#include <OpenGl_ArbDbg.hxx>
#include <OpenGl_ArbFBO.hxx>
#include <OpenGl_ExtGS.hxx>
+#include <OpenGl_ArbSamplerObject.hxx>
#include <OpenGl_ArbTexBindless.hxx>
-#include <OpenGl_GlCore44.hxx>
+#include <OpenGl_GlCore45.hxx>
#include <OpenGl_FrameBuffer.hxx>
+#include <OpenGl_FrameStats.hxx>
#include <OpenGl_Sampler.hxx>
#include <OpenGl_ShaderManager.hxx>
+#include <OpenGl_TextureSetPairIterator.hxx>
#include <OpenGl_Workspace.hxx>
-#include <OpenGl_AspectFace.hxx>
+#include <OpenGl_Aspects.hxx>
+
#include <Graphic3d_TransformUtils.hxx>
#include <Graphic3d_RenderingParams.hxx>
-
+#include <Image_SupportedFormats.hxx>
#include <Message_Messenger.hxx>
-
#include <NCollection_Vector.hxx>
-
#include <Standard_ProgramError.hxx>
+#include <Standard_WarningDisableFunctionCast.hxx>
IMPLEMENT_STANDARD_RTTIEXT(OpenGl_Context,Standard_Transient)
#include <GL/glx.h> // glXGetProcAddress()
#endif
-#ifdef HAVE_GL2PS
- #include <gl2ps.h>
- #ifdef _MSC_VER
- #pragma comment (lib, "gl2ps.lib")
- #endif
-#endif
+#ifdef __EMSCRIPTEN__
+ #include <emscripten.h>
+ #include <emscripten/html5.h>
+ //! Check if WebGL extension is available and activate it
+ //! (usage of extension without activation will generate errors).
+ static bool checkEnableWebGlExtension (const OpenGl_Context& theCtx,
+ const char* theExtName)
+ {
+ if (!theCtx.CheckExtension (theExtName))
+ {
+ return false;
+ }
+ if (EMSCRIPTEN_WEBGL_CONTEXT_HANDLE aWebGlCtx = emscripten_webgl_get_current_context())
+ {
+ if (emscripten_webgl_enable_extension (aWebGlCtx, theExtName))
+ {
+ return true;
+ }
+ }
+ return false;
+ }
+#endif
namespace
{
core15fwd (NULL),
core20 (NULL),
core20fwd (NULL),
+ core30 (NULL),
+ core30fwd (NULL),
core32 (NULL),
core32back (NULL),
core33 (NULL),
core43back (NULL),
core44 (NULL),
core44back (NULL),
+ core45 (NULL),
+ core45back (NULL),
caps (!theCaps.IsNull() ? theCaps : new OpenGl_Caps()),
+ hasGetBufferData (Standard_False),
#if defined(GL_ES_VERSION_2_0)
hasHighp (Standard_False),
hasUintIndex(Standard_False),
hasUintIndex(Standard_True),
hasTexRGBA8(Standard_True),
#endif
+ hasTexFloatLinear (Standard_False),
+ hasTexSRGB (Standard_False),
+ hasFboSRGB (Standard_False),
+ hasSRGBControl (Standard_False),
+#if defined(GL_ES_VERSION_2_0)
+ hasFlatShading (OpenGl_FeatureNotAvailable),
+#else
+ hasFlatShading (OpenGl_FeatureInCore),
+#endif
+ hasGlslBitwiseOps (OpenGl_FeatureNotAvailable),
hasDrawBuffers (OpenGl_FeatureNotAvailable),
hasFloatBuffer (OpenGl_FeatureNotAvailable),
hasHalfFloatBuffer (OpenGl_FeatureNotAvailable),
hasSampleVariables (OpenGl_FeatureNotAvailable),
+ hasGeometryStage (OpenGl_FeatureNotAvailable),
arbDrawBuffers (Standard_False),
arbNPTW (Standard_False),
arbTexRG (Standard_False),
arbTexFloat (Standard_False),
+ arbSamplerObject (NULL),
arbTexBindless (NULL),
arbTBO (NULL),
arbTboRGB32 (Standard_False),
atiMem (Standard_False),
nvxMem (Standard_False),
oesSampleVariables (Standard_False),
+ oesStdDerivatives (Standard_False),
mySharedResources (new OpenGl_ResourcesMap()),
myDelayed (new OpenGl_DelayReleaseMap()),
myUnusedResources (new OpenGl_ResourcesStack()),
myClippingState (),
myGlLibHandle (NULL),
myFuncs (new OpenGl_GlFunctions()),
+ mySupportedFormats (new Image_SupportedFormats()),
myAnisoMax (1),
myTexClamp (GL_CLAMP_TO_EDGE),
myMaxTexDim (1024),
+ myMaxTexCombined (1),
+ myMaxTexUnitsFFP (1),
+ myMaxDumpSizeX (1024),
+ myMaxDumpSizeY (1024),
myMaxClipPlanes (6),
myMaxMsaaSamples(0),
myMaxDrawBuffers (1),
myIsInitialized (Standard_False),
myIsStereoBuffers (Standard_False),
myIsGlNormalizeEnabled (Standard_False),
+ mySpriteTexUnit (Graphic3d_TextureUnit_PointSprite),
myHasRayTracing (Standard_False),
myHasRayTracingTextures (Standard_False),
myHasRayTracingAdaptiveSampling (Standard_False),
+ myHasRayTracingAdaptiveSamplingAtomic (Standard_False),
+ myHasPBR (Standard_False),
+ myPBREnvLUTTexUnit (Graphic3d_TextureUnit_PbrEnvironmentLUT),
+ myPBRDiffIBLMapSHTexUnit (Graphic3d_TextureUnit_PbrIblDiffuseSH),
+ myPBRSpecIBLMapTexUnit (Graphic3d_TextureUnit_PbrIblSpecular),
+ myFrameStats (new OpenGl_FrameStats()),
+ myActiveMockTextures (0),
#if !defined(GL_ES_VERSION_2_0)
myPointSpriteOrig (GL_UPPER_LEFT),
myRenderMode (GL_RENDER),
+ myShadeModel (GL_SMOOTH),
myPolygonMode (GL_FILL),
#else
myPointSpriteOrig (0),
myRenderMode (0),
+ myShadeModel (0),
myPolygonMode (0),
#endif
myToCullBackFaces (false),
myReadBuffer (0),
- myDrawBuffers (1),
+ myDrawBuffers (0, 7),
myDefaultVao (0),
- myIsGlDebugCtx (Standard_False),
+ myColorMask (true),
+ myAlphaToCoverage (false),
+ myIsGlDebugCtx (false),
+ myIsSRgbWindow (false),
myResolution (Graphic3d_RenderingParams::THE_DEFAULT_RESOLUTION),
myResolutionRatio (1.0f),
myLineWidthScale (1.0f),
+ myLineFeather (1.0f),
myRenderScale (1.0f),
myRenderScaleInv (1.0f)
{
myViewportVirt[2] = 0;
myViewportVirt[3] = 0;
+ myPolygonOffset.Mode = Aspect_POM_Off;
+ myPolygonOffset.Factor = 0.0f;
+ myPolygonOffset.Units = 0.0f;
+
// system-dependent fields
#if defined(HAVE_EGL)
myDisplay = (Aspect_Display )EGL_NO_DISPLAY;
myDefaultVao = 0;
#endif
+ // release mock textures
+ if (!myTextureRgbaBlack.IsNull())
+ {
+ myTextureRgbaBlack->Release (this);
+ myTextureRgbaBlack.Nullify();
+ }
+ if (!myTextureRgbaWhite.IsNull())
+ {
+ myTextureRgbaWhite->Release (this);
+ myTextureRgbaWhite.Nullify();
+ }
+
// release default FBO
if (!myDefaultFbo.IsNull())
{
mySharedResources.Nullify();
myDelayed.Nullify();
- // release sampler object
- if (!myTexSampler.IsNull())
- {
- myTexSampler->Release (this);
- }
-
if (arbDbg != NULL
&& myIsGlDebugCtx
&& IsValid())
}
::glDrawBuffer (aDrawBuffer);
- myDrawBuffers.Clear();
-
- if (aDrawBuffer != GL_NONE)
- {
- myDrawBuffers.SetValue (0, aDrawBuffer);
- }
+ myDrawBuffers.Init (GL_NONE);
+ myDrawBuffers.SetValue (0, aDrawBuffer);
#else
(void )theDrawBuffer;
#endif
{
Standard_ASSERT_RETURN (hasDrawBuffers, "Multiple draw buffers feature is not supported by the context", Standard_ASSERT_DO_NOTHING());
- myDrawBuffers.Clear();
+ if (myDrawBuffers.Length() < theNb)
+ {
+ // should actually never happen here
+ myDrawBuffers.Resize (0, theNb - 1, false);
+ }
+ myDrawBuffers.Init (GL_NONE);
Standard_Boolean useDefaultFbo = Standard_False;
for (Standard_Integer anI = 0; anI < theNb; ++anI)
{
-#if !defined(GL_ES_VERSION_2_0)
- const Standard_Integer aDrawBuffer = !myIsStereoBuffers ? stereoToMonoBuffer (theDrawBuffers[anI]) : theDrawBuffers[anI];
-#else
- const Standard_Integer aDrawBuffer = theDrawBuffers[anI];
-#endif
- if (aDrawBuffer < GL_COLOR_ATTACHMENT0 && aDrawBuffer != GL_NONE)
+ if (theDrawBuffers[anI] < GL_COLOR_ATTACHMENT0 && theDrawBuffers[anI] != GL_NONE)
{
useDefaultFbo = Standard_True;
}
- else if (aDrawBuffer != GL_NONE)
+ else
{
- myDrawBuffers.SetValue (anI, aDrawBuffer);
+ myDrawBuffers.SetValue (anI, theDrawBuffers[anI]);
}
}
if (arbFBO != NULL && useDefaultFbo)
myFuncs->glDrawBuffers (theNb, (const GLenum*)theDrawBuffers);
}
+// =======================================================================
+// function : SetFrameBufferSRGB
+// purpose :
+// =======================================================================
+void OpenGl_Context::SetFrameBufferSRGB (bool theIsFbo, bool theIsFboSRgb)
+{
+ if (!hasFboSRGB)
+ {
+ myIsSRgbActive = false;
+ return;
+ }
+ myIsSRgbActive = ToRenderSRGB()
+ && (theIsFbo || myIsSRgbWindow)
+ && theIsFboSRgb;
+ if (!hasSRGBControl)
+ {
+ return;
+ }
+
+ if (myIsSRgbActive)
+ {
+ core11fwd->glEnable (GL_FRAMEBUFFER_SRGB);
+ }
+ else
+ {
+ core11fwd->glDisable (GL_FRAMEBUFFER_SRGB);
+ }
+}
+
// =======================================================================
// function : SetCullBackFaces
// purpose :
if (core11 != NULL)
{
::glGetIntegerv (GL_RENDER_MODE, &myRenderMode);
+ ::glGetIntegerv (GL_SHADE_MODEL, &myShadeModel);
}
// cache read buffers state
::glGetIntegerv (GL_READ_BUFFER, &myReadBuffer);
// cache draw buffers state
- myDrawBuffers.Clear();
+ if (myDrawBuffers.Length() < myMaxDrawBuffers)
+ {
+ myDrawBuffers.Resize (0, myMaxDrawBuffers - 1, false);
+ }
+ myDrawBuffers.Init (GL_NONE);
+ Standard_Integer aDrawBuffer = GL_NONE;
if (myMaxDrawBuffers == 1)
{
- Standard_Integer aDrawBuffer;
-
::glGetIntegerv (GL_DRAW_BUFFER, &aDrawBuffer);
-
- if (aDrawBuffer != GL_NONE)
- {
- myDrawBuffers.SetValue (0, aDrawBuffer);
- }
+ myDrawBuffers.SetValue (0, aDrawBuffer);
}
else
{
- Standard_Integer aDrawBuffer;
-
for (Standard_Integer anI = 0; anI < myMaxDrawBuffers; ++anI)
{
::glGetIntegerv (GL_DRAW_BUFFER0 + anI, &aDrawBuffer);
-
- if (aDrawBuffer != GL_NONE)
- {
- myDrawBuffers.SetValue (anI, aDrawBuffer);
- }
+ myDrawBuffers.SetValue (anI, aDrawBuffer);
}
}
#endif
{
#if defined(HAVE_EGL)
if ((EGLDisplay )myDisplay == EGL_NO_DISPLAY
- || (EGLSurface )myWindow == EGL_NO_SURFACE
|| (EGLContext )myGContext == EGL_NO_CONTEXT)
{
return Standard_False;
{
#if defined(HAVE_EGL)
if ((EGLDisplay )myDisplay == EGL_NO_DISPLAY
- || (EGLSurface )myWindow == EGL_NO_SURFACE
|| (EGLContext )myGContext == EGL_NO_CONTEXT)
{
Standard_ProgramError_Raise_if (myIsInitialized, "OpenGl_Context::Init() should be called before!");
#endif
return Standard_False;
}
+ else if (caps->contextNoExtensions)
+ {
+ return Standard_False;
+ }
#if !defined(GL_ES_VERSION_2_0)
// available since OpenGL 3.0
theGlVerMajor = 0;
theGlVerMinor = 0;
-#ifdef GL_MAJOR_VERSION
- // available since OpenGL 3.0 and OpenGL 3.0 ES
- GLint aMajor = 0, aMinor = 0;
- glGetIntegerv (GL_MAJOR_VERSION, &aMajor);
- glGetIntegerv (GL_MINOR_VERSION, &aMinor);
- // glGetError() sometimes does not report an error here even if
- // GL does not know GL_MAJOR_VERSION and GL_MINOR_VERSION constants.
- // 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)
- {
- theGlVerMajor = aMajor;
- theGlVerMinor = aMinor;
- return;
- }
- for (GLenum anErr = ::glGetError(), aPrevErr = GL_NO_ERROR;; aPrevErr = anErr, anErr = ::glGetError())
+ bool toCheckVer3 = true;
+#if defined(__EMSCRIPTEN__)
+ // WebGL 1.0 prints annoying invalid enumeration warnings to console.
+ toCheckVer3 = false;
+ if (EMSCRIPTEN_WEBGL_CONTEXT_HANDLE aWebGlCtx = emscripten_webgl_get_current_context())
{
- if (anErr == GL_NO_ERROR
- || anErr == aPrevErr)
+ EmscriptenWebGLContextAttributes anAttribs = {};
+ if (emscripten_webgl_get_context_attributes (aWebGlCtx, &anAttribs) == EMSCRIPTEN_RESULT_SUCCESS)
{
- break;
+ toCheckVer3 = anAttribs.majorVersion >= 2;
}
}
#endif
+ // Available since OpenGL 3.0 and OpenGL ES 3.0.
+ if (toCheckVer3)
+ {
+ GLint aMajor = 0, aMinor = 0;
+ glGetIntegerv (GL_MAJOR_VERSION, &aMajor);
+ glGetIntegerv (GL_MINOR_VERSION, &aMinor);
+ // glGetError() sometimes does not report an error here even if
+ // GL does not know GL_MAJOR_VERSION and GL_MINOR_VERSION constants.
+ // 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)
+ {
+ theGlVerMajor = aMajor;
+ theGlVerMinor = aMinor;
+ return;
+ }
+ for (GLenum anErr = ::glGetError(), aPrevErr = GL_NO_ERROR;; aPrevErr = anErr, anErr = ::glGetError())
+ {
+ if (anErr == GL_NO_ERROR
+ || anErr == aPrevErr)
+ {
+ break;
+ }
+ }
+ }
+
// Read version string.
// Notice that only first two numbers split by point '2.1 XXXXX' are significant.
// Following trash (after space) is vendor-specific.
// function : checkWrongVersion
// purpose :
// ======================================================================
-void OpenGl_Context::checkWrongVersion (const Standard_Integer theGlVerMajor,
- const Standard_Integer theGlVerMinor)
+void OpenGl_Context::checkWrongVersion (Standard_Integer theGlVerMajor, Standard_Integer theGlVerMinor,
+ const char* theLastFailedProc)
{
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,
- GL_DEBUG_TYPE_ERROR,
- 0,
- GL_DEBUG_SEVERITY_HIGH,
- aMsg);
+ PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_ERROR, 0, GL_DEBUG_SEVERITY_HIGH,
+ TCollection_AsciiString()
+ + "Error! OpenGL context reports version "
+ + myGlVerMajor + "." + myGlVerMinor
+ + " but does not export required functions for " + theGlVerMajor + "." + theGlVerMinor
+ + " (" + (theLastFailedProc != NULL ? theLastFailedProc : "") + ")\n"
+ + "Please report this issue to OpenGL driver vendor '" + myVendor + "'");
+
+ // lower internal version
+ if (theGlVerMinor > 0)
+ {
+ myGlVerMajor = theGlVerMajor;
+ myGlVerMinor = theGlVerMinor - 1;
+ return;
+ }
+#if defined(GL_ES_VERSION_2_0)
+ switch (theGlVerMajor)
+ {
+ case 3: myGlVerMajor = 2; myGlVerMinor = 0; return;
+ }
+#else
+ switch (theGlVerMajor)
+ {
+ case 2: myGlVerMajor = 1; myGlVerMinor = 5; return;
+ case 3: myGlVerMajor = 2; myGlVerMinor = 1; return;
+ case 4: myGlVerMajor = 3; myGlVerMinor = 3; return;
+ }
+#endif
}
// =======================================================================
myMaxColorAttachments = 1;
ReadGlVersion (myGlVerMajor, myGlVerMinor);
myVendor = (const char* )::glGetString (GL_VENDOR);
+ myVendor.LowerCase();
+
+ // standard formats
+ mySupportedFormats->Clear();
+ mySupportedFormats->Add (Image_PixMap::ImgGray);
+ mySupportedFormats->Add (Image_PixMap::ImgAlpha);
+ mySupportedFormats->Add (Image_PixMap::ImgRGB);
+ mySupportedFormats->Add (Image_PixMap::ImgRGB32);
+ mySupportedFormats->Add (Image_PixMap::ImgRGBA);
+
+ if (caps->contextMajorVersionUpper != -1)
+ {
+ // synthetically restrict OpenGL version for testing
+ Standard_Integer aCtxVer[2] = { myGlVerMajor, myGlVerMinor };
+ bool isLowered = false;
+ if (myGlVerMajor > caps->contextMajorVersionUpper)
+ {
+ isLowered = true;
+ myGlVerMajor = caps->contextMajorVersionUpper;
+ #if defined(GL_ES_VERSION_2_0)
+ switch (myGlVerMajor)
+ {
+ case 2: myGlVerMinor = 0; break;
+ }
+ #else
+ switch (myGlVerMajor)
+ {
+ case 1: myGlVerMinor = 5; break;
+ case 2: myGlVerMinor = 1; break;
+ case 3: myGlVerMinor = 3; break;
+ }
+ #endif
+ }
+ if (caps->contextMinorVersionUpper != -1
+ && myGlVerMinor > caps->contextMinorVersionUpper)
+ {
+ isLowered = true;
+ myGlVerMinor = caps->contextMinorVersionUpper;
+ }
+ if (isLowered)
+ {
+ PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_PORTABILITY, 0, GL_DEBUG_SEVERITY_MEDIUM,
+ TCollection_AsciiString ("OpenGL version ") + aCtxVer[0] + "." + aCtxVer[1]
+ + " has been lowered to " + myGlVerMajor + "." + myGlVerMinor);
+ }
+ }
+
if (!caps->ffpEnable
&& !IsGlGreaterEqual (2, 0))
{
const bool isCoreProfile = false;
#else
- if (myVendor.Search ("NVIDIA") != -1)
+ 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.
core15fwd = NULL;
core20 = NULL;
core20fwd = NULL;
+ core30 = NULL;
+ core30fwd = NULL;
core32 = NULL;
core32back = NULL;
core33 = NULL;
core43back = NULL;
core44 = NULL;
core44back = NULL;
+ core45 = NULL;
+ core45back = NULL;
arbTBO = NULL;
arbTboRGB32 = Standard_False;
arbIns = NULL;
extGS = NULL;
myDefaultVao = 0;
+ //! Make record shorter to retrieve function pointer using variable with same name
+ const char* aLastFailedProc = NULL;
+ #define FindProcShort(theFunc) FindProcVerbose(aLastFailedProc, #theFunc, myFuncs->theFunc)
+
#if defined(GL_ES_VERSION_2_0)
hasTexRGBA8 = IsGlGreaterEqual (3, 0)
|| CheckExtension ("GL_OES_rgb8_rgba8");
+ hasTexSRGB = IsGlGreaterEqual (3, 0);
+ hasFboSRGB = IsGlGreaterEqual (3, 0);
+ hasSRGBControl = CheckExtension ("GL_EXT_sRGB_write_control");
// 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)
extAnis = CheckExtension ("GL_EXT_texture_filter_anisotropic");
extPDS = IsGlGreaterEqual (3, 0)
|| CheckExtension ("GL_OES_packed_depth_stencil");
+#ifdef __EMSCRIPTEN__
+ if (!extPDS
+ && checkEnableWebGlExtension (*this, "GL_WEBGL_depth_texture"))
+ {
+ extPDS = true; // WebGL 1.0 extension (in WebGL 2.0 core)
+ }
+#endif
+
+ if (extBgra)
+ {
+ // no BGR on OpenGL ES - only BGRA as extension
+ mySupportedFormats->Add (Image_PixMap::ImgBGR32);
+ mySupportedFormats->Add (Image_PixMap::ImgBGRA);
+ }
core11fwd = (OpenGl_GlCore11Fwd* )(&(*myFuncs));
if (IsGlGreaterEqual (2, 0))
arbFBO = (OpenGl_ArbFBO* )(&(*myFuncs));
}
if (IsGlGreaterEqual (3, 0)
- && FindProc ("glBlitFramebuffer", myFuncs->glBlitFramebuffer))
+ && FindProcShort (glBlitFramebuffer))
{
arbFBOBlit = (OpenGl_ArbFBOBlit* )(&(*myFuncs));
}
+ if (IsGlGreaterEqual (3, 0)
+ && FindProcShort (glGenSamplers)
+ && FindProcShort (glDeleteSamplers)
+ && FindProcShort (glIsSampler)
+ && FindProcShort (glBindSampler)
+ && FindProcShort (glSamplerParameteri)
+ && FindProcShort (glSamplerParameteriv)
+ && FindProcShort (glSamplerParameterf)
+ && FindProcShort (glSamplerParameterfv)
+ && FindProcShort (glGetSamplerParameteriv)
+ && FindProcShort (glGetSamplerParameterfv))
+ //&& FindProcShort (glSamplerParameterIiv) // only on Desktop or with extensions GL_OES_texture_border_clamp/GL_EXT_texture_border_clamp
+ //&& FindProcShort (glSamplerParameterIuiv)
+ //&& FindProcShort (glGetSamplerParameterIiv)
+ //&& FindProcShort (glGetSamplerParameterIuiv))
+ {
+ arbSamplerObject = (OpenGl_ArbSamplerObject* )(&(*myFuncs));
+ }
extFragDepth = !IsGlGreaterEqual(3, 0)
&& CheckExtension ("GL_EXT_frag_depth");
if (IsGlGreaterEqual (3, 1)
- && FindProc ("glTexStorage2DMultisample", myFuncs->glTexStorage2DMultisample))
+ && FindProcShort (glTexStorage2DMultisample))
{
// MSAA RenderBuffers have been defined in OpenGL ES 3.0,
// but MSAA Textures - only in OpenGL ES 3.1+
hasHighp = Standard_True;
}
- arbTexFloat = IsGlGreaterEqual (3, 0)
- && FindProc ("glTexImage3D", myFuncs->glTexImage3D);
-
- const Standard_Boolean hasTexBuffer32 = IsGlGreaterEqual (3, 2) && FindProc ("glTexBuffer", myFuncs->glTexBuffer);
- const Standard_Boolean hasExtTexBuffer = CheckExtension ("GL_EXT_texture_buffer") && FindProc ("glTexBufferEXT", myFuncs->glTexBuffer);
+ arbTexFloat = (IsGlGreaterEqual (3, 0)
+ && FindProcShort (glTexImage3D))
+ || CheckExtension ("GL_OES_texture_float");
+ hasTexFloatLinear = arbTexFloat
+ && CheckExtension ("GL_OES_texture_float_linear");
+ const bool hasTexBuffer32 = IsGlGreaterEqual (3, 2) && FindProcShort (glTexBuffer);
+ const bool hasExtTexBuffer = CheckExtension ("GL_EXT_texture_buffer") && FindProc ("glTexBufferEXT", myFuncs->glTexBuffer);
if (hasTexBuffer32 || hasExtTexBuffer)
{
arbTBO = reinterpret_cast<OpenGl_ArbTBO*> (myFuncs.get());
}
- // initialize debug context extension
- if (CheckExtension ("GL_KHR_debug"))
+ bool hasInstanced = IsGlGreaterEqual (3, 0)
+ && FindProcShort (glVertexAttribDivisor)
+ && FindProcShort (glDrawArraysInstanced)
+ && FindProcShort (glDrawElementsInstanced);
+ if (!hasInstanced)
{
- // this functionality become a part of OpenGL ES 3.2
- arbDbg = NULL;
- // According to GL_KHR_debug spec, all functions should have KHR suffix.
- // However, some implementations can export these functions without suffix.
- if (FindProc ("glDebugMessageControlKHR", myFuncs->glDebugMessageControl)
- && FindProc ("glDebugMessageInsertKHR", myFuncs->glDebugMessageInsert)
- && FindProc ("glDebugMessageCallbackKHR", myFuncs->glDebugMessageCallback)
- && FindProc ("glGetDebugMessageLogKHR", myFuncs->glGetDebugMessageLog))
- {
- arbDbg = (OpenGl_ArbDbg* )(&(*myFuncs));
- }
-
- if (arbDbg != NULL
- && caps->contextDebug)
- {
- // setup default callback
- myIsGlDebugCtx = Standard_True;
- arbDbg->glDebugMessageCallback (debugCallbackWrap, this);
- ::glEnable (GL_DEBUG_OUTPUT);
- if (caps->contextSyncDebug)
- {
- // note that some broken implementations (e.g. simulators) might generate error message on this call
- ::glEnable (GL_DEBUG_OUTPUT_SYNCHRONOUS);
- }
- }
+ hasInstanced = CheckExtension ("GL_ANGLE_instanced_arrays")
+ && FindProc ("glVertexAttribDivisorANGLE", myFuncs->glVertexAttribDivisor)
+ && FindProc ("glDrawArraysInstancedANGLE", myFuncs->glDrawArraysInstanced)
+ && FindProc ("glDrawElementsInstancedANGLE", myFuncs->glDrawElementsInstanced);
+ }
+ if (hasInstanced)
+ {
+ arbIns = (OpenGl_ArbIns* )(&(*myFuncs));
}
- extDrawBuffers = CheckExtension ("GL_EXT_draw_buffers") && FindProc ("glDrawBuffersEXT", myFuncs->glDrawBuffers);
- arbDrawBuffers = CheckExtension ("GL_ARB_draw_buffers") && FindProc ("glDrawBuffersARB", myFuncs->glDrawBuffers);
+ const bool hasVAO = IsGlGreaterEqual (3, 0)
+ && FindProcShort (glBindVertexArray)
+ && FindProcShort (glDeleteVertexArrays)
+ && FindProcShort (glGenVertexArrays)
+ && FindProcShort (glIsVertexArray);
+ const bool hasMapBufferRange = IsGlGreaterEqual (3, 0)
+ && FindProcShort (glMapBufferRange)
+ && FindProcShort (glFlushMappedBufferRange);
- if (IsGlGreaterEqual (3, 0) && FindProc ("glDrawBuffers", myFuncs->glDrawBuffers))
+ // load OpenGL ES 3.0 new functions
+ const bool has30es = IsGlGreaterEqual (3, 0)
+ && hasVAO
+ && hasMapBufferRange
+ && hasInstanced
+ && arbSamplerObject != NULL
+ && arbFBOBlit != NULL
+ && FindProcShort (glReadBuffer)
+ && FindProcShort (glDrawRangeElements)
+ && FindProcShort (glTexImage3D)
+ && FindProcShort (glTexSubImage3D)
+ && FindProcShort (glCopyTexSubImage3D)
+ && FindProcShort (glCompressedTexImage3D)
+ && FindProcShort (glCompressedTexSubImage3D)
+ && FindProcShort (glGenQueries)
+ && FindProcShort (glDeleteQueries)
+ && FindProcShort (glIsQuery)
+ && FindProcShort (glBeginQuery)
+ && FindProcShort (glEndQuery)
+ && FindProcShort (glGetQueryiv)
+ && FindProcShort (glGetQueryObjectuiv)
+ && FindProcShort (glUnmapBuffer)
+ && FindProcShort (glGetBufferPointerv)
+ && FindProcShort (glDrawBuffers)
+ && FindProcShort (glUniformMatrix2x3fv)
+ && FindProcShort (glUniformMatrix3x2fv)
+ && FindProcShort (glUniformMatrix2x4fv)
+ && FindProcShort (glUniformMatrix4x2fv)
+ && FindProcShort (glUniformMatrix3x4fv)
+ && FindProcShort (glUniformMatrix4x3fv)
+ && FindProcShort (glRenderbufferStorageMultisample)
+ && FindProcShort (glFramebufferTextureLayer)
+ && FindProcShort (glGetIntegeri_v)
+ && FindProcShort (glBeginTransformFeedback)
+ && FindProcShort (glEndTransformFeedback)
+ && FindProcShort (glBindBufferRange)
+ && FindProcShort (glBindBufferBase)
+ && FindProcShort (glTransformFeedbackVaryings)
+ && FindProcShort (glGetTransformFeedbackVarying)
+ && FindProcShort (glVertexAttribIPointer)
+ && FindProcShort (glGetVertexAttribIiv)
+ && FindProcShort (glGetVertexAttribIuiv)
+ && FindProcShort (glVertexAttribI4i)
+ && FindProcShort (glVertexAttribI4ui)
+ && FindProcShort (glVertexAttribI4iv)
+ && FindProcShort (glVertexAttribI4uiv)
+ && FindProcShort (glGetUniformuiv)
+ && FindProcShort (glGetFragDataLocation)
+ && FindProcShort (glUniform1ui)
+ && FindProcShort (glUniform2ui)
+ && FindProcShort (glUniform3ui)
+ && FindProcShort (glUniform4ui)
+ && FindProcShort (glUniform1uiv)
+ && FindProcShort (glUniform2uiv)
+ && FindProcShort (glUniform3uiv)
+ && FindProcShort (glUniform4uiv)
+ && FindProcShort (glClearBufferiv)
+ && FindProcShort (glClearBufferuiv)
+ && FindProcShort (glClearBufferfv)
+ && FindProcShort (glClearBufferfi)
+ && FindProcShort (glGetStringi)
+ && FindProcShort (glCopyBufferSubData)
+ && FindProcShort (glGetUniformIndices)
+ && FindProcShort (glGetActiveUniformsiv)
+ && FindProcShort (glGetUniformBlockIndex)
+ && FindProcShort (glGetActiveUniformBlockiv)
+ && FindProcShort (glGetActiveUniformBlockName)
+ && FindProcShort (glUniformBlockBinding)
+ && FindProcShort (glFenceSync)
+ && FindProcShort (glIsSync)
+ && FindProcShort (glDeleteSync)
+ && FindProcShort (glClientWaitSync)
+ && FindProcShort (glWaitSync)
+ && FindProcShort (glGetInteger64v)
+ && FindProcShort (glGetSynciv)
+ && FindProcShort (glGetInteger64i_v)
+ && FindProcShort (glGetBufferParameteri64v)
+ && FindProcShort (glBindTransformFeedback)
+ && FindProcShort (glDeleteTransformFeedbacks)
+ && FindProcShort (glGenTransformFeedbacks)
+ && FindProcShort (glIsTransformFeedback)
+ && FindProcShort (glPauseTransformFeedback)
+ && FindProcShort (glResumeTransformFeedback)
+ && FindProcShort (glGetProgramBinary)
+ && FindProcShort (glProgramBinary)
+ && FindProcShort (glProgramParameteri)
+ && FindProcShort (glInvalidateFramebuffer)
+ && FindProcShort (glInvalidateSubFramebuffer)
+ && FindProcShort (glTexStorage2D)
+ && FindProcShort (glTexStorage3D)
+ && FindProcShort (glGetInternalformativ);
+ if (!has30es)
{
- hasDrawBuffers = OpenGl_FeatureInCore;
+ checkWrongVersion (3, 0, aLastFailedProc);
}
- else if (extDrawBuffers || arbDrawBuffers)
+ else
{
- hasDrawBuffers = OpenGl_FeatureInExtensions;
+ core30 = (OpenGl_GlCore30* )(&(*myFuncs));
+ core30fwd = (OpenGl_GlCore30Fwd* )(&(*myFuncs));
+ hasGetBufferData = true;
}
- hasFloatBuffer = IsGlGreaterEqual (3, 2) ? OpenGl_FeatureInCore :
- CheckExtension ("GL_EXT_color_buffer_float") ? OpenGl_FeatureInExtensions
- : OpenGl_FeatureNotAvailable;
- hasHalfFloatBuffer = IsGlGreaterEqual (3, 2) ? OpenGl_FeatureInCore :
- CheckExtension ("GL_EXT_color_buffer_half_float") ? OpenGl_FeatureInExtensions
- : OpenGl_FeatureNotAvailable;
-
- oesSampleVariables = CheckExtension ("GL_OES_sample_variables");
- hasSampleVariables = IsGlGreaterEqual (3, 2) ? OpenGl_FeatureInCore :
- oesSampleVariables ? OpenGl_FeatureInExtensions
- : OpenGl_FeatureNotAvailable;
-#else
-
- myTexClamp = IsGlGreaterEqual (1, 2) ? GL_CLAMP_TO_EDGE : GL_CLAMP;
-
- hasTexRGBA8 = Standard_True;
- arbDrawBuffers = CheckExtension ("GL_ARB_draw_buffers");
- arbNPTW = CheckExtension ("GL_ARB_texture_non_power_of_two");
+ // load OpenGL ES 3.1 new functions
+ const bool has31es = IsGlGreaterEqual (3, 1)
+ && has30es
+ && FindProcShort (glDispatchCompute)
+ && FindProcShort (glDispatchComputeIndirect)
+ && FindProcShort (glDrawArraysIndirect)
+ && FindProcShort (glDrawElementsIndirect)
+ && FindProcShort (glFramebufferParameteri)
+ && FindProcShort (glGetFramebufferParameteriv)
+ && FindProcShort (glGetProgramInterfaceiv)
+ && FindProcShort (glGetProgramResourceIndex)
+ && FindProcShort (glGetProgramResourceName)
+ && FindProcShort (glGetProgramResourceiv)
+ && FindProcShort (glGetProgramResourceLocation)
+ && FindProcShort (glUseProgramStages)
+ && FindProcShort (glActiveShaderProgram)
+ && FindProcShort (glCreateShaderProgramv)
+ && FindProcShort (glBindProgramPipeline)
+ && FindProcShort (glDeleteProgramPipelines)
+ && FindProcShort (glGenProgramPipelines)
+ && FindProcShort (glIsProgramPipeline)
+ && FindProcShort (glGetProgramPipelineiv)
+ && FindProcShort (glProgramUniform1i)
+ && FindProcShort (glProgramUniform2i)
+ && FindProcShort (glProgramUniform3i)
+ && FindProcShort (glProgramUniform4i)
+ && FindProcShort (glProgramUniform1ui)
+ && FindProcShort (glProgramUniform2ui)
+ && FindProcShort (glProgramUniform3ui)
+ && FindProcShort (glProgramUniform4ui)
+ && FindProcShort (glProgramUniform1f)
+ && FindProcShort (glProgramUniform2f)
+ && FindProcShort (glProgramUniform3f)
+ && FindProcShort (glProgramUniform4f)
+ && FindProcShort (glProgramUniform1iv)
+ && FindProcShort (glProgramUniform2iv)
+ && FindProcShort (glProgramUniform3iv)
+ && FindProcShort (glProgramUniform4iv)
+ && FindProcShort (glProgramUniform1uiv)
+ && FindProcShort (glProgramUniform2uiv)
+ && FindProcShort (glProgramUniform3uiv)
+ && FindProcShort (glProgramUniform4uiv)
+ && FindProcShort (glProgramUniform1fv)
+ && FindProcShort (glProgramUniform2fv)
+ && FindProcShort (glProgramUniform3fv)
+ && FindProcShort (glProgramUniform4fv)
+ && FindProcShort (glProgramUniformMatrix2fv)
+ && FindProcShort (glProgramUniformMatrix3fv)
+ && FindProcShort (glProgramUniformMatrix4fv)
+ && FindProcShort (glProgramUniformMatrix2x3fv)
+ && FindProcShort (glProgramUniformMatrix3x2fv)
+ && FindProcShort (glProgramUniformMatrix2x4fv)
+ && FindProcShort (glProgramUniformMatrix4x2fv)
+ && FindProcShort (glProgramUniformMatrix3x4fv)
+ && FindProcShort (glProgramUniformMatrix4x3fv)
+ && FindProcShort (glValidateProgramPipeline)
+ && FindProcShort (glGetProgramPipelineInfoLog)
+ && FindProcShort (glBindImageTexture)
+ && FindProcShort (glGetBooleani_v)
+ && FindProcShort (glMemoryBarrier)
+ && FindProcShort (glMemoryBarrierByRegion)
+ && FindProcShort (glTexStorage2DMultisample)
+ && FindProcShort (glGetMultisamplefv)
+ && FindProcShort (glSampleMaski)
+ && FindProcShort (glGetTexLevelParameteriv)
+ && FindProcShort (glGetTexLevelParameterfv)
+ && FindProcShort (glBindVertexBuffer)
+ && FindProcShort (glVertexAttribFormat)
+ && FindProcShort (glVertexAttribIFormat)
+ && FindProcShort (glVertexAttribBinding)
+ && FindProcShort (glVertexBindingDivisor);
+ if (!has31es)
+ {
+ checkWrongVersion (3, 1, aLastFailedProc);
+ }
+
+ // initialize debug context extension
+ if (IsGlGreaterEqual (3, 2)
+ || CheckExtension ("GL_KHR_debug"))
+ {
+ // this functionality become a part of OpenGL ES 3.2
+ arbDbg = NULL;
+ if (IsGlGreaterEqual (3, 2)
+ && FindProcShort (glDebugMessageControl)
+ && FindProcShort (glDebugMessageInsert)
+ && FindProcShort (glDebugMessageCallback)
+ && FindProcShort (glGetDebugMessageLog))
+ {
+ arbDbg = (OpenGl_ArbDbg* )(&(*myFuncs));
+ }
+ // According to GL_KHR_debug spec, all functions should have KHR suffix.
+ // However, some implementations can export these functions without suffix.
+ else if (!IsGlGreaterEqual (3, 2)
+ && FindProc ("glDebugMessageControlKHR", myFuncs->glDebugMessageControl)
+ && FindProc ("glDebugMessageInsertKHR", myFuncs->glDebugMessageInsert)
+ && FindProc ("glDebugMessageCallbackKHR", myFuncs->glDebugMessageCallback)
+ && FindProc ("glGetDebugMessageLogKHR", myFuncs->glGetDebugMessageLog))
+ {
+ arbDbg = (OpenGl_ArbDbg* )(&(*myFuncs));
+ }
+
+ if (arbDbg != NULL
+ && caps->contextDebug)
+ {
+ // setup default callback
+ myIsGlDebugCtx = Standard_True;
+ arbDbg->glDebugMessageCallback (debugCallbackWrap, this);
+ ::glEnable (GL_DEBUG_OUTPUT);
+ if (caps->contextSyncDebug)
+ {
+ // note that some broken implementations (e.g. simulators) might generate error message on this call
+ ::glEnable (GL_DEBUG_OUTPUT_SYNCHRONOUS);
+ }
+ }
+ }
+
+ // load OpenGL ES 3.2 new functions
+ const bool has32es = IsGlGreaterEqual (3, 2)
+ && has31es
+ && hasTexBuffer32
+ && arbDbg != NULL
+ && FindProcShort (glBlendBarrier)
+ && FindProcShort (glCopyImageSubData)
+ && FindProcShort (glPushDebugGroup)
+ && FindProcShort (glPopDebugGroup)
+ && FindProcShort (glObjectLabel)
+ && FindProcShort (glGetObjectLabel)
+ && FindProcShort (glObjectPtrLabel)
+ && FindProcShort (glGetObjectPtrLabel)
+ && FindProcShort (glGetPointerv)
+ && FindProcShort (glEnablei)
+ && FindProcShort (glDisablei)
+ && FindProcShort (glBlendEquationi)
+ && FindProcShort (glBlendEquationSeparatei)
+ && FindProcShort (glBlendFunci)
+ && FindProcShort (glBlendFuncSeparatei)
+ && FindProcShort (glColorMaski)
+ && FindProcShort (glIsEnabledi)
+ && FindProcShort (glDrawElementsBaseVertex)
+ && FindProcShort (glDrawRangeElementsBaseVertex)
+ && FindProcShort (glDrawElementsInstancedBaseVertex)
+ && FindProcShort (glFramebufferTexture)
+ && FindProcShort (glPrimitiveBoundingBox)
+ && FindProcShort (glGetGraphicsResetStatus)
+ && FindProcShort (glReadnPixels)
+ && FindProcShort (glGetnUniformfv)
+ && FindProcShort (glGetnUniformiv)
+ && FindProcShort (glGetnUniformuiv)
+ && FindProcShort (glMinSampleShading)
+ && FindProcShort (glPatchParameteri)
+ && FindProcShort (glTexParameterIiv)
+ && FindProcShort (glTexParameterIuiv)
+ && FindProcShort (glGetTexParameterIiv)
+ && FindProcShort (glGetTexParameterIuiv)
+ && FindProcShort (glSamplerParameterIiv)
+ && FindProcShort (glSamplerParameterIuiv)
+ && FindProcShort (glGetSamplerParameterIiv)
+ && FindProcShort (glGetSamplerParameterIuiv)
+ && FindProcShort (glTexBufferRange)
+ && FindProcShort (glTexStorage3DMultisample);
+ if (!has32es)
+ {
+ checkWrongVersion (3, 2, aLastFailedProc);
+ }
+
+ extDrawBuffers = CheckExtension ("GL_EXT_draw_buffers") && FindProc ("glDrawBuffersEXT", myFuncs->glDrawBuffers);
+ arbDrawBuffers = CheckExtension ("GL_ARB_draw_buffers") && FindProc ("glDrawBuffersARB", myFuncs->glDrawBuffers);
+
+ if (IsGlGreaterEqual (3, 0) && FindProcShort (glDrawBuffers))
+ {
+ hasDrawBuffers = OpenGl_FeatureInCore;
+ }
+ else if (extDrawBuffers || arbDrawBuffers)
+ {
+ hasDrawBuffers = OpenGl_FeatureInExtensions;
+ }
+
+ hasFloatBuffer = IsGlGreaterEqual (3, 2) ? OpenGl_FeatureInCore :
+ CheckExtension ("GL_EXT_color_buffer_float") ? OpenGl_FeatureInExtensions
+ : OpenGl_FeatureNotAvailable;
+ hasHalfFloatBuffer = IsGlGreaterEqual (3, 2) ? OpenGl_FeatureInCore :
+ CheckExtension ("GL_EXT_color_buffer_half_float") ? OpenGl_FeatureInExtensions
+ : OpenGl_FeatureNotAvailable;
+
+ oesSampleVariables = CheckExtension ("GL_OES_sample_variables");
+ oesStdDerivatives = CheckExtension ("GL_OES_standard_derivatives");
+ hasSampleVariables = IsGlGreaterEqual (3, 2) ? OpenGl_FeatureInCore :
+ oesSampleVariables ? OpenGl_FeatureInExtensions
+ : OpenGl_FeatureNotAvailable;
+ hasGlslBitwiseOps = IsGlGreaterEqual (3, 0)
+ ? OpenGl_FeatureInCore
+ : OpenGl_FeatureNotAvailable;
+ // without hasHighp, dFdx/dFdy precision is considered too low for flat shading (visual artifacts)
+ hasFlatShading = IsGlGreaterEqual (3, 0)
+ ? OpenGl_FeatureInCore
+ : (oesStdDerivatives && hasHighp
+ ? OpenGl_FeatureInExtensions
+ : OpenGl_FeatureNotAvailable);
+ if (!IsGlGreaterEqual (3, 1)
+ && myVendor.Search("qualcomm") != -1)
+ {
+ // dFdx/dFdy are completely broken on tested Adreno devices with versions below OpenGl ES 3.1
+ hasFlatShading = OpenGl_FeatureNotAvailable;
+ }
+
+ hasGeometryStage = IsGlGreaterEqual (3, 2)
+ ? OpenGl_FeatureInCore
+ : (CheckExtension ("GL_EXT_geometry_shader") && CheckExtension ("GL_EXT_shader_io_blocks")
+ ? OpenGl_FeatureInExtensions
+ : OpenGl_FeatureNotAvailable);
+#else
+
+ myTexClamp = IsGlGreaterEqual (1, 2) ? GL_CLAMP_TO_EDGE : GL_CLAMP;
+
+ hasTexRGBA8 = Standard_True;
+ hasTexSRGB = IsGlGreaterEqual (2, 1);
+ hasFboSRGB = IsGlGreaterEqual (2, 1);
+ hasSRGBControl = hasFboSRGB;
+ arbDrawBuffers = CheckExtension ("GL_ARB_draw_buffers");
+ arbNPTW = CheckExtension ("GL_ARB_texture_non_power_of_two");
arbTexFloat = IsGlGreaterEqual (3, 0)
|| CheckExtension ("GL_ARB_texture_float");
+ hasTexFloatLinear = arbTexFloat;
arbSampleShading = CheckExtension ("GL_ARB_sample_shading");
- extBgra = CheckExtension ("GL_EXT_bgra");
+ extBgra = IsGlGreaterEqual (1, 2)
+ || CheckExtension ("GL_EXT_bgra");
extAnis = CheckExtension ("GL_EXT_texture_filter_anisotropic");
extPDS = CheckExtension ("GL_EXT_packed_depth_stencil");
atiMem = CheckExtension ("GL_ATI_meminfo");
nvxMem = CheckExtension ("GL_NVX_gpu_memory_info");
+ if (extBgra)
+ {
+ mySupportedFormats->Add (Image_PixMap::ImgBGR);
+ mySupportedFormats->Add (Image_PixMap::ImgBGR32);
+ mySupportedFormats->Add (Image_PixMap::ImgBGRA);
+ }
+
hasDrawBuffers = IsGlGreaterEqual (2, 0) ? OpenGl_FeatureInCore :
arbDrawBuffers ? OpenGl_FeatureInExtensions
: OpenGl_FeatureNotAvailable;
+ hasGlslBitwiseOps = IsGlGreaterEqual (3, 0)
+ ? OpenGl_FeatureInCore
+ : CheckExtension ("GL_EXT_gpu_shader4")
+ ? OpenGl_FeatureInExtensions
+ : OpenGl_FeatureNotAvailable;
+
hasFloatBuffer = hasHalfFloatBuffer = IsGlGreaterEqual (3, 0) ? OpenGl_FeatureInCore :
CheckExtension ("GL_ARB_color_buffer_float") ? OpenGl_FeatureInExtensions
: OpenGl_FeatureNotAvailable;
+ hasGeometryStage = IsGlGreaterEqual (3, 2)
+ ? OpenGl_FeatureInCore
+ : OpenGl_FeatureNotAvailable;
+
hasSampleVariables = IsGlGreaterEqual (4, 0) ? OpenGl_FeatureInCore :
arbSampleShading ? OpenGl_FeatureInExtensions
: OpenGl_FeatureNotAvailable;
{
glGetIntegerv (GL_MAX_DRAW_BUFFERS, &myMaxDrawBuffers);
glGetIntegerv (GL_MAX_COLOR_ATTACHMENTS, &myMaxColorAttachments);
+ if (myDrawBuffers.Length() < myMaxDrawBuffers)
+ {
+ myDrawBuffers.Resize (0, myMaxDrawBuffers - 1, false);
+ }
}
glGetIntegerv (GL_MAX_TEXTURE_SIZE, &myMaxTexDim);
+#if !defined(GL_ES_VERSION_2_0)
+ if (IsGlGreaterEqual (1, 3) && core11 != NULL)
+ {
+ // this is a maximum of texture units for FFP functionality,
+ // usually smaller than combined texture units available for GLSL
+ glGetIntegerv (GL_MAX_TEXTURE_UNITS, &myMaxTexUnitsFFP);
+ myMaxTexCombined = myMaxTexUnitsFFP;
+ }
+#endif
+ if (IsGlGreaterEqual (2, 0))
+ {
+ glGetIntegerv (GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &myMaxTexCombined);
+ }
+ mySpriteTexUnit = myMaxTexCombined >= 2
+ ? Graphic3d_TextureUnit_PointSprite
+ : Graphic3d_TextureUnit_0;
+
+ GLint aMaxVPortSize[2] = {0, 0};
+ glGetIntegerv (GL_MAX_VIEWPORT_DIMS, aMaxVPortSize);
+ myMaxDumpSizeX = Min (aMaxVPortSize[0], myMaxTexDim);
+ myMaxDumpSizeY = Min (aMaxVPortSize[1], myMaxTexDim);
+ if (myVendor == "intel")
+ {
+ // Intel drivers have known bug with empty dump for images with width>=5462
+ myMaxDumpSizeX = Min (myMaxDumpSizeX, 4096);
+ }
if (extAnis)
{
glGetIntegerv (GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &myAnisoMax);
}
- myClippingState.Init (myMaxClipPlanes);
+ myClippingState.Init();
#if !defined(GL_ES_VERSION_2_0)
bool has42 = false;
bool has43 = false;
bool has44 = false;
-
- //! Make record shorter to retrieve function pointer using variable with same name
- #define FindProcShort(theFunc) FindProc(#theFunc, myFuncs->theFunc)
+ bool has45 = false;
// retrieve platform-dependent extensions
#if defined(HAVE_EGL)
&& FindProcShort (glTexImage3D)
&& FindProcShort (glTexSubImage3D)
&& FindProcShort (glCopyTexSubImage3D);
+ if (!has12)
+ {
+ checkWrongVersion (1, 2, aLastFailedProc);
+ }
// load OpenGL 1.3 new functions
has13 = IsGlGreaterEqual (1, 3)
&& FindProcShort (glMultTransposeMatrixf)
&& FindProcShort (glMultTransposeMatrixd);
}
+ if (!has13)
+ {
+ checkWrongVersion (1, 3, aLastFailedProc);
+ }
// load OpenGL 1.4 new functions
has14 = IsGlGreaterEqual (1, 4)
&& FindProcShort (glPointParameterfv)
&& FindProcShort (glPointParameteri)
&& FindProcShort (glPointParameteriv);
+ if (!has14)
+ {
+ checkWrongVersion (1, 4, aLastFailedProc);
+ }
// load OpenGL 1.5 new functions
has15 = IsGlGreaterEqual (1, 5)
&& FindProcShort (glUnmapBuffer)
&& FindProcShort (glGetBufferParameteriv)
&& FindProcShort (glGetBufferPointerv);
+ if (has15)
+ {
+ if (!isCoreProfile)
+ {
+ core15 = (OpenGl_GlCore15* )(&(*myFuncs));
+ }
+ core15fwd = (OpenGl_GlCore15Fwd* )(&(*myFuncs));
+ hasGetBufferData = true;
+ }
+ else
+ {
+ checkWrongVersion (1, 5, aLastFailedProc);
+ }
// load OpenGL 2.0 new functions
has20 = IsGlGreaterEqual (2, 0)
&& FindProcShort (glVertexAttrib4uiv)
&& FindProcShort (glVertexAttrib4usv)
&& FindProcShort (glVertexAttribPointer);
+ if (has20)
+ {
+ const char* aGlslVer = (const char* )::glGetString (GL_SHADING_LANGUAGE_VERSION);
+ if (aGlslVer == NULL
+ || *aGlslVer == '\0')
+ {
+ // broken context has been detected
+ PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_ERROR, 0, GL_DEBUG_SEVERITY_HIGH,
+ TCollection_AsciiString("Error! OpenGL context reports version ")
+ + myGlVerMajor + "." + myGlVerMinor + " but reports wrong GLSL version");
+ myGlVerMajor = 1;
+ myGlVerMinor = 5;
+ }
+ else
+ {
+ if (!isCoreProfile)
+ {
+ core20 = (OpenGl_GlCore20* )(&(*myFuncs));
+ }
+ core20fwd = (OpenGl_GlCore20Fwd* )(&(*myFuncs));
+ }
+ }
+ else
+ {
+ checkWrongVersion (2, 0, aLastFailedProc);
+ }
// load OpenGL 2.1 new functions
has21 = IsGlGreaterEqual (2, 1)
&& FindProcShort (glUniformMatrix4x2fv)
&& FindProcShort (glUniformMatrix3x4fv)
&& FindProcShort (glUniformMatrix4x3fv);
+ if (!has21)
+ {
+ checkWrongVersion (2, 1, aLastFailedProc);
+ }
// load GL_ARB_framebuffer_object (added to OpenGL 3.0 core)
const bool hasFBO = (IsGlGreaterEqual (3, 0) || CheckExtension ("GL_ARB_framebuffer_object"))
&& FindProcShort (glClearBufferfv)
&& FindProcShort (glClearBufferfi)
&& FindProcShort (glGetStringi);
+ if (!has30)
+ {
+ checkWrongVersion (3, 0, aLastFailedProc);
+ }
// load GL_ARB_uniform_buffer_object (added to OpenGL 3.1 core)
const bool hasUBO = (IsGlGreaterEqual (3, 1) || CheckExtension ("GL_ARB_uniform_buffer_object"))
// but doesn't hardware accelerated by some ancient OpenGL 2.1 hardware (GeForce FX, RadeOn 9700 etc.)
arbNPTW = Standard_True;
arbTexRG = Standard_True;
+
+ if (!isCoreProfile)
+ {
+ core30 = (OpenGl_GlCore30* )(&(*myFuncs));
+ }
+ core30fwd = (OpenGl_GlCore30Fwd* )(&(*myFuncs));
}
// load OpenGL 3.1 new functions
&& FindProcShort (glDrawElementsInstanced)
&& FindProcShort (glTexBuffer)
&& FindProcShort (glPrimitiveRestartIndex);
+ if (has31)
+ {
+ arbTBO = (OpenGl_ArbTBO* )(&(*myFuncs));
+ arbIns = (OpenGl_ArbIns* )(&(*myFuncs));
+ }
+ else
+ {
+ checkWrongVersion (3, 1, aLastFailedProc);
+
+ // initialize TBO extension (ARB)
+ if (CheckExtension ("GL_ARB_texture_buffer_object")
+ && FindProc ("glTexBufferARB", myFuncs->glTexBuffer))
+ {
+ arbTBO = (OpenGl_ArbTBO* )(&(*myFuncs));
+ }
+
+ // initialize hardware instancing extension (ARB)
+ if (CheckExtension ("GL_ARB_draw_instanced")
+ && FindProc ("glDrawArraysInstancedARB", myFuncs->glDrawArraysInstanced)
+ && FindProc ("glDrawElementsInstancedARB", myFuncs->glDrawElementsInstanced))
+ {
+ arbIns = (OpenGl_ArbIns* )(&(*myFuncs));
+ }
+ }
+
+ arbTboRGB32 = CheckExtension ("GL_ARB_texture_buffer_object_rgb32");
// load GL_ARB_draw_elements_base_vertex (added to OpenGL 3.2 core)
const bool hasDrawElemsBaseVert = (IsGlGreaterEqual (3, 2) || CheckExtension ("GL_ARB_draw_elements_base_vertex"))
&& FindProcShort (glGetInteger64i_v)
&& FindProcShort (glGetBufferParameteri64v)
&& FindProcShort (glFramebufferTexture);
+ if (has32)
+ {
+ core32 = (OpenGl_GlCore32* )(&(*myFuncs));
+ if (isCoreProfile)
+ {
+ core32->glGenVertexArrays (1, &myDefaultVao);
+ }
+ else
+ {
+ core32back = (OpenGl_GlCore32Back* )(&(*myFuncs));
+ }
+ ::glGetIntegerv (GL_MAX_SAMPLES, &myMaxMsaaSamples);
+ }
+ else
+ {
+ checkWrongVersion (3, 2, aLastFailedProc);
+ }
// load GL_ARB_blend_func_extended (added to OpenGL 3.3 core)
const bool hasBlendFuncExtended = (IsGlGreaterEqual (3, 3) || CheckExtension ("GL_ARB_blend_func_extended"))
&& FindProcShort (glGetSamplerParameterIiv)
&& FindProcShort (glGetSamplerParameterfv)
&& FindProcShort (glGetSamplerParameterIuiv);
+ if (hasSamplerObjects)
+ {
+ arbSamplerObject = (OpenGl_ArbSamplerObject* )(&(*myFuncs));
+ }
// load GL_ARB_timer_query (added to OpenGL 3.3 core)
const bool hasTimerQuery = (IsGlGreaterEqual (3, 3) || CheckExtension ("GL_ARB_timer_query"))
&& hasTimerQuery
&& hasVertType21010101rev
&& FindProcShort (glVertexAttribDivisor);
+ if (has33)
+ {
+ core33 = (OpenGl_GlCore33* )(&(*myFuncs));
+ if (!isCoreProfile)
+ {
+ core33back = (OpenGl_GlCore33Back* )(&(*myFuncs));
+ }
+ }
+ else
+ {
+ checkWrongVersion (3, 3, aLastFailedProc);
+ }
// load GL_ARB_draw_indirect (added to OpenGL 4.0 core)
const bool hasDrawIndirect = (IsGlGreaterEqual (4, 0) || CheckExtension ("GL_ARB_draw_indirect"))
&& FindProcShort (glBlendEquationSeparatei)
&& FindProcShort (glBlendFunci)
&& FindProcShort (glBlendFuncSeparatei);
+ if (has40)
+ {
+ arbTboRGB32 = Standard_True; // in core since OpenGL 4.0
+ }
+ else
+ {
+ checkWrongVersion (4, 0, aLastFailedProc);
+ }
// load GL_ARB_ES2_compatibility (added to OpenGL 4.1 core)
const bool hasES2Compatibility = (IsGlGreaterEqual (4, 1) || CheckExtension ("GL_ARB_ES2_compatibility"))
&& hasSeparateShaderObjects
&& hasVertAttrib64bit
&& hasViewportArray;
+ if (has41)
+ {
+ core41 = (OpenGl_GlCore41* )(&(*myFuncs));
+ if (!isCoreProfile)
+ {
+ core41back = (OpenGl_GlCore41Back* )(&(*myFuncs));
+ }
+ }
+ else
+ {
+ checkWrongVersion (4, 1, aLastFailedProc);
+ }
// load GL_ARB_base_instance (added to OpenGL 4.2 core)
const bool hasBaseInstance = (IsGlGreaterEqual (4, 2) || CheckExtension ("GL_ARB_base_instance"))
&& hasShaderAtomicCounters
&& hasShaderImgLoadStore
&& hasTextureStorage;
+ if (has42)
+ {
+ core42 = (OpenGl_GlCore42* )(&(*myFuncs));
+ if (!isCoreProfile)
+ {
+ core42back = (OpenGl_GlCore42Back* )(&(*myFuncs));
+ }
+ }
+ else
+ {
+ checkWrongVersion (4, 2, aLastFailedProc);
+ }
has43 = IsGlGreaterEqual (4, 3)
&& FindProcShort (glClearBufferData)
&& FindProcShort (glGetObjectLabel)
&& FindProcShort (glObjectPtrLabel)
&& FindProcShort (glGetObjectPtrLabel);
+ if (has43)
+ {
+ core43 = (OpenGl_GlCore43* )(&(*myFuncs));
+ if (!isCoreProfile)
+ {
+ core43back = (OpenGl_GlCore43Back* )(&(*myFuncs));
+ }
+ }
+ else
+ {
+ checkWrongVersion (4, 3, aLastFailedProc);
+ }
// load GL_ARB_clear_texture (added to OpenGL 4.4 core)
bool arbTexClear = (IsGlGreaterEqual (4, 4) || CheckExtension ("GL_ARB_clear_texture"))
&& FindProcShort (glBindSamplers)
&& FindProcShort (glBindImageTextures)
&& FindProcShort (glBindVertexBuffers);
+ if (has44)
+ {
+ core44 = (OpenGl_GlCore44* )(&(*myFuncs));
+ if (!isCoreProfile)
+ {
+ core44back = (OpenGl_GlCore44Back* )(&(*myFuncs));
+ }
+ }
+ else
+ {
+ checkWrongVersion (4, 4, aLastFailedProc);
+ }
+
+ has45 = IsGlGreaterEqual (4, 5)
+ && FindProcShort (glBindVertexBuffers)
+ && FindProcShort (glClipControl)
+ && FindProcShort (glCreateTransformFeedbacks)
+ && FindProcShort (glTransformFeedbackBufferBase)
+ && FindProcShort (glTransformFeedbackBufferRange)
+ && FindProcShort (glGetTransformFeedbackiv)
+ && FindProcShort (glGetTransformFeedbacki_v)
+ && FindProcShort (glGetTransformFeedbacki64_v)
+ && FindProcShort (glCreateBuffers)
+ && FindProcShort (glNamedBufferStorage)
+ && FindProcShort (glNamedBufferData)
+ && FindProcShort (glNamedBufferSubData)
+ && FindProcShort (glCopyNamedBufferSubData)
+ && FindProcShort (glClearNamedBufferData)
+ && FindProcShort (glClearNamedBufferSubData)
+ && FindProcShort (glMapNamedBuffer)
+ && FindProcShort (glMapNamedBufferRange)
+ && FindProcShort (glUnmapNamedBuffer)
+ && FindProcShort (glFlushMappedNamedBufferRange)
+ && FindProcShort (glGetNamedBufferParameteriv)
+ && FindProcShort (glGetNamedBufferParameteri64v)
+ && FindProcShort (glGetNamedBufferPointerv)
+ && FindProcShort (glGetNamedBufferSubData)
+ && FindProcShort (glCreateFramebuffers)
+ && FindProcShort (glNamedFramebufferRenderbuffer)
+ && FindProcShort (glNamedFramebufferParameteri)
+ && FindProcShort (glNamedFramebufferTexture)
+ && FindProcShort (glNamedFramebufferTextureLayer)
+ && FindProcShort (glNamedFramebufferDrawBuffer)
+ && FindProcShort (glNamedFramebufferDrawBuffers)
+ && FindProcShort (glNamedFramebufferReadBuffer)
+ && FindProcShort (glInvalidateNamedFramebufferData)
+ && FindProcShort (glInvalidateNamedFramebufferSubData)
+ && FindProcShort (glClearNamedFramebufferiv)
+ && FindProcShort (glClearNamedFramebufferuiv)
+ && FindProcShort (glClearNamedFramebufferfv)
+ && FindProcShort (glClearNamedFramebufferfi)
+ && FindProcShort (glBlitNamedFramebuffer)
+ && FindProcShort (glCheckNamedFramebufferStatus)
+ && FindProcShort (glGetNamedFramebufferParameteriv)
+ && FindProcShort (glGetNamedFramebufferAttachmentParameteriv)
+ && FindProcShort (glCreateRenderbuffers)
+ && FindProcShort (glNamedRenderbufferStorage)
+ && FindProcShort (glNamedRenderbufferStorageMultisample)
+ && FindProcShort (glGetNamedRenderbufferParameteriv)
+ && FindProcShort (glCreateTextures)
+ && FindProcShort (glTextureBuffer)
+ && FindProcShort (glTextureBufferRange)
+ && FindProcShort (glTextureStorage1D)
+ && FindProcShort (glTextureStorage2D)
+ && FindProcShort (glTextureStorage3D)
+ && FindProcShort (glTextureStorage2DMultisample)
+ && FindProcShort (glTextureStorage3DMultisample)
+ && FindProcShort (glTextureSubImage1D)
+ && FindProcShort (glTextureSubImage2D)
+ && FindProcShort (glTextureSubImage3D)
+ && FindProcShort (glCompressedTextureSubImage1D)
+ && FindProcShort (glCompressedTextureSubImage2D)
+ && FindProcShort (glCompressedTextureSubImage3D)
+ && FindProcShort (glCopyTextureSubImage1D)
+ && FindProcShort (glCopyTextureSubImage2D)
+ && FindProcShort (glCopyTextureSubImage3D)
+ && FindProcShort (glTextureParameterf)
+ && FindProcShort (glTextureParameterfv)
+ && FindProcShort (glTextureParameteri)
+ && FindProcShort (glTextureParameterIiv)
+ && FindProcShort (glTextureParameterIuiv)
+ && FindProcShort (glTextureParameteriv)
+ && FindProcShort (glGenerateTextureMipmap)
+ && FindProcShort (glBindTextureUnit)
+ && FindProcShort (glGetTextureImage)
+ && FindProcShort (glGetCompressedTextureImage)
+ && FindProcShort (glGetTextureLevelParameterfv)
+ && FindProcShort (glGetTextureLevelParameteriv)
+ && FindProcShort (glGetTextureParameterfv)
+ && FindProcShort (glGetTextureParameterIiv)
+ && FindProcShort (glGetTextureParameterIuiv)
+ && FindProcShort (glGetTextureParameteriv)
+ && FindProcShort (glCreateVertexArrays)
+ && FindProcShort (glDisableVertexArrayAttrib)
+ && FindProcShort (glEnableVertexArrayAttrib)
+ && FindProcShort (glVertexArrayElementBuffer)
+ && FindProcShort (glVertexArrayVertexBuffer)
+ && FindProcShort (glVertexArrayVertexBuffers)
+ && FindProcShort (glVertexArrayAttribBinding)
+ && FindProcShort (glVertexArrayAttribFormat)
+ && FindProcShort (glVertexArrayAttribIFormat)
+ && FindProcShort (glVertexArrayAttribLFormat)
+ && FindProcShort (glVertexArrayBindingDivisor)
+ && FindProcShort (glGetVertexArrayiv)
+ && FindProcShort (glGetVertexArrayIndexediv)
+ && FindProcShort (glGetVertexArrayIndexed64iv)
+ && FindProcShort (glCreateSamplers)
+ && FindProcShort (glCreateProgramPipelines)
+ && FindProcShort (glCreateQueries)
+ && FindProcShort (glGetQueryBufferObjecti64v)
+ && FindProcShort (glGetQueryBufferObjectiv)
+ && FindProcShort (glGetQueryBufferObjectui64v)
+ && FindProcShort (glGetQueryBufferObjectuiv)
+ && FindProcShort (glMemoryBarrierByRegion)
+ && FindProcShort (glGetTextureSubImage)
+ && FindProcShort (glGetCompressedTextureSubImage)
+ && FindProcShort (glGetGraphicsResetStatus)
+ && FindProcShort (glGetnCompressedTexImage)
+ && FindProcShort (glGetnTexImage)
+ && FindProcShort (glGetnUniformdv)
+ && FindProcShort (glGetnUniformfv)
+ && FindProcShort (glGetnUniformiv)
+ && FindProcShort (glGetnUniformuiv)
+ && FindProcShort (glReadnPixels)
+ && FindProcShort (glGetnMapdv)
+ && FindProcShort (glGetnMapfv)
+ && FindProcShort (glGetnMapiv)
+ && FindProcShort (glGetnPixelMapfv)
+ && FindProcShort (glGetnPixelMapuiv)
+ && FindProcShort (glGetnPixelMapusv)
+ && FindProcShort (glGetnPolygonStipple)
+ && FindProcShort (glGetnColorTable)
+ && FindProcShort (glGetnConvolutionFilter)
+ && FindProcShort (glGetnSeparableFilter)
+ && FindProcShort (glGetnHistogram)
+ && FindProcShort (glGetnMinmax)
+ && FindProcShort (glTextureBarrier);
+ if (has45)
+ {
+ core45 = (OpenGl_GlCore45* )(&(*myFuncs));
+ if (!isCoreProfile)
+ {
+ core45back = (OpenGl_GlCore45Back* )(&(*myFuncs));
+ }
+ }
+ else
+ {
+ checkWrongVersion (4, 5, aLastFailedProc);
+ }
// initialize debug context extension
if (CheckExtension ("GL_ARB_debug_output"))
}
}
- // initialize TBO extension (ARB)
- if (!has31
- && CheckExtension ("GL_ARB_texture_buffer_object")
- && FindProc ("glTexBufferARB", myFuncs->glTexBuffer))
- {
- arbTBO = (OpenGl_ArbTBO* )(&(*myFuncs));
- }
- arbTboRGB32 = CheckExtension ("GL_ARB_texture_buffer_object_rgb32");
-
- // initialize hardware instancing extension (ARB)
- if (!has31
- && CheckExtension ("GL_ARB_draw_instanced")
- && FindProc ("glDrawArraysInstancedARB", myFuncs->glDrawArraysInstanced)
- && FindProc ("glDrawElementsInstancedARB", myFuncs->glDrawElementsInstanced))
- {
- arbIns = (OpenGl_ArbIns* )(&(*myFuncs));
- }
-
// initialize FBO extension (ARB)
if (hasFBO)
{
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;
- }
- 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,
- GL_DEBUG_TYPE_ERROR,
- 0,
- GL_DEBUG_SEVERITY_HIGH,
- aMsg);
- myGlVerMajor = 1;
- myGlVerMinor = 5;
- return;
- }
-
- 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;
- }
-
- // MSAA RenderBuffers have been defined in OpenGL 3.0,
- // but MSAA Textures - only in OpenGL 3.2+
- if (!has32
- && CheckExtension ("GL_ARB_texture_multisample")
- && FindProcShort (glTexImage2DMultisample))
- {
- GLint aNbColorSamples = 0, aNbDepthSamples = 0;
- ::glGetIntegerv (GL_MAX_COLOR_TEXTURE_SAMPLES, &aNbColorSamples);
- ::glGetIntegerv (GL_MAX_DEPTH_TEXTURE_SAMPLES, &aNbDepthSamples);
- myMaxMsaaSamples = Min (aNbColorSamples, aNbDepthSamples);
- }
- if (!has43
- && CheckExtension ("GL_ARB_texture_storage_multisample")
- && FindProcShort (glTexStorage2DMultisample))
- {
- //
- }
-
- if (!has31)
+ if (has30)
{
- checkWrongVersion (3, 1);
- myGlVerMajor = 3;
- myGlVerMinor = 0;
- return;
+ // MSAA RenderBuffers have been defined in OpenGL 3.0,
+ // but MSAA Textures - only in OpenGL 3.2+
+ if (!has32
+ && CheckExtension ("GL_ARB_texture_multisample")
+ && FindProcShort (glTexImage2DMultisample))
+ {
+ GLint aNbColorSamples = 0, aNbDepthSamples = 0;
+ ::glGetIntegerv (GL_MAX_COLOR_TEXTURE_SAMPLES, &aNbColorSamples);
+ ::glGetIntegerv (GL_MAX_DEPTH_TEXTURE_SAMPLES, &aNbDepthSamples);
+ myMaxMsaaSamples = Min (aNbColorSamples, aNbDepthSamples);
+ }
+ if (!has43
+ && CheckExtension ("GL_ARB_texture_storage_multisample")
+ && FindProcShort (glTexStorage2DMultisample))
+ {
+ //
+ }
}
- arbTBO = (OpenGl_ArbTBO* )(&(*myFuncs));
- arbIns = (OpenGl_ArbIns* )(&(*myFuncs));
// check whether ray tracing mode is supported
myHasRayTracing = has31
// check whether adaptive screen sampling in ray tracing mode is supported
myHasRayTracingAdaptiveSampling = myHasRayTracing
- && has44
- && CheckExtension ("GL_NV_shader_atomic_float");
-
- if (!has32)
- {
- checkWrongVersion (3, 2);
- myGlVerMajor = 3;
- myGlVerMinor = 1;
- return;
- }
- core32 = (OpenGl_GlCore32* )(&(*myFuncs));
- if (isCoreProfile)
- {
- core32->glGenVertexArrays (1, &myDefaultVao);
- }
- else
- {
- core32back = (OpenGl_GlCore32Back* )(&(*myFuncs));
- }
- ::glGetIntegerv (GL_MAX_SAMPLES, &myMaxMsaaSamples);
-
- 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
+ && has44;
+ myHasRayTracingAdaptiveSamplingAtomic = myHasRayTracingAdaptiveSampling
+ && CheckExtension ("GL_NV_shader_atomic_float");
+#endif
- if (!has41)
- {
- checkWrongVersion (4, 1);
- myGlVerMajor = 4;
- myGlVerMinor = 0;
- return;
- }
- core41 = (OpenGl_GlCore41* )(&(*myFuncs));
- if (!isCoreProfile)
- {
- core41back = (OpenGl_GlCore41Back* )(&(*myFuncs));
+ if (arbFBO != NULL
+ && hasFboSRGB)
+ {
+ // Detect if window buffer is considered by OpenGL as sRGB-ready
+ // (linear RGB color written by shader is automatically converted into sRGB)
+ // or not (offscreen FBO should be blit into window buffer with gamma correction).
+ const GLenum aDefWinBuffer =
+ #if !defined(GL_ES_VERSION_2_0)
+ GL_BACK_LEFT;
+ #else
+ GL_BACK;
+ #endif
+ GLint aWinColorEncoding = 0; // GL_LINEAR
+ arbFBO->glGetFramebufferAttachmentParameteriv (GL_FRAMEBUFFER, aDefWinBuffer, GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING, &aWinColorEncoding);
+ ResetErrors (true);
+ myIsSRgbWindow = aWinColorEncoding == GL_SRGB;
+
+ // On desktop OpenGL, pixel formats are almost always sRGB-ready, even when not requested;
+ // it is safe behavior on desktop where GL_FRAMEBUFFER_SRGB is disabled by default
+ // (contrary to OpenGL ES, where it is enabled by default).
+ // NVIDIA drivers, however, always return GL_LINEAR even for sRGB-ready pixel formats on Windows platform,
+ // while AMD and Intel report GL_SRGB as expected.
+ // macOS drivers seems to be also report GL_LINEAR even for [NSColorSpace sRGBColorSpace].
+ #if !defined(GL_ES_VERSION_2_0)
+ #ifdef __APPLE__
+ myIsSRgbWindow = true;
+ #else
+ if (!myIsSRgbWindow
+ && myVendor.Search ("nvidia") != -1)
+ {
+ myIsSRgbWindow = true;
+ }
+ #endif
+ #endif
+ if (!myIsSRgbWindow)
+ {
+ Message::SendTrace ("OpenGl_Context, warning: window buffer is not sRGB-ready.\n"
+ "Check OpenGL window creation parameters for optimal performance.");
+ }
}
- if(!has42)
- {
- checkWrongVersion (4, 2);
- myGlVerMajor = 4;
- myGlVerMinor = 1;
- return;
- }
- core42 = (OpenGl_GlCore42* )(&(*myFuncs));
- if (!isCoreProfile)
+ if (arbTexFloat)
{
- core42back = (OpenGl_GlCore42Back* )(&(*myFuncs));
+ mySupportedFormats->Add (Image_Format_GrayF);
+ mySupportedFormats->Add (Image_Format_AlphaF);
+ mySupportedFormats->Add (Image_Format_RGBF);
+ mySupportedFormats->Add (Image_Format_RGBAF);
+ if (arbTexRG)
+ {
+ mySupportedFormats->Add (Image_Format_RGF);
+ }
+ if (extBgra)
+ {
+ #if !defined(GL_ES_VERSION_2_0)
+ mySupportedFormats->Add (Image_Format_BGRF);
+ #endif
+ mySupportedFormats->Add (Image_Format_BGRAF);
+ }
}
- if (!has43)
- {
- checkWrongVersion (4, 3);
- myGlVerMajor = 4;
- myGlVerMinor = 2;
- return;
- }
- core43 = (OpenGl_GlCore43* )(&(*myFuncs));
- if (!isCoreProfile)
+#ifdef __EMSCRIPTEN__
+ if (checkEnableWebGlExtension (*this, "GL_WEBGL_compressed_texture_s3tc")) // GL_WEBGL_compressed_texture_s3tc_srgb for sRGB formats
{
- core43back = (OpenGl_GlCore43Back* )(&(*myFuncs));
+ mySupportedFormats->Add (Image_CompressedFormat_RGB_S3TC_DXT1);
+ mySupportedFormats->Add (Image_CompressedFormat_RGBA_S3TC_DXT1);
+ mySupportedFormats->Add (Image_CompressedFormat_RGBA_S3TC_DXT3);
+ mySupportedFormats->Add (Image_CompressedFormat_RGBA_S3TC_DXT5);
}
-
- if (!has44)
+#else
+ if (CheckExtension ("GL_EXT_texture_compression_s3tc")) // GL_EXT_texture_sRGB for sRGB formats
{
- checkWrongVersion (4, 4);
- myGlVerMajor = 4;
- myGlVerMinor = 3;
- return;
+ mySupportedFormats->Add (Image_CompressedFormat_RGB_S3TC_DXT1);
+ mySupportedFormats->Add (Image_CompressedFormat_RGBA_S3TC_DXT1);
+ mySupportedFormats->Add (Image_CompressedFormat_RGBA_S3TC_DXT3);
+ mySupportedFormats->Add (Image_CompressedFormat_RGBA_S3TC_DXT5);
}
- core44 = (OpenGl_GlCore44* )(&(*myFuncs));
- if (!isCoreProfile)
+ else
{
- core44back = (OpenGl_GlCore44Back* )(&(*myFuncs));
+ if (CheckExtension ("GL_EXT_texture_compression_dxt1"))
+ {
+ mySupportedFormats->Add (Image_CompressedFormat_RGB_S3TC_DXT1);
+ mySupportedFormats->Add (Image_CompressedFormat_RGBA_S3TC_DXT1);
+ }
+ if (CheckExtension ("GL_ANGLE_texture_compression_dxt3"))
+ {
+ mySupportedFormats->Add (Image_CompressedFormat_RGBA_S3TC_DXT3);
+ }
+ if (CheckExtension ("GL_ANGLE_texture_compression_dxt5"))
+ {
+ mySupportedFormats->Add (Image_CompressedFormat_RGBA_S3TC_DXT5);
+ }
}
#endif
+
+ // check whether PBR shading model is supported
+ myHasPBR = arbFBO != NULL
+ && myMaxTexCombined >= 4
+ && arbTexRG
+ && arbTexFloat
+ && (IsGlGreaterEqual (3, 0)
+ #if !defined(GL_ES_VERSION_2_0)
+ || (IsGlGreaterEqual (2, 1) && CheckExtension ("GL_EXT_gpu_shader4"))
+ #endif
+ );
+ if (myHasPBR)
+ {
+ myPBREnvLUTTexUnit = static_cast<Graphic3d_TextureUnit>(myMaxTexCombined + Graphic3d_TextureUnit_PbrEnvironmentLUT);
+ myPBRDiffIBLMapSHTexUnit = static_cast<Graphic3d_TextureUnit>(myMaxTexCombined + Graphic3d_TextureUnit_PbrIblDiffuseSH);
+ myPBRSpecIBLMapTexUnit = static_cast<Graphic3d_TextureUnit>(myMaxTexCombined + Graphic3d_TextureUnit_PbrIblSpecular);
+ }
}
// =======================================================================
if ((theFlags & Graphic3d_DiagnosticInfo_NativePlatform) != 0)
{
#if defined(HAVE_EGL)
- addInfo (theDict, "EGLVersion", ::eglQueryString ((Aspect_Display)myDisplay, EGL_VERSION));
- addInfo (theDict, "EGLVendor", ::eglQueryString ((Aspect_Display)myDisplay, EGL_VENDOR));
- addInfo (theDict, "EGLClientAPIs", ::eglQueryString ((Aspect_Display)myDisplay, EGL_CLIENT_APIS));
+ addInfo (theDict, "EGLVersion", ::eglQueryString ((EGLDisplay )myDisplay, EGL_VERSION));
+ addInfo (theDict, "EGLVendor", ::eglQueryString ((EGLDisplay )myDisplay, EGL_VENDOR));
+ addInfo (theDict, "EGLClientAPIs", ::eglQueryString ((EGLDisplay )myDisplay, EGL_CLIENT_APIS));
if ((theFlags & Graphic3d_DiagnosticInfo_Extensions) != 0)
{
- addInfo (theDict, "EGLExtensions", ::eglQueryString ((Aspect_Display)myDisplay, EGL_EXTENSIONS));
+ addInfo (theDict, "EGLExtensions", ::eglQueryString ((EGLDisplay )myDisplay, EGL_EXTENSIONS));
}
#elif defined(_WIN32)
if ((theFlags & Graphic3d_DiagnosticInfo_Extensions) != 0
if ((theFlags & Graphic3d_DiagnosticInfo_Device) != 0)
{
+ Standard_Integer aDriverVer[2] = {};
+ ReadGlVersion (aDriverVer[0], aDriverVer[1]);
addInfo (theDict, "GLvendor", (const char*)::glGetString (GL_VENDOR));
addInfo (theDict, "GLdevice", (const char*)::glGetString (GL_RENDERER));
+ #ifdef __EMSCRIPTEN__
+ if (checkEnableWebGlExtension (*this, "GL_WEBGL_debug_renderer_info"))
+ {
+ if (const char* aVendor = (const char*)::glGetString (0x9245))
+ {
+ addInfo (theDict, "GLunmaskedVendor", aVendor);
+ }
+ if (const char* aDevice = (const char*)::glGetString (0x9246))
+ {
+ addInfo (theDict, "GLunmaskedDevice", aDevice);
+ }
+ }
+ #endif
+
addInfo (theDict, "GLversion", (const char*)::glGetString (GL_VERSION));
- addInfo (theDict, "GLSLversion", (const char*)::glGetString (GL_SHADING_LANGUAGE_VERSION));
+ if (myGlVerMajor != aDriverVer[0]
+ || myGlVerMinor != aDriverVer[1])
+ {
+ addInfo (theDict, "GLversionOcct", TCollection_AsciiString (myGlVerMajor) + "." + TCollection_AsciiString (myGlVerMinor));
+ }
+ if (IsGlGreaterEqual (2, 0))
+ {
+ addInfo (theDict, "GLSLversion", (const char*)::glGetString (GL_SHADING_LANGUAGE_VERSION));
+ }
if (myIsGlDebugCtx)
{
addInfo (theDict, "GLdebug", "ON");
if ((theFlags & Graphic3d_DiagnosticInfo_Limits) != 0)
{
addInfo (theDict, "Max texture size", TCollection_AsciiString(myMaxTexDim));
+ addInfo (theDict, "Max FBO dump size", TCollection_AsciiString() + myMaxDumpSizeX + "x" + myMaxDumpSizeY);
+ addInfo (theDict, "Max combined texture units", TCollection_AsciiString(myMaxTexCombined));
addInfo (theDict, "Max MSAA samples", TCollection_AsciiString(myMaxMsaaSamples));
}
{
return;
}
- auto& aRes = mySharedResources->Find (theKey);
+ const Handle(OpenGl_Resource)& aRes = mySharedResources->Find (theKey);
if (aRes->GetRefCount() > 1)
{
return;
continue;
}
- auto& aRes = mySharedResources->ChangeFind (aKey);
+ const Handle(OpenGl_Resource)& aRes = mySharedResources->ChangeFind (aKey);
if (aRes->GetRefCount() > 1)
{
// should be only 1 instance in mySharedResources
}
}
+// =======================================================================
+// function : BindTextures
+// purpose :
+// =======================================================================
+Handle(OpenGl_TextureSet) OpenGl_Context::BindTextures (const Handle(OpenGl_TextureSet)& theTextures,
+ const Handle(OpenGl_ShaderProgram)& theProgram)
+{
+ const Standard_Integer aTextureSetBits = !theTextures.IsNull() ? theTextures->TextureSetBits() : 0;
+ const Standard_Integer aProgramBits = !theProgram.IsNull() ? theProgram->TextureSetBits() : 0;
+ Standard_Integer aMissingBits = aProgramBits & ~aTextureSetBits;
+ if (aMissingBits != 0
+ && myTextureRgbaBlack.IsNull())
+ {
+ // allocate mock textures
+ myTextureRgbaBlack = new OpenGl_Texture();
+ myTextureRgbaWhite = new OpenGl_Texture();
+ Image_PixMap anImage;
+ anImage.InitZero (Image_Format_RGBA, 2, 2, 0, (Standard_Byte )0);
+ if (!myTextureRgbaBlack->Init (this, OpenGl_TextureFormat::Create<GLubyte, 4>(), Graphic3d_Vec2i (2, 2), Graphic3d_TOT_2D, &anImage))
+ {
+ PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_PORTABILITY, 0, GL_DEBUG_SEVERITY_HIGH,
+ "Error: unable to create unit mock PBR texture map.");
+ }
+ anImage.InitZero (Image_Format_RGBA, 2, 2, 0, (Standard_Byte )255);
+ if (!myTextureRgbaWhite->Init (this, OpenGl_TextureFormat::Create<GLubyte, 4>(), Graphic3d_Vec2i (2, 2), Graphic3d_TOT_2D, &anImage))
+ {
+ PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_PORTABILITY, 0, GL_DEBUG_SEVERITY_HIGH,
+ "Error: unable to create normal mock PBR texture map.");
+ }
+ }
+
+ Handle(OpenGl_TextureSet) anOldTextures = myActiveTextures;
+ if (myActiveTextures != theTextures)
+ {
+ Handle(OpenGl_Context) aThisCtx (this);
+ for (OpenGl_TextureSetPairIterator aSlotIter (myActiveTextures, theTextures); aSlotIter.More(); aSlotIter.Next())
+ {
+ const Graphic3d_TextureUnit aTexUnit = aSlotIter.Unit();
+ const OpenGl_Texture* aTextureOld = aSlotIter.Texture1();
+ const OpenGl_Texture* aTextureNew = aSlotIter.Texture2();
+ if (aTextureNew == aTextureOld)
+ {
+ continue;
+ }
+
+ if (aTextureNew != NULL
+ && aTextureNew->IsValid())
+ {
+ if (aTexUnit >= myMaxTexCombined)
+ {
+ PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_ERROR, 0, GL_DEBUG_SEVERITY_HIGH,
+ TCollection_AsciiString("Texture unit ") + aTexUnit + " for " + aTextureNew->ResourceId() + " exceeds hardware limit " + myMaxTexCombined);
+ continue;
+ }
+
+ aTextureNew->Bind (aThisCtx, aTexUnit);
+ if (aTextureNew->Sampler()->ToUpdateParameters())
+ {
+ if (aTextureNew->Sampler()->IsImmutable())
+ {
+ aTextureNew->Sampler()->Init (aThisCtx, *aTextureNew);
+ }
+ else
+ {
+ OpenGl_Sampler::applySamplerParams (aThisCtx, aTextureNew->Sampler()->Parameters(), aTextureNew->Sampler().get(), aTextureNew->GetTarget(), aTextureNew->MaxMipmapLevel());
+ }
+ }
+ #if !defined(GL_ES_VERSION_2_0)
+ if (core11 != NULL)
+ {
+ OpenGl_Sampler::applyGlobalTextureParams (aThisCtx, *aTextureNew, aTextureNew->Sampler()->Parameters());
+ }
+ #endif
+ }
+ else if (aTextureOld != NULL
+ && aTextureOld->IsValid())
+ {
+ aTextureOld->Unbind (aThisCtx, aTexUnit);
+ #if !defined(GL_ES_VERSION_2_0)
+ if (core11 != NULL)
+ {
+ OpenGl_Sampler::resetGlobalTextureParams (aThisCtx, *aTextureOld, aTextureOld->Sampler()->Parameters());
+ }
+ #endif
+ }
+ }
+ myActiveTextures = theTextures;
+ }
+
+ if (myActiveMockTextures != aMissingBits)
+ {
+ myActiveMockTextures = aMissingBits;
+ for (Standard_Integer aBitIter = 0; aMissingBits != 0; ++aBitIter)
+ {
+ Standard_Integer aUnitMask = 1 << aBitIter;
+ if ((aUnitMask & aMissingBits) != 0)
+ {
+ aMissingBits = aMissingBits & ~aUnitMask;
+ if (aBitIter == Graphic3d_TextureUnit_Normal)
+ {
+ myTextureRgbaBlack->Bind (this, static_cast<Graphic3d_TextureUnit>(aBitIter));
+ }
+ else
+ {
+ myTextureRgbaWhite->Bind (this, static_cast<Graphic3d_TextureUnit>(aBitIter));
+ }
+ }
+ }
+ }
+
+ return anOldTextures;
+}
+
// =======================================================================
// function : BindProgram
// purpose :
// function : SetShadingMaterial
// purpose :
// =======================================================================
-void OpenGl_Context::SetShadingMaterial (const OpenGl_AspectFace* theAspect,
+void OpenGl_Context::SetShadingMaterial (const OpenGl_Aspects* theAspect,
const Handle(Graphic3d_PresentationAttributes)& theHighlight)
{
- const Handle(Graphic3d_AspectFillArea3d)& anAspect = (!theHighlight.IsNull() && !theHighlight->BasicFillAreaAspect().IsNull())
- ? theHighlight->BasicFillAreaAspect()
- : theAspect->Aspect();
+ const Handle(Graphic3d_Aspects)& anAspect = (!theHighlight.IsNull() && !theHighlight->BasicFillAreaAspect().IsNull())
+ ? (const Handle(Graphic3d_Aspects)& )theHighlight->BasicFillAreaAspect()
+ : theAspect->Aspect();
const bool toDistinguish = anAspect->Distinguish();
const bool toMapTexture = anAspect->ToMapTexture();
? anAspect->BackInteriorColor()
: aFrontIntColor;
- myMatFront.Init (aMatFrontSrc, aFrontIntColor);
+ myMatFront.Init (*this, aMatFrontSrc, aFrontIntColor);
if (toDistinguish)
{
- myMatBack.Init (aMatBackSrc, aBackIntColor);
+ myMatBack.Init (*this, aMatBackSrc, aBackIntColor);
}
else
{
Standard_ShortReal anAlphaBack = 1.0f;
if (CheckIsTransparent (theAspect, theHighlight, anAlphaFront, anAlphaBack))
{
- myMatFront.Diffuse.a() = anAlphaFront;
- myMatBack .Diffuse.a() = anAlphaBack;
+ myMatFront.Common.Diffuse.a() = anAlphaFront;
+ myMatBack .Common.Diffuse.a() = anAlphaBack;
+
+ myMatFront.Pbr.BaseColor.a() = anAlphaFront;
+ myMatBack .Pbr.BaseColor.a() = anAlphaBack;
}
// do not update material properties in case of zero reflection mode,
// because GL lighting will be disabled by OpenGl_PrimitiveArray::DrawArray() anyway.
- if (theAspect->IsNoLighting())
+ const OpenGl_MaterialState& aMatState = myShaderManager->MaterialState();
+ float anAlphaCutoff = anAspect->AlphaMode() == Graphic3d_AlphaMode_Mask
+ ? anAspect->AlphaCutoff()
+ : ShortRealLast();
+ if (anAspect->ToDrawEdges())
+ {
+ if (anAspect->InteriorStyle() == Aspect_IS_EMPTY
+ || (anAspect->InteriorStyle() == Aspect_IS_SOLID
+ && anAspect->EdgeColorRGBA().Alpha() < 1.0f))
+ {
+ anAlphaCutoff = 0.285f;
+ }
+ }
+ if (theAspect->ShadingModel() == Graphic3d_TOSM_UNLIT)
{
- return;
+ if (anAlphaCutoff == aMatState.AlphaCutoff())
+ {
+ return;
+ }
}
-
- if (myMatFront == myShaderManager->MaterialState().FrontMaterial()
- && myMatBack == myShaderManager->MaterialState().BackMaterial()
- && toDistinguish == myShaderManager->MaterialState().ToDistinguish()
- && toMapTexture == myShaderManager->MaterialState().ToMapTexture())
+ else if (myMatFront == aMatState.FrontMaterial()
+ && myMatBack == aMatState.BackMaterial()
+ && toDistinguish == aMatState.ToDistinguish()
+ && toMapTexture == aMatState.ToMapTexture()
+ && anAlphaCutoff == aMatState.AlphaCutoff())
{
return;
}
- myShaderManager->UpdateMaterialStateTo (myMatFront, myMatBack, toDistinguish, toMapTexture);
+ myShaderManager->UpdateMaterialStateTo (myMatFront, myMatBack, anAlphaCutoff, toDistinguish, toMapTexture);
}
// =======================================================================
// function : CheckIsTransparent
// purpose :
// =======================================================================
-Standard_Boolean OpenGl_Context::CheckIsTransparent (const OpenGl_AspectFace* theAspect,
+Standard_Boolean OpenGl_Context::CheckIsTransparent (const OpenGl_Aspects* theAspect,
const Handle(Graphic3d_PresentationAttributes)& theHighlight,
Standard_ShortReal& theAlphaFront,
Standard_ShortReal& theAlphaBack)
{
- const Handle(Graphic3d_AspectFillArea3d)& anAspect = (!theHighlight.IsNull() && !theHighlight->BasicFillAreaAspect().IsNull())
- ? theHighlight->BasicFillAreaAspect()
- : theAspect->Aspect();
+ const Handle(Graphic3d_Aspects)& anAspect = (!theHighlight.IsNull() && !theHighlight->BasicFillAreaAspect().IsNull())
+ ? (const Handle(Graphic3d_Aspects)& )theHighlight->BasicFillAreaAspect()
+ : theAspect->Aspect();
const bool toDistinguish = anAspect->Distinguish();
const Graphic3d_MaterialAspect& aMatFrontSrc = anAspect->FrontMaterial();
theAlphaBack = aMatBackSrc .Alpha();
}
- const bool isTransparent = theAlphaFront < 1.0f
- || theAlphaBack < 1.0f;
- return isTransparent;
+ if (anAspect->AlphaMode() == Graphic3d_AlphaMode_BlendAuto)
+ {
+ return theAlphaFront < 1.0f
+ || theAlphaBack < 1.0f;
+ }
+ return anAspect->AlphaMode() == Graphic3d_AlphaMode_Blend;
}
// =======================================================================
{
if (!myActiveProgram.IsNull())
{
- myActiveProgram->SetUniform (this, myActiveProgram->GetStateLocation (OpenGl_OCCT_COLOR), theColor);
+ if (const OpenGl_ShaderUniformLocation& aLoc = myActiveProgram->GetStateLocation (OpenGl_OCCT_COLOR))
+ {
+ myActiveProgram->SetUniform (this, aLoc, Vec4FromQuantityColor (theColor));
+ }
}
#if !defined(GL_ES_VERSION_2_0)
else if (core11 != NULL)
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_EMPTY:
- case Aspect_TOL_SOLID:
- {
- aPattern = 0xFFFF;
- break;
- }
- case Aspect_TOL_USERDEFINED:
- {
- aPattern = 0xFF24;
- break;
- }
- }
+ SetLineStipple (theFactor, Graphic3d_Aspects::DefaultLinePatternForType (theType));
+}
+// =======================================================================
+// function : SetLineStipple
+// purpose :
+// =======================================================================
+void OpenGl_Context::SetLineStipple (const Standard_ShortReal theFactor,
+ const uint16_t thePattern)
+{
if (!myActiveProgram.IsNull())
{
- myActiveProgram->SetUniform (this, "uPattern", aPattern);
- myActiveProgram->SetUniform (this, "uFactor", theFactor);
+ if (const OpenGl_ShaderUniformLocation aPatternLoc = myActiveProgram->GetStateLocation (OpenGl_OCCT_LINE_STIPPLE_PATTERN))
+ {
+ if (hasGlslBitwiseOps != OpenGl_FeatureNotAvailable)
+ {
+ myActiveProgram->SetUniform (this, aPatternLoc, (Standard_Integer )thePattern);
+ }
+ else
+ {
+ Standard_Integer aPatArr[16] = {};
+ for (unsigned int aBit = 0; aBit < 16; ++aBit)
+ {
+ aPatArr[aBit] = ((unsigned int)(thePattern) & (1U << aBit)) != 0 ? 1 : 0;
+ }
+ myActiveProgram->SetUniform (this, aPatternLoc, 16, aPatArr);
+ }
+ myActiveProgram->SetUniform (this, myActiveProgram->GetStateLocation (OpenGl_OCCT_LINE_STIPPLE_FACTOR), theFactor);
+ }
return;
}
#if !defined(GL_ES_VERSION_2_0)
- if (aPattern != 0xFFFF)
+ if (thePattern != 0xFFFF)
{
- #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));
+ static_cast<GLushort> (thePattern));
}
}
else
{
core11fwd->glDisable (GL_LINE_STIPPLE);
}
-
- #ifdef HAVE_GL2PS
- if (IsFeedback())
- {
- gl2psDisable (GL2PS_LINE_STIPPLE);
- }
- #endif
}
#endif
}
// glLineWidth() is still defined within Core Profile, but has no effect with values != 1.0f
core11fwd->glLineWidth (theWidth * myLineWidthScale);
}
-#ifdef HAVE_GL2PS
- if (IsFeedback())
- {
- gl2psLineWidth (theWidth);
- }
-#endif
}
// =======================================================================
// function : SetTextureMatrix
// purpose :
// =======================================================================
-void OpenGl_Context::SetTextureMatrix (const Handle(Graphic3d_TextureParams)& theParams)
+void OpenGl_Context::SetTextureMatrix (const Handle(Graphic3d_TextureParams)& theParams,
+ const Standard_Boolean theIsTopDown)
{
if (theParams.IsNull())
{
return;
}
- else if (!myActiveProgram.IsNull())
+
+ const Graphic3d_Vec2& aScale = theParams->Scale();
+ const Graphic3d_Vec2& aTrans = theParams->Translation();
+ if (!myActiveProgram.IsNull())
{
const GLint aUniLoc = myActiveProgram->GetStateLocation (OpenGl_OCCT_TEXTURE_TRSF2D);
if (aUniLoc == OpenGl_ShaderProgram::INVALID_LOCATION)
}
// pack transformation parameters
- OpenGl_Vec4 aTrsf[2];
- aTrsf[0].x() = -theParams->Translation().x();
- aTrsf[0].y() = -theParams->Translation().y();
- 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));
+ OpenGl_Vec4 aTrsf[2] =
+ {
+ OpenGl_Vec4 (-aTrans.x(), -aTrans.y(), aScale.x(), aScale.y()),
+ OpenGl_Vec4 (static_cast<float> (std::sin (-theParams->Rotation() * M_PI / 180.0)),
+ static_cast<float> (std::cos (-theParams->Rotation() * M_PI / 180.0)),
+ 0.0f, 0.0f)
+ };
+ if (caps->isTopDownTextureUV != theIsTopDown)
+ {
+ // flip V
+ aTrsf[0].y() = -aTrans.y() + 1.0f / aScale.y();
+ aTrsf[0].w() = -aScale.y();
+ }
myActiveProgram->SetUniform (this, aUniLoc, 2, aTrsf);
return;
}
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);
+ if (caps->isTopDownTextureUV != theIsTopDown)
+ {
+ // flip V
+ Graphic3d_TransformUtils::Scale (aTextureMat, aScale.x(), -aScale.y(), 1.0f);
+ Graphic3d_TransformUtils::Translate (aTextureMat, -aTrans.x(), -aTrans.y() + 1.0f / aScale.y(), 0.0f);
+ }
+ else
+ {
+ 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);
}
return anOldGlNormalize;
}
+// =======================================================================
+// function : SetShadeModel
+// purpose :
+// =======================================================================
+void OpenGl_Context::SetShadeModel (Graphic3d_TypeOfShadingModel theModel)
+{
+#if !defined(GL_ES_VERSION_2_0)
+ if (core11 != NULL)
+ {
+ const Standard_Integer aModel = theModel == Graphic3d_TOSM_FACET
+ || theModel == Graphic3d_TOSM_PBR_FACET ? GL_FLAT : GL_SMOOTH;
+ if (myShadeModel == aModel)
+ {
+ return;
+ }
+ myShadeModel = aModel;
+ core11->glShadeModel (aModel);
+ }
+#else
+ (void )theModel;
+#endif
+}
+
// =======================================================================
// function : SetPolygonMode
// purpose :
return myHatchStyles->SetTypeOfHatch (this, theStyle);
}
+// =======================================================================
+// function : SetPolygonOffset
+// purpose :
+// =======================================================================
+void OpenGl_Context::SetPolygonOffset (const Graphic3d_PolygonOffset& theOffset)
+{
+ const bool toFillOld = (myPolygonOffset.Mode & Aspect_POM_Fill) == Aspect_POM_Fill;
+ const bool toFillNew = (theOffset.Mode & Aspect_POM_Fill) == Aspect_POM_Fill;
+ if (toFillNew != toFillOld)
+ {
+ if (toFillNew)
+ {
+ glEnable (GL_POLYGON_OFFSET_FILL);
+ }
+ else
+ {
+ glDisable (GL_POLYGON_OFFSET_FILL);
+ }
+ }
+
+#if !defined(GL_ES_VERSION_2_0)
+ const bool toLineOld = (myPolygonOffset.Mode & Aspect_POM_Line) == Aspect_POM_Line;
+ const bool toLineNew = (theOffset.Mode & Aspect_POM_Line) == Aspect_POM_Line;
+ if (toLineNew != toLineOld)
+ {
+ if (toLineNew)
+ {
+ glEnable (GL_POLYGON_OFFSET_LINE);
+ }
+ else
+ {
+ glDisable (GL_POLYGON_OFFSET_LINE);
+ }
+ }
+
+ const bool toPointOld = (myPolygonOffset.Mode & Aspect_POM_Point) == Aspect_POM_Point;
+ const bool toPointNew = (theOffset.Mode & Aspect_POM_Point) == Aspect_POM_Point;
+ if (toPointNew != toPointOld)
+ {
+ if (toPointNew)
+ {
+ glEnable (GL_POLYGON_OFFSET_POINT);
+ }
+ else
+ {
+ glDisable (GL_POLYGON_OFFSET_POINT);
+ }
+ }
+#endif
+
+ if (myPolygonOffset.Factor != theOffset.Factor
+ || myPolygonOffset.Units != theOffset.Units)
+ {
+ glPolygonOffset (theOffset.Factor, theOffset.Units);
+ }
+ myPolygonOffset = theOffset;
+}
+
+// =======================================================================
+// function : SetCamera
+// purpose :
+// =======================================================================
+void OpenGl_Context::SetCamera (const Handle(Graphic3d_Camera)& theCamera)
+{
+ myCamera = theCamera;
+ if (!theCamera.IsNull())
+ {
+ ProjectionState.SetCurrent (theCamera->ProjectionMatrixF());
+ WorldViewState .SetCurrent (theCamera->OrientationMatrixF());
+ ApplyProjectionMatrix();
+ ApplyWorldViewMatrix();
+ }
+}
+
// =======================================================================
// function : ApplyModelWorldMatrix
// purpose :
}
#endif
}
+
+// =======================================================================
+// function : SetColorMask
+// purpose :
+// =======================================================================
+bool OpenGl_Context::SetColorMask (bool theToWriteColor)
+{
+ const GLboolean toWrite = theToWriteColor ? GL_TRUE : GL_FALSE;
+ glColorMask (toWrite, toWrite, toWrite, toWrite);
+
+ const bool anOldValue = myColorMask;
+ myColorMask = theToWriteColor;
+ return anOldValue;
+}
+
+// =======================================================================
+// function : SetSampleAlphaToCoverage
+// purpose :
+// =======================================================================
+bool OpenGl_Context::SetSampleAlphaToCoverage (bool theToEnable)
+{
+ bool toEnable = myAllowAlphaToCov && theToEnable;
+ if (myAlphaToCoverage == toEnable)
+ {
+ return myAlphaToCoverage;
+ }
+
+ if (core15fwd != NULL)
+ {
+ if (toEnable)
+ {
+ //core15fwd->core15fwd->glSampleCoverage (1.0f, GL_FALSE);
+ core15fwd->glEnable (GL_SAMPLE_ALPHA_TO_COVERAGE);
+ }
+ else
+ {
+ core15fwd->glDisable (GL_SAMPLE_ALPHA_TO_COVERAGE);
+ }
+ }
+
+ const bool anOldValue = myAlphaToCoverage;
+ myAlphaToCoverage = toEnable;
+ return anOldValue;
+}
+
+// =======================================================================
+// function : GetBufferSubData
+// purpose :
+// =======================================================================
+bool OpenGl_Context::GetBufferSubData (GLenum theTarget, GLintptr theOffset, GLsizeiptr theSize, void* theData)
+{
+ if (!hasGetBufferData)
+ {
+ return false;
+ }
+#ifdef __EMSCRIPTEN__
+ EM_ASM_(
+ {
+ Module.ctx.getBufferSubData($0, $1, HEAPU8.subarray($2, $2 + $3));
+ }, theTarget, theOffset, theData, theSize);
+ return true;
+#elif defined(GL_ES_VERSION_2_0)
+ if (void* aData = core30fwd->glMapBufferRange (theTarget, theOffset, theSize, GL_MAP_READ_BIT))
+ {
+ memcpy (theData, aData, theSize);
+ core30fwd->glUnmapBuffer (theTarget);
+ return true;
+ }
+ return false;
+#else
+ core15fwd->glGetBufferSubData (theTarget, theOffset, theSize, theData);
+ return true;
+#endif
+}
+
+// =======================================================================
+// function : DumpJson
+// purpose :
+// =======================================================================
+void OpenGl_Context::DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth) const
+{
+ OCCT_DUMP_TRANSIENT_CLASS_BEGIN (theOStream)
+
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myAnisoMax)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myTexClamp)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myMaxTexDim)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myMaxTexCombined)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myMaxDumpSizeX)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myMaxDumpSizeY)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myMaxClipPlanes)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myMaxMsaaSamples)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myMaxDrawBuffers)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myMaxColorAttachments)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myGlVerMajor)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myGlVerMinor)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myIsInitialized)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myIsStereoBuffers)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myIsGlNormalizeEnabled)
+
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myHasRayTracing)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myHasRayTracingTextures)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myHasRayTracingAdaptiveSampling)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myHasRayTracingAdaptiveSamplingAtomic)
+
+ for (int i = 0; i < 4; i++)
+ {
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myViewport[i])
+ }
+
+ for (int i = 0; i < 4; i++)
+ {
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myViewportVirt[i])
+ }
+
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myPointSpriteOrig)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myRenderMode)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myPolygonMode)
+ OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, &myPolygonOffset)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myToCullBackFaces)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myReadBuffer)
+
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myDefaultVao)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myColorMask)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myAllowAlphaToCov)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myAlphaToCoverage)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myIsGlDebugCtx)
+
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myResolution)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myResolutionRatio)
+
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myLineWidthScale)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myLineFeather)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myRenderScale)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myRenderScaleInv)
+
+ OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, &ModelWorldState)
+ OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, &WorldViewState)
+ OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, &ProjectionState)
+}
+
+// =======================================================================
+// function : DumpJsonOpenGlState
+// purpose :
+// =======================================================================
+void OpenGl_Context::DumpJsonOpenGlState (Standard_OStream& theOStream, Standard_Integer)
+{
+ GLboolean isEnableBlend = glIsEnabled (GL_BLEND);
+ GLboolean isEnableCullFace = glIsEnabled (GL_CULL_FACE);
+ GLboolean isEnableDepthTest = glIsEnabled (GL_DEPTH_TEST);
+
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, isEnableBlend)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, isEnableCullFace)
+ OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, isEnableDepthTest)
+}
+
projects / occt.git / blobdiff