void GAME_EXPORT GL_SetRenderMode( int mode )
{
pglTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
switch( mode )
{
case kRenderNormal:
default:
pglDisable( GL_BLEND );
pglDisable( GL_ALPHA_TEST );
break;
case kRenderTransColor:
case kRenderTransTexture:
pglEnable( GL_BLEND );
pglDisable( GL_ALPHA_TEST );
pglBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
break;
case kRenderTransAlpha:
pglDisable( GL_BLEND );
pglEnable( GL_ALPHA_TEST );
break;
case kRenderGlow:
case kRenderTransAdd:
pglEnable( GL_BLEND );
pglDisable( GL_ALPHA_TEST );
#if defined(XASH_BLEND_ES_WORKAROUND) // Problem with blending exists on every GLES configuration, not only on Android
pglBlendFunc( GL_ONE, GL_ONE );
#else
pglBlendFunc( GL_SRC_ALPHA, GL_ONE );
#endif
break;
}
}
PDGL_API void pdglBlendFunc(int sfac, int dfac)
{
if(pglBlendFunc)
{ pglBlendFunc(sfac, dfac); return; }
pglBlendFunc=pdglGetProcAddress("glBlendFunc");
pglBlendFunc(sfac, dfac);
}
void VGUI_SetupDrawingRect( int *pColor )
{
pglEnable( GL_BLEND );
pglDisable( GL_ALPHA_TEST );
pglBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
pglColor4ub( pColor[0], pColor[1], pColor[2], 255 - pColor[3] );
}
// set blending operations
static void ogl_BlendFunc( GfxBlend eSrc, GfxBlend eDst)
{
// check consistency
ASSERT( _pGfx->gl_eCurrentAPI==GAT_OGL);
GLenum gleSrc, gleDst;
#ifndef NDEBUG
GfxBlend gfxSrc, gfxDst;
pglGetIntegerv( GL_BLEND_SRC, (GLint*)&gleSrc);
pglGetIntegerv( GL_BLEND_DST, (GLint*)&gleDst);
OGL_CHECKERROR;
gfxSrc = BlendFromOGL(gleSrc);
gfxDst = BlendFromOGL(gleDst);
ASSERT( gfxSrc==GFX_eBlendSrc && gfxDst==GFX_eBlendDst);
#endif
// cached?
if( eSrc==GFX_eBlendSrc && eDst==GFX_eBlendDst && gap_bOptimizeStateChanges) return;
_sfStats.StartTimer(CStatForm::STI_GFXAPI);
gleSrc = BlendToOGL(eSrc);
gleDst = BlendToOGL(eDst);
pglBlendFunc( gleSrc, gleDst);
OGL_CHECKERROR;
// done
GFX_eBlendSrc = eSrc;
GFX_eBlendDst = eDst;
_sfStats.StopTimer(CStatForm::STI_GFXAPI);
}
void VGUI_SetupDrawingImage( int *pColor )
{
pglEnable( GL_BLEND );
pglEnable( GL_ALPHA_TEST );
pglAlphaFunc( GL_GREATER, 0.0f );
pglBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
pglTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
pglColor4ub( pColor[0], pColor[1], pColor[2], 255 - pColor[3] );
}
/*
===========
SCR_DrawNetGraph
===========
*/
void SCR_DrawNetGraph( void )
{
wrect_t rect;
float avg_ping;
int ping_count;
int w, x, y;
if( !host.developer )
return;
if( cls.state != ca_active )
return;
if( !net_graph->value )
return;
if( net_scale->value <= 0 )
Cvar_SetFloat( "net_scale", 0.1f );
NetGraph_GetScreenPos( &rect, &w, &x, &y );
NetGraph_GetFrameData( &avg_ping, &ping_count );
NetGraph_DrawTextFields( x, y, w, rect, ping_count, avg_ping, packet_loss, packet_choke );
if( net_graph->value < 3 )
{
pglEnable( GL_BLEND );
pglDisable( GL_TEXTURE_2D );
pglTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
pglBlendFunc( GL_SRC_ALPHA, GL_ONE );
pglBegin( GL_QUADS ); // draw all the fills as a long solid sequence of quads for speedup reasons
// NOTE: fill colors without texture at this point
NetGraph_DrawDataUsage( x, y, w );
NetGraph_DrawTimes( rect, x, w );
pglEnd();
pglColor4ub( 255, 255, 255, 255 );
pglEnable( GL_TEXTURE_2D );
pglDisable( GL_BLEND );
}
}
/*
=================
R_Bloom_DownsampleView
=================
*/
static void R_Bloom_DownsampleView( void )
{
pglDisable( GL_BLEND );
pglColor4f( 1.0f, 1.0f, 1.0f, 1.0f );
if( r_screendownsamplingtexture_size )
{
// stepped downsample
int midsample_width = ( r_screendownsamplingtexture_size * sampleText_tcw );
int midsample_height = ( r_screendownsamplingtexture_size * sampleText_tch );
// copy the screen and draw resized
GL_Bind( GL_TEXTURE0, r_bloomscreentexture );
pglCopyTexSubImage2D( GL_TEXTURE_2D, 0, 0, 0, curView_x, glState.height - ( curView_y + curView_height ), curView_width, curView_height );
R_Bloom_Quad( 0, glState.height - midsample_height, midsample_width, midsample_height, screenTex_tcw, screenTex_tch );
// now copy into downsampling (mid-sized) texture
GL_Bind( GL_TEXTURE0, r_bloomdownsamplingtexture );
pglCopyTexSubImage2D( GL_TEXTURE_2D, 0, 0, 0, 0, 0, midsample_width, midsample_height );
// now draw again in bloom size
pglColor4f( 0.5f, 0.5f, 0.5f, 1.0f );
R_Bloom_Quad( 0, glState.height - sample_height, sample_width, sample_height, sampleText_tcw, sampleText_tch );
// now blend the big screen texture into the bloom generation space (hoping it adds some blur)
pglEnable( GL_BLEND );
pglBlendFunc( GL_ONE, GL_ONE );
pglColor4f( 0.5f, 0.5f, 0.5f, 1.0f );
GL_Bind( GL_TEXTURE0, r_bloomscreentexture );
R_Bloom_Quad( 0, glState.height - sample_height, sample_width, sample_height, screenTex_tcw, screenTex_tch );
pglColor4f( 1.0f, 1.0f, 1.0f, 1.0f );
pglDisable( GL_BLEND );
}
else
{
// downsample simple
GL_Bind( GL_TEXTURE0, r_bloomscreentexture );
pglCopyTexSubImage2D( GL_TEXTURE_2D, 0, 0, 0, curView_x, glState.height - ( curView_y + curView_height ), curView_width, curView_height );
R_Bloom_Quad( 0, glState.height - sample_height, sample_width, sample_height, screenTex_tcw, screenTex_tch );
}
}
/*
=================
R_Bloom_DrawEffect
=================
*/
static void R_Bloom_DrawEffect( void )
{
GL_Bind( GL_TEXTURE0, r_bloomeffecttexture );
pglTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
pglColor4f( r_bloom_alpha->value, r_bloom_alpha->value, r_bloom_alpha->value, 1.0f );
pglBlendFunc( GL_ONE, GL_ONE );
pglEnable( GL_BLEND );
pglBegin( GL_QUADS );
pglTexCoord2f( 0, sampleText_tch );
pglVertex2f( curView_x, curView_y );
pglTexCoord2f( 0, 0 );
pglVertex2f( curView_x, curView_y+curView_height );
pglTexCoord2f( sampleText_tcw, 0 );
pglVertex2f( curView_x+curView_width, curView_y+curView_height );
pglTexCoord2f( sampleText_tcw, sampleText_tch );
pglVertex2f( curView_x+curView_width, curView_y );
pglEnd();
pglDisable( GL_BLEND );
}
void DrawSurfaceDecals( msurface_t *fa )
{
decal_t *p;
cl_entity_t *e;
if( !fa->pdecals ) return;
e = RI.currententity;
ASSERT( e != NULL );
if( e->curstate.rendermode == kRenderNormal || e->curstate.rendermode == kRenderTransAlpha )
{
pglDepthMask( GL_FALSE );
pglEnable( GL_BLEND );
if( e->curstate.rendermode == kRenderTransAlpha )
pglDisable( GL_ALPHA_TEST );
}
if( e->curstate.rendermode == kRenderTransColor )
pglEnable( GL_TEXTURE_2D );
if( e->curstate.rendermode == kRenderTransTexture || e->curstate.rendermode == kRenderTransAdd )
GL_Cull( GL_NONE );
pglEnable( GL_POLYGON_OFFSET_FILL );
pglBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
if( fa->flags & SURF_TRANSPARENT && glState.stencilEnabled )
{
mtexinfo_t *tex = fa->texinfo;
for( p = fa->pdecals; p; p = p->pnext )
{
if( p->texture )
{
float *o, *v;
int i, numVerts;
o = R_DecalSetupVerts( p, fa, p->texture, &numVerts );
pglEnable( GL_STENCIL_TEST );
pglStencilFunc( GL_ALWAYS, 1, 0xFFFFFFFF );
pglColorMask( GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE );
pglStencilOp( GL_KEEP, GL_KEEP, GL_REPLACE );
pglBegin( GL_POLYGON );
for( i = 0, v = o; i < numVerts; i++, v += VERTEXSIZE )
{
v[5] = ( DotProduct( v, tex->vecs[0] ) + tex->vecs[0][3] ) / tex->texture->width;
v[6] = ( DotProduct( v, tex->vecs[1] ) + tex->vecs[1][3] ) / tex->texture->height;
pglTexCoord2f( v[5], v[6] );
pglVertex3fv( v );
}
pglEnd();
pglStencilOp( GL_KEEP, GL_KEEP, GL_DECR );
pglEnable( GL_ALPHA_TEST );
pglBegin( GL_POLYGON );
for( i = 0, v = o; i < numVerts; i++, v += VERTEXSIZE )
{
pglTexCoord2f( v[5], v[6] );
pglVertex3fv( v );
}
pglEnd();
pglDisable( GL_ALPHA_TEST );
pglColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
pglStencilFunc( GL_EQUAL, 0, 0xFFFFFFFF );
pglStencilOp( GL_KEEP, GL_KEEP, GL_KEEP );
}
}
}
for( p = fa->pdecals; p; p = p->pnext )
{
if( p->texture )
{
gltexture_t *glt = R_GetTexture( p->texture );
// normal HL decal with alpha-channel
if( glt->flags & TF_HAS_ALPHA )
{
// draw transparent decals with GL_MODULATE
if( glt->fogParams[3] > DECAL_TRANSPARENT_THRESHOLD )
pglTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
else pglTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE );
pglBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
}
else
{
// color decal like detail texture. Base color is 127 127 127
pglTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE );
pglBlendFunc( GL_DST_COLOR, GL_SRC_COLOR );
}
DrawSingleDecal( p, fa );
}
}
if( fa->flags & SURF_TRANSPARENT && glState.stencilEnabled )
pglDisable( GL_STENCIL_TEST );
if( e->curstate.rendermode == kRenderNormal || e->curstate.rendermode == kRenderTransAlpha )
{
pglDepthMask( GL_TRUE );
pglDisable( GL_BLEND );
if( e->curstate.rendermode == kRenderTransAlpha )
pglEnable( GL_ALPHA_TEST );
}
pglDisable( GL_POLYGON_OFFSET_FILL );
if( e->curstate.rendermode == kRenderTransTexture || e->curstate.rendermode == kRenderTransAdd )
GL_Cull( GL_FRONT );
if( e->curstate.rendermode == kRenderTransColor )
pglDisable( GL_TEXTURE_2D );
// restore blendfunc here
if( e->curstate.rendermode == kRenderTransAdd || e->curstate.rendermode == kRenderGlow )
pglBlendFunc( GL_SRC_ALPHA, GL_ONE );
}
/*
=================
R_Bloom_GeneratexDiamonds
=================
*/
static void R_Bloom_GeneratexDiamonds( void )
{
int i, j;
float intensity;
// set up sample size workspace
pglScissor( 0, 0, sample_width, sample_height );
pglViewport( 0, 0, sample_width, sample_height );
pglMatrixMode( GL_PROJECTION );
pglLoadIdentity();
pglOrtho( 0, sample_width, sample_height, 0, -10, 100 );
pglMatrixMode( GL_MODELVIEW );
pglLoadIdentity();
// copy small scene into r_bloomeffecttexture
GL_Bind( GL_TEXTURE0, r_bloomeffecttexture );
pglCopyTexSubImage2D( GL_TEXTURE_2D, 0, 0, 0, 0, 0, sample_width, sample_height );
// start modifying the small scene corner
pglColor4f( 1.0f, 1.0f, 1.0f, 1.0f );
pglEnable( GL_BLEND );
// darkening passes
if( r_bloom_darken->value )
{
pglTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
pglBlendFunc( GL_DST_COLOR, GL_ZERO );
for( i = 0; i < (int)r_bloom_darken->value; i++ )
R_Bloom_SamplePass( 0, 0 );
pglCopyTexSubImage2D( GL_TEXTURE_2D, 0, 0, 0, 0, 0, sample_width, sample_height );
}
// bluring passes
pglBlendFunc( GL_ONE, GL_ONE_MINUS_SRC_COLOR );
if( r_bloom_diamond_size->value > 7.0f || r_bloom_diamond_size->value <= 3.0f )
{
if( r_bloom_diamond_size->value != 8.0f )
CVAR_SET_FLOAT( "r_bloom_diamond_size", 8.0f );
for( i = 0; i < r_bloom_diamond_size->value; i++ )
{
for( j = 0; j < r_bloom_diamond_size->value; j++ )
{
intensity = r_bloom_intensity->value * 0.3f * Diamond8x[i][j];
if( intensity < 0.01f ) continue;
pglColor4f( intensity, intensity, intensity, 1.0f );
R_Bloom_SamplePass( i-4, j-4 );
}
}
}
else if( r_bloom_diamond_size->value > 5.0f )
{
if( r_bloom_diamond_size->value != 6.0f )
CVAR_SET_FLOAT( "r_bloom_diamond_size", 6.0f );
for( i = 0; i < r_bloom_diamond_size->value; i++ )
{
for( j = 0; j < r_bloom_diamond_size->value; j++ )
{
intensity = r_bloom_intensity->value * 0.5f * Diamond6x[i][j];
if( intensity < 0.01f ) continue;
pglColor4f( intensity, intensity, intensity, 1.0f );
R_Bloom_SamplePass( i-3, j-3 );
}
}
}
else if( r_bloom_diamond_size->value > 3.0f )
{
if( r_bloom_diamond_size->value != 4.0f )
CVAR_SET_FLOAT( "r_bloom_diamond_size", 4.0f );
for( i = 0; i < r_bloom_diamond_size->value; i++ )
{
for( j = 0; j < r_bloom_diamond_size->value; j++ )
{
intensity = r_bloom_intensity->value * 0.8f * Diamond4x[i][j];
if( intensity < 0.01f ) continue;
pglColor4f( intensity, intensity, intensity, 1.0f );
R_Bloom_SamplePass( i-2, j-2 );
}
}
}
pglCopyTexSubImage2D( GL_TEXTURE_2D, 0, 0, 0, 0, 0, sample_width, sample_height );
// restore full screen workspace
pglScissor( 0, 0, glState.width, glState.height );
pglViewport( 0, 0, glState.width, glState.height );
pglMatrixMode( GL_PROJECTION );
pglLoadIdentity();
pglOrtho( 0, glState.width, glState.height, 0, -10, 100 );
pglMatrixMode( GL_MODELVIEW );
pglLoadIdentity();
}