id/doom3-bfg
0
0
Fork 0
mirror of https://github.com/id-Software/DOOM-3-BFG.git synced 2024-11-23 12:32:49 +00:00
Code Issues Projects Releases Packages Wiki Activity
doom3-bfg/neo/renderer/BufferObject.cpp

844 lines
23 KiB
C++
Raw Permalink Normal View History

Initial commit
2012-11-26 18:58:24 +00:00
/*
===========================================================================
Doom 3 BFG Edition GPL Source Code
Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
Doom 3 BFG Edition Source Code is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Doom 3 BFG Edition Source Code is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code. If not, please request a copy in writing from id Software at the address below.
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
===========================================================================
*/
#pragma hdrstop
#include "../idlib/precompiled.h"
#include "tr_local.h"
idCVar r_showBuffers( "r_showBuffers", "0", CVAR_INTEGER, "" );
//static const GLenum bufferUsage = GL_STATIC_DRAW_ARB;
static const GLenum bufferUsage = GL_DYNAMIC_DRAW_ARB;
/*
==================
IsWriteCombined
==================
*/
bool IsWriteCombined( void * base ) {
MEMORY_BASIC_INFORMATION info;
SIZE_T size = VirtualQueryEx( GetCurrentProcess(), base, &info, sizeof( info ) );
if ( size == 0 ) {
DWORD error = GetLastError();
error = error;
return false;
}
bool isWriteCombined = ( ( info.AllocationProtect & PAGE_WRITECOMBINE ) != 0 );
return isWriteCombined;
}
/*
================================================================================================
Buffer Objects
================================================================================================
*/
/*
========================
UnbindBufferObjects
========================
*/
void UnbindBufferObjects() {
qglBindBufferARB( GL_ARRAY_BUFFER_ARB, 0 );
qglBindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, 0 );
}
Restored generic (non-SIMD) code
2013-05-29 18:12:13 +00:00
#ifdef ID_WIN_X86_SSE2_INTRIN
Initial commit
2012-11-26 18:58:24 +00:00
void CopyBuffer( byte * dst, const byte * src, int numBytes ) {
assert_16_byte_aligned( dst );
assert_16_byte_aligned( src );
int i = 0;
for ( ; i + 128 <= numBytes; i += 128 ) {
__m128i d0 = _mm_load_si128( (__m128i *)&src[i + 0*16] );
__m128i d1 = _mm_load_si128( (__m128i *)&src[i + 1*16] );
__m128i d2 = _mm_load_si128( (__m128i *)&src[i + 2*16] );
__m128i d3 = _mm_load_si128( (__m128i *)&src[i + 3*16] );
__m128i d4 = _mm_load_si128( (__m128i *)&src[i + 4*16] );
__m128i d5 = _mm_load_si128( (__m128i *)&src[i + 5*16] );
__m128i d6 = _mm_load_si128( (__m128i *)&src[i + 6*16] );
__m128i d7 = _mm_load_si128( (__m128i *)&src[i + 7*16] );
_mm_stream_si128( (__m128i *)&dst[i + 0*16], d0 );
_mm_stream_si128( (__m128i *)&dst[i + 1*16], d1 );
_mm_stream_si128( (__m128i *)&dst[i + 2*16], d2 );
_mm_stream_si128( (__m128i *)&dst[i + 3*16], d3 );
_mm_stream_si128( (__m128i *)&dst[i + 4*16], d4 );
_mm_stream_si128( (__m128i *)&dst[i + 5*16], d5 );
_mm_stream_si128( (__m128i *)&dst[i + 6*16], d6 );
_mm_stream_si128( (__m128i *)&dst[i + 7*16], d7 );
}
for ( ; i + 16 <= numBytes; i += 16 ) {
__m128i d = _mm_load_si128( (__m128i *)&src[i] );
_mm_stream_si128( (__m128i *)&dst[i], d );
}
for ( ; i + 4 <= numBytes; i += 4 ) {
*(uint32 *)&dst[i] = *(const uint32 *)&src[i];
}
for ( ; i < numBytes; i++ ) {
dst[i] = src[i];
}
_mm_sfence();
}
Restored generic (non-SIMD) code
2013-05-29 18:12:13 +00:00
#else
void CopyBuffer( byte * dst, const byte * src, int numBytes ) {
assert_16_byte_aligned( dst );
assert_16_byte_aligned( src );
memcpy( dst, src, numBytes );
}
#endif
Initial commit
2012-11-26 18:58:24 +00:00
/*
================================================================================================
idVertexBuffer
================================================================================================
*/
/*
========================
idVertexBuffer::idVertexBuffer
========================
*/
idVertexBuffer::idVertexBuffer() {
size = 0;
offsetInOtherBuffer = OWNS_BUFFER_FLAG;
apiObject = NULL;
SetUnmapped();
}
/*
========================
idVertexBuffer::~idVertexBuffer
========================
*/
idVertexBuffer::~idVertexBuffer() {
FreeBufferObject();
}
/*
========================
idVertexBuffer::AllocBufferObject
========================
*/
bool idVertexBuffer::AllocBufferObject( const void * data, int allocSize ) {
assert( apiObject == NULL );
assert_16_byte_aligned( data );
if ( allocSize <= 0 ) {
idLib::Error( "idVertexBuffer::AllocBufferObject: allocSize = %i", allocSize );
}
size = allocSize;
bool allocationFailed = false;
int numBytes = GetAllocedSize();
// clear out any previous error
qglGetError();
GLuint bufferObject = 0xFFFF;
qglGenBuffersARB( 1, & bufferObject );
if ( bufferObject == 0xFFFF ) {
idLib::FatalError( "idVertexBuffer::AllocBufferObject: failed" );
}
qglBindBufferARB( GL_ARRAY_BUFFER_ARB, bufferObject );
// these are rewritten every frame
qglBufferDataARB( GL_ARRAY_BUFFER_ARB, numBytes, NULL, bufferUsage );
apiObject = reinterpret_cast< void * >( bufferObject );
GLenum err = qglGetError();
if ( err == GL_OUT_OF_MEMORY ) {
idLib::Warning( "idVertexBuffer::AllocBufferObject: allocation failed" );
allocationFailed = true;
}
if ( r_showBuffers.GetBool() ) {
idLib::Printf( "vertex buffer alloc %p, api %p (%i bytes)\n", this, GetAPIObject(), GetSize() );
}
// copy the data
if ( data != NULL ) {
Update( data, allocSize );
}
return !allocationFailed;
}
/*
========================
idVertexBuffer::FreeBufferObject
========================
*/
void idVertexBuffer::FreeBufferObject() {
if ( IsMapped() ) {
UnmapBuffer();
}
// if this is a sub-allocation inside a larger buffer, don't actually free anything.
if ( OwnsBuffer() == false ) {
ClearWithoutFreeing();
return;
}
if ( apiObject == NULL ) {
return;
}
if ( r_showBuffers.GetBool() ) {
idLib::Printf( "vertex buffer free %p, api %p (%i bytes)\n", this, GetAPIObject(), GetSize() );
}
GLuint bufferObject = reinterpret_cast< GLuint >( apiObject );
qglDeleteBuffersARB( 1, & bufferObject );
ClearWithoutFreeing();
}
/*
========================
idVertexBuffer::Reference
========================
*/
void idVertexBuffer::Reference( const idVertexBuffer & other ) {
assert( IsMapped() == false );
//assert( other.IsMapped() == false ); // this happens when building idTriangles while at the same time setting up idDrawVerts
assert( other.GetAPIObject() != NULL );
assert( other.GetSize() > 0 );
FreeBufferObject();
size = other.GetSize(); // this strips the MAPPED_FLAG
offsetInOtherBuffer = other.GetOffset(); // this strips the OWNS_BUFFER_FLAG
apiObject = other.apiObject;
assert( OwnsBuffer() == false );
}
/*
========================
idVertexBuffer::Reference
========================
*/
void idVertexBuffer::Reference( const idVertexBuffer & other, int refOffset, int refSize ) {
assert( IsMapped() == false );
//assert( other.IsMapped() == false ); // this happens when building idTriangles while at the same time setting up idDrawVerts
assert( other.GetAPIObject() != NULL );
assert( refOffset >= 0 );
assert( refSize >= 0 );
assert( refOffset + refSize <= other.GetSize() );
FreeBufferObject();
size = refSize;
offsetInOtherBuffer = other.GetOffset() + refOffset;
apiObject = other.apiObject;
assert( OwnsBuffer() == false );
}
/*
========================
idVertexBuffer::Update
========================
*/
void idVertexBuffer::Update( const void * data, int updateSize ) const {
assert( apiObject != NULL );
assert( IsMapped() == false );
assert_16_byte_aligned( data );
assert( ( GetOffset() & 15 ) == 0 );
if ( updateSize > size ) {
idLib::FatalError( "idVertexBuffer::Update: size overrun, %i > %i\n", updateSize, GetSize() );
}
int numBytes = ( updateSize + 15 ) & ~15;
GLuint bufferObject = reinterpret_cast< GLuint >( apiObject );
qglBindBufferARB( GL_ARRAY_BUFFER_ARB, bufferObject );
qglBufferSubDataARB( GL_ARRAY_BUFFER_ARB, GetOffset(), (GLsizeiptrARB)numBytes, data );
/*
void * buffer = MapBuffer( BM_WRITE );
CopyBuffer( (byte *)buffer + GetOffset(), (byte *)data, numBytes );
UnmapBuffer();
*/
}
/*
========================
idVertexBuffer::MapBuffer
========================
*/
void * idVertexBuffer::MapBuffer( bufferMapType_t mapType ) const {
assert( apiObject != NULL );
assert( IsMapped() == false );
void * buffer = NULL;
GLuint bufferObject = reinterpret_cast< GLuint >( apiObject );
qglBindBufferARB( GL_ARRAY_BUFFER_ARB, bufferObject );
if ( mapType == BM_READ ) {
//buffer = qglMapBufferARB( GL_ARRAY_BUFFER_ARB, GL_READ_ONLY_ARB );
buffer = qglMapBufferRange( GL_ARRAY_BUFFER_ARB, 0, GetAllocedSize(), GL_MAP_READ_BIT | GL_MAP_INVALIDATE_RANGE_BIT | GL_MAP_UNSYNCHRONIZED_BIT );
if ( buffer != NULL ) {
buffer = (byte *)buffer + GetOffset();
}
} else if ( mapType == BM_WRITE ) {
//buffer = qglMapBufferARB( GL_ARRAY_BUFFER_ARB, GL_WRITE_ONLY_ARB );
buffer = qglMapBufferRange( GL_ARRAY_BUFFER_ARB, 0, GetAllocedSize(), GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_RANGE_BIT | GL_MAP_UNSYNCHRONIZED_BIT );
if ( buffer != NULL ) {
buffer = (byte *)buffer + GetOffset();
}
assert( IsWriteCombined( buffer ) );
} else {
assert( false );
}
SetMapped();
if ( buffer == NULL ) {
idLib::FatalError( "idVertexBuffer::MapBuffer: failed" );
}
return buffer;
}
/*
========================
idVertexBuffer::UnmapBuffer
========================
*/
void idVertexBuffer::UnmapBuffer() const {
assert( apiObject != NULL );
assert( IsMapped() );
GLuint bufferObject = reinterpret_cast< GLuint >( apiObject );
qglBindBufferARB( GL_ARRAY_BUFFER_ARB, bufferObject );
if ( !qglUnmapBufferARB( GL_ARRAY_BUFFER_ARB ) ) {
idLib::Printf( "idVertexBuffer::UnmapBuffer failed\n" );
}
SetUnmapped();
}
/*
========================
idVertexBuffer::ClearWithoutFreeing
========================
*/
void idVertexBuffer::ClearWithoutFreeing() {
size = 0;
offsetInOtherBuffer = OWNS_BUFFER_FLAG;
apiObject = NULL;
}
/*
================================================================================================
idIndexBuffer
================================================================================================
*/
/*
========================
idIndexBuffer::idIndexBuffer
========================
*/
idIndexBuffer::idIndexBuffer() {
size = 0;
offsetInOtherBuffer = OWNS_BUFFER_FLAG;
apiObject = NULL;
SetUnmapped();
}
/*
========================
idIndexBuffer::~idIndexBuffer
========================
*/
idIndexBuffer::~idIndexBuffer() {
FreeBufferObject();
}
/*
========================
idIndexBuffer::AllocBufferObject
========================
*/
bool idIndexBuffer::AllocBufferObject( const void * data, int allocSize ) {
assert( apiObject == NULL );
assert_16_byte_aligned( data );
if ( allocSize <= 0 ) {
idLib::Error( "idIndexBuffer::AllocBufferObject: allocSize = %i", allocSize );
}
size = allocSize;
bool allocationFailed = false;
int numBytes = GetAllocedSize();
// clear out any previous error
qglGetError();
GLuint bufferObject = 0xFFFF;
qglGenBuffersARB( 1, & bufferObject );
if ( bufferObject == 0xFFFF ) {
GLenum error = qglGetError();
idLib::FatalError( "idIndexBuffer::AllocBufferObject: failed - GL_Error %d", error );
}
qglBindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, bufferObject );
// these are rewritten every frame
qglBufferDataARB( GL_ELEMENT_ARRAY_BUFFER_ARB, numBytes, NULL, bufferUsage );
apiObject = reinterpret_cast< void * >( bufferObject );
GLenum err = qglGetError();
if ( err == GL_OUT_OF_MEMORY ) {
idLib::Warning( "idIndexBuffer:AllocBufferObject: allocation failed" );
allocationFailed = true;
}
if ( r_showBuffers.GetBool() ) {
idLib::Printf( "index buffer alloc %p, api %p (%i bytes)\n", this, GetAPIObject(), GetSize() );
}
// copy the data
if ( data != NULL ) {
Update( data, allocSize );
}
return !allocationFailed;
}
/*
========================
idIndexBuffer::FreeBufferObject
========================
*/
void idIndexBuffer::FreeBufferObject() {
if ( IsMapped() ) {
UnmapBuffer();
}
// if this is a sub-allocation inside a larger buffer, don't actually free anything.
if ( OwnsBuffer() == false ) {
ClearWithoutFreeing();
return;
}
if ( apiObject == NULL ) {
return;
}
if ( r_showBuffers.GetBool() ) {
idLib::Printf( "index buffer free %p, api %p (%i bytes)\n", this, GetAPIObject(), GetSize() );
}
GLuint bufferObject = reinterpret_cast< GLuint >( apiObject );
qglDeleteBuffersARB( 1, & bufferObject );
ClearWithoutFreeing();
}
/*
========================
idIndexBuffer::Reference
========================
*/
void idIndexBuffer::Reference( const idIndexBuffer & other ) {
assert( IsMapped() == false );
//assert( other.IsMapped() == false ); // this happens when building idTriangles while at the same time setting up triIndex_t
assert( other.GetAPIObject() != NULL );
assert( other.GetSize() > 0 );
FreeBufferObject();
size = other.GetSize(); // this strips the MAPPED_FLAG
offsetInOtherBuffer = other.GetOffset(); // this strips the OWNS_BUFFER_FLAG
apiObject = other.apiObject;
assert( OwnsBuffer() == false );
}
/*
========================
idIndexBuffer::Reference
========================
*/
void idIndexBuffer::Reference( const idIndexBuffer & other, int refOffset, int refSize ) {
assert( IsMapped() == false );
//assert( other.IsMapped() == false ); // this happens when building idTriangles while at the same time setting up triIndex_t
assert( other.GetAPIObject() != NULL );
assert( refOffset >= 0 );
assert( refSize >= 0 );
assert( refOffset + refSize <= other.GetSize() );
FreeBufferObject();
size = refSize;
offsetInOtherBuffer = other.GetOffset() + refOffset;
apiObject = other.apiObject;
assert( OwnsBuffer() == false );
}
/*
========================
idIndexBuffer::Update
========================
*/
void idIndexBuffer::Update( const void * data, int updateSize ) const {
assert( apiObject != NULL );
assert( IsMapped() == false );
assert_16_byte_aligned( data );
assert( ( GetOffset() & 15 ) == 0 );
if ( updateSize > size ) {
idLib::FatalError( "idIndexBuffer::Update: size overrun, %i > %i\n", updateSize, GetSize() );
}
int numBytes = ( updateSize + 15 ) & ~15;
GLuint bufferObject = reinterpret_cast< GLuint >( apiObject );
qglBindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, bufferObject );
qglBufferSubDataARB( GL_ELEMENT_ARRAY_BUFFER_ARB, GetOffset(), (GLsizeiptrARB)numBytes, data );
/*
void * buffer = MapBuffer( BM_WRITE );
CopyBuffer( (byte *)buffer + GetOffset(), (byte *)data, numBytes );
UnmapBuffer();
*/
}
/*
========================
idIndexBuffer::MapBuffer
========================
*/
void * idIndexBuffer::MapBuffer( bufferMapType_t mapType ) const {
assert( apiObject != NULL );
assert( IsMapped() == false );
void * buffer = NULL;
GLuint bufferObject = reinterpret_cast< GLuint >( apiObject );
qglBindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, bufferObject );
if ( mapType == BM_READ ) {
//buffer = qglMapBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, GL_READ_ONLY_ARB );
buffer = qglMapBufferRange( GL_ELEMENT_ARRAY_BUFFER_ARB, 0, GetAllocedSize(), GL_MAP_READ_BIT | GL_MAP_INVALIDATE_RANGE_BIT | GL_MAP_UNSYNCHRONIZED_BIT );
if ( buffer != NULL ) {
buffer = (byte *)buffer + GetOffset();
}
} else if ( mapType == BM_WRITE ) {
//buffer = qglMapBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, GL_WRITE_ONLY_ARB );
buffer = qglMapBufferRange( GL_ELEMENT_ARRAY_BUFFER_ARB, 0, GetAllocedSize(), GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_RANGE_BIT | GL_MAP_UNSYNCHRONIZED_BIT );
if ( buffer != NULL ) {
buffer = (byte *)buffer + GetOffset();
}
assert( IsWriteCombined( buffer ) );
} else {
assert( false );
}
SetMapped();
if ( buffer == NULL ) {
idLib::FatalError( "idIndexBuffer::MapBuffer: failed" );
}
return buffer;
}
/*
========================
idIndexBuffer::UnmapBuffer
========================
*/
void idIndexBuffer::UnmapBuffer() const {
assert( apiObject != NULL );
assert( IsMapped() );
GLuint bufferObject = reinterpret_cast< GLuint >( apiObject );
qglBindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, bufferObject );
if ( !qglUnmapBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB ) ) {
idLib::Printf( "idIndexBuffer::UnmapBuffer failed\n" );
}
SetUnmapped();
}
/*
========================
idIndexBuffer::ClearWithoutFreeing
========================
*/
void idIndexBuffer::ClearWithoutFreeing() {
size = 0;
offsetInOtherBuffer = OWNS_BUFFER_FLAG;
apiObject = NULL;
}
/*
================================================================================================
idJointBuffer
================================================================================================
*/
/*
========================
idJointBuffer::idJointBuffer
========================
*/
idJointBuffer::idJointBuffer() {
numJoints = 0;
offsetInOtherBuffer = OWNS_BUFFER_FLAG;
apiObject = NULL;
SetUnmapped();
}
/*
========================
idJointBuffer::~idJointBuffer
========================
*/
idJointBuffer::~idJointBuffer() {
FreeBufferObject();
}
/*
========================
idJointBuffer::AllocBufferObject
========================
*/
bool idJointBuffer::AllocBufferObject( const float * joints, int numAllocJoints ) {
assert( apiObject == NULL );
assert_16_byte_aligned( joints );
if ( numAllocJoints <= 0 ) {
idLib::Error( "idJointBuffer::AllocBufferObject: joints = %i", numAllocJoints );
}
numJoints = numAllocJoints;
bool allocationFailed = false;
const int numBytes = GetAllocedSize();
GLuint buffer = 0;
qglGenBuffersARB( 1, &buffer );
qglBindBufferARB( GL_UNIFORM_BUFFER, buffer );
qglBufferDataARB( GL_UNIFORM_BUFFER, numBytes, NULL, GL_STREAM_DRAW_ARB );
qglBindBufferARB( GL_UNIFORM_BUFFER, 0);
apiObject = reinterpret_cast< void * >( buffer );
if ( r_showBuffers.GetBool() ) {
idLib::Printf( "joint buffer alloc %p, api %p (%i joints)\n", this, GetAPIObject(), GetNumJoints() );
}
// copy the data
if ( joints != NULL ) {
Update( joints, numAllocJoints );
}
return !allocationFailed;
}
/*
========================
idJointBuffer::FreeBufferObject
========================
*/
void idJointBuffer::FreeBufferObject() {
if ( IsMapped() ) {
UnmapBuffer();
}
// if this is a sub-allocation inside a larger buffer, don't actually free anything.
if ( OwnsBuffer() == false ) {
ClearWithoutFreeing();
return;
}
if ( apiObject == NULL ) {
return;
}
if ( r_showBuffers.GetBool() ) {
idLib::Printf( "joint buffer free %p, api %p (%i joints)\n", this, GetAPIObject(), GetNumJoints() );
}
GLuint buffer = reinterpret_cast< GLuint > ( apiObject );
qglBindBufferARB( GL_UNIFORM_BUFFER, 0 );
qglDeleteBuffersARB( 1, & buffer );
ClearWithoutFreeing();
}
/*
========================
idJointBuffer::Reference
========================
*/
void idJointBuffer::Reference( const idJointBuffer & other ) {
assert( IsMapped() == false );
assert( other.IsMapped() == false );
assert( other.GetAPIObject() != NULL );
assert( other.GetNumJoints() > 0 );
FreeBufferObject();
numJoints = other.GetNumJoints(); // this strips the MAPPED_FLAG
offsetInOtherBuffer = other.GetOffset(); // this strips the OWNS_BUFFER_FLAG
apiObject = other.apiObject;
assert( OwnsBuffer() == false );
}
/*
========================
idJointBuffer::Reference
========================
*/
void idJointBuffer::Reference( const idJointBuffer & other, int jointRefOffset, int numRefJoints ) {
assert( IsMapped() == false );
assert( other.IsMapped() == false );
assert( other.GetAPIObject() != NULL );
assert( jointRefOffset >= 0 );
assert( numRefJoints >= 0 );
assert( jointRefOffset + numRefJoints * sizeof( idJointMat ) <= other.GetNumJoints() * sizeof( idJointMat ) );
assert_16_byte_aligned( numRefJoints * 3 * 4 * sizeof( float ) );
FreeBufferObject();
numJoints = numRefJoints;
offsetInOtherBuffer = other.GetOffset() + jointRefOffset;
apiObject = other.apiObject;
assert( OwnsBuffer() == false );
}
/*
========================
idJointBuffer::Update
========================
*/
void idJointBuffer::Update( const float * joints, int numUpdateJoints ) const {
assert( apiObject != NULL );
assert( IsMapped() == false );
assert_16_byte_aligned( joints );
assert( ( GetOffset() & 15 ) == 0 );
if ( numUpdateJoints > numJoints ) {
idLib::FatalError( "idJointBuffer::Update: size overrun, %i > %i\n", numUpdateJoints, numJoints );
}
const int numBytes = numUpdateJoints * 3 * 4 * sizeof( float );
qglBindBufferARB( GL_UNIFORM_BUFFER, reinterpret_cast< GLuint >( apiObject ) );
qglBufferSubDataARB( GL_UNIFORM_BUFFER, GetOffset(), (GLsizeiptrARB)numBytes, joints );
}
/*
========================
idJointBuffer::MapBuffer
========================
*/
float * idJointBuffer::MapBuffer( bufferMapType_t mapType ) const {
assert( IsMapped() == false );
assert( mapType == BM_WRITE );
assert( apiObject != NULL );
int numBytes = GetAllocedSize();
void * buffer = NULL;
qglBindBufferARB( GL_UNIFORM_BUFFER, reinterpret_cast< GLuint >( apiObject ) );
numBytes = numBytes;
assert( GetOffset() == 0 );
//buffer = qglMapBufferARB( GL_UNIFORM_BUFFER, GL_WRITE_ONLY_ARB );
buffer = qglMapBufferRange( GL_UNIFORM_BUFFER, 0, GetAllocedSize(), GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_RANGE_BIT | GL_MAP_UNSYNCHRONIZED_BIT );
if ( buffer != NULL ) {
buffer = (byte *)buffer + GetOffset();
}
SetMapped();
if ( buffer == NULL ) {
idLib::FatalError( "idJointBuffer::MapBuffer: failed" );
}
return (float *) buffer;
}
/*
========================
idJointBuffer::UnmapBuffer
========================
*/
void idJointBuffer::UnmapBuffer() const {
assert( apiObject != NULL );
assert( IsMapped() );
qglBindBufferARB( GL_UNIFORM_BUFFER, reinterpret_cast< GLuint >( apiObject ) );
if ( !qglUnmapBufferARB( GL_UNIFORM_BUFFER ) ) {
idLib::Printf( "idJointBuffer::UnmapBuffer failed\n" );
}
SetUnmapped();
}
/*
========================
idJointBuffer::ClearWithoutFreeing
========================
*/
void idJointBuffer::ClearWithoutFreeing() {
numJoints = 0;
offsetInOtherBuffer = OWNS_BUFFER_FLAG;
apiObject = NULL;
}
/*
========================
idJointBuffer::Swap
========================
*/
void idJointBuffer::Swap( idJointBuffer & other ) {
// Make sure the ownership of the buffer is not transferred to an unintended place.
assert( other.OwnsBuffer() == OwnsBuffer() );
SwapValues( other.numJoints, numJoints );
SwapValues( other.offsetInOtherBuffer, offsetInOtherBuffer );
SwapValues( other.apiObject, apiObject );
}
Reference in a new issue Copy permalink