C++ (Cpp) RB_SelectTextureUnit Examples

Example #1

File: r_backend.c Project: DenMSC/qfusion

/*
* RB_BindImage
*/
void RB_BindImage( int tmu, const image_t *tex )
{
    GLuint texnum;

    assert( tex != NULL );
    assert( tex->texnum != 0 );

    if( tex->missing ) {
        tex = rsh.noTexture;
    } else if( !tex->loaded ) {
        // not yet loaded from disk
        tex = tex->flags & IT_CUBEMAP ? rsh.whiteCubemapTexture : rsh.whiteTexture;
    } else if( rsh.noTexture && ( r_nobind->integer && tex->texnum != 0 ) ) {
        // performance evaluation option
        tex = rsh.noTexture;
    }

    if( rb.gl.flushTextures ) {
        rb.gl.flushTextures = false;
        memset( rb.gl.currentTextures, 0, sizeof( rb.gl.currentTextures ) );
    }

    texnum = tex->texnum;
    if( rb.gl.currentTextures[tmu] == texnum )
        return;

    rb.gl.currentTextures[tmu] = texnum;

    RB_SelectTextureUnit( tmu );

    qglBindTexture( R_TextureTarget( tex->flags, NULL ), tex->texnum );

    rb.stats.c_totalBinds++;
}

Example #2

/*
* RB_SetGLDefaults
*/
static void RB_SetGLDefaults( void )
{
	int i;

	qglClearColor( 1, 0, 0.5, 0.5 );

	if( glConfig.stencilEnabled )
	{
		qglStencilMask( ( GLuint ) ~0 );
		qglStencilFunc( GL_EQUAL, 128, 0xFF );
		qglStencilOp( GL_KEEP, GL_KEEP, GL_INCR );
	}

	// properly disable multitexturing at startup
	for( i = glConfig.maxTextureUnits-1; i >= 0; i-- )
	{
		RB_SelectTextureUnit( i );
		qglDisable( GL_TEXTURE_2D );
	}
	qglEnable( GL_TEXTURE_2D );

	qglDisable( GL_CULL_FACE );
	qglFrontFace( GL_CCW );
	qglEnable( GL_SCISSOR_TEST );
	qglDisable( GL_BLEND );
	qglDisable( GL_ALPHA_TEST );
	qglDepthFunc( GL_LEQUAL );
	qglDepthMask( GL_FALSE );
	qglDisable( GL_POLYGON_OFFSET_FILL );
	qglColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
	qglEnable( GL_DEPTH_TEST );
	qglShadeModel( GL_SMOOTH );
	if( qglPolygonMode ) {
		qglPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
	}
	qglFrontFace( GL_CCW );

	rb.gl.state = 0;
	rb.gl.frontFace = qfalse;
	rb.gl.currentTMU = -1;
	rb.gl.faceCull = 0;
	rb.gl.polygonOffset[0] = rb.gl.polygonOffset[1] = 0;
	memset( rb.gl.currentTextures, 0, sizeof( rb.gl.currentTextures ) );
}

Example #3

File: r_backend.c Project: DenMSC/qfusion

/*
* RB_BeginRegistration
*/
void RB_BeginRegistration( void )
{
    int i;

    RB_RegisterStreamVBOs();
    RB_BindVBO( 0, 0 );

    // unbind all texture targets on all TMUs
    for( i = MAX_TEXTURE_UNITS - 1; i >= 0; i-- ) {
        RB_SelectTextureUnit( i );

        qglBindTexture( GL_TEXTURE_CUBE_MAP_ARB, 0 );
        if( glConfig.ext.texture_array )
            qglBindTexture( GL_TEXTURE_2D_ARRAY_EXT, 0 );
        if( glConfig.ext.texture3D )
            qglBindTexture( GL_TEXTURE_3D_EXT, 0 );
        qglBindTexture( GL_TEXTURE_2D, 0 );
    }

    RB_FlushTextureCache();
}

Example #4

/*
* RB_BindTexture
*/
void RB_BindTexture( int tmu, const image_t *tex )
{
	GLuint texnum;

	assert( tex != NULL );

	if( r_nobind->integer && r_notexture && tex->texnum != 0 )  // performance evaluation option
		tex = r_notexture;

	RB_SelectTextureUnit( tmu );

	texnum = tex->texnum;
	if( rb.gl.currentTextures[tmu] == texnum )
		return;

	rb.gl.anyTexturesBound = 1;
	rb.gl.currentTextures[tmu] = texnum;
	if( tex->flags & IT_CUBEMAP )
		qglBindTexture( GL_TEXTURE_CUBE_MAP_ARB, texnum );
	else
		qglBindTexture( GL_TEXTURE_2D, texnum );
}