139    buffer = _mesa_back_to_front_if_single_buffered(ctx->DrawBuffer, buffer);  in draw_buffer_enum_to_bitmask()
324    if (fb == ctx->DrawBuffer) {  in draw_buffer()
325       if (ctx->Driver.DrawBuffer)  in draw_buffer()
326          ctx->Driver.DrawBuffer(ctx);  in draw_buffer()
353    draw_buffer_no_error(ctx, ctx->DrawBuffer, buffer, "glDrawBuffer");  in _mesa_DrawBuffer_no_error()
361    draw_buffer_error(ctx, ctx->DrawBuffer, buffer, "glDrawBuffer");  in _mesa_DrawBuffer()
633    if (fb == ctx->DrawBuffer) {  in draw_buffers()
634       if (ctx->Driver.DrawBuffer)  in draw_buffers()
635          ctx->Driver.DrawBuffer(ctx);  in draw_buffers()
662    draw_buffers_no_error(ctx, ctx->DrawBuffer, n, buffers, "glDrawBuffers");  in _mesa_DrawBuffers_no_error()
670    draw_buffers_error(ctx, ctx->DrawBuffer, n, buffers, "glDrawBuffers");  in _mesa_DrawBuffers()
838          if (ctx->Color.DrawBuffer[buf] != fb->ColorDrawBuffer[buf]) {  in _mesa_drawbuffers()
840             ctx->Color.DrawBuffer[buf] = fb->ColorDrawBuffer[buf];  in _mesa_drawbuffers()
856    assert(_mesa_is_winsys_fbo(ctx->DrawBuffer));  in _mesa_update_draw_buffers()
858    _mesa_drawbuffers(ctx, ctx->DrawBuffer, ctx->Const.MaxDrawBuffers,  in _mesa_update_draw_buffers()
859                      ctx->Color.DrawBuffer, NULL);  in _mesa_update_draw_buffers()