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Cleanup: removed r_ignoreFastPath and fast pass code.

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This optimization is not important nowdays. Also fast pass was disabled by default in original code.
This change simplifies rendering code since now we have only two shader stage processing functions: generic and sky.
This commit is contained in:
Artem Kharytoniuk 2017-04-03 16:54:14 +03:00
parent 0962288d03
commit a02cb3ee10
4 changed files with 5 additions and 277 deletions
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3
src/engine/renderer/tr_init.c
View File

@ -38,8 +38,6 @@ cvar_t *r_railWidth;
cvar_t *r_railCoreWidth;
cvar_t *r_railSegmentLength;
cvar_t *r_ignoreFastPath;
cvar_t *r_verbose;
cvar_t *r_ignore;
@ -829,7 +827,6 @@ void R_Register( void )
r_uiFullScreen = ri.Cvar_Get( "r_uifullscreen", "0", 0);
r_subdivisions = ri.Cvar_Get ("r_subdivisions", "4", CVAR_ARCHIVE | CVAR_LATCH);
r_smp = ri.Cvar_Get( "r_smp", "0", CVAR_ARCHIVE | CVAR_LATCH);
r_ignoreFastPath = ri.Cvar_Get( "r_ignoreFastPath", "1", CVAR_ARCHIVE | CVAR_LATCH );
//
// temporary latched variables that can only change over a restart

3
src/engine/renderer/tr_local.h
View File

@ -982,7 +982,6 @@ extern cvar_t *r_railSegmentLength;
extern cvar_t *r_ignore; // used for debugging anything
extern cvar_t *r_verbose; // used for verbose debug spew
extern cvar_t *r_ignoreFastPath; // allows us to ignore our Tess fast paths
extern cvar_t *r_znear; // near Z clip plane
@ -1295,8 +1294,6 @@ void RB_CheckOverflow( int verts, int indexes );
void RB_StageIteratorGeneric( void );
void RB_StageIteratorSky( void );
void RB_StageIteratorVertexLitTexture( void );
void RB_StageIteratorLightmappedMultitexture( void );
void RB_AddQuadStamp( vec3_t origin, vec3_t left, vec3_t up, byte *color );
void RB_AddQuadStampExt( vec3_t origin, vec3_t left, vec3_t up, byte *color, float s1, float t1, float s2, float t2 );

184
src/engine/renderer/tr_shade.c
View File

@ -963,190 +963,6 @@ void RB_StageIteratorGeneric( void )
}
}
/*
** RB_StageIteratorVertexLitTexture
*/
void RB_StageIteratorVertexLitTexture( void )
{
shaderCommands_t *input;
shader_t *shader;
input = &tess;
shader = input->shader;
//
// compute colors
//
RB_CalcDiffuseColor( ( unsigned char * ) tess.svars.colors );
//
// log this call
//
if ( r_logFile->integer )
{
// don't just call LogComment, or we will get
// a call to va() every frame!
GLimp_LogComment( va("--- RB_StageIteratorVertexLitTexturedUnfogged( %s ) ---\n", tess.shader->name) );
}
//
// set face culling appropriately
//
GL_Cull( input->shader->cullType );
//
// set arrays and lock
//
qglEnableClientState( GL_COLOR_ARRAY);
qglEnableClientState( GL_TEXTURE_COORD_ARRAY);
qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, tess.svars.colors );
qglTexCoordPointer( 2, GL_FLOAT, 16, tess.texCoords[0][0] );
qglVertexPointer (3, GL_FLOAT, 16, input->xyz);
if ( qglLockArraysEXT )
{
qglLockArraysEXT(0, input->numVertexes);
GLimp_LogComment( "glLockArraysEXT\n" );
}
//
// call special shade routine
//
R_BindAnimatedImage( &tess.xstages[0]->bundle[0] );
GL_State( tess.xstages[0]->stateBits );
R_DrawElements( input->numIndexes, input->indexes );
//
// now do any dynamic lighting needed
//
if ( tess.dlightBits && tess.shader->sort <= SS_OPAQUE ) {
ProjectDlightTexture();
}
//
// now do fog
//
if ( tess.fogNum && tess.shader->fogPass ) {
RB_FogPass();
}
//
// unlock arrays
//
if (qglUnlockArraysEXT)
{
qglUnlockArraysEXT();
GLimp_LogComment( "glUnlockArraysEXT\n" );
}
}
//define REPLACE_MODE
void RB_StageIteratorLightmappedMultitexture( void ) {
shaderCommands_t *input;
input = &tess;
//
// log this call
//
if ( r_logFile->integer ) {
// don't just call LogComment, or we will get
// a call to va() every frame!
GLimp_LogComment( va("--- RB_StageIteratorLightmappedMultitexture( %s ) ---\n", tess.shader->name) );
}
//
// set face culling appropriately
//
GL_Cull( input->shader->cullType );
//
// set color, pointers, and lock
//
GL_State( GLS_DEFAULT );
qglVertexPointer( 3, GL_FLOAT, 16, input->xyz );
#ifdef REPLACE_MODE
qglDisableClientState( GL_COLOR_ARRAY );
qglColor3f( 1, 1, 1 );
qglShadeModel( GL_FLAT );
#else
qglEnableClientState( GL_COLOR_ARRAY );
qglColorPointer( 4, GL_UNSIGNED_BYTE, 0, tess.constantColor255 );
#endif
//
// select base stage
//
GL_SelectTexture( 0 );
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
R_BindAnimatedImage( &tess.xstages[0]->bundle[0] );
qglTexCoordPointer( 2, GL_FLOAT, 16, tess.texCoords[0][0] );
//
// configure second stage
//
GL_SelectTexture( 1 );
qglEnable( GL_TEXTURE_2D );
if ( r_lightmap->integer ) {
GL_TexEnv( GL_REPLACE );
} else {
GL_TexEnv( GL_MODULATE );
}
R_BindAnimatedImage( &tess.xstages[0]->bundle[1] );
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
qglTexCoordPointer( 2, GL_FLOAT, 16, tess.texCoords[0][1] );
//
// lock arrays
//
if ( qglLockArraysEXT ) {
qglLockArraysEXT(0, input->numVertexes);
GLimp_LogComment( "glLockArraysEXT\n" );
}
R_DrawElements( input->numIndexes, input->indexes );
//
// disable texturing on TEXTURE1, then select TEXTURE0
//
qglDisable( GL_TEXTURE_2D );
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
GL_SelectTexture( 0 );
#ifdef REPLACE_MODE
GL_TexEnv( GL_MODULATE );
qglShadeModel( GL_SMOOTH );
#endif
//
// now do any dynamic lighting needed
//
if ( tess.dlightBits && tess.shader->sort <= SS_OPAQUE ) {
ProjectDlightTexture();
}
//
// now do fog
//
if ( tess.fogNum && tess.shader->fogPass ) {
RB_FogPass();
}
//
// unlock arrays
//
if ( qglUnlockArraysEXT ) {
qglUnlockArraysEXT();
GLimp_LogComment( "glUnlockArraysEXT\n" );
}
}
/*
** RB_EndSurface
*/

92
src/engine/renderer/tr_shader.c
View File

@ -1614,88 +1614,6 @@ SHADER OPTIMIZATION AND FOGGING
========================================================================================
*/
/*
===================
ComputeStageIteratorFunc
See if we can use on of the simple fastpath stage functions,
otherwise set to the generic stage function
===================
*/
static void ComputeStageIteratorFunc( void )
{
shader.optimalStageIteratorFunc = RB_StageIteratorGeneric;
//
// see if this should go into the sky path
//
if ( shader.isSky )
{
shader.optimalStageIteratorFunc = RB_StageIteratorSky;
goto done;
}
if ( r_ignoreFastPath->integer )
{
return;
}
//
// see if this can go into the vertex lit fast path
//
if ( shader.numUnfoggedPasses == 1 )
{
if ( stages[0].rgbGen == CGEN_LIGHTING_DIFFUSE )
{
if ( stages[0].alphaGen == AGEN_IDENTITY )
{
if ( stages[0].bundle[0].tcGen == TCGEN_TEXTURE )
{
if ( !shader.polygonOffset )
{
if ( !shader.multitextureEnv )
{
if ( !shader.numDeforms )
{
shader.optimalStageIteratorFunc = RB_StageIteratorVertexLitTexture;
goto done;
}
}
}
}
}
}
}
//
// see if this can go into an optimized LM, multitextured path
//
if ( shader.numUnfoggedPasses == 1 )
{
if ( ( stages[0].rgbGen == CGEN_IDENTITY ) && ( stages[0].alphaGen == AGEN_IDENTITY ) )
{
if ( stages[0].bundle[0].tcGen == TCGEN_TEXTURE &&
stages[0].bundle[1].tcGen == TCGEN_LIGHTMAP )
{
if ( !shader.polygonOffset )
{
if ( !shader.numDeforms )
{
if ( shader.multitextureEnv )
{
shader.optimalStageIteratorFunc = RB_StageIteratorLightmappedMultitexture;
goto done;
}
}
}
}
}
}
done:
return;
}
typedef struct {
int blendA;
int blendB;
@ -2244,7 +2162,11 @@ static shader_t *FinishShader( void ) {
}
// determine which stage iterator function is appropriate
ComputeStageIteratorFunc();
if ( shader.isSky ) {
shader.optimalStageIteratorFunc = RB_StageIteratorSky;
} else {
shader.optimalStageIteratorFunc = RB_StageIteratorGeneric;
}
return GeneratePermanentShader();
}
@ -2782,10 +2704,6 @@ void R_ShaderList_f (void) {
ri.Printf( PRINT_ALL, "gen " );
} else if ( shader->optimalStageIteratorFunc == RB_StageIteratorSky ) {
ri.Printf( PRINT_ALL, "sky " );
} else if ( shader->optimalStageIteratorFunc == RB_StageIteratorLightmappedMultitexture ) {
ri.Printf( PRINT_ALL, "lmmt" );
} else if ( shader->optimalStageIteratorFunc == RB_StageIteratorVertexLitTexture ) {
ri.Printf( PRINT_ALL, "vlt " );
} else {
ri.Printf( PRINT_ALL, " " );
}