/*
=============
R_UploadStretchRaw
=============
*/
void R_UploadStretchRaw( int texture, int cols, int rows, int width, int height, const byte *data )
{
byte *raw = NULL;
gltexture_t *tex;
if( !GL_Support( GL_ARB_TEXTURE_NPOT_EXT ))
{
// check the dimensions
width = NearestPOW( width, true );
height = NearestPOW( height, false );
}
else
{
width = bound( 128, width, glConfig.max_2d_texture_size );
height = bound( 128, height, glConfig.max_2d_texture_size );
}
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_UploadStretchRaw: size %i exceeds hardware limits\n", cols );
if( rows > glConfig.max_2d_texture_size )
Host_Error( "R_UploadStretchRaw: size %i exceeds hardware limits\n", rows );
tex = R_GetTexture( texture );
GL_Bind( GL_TEXTURE0, texture );
tex->width = cols;
tex->height = rows;
pglTexImage2D( GL_TEXTURE_2D, 0, tex->format, cols, rows, 0, GL_BGRA, GL_UNSIGNED_BYTE, raw );
GL_TexFilter( tex, false );
}
/*
=============
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();
}
/*
================
R_DrawMirrors
Draw all viewpasess from mirror position
Mirror textures will be drawn in normal pass
================
*/
void R_DrawMirrors( void )
{
ref_instance_t oldRI;
mplane_t plane;
msurface_t *surf, *surf2;
int i, oldframecount;
mextrasurf_t *es, *tmp, *mirrorchain;
vec3_t forward, right, up;
vec3_t origin, angles;
matrix4x4 mirrormatrix;
cl_entity_t *e;
model_t *m;
float d;
if( !tr.num_mirror_entities ) return; // mo mirrors for this frame
oldRI = RI; // make refinst backup
oldframecount = tr.framecount;
for( i = 0; i < tr.num_mirror_entities; i++ )
{
mirrorchain = tr.mirror_entities[i].chain;
for( es = mirrorchain; es != NULL; es = es->mirrorchain )
{
RI.currententity = e = tr.mirror_entities[i].ent;
RI.currentmodel = m = RI.currententity->model;
surf = INFO_SURF( es, m );
ASSERT( RI.currententity != NULL );
ASSERT( RI.currentmodel != NULL );
// NOTE: copy mirrortexture and mirrormatrix from another surfaces
// from this entity\world that has same planes and reduce number of viewpasses
// make sure what we have one pass at least
if( es != mirrorchain )
{
for( tmp = mirrorchain; tmp != es; tmp = tmp->mirrorchain )
{
surf2 = INFO_SURF( tmp, m );
if( !tmp->mirrortexturenum )
continue; // not filled?
if( surf->plane->dist != surf2->plane->dist )
continue;
if( !VectorCompare( surf->plane->normal, surf2->plane->normal ))
continue;
// found surface with same plane!
break;
}
if( tmp != es && tmp && tmp->mirrortexturenum )
{
// just copy reflection texture from surface with same plane
Matrix4x4_Copy( es->mirrormatrix, tmp->mirrormatrix );
es->mirrortexturenum = tmp->mirrortexturenum;
continue; // pass skiped
}
}
R_PlaneForMirror( surf, &plane, mirrormatrix );
d = -2.0f * ( DotProduct( RI.vieworg, plane.normal ) - plane.dist );
VectorMA( RI.vieworg, d, plane.normal, origin );
d = -2.0f * DotProduct( RI.vforward, plane.normal );
VectorMA( RI.vforward, d, plane.normal, forward );
VectorNormalize( forward );
d = -2.0f * DotProduct( RI.vright, plane.normal );
VectorMA( RI.vright, d, plane.normal, right );
VectorNormalize( right );
d = -2.0f * DotProduct( RI.vup, plane.normal );
VectorMA( RI.vup, d, plane.normal, up );
VectorNormalize( up );
VectorsAngles( forward, right, up, angles );
angles[ROLL] = -angles[ROLL];
RI.params = RP_MIRRORVIEW|RP_CLIPPLANE|RP_OLDVIEWLEAF;
RI.clipPlane = plane;
RI.clipFlags |= ( 1<<5 );
RI.frustum[5] = plane;
RI.frustum[5].signbits = SignbitsForPlane( RI.frustum[5].normal );
RI.frustum[5].type = PLANE_NONAXIAL;
RI.refdef.viewangles[0] = anglemod( angles[0] );
RI.refdef.viewangles[1] = anglemod( angles[1] );
RI.refdef.viewangles[2] = anglemod( angles[2] );
VectorCopy( origin, RI.refdef.vieworg );
VectorCopy( origin, RI.cullorigin );
// put pvsorigin before the mirror plane to avoid get full visibility on world mirrors
if( RI.currententity == clgame.entities )
{
VectorMA( es->origin, 1.0f, plane.normal, origin );
}
else
{
Matrix4x4_VectorTransform( mirrormatrix, es->origin, origin );
VectorMA( origin, 1.0f, plane.normal, origin );
}
VectorCopy( origin, RI.pvsorigin );
// combine two leafs from client and mirror views
r_viewleaf = Mod_PointInLeaf( oldRI.pvsorigin, cl.worldmodel->nodes );
r_viewleaf2 = Mod_PointInLeaf( RI.pvsorigin, cl.worldmodel->nodes );
if( GL_Support( GL_ARB_TEXTURE_NPOT_EXT ))
{
// allow screen size
RI.viewport[2] = bound( 96, RI.viewport[2], 1024 );
RI.viewport[3] = bound( 72, RI.viewport[3], 768 );
}
else
{
RI.viewport[2] = NearestPOW( RI.viewport[2], true );
RI.viewport[3] = NearestPOW( RI.viewport[3], true );
RI.viewport[2] = bound( 128, RI.viewport[2], 1024 );
RI.viewport[3] = bound( 64, RI.viewport[3], 512 );
}
tr.framecount++;
R_RenderScene( &RI.refdef );
r_stats.c_mirror_passes++;
es->mirrortexturenum = R_AllocateMirrorTexture();
// create personal projection matrix for mirror
if( VectorIsNull( e->origin ) && VectorIsNull( e->angles ))
{
Matrix4x4_Copy( es->mirrormatrix, RI.worldviewProjectionMatrix );
}
else
{
Matrix4x4_ConcatTransforms( RI.modelviewMatrix, RI.worldviewMatrix, mirrormatrix );
Matrix4x4_Concat( es->mirrormatrix, RI.projectionMatrix, RI.modelviewMatrix );
}
RI = oldRI; // restore ref instance
}
// clear chain for this entity
for( es = mirrorchain; es != NULL; )
{
tmp = es->mirrorchain;
es->mirrorchain = NULL;
es = tmp;
}
tr.mirror_entities[i].chain = NULL; // done
tr.mirror_entities[i].ent = NULL;
}
r_oldviewleaf = r_viewleaf = NULL; // force markleafs next frame
tr.framecount = oldframecount; // restore real framecount
tr.num_mirror_entities = 0;
tr.num_mirrors_used = 0;
}
