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3bf9df6b27
source-engine/togl/linuxwin/cglmprogram.cpp
FluorescentCIAAfricanAmerican 3bf9df6b27 1
2020-04-22 12:56:21 -04:00

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//========= Copyright Valve Corporation, All rights reserved. ============//
// TOGL CODE LICENSE
//
// Copyright 2011-2014 Valve Corporation
// All Rights Reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
// cglmprogram.cpp
//
//===============================================================================
#include "togl/rendermechanism.h"
#include "filesystem.h"
#include "tier1/fmtstr.h"
#include "tier1/KeyValues.h"
#include "tier0/fasttimer.h"
#if GLMDEBUG && defined( _MSC_VER )
#include <direct.h>
#endif
// memdbgon -must- be the last include file in a .cpp file.
#include "tier0/memdbgon.h"
#if GLMDEBUG
#define GLM_FREE_SHADER_TEXT 0
#else
#define GLM_FREE_SHADER_TEXT 1
#endif
//===============================================================================
ConVar gl_shaderpair_cacherows_lg2( "gl_paircache_rows_lg2", "10"); // 10 is minimum
ConVar gl_shaderpair_cacheways_lg2( "gl_paircache_ways_lg2", "5"); // 5 is minimum
ConVar gl_shaderpair_cachelog( "gl_shaderpair_cachelog", "0" );
static CCycleCount gShaderCompileTime;
static int gShaderCompileCount = 0;
static CCycleCount gShaderCompileQueryTime;
static CCycleCount gShaderLinkTime;
static int gShaderLinkCount = 0;
static CCycleCount gShaderLinkQueryTime;
CON_COMMAND( gl_shader_compile_time_dump, "Dump stats shader compile time." )
{
ConMsg( "Shader Compile Time: %u ms (Count: %d) / Query: %u ms \n", (uint32)gShaderCompileTime.GetMilliseconds(), gShaderCompileCount, (uint32)gShaderCompileQueryTime.GetMilliseconds() );
ConMsg( "Shader Link Time : %u ms (Count: %d) / Query: %u ms \n", (uint32)gShaderLinkTime.GetMilliseconds(), gShaderLinkCount, (uint32)gShaderLinkQueryTime.GetMilliseconds() );
}
//===============================================================================
GLenum GLMProgTypeToARBEnum( EGLMProgramType type )
{
GLenum result = 0;
switch(type)
{
case kGLMVertexProgram: result = GL_VERTEX_PROGRAM_ARB; break;
case kGLMFragmentProgram: result = GL_FRAGMENT_PROGRAM_ARB; break;
default: Assert( !"bad program type"); result = 0; break;
}
return result;
}
GLenum GLMProgTypeToGLSLEnum( EGLMProgramType type )
{
GLenum result = 0;
switch(type)
{
case kGLMVertexProgram: result = GL_VERTEX_SHADER_ARB; break;
case kGLMFragmentProgram: result = GL_FRAGMENT_SHADER_ARB; break;
default: Assert( !"bad program type"); result = 0; break;
}
return result;
}
CGLMProgram::CGLMProgram( GLMContext *ctx, EGLMProgramType type )
{
m_ctx = ctx;
m_ctx->CheckCurrent();
m_type = type;
m_nHashTag = rand() ^ ( rand() << 15 );
m_text = NULL; // no text yet
#if GLMDEBUG
m_editable = NULL;
#endif
memset( &m_descs, 0, sizeof( m_descs ) );
m_samplerMask = 0; // dxabstract sets this field later
m_samplerTypes = 0;
m_fragDataMask = 0;
m_numDrawBuffers = 0;
memset( &m_drawBuffers, 0, sizeof( m_drawBuffers ) );
m_maxSamplers = GLM_SAMPLER_COUNT;
m_nNumUsedSamplers = GLM_SAMPLER_COUNT;
m_maxVertexAttrs = kGLMVertexAttributeIndexMax;
// create an ARB vp/fp program object name. No need to bind it yet.
GLMShaderDesc *arbDesc = &m_descs[ kGLMARB ];
Assert(gGL);
gGL->glGenProgramsARB( 1, &arbDesc->m_object.arb );
// create a GLSL shader object.
GLMShaderDesc *glslDesc = &m_descs[ kGLMGLSL ];
GLenum glslStage = GLMProgTypeToGLSLEnum( m_type );
glslDesc->m_object.glsl = gGL->glCreateShaderObjectARB( glslStage );;
m_shaderName[0] = '\0';
m_bTranslatedProgram = false;
m_nCentroidMask = 0;
m_nShadowDepthSamplerMask = 0;
m_labelName[0] = '\0';
m_labelIndex = -1;
m_labelCombo = -1;
// no text has arrived yet. That's done in SetProgramText.
}
CGLMProgram::~CGLMProgram( )
{
m_ctx->CheckCurrent();
// if there is an arb program, delete it
GLMShaderDesc *arbDesc = &m_descs[ kGLMARB ];
if (arbDesc->m_object.arb)
{
gGL->glDeleteProgramsARB( 1, &arbDesc->m_object.arb );
arbDesc->m_object.arb = 0;
}
// if there is a GLSL shader, delete it
GLMShaderDesc *glslDesc = &m_descs[kGLMGLSL];
if (glslDesc->m_object.glsl)
{
gGL->glDeleteShader( (uint)glslDesc->m_object.glsl ); // why do I need a cast here again ?
glslDesc->m_object.glsl = 0;
}
#if GLMDEBUG
if (m_editable)
{
delete m_editable;
m_editable = NULL;
}
#endif
if (m_text)
{
free( m_text );
m_text = NULL;
}
m_ctx = NULL;
}
enum EShaderSection
{
kGLMARBVertex, kGLMARBVertexDisabled,
kGLMARBFragment, kGLMARBFragmentDisabled,
kGLMGLSLVertex, kGLMGLSLVertexDisabled,
kGLMGLSLFragment, kGLMGLSLFragmentDisabled,
};
const char *g_shaderSectionMarkers[] = // match ordering of enum
{
"!!ARBvp", "-!!ARBvp", // enabled and disabled markers. so you can have multiple flavors in a blob and activate the one you want.
"!!ARBfp", "-!!ARBfp",
"//GLSLvp", "-//GLSLvp",
"//GLSLfp", "-//GLSLfp",
NULL
};
void CGLMProgram::SetShaderName( const char *name )
{
V_strncpy( m_shaderName, name, sizeof( m_shaderName ) );
}
void CGLMProgram::SetProgramText( char *text )
{
// free old text if any
// clone new text
// scan newtext to find sections
// walk sections, and mark descs to indicate where text is at
if (m_text)
{
free( m_text );
m_text = NULL;
}
// scrub desc text references
for( int i=0; i<kGLMNumProgramTypes; i++)
{
GLMShaderDesc *desc = &m_descs[i];
desc->m_textPresent = false;
desc->m_textOffset = 0;
desc->m_textLength = 0;
}
m_text = strdup( text );
Assert( m_text != NULL );
#if GLMDEBUG
// create editable text item, if it does not already exist
if (!m_editable)
{
char *suffix = "";
switch(m_type)
{
case kGLMVertexProgram: suffix = ".vsh"; break;
case kGLMFragmentProgram: suffix = ".fsh"; break;
default: GLMDebugger();
}
#ifdef POSIX
CFmtStr debugShaderPath( "%s/debugshaders/", getenv( "HOME" ) );
#else
CFmtStr debugShaderPath( "debugshaders/" );
#endif
_mkdir( debugShaderPath.Access() );
m_editable = new CGLMEditableTextItem( m_text, strlen(m_text), false, debugShaderPath.Access(), suffix );
// pull our string back from the editable (it has probably munged it)
if (m_editable->HasData())
{
ReloadStringFromEditable();
}
}
#endif
// scan the text and find sections
CGLMTextSectioner sections( m_text, strlen( m_text ), g_shaderSectionMarkers );
int sectionCount = sections.Count();
for( int i=0; i < sectionCount; i++ )
{
uint subtextOffset = 0;
uint subtextLength = 0;
int markerIndex = 0;
sections.GetSection( i, &subtextOffset, &subtextLength, &markerIndex );
// act on the section
GLMShaderDesc *desc = NULL;
switch( m_type )
{
case kGLMVertexProgram:
switch( markerIndex )
{
case kGLMARBVertex:
case kGLMGLSLVertex:
desc = &m_descs[ (markerIndex==kGLMARBVertex) ? kGLMARB : kGLMGLSL];
// these steps are generic across both langs
desc->m_textPresent = true;
desc->m_textOffset = subtextOffset;
desc->m_textLength = subtextLength;
desc->m_compiled = false;
desc->m_valid = false;
break;
case kGLMARBVertexDisabled:
case kGLMGLSLVertexDisabled:
// ignore quietly
break;
default: Assert(!"Mismatched section marker seen in SetProgramText (VP)"); break;
}
break;
case kGLMFragmentProgram:
switch( markerIndex )
{
case kGLMARBFragment:
case kGLMGLSLFragment:
desc = &m_descs[ (markerIndex==kGLMARBFragment) ? kGLMARB : kGLMGLSL];
// these steps are generic across both langs
desc->m_textPresent = true;
desc->m_textOffset = subtextOffset;
desc->m_textLength = subtextLength;
desc->m_compiled = false;
desc->m_valid = false;
break;
case kGLMARBFragmentDisabled:
case kGLMGLSLFragmentDisabled:
// ignore quietly
break;
default: Assert(!"Mismatched section marker seen in SetProgramText (VP)"); break;
}
break;
}
}
// find the label string
// example:
// trans#2871 label:vs-file vertexlit_and_unlit_generic_vs20 vs-index 294912 vs-combo 1234
char *lineStr = strstr( m_text, "// trans#" );
if (lineStr)
{
int scratch = -1;
if (this->m_type == kGLMVertexProgram)
{
sscanf( lineStr, "// trans#%d label:vs-file %s vs-index %d vs-combo %d", &scratch, m_labelName, &m_labelIndex, &m_labelCombo );
}
else
{
sscanf( lineStr, "// trans#%d label:ps-file %s ps-index %d ps-combo %d", &scratch, m_labelName, &m_labelIndex, &m_labelCombo );
}
}
}
void CGLMProgram::CompileActiveSources ( void )
{
// compile everything we have text for
for( int i=0; i<kGLMNumProgramTypes; i++)
{
if (m_descs[i].m_textPresent)
{
Compile( (EGLMProgramLang)i );
}
}
}
void CGLMProgram::Compile( EGLMProgramLang lang )
{
bool bTimeShaderCompiles = (CommandLine()->FindParm( "-gl_time_shader_compiles" ) != 0);
// If using "-gl_time_shader_compiles", keeps track of total cycle count spent on shader compiles.
CFastTimer shaderCompileTimer;
if (bTimeShaderCompiles)
{
shaderCompileTimer.Start();
}
bool noisy = false; noisy;
int loglevel = gl_shaderpair_cachelog.GetInt();
switch( lang )
{
case kGLMARB:
{
GLMShaderDesc *arbDesc;
arbDesc = &m_descs[ kGLMARB ];
// make sure no GLSL program is set up
gGL->glUseProgram(0);
// bind our program container to context
GLenum arbTarget = GLMProgTypeToARBEnum( m_type );
glSetEnable( arbTarget, true ); // unclear if I need this to compile or just to draw...
gGL->glBindProgramARB( arbTarget, arbDesc->m_object.arb ); // object created or just re-bound
char *section = m_text + arbDesc->m_textOffset;
char *lastCharOfSection = section + arbDesc->m_textLength; // actually it's one past the last textual character
lastCharOfSection;
#if GLMDEBUG
if(noisy)
{
GLMPRINTF((">-D- CGLMProgram::Compile submitting following text for ARB %s program (name %d) ---------------------",
arbTarget == GL_FRAGMENT_PROGRAM_ARB ? "fragment" : "vertex",
arbDesc->m_object.arb ));
// we don't have a "print this many chars" call yet
// just temporarily null terminate the text we want to print
char saveChar = *lastCharOfSection;
*lastCharOfSection= 0;
GLMPRINTTEXT(( section, eDebugDump ));
*lastCharOfSection= saveChar;
GLMPRINTF(("<-D- CGLMProgram::Compile ARB EOT--" ));
}
#endif
gGL->glProgramStringARB( arbTarget, GL_PROGRAM_FORMAT_ASCII_ARB, arbDesc->m_textLength, section );
arbDesc->m_compiled = true; // compiled but not necessarily valid
CheckValidity( lang );
// leave it bound n enabled, don't care (draw will sort it all out)
}
break;
case kGLMGLSL:
{
GLMShaderDesc *glslDesc;
glslDesc = &m_descs[ kGLMGLSL ];
GLenum glslStage = GLMProgTypeToGLSLEnum( m_type );
glslStage;
// there's no binding to do for GLSL. but make sure no ARB stuff is bound for tidiness.
glSetEnable( GL_VERTEX_PROGRAM_ARB, false );
glSetEnable( GL_FRAGMENT_PROGRAM_ARB, false ); // add check errors on these
gGL->glBindProgramARB( GL_VERTEX_PROGRAM_ARB, 0 );
gGL->glBindProgramARB( GL_FRAGMENT_PROGRAM_ARB, 0 );
// no GLSL program either
gGL->glUseProgram(0);
// pump text into GLSL shader object
char *section = m_text + glslDesc->m_textOffset;
char *lastCharOfSection = section + glslDesc->m_textLength; // actually it's one past the last textual character
lastCharOfSection;
#if GLMDEBUG
if(noisy)
{
GLMPRINTF((">-D- CGLMProgram::Compile submitting following text for GLSL %s program (name %d) ---------------------",
glslStage == GL_FRAGMENT_SHADER_ARB ? "fragment" : "vertex",
glslDesc->m_object.glsl ));
// we don't have a "print this many chars" call yet
// just temporarily null terminate the text we want to print
char saveChar = *lastCharOfSection;
*lastCharOfSection= 0;
GLMPRINTTEXT(( section, eDebugDump ));
*lastCharOfSection= saveChar;
GLMPRINTF(("<-D- CGLMProgram::Compile GLSL EOT--" ));
}
#endif
gGL->glShaderSourceARB( glslDesc->m_object.glsl, 1, (const GLchar **)&section, &glslDesc->m_textLength);
#if GLM_FREE_SHADER_TEXT
// Free the shader program text - not needed anymore (GL has its own copy)
if ( m_text && !m_descs[kGLMARB].m_textPresent )
{
free( m_text );
m_text = NULL;
}
#endif
// compile
gGL->glCompileShaderARB( glslDesc->m_object.glsl );
glslDesc->m_compiled = true; // compiled but not necessarily valid
// Check shader validity at creation time. This will cause the driver to not be able to
// multi-thread/defer shader compiles, but it is useful for getting error messages on the
// shader when it is compiled
bool bValidateShaderEarly = (CommandLine()->FindParm( "-gl_validate_shader_early" ) != 0);
if (bValidateShaderEarly)
{
CheckValidity( lang );
}
if (loglevel>=2)
{
char tempname[128];
//int tempindex = -1;
//int tempcombo = -1;
//GetLabelIndexCombo( tempname, sizeof(tempname), &tempindex, &tempcombo );
//printf("\ncompile: - [ %s/%d/%d ] on GL name %d ", tempname, tempindex, tempcombo, glslDesc->m_object.glsl );
GetComboIndexNameString( tempname, sizeof(tempname) );
printf("\ncompile: %s on GL name %d ", tempname, glslDesc->m_object.glsl );
}
}
break;
}
if (bTimeShaderCompiles)
{
shaderCompileTimer.End();
gShaderCompileTime += shaderCompileTimer.GetDuration();
gShaderCompileCount++;
}
}
#if GLMDEBUG
bool CGLMProgram::PollForChanges( void )
{
bool result = false;
if (m_editable)
{
result = m_editable->PollForChanges();
}
return result;
}
void CGLMProgram::ReloadStringFromEditable( void )
{
uint dataSize=0;
char *data=NULL;
m_editable->GetCurrentText( &data, &dataSize );
char *buf = (char *)malloc( dataSize+1 ); // we will NULL terminate it, since the mirror copy might not be
memcpy( buf, data, dataSize );
buf[dataSize] = 0;
SetProgramText( buf );
free( buf );
}
bool CGLMProgram::SyncWithEditable( void )
{
bool result = false;
if (m_editable->PollForChanges())
{
ReloadStringFromEditable();
CompileActiveSources();
// invalidate shader pair cache entries using this shader..
m_ctx->m_pairCache->PurgePairsWithShader( this );
result = true; // result true means "it changed"
}
return result;
}
#endif
// attributes which are general to both stages
// VP and FP:
//
// 0x88A0 PROGRAM_INSTRUCTIONS_ARB VP FP
// 0x88A1 MAX_PROGRAM_INSTRUCTIONS_ARB VP FP
// 0x88A2 PROGRAM_NATIVE_INSTRUCTIONS_ARB VP FP
// 0x88A3 MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB VP FP
//
// 0x88A4 PROGRAM_TEMPORARIES_ARB VP FP
// 0x88A5 MAX_PROGRAM_TEMPORARIES_ARB VP FP
// 0x88A6 PROGRAM_NATIVE_TEMPORARIES_ARB VP FP
// 0x88A7 MAX_PROGRAM_NATIVE_TEMPORARIES_ARB VP FP
//
// 0x88A8 PROGRAM_PARAMETERS_ARB VP FP
// 0x88A9 MAX_PROGRAM_PARAMETERS_ARB VP FP
// 0x88AA PROGRAM_NATIVE_PARAMETERS_ARB VP FP
// 0x88AB MAX_PROGRAM_NATIVE_PARAMETERS_ARB VP FP
//
// 0x88AC PROGRAM_ATTRIBS_ARB VP FP
// 0x88AD MAX_PROGRAM_ATTRIBS_ARB VP FP
// 0x88AE PROGRAM_NATIVE_ATTRIBS_ARB VP FP
// 0x88AF MAX_PROGRAM_NATIVE_ATTRIBS_ARB VP FP
//
// 0x88B4 MAX_PROGRAM_LOCAL_PARAMETERS_ARB VP FP
// 0x88B5 MAX_PROGRAM_ENV_PARAMETERS_ARB VP FP
// 0x88B6 PROGRAM_UNDER_NATIVE_LIMITS_ARB VP FP
//
// VP only:
//
// 0x88B0 PROGRAM_ADDRESS_REGISTERS_ARB VP
// 0x88B1 MAX_PROGRAM_ADDRESS_REGISTERS_ARB VP
// 0x88B2 PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB VP
// 0x88B3 MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB VP
//
// FP only:
//
// 0x8805 PROGRAM_ALU_INSTRUCTIONS_ARB FP
// 0x880B MAX_PROGRAM_ALU_INSTRUCTIONS_ARB FP
// 0x8808 PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB FP
// 0x880E MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB FP
// 0x8806 PROGRAM_TEX_INSTRUCTIONS_ARB FP
// 0x880C MAX_PROGRAM_TEX_INSTRUCTIONS_ARB FP
// 0x8809 PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB FP
// 0x880F MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB FP
// 0x8807 PROGRAM_TEX_INDIRECTIONS_ARB FP
// 0x880D MAX_PROGRAM_TEX_INDIRECTIONS_ARB FP
// 0x880A PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB FP
// 0x8810 MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB FP
struct GLMShaderLimitDesc
{
GLenum m_valueEnum;
GLenum m_limitEnum;
const char *m_debugName;
char m_flags;
// m_flags - 0x01 for VP, 0x02 for FP, or set both if applicable to both
};
// macro to help make the table of what to check
#ifndef LMD
#define LMD( val, flags ) { GL_PROGRAM_##val##_ARB, GL_MAX_PROGRAM_##val##_ARB, #val, flags }
#else
#error you need to use a different name for this macro.
#endif
GLMShaderLimitDesc g_glmShaderLimitDescs[] =
{
// VP and FP..
LMD( INSTRUCTIONS, 3 ),
LMD( NATIVE_INSTRUCTIONS, 3 ),
LMD( NATIVE_TEMPORARIES, 3 ),
LMD( PARAMETERS, 3 ),
LMD( NATIVE_PARAMETERS, 3 ),
LMD( ATTRIBS, 3 ),
LMD( NATIVE_ATTRIBS, 3 ),
// VP only..
LMD( ADDRESS_REGISTERS, 1 ),
LMD( NATIVE_ADDRESS_REGISTERS, 1 ),
// FP only..
LMD( ALU_INSTRUCTIONS, 2 ),
LMD( NATIVE_ALU_INSTRUCTIONS, 2 ),
LMD( TEX_INSTRUCTIONS, 2 ),
LMD( NATIVE_TEX_INSTRUCTIONS, 2 ),
LMD( TEX_INDIRECTIONS, 2 ),
LMD( NATIVE_TEX_INDIRECTIONS, 2 ),
{ 0, 0, NULL, 0 }
};
#undef LMD
bool CGLMProgram::CheckValidity( EGLMProgramLang lang )
{
static char *targnames[] = { "vertex", "fragment" };
bool bTimeShaderCompiles = (CommandLine()->FindParm( "-gl_time_shader_compiles" ) != 0);
// If using "-gl_time_shader_compiles", keeps track of total cycle count spent on shader compiles.
CFastTimer shaderCompileTimer;
if (bTimeShaderCompiles)
{
shaderCompileTimer.Start();
}
bool bValid = false;
switch(lang)
{
case kGLMARB:
{
GLMShaderDesc *arbDesc;
arbDesc = &m_descs[ kGLMARB ];
GLenum arbTarget = GLMProgTypeToARBEnum( m_type );
Assert( arbDesc->m_compiled );
arbDesc->m_valid = true; // assume success til we see otherwise
// assume program is bound. is there anything wrong with it ?
GLint isNative=0;
gGL->glGetProgramivARB( arbTarget, GL_PROGRAM_UNDER_NATIVE_LIMITS_ARB, &isNative );
// If the program is over the hardware's limits, print out some information
if (isNative!=1)
{
arbDesc->m_valid = false;
// check everything we can check
char checkmask = (1<<m_type); // 1 for VP, 2 for FP
for( GLMShaderLimitDesc *desc = g_glmShaderLimitDescs; desc->m_valueEnum !=0; desc++ )
{
if ( desc->m_flags & checkmask )
{
// test it
GLint value = 0;
GLint limit = 0;
gGL->glGetProgramivARB(arbTarget, desc->m_valueEnum, &value);
gGL->glGetProgramivARB(arbTarget, desc->m_limitEnum, &limit);
if (value > limit)
{
GLMPRINTF(("-D- Invalid %s program: program has %d %s; limit is %d", targnames[ m_type ], value, desc->m_debugName, limit ));
}
}
}
}
// syntax error check
GLint errorLine;
gGL->glGetIntegerv( GL_PROGRAM_ERROR_POSITION_ARB, &errorLine );
if ( errorLine!=-1 )
{
const GLubyte* errorString = gGL->glGetString(GL_PROGRAM_ERROR_STRING_ARB); errorString;
GLMPRINTF(( "-D- Syntax error in ARB %s program: %s",targnames[ m_type ], errorString ));
arbDesc->m_valid = false;
}
if (!arbDesc->m_valid)
{
char *temp = strdup(m_text);
temp[ arbDesc->m_textOffset + arbDesc->m_textLength ] = 0;
GLMPRINTF(("-D- ----- ARB compile failed; bad source follows -----" ));
GLMPRINTTEXT(( temp + arbDesc->m_textOffset, eDebugDump, GLMPRINTTEXT_NUMBEREDLINES ));
GLMPRINTF(("-D- -----end-----" ));
free( temp );
}
bValid = arbDesc->m_valid;
}
break;
case kGLMGLSL:
{
GLMShaderDesc *glslDesc;
GLcharARB *logString = NULL;
glslDesc = &m_descs[ kGLMGLSL ];
GLenum glslStage = GLMProgTypeToGLSLEnum( m_type ); glslStage;
Assert( glslDesc->m_compiled );
glslDesc->m_valid = true; // assume success til we see otherwise
// GLSL error check
int compiled = 0, length = 0, laux = 0;
gGL->glGetObjectParameterivARB( (GLhandleARB)glslDesc->m_object.glsl, GL_OBJECT_COMPILE_STATUS_ARB, &compiled);
gGL->glGetObjectParameterivARB( (GLhandleARB)glslDesc->m_object.glsl, GL_OBJECT_INFO_LOG_LENGTH_ARB, &length);
if ( length > 0 )
{
logString = (GLcharARB *)malloc(length * sizeof(GLcharARB));
gGL->glGetInfoLogARB((GLhandleARB)glslDesc->m_object.glsl, length, &laux, logString);
}
// we may not be able to check "native limits" stuff until link time. meh
if (!compiled)
{
glslDesc->m_valid = false;
}
if (!glslDesc->m_valid)
{
GLMPRINTF(("-D- ----- GLSL compile failed: \n %s \n",logString ));
#if !GLM_FREE_SHADER_TEXT
char *temp = strdup(m_text);
temp[ glslDesc->m_textOffset + glslDesc->m_textLength ] = 0;
GLMPRINTTEXT(( temp + glslDesc->m_textOffset, eDebugDump, GLMPRINTTEXT_NUMBEREDLINES ));
free( temp );
#endif
GLMPRINTF(("-D- -----end-----" ));
}
if ( logString )
free( logString );
bValid = glslDesc->m_valid;
}
break;
}
if ( !bValid )
{
GLMDebugPrintf( "Compile of \"%s\" Failed:\n%s\n", m_shaderName, m_text ? m_text : "" );
}
AssertOnce( bValid );
if (bTimeShaderCompiles)
{
shaderCompileTimer.End();
gShaderCompileQueryTime += shaderCompileTimer.GetDuration();
}
return bValid;
}
void CGLMProgram::LogSlow( EGLMProgramLang lang )
{
// find the desc, see if it's marked
GLMShaderDesc *desc = &m_descs[ lang ];
if (!desc->m_slowMark)
{
#if !GLM_FREE_SHADER_TEXT
// log it
printf( "\n-------------- Slow %s ( CGLMProgram @ %p, lang %s, name %d ) : \n%s \n",
m_type==kGLMVertexProgram ? "VS" : "FS",
this,
lang==kGLMGLSL ? "GLSL" : "ARB",
(int)(lang==kGLMGLSL ? (int)desc->m_object.glsl : (int)desc->m_object.arb),
m_text
);
#endif
}
else // complain on a decreasing basis (powers of two)
{
if ( (desc->m_slowMark & (desc->m_slowMark-1)) == 0 )
{
// short blurb
printf( "\n Slow %s ( CGLMProgram @ %p, lang %s, name %d ) (%d times)",
m_type==kGLMVertexProgram ? "VS" : "FS",
this,
lang==kGLMGLSL ? "GLSL" : "ARB",
(int)(lang==kGLMGLSL ? (int)desc->m_object.glsl : (int)desc->m_object.arb),
desc->m_slowMark+1
);
}
}
// mark it
desc->m_slowMark++;
}
void CGLMProgram::GetLabelIndexCombo ( char *labelOut, int labelOutMaxChars, int *indexOut, int *comboOut )
{
// find the label string
// example:
// trans#2871 label:vs-file vertexlit_and_unlit_generic_vs20 vs-index 294912 vs-combo 1234
// Done in SetProgramText
*labelOut = 0;
*indexOut = -1;
if ((strlen( m_labelName ) != 0))
{
Q_strncpy( labelOut, m_labelName, labelOutMaxChars );
*indexOut = m_labelIndex;
*comboOut = m_labelCombo;
}
}
void CGLMProgram::GetComboIndexNameString ( char *stringOut, int stringOutMaxChars ) // mmmmmmmm-nnnnnnnn-filename
{
// find the label string
// example:
// trans#2871 label:vs-file vertexlit_and_unlit_generic_vs20 vs-index 294912 vs-combo 1234
// Done in SetProgramText
*stringOut = 0;
int len = strlen( m_labelName );
if ( (len+20) < stringOutMaxChars )
{
// output formatted version
sprintf( stringOut, "%08X-%08X-%s", m_labelCombo, m_labelIndex, m_labelName );
}
}
//===============================================================================
CGLMShaderPair::CGLMShaderPair( GLMContext *ctx )
{
m_ctx = ctx;
m_vertexProg = m_fragmentProg = NULL;
m_program = gGL->glCreateProgramObjectARB();
m_locVertexParams = -1;
m_locVertexBoneParams = -1;
m_locVertexScreenParams = -1;
m_nScreenWidthHeight = 0xFFFFFFFF;
m_locVertexInteger0 = -1; // "i0"
memset( m_locVertexBool, 0xFF, sizeof( m_locVertexBool ) );
memset( m_locFragmentBool, 0xFF, sizeof( m_locFragmentBool ) );
m_bHasBoolOrIntUniforms = false;
m_locFragmentParams = -1;
m_locFragmentFakeSRGBEnable = -1;
m_fakeSRGBEnableValue = -1.0f;
memset( m_locSamplers, 0xFF, sizeof( m_locSamplers ) );
m_valid = false;
m_bCheckLinkStatus = false;
m_revision = 0; // bumps to 1 once linked
}
CGLMShaderPair::~CGLMShaderPair( )
{
if (m_program)
{
gGL->glDeleteObjectARB( (GLhandleARB)m_program );
m_program = 0;
}
}
bool CGLMShaderPair::ValidateProgramPair()
{
if ( m_vertexProg && m_vertexProg->m_descs[kGLMGLSL].m_textPresent && !m_vertexProg->m_descs[kGLMGLSL].m_valid )
{
m_vertexProg->CheckValidity( kGLMGLSL );
}
if (m_fragmentProg && m_fragmentProg->m_descs[kGLMGLSL].m_textPresent && !m_fragmentProg->m_descs[kGLMGLSL].m_valid)
{
m_fragmentProg->CheckValidity( kGLMGLSL );
}
if ( !m_valid && m_bCheckLinkStatus )
{
bool bTimeShaderCompiles = (CommandLine()->FindParm( "-gl_time_shader_compiles" ) != 0);
// If using "-gl_time_shader_compiles", keeps track of total cycle count spent on shader compiles.
CFastTimer shaderCompileTimer;
if (bTimeShaderCompiles)
{
shaderCompileTimer.Start();
}
// check for success
GLint result = 0;
gGL->glGetObjectParameterivARB( m_program, GL_OBJECT_LINK_STATUS_ARB, &result ); // want GL_TRUE
m_bCheckLinkStatus = false;
if (result == GL_TRUE)
{
// success
m_valid = true;
m_revision++;
}
else
{
GLint length = 0;
GLint laux = 0;
// do some digging
gGL->glGetObjectParameterivARB( m_program, GL_OBJECT_INFO_LOG_LENGTH_ARB, &length );
GLcharARB *logString = (GLcharARB *)malloc( length * sizeof(GLcharARB) );
gGL->glGetInfoLogARB( m_program, length, &laux, logString );
GLMPRINTF( ("-D- ----- GLSL link failed: \n %s ", logString) );
#if !GLM_FREE_SHADER_TEXT
char *vtemp = strdup( m_vertexProg->m_text );
vtemp[m_vertexProg->m_descs[kGLMGLSL].m_textOffset + m_vertexProg->m_descs[kGLMGLSL].m_textLength] = 0;
char *ftemp = strdup( m_fragmentProg->m_text );
ftemp[m_fragmentProg->m_descs[kGLMGLSL].m_textOffset + m_fragmentProg->m_descs[kGLMGLSL].m_textLength] = 0;
GLMPRINTF( ("-D- ----- GLSL vertex program selected: %08x (handle %08x)", m_vertexProg, m_vertexProg->m_descs[kGLMGLSL].m_object.glsl) );
GLMPRINTTEXT( (vtemp + m_vertexProg->m_descs[kGLMGLSL].m_textOffset, eDebugDump, GLMPRINTTEXT_NUMBEREDLINES) );
GLMPRINTF( ("-D- ----- GLSL fragment program selected: %08x (handle %08x)", m_fragmentProg, m_fragmentProg->m_descs[kGLMGLSL].m_object.glsl) );
GLMPRINTTEXT( (ftemp + m_fragmentProg->m_descs[kGLMGLSL].m_textOffset, eDebugDump, GLMPRINTTEXT_NUMBEREDLINES) );
free( ftemp );
free( vtemp );
#endif
free( logString );
GLMPRINTF( ("-D- -----end-----") );
}
if (m_valid)
{
gGL->glUseProgram( m_program );
m_ctx->NewLinkedProgram();
m_locVertexParams = gGL->glGetUniformLocationARB( m_program, "vc" );
m_locVertexBoneParams = gGL->glGetUniformLocationARB( m_program, "vcbones" );
m_locVertexScreenParams = gGL->glGetUniformLocationARB( m_program, "vcscreen" );
m_nScreenWidthHeight = 0xFFFFFFFF;
m_locVertexInteger0 = gGL->glGetUniformLocationARB( m_program, "i0" );
m_bHasBoolOrIntUniforms = false;
if (m_locVertexInteger0 >= 0)
m_bHasBoolOrIntUniforms = true;
for (uint i = 0; i < cMaxVertexShaderBoolUniforms; i++)
{
char buf[256];
V_snprintf( buf, sizeof(buf), "b%d", i );
m_locVertexBool[i] = gGL->glGetUniformLocationARB( m_program, buf );
if (m_locVertexBool[i] != -1)
m_bHasBoolOrIntUniforms = true;
}
for (uint i = 0; i < cMaxFragmentShaderBoolUniforms; i++)
{
char buf[256];
V_snprintf( buf, sizeof(buf), "fb%d", i );
m_locFragmentBool[i] = gGL->glGetUniformLocationARB( m_program, buf );
if (m_locFragmentBool[i] != -1)
m_bHasBoolOrIntUniforms = true;
}
m_locFragmentParams = gGL->glGetUniformLocationARB( m_program, "pc" );
for (uint i = 0; i < kGLMNumProgramTypes; i++)
{
m_NumUniformBufferParams[i] = 0;
if (i == kGLMVertexProgram)
{
if (m_locVertexParams < 0)
continue;
}
else if (m_locFragmentParams < 0)
continue;
const uint nNum = (i == kGLMVertexProgram) ? m_vertexProg->m_descs[kGLMGLSL].m_highWater : m_fragmentProg->m_descs[kGLMGLSL].m_highWater;
uint j;
for (j = 0; j < nNum; j++)
{
char buf[256];
V_snprintf( buf, sizeof(buf), "%cc[%i]", "vp"[i], j );
// Grab the handle of each array element, so we can more efficiently update array elements in the middle.
int l = m_UniformBufferParams[i][j] = gGL->glGetUniformLocationARB( m_program, buf );
if (l < 0)
break;
}
m_NumUniformBufferParams[i] = j;
}
m_locFragmentFakeSRGBEnable = gGL->glGetUniformLocationARB( m_program, "flSRGBWrite" );
m_fakeSRGBEnableValue = -1.0f;
for (int sampler = 0; sampler < 16; sampler++)
{
char tmp[16];
sprintf( tmp, "sampler%d", sampler ); // sampler0 .. sampler1.. etc
GLint nLoc = gGL->glGetUniformLocationARB( m_program, tmp );
m_locSamplers[sampler] = nLoc;
if (nLoc >= 0)
{
gGL->glUniform1iARB( nLoc, sampler );
}
}
}
else
{
m_locVertexParams = -1;
m_locVertexBoneParams = -1;
m_locVertexScreenParams = -1;
m_nScreenWidthHeight = 0xFFFFFFFF;
m_locVertexInteger0 = -1;
memset( m_locVertexBool, 0xFF, sizeof(m_locVertexBool) );
memset( m_locFragmentBool, 0xFF, sizeof(m_locFragmentBool) );
m_bHasBoolOrIntUniforms = false;
m_locFragmentParams = -1;
m_locFragmentFakeSRGBEnable = -1;
m_fakeSRGBEnableValue = -999;
memset( m_locSamplers, 0xFF, sizeof(m_locSamplers) );
m_revision = 0;
}
if (bTimeShaderCompiles)
{
shaderCompileTimer.End();
gShaderLinkQueryTime += shaderCompileTimer.GetDuration();
}
}
return m_valid;
}
// glUseProgram() will be called as a side effect!
bool CGLMShaderPair::SetProgramPair( CGLMProgram *vp, CGLMProgram *fp )
{
bool bTimeShaderCompiles = (CommandLine()->FindParm( "-gl_time_shader_compiles" ) != 0);
// If using "-gl_time_shader_compiles", keeps track of total cycle count spent on shader compiles.
CFastTimer shaderCompileTimer;
if (bTimeShaderCompiles)
{
shaderCompileTimer.Start();
}
m_valid = false; // assume failure
// No need to check that vp and fp are valid at this point (ie shader compile succeed)
// It is permissible to attach a shader object to a program before source code has been loaded
// into the shader object or before the shader object has been compiled. The program won't
// link if one or more of the shader objects has not been successfully compiled.
// (Defer querying the compile and link status to take advantage of GLSL shaders
// building in parallels)
bool vpgood = (vp != NULL);
bool fpgood = (fp != NULL);
if ( !fpgood )
{
// fragment side allowed to be "null".
fp = m_ctx->m_pNullFragmentProgram;
}
if ( vpgood && fpgood )
{
if ( vp->m_nCentroidMask != fp->m_nCentroidMask )
{
Warning( "CGLMShaderPair::SetProgramPair: Centroid masks differ at link time of vertex shader %s and pixel shader %s!\n",
vp->m_shaderName, fp->m_shaderName );
}
// attempt link. but first, detach any previously attached programs
if (m_vertexProg)
{
gGL->glDetachObjectARB(m_program, m_vertexProg->m_descs[kGLMGLSL].m_object.glsl);
m_vertexProg = NULL;
}
if (m_fragmentProg)
{
gGL->glDetachObjectARB(m_program, m_fragmentProg->m_descs[kGLMGLSL].m_object.glsl);
m_fragmentProg = NULL;
}
// now attach
gGL->glAttachObjectARB( m_program, vp->m_descs[kGLMGLSL].m_object.glsl );
m_vertexProg = vp;
gGL->glAttachObjectARB( m_program, fp->m_descs[kGLMGLSL].m_object.glsl );
m_fragmentProg = fp;
// force the locations for input attributes v0-vN to be at locations 0-N
// use the vertex attrib map to know which slots are live or not... oy! we don't have that map yet... but it's OK.
// fallback - just force v0-v15 to land in locations 0-15 as a standard.
for( int i = 0; i < 16; i++ )
{
char tmp[16];
sprintf(tmp, "v%d", i); // v0 v1 v2 ... et al
gGL->glBindAttribLocationARB( m_program, i, tmp );
}
#if !GLM_FREE_SHADER_TEXT
if (CommandLine()->CheckParm("-dumpallshaders"))
{
// Dump all shaders, for debugging.
FILE* pFile = fopen("shaderdump.txt", "a+");
if (pFile)
{
fprintf(pFile, "--------------VP:%s\n%s\n", vp->m_shaderName, vp->m_text);
fprintf(pFile, "--------------FP:%s\n%s\n", fp->m_shaderName, fp->m_text);
fclose(pFile);
}
}
#endif
// now link
gGL->glLinkProgramARB( m_program );
m_bCheckLinkStatus = true;
}
else
{
// fail
Assert(!"Can't link these programs");
}
// Check shader validity at creation time. This will cause the driver to not be able to
// multi-thread/defer shader compiles, but it is useful for getting error messages on the
// shader when it is compiled
bool bValidateShaderEarly = (CommandLine()->FindParm( "-gl_validate_shader_early" ) != 0);
if (bValidateShaderEarly)
{
ValidateProgramPair();
}
if (bTimeShaderCompiles)
{
shaderCompileTimer.End();
gShaderLinkTime += shaderCompileTimer.GetDuration();
gShaderLinkCount++;
}
return m_valid;
}
bool CGLMShaderPair::RefreshProgramPair ( void )
{
// re-link and re-query the uniforms.
// since SetProgramPair knows how to detach previously attached shader objects, just pass the same ones in again.
CGLMProgram *vp = m_vertexProg;
CGLMProgram *fp = m_fragmentProg;
bool vpgood = (vp!=NULL) && (vp->m_descs[ kGLMGLSL ].m_valid);
bool fpgood = (fp!=NULL) && (fp->m_descs[ kGLMGLSL ].m_valid);
if (vpgood && fpgood)
{
SetProgramPair( vp, fp );
}
else
{
DebuggerBreak();
return false;
}
return false;
}
//===============================================================================
CGLMShaderPairCache::CGLMShaderPairCache( GLMContext *ctx )
{
m_ctx = ctx;
m_mark = 1;
m_rowsLg2 = gl_shaderpair_cacherows_lg2.GetInt();
if (m_rowsLg2 < 10)
m_rowsLg2 = 10;
m_rows = 1<<m_rowsLg2;
m_rowsMask = m_rows - 1;
m_waysLg2 = gl_shaderpair_cacheways_lg2.GetInt();
if (m_waysLg2 < 5)
m_waysLg2 = 5;
m_ways = 1<<m_waysLg2;
m_entryCount = m_rows * m_ways;
uint entryTableSize = m_rows * m_ways * sizeof(CGLMPairCacheEntry);
m_entries = (CGLMPairCacheEntry*)malloc( entryTableSize ); // array[ m_rows ][ m_ways ]
memset( m_entries, 0, entryTableSize );
uint evictTableSize = m_rows * sizeof(uint);
m_evictions = (uint*)malloc( evictTableSize );
memset (m_evictions, 0, evictTableSize);
#if GL_SHADER_PAIR_CACHE_STATS
// hit counter table is same size
m_hits = (uint*)malloc( evictTableSize );
memset (m_hits, 0, evictTableSize);
#endif
}
CGLMShaderPairCache::~CGLMShaderPairCache( )
{
if (gl_shaderpair_cachelog.GetInt())
{
DumpStats();
}
// free all the built pairs
// free the entry table
bool purgeResult = this->Purge();
(void)purgeResult;
Assert( !purgeResult );
if (m_entries)
{
free( m_entries );
m_entries = NULL;
}
if (m_evictions)
{
free( m_evictions );
m_evictions = NULL;
}
#if GL_SHADER_PAIR_CACHE_STATS
if (m_hits)
{
free( m_hits );
m_hits = NULL;
}
#endif
}
// Set this convar internally to build or add to the shader pair cache file (link hints)
// We really only expect this to work on POSIX
static ConVar glm_cacheprograms( "glm_cacheprograms", "0", FCVAR_DEVELOPMENTONLY );
#define PROGRAM_CACHE_FILE "program_cache.cfg"
static void WriteToProgramCache( CGLMShaderPair *pair )
{
KeyValues *pProgramCache = new KeyValues( "programcache" );
pProgramCache->LoadFromFile( g_pFullFileSystem, PROGRAM_CACHE_FILE, "MOD" );
if ( !pProgramCache )
{
Warning( "Could not write to program cache file!\n" );
return;
}
// extract values of interest which represent a pair of shaders
char vprogramName[128];
int vprogramStaticIndex = -1;
int vprogramDynamicIndex = -1;
pair->m_vertexProg->GetLabelIndexCombo( vprogramName, sizeof(vprogramName), &vprogramStaticIndex, &vprogramDynamicIndex );
char pprogramName[128];
int pprogramStaticIndex = -1;
int pprogramDynamicIndex = -1;
pair->m_fragmentProg->GetLabelIndexCombo( pprogramName, sizeof(pprogramName), &pprogramStaticIndex, &pprogramDynamicIndex );
// make up a key - this thing is really a list of tuples, so need not be keyed by anything particular
KeyValues *pProgramKey = pProgramCache->CreateNewKey();
Assert( pProgramKey );
pProgramKey->SetString ( "vs", vprogramName );
pProgramKey->SetString ( "ps", pprogramName );
pProgramKey->SetInt ( "vs_static", vprogramStaticIndex );
pProgramKey->SetInt ( "ps_static", pprogramStaticIndex );
pProgramKey->SetInt ( "vs_dynamic", vprogramDynamicIndex );
pProgramKey->SetInt ( "ps_dynamic", pprogramDynamicIndex );
pProgramCache->SaveToFile( g_pFullFileSystem, PROGRAM_CACHE_FILE, "MOD" );
pProgramCache->deleteThis();
}
// Calls glUseProgram() as a side effect
CGLMShaderPair *CGLMShaderPairCache::SelectShaderPairInternal( CGLMProgram *vp, CGLMProgram *fp, uint extraKeyBits, int rowIndex )
{
CGLMShaderPair *result = NULL;
#if GLMDEBUG
int loglevel = gl_shaderpair_cachelog.GetInt();
#else
const int loglevel = 0;
#endif
char vtempname[128];
int vtempindex = -1; vtempindex;
int vtempcombo = -1; vtempcombo;
char ptempname[128];
int ptempindex = -1; ptempindex;
int ptempcombo = -1; ptempcombo;
CGLMPairCacheEntry *row = HashRowPtr( rowIndex );
// Re-probe to find the oldest and first unoccupied entry (this func should be very rarely called if the cache is properly configured so re-scanning shouldn't matter).
int hitway, emptyway, oldestway;
HashRowProbe( row, vp, fp, extraKeyBits, hitway, emptyway, oldestway );
Assert( hitway == -1 );
// we missed. if there is no empty way, then somebody's getting evicted.
int destway = -1;
if (emptyway>=0)
{
destway = emptyway;
if (loglevel >= 2) // misses logged at level 3 and higher
{
printf("\nSSP: miss - row %05d - ", rowIndex );
}
}
else
{
// evict the oldest way
Assert( oldestway >= 0); // better not come back negative
CGLMPairCacheEntry *evict = row + oldestway;
Assert( evict->m_pair != NULL );
Assert( evict->m_pair != m_ctx->m_pBoundPair ); // just check
///////////////////////FIXME may need to do a shoot-down if the pair being evicted is currently active in the context
m_evictions[ rowIndex ]++;
// log eviction if desired
if (loglevel >= 2) // misses logged at level 3 and higher
{
//evict->m_vertexProg->GetLabelIndexCombo( vtempname, sizeof(vtempname), &vtempindex, &vtempcombo );
//evict->m_fragmentProg->GetLabelIndexCombo( ptempname, sizeof(ptempname), &ptempindex, &ptempcombo );
//printf("\nSSP: miss - row %05d - [ %s/%d/%d %s/%d/%d ]'s %d'th eviction - ", rowIndex, vtempname, vtempindex, vtempcombo, ptempname, ptempindex, ptempcombo, m_evictions[ rowIndex ] );
evict->m_vertexProg->GetComboIndexNameString( vtempname, sizeof(vtempname) );
evict->m_fragmentProg->GetComboIndexNameString( ptempname, sizeof(ptempname) );
printf("\nSSP: miss - row %05d - [ %s + %s ]'s %d'th eviction - ", rowIndex, vtempname, ptempname, m_evictions[ rowIndex ] );
}
delete evict->m_pair; evict->m_pair = NULL;
memset( evict, 0, sizeof(*evict) );
destway = oldestway;
}
// make the new entry
CGLMPairCacheEntry *newentry = row + destway;
newentry->m_lastMark = m_mark;
newentry->m_vertexProg = vp;
newentry->m_fragmentProg = fp;
newentry->m_extraKeyBits = extraKeyBits;
newentry->m_pair = new CGLMShaderPair( m_ctx );
Assert( newentry->m_pair );
newentry->m_pair->SetProgramPair( vp, fp );
if (loglevel >= 2) // say a little bit more
{
//newentry->m_vertexProg->GetLabelIndexCombo( vtempname, sizeof(vtempname), &vtempindex, &vtempcombo );
//newentry->m_fragmentProg->GetLabelIndexCombo( ptempname, sizeof(ptempname), &ptempindex, &ptempcombo );
//printf("new [ %s/%d/%d %s/%d/%d ]", vtempname, vtempindex, vtempcombo, ptempname, ptempindex, ptempcombo );
newentry->m_vertexProg->GetComboIndexNameString( vtempname, sizeof(vtempname) );
newentry->m_fragmentProg->GetComboIndexNameString( ptempname, sizeof(ptempname) );
printf("new [ %s + %s ]", vtempname, ptempname );
}
m_mark = m_mark+1;
if (!m_mark) // somewhat unlikely this will ever be reached.. but we need to avoid zero as a mark value
{
m_mark = 1;
}
result = newentry->m_pair;
if (glm_cacheprograms.GetInt())
{
WriteToProgramCache( newentry->m_pair );
}
return result;
}
void CGLMShaderPairCache::QueryShaderPair( int index, GLMShaderPairInfo *infoOut )
{
if ( (index<0) || ( static_cast<uint>(index) >= (m_rows*m_ways) ) )
{
// no such location
memset( infoOut, 0, sizeof(*infoOut) );
infoOut->m_status = -1;
}
else
{
// locate the entry, and see if an active pair is present.
// if so, extract info and return with m_status=1.
// if not, exit with m_status = 0.
CGLMPairCacheEntry *entry = &m_entries[index];
if (entry->m_pair)
{
// live
// extract values of interest for caller
entry->m_pair->m_vertexProg->GetLabelIndexCombo ( infoOut->m_vsName, sizeof(infoOut->m_vsName), &infoOut->m_vsStaticIndex, &infoOut->m_vsDynamicIndex );
entry->m_pair->m_fragmentProg->GetLabelIndexCombo ( infoOut->m_psName, sizeof(infoOut->m_psName), &infoOut->m_psStaticIndex, &infoOut->m_psDynamicIndex );
infoOut->m_status = 1;
}
else
{
// not
memset( infoOut, 0, sizeof(*infoOut) );
infoOut->m_status = 0;
}
}
}
bool CGLMShaderPairCache::PurgePairsWithShader( CGLMProgram *prog )
{
bool result = false;
// walk all rows*ways
int limit = m_rows * m_ways;
for( int i=0; i < limit; i++)
{
CGLMPairCacheEntry *entry = &m_entries[i];
if (entry->m_pair)
{
//scrub it, if not currently bound, and if the supplied shader matches either stage
if ( (entry->m_vertexProg==prog) || (entry->m_fragmentProg==prog) )
{
// found it, but does it conflict with bound pair ?
if (entry->m_pair == m_ctx->m_pBoundPair)
{
m_ctx->m_pBoundPair = NULL;
m_ctx->m_bDirtyPrograms = true;
}
delete entry->m_pair;
memset( entry, 0, sizeof(*entry) );
}
}
}
return result;
}
bool CGLMShaderPairCache::Purge( void )
{
bool result = false;
// walk all rows*ways
int limit = m_rows * m_ways;
for( int i=0; i < limit; i++)
{
CGLMPairCacheEntry *entry = &m_entries[i];
if (entry->m_pair)
{
//scrub it, unless the pair is the currently bound pair in our parent glm context
if (entry->m_pair != m_ctx->m_pBoundPair)
{
delete entry->m_pair;
memset( entry, 0, sizeof(*entry) );
}
else
{
result = true;
}
}
}
return result;
}
void CGLMShaderPairCache::DumpStats ( void )
{
#if GL_SHADER_PAIR_CACHE_STATS
printf("\n------------------\npair cache stats");
int total = 0;
for( uint row=0; row < m_rows; row++ )
{
if ( (m_evictions[row] != 0) || (m_hits[row] != 0) )
{
printf("\n row %d : %d evictions, %d hits",row,m_evictions[row], m_hits[row]);
total += m_evictions[row];
}
}
printf("\n\npair cache evictions: %d\n-----------------------\n",total );
#endif
}
//===============================
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