// set texture modulation mode
static void ogl_SetTextureModulation( INDEX iScale)
{
// check consistency
ASSERT( _pGfx->gl_eCurrentAPI==GAT_OGL);
#ifndef NDEBUG
// check current modulation
GLint iRet;
pglGetTexEnviv( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, &iRet);
ASSERT( (GFX_iTexModulation[GFX_iActiveTexUnit]==1 && iRet==GL_MODULATE)
|| (GFX_iTexModulation[GFX_iActiveTexUnit]==2 && iRet==GL_COMBINE_EXT));
OGL_CHECKERROR;
#endif
// cached?
ASSERT( iScale==1 || iScale==2);
if( GFX_iTexModulation[GFX_iActiveTexUnit]==iScale) return;
GFX_iTexModulation[GFX_iActiveTexUnit] = iScale;
_sfStats.StartTimer(CStatForm::STI_GFXAPI);
if( iScale==2) {
pglTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
pglTexEnvi( GL_TEXTURE_ENV, GL_COMBINE_RGB_EXT, GL_MODULATE);
pglTexEnvf( GL_TEXTURE_ENV, GL_RGB_SCALE_EXT, 2.0f);
} else {
pglTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
} OGL_CHECKERROR;
_sfStats.StopTimer(CStatForm::STI_GFXAPI);
}
PDGL_API void pdglTexEnvi(GLenum target, GLenum pname, GLint param)
{
if(pglTexEnvi)
{ pglTexEnvi(target, pname, param); return; }
pglTexEnvi=pdglGetProcAddress("glTexEnvi");
pglTexEnvi(target, pname, param);
}
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;
}
}
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] );
}
/*
=================
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 );
}
/*
=============
R_DrawStretchRaw
=============
*/
void R_DrawStretchRaw( float x, float y, float w, float h, int cols, int rows, const byte *data, qboolean dirty )
{
byte *raw = NULL;
gltexture_t *tex;
if( !GL_Support( GL_ARB_TEXTURE_NPOT_EXT ))
{
int width = 1, height = 1;
// check the dimensions
width = NearestPOW( cols, true );
height = NearestPOW( rows, false );
if( cols != width || rows != height )
{
raw = GL_ResampleTexture( data, cols, rows, width, height, false );
cols = width;
rows = height;
}
}
else
{
raw = (byte *)data;
}
if( cols > glConfig.max_2d_texture_size )
Host_Error( "R_DrawStretchRaw: size %i exceeds hardware limits\n", cols );
if( rows > glConfig.max_2d_texture_size )
Host_Error( "R_DrawStretchRaw: size %i exceeds hardware limits\n", rows );
pglDisable( GL_BLEND );
pglDisable( GL_ALPHA_TEST );
pglTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE );
tex = R_GetTexture( tr.cinTexture );
GL_Bind( GL_TEXTURE0, tr.cinTexture );
if( cols == tex->width && rows == tex->height )
{
if( dirty )
{
pglTexSubImage2D( GL_TEXTURE_2D, 0, 0, 0, cols, rows, GL_BGRA, GL_UNSIGNED_BYTE, raw );
}
}
else
{
tex->width = cols;
tex->height = rows;
if( dirty )
{
pglTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, cols, rows, 0, GL_BGRA, GL_UNSIGNED_BYTE, raw );
}
}
pglBegin( GL_QUADS );
pglTexCoord2f( 0, 0 );
pglVertex2f( x, y );
pglTexCoord2f( 1, 0 );
pglVertex2f( x + w, y );
pglTexCoord2f( 1, 1 );
pglVertex2f( x + w, y + h );
pglTexCoord2f( 0, 1 );
pglVertex2f( x, y + h );
pglEnd();
}
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();
}