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doom3-bfg/neo/renderer/Image_load.cpp
Robert Beckebans 277964f074 Because I can :) 
- Implemented soft shadows using PCF hardware shadow mapping

  The implementation uses sampler2DArrayShadow and PCF which usually
  requires Direct3D 10.1 however it is in the OpenGL 3.2 core so it should
  be widely supported.
  All 3 light types are supported which means parallel lights (sun) use
  scene independent cascaded shadow mapping.
  The implementation is very fast with single taps (400 fps average per
  scene on a GTX 660 ti OC) however I defaulted it to 16 taps so the shadows look
  really good which should you give stable 100 fps on todays hardware.

  The shadow filtering algorithm is based on Carmack's research which was
  released in the original Doom 3 GPL release draw_exp.cpp.

- Changed interaction shaders to use Half-Lambert lighting like in HL2 to
  make the game less dark

- Fixed some of the renderer debugging/development tools like r_showTris
2014-05-10 14:40:01 +02:00

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/*
===========================================================================
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 "precompiled.h"
#include "tr_local.h"
/*
================
BitsForFormat
================
*/
int BitsForFormat( textureFormat_t format )
{
switch( format )
{
case FMT_NONE:
return 0;
case FMT_RGBA8:
return 32;
case FMT_XRGB8:
return 32;
case FMT_RGB565:
return 16;
case FMT_L8A8:
return 16;
case FMT_ALPHA:
return 8;
case FMT_LUM8:
return 8;
case FMT_INT8:
return 8;
case FMT_DXT1:
return 4;
case FMT_DXT5:
return 8;
case FMT_SHADOW_ARRAY:
return ( 32 * 6 );
case FMT_DEPTH:
return 32;
case FMT_X16:
return 16;
case FMT_Y16_X16:
return 32;
default:
assert( 0 );
return 0;
}
}
/*
========================
idImage::DeriveOpts
========================
*/
ID_INLINE void idImage::DeriveOpts()
{
if( opts.format == FMT_NONE )
{
opts.colorFormat = CFM_DEFAULT;
switch( usage )
{
case TD_COVERAGE:
opts.format = FMT_DXT1;
opts.colorFormat = CFM_GREEN_ALPHA;
break;
case TD_DEPTH:
opts.format = FMT_DEPTH;
break;
case TD_SHADOW_ARRAY:
opts.format = FMT_SHADOW_ARRAY;
break;
case TD_DIFFUSE:
// TD_DIFFUSE gets only set to when its a diffuse texture for an interaction
opts.gammaMips = true;
opts.format = FMT_DXT5;
opts.colorFormat = CFM_YCOCG_DXT5;
break;
case TD_SPECULAR:
opts.gammaMips = true;
opts.format = FMT_DXT1;
opts.colorFormat = CFM_DEFAULT;
break;
case TD_DEFAULT:
opts.gammaMips = true;
opts.format = FMT_DXT5;
opts.colorFormat = CFM_DEFAULT;
break;
case TD_BUMP:
opts.format = FMT_DXT5;
opts.colorFormat = CFM_NORMAL_DXT5;
break;
case TD_FONT:
opts.format = FMT_DXT1;
opts.colorFormat = CFM_GREEN_ALPHA;
opts.numLevels = 4; // We only support 4 levels because we align to 16 in the exporter
opts.gammaMips = true;
break;
case TD_LIGHT:
opts.format = FMT_RGB565;
opts.gammaMips = true;
break;
case TD_LOOKUP_TABLE_MONO:
opts.format = FMT_INT8;
break;
case TD_LOOKUP_TABLE_ALPHA:
opts.format = FMT_ALPHA;
break;
case TD_LOOKUP_TABLE_RGB1:
case TD_LOOKUP_TABLE_RGBA:
opts.format = FMT_RGBA8;
break;
default:
assert( false );
opts.format = FMT_RGBA8;
}
}
if( opts.numLevels == 0 )
{
opts.numLevels = 1;
if( filter == TF_LINEAR || filter == TF_NEAREST )
{
// don't create mip maps if we aren't going to be using them
}
else
{
int temp_width = opts.width;
int temp_height = opts.height;
while( temp_width > 1 || temp_height > 1 )
{
temp_width >>= 1;
temp_height >>= 1;
if( ( opts.format == FMT_DXT1 || opts.format == FMT_DXT5 ) &&
( ( temp_width & 0x3 ) != 0 || ( temp_height & 0x3 ) != 0 ) )
{
break;
}
opts.numLevels++;
}
}
}
}
/*
========================
idImage::AllocImage
========================
*/
void idImage::AllocImage( const idImageOpts& imgOpts, textureFilter_t tf, textureRepeat_t tr )
{
filter = tf;
repeat = tr;
opts = imgOpts;
DeriveOpts();
AllocImage();
}
/*
================
GenerateImage
================
*/
void idImage::GenerateImage( const byte* pic, int width, int height, textureFilter_t filterParm, textureRepeat_t repeatParm, textureUsage_t usageParm )
{
PurgeImage();
filter = filterParm;
repeat = repeatParm;
usage = usageParm;
cubeFiles = CF_2D;
opts.textureType = TT_2D;
opts.width = width;
opts.height = height;
opts.numLevels = 0;
DeriveOpts();
// if we don't have a rendering context, just return after we
// have filled in the parms. We must have the values set, or
// an image match from a shader before the render starts would miss
// the generated texture
if( !R_IsInitialized() )
{
return;
}
idBinaryImage im( GetName() );
im.Load2DFromMemory( width, height, pic, opts.numLevels, opts.format, opts.colorFormat, opts.gammaMips );
AllocImage();
for( int i = 0; i < im.NumImages(); i++ )
{
const bimageImage_t& img = im.GetImageHeader( i );
const byte* data = im.GetImageData( i );
SubImageUpload( img.level, 0, 0, img.destZ, img.width, img.height, data );
}
}
/*
====================
GenerateCubeImage
Non-square cube sides are not allowed
====================
*/
void idImage::GenerateCubeImage( const byte* pic[6], int size, textureFilter_t filterParm, textureUsage_t usageParm )
{
PurgeImage();
filter = filterParm;
repeat = TR_CLAMP;
usage = usageParm;
cubeFiles = CF_NATIVE;
opts.textureType = TT_CUBIC;
opts.width = size;
opts.height = size;
opts.numLevels = 0;
DeriveOpts();
// if we don't have a rendering context, just return after we
// have filled in the parms. We must have the values set, or
// an image match from a shader before the render starts would miss
// the generated texture
if( !R_IsInitialized() )
{
return;
}
idBinaryImage im( GetName() );
im.LoadCubeFromMemory( size, pic, opts.numLevels, opts.format, opts.gammaMips );
AllocImage();
for( int i = 0; i < im.NumImages(); i++ )
{
const bimageImage_t& img = im.GetImageHeader( i );
const byte* data = im.GetImageData( i );
SubImageUpload( img.level, 0, 0, img.destZ, img.width, img.height, data );
}
}
// RB begin
void idImage::GenerateShadowArray( int width, int height, textureFilter_t filterParm, textureRepeat_t repeatParm, textureUsage_t usageParm )
{
PurgeImage();
filter = filterParm;
repeat = repeatParm;
usage = usageParm;
cubeFiles = CF_2D_ARRAY;
opts.textureType = TT_2D_ARRAY;
opts.width = width;
opts.height = height;
opts.numLevels = 0;
DeriveOpts();
// if we don't have a rendering context, just return after we
// have filled in the parms. We must have the values set, or
// an image match from a shader before the render starts would miss
// the generated texture
if( !R_IsInitialized() )
{
return;
}
//idBinaryImage im( GetName() );
//im.Load2DFromMemory( width, height, pic, opts.numLevels, opts.format, opts.colorFormat, opts.gammaMips );
AllocImage();
/*
for( int i = 0; i < im.NumImages(); i++ )
{
const bimageImage_t& img = im.GetImageHeader( i );
const byte* data = im.GetImageData( i );
SubImageUpload( img.level, 0, 0, img.destZ, img.width, img.height, data );
}
*/
}
// RB end
/*
===============
GetGeneratedName
name contains GetName() upon entry
===============
*/
void idImage::GetGeneratedName( idStr& _name, const textureUsage_t& _usage, const cubeFiles_t& _cube )
{
idStrStatic< 64 > extension;
_name.ExtractFileExtension( extension );
_name.StripFileExtension();
_name += va( "#__%02d%02d", ( int )_usage, ( int )_cube );
if( extension.Length() > 0 )
{
_name.SetFileExtension( extension );
}
}
/*
===============
ActuallyLoadImage
Absolutely every image goes through this path
On exit, the idImage will have a valid OpenGL texture number that can be bound
===============
*/
void idImage::ActuallyLoadImage( bool fromBackEnd )
{
// if we don't have a rendering context yet, just return
if( !R_IsInitialized() )
{
return;
}
// this is the ONLY place generatorFunction will ever be called
if( generatorFunction )
{
generatorFunction( this );
return;
}
if( com_productionMode.GetInteger() != 0 )
{
sourceFileTime = FILE_NOT_FOUND_TIMESTAMP;
if( cubeFiles != CF_2D )
{
opts.textureType = TT_CUBIC;
repeat = TR_CLAMP;
}
}
else
{
// RB begin
if( cubeFiles == CF_2D_ARRAY )
{
opts.textureType = TT_2D_ARRAY;
}
// RB end
else if( cubeFiles != CF_2D )
{
opts.textureType = TT_CUBIC;
repeat = TR_CLAMP;
R_LoadCubeImages( GetName(), cubeFiles, NULL, NULL, &sourceFileTime );
}
else
{
opts.textureType = TT_2D;
R_LoadImageProgram( GetName(), NULL, NULL, NULL, &sourceFileTime, &usage );
}
}
// Figure out opts.colorFormat and opts.format so we can make sure the binary image is up to date
DeriveOpts();
idStrStatic< MAX_OSPATH > generatedName = GetName();
GetGeneratedName( generatedName, usage, cubeFiles );
idBinaryImage im( generatedName );
binaryFileTime = im.LoadFromGeneratedFile( sourceFileTime );
// BFHACK, do not want to tweak on buildgame so catch these images here
if( binaryFileTime == FILE_NOT_FOUND_TIMESTAMP && fileSystem->UsingResourceFiles() )
{
int c = 1;
while( c-- > 0 )
{
if( generatedName.Find( "guis/assets/white#__0000", false ) >= 0 )
{
generatedName.Replace( "white#__0000", "white#__0200" );
im.SetName( generatedName );
binaryFileTime = im.LoadFromGeneratedFile( sourceFileTime );
break;
}
if( generatedName.Find( "guis/assets/white#__0100", false ) >= 0 )
{
generatedName.Replace( "white#__0100", "white#__0200" );
im.SetName( generatedName );
binaryFileTime = im.LoadFromGeneratedFile( sourceFileTime );
break;
}
if( generatedName.Find( "textures/black#__0100", false ) >= 0 )
{
generatedName.Replace( "black#__0100", "black#__0200" );
im.SetName( generatedName );
binaryFileTime = im.LoadFromGeneratedFile( sourceFileTime );
break;
}
if( generatedName.Find( "textures/decals/bulletglass1_d#__0100", false ) >= 0 )
{
generatedName.Replace( "bulletglass1_d#__0100", "bulletglass1_d#__0200" );
im.SetName( generatedName );
binaryFileTime = im.LoadFromGeneratedFile( sourceFileTime );
break;
}
if( generatedName.Find( "models/monsters/skeleton/skeleton01_d#__1000", false ) >= 0 )
{
generatedName.Replace( "skeleton01_d#__1000", "skeleton01_d#__0100" );
im.SetName( generatedName );
binaryFileTime = im.LoadFromGeneratedFile( sourceFileTime );
break;
}
}
}
const bimageFile_t& header = im.GetFileHeader();
if( ( fileSystem->InProductionMode() && binaryFileTime != FILE_NOT_FOUND_TIMESTAMP ) || ( ( binaryFileTime != FILE_NOT_FOUND_TIMESTAMP )
&& ( header.colorFormat == opts.colorFormat )
&& ( header.format == opts.format )
&& ( header.textureType == opts.textureType )
) )
{
opts.width = header.width;
opts.height = header.height;
opts.numLevels = header.numLevels;
opts.colorFormat = ( textureColor_t )header.colorFormat;
opts.format = ( textureFormat_t )header.format;
opts.textureType = ( textureType_t )header.textureType;
if( cvarSystem->GetCVarBool( "fs_buildresources" ) )
{
// for resource gathering write this image to the preload file for this map
fileSystem->AddImagePreload( GetName(), filter, repeat, usage, cubeFiles );
}
}
else
{
if( cubeFiles != CF_2D )
{
int size;
byte* pics[6];
if( !R_LoadCubeImages( GetName(), cubeFiles, pics, &size, &sourceFileTime ) || size == 0 )
{
idLib::Warning( "Couldn't load cube image: %s", GetName() );
return;
}
opts.textureType = TT_CUBIC;
repeat = TR_CLAMP;
opts.width = size;
opts.height = size;
opts.numLevels = 0;
DeriveOpts();
im.LoadCubeFromMemory( size, ( const byte** )pics, opts.numLevels, opts.format, opts.gammaMips );
repeat = TR_CLAMP;
for( int i = 0; i < 6; i++ )
{
if( pics[i] )
{
Mem_Free( pics[i] );
}
}
}
else
{
int width, height;
byte* pic;
// load the full specification, and perform any image program calculations
R_LoadImageProgram( GetName(), &pic, &width, &height, &sourceFileTime, &usage );
if( pic == NULL )
{
idLib::Warning( "Couldn't load image: %s : %s", GetName(), generatedName.c_str() );
// create a default so it doesn't get continuously reloaded
opts.width = 8;
opts.height = 8;
opts.numLevels = 1;
DeriveOpts();
AllocImage();
// clear the data so it's not left uninitialized
idTempArray<byte> clear( opts.width * opts.height * 4 );
memset( clear.Ptr(), 0, clear.Size() );
for( int level = 0; level < opts.numLevels; level++ )
{
SubImageUpload( level, 0, 0, 0, opts.width >> level, opts.height >> level, clear.Ptr() );
}
return;
}
opts.width = width;
opts.height = height;
opts.numLevels = 0;
DeriveOpts();
im.Load2DFromMemory( opts.width, opts.height, pic, opts.numLevels, opts.format, opts.colorFormat, opts.gammaMips );
Mem_Free( pic );
}
binaryFileTime = im.WriteGeneratedFile( sourceFileTime );
}
AllocImage();
for( int i = 0; i < im.NumImages(); i++ )
{
const bimageImage_t& img = im.GetImageHeader( i );
const byte* data = im.GetImageData( i );
SubImageUpload( img.level, 0, 0, img.destZ, img.width, img.height, data );
}
}
/*
==============
Bind
Automatically enables 2D mapping or cube mapping if needed
==============
*/
void idImage::Bind()
{
RENDERLOG_PRINTF( "idImage::Bind( %s )\n", GetName() );
// load the image if necessary (FIXME: not SMP safe!)
if( !IsLoaded() )
{
// load the image on demand here, which isn't our normal game operating mode
ActuallyLoadImage( true );
}
const int texUnit = backEnd.glState.currenttmu;
tmu_t* tmu = &backEnd.glState.tmu[texUnit];
// bind the texture
if( opts.textureType == TT_2D )
{
if( tmu->current2DMap != texnum )
{
tmu->current2DMap = texnum;
// RB begin
if( glConfig.directStateAccess )
{
glBindMultiTextureEXT( GL_TEXTURE0 + texUnit, GL_TEXTURE_2D, texnum );
}
else
{
glActiveTexture( GL_TEXTURE0 + texUnit );
glBindTexture( GL_TEXTURE_2D, texnum );
}
// RB end
}
}
else if( opts.textureType == TT_CUBIC )
{
if( tmu->currentCubeMap != texnum )
{
tmu->currentCubeMap = texnum;
// RB begin
#if !defined(USE_GLES2) && !defined(USE_GLES3)
if( glConfig.directStateAccess )
{
glBindMultiTextureEXT( GL_TEXTURE0 + texUnit, GL_TEXTURE_CUBE_MAP, texnum );
}
else
#endif
{
glActiveTexture( GL_TEXTURE0 + texUnit );
glBindTexture( GL_TEXTURE_CUBE_MAP, texnum );
}
// RB end
}
}
else if( opts.textureType == TT_2D_ARRAY )
{
if( tmu->current2DArray != texnum )
{
tmu->current2DArray = texnum;
// RB begin
#if !defined(USE_GLES2) && !defined(USE_GLES3)
if( glConfig.directStateAccess )
{
glBindMultiTextureEXT( GL_TEXTURE0 + texUnit, GL_TEXTURE_2D_ARRAY, texnum );
}
else
#endif
{
glActiveTexture( GL_TEXTURE0 + texUnit );
glBindTexture( GL_TEXTURE_2D_ARRAY, texnum );
}
// RB end
}
}
}
/*
================
MakePowerOfTwo
================
*/
int MakePowerOfTwo( int num )
{
int pot;
for( pot = 1; pot < num; pot <<= 1 )
{
}
return pot;
}
/*
====================
CopyFramebuffer
====================
*/
void idImage::CopyFramebuffer( int x, int y, int imageWidth, int imageHeight )
{
glBindTexture( ( opts.textureType == TT_CUBIC ) ? GL_TEXTURE_CUBE_MAP : GL_TEXTURE_2D, texnum );
glReadBuffer( GL_BACK );
opts.width = imageWidth;
opts.height = imageHeight;
glCopyTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA8, x, y, imageWidth, imageHeight, 0 );
// these shouldn't be necessary if the image was initialized properly
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
backEnd.pc.c_copyFrameBuffer++;
}
/*
====================
CopyDepthbuffer
====================
*/
void idImage::CopyDepthbuffer( int x, int y, int imageWidth, int imageHeight )
{
glBindTexture( ( opts.textureType == TT_CUBIC ) ? GL_TEXTURE_CUBE_MAP : GL_TEXTURE_2D, texnum );
opts.width = imageWidth;
opts.height = imageHeight;
glCopyTexImage2D( GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, x, y, imageWidth, imageHeight, 0 );
backEnd.pc.c_copyFrameBuffer++;
}
/*
=============
RB_UploadScratchImage
if rows = cols * 6, assume it is a cube map animation
=============
*/
void idImage::UploadScratch( const byte* data, int cols, int rows )
{
// if rows = cols * 6, assume it is a cube map animation
if( rows == cols * 6 )
{
rows /= 6;
const byte* pic[6];
for( int i = 0; i < 6; i++ )
{
pic[i] = data + cols * rows * 4 * i;
}
if( opts.textureType != TT_CUBIC || usage != TD_LOOKUP_TABLE_RGBA )
{
GenerateCubeImage( pic, cols, TF_LINEAR, TD_LOOKUP_TABLE_RGBA );
return;
}
if( opts.width != cols || opts.height != rows )
{
opts.width = cols;
opts.height = rows;
AllocImage();
}
SetSamplerState( TF_LINEAR, TR_CLAMP );
for( int i = 0; i < 6; i++ )
{
SubImageUpload( 0, 0, 0, i, opts.width, opts.height, pic[i] );
}
}
else
{
if( opts.textureType != TT_2D || usage != TD_LOOKUP_TABLE_RGBA )
{
GenerateImage( data, cols, rows, TF_LINEAR, TR_REPEAT, TD_LOOKUP_TABLE_RGBA );
return;
}
if( opts.width != cols || opts.height != rows )
{
opts.width = cols;
opts.height = rows;
AllocImage();
}
SetSamplerState( TF_LINEAR, TR_REPEAT );
SubImageUpload( 0, 0, 0, 0, opts.width, opts.height, data );
}
}
/*
==================
StorageSize
==================
*/
int idImage::StorageSize() const
{
if( !IsLoaded() )
{
return 0;
}
int baseSize = opts.width * opts.height;
if( opts.numLevels > 1 )
{
baseSize *= 4;
baseSize /= 3;
}
baseSize *= BitsForFormat( opts.format );
baseSize /= 8;
return baseSize;
}
/*
==================
Print
==================
*/
void idImage::Print() const
{
if( generatorFunction )
{
common->Printf( "F" );
}
else
{
common->Printf( " " );
}
switch( opts.textureType )
{
case TT_2D:
common->Printf( " " );
break;
case TT_CUBIC:
common->Printf( "C" );
break;
default:
common->Printf( "<BAD TYPE:%i>", opts.textureType );
break;
}
common->Printf( "%4i %4i ", opts.width, opts.height );
switch( opts.format )
{
#define NAME_FORMAT( x ) case FMT_##x: common->Printf( "%-6s ", #x ); break;
NAME_FORMAT( NONE );
NAME_FORMAT( RGBA8 );
NAME_FORMAT( XRGB8 );
NAME_FORMAT( RGB565 );
NAME_FORMAT( L8A8 );
NAME_FORMAT( ALPHA );
NAME_FORMAT( LUM8 );
NAME_FORMAT( INT8 );
NAME_FORMAT( DXT1 );
NAME_FORMAT( DXT5 );
NAME_FORMAT( DEPTH );
NAME_FORMAT( X16 );
NAME_FORMAT( Y16_X16 );
default:
common->Printf( "<%3i>", opts.format );
break;
}
switch( filter )
{
case TF_DEFAULT:
common->Printf( "mip " );
break;
case TF_LINEAR:
common->Printf( "linr " );
break;
case TF_NEAREST:
common->Printf( "nrst " );
break;
default:
common->Printf( "<BAD FILTER:%i>", filter );
break;
}
switch( repeat )
{
case TR_REPEAT:
common->Printf( "rept " );
break;
case TR_CLAMP_TO_ZERO:
common->Printf( "zero " );
break;
case TR_CLAMP_TO_ZERO_ALPHA:
common->Printf( "azro " );
break;
case TR_CLAMP:
common->Printf( "clmp " );
break;
default:
common->Printf( "<BAD REPEAT:%i>", repeat );
break;
}
common->Printf( "%4ik ", StorageSize() / 1024 );
common->Printf( " %s\n", GetName() );
}
/*
===============
idImage::Reload
===============
*/
void idImage::Reload( bool force )
{
// always regenerate functional images
if( generatorFunction )
{
common->DPrintf( "regenerating %s.\n", GetName() );
generatorFunction( this );
return;
}
// check file times
if( !force )
{
ID_TIME_T current;
if( cubeFiles != CF_2D )
{
R_LoadCubeImages( imgName, cubeFiles, NULL, NULL, &current );
}
else
{
// get the current values
R_LoadImageProgram( imgName, NULL, NULL, NULL, &current );
}
if( current <= sourceFileTime )
{
return;
}
}
common->DPrintf( "reloading %s.\n", GetName() );
PurgeImage();
// Load is from the front end, so the back end must be synced
ActuallyLoadImage( false );
}
/*
========================
idImage::SetSamplerState
========================
*/
void idImage::SetSamplerState( textureFilter_t tf, textureRepeat_t tr )
{
if( tf == filter && tr == repeat )
{
return;
}
filter = tf;
repeat = tr;
glBindTexture( ( opts.textureType == TT_CUBIC ) ? GL_TEXTURE_CUBE_MAP : GL_TEXTURE_2D, texnum );
SetTexParameters();
}
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