Example #1
0
void VGUI_UploadTextureBlock( int id, int drawX, int drawY, const byte *rgba, int blockWidth, int blockHeight )
{
	if( id <= 0 || id >= VGUI_MAX_TEXTURES || g_textures[id] == 0 || g_textures[id] == cls.fillImage )
	{
		MsgDev( D_ERROR, "VGUI_UploadTextureBlock: bad texture %i. Ignored\n", id );
		return;
	}

	pglTexSubImage2D( GL_TEXTURE_2D, 0, drawX, drawY, blockWidth, blockHeight, GL_RGBA, GL_UNSIGNED_BYTE, rgba );
	g_iBoundTexture = id;
}
Example #2
0
/*
=============
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();
}