mirror of
https://git.dev.opencascade.org/repos/occt.git
synced 2025-04-16 10:08:36 +03:00
b9280b8b27
Removed unused exception classes OSD_Exception_FLT_DIVIDE_BY_ZERO, OSD_Exception_INT_DIVIDE_BY_ZERO, OSD_Exception_FLT_DENORMAL_OPERAND, OSD_Exception_FLT_INEXACT_RESULT, OSD_Exception_FLT_INVALID_OPERATION, OSD_Exception_FLT_OVERFLOW, OSD_Exception_FLT_STACK_CHECK, OSD_Exception_FLT_UNDERFLOW.
446 lines
18 KiB
C++
446 lines
18 KiB
C++
// Created by: Kirill GAVRILOV
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// Copyright (c) 2013-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#include <OpenGl_Buffer.hxx>
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#include <OpenGl_GlCore30.hxx>
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#include <OpenGl_ShaderManager.hxx>
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#include <Standard_Assert.hxx>
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IMPLEMENT_STANDARD_RTTIEXT(OpenGl_Buffer, OpenGl_Resource)
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// =======================================================================
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// function : sizeOfGlType
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// purpose :
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// =======================================================================
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size_t OpenGl_Buffer::sizeOfGlType (unsigned int theType)
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{
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switch (theType)
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{
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case GL_BYTE:
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case GL_UNSIGNED_BYTE: return sizeof(Standard_Byte);
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case GL_SHORT:
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case GL_UNSIGNED_SHORT: return sizeof(unsigned short);
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#ifdef GL_INT
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case GL_INT:
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#endif
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case GL_UNSIGNED_INT: return sizeof(unsigned int);
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case GL_FLOAT: return sizeof(float);
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#ifdef GL_DOUBLE
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case GL_DOUBLE: return sizeof(double);
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#endif
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default: return 0;
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}
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}
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// =======================================================================
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// function : FormatTarget
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// purpose :
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// =======================================================================
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TCollection_AsciiString OpenGl_Buffer::FormatTarget (unsigned int theTarget)
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{
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switch (theTarget)
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{
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case GL_ARRAY_BUFFER: return "GL_ARRAY_BUFFER";
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case GL_ELEMENT_ARRAY_BUFFER: return "GL_ELEMENT_ARRAY_BUFFER";
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case GL_PIXEL_UNPACK_BUFFER: return "GL_PIXEL_UNPACK_BUFFER";
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case GL_PIXEL_PACK_BUFFER: return "GL_PIXEL_PACK_BUFFER";
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case GL_UNIFORM_BUFFER: return "GL_UNIFORM_BUFFER";
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case GL_TEXTURE_BUFFER: return "GL_TEXTURE_BUFFER";
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case GL_COPY_READ_BUFFER: return "GL_COPY_READ_BUFFER";
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case GL_COPY_WRITE_BUFFER: return "GL_COPY_WRITE_BUFFER";
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case GL_TRANSFORM_FEEDBACK_BUFFER: return "GL_TRANSFORM_FEEDBACK_BUFFER";
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#ifdef GL_QUERY_BUFFER
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case GL_QUERY_BUFFER: return "GL_QUERY_BUFFER";
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case GL_DRAW_INDIRECT_BUFFER: return "GL_DRAW_INDIRECT_BUFFER";
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case GL_ATOMIC_COUNTER_BUFFER: return "GL_ATOMIC_COUNTER_BUFFER";
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case GL_DISPATCH_INDIRECT_BUFFER: return "GL_DISPATCH_INDIRECT_BUFFER";
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case GL_SHADER_STORAGE_BUFFER: return "GL_SHADER_STORAGE_BUFFER";
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#endif
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}
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return OpenGl_Context::FormatGlEnumHex (theTarget);
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}
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// =======================================================================
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// function : OpenGl_Buffer
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// purpose :
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// =======================================================================
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OpenGl_Buffer::OpenGl_Buffer()
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: OpenGl_Resource(),
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myOffset (NULL),
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myBufferId (NO_BUFFER),
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myComponentsNb (4),
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myElemsNb (0),
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myDataType (GL_FLOAT)
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{
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//
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}
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// =======================================================================
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// function : ~OpenGl_Buffer
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// purpose :
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// =======================================================================
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OpenGl_Buffer::~OpenGl_Buffer()
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{
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Release (NULL);
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}
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// =======================================================================
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// function : Create
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// purpose :
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// =======================================================================
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bool OpenGl_Buffer::Create (const Handle(OpenGl_Context)& theGlCtx)
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{
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if (myBufferId == NO_BUFFER && theGlCtx->core15fwd != NULL)
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{
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theGlCtx->core15fwd->glGenBuffers (1, &myBufferId);
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}
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return myBufferId != NO_BUFFER;
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}
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// =======================================================================
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// function : Release
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// purpose :
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// =======================================================================
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void OpenGl_Buffer::Release (OpenGl_Context* theGlCtx)
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{
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if (myBufferId == NO_BUFFER)
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{
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return;
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}
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// application can not handle this case by exception - this is bug in code
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Standard_ASSERT_RETURN (theGlCtx != NULL,
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"OpenGl_Buffer destroyed without GL context! Possible GPU memory leakage...",);
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if (theGlCtx->IsValid())
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{
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theGlCtx->core15fwd->glDeleteBuffers (1, &myBufferId);
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}
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myOffset = NULL;
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myBufferId = NO_BUFFER;
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}
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// =======================================================================
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// function : Bind
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// purpose :
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// =======================================================================
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void OpenGl_Buffer::Bind (const Handle(OpenGl_Context)& theGlCtx) const
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{
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theGlCtx->core15fwd->glBindBuffer (GetTarget(), myBufferId);
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}
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// =======================================================================
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// function : Unbind
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// purpose :
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// =======================================================================
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void OpenGl_Buffer::Unbind (const Handle(OpenGl_Context)& theGlCtx) const
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{
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theGlCtx->core15fwd->glBindBuffer (GetTarget(), NO_BUFFER);
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}
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// =======================================================================
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// function : BindBufferBase
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// purpose :
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// =======================================================================
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void OpenGl_Buffer::BindBufferBase (const Handle(OpenGl_Context)& theGlCtx,
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unsigned int theIndex)
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{
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theGlCtx->core30->glBindBufferBase (GetTarget(), theIndex, myBufferId);
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}
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// =======================================================================
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// function : UnbindBufferBase
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// purpose :
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// =======================================================================
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void OpenGl_Buffer::UnbindBufferBase (const Handle(OpenGl_Context)& theGlCtx,
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unsigned int theIndex)
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{
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theGlCtx->core30->glBindBufferBase (GetTarget(), theIndex, NO_BUFFER);
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}
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// =======================================================================
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// function : BindBufferRange
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// purpose :
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// =======================================================================
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void OpenGl_Buffer::BindBufferRange (const Handle(OpenGl_Context)& theGlCtx,
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unsigned int theIndex,
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const intptr_t theOffset,
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const size_t theSize)
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{
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theGlCtx->core30->glBindBufferRange (GetTarget(), theIndex, myBufferId, (GLintptr )theOffset, (GLsizeiptr )theSize);
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}
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// =======================================================================
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// function : Init
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// purpose :
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// =======================================================================
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bool OpenGl_Buffer::Init (const Handle(OpenGl_Context)& theGlCtx,
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const unsigned int theComponentsNb,
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const Standard_Integer theElemsNb,
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const float* theData)
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{
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return init (theGlCtx, theComponentsNb, theElemsNb, theData, GL_FLOAT);
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}
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// =======================================================================
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// function : Init
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// purpose :
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// =======================================================================
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bool OpenGl_Buffer::Init (const Handle(OpenGl_Context)& theGlCtx,
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const unsigned int theComponentsNb,
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const Standard_Integer theElemsNb,
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const unsigned int* theData)
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{
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return init (theGlCtx, theComponentsNb, theElemsNb, theData, GL_UNSIGNED_INT);
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}
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// =======================================================================
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// function : Init
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// purpose :
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// =======================================================================
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bool OpenGl_Buffer::Init (const Handle(OpenGl_Context)& theGlCtx,
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const unsigned int theComponentsNb,
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const Standard_Integer theElemsNb,
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const unsigned short* theData)
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{
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return init (theGlCtx, theComponentsNb, theElemsNb, theData, GL_UNSIGNED_SHORT);
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}
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// =======================================================================
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// function : Init
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// purpose :
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// =======================================================================
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bool OpenGl_Buffer::Init (const Handle(OpenGl_Context)& theGlCtx,
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const unsigned int theComponentsNb,
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const Standard_Integer theElemsNb,
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const Standard_Byte* theData)
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{
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return init (theGlCtx, theComponentsNb, theElemsNb, theData, GL_UNSIGNED_BYTE);
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}
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// =======================================================================
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// function : init
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// purpose :
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// =======================================================================
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bool OpenGl_Buffer::init (const Handle(OpenGl_Context)& theGlCtx,
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const unsigned int theComponentsNb,
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const Standard_Integer theElemsNb,
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const void* theData,
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const unsigned int theDataType,
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const Standard_Integer theStride)
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{
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if (!Create (theGlCtx))
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{
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return false;
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}
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Bind (theGlCtx);
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myDataType = theDataType;
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myComponentsNb = theComponentsNb;
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myElemsNb = theElemsNb;
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theGlCtx->core15fwd->glBufferData (GetTarget(), GLsizeiptr(myElemsNb) * theStride, theData, GL_STATIC_DRAW);
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const int anErr = theGlCtx->core15fwd->glGetError();
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if (anErr != GL_NO_ERROR
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&& anErr != GL_OUT_OF_MEMORY) // pass-through out-of-memory error, but log unexpected errors
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{
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theGlCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_ERROR, 0, GL_DEBUG_SEVERITY_HIGH,
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TCollection_AsciiString ("Error: glBufferData (")
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+ FormatTarget (GetTarget()) + ","
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+ OpenGl_Context::FormatSize (GLsizeiptr(myElemsNb) * theStride) + ","
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+ OpenGl_Context::FormatPointer (theData) + ") Id: " + (int )myBufferId
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+ " failed with " + OpenGl_Context::FormatGlError (anErr));
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}
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Unbind (theGlCtx);
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return anErr == GL_NO_ERROR;
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}
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// =======================================================================
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// function : SubData
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// purpose :
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// =======================================================================
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bool OpenGl_Buffer::SubData (const Handle(OpenGl_Context)& theGlCtx,
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const Standard_Integer theElemFrom,
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const Standard_Integer theElemsNb,
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const float* theData)
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{
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return subData (theGlCtx, theElemFrom, theElemsNb, theData, GL_FLOAT);
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}
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// =======================================================================
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// function : SubData
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// purpose :
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// =======================================================================
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bool OpenGl_Buffer::SubData (const Handle(OpenGl_Context)& theGlCtx,
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const Standard_Integer theElemFrom,
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const Standard_Integer theElemsNb,
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const unsigned int* theData)
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{
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return subData (theGlCtx, theElemFrom, theElemsNb, theData, GL_UNSIGNED_INT);
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}
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// =======================================================================
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// function : SubData
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// purpose :
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// =======================================================================
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bool OpenGl_Buffer::SubData (const Handle(OpenGl_Context)& theGlCtx,
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const Standard_Integer theElemFrom,
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const Standard_Integer theElemsNb,
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const unsigned short* theData)
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{
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return subData (theGlCtx, theElemFrom, theElemsNb, theData, GL_UNSIGNED_SHORT);
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}
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// =======================================================================
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// function : SubData
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// purpose :
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// =======================================================================
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bool OpenGl_Buffer::SubData (const Handle(OpenGl_Context)& theGlCtx,
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const Standard_Integer theElemFrom,
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const Standard_Integer theElemsNb,
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const Standard_Byte* theData)
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{
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return subData (theGlCtx, theElemFrom, theElemsNb, theData, GL_UNSIGNED_BYTE);
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}
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// =======================================================================
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// function : subData
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// purpose :
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// =======================================================================
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bool OpenGl_Buffer::subData (const Handle(OpenGl_Context)& theGlCtx,
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const Standard_Integer theElemFrom,
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const Standard_Integer theElemsNb,
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const void* theData,
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const unsigned int theDataType)
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{
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if (!IsValid() || myDataType != theDataType ||
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theElemFrom < 0 || ((theElemFrom + theElemsNb) > myElemsNb))
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{
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return false;
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}
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Bind (theGlCtx);
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const size_t aDataSize = sizeOfGlType (theDataType);
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theGlCtx->core15fwd->glBufferSubData (GetTarget(),
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GLintptr(theElemFrom) * GLintptr (myComponentsNb) * aDataSize, // offset in bytes
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GLsizeiptr(theElemsNb) * GLsizeiptr(myComponentsNb) * aDataSize, // size in bytes
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theData);
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const int anErr = theGlCtx->core15fwd->glGetError();
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if (anErr != GL_NO_ERROR)
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{
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theGlCtx->PushMessage (GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_ERROR, 0, GL_DEBUG_SEVERITY_HIGH,
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TCollection_AsciiString ("Error: glBufferSubData (")
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+ FormatTarget (GetTarget()) + ","
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+ OpenGl_Context::FormatSize (GLintptr(theElemFrom) * GLintptr (myComponentsNb) * aDataSize) + ","
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+ OpenGl_Context::FormatSize (GLsizeiptr(theElemsNb) * GLsizeiptr(myComponentsNb) * aDataSize) + ","
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+ OpenGl_Context::FormatPointer (theData) + ") Id: " + (int )myBufferId
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+ " failed with " + OpenGl_Context::FormatGlError (anErr));
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}
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Unbind (theGlCtx);
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return anErr == GL_NO_ERROR;
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}
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// =======================================================================
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// function : subData
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// purpose :
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// =======================================================================
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bool OpenGl_Buffer::GetSubData (const Handle(OpenGl_Context)& theGlCtx,
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const Standard_Integer theElemFrom,
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const Standard_Integer theElemsNb,
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float* theData)
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{
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return getSubData (theGlCtx, theElemFrom, theElemsNb, theData, GL_FLOAT);
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}
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// =======================================================================
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// function : GetSubData
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// purpose :
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// =======================================================================
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bool OpenGl_Buffer::GetSubData (const Handle(OpenGl_Context)& theGlCtx,
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const Standard_Integer theElemFrom,
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const Standard_Integer theElemsNb,
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unsigned short* theData)
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{
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return getSubData (theGlCtx, theElemFrom, theElemsNb, theData, GL_UNSIGNED_SHORT);
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}
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// =======================================================================
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// function : GetSubData
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// purpose :
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// =======================================================================
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bool OpenGl_Buffer::GetSubData (const Handle(OpenGl_Context)& theGlCtx,
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const Standard_Integer theElemFrom,
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const Standard_Integer theElemsNb,
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unsigned int* theData)
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{
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return getSubData (theGlCtx, theElemFrom, theElemsNb, theData, GL_UNSIGNED_INT);
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}
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// =======================================================================
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// function : GetSubData
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// purpose :
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// =======================================================================
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bool OpenGl_Buffer::GetSubData (const Handle(OpenGl_Context)& theGlCtx,
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const Standard_Integer theElemFrom,
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const Standard_Integer theElemsNb,
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Standard_Byte* theData)
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{
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return getSubData (theGlCtx, theElemFrom, theElemsNb, theData, GL_UNSIGNED_BYTE);
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}
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// =======================================================================
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// function : getSubData
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// purpose :
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// =======================================================================
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bool OpenGl_Buffer::getSubData (const Handle(OpenGl_Context)& theGlCtx,
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const Standard_Integer theElemFrom,
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const Standard_Integer theElemsNb,
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void* theData,
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const unsigned int theDataType)
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{
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if (!IsValid() || myDataType != theDataType
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|| theElemFrom < 0 || ((theElemFrom + theElemsNb) > myElemsNb)
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|| !theGlCtx->hasGetBufferData)
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{
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return false;
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}
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Bind (theGlCtx);
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const size_t aDataSize = sizeOfGlType (theDataType);
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const GLintptr anOffset = GLintptr (theElemFrom) * GLintptr (myComponentsNb) * aDataSize;
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const GLsizeiptr aSize = GLsizeiptr(theElemsNb) * GLsizeiptr(myComponentsNb) * aDataSize;
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bool isDone = theGlCtx->GetBufferSubData (GetTarget(), anOffset, aSize, theData);
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isDone = isDone && (theGlCtx->core15fwd->glGetError() == GL_NO_ERROR);
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Unbind (theGlCtx);
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return isDone;
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}
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// =======================================================================
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// function : DumpJson
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// purpose :
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// =======================================================================
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void OpenGl_Buffer::DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth) const
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{
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OCCT_DUMP_TRANSIENT_CLASS_BEGIN (theOStream)
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OCCT_DUMP_BASE_CLASS (theOStream, theDepth, OpenGl_Resource)
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OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, GetTarget())
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OCCT_DUMP_FIELD_VALUE_POINTER (theOStream, myOffset)
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OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myBufferId)
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OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myComponentsNb)
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OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myElemsNb)
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OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myDataType)
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}
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