::ApplyProjectionMatrix()
+{
+#if !defined(GL_ES_VERSION_2_0)
+ if (core11 != NULL)
+ {
+ core11->glMatrixMode (GL_PROJECTION);
+ core11->glLoadMatrixf (ProjectionState.Current().GetData());
+ }
+#endif
+
+ if (!myShaderManager->IsEmpty())
+ {
+ myShaderManager->UpdateProjectionStateTo (ProjectionState.Current());
+ }
+}
+
+
+// =======================================================================
+// function : EnableFeatures
+// purpose :
+// =======================================================================
+void OpenGl_Context::EnableFeatures() const
+{
+ //
+}
+
+// =======================================================================
+// function : DisableFeatures
+// purpose :
+// =======================================================================
+void OpenGl_Context::DisableFeatures() const
+{
+#if !defined(GL_ES_VERSION_2_0)
+ glPixelTransferi (GL_MAP_COLOR, GL_FALSE);
+#endif
+
+ /*
+ * Disable stuff that's likely to slow down glDrawPixels.
+ * (Omit as much of this as possible, when you know in advance
+ * that the OpenGL state will already be set correctly.)
+ */
+ glDisable(GL_DITHER);
+ glDisable(GL_BLEND);
+ glDisable(GL_DEPTH_TEST);
+ glDisable(GL_TEXTURE_2D);
+ glDisable(GL_STENCIL_TEST);
+
+#if !defined(GL_ES_VERSION_2_0)
+ glDisable(GL_LIGHTING);
+ glDisable(GL_ALPHA_TEST);
+ glDisable(GL_FOG);
+ glDisable(GL_LOGIC_OP);
+ glDisable(GL_TEXTURE_1D);
+
+ glPixelTransferi(GL_MAP_COLOR, GL_FALSE);
+ glPixelTransferi(GL_RED_SCALE, 1);
+ glPixelTransferi(GL_RED_BIAS, 0);
+ glPixelTransferi(GL_GREEN_SCALE, 1);
+ glPixelTransferi(GL_GREEN_BIAS, 0);
+ glPixelTransferi(GL_BLUE_SCALE, 1);
+ glPixelTransferi(GL_BLUE_BIAS, 0);
+ glPixelTransferi(GL_ALPHA_SCALE, 1);
+ glPixelTransferi(GL_ALPHA_BIAS, 0);
+
+ /*
+ * Disable extensions that could slow down glDrawPixels.
+ * (Actually, you should check for the presence of the proper
+ * extension before making these calls. I've omitted that
+ * code for simplicity.)
+ */
+
+ if ((myGlVerMajor >= 1) && (myGlVerMinor >= 2))
+ {
+#ifdef GL_EXT_convolution
+ if (CheckExtension ("GL_CONVOLUTION_1D_EXT"))
+ glDisable(GL_CONVOLUTION_1D_EXT);
+
+ if (CheckExtension ("GL_CONVOLUTION_2D_EXT"))
+ glDisable(GL_CONVOLUTION_2D_EXT);
+
+ if (CheckExtension ("GL_SEPARABLE_2D_EXT"))
+ glDisable(GL_SEPARABLE_2D_EXT);
+#endif
+
+#ifdef GL_EXT_histogram
+ if (CheckExtension ("GL_SEPARABLE_2D_EXT"))
+ glDisable(GL_HISTOGRAM_EXT);
+
+ if (CheckExtension ("GL_MINMAX_EXT"))
+ glDisable(GL_MINMAX_EXT);
+#endif
+
+#ifdef GL_EXT_texture3D
+ if (CheckExtension ("GL_TEXTURE_3D_EXT"))
+ glDisable(GL_TEXTURE_3D_EXT);
+#endif
+ }
+#endif
}
projects / occt.git / blobdiff