/*
================
R_AddInGameGuis
================
*/
void R_AddInGameGuis( const drawSurf_t* const drawSurfs[], const int numDrawSurfs )
{
SCOPED_PROFILE_EVENT( "R_AddInGameGuis" );
// check for gui surfaces
for( int i = 0; i < numDrawSurfs; i++ )
{
const drawSurf_t* drawSurf = drawSurfs[i];
idUserInterface* gui = drawSurf->material->GlobalGui();
int guiNum = drawSurf->material->GetEntityGui() - 1;
if( guiNum >= 0 && guiNum < MAX_RENDERENTITY_GUI )
{
if( drawSurf->space->entityDef != NULL )
{
gui = drawSurf->space->entityDef->parms.gui[ guiNum ];
}
}
if( gui == NULL )
{
continue;
}
idBounds ndcBounds;
if( !R_PreciseCullSurface( drawSurf, ndcBounds ) )
{
// did we ever use this to forward an entity color to a gui that didn't set color?
// memcpy( tr.guiShaderParms, shaderParms, sizeof( tr.guiShaderParms ) );
R_RenderGuiSurf( gui, drawSurf );
}
}
}
/*
==================
R_GenerateSurfaceSubview
==================
*/
bool R_GenerateSurfaceSubview( drawSurf_t *drawSurf ) {
idBounds ndcBounds;
viewDef_t *parms;
const idMaterial *shader;
// for testing the performance hit
if ( r_skipSubviews.GetBool() ) {
return false;
}
if ( R_PreciseCullSurface( drawSurf, ndcBounds ) ) {
return false;
}
shader = drawSurf->material;
// never recurse through a subview surface that we are
// already seeing through
for ( parms = tr.viewDef ; parms ; parms = parms->superView ) {
if ( parms->subviewSurface
&& parms->subviewSurface->geo == drawSurf->geo
&& parms->subviewSurface->space->entityDef == drawSurf->space->entityDef ) {
break;
}
}
if ( parms ) {
return false;
}
// crop the scissor bounds based on the precise cull
idScreenRect scissor;
idScreenRect *v = &tr.viewDef->viewport;
scissor.x1 = v->x1 + (int)( (v->x2 - v->x1 + 1 ) * 0.5f * ( ndcBounds[0][0] + 1.0f ));
scissor.y1 = v->y1 + (int)( (v->y2 - v->y1 + 1 ) * 0.5f * ( ndcBounds[0][1] + 1.0f ));
scissor.x2 = v->x1 + (int)( (v->x2 - v->x1 + 1 ) * 0.5f * ( ndcBounds[1][0] + 1.0f ));
scissor.y2 = v->y1 + (int)( (v->y2 - v->y1 + 1 ) * 0.5f * ( ndcBounds[1][1] + 1.0f ));
// nudge a bit for safety
scissor.Expand();
scissor.Intersect( tr.viewDef->scissor );
if ( scissor.IsEmpty() ) {
// cropped out
return false;
}
// see what kind of subview we are making
if ( shader->GetSort() != SS_SUBVIEW ) {
for ( int i = 0 ; i < shader->GetNumStages() ; i++ ) {
const shaderStage_t *stage = shader->GetStage( i );
switch ( stage->texture.dynamic ) {
case DI_REMOTE_RENDER:
R_RemoteRender( drawSurf, const_cast<textureStage_t *>(&stage->texture) );
break;
case DI_MIRROR_RENDER:
R_MirrorRender( drawSurf, const_cast<textureStage_t *>(&stage->texture), scissor );
break;
case DI_XRAY_RENDER:
R_XrayRender( drawSurf, const_cast<textureStage_t *>(&stage->texture), scissor );
break;
}
}
return true;
}
// issue a new view command
parms = R_MirrorViewBySurface( drawSurf );
if ( !parms ) {
return false;
}
parms->scissor = scissor;
parms->superView = tr.viewDef;
parms->subviewSurface = drawSurf;
// triangle culling order changes with mirroring
parms->isMirror = ( ( (int)parms->isMirror ^ (int)tr.viewDef->isMirror ) != 0 );
// generate render commands for it
R_RenderView( parms );
return true;
}
/*
=================
R_AddDrawSurf
=================
*/
void R_AddDrawSurf( const srfTriangles_t *tri, const viewEntity_t *space, const renderEntity_t *renderEntity, const idMaterial *shader, const idScreenRect &scissor )
{
drawSurf_t *drawSurf;
const float *shaderParms;
static float refRegs[MAX_EXPRESSION_REGISTERS]; // don't put on stack, or VC++ will do a page touch
float generatedShaderParms[MAX_ENTITY_SHADER_PARMS];
drawSurf = ( drawSurf_t * ) R_FrameAlloc( sizeof( *drawSurf ) );
drawSurf->geo = tri;
drawSurf->space = space;
drawSurf->material = shader;
drawSurf->scissorRect = scissor;
drawSurf->sort = shader->GetSort() + tr.sortOffset;
drawSurf->dsFlags = 0;
// bumping this offset each time causes surfaces with equal sort orders to still
// deterministically draw in the order they are added
tr.sortOffset += 0.000001f;
// if it doesn't fit, resize the list
if( tr.viewDef->numDrawSurfs == tr.viewDef->maxDrawSurfs )
{
drawSurf_t **old = tr.viewDef->drawSurfs;
int count;
if( tr.viewDef->maxDrawSurfs == 0 )
{
tr.viewDef->maxDrawSurfs = INITIAL_DRAWSURFS;
count = 0;
}
else
{
count = tr.viewDef->maxDrawSurfs * sizeof( tr.viewDef->drawSurfs[0] );
tr.viewDef->maxDrawSurfs *= 2;
}
tr.viewDef->drawSurfs = ( drawSurf_t ** ) R_FrameAlloc( tr.viewDef->maxDrawSurfs * sizeof( tr.viewDef->drawSurfs[0] ) );
memcpy( tr.viewDef->drawSurfs, old, count );
}
tr.viewDef->drawSurfs[tr.viewDef->numDrawSurfs] = drawSurf;
tr.viewDef->numDrawSurfs++;
// process the shader expressions for conditionals / color / texcoords
const float *constRegs = shader->ConstantRegisters();
if( constRegs )
{
// shader only uses constant values
drawSurf->shaderRegisters = constRegs;
}
else
{
float *regs = ( float * ) R_FrameAlloc( shader->GetNumRegisters() * sizeof( float ) );
drawSurf->shaderRegisters = regs;
// a reference shader will take the calculated stage color value from another shader
// and use that for the parm0-parm3 of the current shader, which allows a stage of
// a light model and light flares to pick up different flashing tables from
// different light shaders
if( renderEntity->referenceShader )
{
// evaluate the reference shader to find our shader parms
const shaderStage_t *pStage;
renderEntity->referenceShader->EvaluateRegisters( refRegs, renderEntity->shaderParms, tr.viewDef, renderEntity->referenceSound );
pStage = renderEntity->referenceShader->GetStage( 0 );
memcpy( generatedShaderParms, renderEntity->shaderParms, sizeof( generatedShaderParms ) );
generatedShaderParms[0] = refRegs[pStage->color.registers[0]];
generatedShaderParms[1] = refRegs[pStage->color.registers[1]];
generatedShaderParms[2] = refRegs[pStage->color.registers[2]];
shaderParms = generatedShaderParms;
}
else
{
// evaluate with the entityDef's shader parms
shaderParms = renderEntity->shaderParms;
}
float oldFloatTime;
int oldTime;
if( space->entityDef && space->entityDef->parms.timeGroup )
{
oldFloatTime = tr.viewDef->floatTime;
oldTime = tr.viewDef->renderView.time;
tr.viewDef->floatTime = game->GetTimeGroupTime( space->entityDef->parms.timeGroup ) * 0.001;
tr.viewDef->renderView.time = game->GetTimeGroupTime( space->entityDef->parms.timeGroup );
}
shader->EvaluateRegisters( regs, shaderParms, tr.viewDef, renderEntity->referenceSound );
if( space->entityDef && space->entityDef->parms.timeGroup )
{
tr.viewDef->floatTime = oldFloatTime;
tr.viewDef->renderView.time = oldTime;
}
}
// check for deformations
R_DeformDrawSurf( drawSurf );
// skybox surfaces need a dynamic texgen
switch( shader->Texgen() )
{
case TG_SKYBOX_CUBE:
R_SkyboxTexGen( drawSurf, tr.viewDef->renderView.vieworg );
break;
case TG_WOBBLESKY_CUBE:
R_WobbleskyTexGen( drawSurf, tr.viewDef->renderView.vieworg );
break;
default:
break;
}
// check for gui surfaces
idUserInterface *gui = NULL;
if( !space->entityDef )
{
gui = shader->GlobalGui();
}
else
{
int guiNum = shader->GetEntityGui() - 1;
if( guiNum >= 0 && guiNum < MAX_RENDERENTITY_GUI )
{
gui = renderEntity->gui[guiNum];
}
if( gui == NULL )
{
gui = shader->GlobalGui();
}
}
if( gui )
{
// force guis on the fast time
float oldFloatTime;
int oldTime;
oldFloatTime = tr.viewDef->floatTime;
oldTime = tr.viewDef->renderView.time;
tr.viewDef->floatTime = game->GetTimeGroupTime( 1 ) * 0.001;
tr.viewDef->renderView.time = game->GetTimeGroupTime( 1 );
idBounds ndcBounds;
if( !R_PreciseCullSurface( drawSurf, ndcBounds ) )
{
R_RenderGuiSurf( gui, drawSurf );
}
tr.viewDef->floatTime = oldFloatTime;
tr.viewDef->renderView.time = oldTime;
}
// we can't add subviews at this point, because that would
// increment tr.viewCount, messing up the rest of the surface
// adds for this view
}